CN201449112U

CN201449112U - Novel vibrating fluidized bed dryer with built-in tube bundle heaters

Info

Publication number: CN201449112U
Application number: CN2009200416666U
Authority: CN
Inventors: 陆国民; 严万鹏
Original assignee: JIANGYIN FENGLI BIOENGINEERING EQUIPMENT CO Ltd
Current assignee: JIANGYIN FENGLI BIOENGINEERING EQUIPMENT CO Ltd
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2010-05-05
Anticipated expiration: 2019-03-30

Abstract

The utility model relates to a novel vibrating fluidized bed dryer with built-in tube bundle heaters, which comprises a vibrating fluidized bed dryer (1), the vibrating fluidized bed dryer (1) comprises a base (1.1), a bellows (1.2), a drying chamber (1.3) and a fluidized bed sieve plate (1.4), three baffles (1.2.5) are vertically arranged in the bellows (1.2) to sequentially divide the inner chamber of the bellows (1.2) into four drying sections, and four groups of tube bundle heaters (2) are vertically arranged in the drying chamber (1.3) over the fluidized bed sieve plate (1.4), and are arranged in pairs over the second drying section and the third drying section. By arranging the tube bundle heaters in the vibrating fluidized bed dryer, the utility model adopts the combination of a convective heating mode and a conductive heating mode, thus increasing the overall heat transfer efficiency of the vibrating fluidized bed dryer and ensuring the material-heating quality.

Description

The novel vibrating fluid bed dryer of built-in tube bank heater

(1) technical field

The utility model relates to a kind of drying machine.Be applicable to the heat drying of various solid materials.Belong to the fluid bed dryer equipment technical field.

(2) background technology

At present, Vibratingfluidbeddrier is to adopt the direct Convective Heating drying of air carrier.This mode of heating, mass transfer and rate of heat transfer are very fast, also do not destroy product quality, but, in the process of fluid bed Convective Heating, the higher air carrier discharging of big amount temperature is arranged, taken away a lot of heats, so the consumption of the steam of heat energy is too big, the complete machine heat transfer efficiency is low.Tube heater is to adopt the mode of heating of conduction indirectly.This mode of heating has made full use of the condensation latent heat of steam, does not almost have heat loss, has saved steam, has reduced energy consumption.But, this mode of heating, material and heating tube bundle device are longer time of contact, can cause material to influence product quality because of hot-spot.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, and the novel vibrating fluid bed dryer of a kind of complete machine heat transfer efficiency height, built-in tube bank heater that the material heating quality is good is provided.

The purpose of this utility model is achieved in that a kind of novel vibrating fluid bed dryer of built-in tube bank heater, the involving vibrations fluid bed dryer, described Vibratingfluidbeddrier comprises by base, bellows, drying chamber and fluid bed sieve plate, the described bellows elasticity that makes progress is connected on the base, the drying chamber sealing is arranged at the bellows top, the fluid bed sieve plate is horizontally disposed with the junction with described drying chamber and bellows, be vertically installed with three baffle plates in the described bellows, described three baffle plates box cavity of keeping watch is separated between four sections dry sections successively, be respectively first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section, described first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section are respectively arranged with first section air inlet, second section air inlet, the 3rd section air inlet and the 4th section air inlet; Be vertically installed with the tube bank heater in the drying chamber of described fluid bed sieve plate top, this tube bank heater has four groups, four groups of tube bank heaters are arranged at described second section dry section, the 3rd section dry section top in twos, and first section dry section and the 4th section dry section top are not provided with the tube bank heater; Described every group of tube bank heater comprises vertical tube bundle, transverse tube and steam manifold, described transverse tube has two, be arranged in parallel up and down, described vertical tube Shu Shuzhi is connected in described up and down between two transverse tubes, each vertical tube of described vertical tube bundle is structure ringwise, be mutual arranged crosswise between adjacent two vertical tubes of each of described vertical tube bundle, described steam manifold has two, about be arranged in parallel in the two ends, the left and right sides of described two transverse tubes, and be provided with diaphragm plate in the steam manifold therein, and steam inlet and condensation-water drain are set respectively in this side that is provided with the steam manifold of diaphragm plate.

The tube bank surface of the tube bank heater that the utility model adopts can make the rate of climb of bubble in bed be restricted, and the generation of broken ring wet stock surface evaporation gasification air pocket, be beneficial to the operation of fluidized drying, in vertical tube, pass to simultaneously Steam Heating, to replenish the shortage of heat of dry run, this heater has the characteristics that thermal loss is little, heat utilization ratio is high.

Advantage and Expected Results that the utility model is compared with prior art are:

1, the utility model has changed conventional cross-ventilation heating and cooling form by the tube heater of indirect is set in Vibratingfluidbeddrier, is replaced by indirect conduction heating or cooling, has improved energy-saving effect.

Find out according to interrelated data: the steam that generally adopts fluidized bed drying and evaporation one kg of water to consume is the 3-4 kilogram, and the drying equipment of employing tube bank heating carries out drying and evaporation one kg of water consumption steam is 1.4 kilograms.Thereby the utility model drying equipment is compared with prior art, and one kilogram of dried material of every dehydration consumes the heating steam amount and can save more than 30%.

2, the utility model has increased the tube bank heater of conduction heat drying material, the steam that the heating air carrier can in time gasify away the wet stock surface evaporation is taken away, thereby material is remained in the desired safe temperature scope.This has created advantage to the higher medicine of thermal sensitivity and the quality safety of food.Simultaneously, in bed, formed instantaneous the contact between fluidised material and the heating tube bundle device, can not cause material to influence product quality because of hot-spot.

3, the utility model is because of having made up the dry technology of convection current and conduction, and one has been finished operations such as wet stock preheating, wet stock drying and finished product cooling in fluid bed.Therefore, facility compact, rationally distributed, investment is saved, and is easy to operate.

To sum up, the utility model has been taked convection current and the combination of conduction mode of heating by the tube bank heater is set in Vibratingfluidbeddrier, improve the whole heat transfer efficiency of Vibratingfluidbeddrier.Guaranteed the material heating quality.

(4) description of drawings

Fig. 1 is the front appearance figure of the novel vibrating fluid bed dryer of the built-in tube bank heater of the utility model.

Fig. 2 is the A-A cut-away view of Fig. 1.

Fig. 3 is that the fluid bed sieve plate concerns enlarged drawing with tube bank heater section position among Fig. 1.

Fig. 4 is the vertical view of Fig. 3.

Fig. 5 is that the fluid bed sieve plate among Fig. 2 concerns enlarged drawing with tube bank heater section position.

Fig. 6 is the I enlarged drawing of Fig. 3.

Fig. 7 is the II enlarged drawing of Fig. 4.

Fig. 8 is the III enlarged drawing of Fig. 5.

Among the figure: Vibratingfluidbeddrier 1, tube bank heater 2; Base 1.1, bellows 1.2, drying chamber 1.3, fluid bed sieve plate 1.4; First section air inlet 1.2.1, second section air inlet 1.2.2, the 3rd section air inlet 1.2.3, the 4th section air inlet 1.2.4, baffle plate 1.2.5; Vertical tube bundle 2.1, transverse tube 2.2, steam manifold 2.3, diaphragm plate 2.4, steam inlet 2.5, condensation-water drain 2.6.

(5) specific embodiment

Referring to Fig. 1～2, the novel vibrating fluid bed dryer of the built-in tube bank heater that the utility model relates to mainly is made up of Vibratingfluidbeddrier 1 and tube bank heater 2 two parts.Described Vibratingfluidbeddrier 1 mainly is made up of base 1.1, bellows 1.2, drying chamber 1.3 and fluid bed sieve plate 1.4.Described bellows 1.2 upwards elasticity are connected on the base 1.1, and drying chamber 1.3 sealings are arranged at bellows 1.2 tops, and fluid bed sieve plate 1.4 is horizontally disposed with and the junction of described drying chamber 1.3 with bellows 1.2.

Be vertically installed with three baffle plate 1.2.5 in the described bellows 1.2, described three baffle plate 1.2.5 are separated into bellows 1.2 inner chambers between four sections dry sections successively, be respectively first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section, described first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section are respectively arranged with first section air inlet 1.2.1, second section air inlet 1.2.2, the 3rd section air inlet 1.2.3 and the 4th section air inlet 1.2.4.

Referring to Fig. 3, Fig. 4, Fig. 6 and Fig. 7, described tube bank heater 2 is vertically installed in the drying chamber 1.3 of described fluid bed sieve plate 1.4 tops, this tube bank heater 2 has four groups, four groups of tube bank heaters 2 are arranged at described second section dry section, the 3rd section dry section top in twos, and first section dry section and the 4th section dry section top are not provided with tube bank heater 2.

Referring to Fig. 5～8, described four groups of tube bank heaters 2 are taked to be bolted on two parallel cross bars in the drying chamber 1.Every group of tube bank heater 2 mainly is made up of vertical tube bundle 2.1, transverse tube 2.2 and steam manifold 2.3.Described transverse tube 2.2 has two, be arranged in parallel up and down, and described vertical tube bundle 2.1 vertically is connected between described up and down two transverse tubes 2.2, and each vertical tube of described vertical tube bundle 2.1 is structure ringwise, is mutual arranged crosswise between adjacent two vertical tubes of each of described vertical tube bundle 2.1.Described steam manifold 2.3 has two, about be arranged in parallel in the two ends, the left and right sides of described two transverse tubes 2.2.For preventing the heating steam short circuit, also be provided with diaphragm plate 2.4 in the steam manifold 2.3 therein, and steam inlet 2.5 and condensation-water drain 2.6 be set respectively, as Fig. 8 in this side that is provided with the steam manifold 2.3 of diaphragm plate 2.4.Condensed water in the steam manifold discharges external behind steam trap.

The vertical range of the described fluid bed sieve plate 1.4 of tube bank heater 2 distances from bottom is at 100mm ± 10mm.This required distance is suitable, and is too high, can reduce drying efficiency, too low, can influence fluidized state.Generally be controlled at can be substantially by the material submergence time to best.

Claims

1. the novel vibrating fluid bed dryer of a built-in tube bank heater, involving vibrations fluid bed dryer (1), described Vibratingfluidbeddrier (1) comprises by base (1.1), bellows (1.2), drying chamber (1.3) and fluid bed sieve plate (1.4), described bellows (1.2) upwards elasticity are connected on the base (1.1), drying chamber (1.3) sealing is arranged at bellows (1.2) top, fluid bed sieve plate (1.4) is horizontally disposed with and the junction of described drying chamber (1.3) with bellows (1.2), it is characterized in that:

Be vertically installed with three baffle plates (1.2.5) in the described bellows (1.2), described three baffle plates (1.2.5) are separated into bellows (1.2) inner chamber between four sections dry sections successively, be respectively first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section, described first section dry section, second section dry section, the 3rd section dry section and the 4th section dry section are respectively arranged with first section air inlet (1.2.1), second section air inlet (1.2.2), the 3rd section air inlet (1.2.3) and the 4th section air inlet (1.2.4);

Be vertically installed with tube bank heater (2) in the drying chamber (1.3) of described fluid bed sieve plate (1.4) top, this tube bank heater (2) has four groups, four groups of tube bank heaters (2) are arranged at described second section dry section, the 3rd section dry section top in twos, and first section dry section and the 4th section dry section top are not provided with tube bank heater (2).

2. the novel vibrating fluid bed dryer of a kind of built-in tube bank heater according to claim 1, it is characterized in that: described every group of tube bank heater (2) comprises vertical tube bundle (2.1), transverse tube (2.2) and steam manifold (2.3), described transverse tube (2.2) has two, be arranged in parallel up and down, described vertical tube bundle (2.1) vertically is connected in described up and down between two transverse tubes (2.2), each vertical tube of described vertical tube bundle (2.1) is structure ringwise, be mutual arranged crosswise between adjacent two vertical tubes of each of described vertical tube bundle (2.1), described steam manifold (2.3) has two, about be arranged in parallel in the two ends, the left and right sides of described two transverse tubes (2.2), and be provided with diaphragm plate (2.4) in the steam manifold (2.3) therein, and steam inlet (2.5) and condensation-water drain (2.6) are set respectively in this side that is provided with the steam manifold (2.3) of diaphragm plate (2.4).

2, the novel vibrating fluid bed dryer of a kind of built-in tube bank heater according to claim 1 is characterized in that: the vertical range of the described fluid bed sieve plate of described tube bank heater (2) distance from bottom (1.4) is at 100mm ± 10mm.