A kind of construction slurry sub-sand thickening system
Technical field
The invention belongs to filtration system field, more specifically relate to a kind of construction slurry sub-sand thickening system.
Background technology
In current building filling pile construction, there are holing with slurry wall protection bored concrete pile, spiral-digging pore bored concrete pile, Punching Borehole Cast-in-place Concrete Pile, long screw auger drilling deposited pile, dry operation stake and driven cast-in-place pile etc.And in bored concrete pile boring procedure, usually adopt mud off technology, but the process of waste mud is a difficult problem for puzzlement engineering construction always.Containing a large amount of cohesive soils, sand, gravelly soil, decayed rock, mineral and landwaste etc. in waste mud, its denseness is large, directly can not discharge, be difficult to natural subsidence again.The usable floor area in construction site own is limited, if process not in time, not only affects construction, and can cause the public hazards such as environmental pollution or water pollution.Existing processing mode be with groove tank car transport to soot, countryside by its natural mummification or shipping to river course, sea steals row.The front kind of original backwardness of processing mode, creates many problems: one be costly, efficiency is low, when construction is nervous, groove tank car transports round the clock and still can not meet construction speed requirement; Two is job site bad environments, and slime water overflows, and makes us being difficult to participate.The latter, by the constraint of geographical conditions etc., considerably increases cost of transportation.Construction brigade often causes line clogging because of the slime water sewer that bleeds and suffers significant fine, and groove tank car is also normal in transit is in addition sprinkled upon on arterial highway, city because slime water leaks and pollutes city appearance environment.
In urban construction process, as: in metro shield engineering, Tunnel Engineering, pipe-jacking project etc. work progress, this type of mud of generation is more, deals with improperly, causes the heavy damage of environment.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of construction slurry sub-sand thickening system, one can quick solution construction slurry filtration problem, so solve construction slurry disposal cost high, take effect slow and affect the construction slurry sub-sand thickening system of the problems such as working environment.
For achieving the above object, the technical solution adopted in the present invention is: a kind of construction slurry sub-sand thickening system, it is characterized in that comprising belt desanding device, the dashpot B1 of corresponding belt desanding device, the pretreatment unit connecting dashpot B1, the belt thickener dewater unit connecting pretreatment unit, the clean water recovery device connecting dashpot B1 and belt thickener dewater unit respectively, filtering band cleaning unit and control system, belt thickener dewater unit is connected with dashpot B1.
More excellent, described belt desanding device comprises strainer D1, flexible belt wheel G1, driving pulley F2, driven pulley F1, tuningout wheel L1, the rolling rake teeth group P1 being located at strainer D1 upper and lower between flexible belt wheel G1 and driving pulley F2 of adjustment strainer side-play amount, the beater H that is located at the water receiving tank E1 below rolling rake teeth group P1 and is located between driving pulley F2 and driven pulley F1, and water receiving tank E1 is connected with dashpot B1.
More excellent, described pretreatment unit comprises the elevator pump C1 connecting dashpot B1, the preprocessor A1 connecting elevator pump C1.
More excellent, described belt thickener dewater unit comprises belt thickener device and belt type dehydration device.
More excellent, described belt thickener device comprise strainer D2, flexible belt wheel G2, driving pulley F3, adjustment strainer side-play amount tuningout wheel L2, be located at strainer D2 upper and lower between flexible belt wheel G2 and driving pulley F3 slip rake teeth group P2, be located at water receiving tank E2 below slip rake teeth group P2.
More excellent, described belt type dehydration device comprises initiatively strainer device and driven strainer device, initiatively strainer device comprises strainer D3, flexible belt wheel G3, driving pulley F8, the tuningout wheel L3 of adjustment strainer side-play amount, the pinch roller H1 of driven pulley F4-F7 and Heterogeneous Permutation, H2, H3, driven strainer device comprises strainer D4, flexible belt wheel G4, the tuningout wheel L4 of adjustment strainer side-play amount, the pinch roller H1 of driven pulley F9-F11 and Heterogeneous Permutation, H2, H3, initiatively strainer device and driven strainer device are at pinch roller H1, H2, H3 place forms squeezing space, driven pulley F4 and driven pulley F9 place are squeezing space entry, belt type dehydration device also comprises the water receiving tank E3 be located at below squeezing space, water receiving tank E3 connects dashpot B1.
More excellent, described clean water recovery device comprises filtered water tank B2 and dilution pumps C3, and filtered water tank B2 connects water receiving tank E2.
More excellent, described filtering band cleaning unit comprises the scavenging pump C2 connecting filtered water tank B2, connect scavenging pump C2 and water receiving tank E6, E5, E4 of scavenge pipe N1, N2, N3 of difference corresponding strainer D2, D3, D4 and respectively corresponding scavenge pipe N1, N2, N3, water receiving tank E6, E5, E4 connect dashpot B1.
More excellent, described strainer is hair-planted type strainer.
After adopting technique scheme, its beneficial effect is: the art of this patent adopts hair-planted strip type dehydration technique, in conjunction with the modified technology of mud, carries out quick mud-water separation to mud.Moisture content of the cake after dehydration is separated is low, can be used as greening backfill soil entrucking outward transport or brickmaking etc., thus transport and the discharge fee of mud will greatly be saved, reduce the disposal cost of construction slurry, solve construction slurry disposal cost high, take effect slow and affect the construction slurry sub-sand thickening system of the problems such as working environment; And the clear liquid solid content after being separated reduces, dashpot B1 Inner eycle can be back to and use, regulate concentration of hydraulic mixture at any time, be conducive to saving water resource.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
As shown in Figure 1, a kind of construction slurry sub-sand thickening system, comprise belt desanding device, the dashpot B1 of corresponding belt desanding device, the pretreatment unit connecting dashpot B1, the belt thickener dewater unit connecting pretreatment unit, the clean water recovery device connecting dashpot B1 and belt thickener dewater unit respectively, filtering band cleaning unit and control system, belt thickener dewater unit is connected with dashpot B1.
Described belt desanding device comprises strainer D1, flexible belt wheel G1, driving pulley F2, driven pulley F1, tuningout wheel L1, the rolling rake teeth group P1 being located at strainer D1 upper and lower between flexible belt wheel G1 and driving pulley F2 of adjustment strainer side-play amount, the beater H that is located at the water receiving tank E1 below rolling rake teeth group P1 and is located between driving pulley F2 and driven pulley F1, and water receiving tank E1 is connected with dashpot B1, described pretreatment unit comprises the elevator pump C1 connecting dashpot B1, the preprocessor A1 connecting elevator pump C1, described belt thickener dewater unit comprises belt thickener device and belt type dehydration device, described belt thickener device comprise strainer D2, flexible belt wheel G2, driving pulley F3, adjustment strainer side-play amount tuningout wheel L2, be located at strainer D2 upper and lower between flexible belt wheel G2 and driving pulley F3 slip rake teeth group P2, be located at water receiving tank E2 below slip rake teeth group P2, described belt type dehydration device comprises initiatively strainer device and driven strainer device, initiatively strainer device comprises strainer D3, flexible belt wheel G3, driving pulley F8, the tuningout wheel L3 of adjustment strainer side-play amount, the pinch roller H1 of driven pulley F4-F7 and Heterogeneous Permutation, H2, H3, driven strainer device comprises strainer D4, flexible belt wheel G4, the tuningout wheel L4 of adjustment strainer side-play amount, the pinch roller H1 of driven pulley F9-F11 and Heterogeneous Permutation, H2, H3, initiatively strainer device and driven strainer device are at pinch roller H1, H2, H3 place forms squeezing space, driven pulley F4 and driven pulley F9 place are squeezing space entry, belt type dehydration device also comprises the water receiving tank E3 be located at below squeezing space, water receiving tank E3 connects dashpot B1, described clean water recovery device comprises filtered water tank B2 and dilution pumps C3, and filtered water tank B2 connects water receiving tank E2, described filtering band cleaning unit comprises the scavenging pump C2 connecting filtered water tank B2, connect scavenging pump C2 and water receiving tank E6, E5, E4 of scavenge pipe N1, N2, N3 of difference corresponding strainer D2, D3, D4 and respectively corresponding scavenge pipe N1, N2, N3, water receiving tank E6, E5, E4 connect dashpot B1, described strainer is hair-planted type strainer.
Operation principle: construction slurry enters belt desanding device, mud is injected into is located at strainer D1 place between flexible belt wheel G1 and driving pulley F2, strainer D1 does right-hand circular motion under the acting in conjunction of the tuningout wheel L1 of flexible belt wheel G1, driving pulley F2, driven pulley F1, adjustment strainer side-play amount, strainer D1 drives construction slurry motion, because construction slurry quality is larger, so adopt rolling rake teeth group P1 to reduce friction, rolling rake teeth group P1 stirs the effect that mud accelerates filter efficiency in addition.Mud after filtration is divided into more clear filtration mud and sandstone, and filter mud and enter the dashpot B1 be attached thereto through water receiving tank E1, sandstone directly reclaims, and the sandstone still sticked on strainer D1 is shaken off recovery by beater H.
Filter mud and enter dashpot B1, served as filter mud slurry too dense time, control system controls, the condensed water in clear water or cleaning case B2 is added in dashpot B1, after dilution, mud enters preprocessor A1 through elevator pump C1, in preprocessor A1, make mud be condensed into larger flocculation group to mud pretreatment, mud enters the belt thickener device in belt thickener dewater unit afterwards.
Belt thickener device utilizes belt desanding device to be similar to principle and mud is separated into filter residue compared with thickness and limpider condensed water, condensed water enters filtered water tank B2 through water receiving tank E2, filter residue enters in belt type dehydration device at pinch roller H1, H2, in the squeezing space that H3 place is formed, filter residue moves along with the motion of strainer D3 and drives strainer D4 by frictional force in squeezing space, strainer D3 and strainer D4 is at pinch roller H1, H2, H3 place produces shear extrusion power further to filter residue press filtration, press filtration is by generation squeezing sewage and mud cake, mud cake is collected from the discharge of squeezing space with the motion of strainer D3, squeezing sewage flows into water receiving tank E3 and enters dashpot B1.
Filtering band cleaning unit comprises the scavenging pump C2 connecting filtered water tank B2, connect scavenging pump C2 and water receiving tank E6, E5, E4 of scavenge pipe N1, N2, N3 of difference corresponding strainer D2, D3, D4 and respectively corresponding scavenge pipe N1, N2, N3, water receiving tank E6, E5, E4 connect dashpot B1.Scavenging pump C2 extracts the condensed water in filtered water tank B2 and through scavenge pipe N1, N2, N3 ejection respectively to strainer D2, D3, D4 cleaning, the cleaning sullage after cleaning flows into water receiving tank E6, E5, E4 respectively and enters the dashpot B1 be attached thereto.Condensed water in filtered water tank B2 can be arranged outward and can not polluted source.
Flexible belt wheel G1 ~ G4 in the present invention plays the effect of tensioning strainer, and tuningout wheel L1 ~ L4 plays the effect regulating strainer position.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.