CN209341779U - A kind of dedicated spray drying device of high fluidity powder - Google Patents

Abstract

The utility model discloses a kind of dedicated spray drying devices of high fluidity powder, including drying chamber and storage tank, it is connected between storage tank and drying chamber by delivery pipe, delivery pipe is equipped with spraying device, conveying tube end protrudes into drying chamber and is connected with fog-spray nozzle, exhaust outlet is equipped at the top of drying chamber, a U-tube is provided in drying chamber bottom wall and side wall, level is communicated with round tube in the middle part of U-tube, round tube setting is in dry pot sidewall, hot air pipe is communicated on U-tube, hot air pipe stretches out dry pot sidewall and is connected with air-heater, a bottom end escape pipe is equipped in the middle part of U-tube, bottom end escape pipe extends upwardly into drying chamber, U-tube both ends are respectively provided with a top escape pipe, 4 convection current escape pipes are evenly equipped on round tube, top escape pipe and convection current escape pipe horizontally extend into drying chamber；Dry pot bottom is equipped with the discharge nozzle with valve.Compared with prior art, the utility model structure is simple, and occupied space is few, at low cost, and energy consumption is few, and drying effect is good.

Description

A kind of dedicated spray drying device of high fluidity powder

Technical field

The utility model relates to drying equipment technical fields, and in particular to a kind of dedicated spray drying device of high fluidity powder.

Background technique

Povidone, a kind of pharmaceutic adjuvant is in free-flowing powder, manufacture craft be by after polymerization reaction, washing, Take washing be centrifuged after material be beaten, sieved again after slurry is spray-dried obtained by, spray drying be can not or Scarce step, and existing spray drying device volume is huge, structure is complicated, and manufacturing cost is too high, and the consumption energy is also very big, maintenance difficulty Greatly, maintenance cost is high；In addition, existing spray drying device drying is not thorough, drying effect is bad.

Utility model content

In order to overcome drawbacks described above, the utility model provides a kind of dedicated spray drying device of high fluidity powder, including dry Dry tank and storage tank are connected between the storage tank and drying chamber by delivery pipe, and the delivery pipe is equipped with spraying device, described Conveying tube end protrudes into and is connected with fog-spray nozzle at the top of drying chamber, and the drying chamber cross section is cylinder, the drying chamber Top is equipped with exhaust outlet, a U-tube is provided in the drying chamber bottom wall and side wall, level is communicated in the middle part of the U-tube Round tube, the round tube setting are communicated with hot air pipe in dry pot sidewall on the U-tube, the hot air pipe stretches out dry Dry pot sidewall is simultaneously connected with air-heater, and a bottom end escape pipe is equipped in the middle part of the U-tube, and the bottom end escape pipe extends upwardly into In drying chamber, the U-tube both ends are respectively provided with a top escape pipe, and 4 convection current escape pipes, institute are evenly equipped on the round tube It states top escape pipe and convection current escape pipe horizontally extends into drying chamber；The dry pot bottom is equipped with the discharge nozzle with valve.

Further, each escape pipe and the exhaust ports are equipped with dustproof filter film, prevent powder into such as U-shaped The case where managing, in round tube, or being discharged from exhaust ports.

Further, the input terminal of the air-heater is provided with air filter, by air filter by hot wind The air filtration that machine is pumped into, improves the purity of air-heater manufacture hot wind, and the hot wind for avoiding air-heater from being blown into contains impurity.

The beneficial effects of the utility model are: the utility model structure is simple, occupied space is few, at low cost, and energy consumption is few, and After slurry has just been atomized head atomization ejection, the Hot-blast Heating first sprayed by top escape pipe is first dried particle surface, prevents Only its bond, then by middle part when, convection current escape pipe spray convection current hot gas it is further dried, convection current hot gas can Powder down speed is reduced to make it dry more thorough to extend the powder down time；Powder particle continues to fall to bottom When, the hot gas that bottom end escape pipe sprays, which can dig powder particle, is repeated drying, further ensures that its drying effect.

Detailed description of the invention

Fig. 1 is that structural schematic diagram is cutd open in the portion of the utility model；

Fig. 2 is the schematic perspective view of U-tube and round tube in the utility model；

In figure: 1 drying chamber, 2 storage tanks, 3 delivery pipes, 4 spraying devices, 5 fog-spray nozzles, 6 exhaust outlets, 7U shape pipe, 8 is round Pipe, 9 hot air pipes, 10 air-heaters, 11 air filters, 12 bottom end escape pipes, 13 top escape pipes, 14 convection current escape pipes, 15 Dustproof filter film, 16 discharge nozzles.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition The concrete meaning of language in the present invention.

The dedicated spray drying device of a kind of high fluidity powder as depicted in figs. 1 and 2, including drying chamber 1 and storage tank 2, storage It is connected between batch can 2 and drying chamber 1 by delivery pipe 3, delivery pipe 3 is equipped with spraying device 4, and 3 end of delivery pipe is pushed up from drying chamber 1 Portion protrudes into and is connected with fog-spray nozzle 5, and 1 cross section of drying chamber is cylinder, is equipped with exhaust outlet 6,1 bottom of drying chamber at the top of drying chamber 1 A U-tube 7 is provided in wall and side wall, 7 middle part level of U-tube is communicated with round tube 8, and round tube 8 is arranged in 1 side of drying chamber In wall, hot air pipe 9 is communicated on U-tube 7, hot air pipe 9 stretches out 1 side wall of drying chamber and is connected with air-heater 10, air-heater 10 Input terminal is provided with air filter 11, is equipped with a bottom end escape pipe 12 in the middle part of U-tube 7, bottom end escape pipe 12 is stretched upwards Entering in drying chamber 1,7 both ends of U-tube are respectively provided with a top escape pipe 13,4 convection current escape pipes 14 are evenly equipped on round tube 8, Top escape pipe 13 and convection current escape pipe 14 horizontally extend into drying chamber 1, are equipped with dustproof filter at escape pipe and exhaust outlet 6 Film 15；1 bottom of drying chamber is equipped with the discharge nozzle 16 with valve.

When in use, the valve on discharge nozzle 16 is closed, and opens air-heater 10, preheating and drying first is carried out to drying chamber 1, Then the slurry in storage tank 2 is delivered at spraying device 4 by delivery pipe 3, sprays into drying from fog-spray nozzle 5 after atomization In tank 1, slurry has just been atomized after first 5 atomization sprays, first the Hot-blast Heating that is sprayed by top escape pipe 13, first to particle surface into Row drying prevents its bonding, then by middle part when, convection current escape pipe 14 spray convection current hot gas it is further done Dry, convection current hot gas can reduce powder down speed, to extend the powder down time, make it dry more thorough；Powder particle When continuing to fall to bottom, the hot gas that bottom end escape pipe 12 sprays, which can dig powder particle, is repeated drying, further true It protects its drying effect, after the completion of dry, closes air-heater 10, open the valve on discharge nozzle 16, by dry powder from discharging Pipe takes out.

The limitation that the technical solution of the utility model is not limited to the above specific embodiments, all skills according to the present utility model The technology deformation that art scheme is made, each falls within the protection scope of the utility model.

Claims (3)

1. a kind of dedicated spray drying device of high fluidity powder, which is characterized in that including drying chamber and storage tank, the storage tank with It is connected between drying chamber by delivery pipe, the delivery pipe is equipped with spraying device, and the conveying tube end is stretched at the top of drying chamber Enter and be connected with fog-spray nozzle, the drying chamber cross section is cylinder, is equipped with exhaust outlet, the drying chamber at the top of the drying chamber A U-tube is provided in bottom wall and side wall, level is communicated with round tube in the middle part of the U-tube, and the round tube setting is dry In dry pot sidewall, hot air pipe is communicated on the U-tube, the hot air pipe stretches out dry pot sidewall and is connected with air-heater, institute It states and is equipped with a bottom end escape pipe in the middle part of U-tube, the bottom end escape pipe extends upwardly into drying chamber, and the U-tube both ends are each Equipped with a top escape pipe, 4 convection current escape pipes, the top escape pipe and convection current escape pipe are evenly equipped on the round tube Horizontally extend into drying chamber；The dry pot bottom is equipped with the discharge nozzle with valve.

2. the dedicated spray drying device of a kind of high fluidity powder according to claim 1, which is characterized in that each outlet Pipe is equipped with dustproof filter film with the exhaust ports.

3. the dedicated spray drying device of a kind of high fluidity powder according to claim 1, which is characterized in that the air-heater Input terminal is provided with air filter.