CN209295544U

CN209295544U - Hot air fluidized bed grain drying device

Info

Publication number: CN209295544U
Application number: CN201822187476.7U
Authority: CN
Inventors: 司崇殿; 宋文路; 刘国栋; 王宁; 金辉
Original assignee: Jining University
Current assignee: Jining University
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2019-08-23
Anticipated expiration: 2028-12-25

Abstract

The utility model belongs to grain processing equipment field, more particularly to a kind of hot air fluidized bed grain drying device, including upper bed body and lower bed body, it further include air blower, air heater, screw conveyor, air-introduced machine and cyclone dust collectors, the bottom of lower bed body is further fixed on vibrating motor, and backing plate is fixed with by one group of vibration isolation spring, the inside of lower bed body is equipped with three sieve plates, the lower section of the sieve plate of bottom is equipped with the first wind-distributing pipe, air blower is sequentially connected air heater and the first wind-distributing pipe by appendix, the lower end of lower bed body is equipped with product outlet, the second wind-distributing pipe is fixed at the top of screw conveyor, second wind-distributing pipe is connected to screw conveyor inner cavity, the feed inlet of the discharge port connection upper bed body of screw conveyor, the top of upper bed body is equipped with multiple exhaust outlets, each exhaust outlet passes through appendix and is sequentially connected cyclone dust collectors, air inducing Machine and the second wind-distributing pipe.The utility model structure is simple, to the uniform drying of grain preferably, drying efficiency it is higher.

Description

Hot air fluidized bed grain drying device

Technical field

The utility model relates to a kind of hot air fluidized bed grain drying devices, belong to grain processing equipment field.

Background technique

China is grain-production big country in the world, about 500,000,000 tons of gross annual output amount.After China's grain harvest in threshing, dry in the air Shine, storage, transport, processing, the loss during consumption etc. it is serious, considerably beyond standard as defined in FAO (Food and Agriculture Organization of the United Nation), Especially during sunning, traditional artificial mode of tedding is limited to climate reasons, and grain has little time to dry or be not up to Safe moisture causes the losses such as mildew, germination to occupy the very big specific gravity of grain loss, for this purpose, some grain heat-drying machinery are met the tendency of And it gives birth to.But existing grain heat-drying is mechanical or structure is complicated, production, maintenance cost is higher or result is simple, grain Uneven drying, grain drying low efficiency.

Utility model content

According to the above-mentioned deficiencies in the prior art, technical problem to be solved by the utility model is: providing a kind of structure letter Single, grain drying uniformity preferably, the higher hot air fluidized bed grain drying device of grain drying efficiency.

Hot air fluidized bed grain drying device described in the utility model, including upper bed body and lower bed body, further include air blast The bottom of machine, air heater, screw conveyor, air-introduced machine and cyclone dust collectors, lower bed body is fixed with by one group of vibration isolation spring Backing plate, the bottom of lower bed body are further fixed on vibrating motor, and the inside of lower bed body is equipped with three corresponding sieve plates, the sieve of bottom The lower section of plate is equipped with the first wind-distributing pipe, and several jet thrusts are fixed on the first wind-distributing pipe, and the gas outlet of air blower is defeated by first Tracheae connects the air inlet of air heater, and the gas outlet of air heater connects the first wind-distributing pipe by the second appendix, under The lower end of bed body is equipped with product outlet corresponding with the sieve plate of bottom, is fixed with the second cloth wind at the top of screw conveyor Pipe, the top of screw conveyor are equipped with several ventholes being connected to the second wind-distributing pipe, and the discharge port of screw conveyor connects Feed inlet in bed body, the top of upper bed body are equipped with multiple exhaust outlets, and each exhaust outlet passes through third appendix connection whirlwind and removes The air inlet of dirt device, the gas outlet of cyclone dust collectors connect the air inlet of air-introduced machine, the outlet of air-introduced machine by the 4th appendix Mouth is connected to the second wind-distributing pipe by the 5th appendix.

The top of above-mentioned screw conveyor is equipped with chimney, convenient for the discharge of exhaust gas.

Above-mentioned chimney is located at the feed opening of screw conveyor, makes exhaust gas trend with material conveying direction on the contrary, effectively Improve the pre-heat effect of exhaust gas.

Possessed beneficial effect is the utility model compared with prior art:

Hot air fluidized bed grain drying device described in the utility model, structure is simple, is equipped with vibration isolation spring and vibrating motor, The grain on sieve plate can be made to raise up on the move, also, extra exhaust gas enters screw conveyor and preheats to grain, effectively Improve the uniformity of grain drying and the efficiency of grain drying.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

In figure: 1, backing plate；2, vibration isolation spring；3, product outlet；4, the first wind-distributing pipe；5, jet thrust；6, sieve plate；7, it leaves the bed Body；8, impurity discharging port；9, upper bed body；10, cyclone dust collectors；11, the 4th appendix；12, exhaust outlet；13, air-introduced machine；14, third Appendix；15, the 5th appendix；16, the second wind-distributing pipe；17, venthole；18, screw conveyor；19, chimney；20, feed opening； 21, discharge port；22, feed inlet；23, vibrating motor；24, the second appendix；25, air heater；26, the first appendix；27, Air blower.

Specific embodiment

The embodiments of the present invention are described further with reference to the accompanying drawing:

As shown in Figure 1, hot air fluidized bed grain drying device described in the utility model, including upper bed body 9 and lower bed body 7, it further include air blower 27, air heater 25, screw conveyor 18, air-introduced machine 13 and cyclone dust collectors 10, the bottom of lower bed body 7 Portion is fixed with backing plate 1 by one group of vibration isolation spring 2, and the bottom of lower bed body 7 is further fixed on vibrating motor 23, and the inside of lower bed body 7 is set There are three corresponding sieve plates 6, the lower section of the sieve plate 6 of bottom is equipped with the first wind-distributing pipe 4, if being fixed on the first wind-distributing pipe 4 Dry jet thrust 5, the gas outlet of air blower 27 connect the air inlet of air heater 25, air heater by the first appendix 26 25 gas outlet connects the first wind-distributing pipe 4 by the second appendix 24, and the lower end of lower bed body 7 is equipped with 6 phase of sieve plate with bottom Corresponding product outlet 3, the top of screw conveyor 18 are fixed with the second wind-distributing pipe 16, if the top of screw conveyor 18 is equipped with The dry venthole 17 being connected to the second wind-distributing pipe 16, the discharge port 21 of screw conveyor 18 connect the feed inlet 22 on upper bed body 9, The top of upper bed body 9 is equipped with multiple exhaust outlets 12, and each exhaust outlet 12 connects cyclone dust collectors 10 by third appendix 14 Air inlet, the gas outlet of cyclone dust collectors 10 connect the air inlet of air-introduced machine 13 by the 4th appendix 11, and air-introduced machine 13 goes out Port is connected to the second wind-distributing pipe 16 by the 5th appendix 15.

In preferred embodiment: the top of above-mentioned screw conveyor 18 is equipped with chimney 19, convenient for the discharge of exhaust gas；Above-mentioned Chimney 19 is located at the feed opening 20 of screw conveyor 18, makes exhaust gas trend with material conveying direction on the contrary, effectively improving exhaust gas Pre-heat effect.

In use, screw conveyor 18 is added from feed opening 20 in grain to be dried, in the effect of screw conveyor 18 Under, grain is fallen on sieve plate 6 through discharge port 21, feed inlet 22, in vibration isolation spring 2 and under the action of vibrating motor 23, grain to It constantly raises up while lower mobile, under the action of air blower 27, air enters air heater 25 and heated, after heating Air enters the first wind-distributing pipe 4, and is sprayed by jet thrust 5, and the hot gas of ejection passes through sieve plate 6 and dries to grain, dry Grain afterwards is discharged from product outlet 3, and the exhaust gas after heat exchange enters cyclone dust collectors 10, the grain having in exhaust gas through exhaust outlet 12 It eats blighted grain, dust etc. to be discharged from the impurity discharging port 8 of cyclone dust collectors 10, exhaust gas is under the action of air-introduced machine 13 through the 5th appendix 15, the second wind-distributing pipe 16 enters in screw conveyor 18 with venthole 17, preheats to grain to be dried, after exchanging heat again Exhaust gas be discharged through chimney 19.

Hot air fluidized bed grain drying device described in the utility model, structure is simple, is equipped with vibration isolation spring 2 and vibrating motor 23, the grain on sieve plate 6 can be made to raise up on the move, also, extra exhaust gas enters screw conveyor 18 and carries out in advance to grain Heat effectively increases the uniformity of grain drying and the efficiency of grain drying.

Claims

1. a kind of hot air fluidized bed grain drying device, including upper bed body (9) and lower bed body (7), it is characterised in that: further include drum Blower (27), air heater (25), screw conveyor (18), air-introduced machine (13) and cyclone dust collectors (10), lower bed body (7) Bottom is fixed with backing plate (1) by one group of vibration isolation spring (2), and the bottom of lower bed body (7) is further fixed on vibrating motor (23), lower bed body (7) inside is equipped with three corresponding sieve plates (6), and the lower section of the sieve plate (6) of bottom is equipped with the first wind-distributing pipe (4), and first It is fixed on wind-distributing pipe (4) several jet thrusts (5), the gas outlet of air blower (27) connects air by the first appendix (26) and adds The gas outlet of the air inlet of hot device (25), air heater (25) connects the first wind-distributing pipe (4) by the second appendix (24), under The lower end of bed body (7) is equipped with product outlet (3) corresponding with sieve plate (6) of bottom, and the top of screw conveyor (18) is solid Surely have the second wind-distributing pipe (16), the top of screw conveyor (18) is equipped with several ventholes being connected to the second wind-distributing pipe (16) (17), the feed inlet (22) in discharge port (21) connection upper bed body (9) of screw conveyor (18), upper bed body are set at the top of (9) Having multiple exhaust outlets (12), each exhaust outlet (12) connects the air inlet of cyclone dust collectors (10) by third appendix (14), The gas outlet of cyclone dust collectors (10) connects the air inlet of air-introduced machine (13) by the 4th appendix (11), and air-introduced machine (13) goes out Port passes through the 5th appendix (15) connection the second wind-distributing pipe (16).

2. hot air fluidized bed grain drying device according to claim 1, it is characterised in that: the screw conveyor (18) top is equipped with chimney (19).

3. hot air fluidized bed grain drying device according to claim 2, it is characterised in that: the chimney (19) is located at At the feed opening (20) of screw conveyor (18).