CN209237365U - A kind of Chinese medical spray drying system - Google Patents

Abstract

The utility model discloses a kind of Chinese medical spray drying systems, belong to Chinese medicine technical field of processing equipment, it includes pressure fan, heater, drying tower, cyclone separator, air-introduced machine and atomizer, the pressure fan, heater, drying tower, cyclone separator pass sequentially through pipeline with air-introduced machine and are connected, and the nozzle of the atomizer protrudes into inside drying tower；And it is provided with air distributor at the top of the drying tower, the air distributor is located at the surface of the nozzle of atomizer, including blast pipe and cover；The cover bottom opening, and opening is gradually increased from upper to small, the blast pipe passes through the top surface of cover.The air distributor of the utility model spray drying system can make the hot-air entered in drying tower is fully dispersed to come, to dramatically increase the contact area with atomized drop, improve heat exchanger effectiveness；And has the advantages that simple structure and reasonable design, easily fabricated.

Description

A kind of Chinese medical spray drying system

Technical field

The utility model belongs to Chinese medicine technical field of processing equipment, specifically, being related to a kind of dry system of Chinese medical spray System.

Background technique

Spray drying is a kind of method that systematization technique is applied to dry materials, need to be done by mechanism Dry material is dispersed into very thin particle and hot air as mist, removes most of moisture in moment, make material In solid matter be dried to powder.This method can directly make the dry powdering of solution, emulsion or particulate preparation, can save The processes such as evaporation, crushing, are now widely used for the fields such as chemical industry, petrochemical industry, light industry, food, medicine, building materials, ceramics.

In the modernization manufacture craft of Chinese medicine, spray drying because with disengagement area it is big, drying time is short, to effectively at The characteristics of point heat damage is small, high production efficiency has been in Chinese patent medicine preparation production process at present using most common drying mode.

For example, Chinese Patent Application No. are as follows: 201220227500.5, publication date are as follows: the patent document on January 9th, 2013, Disclose medicine extract spray dryer.It includes drying cylinder, mechanical atomizer, cooling device, blow device, dedusting recycling dress It sets, feed device, heater, pressure fan, screen collector；Wherein the cylindrical lower part in drying cylinder top is in coniform, Top is equipped with mechanical atomizer, is internally provided with cooling device and blow device, and bottom connects dedusting recycling dress by pipeline It sets；The feed device is arranged outside drying cylinder, connect with mechanical atomizer；The heater passes through pipeline and drying cylinder Top connection, inlet side is equipped with pressure fan；The screen collector is equipped with water pump and is recycled by pipeline and dedusting Device connection.

For another example, Chinese Patent Application No. are as follows: 2017113374656, publication date are as follows: the patent document on April 5th, 2018, Disclosing a kind of anti-sticking wall-shaped spray dryer, including drying machine body, the drying machine body includes outer housing and inner housing, The top half of the outer housing is cylindrical structure, and the lower half portion of the outer housing is conical structure, the inner housing Identical as the structure of the outer housing, the upper end of the outer housing sets centrifugal atomizer, the centrifugal atomizer lower end export spray The bottom end on head and the top for being set to the inner housing, the inner housing connects rotating electric machine, the cylindrical structure of the inner housing Part is divided into three block layers, hot-air mouth is equidistantly set on the block layer, the hot-air mouth outer end connects hot-flow flue, described Hot-air mouth opening is connect with the side wall of the inner housing in tangential direction, the air-out direction of the hot-air mouth and the inner housing Direction of rotation is on the contrary, the lower end conical, structural feature surface of the inner housing sets cold air outlet.By the above-mentioned means, the invention energy Enough reduce the dust sticking phenomenon of drying machine inner wall.

But above two technical solution and the prior art all have a problem that, are exactly the hot-air into drying tower Disperse it is insufficient, air-flow relatively concentrate, cause hot-air and atomized drop contact area small, therefore heat exchanger effectiveness is low, dry not Sufficiently, it may result in material still to contain higher moisture and bond agglomerating, in some instances it may even be possible to which the drop for edge occur fails It is arrived with the hot air of flowing.

Summary of the invention

1, it to solve the problems, such as

For existing spray drying system enter the hot-air in drying tower dispersion it is insufficient, air-flow relatively concentrate, lead to heat Air and atomized drop contact area are small, and heat exchanger effectiveness is low, and dry insufficient problem, the utility model provides a kind of Chinese medicine Spray drying system, the air distributor of the system can make the hot-air entered in drying tower is fully dispersed to come, thus significantly Increase the contact area with atomized drop, improves heat exchanger effectiveness.

2, technical solution

To solve the above problems, the utility model adopts the following technical scheme.

A kind of Chinese medical spray drying system, including pressure fan, heater, drying tower, cyclone separator, air-introduced machine and atomization Device, the pressure fan, heater, drying tower, cyclone separator and air-introduced machine pass sequentially through pipeline and are connected, the atomizer Nozzle protrudes into inside drying tower；And it is provided with air distributor at the top of the drying tower, the air distributor is located at mist Change the surface of the nozzle of device, including blast pipe and cover；The cover bottom opening, and opening gradually increases from upper to small Greatly, the blast pipe passes through the top surface of cover.

Preferably, blast pipe bottom surface closing, side are equipped with exhaust vent.

Preferably, the cover is in horn-like or coniform.

Preferably, the cover bottom surface is closed using metal mesh or textile fabric.

Preferably, solid particle is filled between the blast pipe and cover.

Preferably, the cylinder of the drying tower includes inner casing and shell；The inner casing top half is cylindrical knot Structure, lower half portion are conical structure；The shell top half section is joined end to end by multiple circular arcs to be formed；Described is outer Shell lower half portion section is joined end to end by multiple circular arcs and is formed, and sectional area is gradually reduced.

Preferably, the air inlet of the pressure fan is connected with air filter A.

Preferably, the inlet of the atomizer by pipeline connect fluid reservoir liquid outlet, and the atomizer and High-pressure pump is provided between fluid reservoir.

Preferably, the discharge port of the cyclone separator is connected with dehumidifier, and the air inlet of the dehumidifier connects empty Air filter B.

Preferably, the cyclone separator includes two.

3, beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) air distributor of the utility model Chinese medical spray drying system is arranged cover outside blast pipe, hinders air-flow It is flowed at the top of to drying tower, avoids wind loss；And the bottom of air distributor is sealed using fine metal mesh or textile fabric After closing, the filled solid particle between cover and blast pipe makes to flow again after flowing through solid particle from the air-flow flowed out in blast pipe Air distributor bottom out can make hot-air is fully dispersed to come, flow out in all directions, to dramatically increase and atomized drop Contact area, improve heat exchanger effectiveness；

(2) the drying shell section of the utility model Chinese medical spray drying system is joined end to end by multiple circular arcs forms, Relative to traditional cylinder or conical structure, the volume between inside and outside shell is increased, makes the cold wind capacity between inside and outside shell Increase, dry inner wall of tower cooling effect is more preferable, and it is long and generate material coke to can effectively solve due to material the residence time on inner wall Change rotten phenomenon, improves spray drying and receive powder rate；

(3) the utility model Chinese medical spray drying system connects dehumidifier in the outlet of cyclone separator, so that material It is further dried；

(4) the utility model Chinese medical spray drying system structure is simple, and design is rationally, easily fabricated.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model spray drying system；

Fig. 2 is the perspective view of the drying tower of the utility model spray drying system；

Fig. 3 is the main view of the drying tower of the utility model spray drying system；

Fig. 4 is A-A sectional view in Fig. 3；

Fig. 5 is the perspective view of the air distributor of the utility model spray drying system；

Fig. 6 is the main view of the air distributor of the utility model spray drying system；

Fig. 7 is the top view of the air distributor of the utility model spray drying system；

Fig. 8 is B-B sectional view in Fig. 7.

In figure: 1, pressure fan；2, heater；3, drying tower；31, air distributor；311, blast pipe；3111, exhaust vent； 312, cover；4, cyclone separator；5, air-introduced machine；6, atomizer；7, fluid reservoir；8, high-pressure pump；9, air filter A；10, empty Air filter B；11, dehumidifier；12, receiver.

Specific embodiment

The utility model is further described below combined with specific embodiments below.

Embodiment 1

As shown in Figure 1, a kind of Chinese medical spray drying system, including pressure fan 1, heater 2, drying tower 3, cyclone separator 4, air-introduced machine 5, atomizer 6, fluid reservoir 7, high-pressure pump 8, air filter A9, air filter B10, dehumidifier 11 and receiver 12；The specific structure of each component and connection relationship are as described below:

Air filter A9, pressure fan 1, heater 2, drying tower 3, cyclone separator 4 and air-introduced machine 5 pass sequentially through pipeline It is connected；The nozzle of atomizer 6 protrudes into inside drying tower 3, and inlet is provided on atomizer 6, and inlet is connected by high-pressure pump 8 Connect the liquid outlet of fluid reservoir 7；Dehumidifier 11 is connect with the discharge port of cyclone separator 4, and is connected in the air inlet of dehumidifier 11 Air filter B10；Receiver 12 is located at 4 lower section of cyclone separator, for collecting the material after drying.

It is of particular importance that being provided with air distributor 31 at the top of drying tower 3, air distributor 31 is located at atomizer 6 The surface of nozzle, as shown in Fig. 5 to Fig. 8, including blast pipe 311 and cover 312；Cover 312 is in horn-like, bottom surface use gold Belong to net closing；Blast pipe 311 passes through the top surface of cover 312, and bottom surface closing, side is equipped with exhaust vent 3111；In addition, blast pipe Solid particle is filled between 311 and cover 312.

The bottom surface of the blast pipe 311 of air distributor 31 is closed, and side opens up exhaust vent 3111, avoids hot-air from bottom It flows directly out and is extracted out and led to not atomized drop and come into full contact with by air-introduced machine 5；The bottom surface of cover 312 this is closed using metal mesh Kind permeability preferably blocks mode and then can be avoided wind loss；On the whole, this special construction of air distributor 31 make from The air-flow flowed out in blast pipe 311 first flows through the solid particle between air hose 311 and cover 312, then flows out air point again 31 bottom of orchestration, can make hot-air is fully dispersed to come, flow out in all directions, to dramatically increase the contact with atomized drop Area improves heat exchanger effectiveness.

Embodiment 2

The structure of the structure and embodiment 1 of the present embodiment Chinese medical spray drying system is essentially identical, and difference is: as schemed 2 to shown in Fig. 4, and the cylinder of drying tower 3 includes inner casing and shell；Inner casing top half is cylindrical structure, and lower half portion is circle Pyramidal structure；Shell top half section is joined end to end by multiple circular arcs and is formed, and lower half portion section is also by multiple circular arc head and the tail It is connected to form, but lower half portion sectional area is gradually reduced.

In addition, the cover 312 of air distributor 31, in coniform, cyclone separator 4 includes two be connected in series.

Identical structure is used with inner casing compared to shell in the cylinder of traditional drying tower 3, the utility model drying tower 3 Volume between cylinder inside and outside shell increases, and increases the cold wind capacity between inside and outside shell, and 3 inner wall cooling effect of drying tower is more preferable, It is long and generate the rotten phenomenon of material coking to can effectively solve due to material the residence time on inner wall, improves spray drying and receives powder Rate.

Claims (10)

1. a kind of Chinese medical spray drying system, including pressure fan (1), heater (2), drying tower (3), cyclone separator (4), draw Blower (5) and atomizer (6), the pressure fan (1), heater (2), drying tower (3), cyclone separator (4) and air-introduced machine (5) it passes sequentially through pipeline to be connected, it is internal that the nozzle of the atomizer (6) protrudes into drying tower (3)；It is characterized by: described is dry Be provided with air distributor (31) at the top of dry tower (3), the air distributor (31) be located at the nozzle of atomizer (6) just on Side, including blast pipe (311) and cover (312)；Described cover (312) bottom opening, and opening is gradually increased from upper to small, The blast pipe (311) passes through the top surface of cover (312).

2. a kind of Chinese medical spray drying system according to claim 1, it is characterised in that: described blast pipe (311) bottom Face closure, side are equipped with exhaust vent (3111).

3. a kind of Chinese medical spray drying system according to claim 2, it is characterised in that: the cover (312) is in loudspeaker Shape is coniform.

4. a kind of Chinese medical spray drying system according to claim 3, it is characterised in that: described cover (312) bottom surface It is closed using metal mesh or textile fabric.

5. a kind of Chinese medical spray drying system according to claim 4, it is characterised in that: the blast pipe (311) and Solid particle is filled between cover (312).

6. a kind of Chinese medical spray drying system according to any one of claim 1 to 5, it is characterised in that: described is dry The cylinder of dry tower (3) includes inner casing and shell；The inner casing top half is cylindrical structure, and lower half portion is cone knot Structure；The shell top half section is joined end to end by multiple circular arcs to be formed；The shell lower half portion section is by multiple Circular arc joins end to end composition, and sectional area is gradually reduced.

7. a kind of Chinese medical spray drying system according to claim 6, it is characterised in that: the air inlet of the pressure fan (1) Mouth is connected with air filter A (9).

8. a kind of Chinese medical spray drying system according to claim 7, it is characterised in that: the atomizer (6) into Liquid mouth connects the liquid outlet of fluid reservoir (7) by pipeline, and is provided with high-pressure pump between the atomizer (6) and fluid reservoir (7) (8)。

9. a kind of Chinese medical spray drying system according to claim 8, it is characterised in that: the cyclone separator (4) Discharge port be connected with dehumidifier (11), the air inlet of the dehumidifier (11) connects air filter B (10).

10. a kind of Chinese medical spray drying system according to claim 9, it is characterised in that: the cyclone separator (4) Including two.