CN201529458U - Sludge return type sedimentation sludge blanket filter tank - Google Patents

Abstract

The utility model relates to a sludge return type sedimentation sludge blanket filter tank, and a tank body has the further water flocculation function after flocculation reaction, the sedimentation function and the filtration function. The technical scheme is as follows: a sedimentation device which consists of inclined plate modules is arranged at the upper part, and the technical scheme is characterized in that a sludge blanket filter tank device which consists of a plurality of filter boxes is arranged at the lower part, and each filter box consists of a sludge collecting and storing box and a water inlet sludge storing box with communicated lower parts; and the lower end of an inclined wall is connected with a plurality of funnels (5), the lower part of each funnel (5) is blocked up by using a blocking-up plate (6), the blocking-up plates (6) are connected with a sludge discharge pipe (7), the lower end of the sludge discharge pipe (7) is connected with a sludge discharge dry pipe (8), the sludge discharge dry pipe (8) is connected with a sludge return pipe (16), an adjusting valve (20) and a sludge return pump (21) are arranged on the sludge return pipe (16), and the sludge return pipe is connected with a flocculation tank.

Description

Return sludge flow type metafiltration pool for precipitating sludge

Technical field: the utility model belongs to precipitation, filtering technique and the device of water treatment.

Background technology: flocculation process, depositing technology, filtering technique are to be provided with respectively in the common water treatment.The former water of dosing carries out flocculation reaction earlier in flocculation process, the little alumina blossom particles in the former water of dosing is grown up because of crash response flocculates.Enter in the sedimentation basin then and precipitate, the water of last post precipitation enters filter, filters out the granule in the water.

The utility model content:

Goal of the invention of the present utility model is to provide a kind of return sludge flow type metafiltration pool for precipitating sludge, has the flocculation function of further enhanced flocculation reaction back water in a pond body, has precipitation function and filtering function.

Technical scheme: a kind of return sludge flow type metafiltration pool for precipitating sludge, form by two parts, the settler that its top is made up of the swash plate module, it is characterized in that: its underpart is the sludge blanket metafiltration pool device, it is made up of a plurality of filter boxs, and each filter box all is to be made of the receipts mud storage mud box of bottom UNICOM and water inlet storage mud box;

The a plurality of funnels of termination (5) under the tilt-wall, the bottom of each funnel (5) all uses shutoff plate (6) to shut, shutoff plate (6) is connected with discharge pipeline (7), discharge pipeline (7) lower end and spoil disposal main (8) are connected, spoil disposal main (8) is connected with mud return line (16), control valve (20), sludge reflux pump (21) are set on the mud return line (16), and mud return line and flocculation basin are connected.

Beneficial effect:

1, its filter effect is better than traditional sand filter.This is because the function that the sand material of sand filter itself does not have connection substantially and adsorbs little alumen ustum, and the mud granule of mud slime layer to be the hydrolysate of flocculant be coupled to, very strong flocculation, absorption property are arranged.So the sludge blanket metafiltration pool interception capacity is better than the traditional tank people, this is an one.It two is that the traditional filtering method is that sedimentation basin and filter tank are provided with respectively.The little alumina blossom particles that sedimentation basin is not held back enters the filter tank and advances broken.Water enters behind the filtering layer at first to such an extent that these alumen ustum that are broken are flocculated again, promptly so-called little flocculation.Alumen ustum through little flocculation could be held back by filtering layer.The utility model combines precipitation and filtering technique, be not only and do not have the broken problem of alumen ustum, and the water after the flocculation will pass through the mud slime layer, it has strengthened flocculation greatly, and the effect of holding back of mud slime layer is better than traditional filter tank again, so its effluent quality obviously is better than traditional filter tank effluent quality.

2, because mud is back to coagulating basin, effectively improve flocculating effect, improved water quality effectively, improved the disposal ability of equipment.

3, have very strong flocculation and adsorption capacity just because of above-mentioned mud slime layer, and the adsorption capacity of returned sludge, so the utility model has tangible joint medicine function.

4, the regular spoil disposal institute's water consumption of sludge blanket metafiltration pool is suitable substantially with common sedimentation basin water loss, has saved the normal sands filter back washing water yield, and both compare the saving water yield and account for 5% of the processing water yield.

5, working stability is suitable for various difficult water quality, as the processing of low-temperature and low turbidity, low turbid high algae, high all kinds of abominable water quality such as turbid.

Description of drawings

Fig. 1 is the vertical view of sedimentation sludge blanket metafiltration pool

Fig. 2 is that sedimentation sludge blanket metafiltration pool B-B is to cutaway view

Fig. 3 is that the E-E of sedimentation sludge blanket metafiltration pool is to cutaway view

Fig. 4 is that the C-C of sedimentation sludge blanket metafiltration pool is to cutaway view

Fig. 5 is that the D-D of sedimentation sludge blanket metafiltration pool is to cutaway view

The specific embodiment:

When this system brings into operation, the water after the flocculation that flows into from the perforation tracery wall 15 of sludge blanket metafiltration pool via water inlet storage mud box II, receive mud storage mud box I and enter inclined plate sedimentation device 18.Sludge settling is slipped on sloping plate unit to be received in the mud storage mud box I, and continues to drop to the bottom of funnel 5.Along with the lengthening of running time, funnel 5, receipts mud storage mud box I, water inlet storage mud box II bottom are full of formation mud slime layer by mud.Water after the flocculation that newly enters is by this layer.The alumen ustum that these mud are all linked up by flocculation is formed, and has very strong connection and adsorption capacity.When current flow through this layer, some little alumen ustum were adsorbed in the current, and also because of growing up with flood mud particle collision, its settling velocity obviously increases the alumen ustum that is not adsorbed, so when flowing through inclined plate sedimentation device 18, precipitating sludge quantity increases, effluent quality is become better and better.Water inlet storage mud box II is high more with the mud slime layer degree of depth of receiving among the mud storage mud box I, and mud slime layer packing is big more, and the flow through length of slime layer of its current is big more, and the mud slime layer is strong more to alumen ustum interception capacity in the water.When the mud slime layer reached certain depth, the alumen ustum in the water was held back by the mud slime layer substantially.Reached filter tank water outlet level from the water quality of sludge silt laminar flow water outlet, because mud is held back by the mud slime layer substantially in the water, inclined plate sedimentation device 18 is ineffective.The mud slime layer degree of depth is increasing, and effluent quality is become better and better.But its resistance is also increasing, and water inlet storage mud box II is big more with the sludge slurry face difference in height of receiving mud storage mud box I.When reaching certain value, this difference in height just starts spoil disposal mechanism automatically.Promptly open the electric butterfly valve 22 of spoil disposal main 13 automatically, drained at receipts mud storage mud box I, the mud of spoil disposal main more than 13.Automatic-closing valve 22 then, and mud slime layer filtration work is proceeded.The state of above-mentioned spoil disposal process mud slime layer is not affected, so effluent quality can not be subjected to the influence of spoil disposal process.The mud of receiving among the mud storage mud box I by repeatedly such spoil disposal thoroughly is updated.Can prevent thoroughly that the mud corruption in the mud body refuse from taking place.

, should be opened to control valve 20 certain aperture and start sludge reflux pump 21 after very short a period of time at opening of device.Being deposited in the mud that concentration is bigger in the funnel 5 then is transported in the coagulating basin under the not broken situation of alumen ustum.Improve the quantity of alumen ustum in the flocculation basin, increased collision probability greatly, effectively improved reaction effect.Improve its disposal ability.

Vertically wall 1, tilt-wall 2, sloping baffle 3, vertical baffle 4 are to be made by armored concrete or steel plate.Vertically wall 1 lower end and tilt-wall 2 are joined, and their two ends and pond body wall face join.Sloping baffle 3 lower ends and vertical baffle 4 join, and their two ends and pond body wall face join.Sloping baffle 3 tops of two adjacent filter boxs join.Prevent that its underpart water from entering pond body 10.Bottom vertical baffle 4 leaves certain distance to the bottom of tilt-wall 2, makes to receive mud storage mud box I and advance mud and store mud box II bottom and be communicated with.The top that tilt-wall 2 bottoms connect a plurality of funnel 5. adjacent funnels 5 joins, and funnel 5 tops and the pond body wall face of avris join.Prevent that the water in the filter box from being flowed in the pond body 10 by these parts.Funnel 5 is that armored concrete or steel plate are made, and shut with shutoff plate 6 at the end of funnel 5, and shutoff plate 6 is connected with discharge pipeline 7.Discharge pipeline 7 lower ends and spoil disposal main 8 are connected.Spoil disposal main 8 is connected with mud return line 16.Shutoff plate 6 is made by armored concrete or steel plate.Spoil disposal main 8 is with mud return line 16 and selects part for use.Control valve 20, sludge reflux pump 21 are set on the mud return line 16 and connect with flocculation basin.In receiving mud storage mud box I spoil disposal main 13 is set, connection perforated sludge discharge pipe 14, spoil disposal main 13, one ends are supported on the body wall face of pond on it, and an end passes through pond body wall face, and valve 22 is set thereon.Spoil disposal main 13 all is plastic tubes with perforated sludge discharge pipe 14.Valve 22 is to select part for use.

Claims (3)

1. return sludge flow type metafiltration pool for precipitating sludge, form by two parts, the settler that its top is made up of the swash plate module, it is characterized in that: its underpart is the sludge blanket metafiltration pool device, it is made up of a plurality of filter boxs, and each filter box all is to be made of the receipts mud storage mud box of bottom UNICOM and water inlet storage mud box;

Filter box is the casing that is joined and constituted by vertical wall, tilt-wall, two ends body of wall wall, and by sloping baffle (3), vertical baffle (4) filter box is divided into receipts mud storage mud box, water inlet storage mud box two parts, and is communicated with in its underpart;

The a plurality of funnels of termination (5) under the tilt-wall, the bottom of each funnel (5) all uses shutoff plate (6) to shut, shutoff plate (6) is connected with discharge pipeline (7), discharge pipeline (7) lower end and spoil disposal main (8) are connected, spoil disposal main (8) is connected with mud return line (16), control valve (20), sludge reflux pump (21) are set on the mud return line (16), and mud return line and flocculation basin are connected.

2. a kind of return sludge flow type metafiltration pool for precipitating sludge according to claim 1 is characterized in that: receive in the mud storage mud box (I) and establish perforated sludge discharge pipe (14), perforated sludge discharge pipe (14) is connected with spoil disposal main (13), and spoil disposal main (13) connects valve (22).

3. a kind of return sludge flow type metafiltration pool for precipitating sludge according to claim 1 is characterized in that: establish in the bottom of precipitation blanket metafiltration pool pond body (10) and scrape mud equipment (9), and establish sludge hopper (12) and perforated sludge discharge pipe (11).

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