CN2616873Y

CN2616873Y - Stalk fluidized drying machine

Info

Publication number: CN2616873Y
Application number: CN 03221595
Authority: CN
Inventors: 马铁兵; 吴伏立; 许礼春
Original assignee: JIANGSU ZHISI MACHINERY MANUFACTURE CO Ltd
Current assignee: JIANGSU ZHISI MACHINERY MANUFACTURE CO Ltd
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2004-05-19
Anticipated expiration: 2013-04-30

Abstract

The utility model relates to a fluidized bed dryer which is used to dry the stalk silk, comprising a frame, a fluidized bed, a vibration motor which is arranged on the outside of the fluidized bed, and a cover shell which is arranged on the top of the fluidized bed. The fluidized bed is connected with the frame through an elastic support. The fluidized bed is provided with more than two independent drying chambers which are composed of a shell cover and a separator. Every drying chamber is provided with an independent hot air box, and the hot air box is connected with the hot air generating device of own. At least a drying chamber is arranged above the fluidized bed, and the hot air box is connected with the transfixion vertical air transmission pipe. The air blows to the surface of the fluidized bed from lower to up through the vertical air transmission pipe. Other hot air box is arranged under the fluidized bed, the hot air box is connected with the holes of the surface of the fluidized bed, and the hot air blows to the surface of the fluidized bed from the bottom of the fluidized bed. The utility model has the advantages of even moisture content of the out material of the stalk silk, relatively simple structure, and low cost.

Description

Novel stem fluidized drying machine

Technical field

The utility model relates to a kind of fluidization drying apparatus, relates in particular to a kind of desiccant fluidized drying machine of stem that is used for.

Background technology

Fluidization drying apparatus is not joined because of shell and is shaken, and complete machine intensity is better, in to the stem dry run, because of reducing the broken rate of stem, so be widely used in the stem explosion puffing drying.But common novel stem fluidized drying machine, its heating cabinet all is arranged on the bottom of fluid bed, and the fluidisation bed surface is provided with many apertures, and hot blast when the aperture of bed surface blows afloat material, makes material carry out the exchange of heat and mass at the bottom of the bed.But because hot blast is to blow from the bottom up, unit weight difference because of the stem individuality, and drying medium is not evenly absolute in cross direction profiles especially at the wind-force of hothouse, and do on the upper strata, lower floor is wet so can produce during the stem discharging, and discharging stem moisture content has than phenomenons such as big-differences.And the good fluidized drying machine of another kind of drying effect, its hot bellows all is arranged on the top of fluid bed, blow to the corresponding boss of fluidisation bed surface by vertical guide duct, material is dispelled, carry out the exchange of sufficient heat and mass with material, solved laterally the be heated irregular problem of material at fluid bed.But adopt the fluidized drying machine of vertical guide duct, can increase the cost of manufacture of fluidized drying machine because of complex structure.

Summary of the invention

The purpose of this utility model provides that a kind of stem discharging moisture content is even, and structure is simple relatively, the novel stem fluidized drying machine that cost is low.

The utility model is that the technical scheme that achieves the above object is: a kind of novel stem fluidized drying machine, comprise frame, fluid bed, be installed in the vibrating motor in the fluid bed outside and the case that is arranged on fluid bed top, fluid bed is connected with frame by elastic bearing, it is characterized in that: described fluid bed has hothouse separate more than two at least, hothouse is made of case and dividing plate, each hothouse is equipped with independently hot bellows, and the hot bellows perforation that links to each other with separately hot air generator, the hot bellows of at least one hothouse is arranged on the top of fluid bed, hot bellows is connected with the vertical guide duct of perforation, hot blast blows to the fluidisation bed surface from top to bottom by vertical guide duct, remaining hot bellows then is arranged on the bottom of fluid bed, hot bellows communicates with aperture on the fluidisation bed surface, and hot blast blows to the fluidisation bed surface from the fluid bed bottom.

The utility model adopts the advantage after the technique scheme to be: the utility model is divided into plural hothouse with fluid bed, and the hot bellows of each hothouse is separately positioned on the bottom and the top of fluid bed, structure is simple relatively, respectively the stem in the fluid bed is carried out heat and mass by the hot blast that upwards blows and downward blowing hot-air, improve dry efficient height, can solve the material upper strata preferably does, the fault-layer-phenomenon that lower floor is wet, guarantee that dry materials is even, especially by vertical guide duct, remedied material in the even problem of the horizontal uneven drying of fluid bed, stem discharging moisture content is kept evenly.Secondly, when the hot blast of hot bellows blows from top to bottom through vertical guide duct, avoided vertical guide duct by material stop up may, keep that air-flow is unblocked to be blown from top to bottom, drying efficiency to the beginning to unaffected eventually.Moreover its hot bellows of hothouse of the present utility model is separate, and hot bellows communicates with separately hot air generator again, can be according to importing and exporting the temperature that material water ratio require to control each hot bellows in the fluid bed, and control operation is convenient, and can cut down the consumption of energy.Because each hothouse all communicates with hot air generator by backwind tube, constitute hot air circulating system, make the hot-air system volume-diminished, entire equipment is very compact.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the side view of Fig. 1

Fig. 4 is the structure for amplifying structure chart at the I place of Fig. 3.

Specific implementation method

Novel stem fluidized drying machine shown in Fig. 1～3, the case 12 that comprises frame 4, fluid bed 2, is installed in the vibrating motor 7 in fluid bed 2 outsides and is arranged on fluid bed 2 tops, fluid bed 2 is connected with frame 4 by elastic bearing 5, vibrating motor 7 drives fluid bed 2 vibrations, and the material in the fluid bed is moved forward.Fluid bed 2 has plural separate hothouse at least, each hothouse is made of case 12 and the dividing plates 23 that are fixed in the case 12, and each hothouse is equipped with independent

hot bellows

8,6,17, and each

hot bellows

8,6,17 perforation that links to each other with separately

hot air generator

9,20,1 again,

hot air generator

9,20,1 connects and composes by blower fan, tube connector and heat exchanger and warm-air pipe, the temperature of each hothouse can require to set according to import and export material water ratio in the fluid bed, and control operation is convenient.The hot bellows 17 of at least one hothouse of stem fluidized drying machine of the present utility model is arranged on the top of fluid bed 2, hot bellows 17 is connected with the vertical guide duct 3 of perforation, hot blast blows to the fluidisation bed surface by vertical guide duct 3, material is carried out heat and mass, 8,6 bottoms that are arranged on fluid bed 2 of remaining hot bellows,

hot bellows

8,6 communicates with its hothouse by the aperture on the fluidisation bed surface, and hot blast blows to the fluidisation bed surface from fluid bed 2 bottoms, and the material in the fluid bed is carried out heat and mass.

As shown in Figure 1, 2, it is three hothouses that the fluid bed of stem fluidized drying machine of the present utility model preferably adopts, the

hot bellows

8,6 of the first two hothouse is arranged on the bottom of fluid bed 2, the hot bellows 17 of last hothouse is arranged on the top of fluid bed 2, by vertical guide duct 3 hot blast is evenly blown to the material of fluidisation bed surface, material discharging moisture content is kept evenly.Same fluid bed also can adopt two hothouses, the hot bellows of previous hothouse is arranged on the bottom of fluid bed, hot blast blows from the bottom up material is carried out drying, the hot bellows of the hothouse in back is arranged on the top of fluid bed, hot blast blows from top to bottom material is carried out drying, when material passed through fluid bed, hot blast carried out dryness finalization from different directions to material respectively.

For guarantee hot blast with material to fore blow, the angle of vertical guide duct 3 and discharging one effluent bed surface is at 91 °～96 °.The utility model is in order conveniently to regulate distance between vertical guide duct 3 and the fluidisation bed surface, see shown in Fig. 3,4, vertical guide duct 3 is to be contained on the base 26 of hot bellows 17 bottoms, hot bellows 17 peripheries be connected with bearing 24, be equipped with on the bearing 24 and regulate bolt 25, by regulating bolt base 26 is moved up and down, to regulate the distance of vertical guide duct 3 and fluidisation bed surface, this governor motion also can adopt other known technology to regulate.

For preventing that material from entering backwind tube with hot blast, the screen pack 22 that links to each other with case 12 is all arranged on the top of each hothouse, screen pack 22 is vertically curved along fluid bed 2, the many groups jet pipe 18 that communicates with source of the gas extends in case 10 and passes the also curved layout of dividing plate 23, the nozzle of many group jet pipes 18 is facing to screen pack 22, be connected with control valve 19 between many group jet pipes 18 and the source of the gas, regularly to screen pack 22 blowings, the mesh of guaranteeing screen pack 22 is not blocked, to influence hot air circulation, bottom at screen pack 22 also is provided with drip feed plate 16, and drip feed plate 16 is pyramid or coniform.

For maximally utilising return air, improve the thermal efficiency, the top of each hothouse also has

backwind tube

11,13,21, each

backwind tube

11,13,21 links to each other with separately

hot air generator

9,20,1 and constitutes hot air circulation mechanism, each

backwind tube

11,13,21 communicates with humidity discharging pipe 15 by exhausting moisture valve 14, outside a part of high humidity hot blast discharge machine, most hot blast circulates in entire work process, for satisfying the requirement of circulatory system air quantity, be equipped with benefit air-valve 10 at each

backwind tube

11,13,21.

During the utility model work, material is delivered to the fluidized drying machine by conveying device, it is reciprocating that vibrating motor drives fluid bed, the material upthrow is moved forward, material is by the first two hothouse, hot blast upwards blows from the bottom of fluid bed, material is carried out drying, and in the time of in material passes through the 3rd hothouse, then hot blast blows from top to bottom by vertical guide duct, make material in the upthrow reach, carry out sufficient matter and hot exchange with hot blast, make the rapid dryness finalization of material, after filtering through filter screen 18 through the return air after the heat exchange, by backwind tube 70～80% return air is delivered to and to be recycled after hot air generator is heated, another part is then discharged by the humidity discharging pipe.

Claims

1, a kind of novel stem fluidized drying machine, comprise frame (4), fluid bed (2), be installed in the vibrating motor (7) in fluid bed (2) outside and the case (12) that is arranged on fluid bed (2) top, fluid bed (2) is connected with frame (4) by elastic bearing (5), it is characterized in that: described fluid bed (2) has hothouse separate more than two at least, hothouse is made of case (12) and dividing plate (23), each hothouse is equipped with independently hot bellows, and the hot bellows perforation that links to each other with separately hot air generator, the hot bellows of at least one hothouse is arranged on the top of fluid bed (2), hot bellows is connected with the vertical guide duct (3) of perforation, hot blast blows to the fluidisation bed surface from top to bottom by vertical guide duct (3), remaining hot bellows then is arranged on the bottom of fluid bed (2), hot bellows communicates with aperture on the fluidisation bed surface, and hot blast blows to the fluidisation bed surface from the fluid bed bottom.

2, novel stem fluidized drying machine according to claim 1, it is characterized in that: described hothouse is three, the hot bellows of preceding two hothouses (8), (6) are arranged on the bottom of fluid bed (2), and the hot bellows of last hothouse (17) is arranged on the top of fluid bed (2).

3, novel stem fluidized drying machine according to claim 1 is characterized in that: the angle of described vertical guide duct (3) and discharging one effluent bed surface is at 91 °～96 °.

4, according to claim 1 or 3 described novel stem fluidized drying machines, it is characterized in that: described vertical guide duct (3) is connected on the base (26) of hot bellows (17) bottom, is fixed on to be equipped with on the peripheral bearing (24) of hot bellows (17) to regulate the adjusting bolt (25) that base (26) moves up and down.

5, novel stem fluidized drying machine according to claim 1 and 2, it is characterized in that: the screen pack (22) that links to each other with case (12) is all arranged at the top of described each hothouse, the many groups jet pipe (18) that communicates with source of the gas by control valve (19) extends in the case (12) and passes dividing plate (23), the nozzle of many group jet pipes (18) is facing to screen pack (22), also be provided with drip feed plate (16) in the bottom of screen pack (22), drip feed plate (16) is pyramid or coniform.

6, novel stem fluidized drying machine according to claim 5, it is characterized in that: described screen pack (22) is vertically curved along fluid bed (2), and organizes jet pipe (18) more and be and be that arc arranges.

7, novel stem fluidized drying machine according to claim 1 and 2, it is characterized in that: each hothouse top also has independently each backwind tube, each backwind tube links to each other with separately hot air generator and constitutes heated air circulation device, each backwind tube communicates with humidity discharging pipe (15) by exhausting moisture valve (14), also is provided with to mend air-valve (10) on each backwind tube.