CN201615676U - Compound heating disc-type sludge drying machine - Google Patents

Abstract

The utility model discloses a compound heating disc-type sludge drying machine. Novel improvement is conducted on the common disc-type drying machine, and the compound heating disc-type sludge drying machine is characterized in that: steam is introduced into a drying disc for conducting indirect heating (conduction) on wet sludge, and simultaneously, a flue tail gas inlet is welded at one side of the bottom part of the drying machine, and a flue tail gas outlet is welded at the other side of the top part thereof; high-temperature flue tail gas generated in combustion of a boiler is led into the inner cavity of the drying machine, so as to conduct direct heating (conduction, convection and radiation) on the wet sludge on the drying disc; by the same method, the flue tail gas is also led into the cavity of a shell sleeve, thus better insulating the whole machine; and an innovative automatic gravity control opening/closing type square hopper is adopted as a discharge hole, thus not only guaranteeing the high temperature of the inner cavity of the drying machine, but also avoiding odor generated in sludge drying from escaping towards the outside, and further protecting environment. The compound heating disc-type sludge drying machine saves energy remarkably, has high drying efficiency, well protects the environment, and is an ideal apparatus for drying sludge.

Description

Compound heating disc type sludge drying machine

Affiliated technical field

The utility model belongs to technical field of waste water processing, relates to the mummification decrement and the mummification equipment manufacturing technology of the mud that produces in the wastewater treatment.

Background technology

At present, sludge drying does not still have the mummification equipment of maturation, special use, normally adopts common drying equipment to add some upper and lower materials devices during as if the need sludge drying and carries out.Higher in the common equipment of crop drying owing to the tray drying engine efficiency, to take up an area of less be that water treatment field is selected for use usually.

Tray drier basic structure as shown in Figure 1, profile is cylindrical.The thing that is dried drops on the big basin (18) from charging aperture (15), and the motor of variable ratio frequency changer speed governing (1) drives main shaft (13) by decelerator (2) and rake arm (14) is done rotation counterclockwise; Rake leaf (17) (16) is set on the rake arm (14), with pricking hoop (12) location; Big basin (18) and little basin (20) are upper and lower being staggered; During rake arm (14) rotation, dress rake leaf (17) (16) thereon rotates simultaneously, the rake leaf (17) that is positioned on the big basin (18) makes on the little basin (20) of thing below coiling mobile falling into that be dried, being positioned at rake leaf (16) on the little basin (20) makes on the big basin of thing below outer mobile the falling into of dish that be dried, from top to bottom successively transfer, the thing that is dried after the mummification is discharged from the discharging opening (3) of bottom; The steam that comes from boiler enters into big basin inner chamber (6) by steam inlet (10), make card heating and the thing that is dried on dry (indirect type) card, this steam is also by taking over the little basin inner chamber (5) that (19) enter down one deck, from top to bottom successively pass through, at last, steam condensate (SC) is discharged from condensation-water drain (4).

Because common tray drier just makes dry card heating (conduction) and the thing that is dried on it is carried out the indirect type heat drying by steam when dried material, heat transfer efficiency has certain limitation; When particularly being used for dewatered sludge, because the water content height (80%) of mud will reach the requirement (water content is 25～35%) of mummification, the sludge drying amount is less in its certain hour; And will be in the regular hour mud of mummification higher amount, the number of plies of the necessary increase basin of making use of momentum improves the drying machine manufacturing cost; The charging and discharging mouth of common tray drier externally opens wide, and some can outwards overflow the smell that is produced when carrying out sludge drying, influences environment.

Summary of the invention

Weak point when overcoming above-mentioned common tray drier dewatered sludge, the utility model provides a kind of compound heating disc type sludge drying machine (seeing Fig. 1 for details), is characterized in energy-conservation, mummification efficient height, low cost of manufacture, does not influence environment.

The utility model is that the technical scheme that adopts that achieves the above object is: adopt steam (indirect type) and flue tail gas (direct-type) simultaneously the mud that wets to be added heat drying, be compound mode of heating; Promptly keep common tray drier with steam to wet mud indirect (conduction) mummification, install a flue gas inlet (22) additional in the bottom of desiccation machine one side in addition, install a flue tail gas outlet (11) additional at the top opposite side, the high-temperature flue tail gas that produces during with boiler combustion is incorporated into the inner chamber (7) of desiccation machine, flue tail gas directly heats (conduction+convection current+radiation) mummification to the wet mud on the basin, both waste energy utilization energy savings improve sludge drying efficient again greatly; Simultaneously install a flue gas inlet (21) additional in shell chuck bottom one side, install a flue tail gas outlet (9) additional at its top opposite side, flue tail gas is incorporated in the shell chuck cavity (8), has certain effect keeping built-in temperature to improve mummification efficient.Because the inner chamber (7) of desiccation machine has been introduced flue tail gas, the smell that produces when not making sludge drying is outwards overflowed, and just the inner chamber (7) and the external world of desiccation machine must be separated; Therefore, charging aperture (15) is directly linked to each other with wet sludge carrier pipe; Change discharging opening (3) into gravity self-controlled on-off formula square-shaped hopper by circular angle funnel and (see Fig. 2 for details, Fig. 3), its bucket body (23) is up big and down small square, sluice gate (24) is by 2 foldings (25), sunk screw (33) is connected with bucket body (23), sluice gate (24) is half-twist downwards, installing plate (27), support plate (29), side plate (26) all freezes with bucket body (23) and is connected, 2 torsion springs (30) are loaded on the pole (28), pole (28) is fixed between 2 installing plates (27) with split pin (34), 2 cylindrical sliders (31) with screw (32) be individually fixed in torsion spring (30) long-armed on, unclamp the position of screw (32) adjustable slide (31) on torsion spring (30) is long-armed, sluice gate (24) was closed when the determining of this position was satisfied with in the bucket body (23) no dewatered sludge, sluice gate (24) is opened 80～90 ° downwards when filling dewatered sludge in the bucket body (23), promptly is to control the degree that sluice gate (24) is opened automatically downwards by the weight (gravity) of the interior dewatered sludge of bucket body (23).

The beneficial effects of the utility model are: waste energy utilization, high-temperature flue tail gas in the boiler is used for direct dewatered sludge and charges into outer casing space carrying out insulation, play the effect of considerable energy saving synergy, as: with the wet sludge anhydration of water content 80% is the dewatered sludge of water content 25～35%, and the utility model day, the dewatered sludge amount was than common tray drier improve 18%; On manufacturing cost because the utility model mummification efficient height, the basin reasonable quantity can be reduced, as 10 layers change into 8 layers, 6 layers change 5 layers into, make manufacturing cost reduce; The utility model inner chamber and the external world isolate fully, and the smell when having prevented sludge drying is outwards overflowed, and do not influence environmental sanitation.

Description of drawings

Accompanying drawing is 1 page, wherein:

Fig. 1 is overall structure figure of the present utility model (structure that contains common tray drier).

Fig. 2, Fig. 3 are that discharging opening (3) is the structure chart of gravity self-controlled on-off formula square-shaped hopper.Wherein Fig. 2 is main cutaway view, and Fig. 3 is a upward view.

The specific embodiment

Agent structure and common tray drier are basic identical.

The flue gas inlet (22) that increases newly curves 90 ° with pipe, and a flange is welded in the termination, and another termination is welded on the position, hole of desiccation machine bottom one side, and material is carbon steel entirely.Flue tail gas outlet (11) is made with pipe, and a flange is welded in the termination, and another termination is welded on the position, hole of desiccation machine top opposite side, and material is carbon steel entirely.Shell chuck flue gas inlet (21) is identical with outlet (9) structure, material is carbon steel, all is to make with a pipe, and a flange is welded in the termination, inlet (21) another termination is welded in place, one side opening position, shell chuck bottom, and outlet (9) another termination is welded in another place, side opening position, shell chuck top.Why flue gas inlet and outlet being loaded on the both sides at bottom and top respectively, is for the path of the flue tail gas process that extends, and produces better mummification, heat insulation effect.In the flue tail gas after the utilization small amount of dust is arranged, separate, enter water film dedusting tower again and further purify, can not influence environment when outwards discharging by cyclone dust collectors.

Discharging opening (3) is a gravity self-controlled on-off formula square-shaped hopper (seeing Fig. 2, Fig. 3), and its bucket body (23) top is big square, and the bottom is little square, and the centre is up big and down small cubic taper, all is welded with thin corrosion resistant plate; Sluice gate (24) is a square, and size is identical with the bottom of bucket body (23), makes with thin corrosion resistant plate, is connected with bucket body (23) by 2 foldings (25), sunk screw (33), and sluice gate (24) can rotate between 0～-90 ° along the pivot of folding (25); (26) 2 of (27) 2 of installing plates, support plate (29), side plate all freeze with bucket body (23) and are connected, and all are carbon sheet, the arc end center hole of 2 installing plates (27), be after welding disposable brill system, to guarantee the concentricity in its hole; Pole (28) is loaded in the circular hole of 2 installing plates (27) with carbon steel bar car system, and its small end inserts a split pin (34), is fixed; 2 torsion springs (30), its coiling direction is opposite, also oppositely is loaded on the pole (28), its galianconism props up the inboard of support plate (29), and a cylindrical slider (31) is housed respectively on it is long-armed, prop up sluice gate (24) below; 2 cylindrical sliders (31) are made with carbon steel, be fixed on torsion spring (30) long-armed with screw (32), before fixing, adjust the position of slide block (31) about elder generation, when not having dewatered sludge in the bucket body (23), the elastic force of torsion spring (30) can be closed sluice gate (24), when filling dewatered sludge in the bucket body (23), the weight of dewatered sludge (gravity) can overcome the elastic force of torsion spring (30), makes sluice gate (24) open 80～90 ° downwards, screw screw (32) then, slide block (31) is fixing.

Claims (2)

1. a compound heating disc type sludge drying machine (Fig. 1), adopt the agent structure of common tray drier, it is characterized in that: adopt steam and flue tail gas complex method simultaneously wet mud heating to be given mummification, promptly keeping the steam heated while of common tray drier, adorn a flue gas inlet (22) at the bottom of desiccation machine one face down bonding in addition, in the flue tail gas outlet (11) that is welded of top opposite side, the high-temperature flue tail gas that produces during with boiler combustion is incorporated into the inner chamber (7) of desiccation machine, and its inlet all adopts carbon steel material with outlet; One face down bonding is adorned a flue gas inlet (21) in shell chuck bottom, in the flue tail gas outlet (9) that is welded of its top opposite side, flue tail gas is incorporated in the shell chuck cavity (8), enters the mouth and goes out gate material and be carbon steel; For the inner chamber (7) that makes desiccation machine is isolated from the outside, charging aperture (15) will directly link to each other with wet sludge carrier pipe, and discharging opening (3) is a gravity self-controlled on-off formula square-shaped hopper.

2. compound heating disc type sludge drying machine according to claim 1 is characterized in that: gravity self-controlled on-off formula square-shaped hopper (Fig. 2, Fig. 3), and its bucket body (23) is welded with the thin type corrosion resistant plate, is up big and down small square; Sluice gate (24) is made square with the thin type corrosion resistant plate, and size is identical with the bottom of bucket body (23), is connected with bucket body (23) by 2 foldings (25), sunk screw (33), and sluice gate (24) can be around the center of rotation of folding (25) half-twist downwards; 2 installing plates (27), support plate (29), 2 blocks of side plates (26) are to freeze with bucket body (23) and are connected, and material is carbon sheet; 2 torsion springs (30) are reverse coiling, oppositely are loaded on the pole (28); Pole (28) is fixed between 2 installing plates (27) with split pin (34), 2 cylindrical sliders (31) with screw (32) be individually fixed in 2 torsion springs (30) long-armed on, pole (28) and slide block (31) are carbon steel; Unclamp the position of screw (32) adjustable slide (31) on torsion spring (30) is long-armed, sluice gate (24) was closed when the determining of this position was satisfied with in the bucket body (23) no dewatered sludge, and sluice gate (24) is opened 80～90 ° downwards when filling dewatered sludge in the bucket body (23).

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