CN201195707Y - Concentrating pool for turbid return water disposal process - Google Patents
Concentrating pool for turbid return water disposal process Download PDFInfo
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- CN201195707Y CN201195707Y CNU2008200333175U CN200820033317U CN201195707Y CN 201195707 Y CN201195707 Y CN 201195707Y CN U2008200333175 U CNU2008200333175 U CN U2008200333175U CN 200820033317 U CN200820033317 U CN 200820033317U CN 201195707 Y CN201195707 Y CN 201195707Y
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- sludge
- pond body
- concentration basin
- circulating water
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Abstract
The utility model discloses a concentration tank which is used in the treatment technology of turbid circulating water and comprises a tank body (1), wherein a sludge outlet (2) is arranged on the bottom of the tank body (1), an underground gravel pump room (3) is arranged on one side of the tank body (1), a sludge pump (4) is arranged in the underground gravel pump room (3), a sludge discharge pipe (5) is arranged on an inlet of the sludge pump (4), an initial end of the sludge discharge pipe (5) is arranged on the sludge outlet (2), a draining pump (6) is arranged in the tank body (1), an output end of the draining pump (6) is connected with a return passage and a valve group (7), a sludge scraping machine (8) is arranged on the bottom of the tank body (1), and compared with the prior art, the concentration tank not only simplifies the process flow of turbid circulating water processing, but also greatly improves the dewatering efficiency of a plate filter press.
Description
Technical field
The utility model relates to the concentration basin that a kind of sewage concentration technology is used, and relates in particular to a kind of treatment process concentration basin of the turbid circulating water that produces at iron and steel metallurgy factory steel rolling.
Background technology
Iron and steel metallurgy factory steel rolling turbid circulating water refers generally to the turbid circulating water of wire rolling plants, bar factory, section bar factory and board mill.The steel rolling turbid circulating water is mainly the direct spray cooling water of rolling line equipment, contain a large amount of iron scales, wet goods impurity in the backwater after the use, at present in the turbid circulating water processing technological flow, it is modal for a mud equalizing tank is set behind the electrochemical deoiling pond, form mud equalizing tank treatment process, flow process is: chemical oil remover spoil disposal-mud equalizing tank (play and regulate and the homogeneous effect)-slag stock pump (playing pressurization)-plate-and-frame filter press (sludge dewatering).Mud is reconciled acting as of pond: will be interrupted, the electrochemical deoiling settling vessel bed mud of big volume exhaust in short-term, and through storing, regulating, all turn to mud continuous, low discharge, and deliver to plate-and-frame filter press and dewater.The defective of mud equalizing tank treatment process has: 1, the mud equalizing tank is subjected to the dark restriction in pond, the area of plane is bigger, iron scale mud granule density is big, though have mechanical stirring or pressurized air to stir, still have very thick sludge blanket accumulation to precipitate at the bottom of the pond, often need to stop Chi Qingni, increased working strength of workers, influence is produced; 2, owing to there is not the mud concentrating function, cause follow-up plate-and-frame filter press sludge dewatering efficient low, cause the processing power of plate-and-frame filter press to be difficult in the sludge discharging period sewage that oil eliminator discharged is all disposed, cause that mud accumulates gradually in the pond.
For overcoming the shortcoming of mud equalizing tank treatment process, at present usually on the basis that keeps the primary sludge equalizing tank, increase a middle-chain-sludge thickener again, form dynamically continuous mud concentration technology, concrete technical process is: chemical oil remover spoil disposal-mud equalizing tank (play and regulate and the homogeneous effect)-slag stock pump (playing pressurization)-sludge thickener (mud is carried out continuous concentration, and overflow water returns oil eliminator)-slag stock pump (playing pressurization)-plate-and-frame filter press (sludge dewatering).
The design of transformation of legacy system at present and new system mostly takes to increase this middle-chain of concentration basin, though overcome the shortcoming of mud equalizing tank treatment process, but dynamically there is following defective in the mud concentration technology continuously: 1, owing to flow and working hour between dynamic concentration basin sewage water inlet and the bottom mud discharging are difficult to adjust to suitable working order, cause concentration basin spoil disposal concentration to be difficult to bigger raising, the dewatering efficiency of plate-and-frame filter press is still lower.2, investment is higher, link is many, operation is inconvenient.
Summary of the invention
The technical problems to be solved in the utility model provides a kind ofly can simplify turbid circulating water processing technological flow and the high turbid circulating water treatment process concentration basin of thickening efficiency.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of turbid circulating water treatment process concentration basin, comprise the pond body, bottom at the pond body is provided with sludge outlet, side at the pond body is provided with underground sand pump room, underground sand pump room is connected with the pond body by underground pipe gallery, in underground sand pump room, be provided with sludge pump, be provided with shore pipe at the mud pump intake, the origin or beginning of shore pipe is located at the sludge outlet place, be provided with wet-pit at Chi Tizhong, be connected with reflux line and valve group at the draining delivery side of pump, be provided with mud scraper in the bottom of pond body, mud scraper is connected with the drive unit that is located at body top, pond by transmission shaft.
This turbid circulating water treatment process comprises at least two above-mentioned pond bodies with concentration basin, and concentration basin pond type is circle or rectangle.
Be provided with into water distributor box at the middle part of described pond body, in the water inlet distributor box, be connected with inlet channel.
Body bottom, described pond longitudinal section is V-shaped, and is provided with discharge funnel at the sludge outlet place, and the end of above-mentioned shore pipe links to each other with the lower end of discharge funnel.
On the inwall of described pond body, be provided with overflow groove, on overflow groove, be connected with upflow tube.
Compared with prior art, the utility model technology has the following advantages:
1, the utility model can be simplified the turbid circulating water processing technological flow, be reduced investment outlay.The utility model realized in same seat concentration basin to mud regulate, storage and concentrating and precipitating three big functions, technical process is simple, link is few, reduces investment outlay, easy handling is controlled; Simultaneously, shallow-layer primary water in the concentration basin of the prior art all is to flow directly into pump house cold water well, therefore formed secondary pollution to the turbid circulating water system, and in the utility model, middle part at concentration basin is provided with wet-pit, this wet-pit is used for that concentration basin pond body middle-shallow layer primary water is introduced chemical oil remover to be handled again, has so not only simplified the processing technological flow of turbid circulating water, has also effectively avoided the secondary pollution to the turbid circulating water system simultaneously; In addition, by mud scraper being set, can continuing to realize to the stirring of pool bottom sludge and scrape mud, make mud be difficult for precipitation, prevent that mud from hardening, so just can easily bottom mud be taken away, carry out next treatment process steps in pond body bottom.
2, the utility model can improve the dewatering efficiency of plate-and-frame filter press.Adopt two turbid circulating water treatment process concentration basins in the utility model, like this, in use, in a sludge discharging period, pending mud is entered in the concentration basin, to in the next sludge discharging period pending mud be drained in another concentration basin, so just having formed a concentration basin is used for static natural sedimentation and concentrates, another concentration basin is used for sludge dewatering, make in the entire treatment technology of turbid circulating water, mud is concentrated and dehydration one after the other work, static concentration time of enough mud and pressure filter sludge dewatering time have been guaranteed, increased the sludge concentration of pond body bottom, make the dewatering efficiency of plate-and-frame filter press improve greatly, realized high concentration slurry is carried out the purpose of high-level efficiency dehydration.
3, the utility model can guarantee that sewage and mud are uniformly distributed in Chi Tizhong.Owing to be provided with into water distributor box at the middle part of pond body, like this, the mud that ejects from chemical oil remover distributes through the conciliation of water inlet distributor box, can evenly drop on Chi Tizhong, like this through precipitation, make that the concentration of body bottom, concentration basin pond mud everywhere is comparatively even, avoided the phenomenon of mud, help mud scraper the mud of scraping of pond body bottom is handled at pond body bottom uneven distribution.
4, the utility model is convenient to maintenance.In the utility model, the pond body adopts skeleton construction, and pond body awl sludge outlet place, the end establishes the steel discharge funnel, and this structure makes the utility model be convenient to mud maintenance clearly.
5, the utility model can be handled the backwashing sewage water of rapid filter discharging simultaneously.In the utility model, body top, pond is provided with the water outlet overflow groove, be used for the even overflow water outlet of top primary water, major function is can static state be concentrated to be converted into dynamically by this overflow groove to concentrate, be used for compatible processing large-sized sheet material Steel Mill simultaneously through the Flow-rate adjustment homogenizing the backwashing sewage water of rapid filter discharging.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model turbid circulating water treatment process with concentration basin.
Fig. 2 is the plot plan of the utility model turbid circulating water treatment process with concentration basin.
Fig. 3 is the A-A sectional view of turbid circulating water treatment process shown in Figure 2 with concentration basin.
Fig. 4 is the B-B sectional view of turbid circulating water treatment process shown in Figure 2 with concentration basin.
Embodiment
With reference to Fig. 1 and Fig. 3, a kind of turbid circulating water treatment process concentration basin, comprise pond body 1, be provided with sludge outlet 2 in the bottom of pond body 1, side at pond body 1 is provided with underground sand pump room 3, underground sand pump room 3 is connected with pond body 1 by underground pipe gallery 18, in underground sand pump room 3, be provided with sludge pump 4, suction port at sludge pump 4 is provided with shore pipe 5, the origin or beginning of shore pipe 5 is located at sludge outlet 2 places, is provided with wet-pit 6 in pond body 1, is connected with reflux line and valve group 7 at the output terminal of wet-pit 6, be provided with mud scraper 8 in the bottom of pond body 1, mud scraper 8 is connected with the drive unit 16 that is located at pond body 1 top by transmission shaft 17; Be provided with into water distributor box 9 at the middle part of described pond body 1, be connected with inlet channel 10 in water inlet distributor box 9, inlet channel 10 is provided with into water switching valve 19; Body 1 bottom longitudinal section in described pond is V-shaped, and is provided with discharge funnel 11 at sludge outlet 2 places, and the origin or beginning of above-mentioned shore pipe 5 links to each other with the lower end of discharge funnel 11; Be provided with overflow groove 12 on the inwall of described pond body 1, (with reference to Fig. 4) is connected with upflow tube 13 on overflow groove 12, and wherein the pond type of pond body 1 is circle or rectangle.
Working process of the present utility model is as follows: the mud of at first discharging from chemical oil remover injects water inlet distributor box 9 through inlet channel 10, distributional effects by water inlet distributor box 9 makes mud be uniformly distributed in the bottom of pond body 1, after leaving standstill 4～48 hours, in pond body 1, form bottom sludge blanket 14 and shallow-layer primary water 15, at this moment with wet-pit 6 pond body 1 shallow-layer primary water 15 is at the middle and upper levels taken away in the back introducing chemical oil remover and handled again, simultaneously, mud scraper 8 passes through transmission shaft 17 under the driving effect of drive unit 16, start working, bottom mud is stirred and scrapes mud, start the sludge pump 4 in the underground sand pump room 3 simultaneously, mud is sent into plate-and-frame filter press carry out processed from shore pipe 5.
See figures.1.and.2, a kind of turbid circulating water treatment process concentration basin, comprise pond body 1, be provided with sludge outlet 2 in the bottom of pond body 1, side at pond body 1 is provided with underground sand pump room 3, underground sand pump room 3 is connected with pond body 1 by underground pipe gallery 18, in underground sand pump room 3, be provided with sludge pump 4, suction port at sludge pump 4 is provided with shore pipe 5, the origin or beginning of shore pipe 5 is located at sludge outlet 2 places, is provided with wet-pit 6 in pond body 1, is connected with reflux line and valve group 7 at the output terminal of wet-pit 6, be provided with mud scraper 8 in the bottom of pond body 1, mud scraper 8 is connected with the drive unit 16 that is located at pond body 1 top by transmission shaft 17; Be provided with into water distributor box 9 at the middle part of described pond body 1, be connected with inlet channel 10 in water inlet distributor box 9, inlet channel 10 is provided with into water switching valve 19; Body 1 bottom longitudinal section in described pond is V-shaped, and is provided with discharge funnel 11 at sludge outlet 2 places, and the origin or beginning of above-mentioned shore pipe 5 links to each other with the lower end of discharge funnel 11; Be provided with overflow groove 12 on the inwall of described pond body 1, (with reference to Fig. 4) is connected with upflow tube 13 on overflow groove 12, and wherein the pond type of pond body 1 is circle or rectangle.
In the present embodiment, this turbid circulating water treatment process comprises two above-mentioned pond bodies 1 with concentration basin, working process of the present utility model is as follows: the mud of at first discharging from chemical oil remover injects water inlet distributor box 9 through inlet channel 10, distributional effects by water inlet distributor box 9 makes mud be uniformly distributed in the bottom of pond body 1, after leaving standstill 4～48 hours, in pond body 1, form bottom sludge blanket 14 and shallow-layer primary water 15, at this moment with wet-pit 6 pond body 1 shallow-layer primary water 15 is at the middle and upper levels taken away in the back introducing chemical oil remover and handled again, simultaneously, mud scraper 8 passes through transmission shaft 17 under the driving effect of drive unit 16, start working, bottom mud is stirred and scrapes mud, start the sludge pump 4 in the underground sand pump room 3 simultaneously, the mud that scrapes off is entered plate-and-frame filter press carry out processed from shore pipe 5.Because two concentration basins are arranged, so just the mud in the sludge discharging period can be entered in the concentration basin earlier, mud is regulated in this concentration basin, storage and concentrating and precipitating, then the mud in the next sludge discharging period is entered in another concentration basin again, like this, one in two concentration basins is used for static natural sedimentation and concentrates, another seat is used for sludge dewatering simultaneously, form between two concentration basins and leave standstill the working order that concentrates with the dehydration one after the other, compare with existing turbid circulating water processing technological flow, simplified treatment process greatly.
Steel rolling engineering according to different sizes, the design useful volume of every concentration basin should satisfy the sludge discharge in sludge discharging period of whole oil eliminators at least, make in same seat pond, can regulate simultaneously, storage and concentrating and precipitating three big functions, reduce investment outlay, easy handling control is convenient to two concentration basin one after the others and is carried out concentrating of mud and dehydration.Concentration basin should have an amount of regulating power in the production, is convenient to operation.Be provided with a mud scraper at the bottom of every concentration basin pond.
What determine that the less Steel Mill's sludge discharging period of sludge quantity was generally 4～48 hours to the sludge discharging period of oil eliminator according to iron scale dewatered sludge amount in production practice, and Steel Mill's sludge discharging period that sludge quantity is big was generally 4～24 hours.Many chaptrels flow sludge discharge has once all been arranged.By the time go up after institute's sludge discharged and sewage all dispose in the sludge discharging period, can begin the spoil disposal of next sludge discharging period, working system is 1～3 class of duty between sludge dewatering.
Single seat chemical oil remover shore pipe diameter is DN150～DN350, adopts electric butterfly valve to open spoil disposal fast, and spoil disposal lasts and is controlled in 1～10 minute, and the sludge discharge of single seat chemical oil remover is about 20m
3～150m
3
Below just illustrate determining and the selection of wet-pit, sludge pump of concentration basin diameter and quantity respectively.
Concentration basin pond type is divided into circular and two kinds in rectangle.It is Φ 3m～Φ 18m that the circular concentration basin diameter of single seat is chosen scope, and peripheral pond is H=2.5m～5m deeply, and single pond useful volume is at V=30m
3～1000m
3
At first, the selection of concentration basin quantity is for the small section rolling mill engineering, and can select two diameters for use is the concentration basin of Φ 3m～Φ 9m; For medium-sized steel rolling engineering, can select two diameters for use is the concentration basin of Φ 6m～Φ 15m; For large-scale steel rolling engineering, can select two diameters for use is the concentration basin of Φ 9m～Φ 18m.
Then, selection for the wet-pit that is used to extract the shallow-layer primary water in the concentration basin is as follows: wet-pit is installed on mud liquid level separation surface top in concentration basin, shallow-layer primary water in the pond is back to oil eliminator to be handled again, the pump type can be selected vertical submerged pump for use, submersible sewage pump or major axis pump etc., pump quantity: every concentration basin is established 1～4, wherein 1～3 is used for using, another is standby, such two concentration basins are established 2～8 wet-pits altogether, can and in 0.5～3 hour, the shallow-layer primary water be exhausted to determine pumping capacity according to the big or small of concentration basin and sewage backflow amount, be convenient to leave time enough and be used for sludge dewatering.
At last, the chosen process of concentration basin sludge pump is as follows: the sludge pump pattern can adopt erosion resistant type water pumps such as slag stock pump, slush pump, spiral pump.Pump quantity: every concentration basin bottom is established 1～4, and wherein 1～3 is used for using, and another is standby, establish 2～8 sludge pumps altogether in such two concentration basins, and these sludge pumps is located at all in the underground sand pump room.The size of sludge pump flow is generally calculated definite according to the feed rate of plate-and-frame filter press.
Below be that 500,000 tons high-speed rod workshop is that example illustrates determining of each parameter and selects with yearly capacity.500,000 tons of high-speed rod workshop turbid circulating water water yields are generally 2400m
3/ h.
One) determines the chemical oil remover sludge discharge
Chemical oil remover is selected 4 for use, and 4 all are used for work, the separate unit amount of disposing of sewage: Q=600m
3/ h.Separate unit Q=600m
3The sludge discharge of the chemical oil remover of/h is about 40m
3, at this moment, the shore pipe diameter is DN200, adopts electric butterfly valve to open spoil disposal fast, spoil disposal lasts and is controlled in 5 minutes.The spoil disposal system: sludge discharging period considers once that by per 8 hours rows four chaptrel flow sludge discharges have once all been arranged.By the time go up after institute's sludge discharged and sewage all dispose in the sludge discharging period, can begin the spoil disposal of next sludge discharging period, working system is class Three's continuous duty between sludge dewatering, requires the processing power of plate-and-frame filter press in 6～7 hours the sewage sludge fully dehydrating that oil eliminator discharged in the sludge discharging period to be finished simultaneously.
Two) determine the useful volume of single seat concentration basin
The design useful volume of every concentration basin should satisfy the sludge discharge in sludge discharging period of whole oil eliminators at least, make in same seat pond, can regulate simultaneously, storage and concentrating and precipitating three big functions, easy handling control, be convenient to two concentration basin one after the others and carry out concentrating of mud and dehydration, concentration basin should have an amount of regulating power in the production, is convenient to operation.Be provided with a mud scraper at the bottom of every concentration basin pond.A Q=600m
3The oil eliminator primary sludge quantity discharged of/h is about 40m
3, the design useful volume of concentration basin should satisfy the sludge discharge of whole 4 oil eliminators, i.e. 4*40=160m at least
3
Three) determine the diameter and the quantity of concentration basin
If 2 concentration basins, concentrating of mud and dehydration are carried out in two concentration basin one after the others.Single seat concentration basin diameter is Φ 7.5m, and peripheral pond is H=4.0m deeply, and useful volume is V=180m
3
Four) definite and selection wet-pit
Wet-pit 6 is installed on mud liquid level separation surface top in concentration basin, shallow-layer primary water in the pond is back to oil eliminator handles.The pump type can be selected vertical submerged pump or submersible sewage pump for use, pump quantity: every concentration basin is established two (the using and the reserved), establishes four altogether for two, and dual-purpose two are equipped with.Single-pump flow exhausted the shallow-layer primary water to determine that the shallow-layer clarification water yield of Φ 7.5m concentration basin was about 60～130m in 1 hour
3, the single pump flow can be defined as Q=100～180m
3/ h, throw of pump H=20m, gas-distributing motor N=18.5kW.
Five) select sludge pump
Sludge pump can adopt erosion resistant type slag stock pump.Pump quantity: every concentration basin is established two (the using and the reserved), and two ponds are established four altogether, and dual-purpose two are equipped with, and are located in the underground sand pump room.The size of single-pump flow is calculated definite according to the feed rate of plate-and-frame filter press.Pressure filter sheet frame size is generally selected two kinds of 1000*1000mm and 1250*1250mm for use, and these two kinds of pressure filter can be selected the slag stock pump of same kind of model for use, can select 100/80E-HH type slag stock pump for use, single pump performance: Q=70m
3/ h, H=40m joins the N=37kW motor.
Claims (6)
1. turbid circulating water treatment process concentration basin, comprise pond body (1), be provided with sludge outlet (2) in the bottom of pond body (1), side at pond body (1) is provided with underground sand pump room (3), underground sand pump room (3) is connected with pond body (1) by underground pipe gallery (18), in underground sand pump room (3), be provided with sludge pump (4), suction port at sludge pump (4) is provided with shore pipe (5), the origin or beginning of shore pipe (5) is located at sludge outlet (2) and locates, it is characterized in that: in pond body (1), be provided with wet-pit (6), output terminal at wet-pit (6) is connected with reflux line and valve group (7), be provided with mud scraper (8) in the bottom of pond body (1), mud scraper (8) is connected with the drive unit (16) that is located at pond body (1) top by transmission shaft (17).
2. turbid circulating water treatment process concentration basin according to claim 1 is characterized in that: this turbid circulating water treatment process comprises at least two above-mentioned pond bodies (1) with concentration basin.
3. according to the turbid circulating water treatment process concentration basin of claim 1 or 2, it is characterized in that: be provided with into water distributor box (9) at the middle part of described pond body (1), be connected with inlet channel (10) in water inlet distributor box (9), inlet channel (10) is provided with into water switching valve (19).
4. turbid circulating water treatment process concentration basin according to claim 1, it is characterized in that: described pond body (1) bottom longitudinal section is V-shaped, and locate to be provided with discharge funnel (11) at sludge outlet (2), the origin or beginning of above-mentioned shore pipe (5) links to each other with the lower end of discharge funnel (11).
5. turbid circulating water treatment process concentration basin according to claim 1 and 2 is characterized in that: be provided with overflow groove (12) on the inwall of described pond body (1), be connected with upflow tube (13) on overflow groove (12).
6. turbid circulating water treatment process concentration basin according to claim 1 and 2 is characterized in that: the pond type of described pond body (1) is circle or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333175U CN201195707Y (en) | 2008-03-21 | 2008-03-21 | Concentrating pool for turbid return water disposal process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200333175U CN201195707Y (en) | 2008-03-21 | 2008-03-21 | Concentrating pool for turbid return water disposal process |
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| Publication Number | Publication Date |
|---|---|
| CN201195707Y true CN201195707Y (en) | 2009-02-18 |
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|---|---|---|---|
| CNU2008200333175U Expired - Lifetime CN201195707Y (en) | 2008-03-21 | 2008-03-21 | Concentrating pool for turbid return water disposal process |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527100A (en) * | 2011-12-02 | 2012-07-04 | 常熟市浩通市政工程有限公司 | Conical hopper type sludge concentrating equipment |
| CN102557380A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Simple sludge concentration device with baffle |
| CN102553308A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Water-mixing type cone hopper sludge concentration device |
| CN102557381A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Simple sludge concentration device |
| CN102962124A (en) * | 2012-12-05 | 2013-03-13 | 淮北重科矿山机器有限公司 | Washing device for ore desliming |
| CN103191590A (en) * | 2013-04-08 | 2013-07-10 | 云南大红山管道有限公司 | Treatment system for concentration tank of iron ore concentrates |
| CN107596780A (en) * | 2017-10-17 | 2018-01-19 | 中冶节能环保有限责任公司 | A kind of closed circuit water supply process system for slag processing |
| CN107963790A (en) * | 2016-10-20 | 2018-04-27 | 中冶节能环保有限责任公司 | A kind of method and apparatus of oily sludge desiccation volatilization harmless treatment |
| CN108465274A (en) * | 2018-04-22 | 2018-08-31 | 扬州工业职业技术学院 | A kind of sewage disposal utilization precipitation pool structure |
-
2008
- 2008-03-21 CN CNU2008200333175U patent/CN201195707Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527100A (en) * | 2011-12-02 | 2012-07-04 | 常熟市浩通市政工程有限公司 | Conical hopper type sludge concentrating equipment |
| CN102557380A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Simple sludge concentration device with baffle |
| CN102553308A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Water-mixing type cone hopper sludge concentration device |
| CN102557381A (en) * | 2011-12-02 | 2012-07-11 | 常熟市浩通市政工程有限公司 | Simple sludge concentration device |
| CN102962124A (en) * | 2012-12-05 | 2013-03-13 | 淮北重科矿山机器有限公司 | Washing device for ore desliming |
| CN102962124B (en) * | 2012-12-05 | 2014-11-19 | 淮北重科矿山机器有限公司 | Washing device for ore desliming |
| CN103191590A (en) * | 2013-04-08 | 2013-07-10 | 云南大红山管道有限公司 | Treatment system for concentration tank of iron ore concentrates |
| CN103191590B (en) * | 2013-04-08 | 2015-04-22 | 云南大红山管道有限公司 | Treatment system for concentration tank of iron ore concentrates |
| CN107963790A (en) * | 2016-10-20 | 2018-04-27 | 中冶节能环保有限责任公司 | A kind of method and apparatus of oily sludge desiccation volatilization harmless treatment |
| CN107596780A (en) * | 2017-10-17 | 2018-01-19 | 中冶节能环保有限责任公司 | A kind of closed circuit water supply process system for slag processing |
| CN108465274A (en) * | 2018-04-22 | 2018-08-31 | 扬州工业职业技术学院 | A kind of sewage disposal utilization precipitation pool structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090218 |
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