CN2426478Y

CN2426478Y - Baffle vertical pass sludge digestion device

Info

Publication number: CN2426478Y
Application number: CN00235023U
Authority: CN
Inventors: 王绍文; 王淼
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-04-11
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to a baffle vertical pass sludge digestion device which is composed of a pool body, a sludge discharge pipe, a bracket, a baffle vertical pass, a supernatant liquid outlet pipe, an overflow pipe, a marsh gas output pipe, an upper cover body and a sludge inlet pipe. The device is characterized in that the bracket is positioned in the pool body and is connected with the lower pool wall; the baffle vertical pass is positioned in the pool body, and the lower end surface of the baffle vertical pass is connected with the bracket. Because the device is provided with the baffle vertical pass in the pool body, the kinetic reaction condition is altered, the disturbance flow shearing generated when the marsh gas passes through the baffle vertical pass is strong, the device accelerates the anaerobic reaction rate and efficiency of the digestion pool, the treatment efficiency is much larger than that of the general sludge digestion pool, and the time of the sludge in the digestion pool is shortened.

Description

Folded plate type vertical passageway sludge digestion device

The utility model is to belong to Sludge Digestion equipment.

The present sludge digestion tank of using, its main drawback is that speed of reaction is slow, reaction efficiency is low; Causing above-mentioned major cause always is that rate of mass transfer in the used sludge digestion tank is low excessively, becomes the principal element that restricts its digestion reaction.Because mud overstand in equipment just needs the volume of pond body big, floor space is too much, makes its capital construction cost too high, and general mud all need stop 25-30 days in digester.

The purpose of this utility model is to propose a kind of folded plate type vertical passageway sludge digestion device.In the body of pond, set up the flap vertical passageway, be higher than conventional sludge digestion tank far away at the unit time biogas output, biogas causes that by each root passage of flap vertical passageway is upwards mobile the mud turbulent shear is bigger, the intensity of turbulent flow micro-vortex is bigger, ratio is higher, the speed of accelerate sludge digestion reaction and efficient.

The utility model by pond body 1, shore pipe 2, carriage 3, flap vertical passageway 4, supernatant liquor vent pipe 5, upflow tube 6, biogas output tube 7, upper cover body 8, advance mud pipe 9 and form, as shown in Figure 1; It is characterized in that: carriage 3 is positioned at pond body 1, and connects with the bottom pool wall, and flap vertical passageway 4 is positioned at pond body 1, and its lower surface and carriage 3 join.Wherein, said flap vertical passageway 4 can be one deck, and which floor also can be.

Principle of work of the present utility model: pond of the present utility model body 1 connects and composes with upper cover body 8, its inside can be divided into several districts: be ripe sludge district I between the bottom of carriage 3 and pond body 1, place, 4 places, flap vertical passageway above the carriage 3 is sludge digestion reaction zone II, the top place of flap vertical passageway 4 is into mud and supernatant liquid zone III, is methane accumulation district IV between the above and lid 8 of liquid level.Mud enters advancing among mud and the supernatant liquid zone III above the flap vertical passageway 4 by advancing mud pipe 9, stirred by effusive biogas in the flap vertical passageway, flow into digestion reaction district II then downwards, in each passage of flap vertical passageway, carry out digestion reaction, reacted mud flows into ripe sludge I district downwards along passage, the III of the flowing to waterborne district that produces in the reaction is discharged by supernatant liquor vent pipe 5; The biogas that produces in the reaction rises to methane accumulation district IV, flows into the biogas basin by biogas vent pipe 7, and ripe sludge is discharged by the bottom shore pipe 2 of pond body 1.When liquid level was too high in the reaction tank, water and mud were discharged by upflow tube 6, avoid the fail in compression of digester body.

The utility model compared with prior art has following advantage:

1, the minor face size of flap vertical passageway 4 each passage is much smaller than traditional digester body diameter, when its during by same biogas amount in the flap vertical passageway mud turbulent perturbation with shear much larger than the traditional sludge digester.So just in passage, produced at high proportion, high-intensity micro-vortex, their centrifugal inertia has increased the speed that the anerobe biochemical metabolite is removed around it widely, has also increased the speed for the treatment of that biochemical material replenishes to anerobe widely.

2, the surface of the passage of flap vertical passageway 4 is the attachment surface of anaerobion, cover with the anerobe microbial film above, increased biophasic quantity on the one hand widely, increased the contact surface of biophase and mud on the other hand widely, and turbulent shear is strong in passage, these biomembranous thin thickness, the rate of mass transfer height, biological activity is good.

3, because after setting up flap vertical passageway 4, speed of reaction increases greatly, therefore the unit time biogas output increases greatly, this has just increased the flow velocity of biogas by flap vertical passageway 4 greatly, add mud disturbance and turbulent shear in the major path, just more having quickened the anaerobic biological metabolite removes from anerobe, treat the speed that biological replenishes to the anerobe place, further improve biochemical reaction rate and reaction efficiency, reduce mud residence time in digester, dwindle digester volume and initial cost.

Description of drawings:

Fig. 1 is an overall structure sectional view of the present utility model;

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is the flap of the arrangement in the same way vertical passageway A-A sectional view of the utility model Fig. 1;

Fig. 4 is the incorgruous arrangement flap vertical passageway A-A sectional view of the utility model Fig. 1;

Fig. 5 is the sectional view of the utility model flap vertical passageway when which floor being.

Embodiment of the present utility model:

The utility model by pond body 1, shore pipe 2, carriage 3, flap vertical passageway 4, supernatant liquor vent pipe 5, upflow tube 6, biogas output tube 7, upper cover body 8, advance mud pipe 9 and form, as shown in Figure 1; Wherein pond body 1, shore pipe 2, supernatant liquor vent pipe 5, upflow tube 6, biogas output tube 7, upper cover body 8, advance mud pipe 9 and can be and select part for use; Flap vertical passageway 4 usefulness plastics flaps, glass reinforced plastic flap are made, and its flap can be arranged in the vertical passageway in the same way, and as Fig. 3, flap also can be the incorgruous vertical passageway that is arranged in, as Fig. 4; Can make different lengths as required, can be one deck during use, but also which floor, as Fig. 5.Carriage 3 usefulness stainless steels, mould and make grid type firmly.

With shore pipe 2, supernatant liquor vent pipe 5, advance mud pipe 9 and connect with the bottom of pond body 1, top respectively and communicate; Upflow tube 6, biogas output tube 7 communicate with upper cover body 8 connections.Carriage 3 places in the pond body 1, and connects with its underpart pool wall, and flap vertical passageway 4 places above the carriage 3 in the pond body 1, and the sealing that is connected and fixed of the upper end of upper cover body 8 and pond body 1 can be used.

Claims

1, a kind of folded plate type vertical passageway sludge digestion device, by the pond body, shore pipe, the supernatant liquor vent pipe, upflow tube, the biogas output tube, upper cover body, advancing the mud pipe forms, wherein shore pipe connects with the bottom of pond body, advance the mud pipe, the supernatant liquor vent pipe connects with the top of pond body, upper cover body connects with the upper end of pond body, the biogas output tube, upflow tube joins with the top and the periphery of upper cover body respectively, it is characterized in that: carriage (3) is positioned at pond body (1), and connect with the bottom pool wall, flap vertical passageway (4) is positioned at pond body (1), and its lower surface and carriage (3) join.

2, flap vertical passageway sludge digestion device according to claim 1, it is characterized in that: said flap vertical passageway (4) can be one deck, and which floor also can be.