CN2816708Y

CN2816708Y - Multi-layer multi-chamber fluidizing bed dryer

Info

Publication number: CN2816708Y
Application number: CN 200520030900
Authority: CN
Inventors: 王初阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-07
Filing date: 2005-06-07
Publication date: 2006-09-13
Anticipated expiration: 2015-06-07

Abstract

The utility model discloses a multi-layer multi-chamber fluidizing bed dryer, which comprises multi-chamber fluidized beds and air heaters positioned below the multi-chamber fluidized beds, wherein the air heaters are arranged on a bracket; a plurality of fluidization chambers composed of spacer plates and bed surfaces is arranged in the multi-chamber fluidized beds. The number of the multi-chamber fluidized beds is two, and the utility model is additionally provided with two settling boxes; the multi-chamber fluidized beds and the settling boxes are interacted to superpose up and down, and are connected. For the multi-layer multi-chamber fluidizing bed dryer, material in the dryer is orderly traversed chamber by chamber and are shifted down layer by layer. Hot air and cold air enter from the lowerest layer multi-chamber fluidized bed along each passage, and flow through each layer multi-chamber fluidized bed layer by layer from bottom to top. The hot and the cold air and moist material are operated in countercurrent, and heat energy is used many times; the material flows orderly, and a finished product has good uniformity; meanwhile, overflow at the outside of the multi-chamber fluidized beds is realized. Thus, the utility model has the advantages of convenient operation, reliable wet material work, stable bed surface work and strong adaptability for the material.

Description

Multilayer, multi-cell fluidized bed drying machine

Technical field

The utility model belongs to drying machinery, relates in particular to a kind of fluidized bed drying machinery.

Background technology

The fluidized bed drying machinery type of using at present has: single-layer fluidized bed drying machine, multicompartment fluidized bed drying machine, horizontal multi-cell fluidized bed drying machine, spouted bed drying machine, Vibratingfluidbeddrier etc.The fluid bed dryer of these types respectively has pluses and minuses.

The multicompartment fluidized bed drying machine, wet stock adds from the top, moves down gradually, is discharged by the bottom, and hot-air is infeeded by the bottom, upwards by each layer, discharges from the top.Material and gas reverse flow, gas repeatedly contacts with material, so the water vapour saturation degree of tail gas improves, heat utilization efficiency improves.But it is unordered that material moves in every layer, and particle time of staying in drying plant is not waited, and influences the uniformity of goods moisture, and to requiring the material of long time drying, just needing increases the drier number of plies, causes crushing big, the power consumption height.In addition, prior art, upper materials is all passed through an interior overflow pipe to lower floor, overflow pipe inconvenient operation in the bed, and be easy to produce material obstruction or gas perforation, and cause the blanking instability, destroy fluidized state.

Horizontal multi-cell fluidized bed drying machine, the cross section of this drying machine is rectangular, vertical baffle is divided into Room 5～8 with bed therebetween, baffle plate and bed surface have the gap of 10～60mm, make material after entering first Room, preface is moved by order in the gap successively, and draws off from last chamber, short circuit phenomenon does not appear in material, makes the wet stock uniform drying.The pressure drop of this multicell drying system is less than multilayer, and heat utilization efficiency is lower than multilayer, and the more again floor height of energy consumption causes energy waste.

Summary of the invention

The purpose of this utility model is to provide a kind of heat utilization efficiency height, crushing is little, moisture content of finished products is even, easy to operate, to the adaptable multilayer of wet stock, multi-cell fluidized bed drying machine.

The purpose of this utility model is achieved through the following technical solutions: a kind of multilayer, the multi-cell fluidized bed drying machine, comprise multi-cell fluidized bed and the air heater that is positioned at its below, air heater is contained on the support, some fluidising chamber that are made of dividing plate and bed surface are arranged in the multi-cell fluidized bed, multi-cell fluidized bed has two, one deck multi-cell fluidized bed is positioned at two layers of multi-cell fluidized bed top, the discharging opening of one deck multi-cell fluidized bed is connected by the outer overflow device of bed with the charging aperture of two layers of multi-cell fluidized bed, above one deck multi-cell fluidized bed, there is one deck flow tank to join with it, between one deck multi-cell fluidized bed and two layers of multi-cell fluidized bed, there are two layers of flow tank to join with the two simultaneously, in two layers of flow tank the flow tank dividing plate is housed, the having heaters dividing plate is divided into some air intake passages with its inner space in the air heater, between air heater and two layers of multi-cell fluidized bed air vent is arranged, air vent is also arranged between multi-cell fluidized bed and the flow tank.

Equal air-valve is housed on the base plate of air heater, has one in the air intake passage of air heater at least for not adorning the cold air duct of heating element heater, the discharging opening of the charging aperture of cold air duct, one deck multi-cell fluidized bed and two layers of multi-cell fluidized bed is positioned at the same side, the charging aperture of one deck multi-cell fluidized bed links to each other with feeding mechanism, and the discharging opening of two layers of multi-cell fluidized bed links to each other with two layers of overflow mechanism.

The cross-sectional area of described flow tank is greater than the cross-sectional area of multi-cell fluidized bed.

Two layers of dividing plate in one deck dividing plate in one deck multi-cell fluidized bed, flow tank dividing plate, the two layers of multi-cell fluidized bed is identical respectively with the number of heater dividing plate.

Adopt multilayer, the multi-cell fluidized bed drying machine of technique scheme, material is orderly traversing by the chamber in machine, successively move down, hot-air, cold air enter from the orlop multi-cell fluidized bed along passage separately, successively flow through each layer multi-cell fluidized bed from top to bottom, heat, cold air and wet stock counter-current operation, heat energy is repeatedly utilized, and Flow of Goods and Materials is orderly, the finished product good uniformity, simultaneously, realized the bed an outer overflow, make easy to operate, the wet feed reliable operation, the bed surface working stability is strong to material adaptability.

Description of drawings

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

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

The specific embodiment

Multilayer as shown in Figure 1 and Figure 2, multi-cell fluidized bed drying machine, comprise multi-cell fluidized bed and the air heater 19 that is positioned at its below, air heater 19 is contained on the support 20, multi-cell fluidized bed has two: one deck multi-cell fluidized bed 16 and two layers of multi-cell fluidized bed 18, there are 5 one deck dividing plates 12 that one deck bed surface 11 is separated into 6 fluidising chamber in one deck multi-cell fluidized

bed

16,11 of one deck dividing plate 12 and one deck bed surfaces have 10～60 mm clearance, equally, there are 5 two layers of dividing plates 9 that two layers of bed surface 7 are separated into 6 fluidising chamber in two layers of multi-cell fluidized bed.One deck multi-cell fluidized bed 16 is positioned at two layers of multi-cell fluidized bed 18 top, the discharging opening of one deck multi-cell fluidized bed 16 is connected by the outer overflow device 8 of bed with the charging aperture of two layers of multi-cell fluidized bed 18, above one deck multi-cell fluidized bed 16, there is one deck flow tank 15 to join with it, between one deck multi-cell fluidized bed 16 and two layers of multi-cell fluidized bed 18, there are two layers of flow tank 17 to join with the two simultaneously, 5 flow tank dividing plates 10 are housed in the two floor flow tank 17 two floor flow tank 17 are separated into 6 chambers, there are 5 heater dividing plates 3 that its inner space is divided into 6 air intake passages in the air heater 19, between air heater 19 and two layers of multi-cell fluidized bed 18 air vent is arranged, equally, between two layers of multi-cell fluidized bed 18 and the two layers of flow tank 17, between one deck multi-cell fluidized bed 16 and the two layers of flow tank 17, between one deck multi-cell fluidized bed 16 and one deck flow tank 15 air vent is arranged also.

Equal air-valve 2 is housed on the base plate of air heater 19, there is one in the air intake passage of air heater for not adorning the cold air duct 6 of heating element heater 4, other 5 is the hot-air channel 5 that heating element heater 4 is housed, and the charging aperture of cold air duct 6, one deck multi-cell fluidized bed 16 and the discharging opening of two layers of multi-cell fluidized bed 18 are positioned at the same side.The charging aperture of one deck multi-cell fluidized bed 16 links to each other with feeding mechanism 13, and the discharging opening of two layers of multi-cell fluidized bed 18 links to each other with two layers of overflow mechanism 1.

The cross-sectional area of one deck flow tank 15 is greater than the cross-sectional area of one deck multi-cell fluidized bed 16, and the cross-sectional area of two layers of flow tank 17 is greater than the cross-sectional area of two layers of multi-cell fluidized bed 18.The top of one deck flow tank is inlet scoop 14, and it can insert combination wind net, also can insert independent blower fan, and equipment is carried out air draught.

Generally speaking, the convenience of installing for making, one deck dividing plate 12, flow tank dividing plate 10, two layers of dividing plate 9 are identical with the number of heater dividing plate 3.Certainly, the number of multi-cell fluidized bed is not limited to above-mentioned two, also three or more as required, only needs the number of corresponding increase flow tank, and flow tank and multi-cell fluidized bed is alternately joined get final product.

The course of work of the present utility model is as follows: wet stock advanced one deck multi-cell fluidized bed 16 by feeding mechanism 13 closing under the wind state, the material right-to-left successively preface by Clearance Flow to a last Room, overflow device 8 enters two layers of multi-cell fluidized bed 18 outside bed, flows out through two layers of overflow mechanism 1 from left to right again.In the Flow of Goods and Materials process, carry out air draught with blower fan, air enters air heater 19 through equal air-valve 2, air in the hot-air channel 5 is heated element 4 heating after air vent enters two layers of multi-cell fluidized bed 18, material is carried out drying, and the air in the cold air duct 6 also enters two layers of multi-cell fluidized bed, and the material that will flow out is cooled off, air blows afloat material, forms the fluidisation shape; Air is advanced into two layers of flow tank 17 on continuing, because the effect of flow tank dividing plate 10, can keep steady air current and cold to greatest extent, the isolation of hot-air, simultaneously, because the cross-sectional area of two layers of flow tank 17 increases, wind speed reduces, material sinks and air separation under the gravity effect, air is advanced into one deck multi-cell fluidized bed 16 on continuing, hot blast secondary in the hot-air channel 5 utilizes, continuation is carried out drying to material, cold wind in the cold air duct 6 brings the heat of material in two layers of multi-cell fluidized bed the material to just entering one deck multi-cell fluidized bed 16 to carry out preheating, air enters one deck flow tank 15 after passing one deck multi-cell fluidized bed, and in this and feed separation, 14 flow out from the inlet scoop.

Claims

1, a kind of multilayer, the multi-cell fluidized bed drying machine, comprise multi-cell fluidized bed and the air heater that is positioned at its below, air heater is contained on the support, some fluidising chamber that are made of dividing plate and bed surface are arranged in the multi-cell fluidized bed, it is characterized in that described multi-cell fluidized bed has two, one deck multi-cell fluidized bed is positioned at two layers of multi-cell fluidized bed top, the discharging opening of one deck multi-cell fluidized bed is connected by the outer overflow device of bed with the charging aperture of two layers of multi-cell fluidized bed, above one deck multi-cell fluidized bed, there is one deck flow tank to join with it, between one deck multi-cell fluidized bed and two layers of multi-cell fluidized bed, there are two layers of flow tank to join with the two simultaneously, in two layers of flow tank the flow tank dividing plate is housed, the having heaters dividing plate is divided into some air intake passages with its inner space in the air heater, between air heater and two layers of multi-cell fluidized bed air vent is arranged, air vent is also arranged between multi-cell fluidized bed and the flow tank.

2, multilayer as claimed in claim 1, multi-cell fluidized bed drying machine, it is characterized in that on the base plate of air heater equal air-valve being housed, has one in the air intake passage of air heater at least for not adorning the cold air duct of heating element heater, the discharging opening of the charging aperture of cold air duct, one deck multi-cell fluidized bed and two layers of multi-cell fluidized bed is positioned at the same side, the charging aperture of one deck multi-cell fluidized bed links to each other with feeding mechanism, and the discharging opening of two layers of multi-cell fluidized bed links to each other with two layers of overflow mechanism.

3, multilayer as claimed in claim 1, multi-cell fluidized bed drying machine is characterized in that the cross-sectional area of the cross-sectional area of described flow tank greater than multi-cell fluidized bed.

4, multilayer as claimed in claim 1, multi-cell fluidized bed drying machine is characterized in that the number of two layers of dividing plate in one deck dividing plate, the flow tank dividing plate in one deck multi-cell fluidized bed, the two layers of multi-cell fluidized bed and heater dividing plate is identical respectively.