CN205061839U - Mud deoiling system - Google Patents

Mud deoiling system Download PDF

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Publication number
CN205061839U
CN205061839U CN201520684226.8U CN201520684226U CN205061839U CN 205061839 U CN205061839 U CN 205061839U CN 201520684226 U CN201520684226 U CN 201520684226U CN 205061839 U CN205061839 U CN 205061839U
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China
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communicated
air supporting
reaction unit
sludge
deoiling
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CN201520684226.8U
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Inventor
张同泉
朱少华
肖敏
杨威
马晟
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Wisdri Engineering and Research Incorporation Ltd
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Wisdri Engineering and Research Incorporation Ltd
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Abstract

The utility model discloses a mud deoiling system, including agitating unit, reaction unit, middle water tank and dissolving the gas pitcher, into ni kou has been offered at agitating unit's top, and the drain has been offered to the bottom, the agitating unit lower part is through first communicating pipe and reaction unit's bottom intercommunication, the top intercommunication of reaction unit and middle water tank, and middle water tank bottom and the top intercommunication that dissolves the gas pitcher, the air supporting releaser intercommunication that dissolves the gas pitcher bottom and set up bottom in reaction unit, the air supporting releaser lies in the below that communicating pipe goes out the mud mouth, the oil drain port has been seted up at reaction unit's top, and the drain has been seted up to the bottom. The utility model discloses a dissolve gas air supporting deoiling, the some return sludge in the reaction unit get into agitating unit and degrease once more, have further reduced the oiliness in the mud and have compared, have improved the deoiling effect greatly, the utilization ratio of throwing the chemical agent that adds has been improved simultaneously, part air supporting water reflux is middle water tank cyclic utilization extremely, and the water consumption has significantly reduced.

Description

A kind of deoiling of sludge system
Technical field
The utility model relates to degreasing technique field, is specifically related to a kind of deoiling of sludge system.
Background technology
It is useless that the oily sludge (mud) produced in the industrial production belongs to danger greatly.Oily sludge refers to that crude oil or processed oil are mixed in mud or other materials.Oil content in oily sludge is difficult to reclaim, and can cause environmental pollution; Usually also containing the material such as benzene homologues, phenols in oily sludge, be attended by stench and certain toxicity, not treated direct discharge can make soil, water body and vegetation be subject to very big pollution.
At present, common mud is recycled treatment process and is mainly contained the physical chemistry treatment processs such as burning method, extraction process, pyrolysis method and solidification method.But it is high all to there is cost in above-mentioned treatment process, easily produces secondary pollution problems in treating processes.Need as adopted burning method process oily(waste)water to build special incinerator, and need consume fuel, nonrecurring cost and running cost are all higher; Extraction process just need can reach emission standard through repeatedly extracting, and the selection of extraction liquid and regeneration more difficult, current industrialization examples of many successful is few; In pyrolysis method, low temperature pyrogenation can process lightweight waste oil, but also needs build special process furnace and consume the energy, and cost is higher; Solidification method needs large-area soil as landfill yard, if there is leakage can cause secondary pollution.Therefore, be necessary to improve prior art.
Summary of the invention
Technical problem to be solved in the utility model is, for the deficiencies in the prior art, provides a kind of energy-conserving and environment-protective, running cost is low, reliability is high, the deoiling of sludge system of good separating effect.
The technical solution adopted in the utility model is: a kind of deoiling of sludge system, comprises whipping appts, reaction unit, intermediate water tank and dissolving, and the top of described whipping appts offers mud inlet, and bottom offers sewage draining exit; The bottom of whipping appts is by being communicated with the bottom of reaction unit the first communicating pipe, reaction unit is communicated with the top of intermediate water tank, the bottom of intermediate water tank is communicated with the top of dissolving, the bottom of dissolving is communicated with the air supporting reliever being arranged on reaction unit inner bottom part, and air supporting reliever is positioned at the below of communicating pipe mud mouth; The top of described reaction unit offers oil discharge outlet, and bottom offers sewage draining exit.
By such scheme, described reaction unit comprises housing, and case top offers oil discharge outlet, and described air supporting reliever is installed in bottom in housing, and the below of air supporting reliever is installed on the perforation coil pipe with external compression air communication; Region directly over air supporting reliever is air supporting reaction zone, and the region between air supporting reaction zone and housing is sludge settling district, and the top in sludge settling district is communicated with the top of whipping appts, and the bottom in sludge settling district offers sewage draining exit.
By such scheme, be installed on the perforation coil pipe be communicated with external compression air source of the gas in described housing, perforation coil pipe is positioned at the below of air supporting reliever.
By such scheme, described case top is provided with the effluent trough of the annular be communicated with intermediate water tank top, and effluent trough is communicated with the top in sludge settling district.
By such scheme, be installed on Oil and slag scraping machine in described housing, the oil outlet of Oil and slag scraping machine is communicated with the oil discharge outlet of case top.
By such scheme, described dissolving comprises top-down water distribution area, packing area and Rong Qi district, and water distribution area is installed on the water distributor be communicated with intermediate water tank, and hollow plastic glueballs filler is filled in packing area; Rong Qi district is connected with air supporting generating pump or peripheral hardware air source of the gas, and the top in Rong Qi district offers inlet mouth and emergency vent, and the bottom in Rong Qi district is communicated with air supporting reliever; The arranged outside in Rong Qi district has liquidometer.
By such scheme, the pipeline that described intermediate water tank is communicated with dissolving is provided with lift pump.
Compared with prior art, the beneficial effects of the utility model are:
1, by the combination of physical method and chemical process, fully break the stable bond state of oil molecule in oily sludge and other compositions, oil molecule after independence be combined with each other formation oil particles again, in follow-up air-dissolving air-float process, oil particles is fully separated, substantially increase separation efficiency, reduce the oil length of final sludge treatment product, to the follow-up process process of mud, recycling, and environment protection has very important meaning;
2, the partial sludge backflow in reaction unit, enters after whipping appts stirs and passes into reaction unit oil removing, reduce further on the one hand in mud containing oil ratio, substantially increase deoiling effect; On the other hand, sludge reflux, to whipping appts, improves the utilization ratio of the chemical agent added, strengthens deoiling effect, reduces the volume of relevant waste-oil scavenger;
3, the part air-float water in reaction unit is back to intermediate water tank and continues recycle, provides the air-float water needed for follow-up oil removing reaction on the one hand, greatly reduces water loss; On the other hand, the per-cent shared by the backflow water yield is the important factor affecting daf efficiency, and reaction unit is equal refluxing portion air-float water after often processing the oily sludge of certain volume, enhances the effect of follow-up oily sludge air-dissolving air-float;
4, arrange perforation coil pipe, the pressurized air that perforated coil pipe enters in reaction unit plays stirring action, prevents mud from piling up precipitation in air supporting reaction zone, affects the Effec-tive Function of air supporting reliever;
5, the equipment that relates to of the utility model is less, and one-time investment cost is low, and operation is relatively simple, and reliability is high, and running cost is low, practical.
Accompanying drawing explanation
Fig. 1 is system schematic of the present utility model.
Fig. 2 is the structural representation of reaction unit.
Fig. 3 is the structural representation of whipping appts.
Fig. 4 is the structural representation of dissolving.
Wherein: 1, whipping appts; 1-1, agitating vane; 1-2, turbulence plate; 2, reaction unit; 2-1, housing; 2-2, air supporting reliever; 2-3, air supporting reaction zone; 2-4, effluent trough; 2-5, variable valve; 2-6, Oil and slag scraping machine; 2-7, sludge settling district; 2-8, perforation coil pipe; 2-9, the second communicating pipe; 3, intermediate water tank; 4, dissolving; 4-1, water distribution area; 4-2, packing area; 4-3, Rong Qi district; 4-4, liquidometer; 5, lift pump; 6, sludge lifting pump; 7, air supporting generating pump; 8, sludge reflux variable valve; 9, the first communicating pipe.
Embodiment
In order to understand the utility model better, below in conjunction with the drawings and specific embodiments, the utility model is further described.
A kind of deoiling of sludge system as shown in Figure 1, comprise whipping appts 1, reaction unit 2, intermediate water tank 3 and dissolving 4, the top of whipping appts 1 offers mud inlet, and bottom offers sewage draining exit; The bottom of whipping appts 1 is by being communicated with the bottom of reaction unit 2 the first communicating pipe 9 (mud mouth of the first communicating pipe 9 is positioned at the bottom of reaction unit 2), mud after stirring passes into bottom in reaction unit 2 through the first communicating pipe 9 (the first communicating pipe 9 was also reaction unit feed-pipe), and the first communicating pipe 9 was provided with sludge lifting pump 6; The top of reaction unit 2 offers oil discharge outlet, the bottom of reaction unit 2 offers sewage draining exit, the top of reaction unit 2 is communicated with the top of intermediate water tank 3 (the part air-float water in reaction unit 2 is back to intermediate water tank 3 through this connecting pipe) by connecting pipe, the bottom of intermediate water tank 3 is communicated with by the top of connecting pipe with dissolving 4, this connecting pipe is provided with lift pump 5; The bottom of dissolving 4 is communicated with the air supporting reliever 2-2 being installed in bottom in reaction unit 2 by connecting pipe, the liberation port of air supporting reliever 2-2 be positioned at first communicating pipe 9 mud mouth below.
In the present embodiment, reaction unit 1 comprises housing 2-1, and housing 2-1 top offers oil discharge outlet; Described air supporting reliever 2-2 is installed in bottom in housing 2-1, the below of air supporting reliever 2-2 is provided with the perforation coil pipe 2-8 be communicated with external compression air source of the gas, and (pressurized air perforated coil pipe 2-8 enters housing 2-1, prevent mud from piling up precipitation at air supporting reaction zone 2-3, affect the Effec-tive Function of air supporting reliever 2-2); Region directly over air supporting reliever 2-2 is air supporting reaction zone 2-3; Region between air supporting reaction zone 2-3 and housing 2-1 is sludge settling district 2-7, the top of sludge settling district 2-7 is communicated with the top of whipping appts 1 (do not precipitate sludge reflux completely and again stir oil removing to whipping appts 1) through sludge reflux variable valve 8, and the bottom of sludge settling district 2-7 offers sewage draining exit (sewage draining exit uniform intervals is offered).
In the present embodiment, housing 2-1 top is provided with the effluent trough 2-4 of the annular be communicated with intermediate water tank 3 top, is provided with variable valve 2-5 in effluent trough 2-4, to adjust the water level of tank 2-4; Effluent trough 2-4 is communicated with the top of sludge settling district 2-7 by the second communicating pipe 2-9 (the second communicating pipe 2-9 is distributed in the outer wall of housing 2-1), after air supporting reaction, the bottom of sludge settling district 2-7 is mud, the air-float water spread from the air supporting reaction zone 2-3 of centre is assembled on top, part air-float water is back to intermediate water tank 3 through effluent trough 2-4, again enters housing 2-1 recycle through dissolving 4.
In the present embodiment, whipping appts 1 adopts frequency conversion drive machine to drive, and rotating speed is adjustable, and downward plug-flow stirs; The agitating vane 1-1 of whipping appts 1 is two-layer up and down, and agitating vane 1-1 staggers mutually; The inwall of whipping appts 1 is provided with turbulence plate 1-2.
In the present embodiment, dissolving 4 comprises top-down water distribution area 4-1, packing area 4-2 and Rong Qi district 4-3, water distribution area 4-1 are installed on the water distributor (accompanying drawing is not shown) be communicated with intermediate water tank 3, and packing area 4-2 fills hollow plastic glueballs filler; Rong Qi district 4-3 is communicated with air supporting generating pump 7 (Rong Qi district 4-3 also can be communicated with peripheral hardware compressed air gas source, and it provides the pressurized air of 0.5mPa), and Rong Qi district 4-3 is communicated with air-float water reliever 2-2; Rong Qi district 4-3 is provided with liquidometer 4-4.
In the utility model, pending oily sludge passes into reaction unit 2 air-dissolving air-float after entering whipping appts 1 stirring; Dissolving 4 is upper intake lower outlet type, and pressurized air is fully dissolved in water, through air supporting reliever 2-2 for the air supporting reaction in reaction unit 2 provides air-float water; Intermediate water tank 3 provides required water for dissolving 4 dissolved air, and the part air-float water in reaction unit 2 is back to intermediate water tank 3 cycling and reutilization through effluent trough 2-4; Simultaneously extraneous pressurized air also perforated coil pipe 2-8 enter in reaction unit 2, play stirring action, prevent mud to pile up precipitation at air supporting reaction zone 2-3, affect the Effec-tive Function of air supporting reliever 2-2.
The detailed process utilizing native system to carry out deoiling of sludge is: first, pending oily sludge is imported whipping appts 1, according to composition and the quality of oily sludge, suitable appropriate chemical agent is added in whipping appts 1, oil molecule and other solid-state molecular are departed from, then carry out high-speed stirring, increase the friction between solid matter in mud, make independently oil molecule be incorporated into oil particles; Then, oily sludge after fragmentation being recombinated passes in reaction unit 2, pressurized air in perforation coil pipe 2-8 enters reaction unit 2 and is dissolved into air-float water, air-float water in dissolving 4 is sent in reaction unit 2 through air supporting reliever 2-2, oily sludge is stirred again, tiny bubble in oil particles absorption steam water interface in oily sludge, floats on the surface by buoyancy, is separated with mud; Oil slick scrapes by the Oil and slag scraping machine 2-6 at reaction unit 2 top, discharges reaction unit 2 through oil discharge outlet; Mud after oil removing, after the sludge settling district 2-7 of reaction unit 2 precipitates, is discharged through sewage draining exit, and in sludge settling district 2-7, unprecipitated mud again passes into whipping appts 1 and stirs, further oil removing; Control the part air-float water of sening as an envoy in reaction unit 2 and be back to intermediate water tank 3 through effluent trough 2-4, the water of intermediate water tank 3 enters reaction unit 2 after reentering and dissolving pressurized air in dissolving 4.
In said process, return sludge ratio is 50% ~ 60%, and air-float water reflux ratio is 80% ~ 100%; The mass ratio of air-float water and oily sludge is 40% ~ 55%; The operating pressure of dissolving 4 is 0.5MPa; Air-float water gas-water ratio (being dissolved in the ratio of air supply in water and the water yield) is 0.05:1 ~ 0.08:1; The hydraulic detention time of mud in reaction unit 2 is 15 ~ 30min (hydraulic detention time is the reaction times of oily sludge in reaction unit 2 of unit mass); The rotating speed of whipping appts 1 is 110 ~ 240rpm; Chemical agent is alkali (can be NaOH), and dosage is 40 ~ 80ppm, can remove contain in mud be greater than 60% oil content; In actual production, the rotating speed of whipping appts 1, the kind of chemical agent and dosage and other correlation parameters are determined by the composition of concrete oily sludge and quality.
In the utility model, the character of the selection of separation method and the concentration of mud and character, contained grease is relevant, also cyclone separator can be selected to carry out cyclonic separation oil removing, and (cyclonic separation is the density difference utilizing solid particulate in fat particles and mud, it is made to be separated by high speed rotating), the oil slick that cyclone separator is separated can be discharged with conduit.
These are only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.

Claims (7)

1. a deoiling of sludge system, is characterized in that, comprises whipping appts, reaction unit, intermediate water tank and dissolving, and the top of described whipping appts offers mud inlet, and bottom offers sewage draining exit; The bottom of whipping appts is by being communicated with the bottom of reaction unit the first communicating pipe, reaction unit is communicated with the top of intermediate water tank, the bottom of intermediate water tank is communicated with the top of dissolving, the bottom of dissolving is communicated with the air supporting reliever being arranged on reaction unit inner bottom part, and air supporting reliever is positioned at the below of communicating pipe mud mouth; The top of described reaction unit offers oil discharge outlet, and bottom offers sewage draining exit.
2. a kind of deoiling of sludge system as claimed in claim 1, it is characterized in that, described reaction unit comprises housing, and case top offers oil discharge outlet, described air supporting reliever is installed in bottom in housing, and the below of air supporting reliever is installed on the perforation coil pipe with external compression air communication; Region directly over air supporting reliever is air supporting reaction zone, and the region between air supporting reaction zone and housing is sludge settling district, and the top in sludge settling district is communicated with the top of whipping appts, and the bottom in sludge settling district offers sewage draining exit.
3. a kind of deoiling of sludge system as shown in claim 2, is characterized in that, is installed on the perforation coil pipe be communicated with external compression air source of the gas in described housing, and perforation coil pipe is positioned at the below of air supporting reliever.
4. a kind of deoiling of sludge system as claimed in claim 2, is characterized in that, described case top is provided with the effluent trough of the annular be communicated with intermediate water tank top, and effluent trough is communicated with the top in sludge settling district.
5. a kind of deoiling of sludge system as claimed in claim 2, is characterized in that, be installed on Oil and slag scraping machine in described housing, the oil outlet of Oil and slag scraping machine is communicated with the oil discharge outlet of case top.
6. a kind of deoiling of sludge system as claimed in claim 1, it is characterized in that, described dissolving comprises top-down water distribution area, packing area and Rong Qi district, and water distribution area is installed on the water distributor be communicated with intermediate water tank, and hollow plastic glueballs filler is filled in packing area; Rong Qi district is connected with air supporting generating pump or peripheral hardware air source of the gas, and the top in Rong Qi district offers inlet mouth and emergency vent, and the bottom in Rong Qi district is communicated with air supporting reliever; The arranged outside in Rong Qi district has liquidometer.
7. a kind of deoiling of sludge system as claimed in claim 1, is characterized in that, the pipeline that described intermediate water tank is communicated with dissolving is provided with lift pump.
CN201520684226.8U 2015-09-06 2015-09-06 Mud deoiling system Active CN205061839U (en)

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Application Number Priority Date Filing Date Title
CN201520684226.8U CN205061839U (en) 2015-09-06 2015-09-06 Mud deoiling system

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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
CN105152504A (en) * 2015-09-06 2015-12-16 中冶南方工程技术有限公司 Sludge oil removal system and method
CN109111064A (en) * 2018-08-06 2019-01-01 广州博昊信息科技有限公司 A kind of processing unit of municipal sludge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105152504A (en) * 2015-09-06 2015-12-16 中冶南方工程技术有限公司 Sludge oil removal system and method
CN109111064A (en) * 2018-08-06 2019-01-01 广州博昊信息科技有限公司 A kind of processing unit of municipal sludge

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