CN202643525U

CN202643525U - Sludge drying system

Info

Publication number: CN202643525U
Application number: CN2012202828751U
Authority: CN
Inventors: 宋永生
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-06-15
Filing date: 2012-06-15
Publication date: 2013-01-02
Anticipated expiration: 2022-06-15

Abstract

The utility model relates to a sludge drying system. A settlement tower is connected with a homogeneous atomization drying device through a taper pipe, through the high-speed and stable rotation of a rotor, sludge is subjected to strong reciprocating hydraulic shearing, friction, centrifugal extrusion and liquid flow impact formed in the narrow gap between a stator and the rotor and is then fully mixed with air to form vaporous air flows, the air flows circulate to and fro in a cavity and are then sprayed out from an outlet, air brings away moisture in the sludge, and the dried sludge with the water content lower than 30 percent is finally obtained. Mechanical energy and wind energy replace heat energy exchange, the production cost is reduced, and in addition, the pollution is avoided.

Description

Sludge drying system

Technical field

The utility model relates to a kind of sludge treating system, relates in particular to a kind of sludge drying system.

Background technology

How the mud of for a long time municipal sewage generation carries out harmless treatment, is everybody a great problem of puzzlement always.A large amount of pathogenic agent and heavy metal are arranged in the municipal sludge, people's healthy and living environment has been caused great harm, solve at present an above-mentioned difficult problem and mainly contain the method for burying of adding, biological decomposition method and burning method.

Adding the method for burying is many a kind of methods that adopts at present, and advantage is simple and easy to do, and shortcoming is that transportation difficulty, floor space are large, the most important thing is to solve the pollution of pathogenic agent a large amount of in the mud and heavy metal generation.

The biological decomposition method is also felt simply helpless to the heavy metal in the mud, and is subjected to season and climatic influences very large, is not desirable terms of settlement.

Burning method is the unique effective ways of present municipal sludge harmless treatment.Only have with burning method and could eliminate thoroughly and decompose pathogenic agent and heavy metal in the mud in the city, make at high temperature oxygenolysis of heavy metal, thereby reach the final purpose of harmless treatment.Although burning method is the preferred plan of harmless treatment, actually operating is got up also a lot of problems.It is relatively more difficult that sludge moisture content is down to below 30%, and present domestic mud average moisture content is 80%, international average water ratio 75%.Because municipal sludge produces in wastewater purification, its major ingredient is biomass, molecular structure is very special, the material that it is comprised of spore chain, moisture content in the spore is difficult to separate under normal circumstances, formed again the colloid form under the polyacrylamide polymerization effect, must expend a large amount of heat energy so moisture content separated, the expending generally to hold of this heat energy be can't stand.

Summary of the invention

The utility model provides a kind of sludge treating system for above-mentioned problems of the prior art, has solved the high problem of sludge treatment cost of the prior art, and pollution-free.

The technical solution of the utility model is as follows:

Sedimentation tower links to each other with the homogeneous pulp atomization drying apparatus by Taper Pipe.

Described homogeneous pulp atomization drying apparatus is, forms body skin by housing I and housing II, and an end of rotation axis passes the inside that housing II extends body skin; The inside of body skin is provided with spinner blade and stator vane, and spinner blade is fixed on the rotation axis, and stator vane is fixed on the housing I; Housing I is provided with opening for feed, and the side of body skin arranges outlet.

Described spinner blade and stator vane are crisscross arranged.

Described Taper Pipe is provided with inlet mouth.

Described sedimentation tower is, discharging hopper is set on the support, and the upper end of support arranges body of the tower, and the both sides of body of the tower arrange wind-supplying mouth, and the top of body of the tower arranges material inlet, and the upper end of body of the tower connects vapor pipe.

Advantage of the present utility model and beneficial effect are as follows:

1, treatment capacity is large, is fit to the industrialization on-line continuous and produces.

2, the processing range of viscosities is wide.

3, has the low lift transport capacity.

4, operate steadily, efficient is high.

5, without the dead angle, material very passes through working chamber, noresidue.

6, substitute thermal energy exchange with mechanical energy and wind energy, reduce production costs, and pollution-free.

Description of drawings

Fig. 1 is the utility model system architecture synoptic diagram.

Fig. 2 is the utility model homogeneous pulp atomization drying apparatus structural representation.

Fig. 3 is the utility model sedimentation tower structural representation.

Among the figure, 1, sedimentation tower, 2, Taper Pipe, 3, the homogeneous pulp atomization drying apparatus, 4, inlet mouth, 5, flange, 6, spinner blade, 7, stator vane, 9, housing I, 10, housing II, 11, rotation axis, 12, bearing housing, 13, outlet, 14, support, 15, discharging hopper, 16, body of the tower, 17, wind-supplying mouth, 18, material inlet, 19, exhaust duct.

Embodiment

Embodiment 1

Shown in Fig. 1-2, sedimentation tower 1 links to each other with homogeneous pulp atomization drying apparatus 3 by Taper Pipe 2; Taper Pipe 2 is provided with inlet mouth 4 and flange 5.Described homogeneous pulp atomization drying apparatus 3 is, forms body skin by housing I 9 and housing II 10, and an end of rotation axis 11 passes the inside that housing II extends body skin; The inside of body skin be crisscross arranged spinner blade 6 and stator vane 7, spinner blade 6 is fixed on the rotation axis 11, and stator vane 7 is fixed on the housing I; Housing I is provided with opening for feed, and the side of body skin arranges outlet 13.

Described sedimentation tower is, discharging hopper 15 is set on the support 14, and the upper end of support 14 arranges body of the tower 16, and the both sides of body of the tower 16 arrange wind-supplying mouth 17, and the top of body of the tower 16 arranges material inlet 18, and the upper end of body of the tower 16 connects vapor pipe 19.

Drying process of the present utility model comprises the steps:

Under the normal temperature, mud drops into homogeneous pulp atomization drying apparatus opening for feed;

Under the centrifugal action that the spinner blade of high speed rotating produces, opening for feed forms negative pressure, and mud is inhaled in the homogeneous pulp atomization drying apparatus cavity;

Powerful centrifugal force with mud from radially getting rid of into stator vane, between the spinner blade in the narrow gap, in centrifugal extruding, be mixed in the air after under the effect of impact chain spore of mud being smashed, the spinner blade of high speed rotating forms strong machinery and fluid power is sheared, the liquid layer friction, bump is torn, the resistance of mud itself and wall of container changes the flow direction, meanwhile under the effect of the up and down axial suction force that region trochanterica produces, form again up and down two bursts of strong turbulent flows of stirring, mud is through for several times circulation, mud is fully disperseed, homogeneous, broken, mixed aerosol is injected into Taper Pipe by homogeneous pulp atomization drying apparatus cavity outlet simultaneously;

After the atomizing of mud process homogeneous pulp atomization drying apparatus sprayed into Taper Pipe, humidity was still very large, fills into air by the Taper Pipe inlet mouth,, the ratio of weight and number that the parts by weight of the air that fills into and opening for feed drop into mud is air: mud=650:350; The air that replenishes produces spiral and drives mud and moves to sedimentation tower along tube wall, and produces certain pressure, and atomizing gas was both mixed with fresh air, and is moving in the lower air transport of the pressure of tube wall air again, directly do not rub with tube wall;

After atomizing gas entered sedimentation tower, water smoke gas waftd with air after the sodium chlorate spray de-tastes, and solid free setting is landed.The parts by weight of spray sodium chlorate and the ratio of weight and number of water smoke gas are sodium chlorate: water smoke gas=1:1000.

Embodiment 2

Described Taper Pipe fills in the air step, and the ratio of weight and number that the parts by weight of the air that fills into and opening for feed drop into mud is air: mud=500:250.Other structure and step are with embodiment 1.

Embodiment 3

Described Taper Pipe fills in the air step, and the ratio of weight and number that the parts by weight of the air that fills into and opening for feed drop into mud is air: mud=800:450.Other structure and step are with embodiment 1.

After the utility model test, moisture percentage in sewage sludge is 20-30%, becomes carbon mud, reaches the GB requirement.After dried carbon mud mixed coal burning by 30%, the test calorific value was normal, and Heavy Metals in Sludge oxidation behind the high temperature is innoxious up to standard.

Principle of work of the present utility model is that utilization machinery and aerodynamic principle smash the chain type spore in the mud, and its moisture content is overflowed, and are mixed in the air, by gas moisture content are taken away afterwards to reach the mummification purpose.The homogeneous pulp atomization drying apparatus is steadily to rotate by rotor high-speed, produce the above linear velocity of 45 meter per seconds, form high frequency, the comprehensive effectivenesses such as strong tangent to periphery speed and angle speed, mud is formed strong reciprocal fluid power shearing, friction, centrifugal extruding, liquid stream bump and air abundance and is mixed into mist flow in the rotor-stator close clearance, reciprocation cycle in cavity is then by the outlet ejection, air is taken away the moisture content in the mud, finally obtains the dewatered sludge of water ratio below 30%.

Claims

1. sludge drying system is characterized in that sedimentation tower links to each other with the homogeneous pulp atomization drying apparatus by Taper Pipe.

2. sludge drying system according to claim 1 is characterized in that described homogeneous pulp atomization drying apparatus is, forms body skin by housing I and housing II, and an end of rotation axis passes the inside that housing II extends body skin; The inside of body skin is provided with spinner blade and stator vane, and spinner blade is fixed on the rotation axis, and stator vane is fixed on the housing I; Housing I is provided with opening for feed, and the side of body skin arranges outlet.

3. sludge drying system according to claim 2 is characterized in that described spinner blade and stator vane are crisscross arranged.

4. sludge drying system according to claim 1 is characterized in that described Taper Pipe is provided with inlet mouth.

5. sludge drying system according to claim 1 is characterized in that described sedimentation tower is, arranges discharging hopper on the support, the upper end of support arranges body of the tower, the both sides of body of the tower arrange wind-supplying mouth, and the top of body of the tower arranges material inlet, and the upper end of body of the tower connects vapor pipe.