CN203754575U - Sludge storage tank - Google Patents
Sludge storage tank Download PDFInfo
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- CN203754575U CN203754575U CN201420036803.8U CN201420036803U CN203754575U CN 203754575 U CN203754575 U CN 203754575U CN 201420036803 U CN201420036803 U CN 201420036803U CN 203754575 U CN203754575 U CN 203754575U
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- Prior art keywords
- mud
- storage pool
- pipe
- sludge
- water pipe
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- 239000010802 sludge Substances 0.000 title abstract description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 230000000694 effects Effects 0.000 claims abstract description 30
- 230000000630 rising effect Effects 0.000 claims description 20
- 230000018044 dehydration Effects 0.000 abstract description 6
- 238000006297 dehydration reaction Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000008719 thickening Effects 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 description 13
- 238000000605 extraction Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000011049 filling Methods 0.000 description 8
- 238000004062 sedimentation Methods 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 7
- 239000010801 sewage sludge Substances 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004094 preconcentration Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241000628997 Flos Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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Abstract
The utility model provides a sludge storage tank. The sludge storage tank comprises a sludge storage tank body, a sludge inlet pipe and a water outlet pipe, wherein the sludge storage tank body is provided with a sludge outlet; the sludge inlet pipe and the water outlet pipe extend to the upper part from the bottom of the sludge storage tank body; the upper end of the sludge inlet pipe is connected with a point-based sludge inlet perforated filter pipe arranged along the inner walls of the sludge storage tank body; the upper end of the water outlet pipe is connected with a fixed decanted water pipe; the fixed decanted water pipe is higher than the point-based sludge inlet perforated filter pipe. The sludge storage tank has the advantages of good sludge thickening effect and high dehydration efficiency.
Description
Technical field
The utility model relates to sewage treatment facility, relates in particular to a kind of mud storage pool.
Background technology
In recent years, China population growth and the level of urbanization constantly promote, and municipal sewage treatment facility is also popularized, and along with the raising of wastewater treatment rate and the in-depth of degree for the treatment of, the output of byproduct mud will have larger growth, estimate that the year two thousand twenty will reach 53,600,000,000 m
3/ d, but also with annual 10% speed increment.
Sludge components is very complicated, the floss that contains the solid particulates such as the silt of sneaking in sanitary sewage and trade effluent, fiber, plant and animal residues and condense, the synthesis of the hazardous and noxious substances such as various colloids, organic matter and the metallic element adsorbing, microorganism, germ, worm's ovum, very easily cause the secondary pollution to underground water, soil etc., at present, sludge treatment is disposed becomes another extremely urgent, the urgent need to solve the problem after sewage disposal.
Municipal sewage treatment is to realize by pollutent the final removal from Sewage treatment systems by getting rid of the mode of excess sludge, according to another < < urban wastewater treatment firm pollutant emission standard > > (GB18918-2002), understand, in sludge handling process in sewage work, water ratio is an important indicator weighing the sludge quality that dispatches from the factory.The water ratio of general Primary Settling Tanks of Municipal Wastewater Treatment Plant mud is generally 97%-98%, the water ratio of second pond mud is generally 99.2%-99.8%, because water ratio is high, volume is large, be unfavorable for collection, the storage of mud, transport efficiency is low and increased processing cost of disposal, for meeting the mud shale index of dispatching from the factory, water ratio need be down to below 80%.
At present, the conventional sludge concentration and dewatering form of domestic city sewage work mainly contains two kinds: the one, with integrated thickening machine directly by sludge dewatering, the 2nd, first adopt concentration basin to concentrate mud, and then with water extracter, thickened sludge dewatered.Above-mentioned two kinds of methods can tentatively realize sludge reduction, moisture percentage in sewage sludge are down to below 80%, but characteristic based on mud, dehydration difficulty is larger.
Two kinds of conventional sludge dewatering modes of comprehensive more current Sewage Plant, its key problem is that these two kinds of modes exist the contradiction between processing efficiency and processing cost to a certain extent.On the one hand, integrated thickening machine is excessive through mud storage pool, directly by excess sludge thickening, simplified the treatment process section of mud pre-concentration, reduce preliminary engineering investment, but because lignin-sludge water ratio is too high, caused equipment operating efficiency on the low side, discharge identical mud longer required working time, virtually increased the energy consumption of system operation, on the other hand, excess sludge first passes through sludge thickener pre-concentration, after being down to 95-97%, moisture percentage in sewage sludge carries out again mechanical dehydration, effectively improved equipment operating efficiency, reduced to a certain extent system operation energy consumption cost, but owing to having increased mud concentration technology section, make preliminary engineering investment higher, and the process operation mode of mud storage pool routine is for entering continuously mud mud extraction, by liquidometer in pond, control the start and stop of residual sludge pump and mud spiral pump, under this kind of operation scheme, mud storage pool mud extraction water ratio is higher, cause follow-up sludge dewatering equipment desliming efficiency lower, current consumption is higher, flocculant dosage is higher, if it is improper that mud concentration time is controlled, also can affect water outlet total phosphorus concentration index and the dehydrating effect of Sewage Plant.
Excess sludge high-efficiency dehydration technology is the important research direction that sewage work reduces costs now, mud storage pool design improvement and the efficient concentration operation scheme of research and development preliminary engineering reduced investment will become the important research topic of Sewage Plant from now on, for mud in meeting < < urban wastewater treatment firm pollutant emission standard > > (GB18918-2002), dispatch from the factory under the prerequisite of index, effectively reduce running cost, improve social benefit, environmental benefit and economic benefit have important practical significance.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and the mud storage pool that a kind of mud concentrated effect is good, dewatering efficiency is high is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of mud storage pool, comprise mud storage pool body, enter mud pipe and rising pipe, described mud storage pool body bottom is provided with mud mouth, describedly enter mud pipe and rising pipe all extends to mud storage pool body top from mud storage pool body bottom, describedly enter mud pipe upper end and be connected with along the horizontally disposed branch of mud storage pool inner body wall and enter mud perforation floral tube, described rising pipe upper end is connected with fixedly strains water pipe, and the described water pipe of fixedly straining enters mud perforation floral tube higher than described branch.
Further improvement as technique scheme:
On described rising pipe, be connected with and can in perpendicular, rotate around tie point the activity of adjusting and strain water pipe.
Described activity is strained the tie point of water pipe and rising pipe lower than the described tie point of fixedly straining water pipe and rising pipe, and described activity is strained water pipe end and is provided with activity and strains the mouth of a river, described activity strain the mouth of a river while being positioned at vertex greater than or equal to the height of fixedly straining water pipe.
Described activity is strained on water pipe and is connected with and extends to mud storage pool body rotating operation bar in addition.
Described branch is entered mud perforation floral tube and on tube wall, is evenly offered a plurality of mudholes.
The described water pipe of fixedly straining offers strip overflow port vertically.
Compared with prior art, the utility model has the advantage of:
Mud storage pool of the present utility model, enters mud pipe and extends to mud storage pool body top, can reduce the impact to sludge settling system into mud; Branch is entered mud perforation floral tube can be dispersed by the mud of input, thereby the impact causing while reducing filling mud is conducive to accelerate sludge settling; Branch is entered mud perforation floral tube and is horizontally disposed with along mud storage pool inner body wall, at the bottom of the mud of filling will flow to pond along mud storage pool inner body wall, thereby further reduce the impact that filling mud causes, avoid the mud of sedimentation to be risen, improve sludge settling effect in mud storage pool; Mud storage pool of the present utility model is simple in structure, with low cost, by above-mentioned texture improvement, greatly reduce the impact of filling mud to sedimentation mud in pond, for realizing the mud concentration technology, reduction moisture percentage in sewage sludge and the raising sludge concentration that circulate into mud-precipitation, provide niche plinth.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model mud storage pool.
Fig. 2 is the movable structure for amplifying schematic diagram at the mouth of a river of straining in the utility model mud storage pool.
Fig. 3 is that the D of Fig. 2 is to view.
Fig. 4 is the partial enlarged drawing that in the utility model mud storage pool, branch is entered mud perforation floral tube.
Fig. 5 is the A-A sectional drawing of Fig. 4.
Fig. 6 fixedly strains the partial enlarged drawing of water pipe in the utility model mud storage pool.
Fig. 7 is the B-B sectional drawing of Fig. 6.
Fig. 8 is the schema of the utility model mud concentration technology.
In figure, each label represents:
1, mud storage pool body; 11, mud mouth; 2, enter mud pipe; 3, rising pipe; 4, fixedly strain water pipe; 41, strip overflow port; 5, branch is entered mud perforation floral tube; 51, mudhole; 6, water pipe is strained in activity; 61, the mouth of a river is strained in activity; 62, rotating operation bar.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model is further described.
Fig. 1 to Fig. 7 shows a kind of mud storage pool embodiment of the present utility model, this mud storage pool comprises mud storage pool body 1, enter mud pipe 2 and rising pipe 3, mud storage pool body 1 bottom is provided with mud mouth 11, enter mud pipe 2 and rising pipe 3 and all from mud storage pool body 1 bottom, extend to mud storage pool body 1 top, entering mud pipe 2 upper ends is connected with along the horizontally disposed branch of mud storage pool body 1 inwall and enters mud perforation floral tube 5, rising pipe 3 upper ends are connected with and fixedly strain water pipe 4, fixedly strain water pipe 4 and enter mud perforation floral tube 5 higher than branch, the discrepancy in elevation is 400mm-500mm, enter mud pipe 2 and extend to mud storage pool body 1 top, can reduce into mud to pond at the bottom of the stirring of settled sludge, reduce the precipitation waiting time, branch is entered mud perforation floral tube 5 can be dispersed by the mud of input, thereby the water impact causing while reducing filling mud is conducive to sludge settling, branch is entered mud perforation floral tube 5 and is horizontally disposed with along mud storage pool body 1 inwall, at the bottom of the mud of filling will flow to pond along mud storage pool body 1 inwall, thereby further reduce the impact that filling mud causes, avoid the mud of sedimentation to be risen, improve sludge settling effect in mud storage pool, mud storage pool of the present utility model is simple in structure, with low cost, by above-mentioned texture improvement, greatly reduce the impact of filling mud to sedimentation mud in pond, for realizing the mud concentration technology, reduction moisture percentage in sewage sludge and the raising sludge concentration that circulate into mud-precipitation, provide niche plinth.
In the present embodiment, on rising pipe 3, be connected with and can in perpendicular, rotate around tie point the activity of adjusting and strain water pipe 6, activity is strained the tie point of water pipe 6 and rising pipe 3 lower than fixedly straining the tie point of water pipe 4 with rising pipe 3, activity is strained water pipe 6 ends and is provided with activity and strains the mouth of a river 61, activity strain the mouth of a river 61 while being positioned at vertex greater than or equal to the height of fixedly straining water pipe 4, activity is strained and on water pipe 6, is connected with the rotating operation bar 62 extending to beyond mud storage pool body 1.By rotating operation bar 62, can rotation activity strain water pipe 6, the height that makes activity strain the mouth of a river 61 is made adjustment, thereby can water level be collected and be discharged lower than the supernatant liquor of fixedly straining water pipe 4, further improves sludge concentration; And easy row convenient and simple for operation, can reduce operator's labour intensity.
In the present embodiment, branch is entered mud perforation floral tube 5 and on tube wall, is evenly offered a plurality of mudholes 51, mudhole 51 is close to pool wall down, adopt a plurality of mudhole 51 mud extractions, can play the effect that disperses mud extraction, reduces water impact, improve into mud speed on the one hand, save consuming time into bricklayer's's order, impact in the time of can reducing on the other hand into mud, saves the consuming time of precipitation operation.Fixedly strain water pipe 4 and offer vertically strip overflow port 41, strip overflow port 41 can be accelerated the collection of supernatant liquor, and can play the effect that disperses to strain water slug.
Fig. 8 shows the schema of the utility model mud concentration technology, and this mud concentration technology is realized based on above-mentioned mud storage pool, and it comprises the following steps:
1) enter mud;
2) precipitation;
3) discharge thickened sludge,
In a mud concentrates the cycle, repeatedly circulation step 1) and step 2), often complete step 1) and step 2 one time) be a stage, when proceeding to certain stage step 2) time, if mud layer is less than 400mm apart from liquid level, the next stage is the final stage circulating, final stage in circulation, completing steps 2) after, carry out step 3), when carrying out the step 1) in each stage, adopt branch to enter mud and bore a hole floral tube 5 along mud storage pool body 1 periphery input mud, the supernatant liquor that precipitation produces is collected by rising pipe 3 discharges by fixedly straining water pipe 4.Adopt branch to enter mud perforation floral tube 5 along mud storage pool body 1 periphery input mud, can increase mud extraction sectional area, reduce the water impact load to sludge settling into mud, be more conducive to effective sedimentation of mud; From traditional continous way turnover mud, become circular gap turnover mud, make per stage enter mud and can obtain effective sedimentation at precipitate phase, progressively improve sludge concentration in mud storage pool, and then reduce moisture percentage in sewage sludge to 95%-97%, effectively improve sludge concentration to more than 30000mg/L, and then improve the working efficiency of follow-up device for dehydrating sladge waste, energy consumption cost and the dehydrated sludge water ratio of reduction sludge dewatering.
A general minute 5-7 stage of circulation carries out, and in the first step 1) time length in stage of circulation, is 100-120 minute, and the second stage of self-circulation is to final stage, and the step 1) time length is 10-90 minute; The first stage of self-circulation is to the penultimate stage, step 2) time length is 85-120 minute, final stage in circulation, step 2) time length is 40-60 minute, final stage in circulation carried out step 2) after, by adjusting activity, strain water pipe 6 and collect discharge and fixedly strain the supernatant liquor of water pipe below 4.In the process of discharge thickened sludge, can open stirring simultaneously, mud is fully mixed, be beneficial to mud and evenly discharge.
Add up to into the ratio of mud time and sedimentation time and generally need be controlled at 0.5 left and right, total run time general control, between 12-18 hour, can appropriately adjust according to sludge concentration in pond and sludge quality.
Below for useful volume is 25m
3the mud storage pool of above-described embodiment adopt two kinds of embodiment of present method lignin-sludge, two kinds of embodiment all adopt six cycles stage, the lasting duration in each stage, add up to duration and final mud extraction concentration in Table 1.
Table 1: operation scheme and implementation result cartogram
Last precipitation finishes and strains except after supernatant liquor by the movable water pipe of straining, and opens dehydration machine room mud spiral pump and discharges thickened sludge, and open dehydration equipment and carry out follow-up sludge dewatering.
Useful volume is 25m
3conventional mud storage pool while adopting ordinary method lignin-sludge, the about 8000-10000mg/L of mud extraction concentration, water ratio approximately 99%, has had a strong impact on the operational efficiency of follow-up sludge dewatering equipment, causes the electricity charge and medicament expense serious waste.As can be seen from Table 1, when mud storage pool of the present utility model adopts present method lignin-sludge, more than mud extraction concentration has reached 30000mg/L, the more than 3 times of conventional equipment common process have been reached, water ratio also drops to 96% left and right, greatly improve the desliming efficiency of follow-up deslimer, reduce the working time of sludge dewatering equipment and the consumption of flocculation agent, thereby reduce the energy consumption cost of sludge dewatering unit and operator's working strength.
Per stage enters the mud time and determines according to the sludge concentration of front end biochemistry pool and the mud storage pool volume of self, in mud storage pool pond, hold under certain prerequisite, if front end biochemistry pool sludge concentration is higher, each cycle to enter the mud time relatively shorter, if sludge concentration is on the low side, it is relatively long that each cycle is entered the mud time, and concrete optimal time is definite according to practical situation experiment.Cycle stage number of times judges according to the height of front end biological tank sludge concentration, if sludge concentration is high, in the situation that certain mud storage pool pond holds, cycle stage number of times can reduce relatively, if sludge concentration is low, cycle stage number of times can increase relatively, and concrete optimum step is definite according to practical situation experiment.The desliming amount of sewage work every day is relevant with the sludge concentration in biological tank, so best residual sludge pump working time in cycle and sedimentation time are not unalterable, after need groping by experiment to adjust according to practical situation, determines; Mud extraction sludge concentration after mud storage pool is concentrated is not more high better, by some follow-up supplementary experimental datas, find, excessive concentration, the operation conditions of follow-up belt mud dewatering equipment is not at one's best, and the situation when water ratio after discovery sludge dewatering can be slightly low higher than mud extraction sludge concentration, therefore mud extraction concentration need be controlled to optimum level, between 30000mg/L-40000mg/L.
Although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model.Any those of ordinary skill in the art, in the situation that not departing from technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solutions of the utility model,, all should drop in the scope of technical solutions of the utility model protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the utility model technical spirit.
Claims (6)
1. a mud storage pool, comprise mud storage pool body (1), enter mud pipe (2) and rising pipe (3), described mud storage pool body (1) bottom is provided with mud mouth (11), it is characterized in that: described in enter mud pipe (2) and rising pipe (3) and all from mud storage pool body (1) bottom, extend to mud storage pool body (1) top, describedly enter mud pipe (2) upper end and be connected with along the horizontally disposed branch of mud storage pool body (1) inwall and enter mud perforation floral tube (5), described rising pipe (3) upper end is connected with and fixedly strains water pipe (4), the described water pipe (4) of fixedly straining enters mud perforation floral tube (5) higher than described branch.
2. mud storage pool according to claim 1, is characterized in that: on described rising pipe (3), be connected with and can in perpendicular, rotate around tie point the activity of adjusting and strain water pipe (6).
3. mud storage pool according to claim 2, it is characterized in that: described activity is strained the tie point of water pipe (6) and rising pipe (3) lower than the described tie point of fixedly straining water pipe (4) and rising pipe (3), described activity is strained water pipe (6) end and is provided with activity and strains the mouth of a river (61), described activity strain the mouth of a river (61) while being positioned at vertex greater than or equal to the height of fixedly straining water pipe (4).
4. mud storage pool according to claim 2, is characterized in that: described activity is strained on water pipe (6) and is connected with and extends to mud storage pool body (1) rotating operation bar (62) in addition.
5. according to the mud storage pool described in any one in claim 1 to 4, it is characterized in that: described branch is entered mud perforation floral tube (5) and on tube wall, evenly offered a plurality of mudholes (51).
6. according to the mud storage pool described in any one in claim 1 to 4, it is characterized in that: the described water pipe (4) of fixedly straining offers strip overflow port (41) vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036803.8U CN203754575U (en) | 2014-01-21 | 2014-01-21 | Sludge storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036803.8U CN203754575U (en) | 2014-01-21 | 2014-01-21 | Sludge storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754575U true CN203754575U (en) | 2014-08-06 |
Family
ID=51249874
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036803.8U Expired - Fee Related CN203754575U (en) | 2014-01-21 | 2014-01-21 | Sludge storage tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN203754575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693840A (en) * | 2014-01-21 | 2014-04-02 | 益阳首创水务有限责任公司 | Sludge storage tank and sludge concentration process |
-
2014
- 2014-01-21 CN CN201420036803.8U patent/CN203754575U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103693840A (en) * | 2014-01-21 | 2014-04-02 | 益阳首创水务有限责任公司 | Sludge storage tank and sludge concentration process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 |