CN209230206U - A kind of biomass fuel pellet drying device - Google Patents

Abstract

The utility model relates to a kind of biomass fuel pellet drying devices, including casing, rotating cylinder is vertically provided in casing, several stomatas are provided on the barrel of rotating cylinder both ends, it is provided with upper layer stomata and lower layer's stomata, sieve plate assembly is provided in rotating cylinder and particle is slowly moved down in rotating cylinder；Casing upper surface is provided with the feed hopper being connected to rotating cylinder, and bottom of shell is provided with the tapping channel being connected to rotating cylinder, and tapping channel is connected to the blow tank that casing outer wall is arranged in, and the motor that shaft extends in casing is additionally provided on casing；Casing lower end is provided with the air-heater that discharge pipe extends in casing, and casing upper end is provided in connection casing and extraneous exhaust pipe.The utility model particle is uniform with hot-air in rotating cylinder, comes into full contact with, and time of contact is extended, so that particle drying degree is more uniform, is not susceptible to the problems such as going mouldy in the follow-up process；Utilization efficiency of heat energy can be effectively improved, has the characteristics that low energy consumption, energy conservation and environmental protection.

Description

A kind of biomass fuel pellet drying device

Technical field

The utility model relates to biomass fuel pre-processing device field more particularly to a kind of biomass fuel pellet are dry Device.

Background technique

Prepared in Fuel Process using biomass materials such as stalks, generally require to the particulate biomass fuel of preparation into Row is dried, and generally carries out drying drying to it using horizontal Drying in the prior art, but during the drying process often In the presence of because particle drying degree caused by uneven heating it is inconsistent, the problems such as going mouldy during subsequent storage etc., together When, the energy consumption for drying of Drying is often higher, is not suitable for energy conservation and environmental protection.

Accordingly, it is desirable to provide a kind of novel device is set forth above to overcome the problems, such as.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, and it is dry to provide a kind of biomass fuel pellet Device by the way that rotating cylinder is arranged in casing, while moves down particle slowly in rotating cylinder, makes drying using lower air inlet mode Hot wind and particle carry out heat exchange, solve in the prior art the problem of drying efficiency is low, uneven drying.

The utility model is achieved through the following technical solutions:

A kind of biomass fuel pellet drying device, including casing are vertically provided with rotating cylinder, rotating cylinder both ends in casing It is provided with several stomatas on barrel, that is, is provided with upper layer stomata and lower layer's stomata, is provided with sieve plate assembly in rotating cylinder and makes Particle can slowly move down in rotating cylinder；Casing upper surface is provided with the feed hopper being connected to rotating cylinder, and bottom of shell is provided with The tapping channel being connected to rotating cylinder, and tapping channel is connected to the blow tank that casing outer wall is arranged in, and is additionally provided on casing Shaft extends to the motor in casing, and motor is for driving rotating cylinder to rotate；Casing lower end is provided with discharge pipe and extends to casing Interior air-heater, casing upper end are provided in connection casing and extraneous exhaust pipe.

In above-mentioned technical proposal, particle enters in rotating cylinder from feed hopper, and sieve plate assembly makes particle in rotating cylinder Increased resident time so that enter in casing below the casing, then by lower layer's stomata enter the hot-air of rotating cylinder sufficiently with Particle heat exchange, achieve the purpose that it is dry, meanwhile, reenter casing into the hot-air in rotating cylinder from upper layer stomata, most It is left afterwards by exhaust pipe；The rotation of rotating cylinder enables to particle and hot-air more sufficiently, more uniformly to contact, to make It obtains drying efficiency to be improved, and particle drying is uniform；The setting of upper layer stomata and lower layer's stomata, can be in casing and rotating cylinder Between type at hot-air circulation, improve utilization efficiency of heat energy.

Compared with prior art, the utility model has following usefulness:

1) particle is uniform with hot-air in rotating cylinder, comes into full contact with, and time of contact is extended, so that particle drying The problems such as degree is more uniform, is not susceptible to mildew in the follow-up process；

2) utilization efficiency of heat energy can be effectively improved, has the characteristics that low energy consumption, energy conservation and environmental protection.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the embodiments of the present invention.

In figure: casing 1, rotating cylinder 2, feed hopper 3, tapping channel 4, blow tank 5, motor 6, discharge pipe 7, air-heater 8, row Tracheae 9, feeder 10, discharging portion 11, gear 12, upper conical sieve 13, sieve plate 14, inferior pyramidal sieve 15, blanking plate 16, dirt-excluding groove 17。

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

Referring to Fig. 1, a kind of biomass fuel pellet drying device, including casing 1, rotation is vertically provided in casing 1 Cylinder 2 is provided with several stomata (not shown) on 2 both ends barrel of rotating cylinder, that is, is provided with upper layer stomata and lower layer's stomata, rotates Being provided with sieve plate assembly in cylinder 2 enables particle slowly to move down in rotating cylinder 2；1 upper surface of casing be provided with in rotating cylinder 2 The feed hopper 3 of connection, 1 bottom of casing is provided with the tapping channel 4 being connected to in rotating cylinder 2, and tapping channel 4 and setting are in machine The blow tank 5 of 1 outer wall of shell is connected to, and particle enters in rotating cylinder 2 from feed hopper 3, then by tapping channel 4, finally from discharging 5 separating device of slot is collected；The motor 6 that shaft extends in casing 1 is additionally provided on casing 1, motor 6 is for driving rotating cylinder 2 rotations；1 lower end of casing is provided with the air-heater 8 that discharge pipe 7 extends in casing 1, is provided with strainer in discharge pipe 7 and (does not show Prevent particle from entering in air-heater 8 out), 1 upper end of casing is provided with extraneous exhaust pipe 9 in connection casing 1, and hot-air is under End enters casing 1, enters in rotating cylinder 2 from lower layer's stomata, is entering casing 1 from upper layer stomata, leaving finally by exhaust pipe 9 Device.

In above-described embodiment, particle enters in rotating cylinder 2 from feed hopper 3, and sieve plate assembly makes particle in rotating cylinder 2 Increased resident time, so that entering in casing 1 below casing 1, then abundant by the hot-air that lower layer's stomata enters rotating cylinder 2 With particle heat exchange, achieve the purpose that it is dry, meanwhile, reenter casing into the hot-air in rotating cylinder 2 from upper layer stomata 1, it is left finally by exhaust pipe 9；The rotation of rotating cylinder 2 enables to particle and hot-air more sufficiently, more uniformly to contact, So that drying efficiency is improved, and particle drying is uniform；The setting of upper layer stomata and lower layer's stomata, can be in casing 1 Hot-air circulation is formed between rotating cylinder 2, improves utilization efficiency of heat energy.

Preferably, in order to realize the rotation connection between rotating cylinder 2 and casing 1,2 upper end of rotating cylinder is to rotate with casing 1 The feeder 10 of connection, feeder 10 are located at the outlet of feed hopper 3 lower section；2 lower end of rotating cylinder is the discharging being rotatablely connected with casing 1 Portion 11, discharging portion 11 are located at the top of tapping channel 4.

Preferably, motor 6 drives rotating cylinder 2 to rotate by gear 12, and 2 outer wall of rotating cylinder, which is provided with, to be engaged with gear 12 Ring tooth band (not shown), 6 turns of shaft driven gears 12 of motor rotate, and drive rotating cylinder with engaging for tooth band by gear 12 2 rotations, particularly, the setting of tooth band does not influence the setting of stomata.

Preferably, sieve plate assembly includes the two upper conical sieves 13 for being located at 2 upper/lower terminal of rotating cylinder, upper conical sieve 13 Compass screen surface raises upward, and upper conical sieve 13 is connect with 2 inner wall of rotating cylinder and its compass screen surface is provided with several first sieve pore (not shown), from The particle that feed hopper 3 enters rotating cylinder 2 is spread around on upper conical sieve 13, while being moved down by the first sieve pore, special Not, hot-air can equally be moved up by the first sieve pore, to realize the convective heat exchange of hot-air and particle.

Preferably, residence time of the particle in rotating cylinder 2, sieve plate assembly further include being obliquely installed in order to further increase Several sieve plates 14 between two upper conical sieves 13, sieve plate 14 is fixed on 2 inner wall of rotating cylinder, and the fixing end of adjacent sieve plate 14 Relatively, so that all sieve plates 14 form serpentine channel in rotating cylinder 2, the second sieve pore is provided on 14 compass screen surface of sieve plate and (is not shown Out), particle is in the case where serpentine channel is slow with particularly, particle will not be by the second sieve pore, and hot-air can pass through, in this way So that time for contacting with particle of hot-air lengthens, drying efficiency and uniformly it is improved, wherein the quantity of sieve plate 14 exists 3~5 groups the most suitable.

It is preferably located at below the upper conical sieve 13 of lower section and is additionally provided with inferior pyramidal sieve 15, it is downward that inferior pyramidal sieves 15 compass screen surfaces Recess, inferior pyramidal sieve 15 is connect with 2 inner wall of rotating cylinder and its compass screen surface is provided with several third sieve pore (not shown), inferior pyramidal sieve 15 Center is provided with the through-hole being connected to discharging portion 11, and the setting of inferior pyramidal sieve 15 is to separate normal granules and moving down Broken or some other fine particles are hit in the process, and particularly, the particle of normal size cannot be smaller by third sieve pore Crushed particles and other fine particles 2 lower part of rotating cylinder can be entered by the particle of third sieve pore, then by third sieve pore Enter 1 bottom of casing by lower layer's stomata；Normal granules then pass through discharge end and enter tapping channel 4.

Preferably, in order to stop improper bulky grain to enter in device, 3 lower end of feed hopper is provided with blanking plate 16, under Blanking hole (not shown) is provided on flitch 16, normal granules can pass through blanking hole.

Preferably, normal granules leave rotating cylinder 2 in order to prevent, and stomata is separately positioned on the upper conical sieve 13 being located above On and inferior pyramidal sieve under.

Preferably, the first screen-aperture, blanking hole aperture, the second screen-aperture, air vent aperture and third screen-aperture according to It is secondary to be gradually reduced, and 1 bottom of casing is provided with the dirt-excluding groove 17 being in communication with the outside, lesser crushed particles and other fine particles It is recovered by dirt-excluding groove 17.

When the present embodiment is in use,

Start motor 6 and air-heater 8, particle is added into feed hopper 3, rotating cylinder 2 is moved up under normal granules, is successively led to Cross it is upper conical sieve 13, several sieve plates 14 formed serpentine channel, it is upper conical sieve 13 and inferior pyramidal sieve 15, in the process with heat Air carries out heat exchange, finally enters tapping channel 4, is collected from blow tank 5.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (9)

1. a kind of biomass fuel pellet drying device, which is characterized in that including casing, it is vertically provided with rotating cylinder in casing, It is provided with several stomatas on the barrel of rotating cylinder both ends, sieve plate assembly is provided in rotating cylinder, particle is delayed in rotating cylinder Slowly it moves down；Casing upper surface is provided with the feed hopper being connected to rotating cylinder, and bottom of shell is provided with the discharging being connected to rotating cylinder Channel, and tapping channel is connected to the blow tank that casing outer wall is arranged in, and shaft is additionally provided on casing and is extended in casing Motor, motor is for driving rotating cylinder to rotate；Casing lower end is provided with the air-heater that discharge pipe extends in casing, casing upper end It is provided in connection casing and extraneous exhaust pipe.

2. a kind of biomass fuel pellet drying device according to claim 1, it is characterised in that: rotating cylinder upper end be with The feeder of casing rotation connection, feeder are located at below feeding hopper exit；Rotating cylinder lower end be with casing be rotatablely connected out Material portion, discharging portion are located at the top of tapping channel.

3. a kind of biomass fuel pellet drying device according to claim 1, it is characterised in that: motor is driven by gear Dynamic rotating cylinder rotation, rotation drum outer wall are provided with the ring tooth band engaged with gear.

4. a kind of biomass fuel pellet drying device according to claim 1, it is characterised in that: sieve plate assembly includes point Not Wei Yu rotating cylinder upper/lower terminal two upper conical sieves, upper conical sieve compass screen surface raises upward, and upper conical sieve connects with rotating cylinder inner wall It connects and its compass screen surface is provided with several first sieve pores.

5. a kind of biomass fuel pellet drying device according to claim 4, it is characterised in that: sieve plate assembly further includes Several sieve plates being inclined between two upper conical sieves, sieve plate are fixed on rotating cylinder inner wall, and the fixing end of adjacent sieve plate Relatively, so that all sieve plates form serpentine channel in rotating cylinder, the second sieve pore is provided on sieve plate compass screen surface.

6. a kind of biomass fuel pellet drying device according to claim 5, it is characterised in that: underlying epicone Shape sieve lower section is additionally provided with inferior pyramidal sieve, and inferior pyramidal sieves compass screen surface to lower recess, and inferior pyramidal sieve is connect with rotating cylinder inner wall and it is sieved Face is provided with several third sieve pores, and inferior pyramidal sieve center is provided with the through-hole being connected to discharging portion.

7. a kind of biomass fuel pellet drying device described according to claim 1~any one of 6, it is characterised in that: into Hopper lower end is provided with blanking plate, is provided with blanking hole on blanking plate.

8. a kind of biomass fuel pellet drying device according to claim 7, it is characterised in that: stomata is separately positioned on On the upper conical sieve being located above and under inferior pyramidal sieve.

9. a kind of biomass fuel pellet drying device according to claim 8, it is characterised in that: the first screen-aperture, Blanking hole aperture, the second screen-aperture, air vent aperture and third screen-aperture are successively gradually reduced, and bottom of shell be provided with The dirt-excluding groove of external world's connection.