CN2706215Y

CN2706215Y - Micro spray drying machine

Info

Publication number: CN2706215Y
Application number: CN 200420040933
Authority: CN
Inventors: 吴静; 王保瑞; 王宏耀; 白明; 史勇春
Original assignee: Shandong Tianli Drying Equipment Co Ltd
Current assignee: Shandong Tianli Drying Co., Ltd.
Priority date: 2004-05-31
Filing date: 2004-05-31
Publication date: 2005-06-29
Anticipated expiration: 2014-05-31

Abstract

The utility model provides a micro spray drying machine, comprising an electric heater, a hot air allotter, a drying chamber, a peristaltic pump, a cyclone separator, a pneumatic atomizer, a gas flow indicator, a draught fan and a pedestal. The electric heater, the drying chamber, the peristaltic pump, the cyclone separator, the gas flow indicator and the draught fan are all installed on the pedestal; the electric heater, the hot air allotter, the drying chamber and the cyclone separator are connected in turn; the pneumatic atomizer is positioned on the permanent seat of the atomizer that is on the top of the hot air allotter, and the pneumatic atomizer is connected with the discharging opening of the peristaltic pump and the gas flow indicator; the pole of the atomizer passes through the central tube of the hot air allotter; the air draught opening of the draught fan is connected with the cyclone separator; the electric heater, the peristaltic pump, and the draught fan are electrically connected with a control circuit. The utility model has the compact construction, small volume, which is convenient to move and clean with good drying effect, low electric power consumption and the low raw material consumption.

Description

Mini spray dryer

(1) technical field

The utility model relates to and is used for spray-dired equipment, belongs to the drying machine technical field.

(2) background technology

At present, the domestic spray-drying experimental provision that generally uses has drying machine with centrifugal spray and Airstreamsprayingdrier.Drying machine with centrifugal spray is to utilize the centrifugal force of the atomizing disk generation of rotation at a high speed that feed liquid is ground into minimum droplet, reach dry purpose by the caloic exchange again, this kind atomization mechanism has determined that the hothouse volume of drying machine can not be too little, and its diameter is more than 800mm.Airstreamsprayingdrier adopts high pressure draught to make the feed liquid atomizing, carries out drying by the mode of caloic exchange again, and the volume of hothouse is less, and its diameter can be reduced to 500mm.The said goods all exists volume big, moves, unpicks and washes inconvenience, complete machine power configuration height, and it is not enough that experimentation power consumption and feed liquid consumption are big etc., on the one hand, can't adapt to the situation of lab space deficiencies such as scientific research institutions, institution of higher learning; On the other hand, the requirement of consumption of raw materials amount is tried hard to reduce by the research and development institution that also can't satisfy some industry in the development experimentation of product.

(3) summary of the invention

The utility model provides a kind of volume little, removable at the deficiencies in the prior art, is convenient to dismounting, cleans, and is easy to control operation, the mini spray dryer that the complete machine power configuration is low.

The technical solution adopted in the utility model is:

Mini spray dryer is made up of electric heater, hot-air distributor, hothouse, peristaltic pump, cyclone separator, pneumatic atomizer, gas flowmeter, electric control box, air-introduced machine and base, electric heater, hothouse, peristaltic pump, cyclone separator, gas flowmeter, electric control box and air-introduced machine are installed on the base, have universal braked wheel on the base; Electric heater, hot-air distributor, hothouse and cyclone separator are connected in turn; Pneumatic atomizer is placed on the atomizer holder at hot-air distributor top, is connected with gas flowmeter with the discharging opening of peristaltic pump, and the shaft of atomizer passes the central tube of hot-air distributor, makes spray orifice stretch out hot-air distributor; Be provided with outer air channel and internal layer air channel in the hot-air distributor; The hothouse bottom is provided with and is subjected to barrel; The cyclone separator bottom is provided with the material feeding cup; The air-vent of air-introduced machine is connected with cyclone separator; Electric heater, peristaltic pump and air-introduced machine are carried out with the control circuit in the electric control box and are electrically connected.

The spray orifice aperture of pneumatic atomizer is 0.5-0.7mm.

Hothouse, cyclone separator, be subjected to barrel and material feeding cup to be the heatproof Pyrex to make.

The utility model makes compact conformation, volume can be reduced to 600mm * 320mm * 950mm (length * wide * height) by rational deployment.Conveniently moving, easy operating, disassembly, cleaning are convenient, and drying effect is good, and power consumption is low, and the consumption of raw materials amount is low, only needs the material quantity of 100--600ml can obtain for the product of analyzing experiment usefulness.

(4) description of drawings

Fig. 1 is the operation principle flow chart of the utility model mini spray dryer.

Fig. 2 is the structural representation of the utility model mini spray dryer.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the surface structure schematic diagram of hot-air distributor in the utility model.

Fig. 5 is along A-A line cutaway view among Fig. 4.

Fig. 6 is along B-B line cutaway view among Fig. 5.

Fig. 7 is a control circuit schematic diagram of the present utility model.

Wherein: 1, electric heater, 2, peristaltic pump, 3, the raw material cup, 4, air compressor machine, 5, gas flowmeter, 6, pneumatic atomizer, 7, the glass hothouse, 8, be subjected to barrel, 9, the glass cyclone separator, 10, the material feeding cup, 11, air-introduced machine, 12, electric control box, 13, hot-air distributor, 14, universal braked wheel, 15 bases, 16, hot-wind inlet, 17, outer air channel, 18, the internal layer air channel, 19, the atomizer holder, 20, central tube, 21, the EAT sensor, 22, the leaving air temp sensor, 23, master board, 24, button, 25 peristaltic pump control panels, 26, frequency converter

(5) specific embodiment

Fig. 1 has provided the operation principle flow chart of the utility model mini spray dryer, feed liquid to be dried is delivered to pneumatic atomizer 6 through peristaltic pump 2 in raw material cup 3, simultaneously the compressed air that is produced by air compressor machine 4 is after gas flowmeter 5 is regulated, deliver to pneumatic atomizer 6 with suitable flow and pressure, utilize the speed difference of atomizer exit compressed air and stock yard, atomizing raw materials is become countless small droplets.Natural air is under the effect of air-introduced machine 11, heated by electric heater 1, through behind the reasonable cloth wind of hot-air distributor 13, enter glass hothouse 7, contact fully with the raw material droplet therein and caloic exchange rapidly, in the extremely short time, raw material is removed moisture, be dried to powder product, the product of larger particles is by being collected by barrel 8, and the thinner powder of major part is collected by material feeding cup 10 after glass cyclone separator 9 separates.Tail gas emptying behind air-introduced machine 11.

In Fig. 2 and the structural representation of the present utility model shown in Figure 3, mini spray dryer is made up of electric heater 1, hot-air distributor 13, glass hothouse 7, peristaltic pump 2, cyclone separator 9, pneumatic atomizer 6, gas flowmeter 5, electric control box 12, air-introduced machine 11 and base 15, and electric heater 1, glass hothouse 7, peristaltic pump 2, cyclone separator 9, gas flowmeter 5, electric control box 12 and air-introduced machine 11 are installed on the base; Pneumatic atomizer 6 is installed on the holder 19 on hot-air distributor 13 tops, and two mouths are connected with gas flowmeter 5 with the discharging opening of peristaltic pump 2 on it, and the shaft of atomizer passes the central tube 20 of hot-air distributor, makes spray orifice stretch out hot-air distributor; Electric heater 1, hot-air distributor 13, hothouse 7 and cyclone separator 9 connect successively; Hothouse 7 bottoms are provided with and are subjected to barrel 8; Cyclone separator 9 bottoms are provided with material feeding cup 10; The air-vent of air-introduced machine 11 is connected with cyclone separator 9; Electric heater 1, peristaltic pump 2 and air-introduced machine 11 are controlled by the control circuit in the electric control box 12.Have universal braked wheel 14 below the base 15, drying machine is moved in the laboratory everywhere.The spray orifice aperture of pneumatic atomizer 6 is 0.5-0.7mm.Utilize compressed air that feed liquid is atomized, the volume of hothouse is reduced greatly, only needing diameter is 100-150mm, highly can satisfy dry requirement for the space of 520mm.Hothouse 7, cyclone separator 9, be subjected to barrel 8 and material feeding cup 10 to be the heatproof Pyrex to make, but 300 ℃ of heatproofs promptly are convenient to the observation experiment process, are easy to again clean.All adopt screw thread to add the connection sealing means of silicagel pad between each parts, be easy to dismounting.Fig. 4, Fig. 5, hot-air distributor 13 shown in Figure 6 have the unique texture in outer air channel 17 and internal layer air channel 18.Make that a part is advanced after the hot-air after the electric heater heating enters from hot-wind inlet 16 in outer air channel 17, form, effectively prevented the sticking wall of raw material droplet along the descending attached wall wind of hothouse 7 walls; Another part advances in internal layer air channel 18, forms rotation wind in pneumatic atomizer 6 exits, and hot-air is fully contacted with the raw material droplet, carries out caloic exchange efficiently, produces good drying effect.

Fig. 7 has provided control circuit schematic diagram of the present utility model.EAT is controlled by sensor 22 by sensor 21 controls, leaving air temp, parameters such as dry air quantity, feed liquid consumption all can be by button 24 convenient controls exactly, peristaltic pump 2 is by control panel 25 controls, air-introduced machine 11 is by frequency converter 26 controls, and

sensor

21 and 22, button 24, control panel 25, frequency converter 26 are all with master board 23 bindings and by its control.Being used for the compressed air of atomized feed also can regulate its flow and pressure exactly by gas flowmeter 5, therefore, makes the easy and simple to handle of entire equipment, stable equipment operation, reliable.The power configuration of complete machine is 3KW, greatly reduces the power consumption of experimentation.

Each parts of the present utility model are through reasonably layout and configuration, make wholely in dry machine self-organizing system, and compact conformation, its volume only are 600mm * 320mm * 950mm (length * wide * height).

Claims

1. mini spray dryer, form by electric heater, hot-air distributor, hothouse, peristaltic pump, cyclone separator, pneumatic atomizer, gas flowmeter, electric control box, air-introduced machine and base, electric heater, hothouse, peristaltic pump, cyclone separator, gas flowmeter, electric control box and air-introduced machine are installed on the base, it is characterized in that: have universal braked wheel on the base; Electric heater, hot-air distributor, hothouse and cyclone separator are connected in turn; Pneumatic atomizer is placed on the atomizer holder at hot-air distributor top, is connected with gas flowmeter with the discharging opening of peristaltic pump, and the shaft of atomizer passes the central tube of hot-air distributor, makes spray orifice stretch out hot-air distributor; Be provided with outer air channel and internal layer air channel in the hot-air distributor; The hothouse bottom is provided with and is subjected to barrel; The cyclone separator bottom is provided with the material feeding cup; The air-vent of air-introduced machine is connected with cyclone separator; Electric heater, peristaltic pump and air-introduced machine are carried out with the control circuit in the electric control box and are electrically connected.

2. mini spray dryer according to claim 1 is characterized in that: the spray orifice aperture of described pneumatic atomizer is 0.5-0.7mm.

3. mini spray dryer according to claim 1 and 2 is characterized in that: described hothouse, cyclone separator, be subjected to barrel and material feeding cup to be the heatproof Pyrex to make.