Water scavenging tower in a kind of plural serial stage fluidized-bed
Technical field
The utility model relates to water scavenging tower in a kind of plural serial stage fluidized-bed, and the deep purifying that is used for water is handled, and belongs to water treatment field.
Background technology
The water that obtains after the treated deep purifying of municipal effluent is handled, comprise water and the building of sewage work after second-stage treatment is deepened processing again, the bathing water of living community, vegetable washing waters etc. are concentrated water after treatment, water in the general designation, contain material such as ammonia-state nitrogen can make in water utilize again and be subjected to certain limitation, particularly process water or urban afforestation water all can not be used again, present moving-bed and the fluidized-bed water purifying plant that adopts, the used water-purifying material of fluidized-bed water purifying plant is difficult to keep uniform fluidized state, the water-purifying material bed of moving-bed water purifying plant moves down the bad control of speed, and bed moves instability, the bed skewness.
But the utility model purpose just for the shortcoming that overcomes above-mentioned prior art with not enough and design water scavenging tower in the plural serial stage fluidized-bed of the ammonia-state nitrogen in the water in a kind of active adsorption, thereby water can be used for process water or urban afforestation water in making.
The purpose of this utility model realizes by following technical scheme:
Water scavenging tower in a kind of plural serial stage fluidized-bed comprises tower body 1, distributor 2, water purifying chamber 3, water distributor 4, pump 5 and sorbent material,
The water purifying chamber of plural serial stage is housed in the tower body, every grade of water purifying chamber is by last, lower housing is formed, posticum 9 is arranged on the upper housing, in the water purifying chamber, lower housing has the aperture of uniform diameter less than the sorbent material particle diameter, water purifying chamber is fixed on the tower body inwall by the supported on both sides plate, water purifying chamber's outer wall and tower body inwall leave passage 6, passage is communicated with the conical mouth of water purifying chamber bottom, and be communicated with the back taper mouth on next stage water purifying chamber top, the conical conical surface and the obconic conical surface have the aperture of uniform diameter less than the sorbent material particle diameter, and to form the cross section with the tower body inwall be trilateral baffle plate 7, water distributor is installed in the tower body bottom and is connected with pump, distributor is installed in the bell top of tower body top, and the back taper outlet of the water purifying chamber of tower body bottom one-level is connected with adsorbent reactivation device 8.
The decontamination chamber of described plural serial stage is 3~5 grades; Described sorbent material is cocoanut active charcoal or modified zeolite.
Owing to take technique scheme, make compared with the prior art following advantage of the utility model and effect:
A) water purifying chamber at different levels dismounting, assembling, maintenance is convenient, and expense is low;
B) the sorbent material translational speed is stable, fluidized state is stable, good purification.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified: water scavenging tower in a kind of plural serial stage fluidized-bed, by shown in Figure 1, comprise tower body 1, distributor 2, water purifying chamber 3, water distributor 4, pump 5 and sorbent material, the water purifying chamber of plural serial stage is housed in the tower body, every grade of water purifying chamber is by last, lower housing is formed, be convenient to dismounting, posticum 9 is arranged on the upper housing, being used for water purification discharges, in the water purifying chamber, lower housing has the aperture of uniform diameter less than the sorbent material particle diameter, prevent that sorbent material from entering water purifying chamber, water purifying chamber is fixed on the tower body inwall by the supported on both sides plate, water purifying chamber's outer wall and tower body inwall leave passage 6, it is the sorbent material passage, passage is communicated with the conical mouth of water purifying chamber bottom, and be communicated with the back taper mouth on next stage water purifying chamber top sorbent material is better contacted with middle water, the conical conical surface and the obconic conical surface have the aperture of uniform diameter less than the sorbent material particle diameter, and to form the cross section with the tower body inwall be trilateral baffle plate 7, not only porous but also can make the sorbent material uniform distribution, water distributor is installed in the tower body bottom and is connected with pump, distributor is installed in the bell top of tower body top, and the back taper outlet of the water purifying chamber of tower body bottom one-level is connected with adsorbent reactivation device 8.
The water purifying chamber of described plural serial stage is 3~5 grades; Sorbent material is cocoanut active charcoal or modified zeolite, and these two kinds of scavenging material centering water depths are handled good effect.Loading capacity is big, realizes the efficient absorption to ammonia nitrogen.
During work, pass through water distributor, under the effect of pump, make to be processed in water rise at the bottom of the tower and flow, and continuously by placed in-line one-level, secondary, three grades of water purifying chamber flow, until last step, with contact and carried out purifying treatment from the cat head water purifying chamber's peripheral channel moving phase that enters suitable for reading by distributor from the cat head sorbent material that enters suitable for reading, handle by stage purification, qualified middle water flows out by Link Port from the water purifying chamber of cat head last step, and sorbent material enters regenerating unit 8 from the one-level water purifying chamber outlet of tower body bottom when saturated and handles, according to the difference to requirements in water quality and flooding velocity flow velocity, can be chosen in different single-stage water outlets arbitrarily, as special requirement being arranged for water outlet, can install overflow device additional in the water outlet periphery, make water outlet even.
Handling ammonia-nitrogen content with the utility model is the middle water of 6mg/l, adopts three grades of series fluidized bed middle water scavenging tower, is sorbent material with modified zeolite, and water contains below the ammonia nitrogen 0.3mg/l in the processing back.Purification rate reaches 95%.