Automatic back-washing effluent filter
Technical field
The utility model relates to a kind of filter, relates in particular to a kind of automatic back-washing effluent filter.
Background technology
Effluent filter for a long time adopts the frequent method of changing filter bag, thereby makes filter steady operation.But can make like this equipment use and management cost increase, be difficult to the production technology of the large-scale water consumption type of adaptation enterprise simultaneously.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of automatic back-washing effluent filter.
For achieving the above object, a kind of automatic back-washing effluent filter described in the utility model, comprises shell body, at described shell body internal upper part, one dividing plate is set, and the space that this dividing plate top forms is water purification space; Multiple holes are set on described dividing plate, and each hole below all arranges a filter bag device; In described shell body bottom, one sewage import is set; Described shell body lower end is provided with Yi Dikou, below this end mouth, a sludge treatment equipment is set, and the sludge outlet of this sludge treatment equipment connects a sludge pump by pipeline; The clear water output of this sludge treatment equipment connects a clarified water pump by pipeline, and this clarified water pump arrives described water purification space by pipeline connection; The top in described water purification space is provided with pure water inlet.
Preferably, described filter bag device is made up of interior filter bag and the outer filter bag that is wrapped in this interior filter bag outside, and wherein, described interior filter bag is conical, and its top upwards; Described outer filter bag is cylindrical shape, and its top is communicated with described hole; The bottom of its bottom and described interior filter bag in succession.
Preferably, described sludge treatment equipment comprises pair of lamina cylindrical shell, and inner core space is mud space, and the space forming between urceolus and inner core is clear water space; Described urceolus and inner core separate by filter material layer.
Preferably, described sludge outlet is arranged on inner core lower end; Described clear water output is arranged on urceolus lower end.
The beneficial effects of the utility model are:
The utility model.
The advantage of the utility model automatic back-washing effluent filter:
The filter bag that the utility model uses need not be changed for a long time, and the life-span can be used more than 1~3 year continuously.The utility model can be realized automatic pollution discharge mud, automatically anti-cleaning.Resistance is little, and energy consumption is low, can be without pump operation, and filtering accuracy is high, and the cleaning frequency is long.
Accompanying drawing explanation
Fig. 1 is the structural representation of automatic back-washing effluent filter described in the utility model embodiment.
The specific embodiment
Below in conjunction with Figure of description, the utility model is further described.
Be illustrated in figure 1 a kind of automatic back-washing effluent filter described in embodiment, comprise shell body 1, at described shell body internal upper part, one dividing plate 2 is set, the space that this dividing plate top forms is water purification space 3; Multiple holes are set on described dividing plate, and each hole below all arranges a filter bag device.Described filter bag device is made up of interior filter bag 4 and the outer filter bag 5 that is wrapped in this interior filter bag outside, and wherein, described interior filter bag is conical, and its top upwards; Described outer filter bag is cylindrical shape, and its top is communicated with described hole; The bottom of its bottom and described interior filter bag in succession.In described shell body bottom, one sewage import 6 is set; Described shell body lower end is provided with an end mouth 7, and a sludge treatment equipment 11 is set below this end mouth.Described sludge treatment equipment comprises pair of lamina cylindrical shell, and inner core space is mud space 8, and the space forming between urceolus and inner core is clear water space 9; Described urceolus and inner core separate by filter material layer 10.Described sludge outlet is arranged on inner core lower end; Described clear water output is arranged on urceolus lower end.The sludge outlet of this sludge treatment equipment connects a sludge pump 12 by pipeline, and this sludge pump can be pumped out to mud in outside mud car 15.The clear water output of this sludge treatment equipment connects a clarified water pump 13 by pipeline, and this clarified water pump arrives described water purification space by pipeline connection; The top in described water purification space is provided with pure water inlet 14.
When use, when sewage enters after filter, through some groups of filter bag devices, clear water is discharged and is recycled after being pooled in water purification space through filter bag device.Particle in sewage is blocked in the outside of filter bag device, thereby reaches the object of filtration.Due to filter bag be shaped as many pleats of spiral shape, so the conventional large manyfold of the surface area ratio filtering, therefore filtration resistance is very little, filter cake cleaning cycle is long, utilizes inner water pressure simultaneously, make filter bag mounting framework again, and the unlikely filter bag that makes is ineffective.
The utility model automatic back-washing effluent filter, is equipped with sludge treatment equipment in filter bottom, and its function one is can mud is concentrated, and the 2nd, can carry out backwash.That is: sewage is entered after filter, tank endoparticle substrate concentration increases gradually, and under Action of Gravity Field, particle deposits downwards, and the effect of clarified water pump is to accelerate to deposit and make mud concentrated, and concentrated mud granule thing is discharged through electric diaphragm pump (sludge pump).After filter quits work, sludge treatment equipment works on, and clear water, at tank body inverted running, can make the pie mud that is attached to filter medium surface come off like this, and filtering surface is cleaned, until mud emptying in tank.
Above; it is only preferred embodiment of the present utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.