CN102435061B

CN102435061B - Roller for wood dust dryer

Info

Publication number: CN102435061B
Application number: CN2011104225227A
Authority: CN
Inventors: 倪建中
Original assignee: HUZHOU NANXUN ZHENJIAN ELECTROMECHANICAL EQUIPMENT CO Ltd
Current assignee: Nantong Wealth Machinery Technical Co., Ltd.
Priority date: 2011-12-16
Filing date: 2011-12-16
Publication date: 2013-11-27
Anticipated expiration: 2031-12-16
Also published as: CN102435061A

Abstract

The invention discloses a roller for a wood dust dryer. The roller comprises a shell which is provided with a feeding hole and a discharging hole, wherein a hot air pipe provided with a hot air inlet and a hot air outlet is arranged in the shell; the pipe wall of the hot air pipe is provided with a plurality of through holes; the shell is a double-layer shell which comprises an inner shell and an outer shell; a space is formed between the inner shell and the outer shell; the front end of the outer shell is provided with an air inlet communicated with the space; and the back end of the shell is provided with an exhaust port communicated with the space. The roller provided by the invention has the advantages of high drying speed and large amount of wood dust dried at one time.

Description

A kind of cylinder of wood dust dryer

Technical field

The present invention relates to wood chip drying technology field, relate in particular a kind of cylinder for wood dust dryer.

Background technology

When utilizing wood chip to make various products, need first wood chip to be carried out to drying, its moisture content is reduced in the scope needed, just can carry out next step processing, utilize, now a lot of people adopt natural drying, utilize sunshine to carry out airing wood chip, moisture in it is evaporated away, it is met the requirements, natural drying with low cost, operate fairly simple, but natural drying spended time is long, the place needed is larger, be subjected to effect of natural conditions large, poor stability, and each dry wood chip amount is little, can not meet large-scale production and processing demand.

So people utilize dryer to dry wood chip, it is little than naturally drying floor space, drying time is short, existing oven dry to wood chip is carried out in cylinder, wood chip is put into to cylinder, cylinder is rotated, utilize hot-air to dry the wood chip in cylinder, but, existing drying machine drum also has weak point: the time of at first drying or long, secondly, although the diameter of cylinder is larger, but in the time of its oven dry, the heat exchanger effectiveness of wood chip and hot gas is low, the amount of drying out wood chip is little, in case the wood chip added is too much, can cause oven dry inhomogeneous, the time of drying is elongated.

Summary of the invention

The purpose of this invention is to provide a kind of cylinder for wood dust dryer, its oven dry amount is large, and drying rate is fast.

In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: a kind of cylinder of wood dust dryer, comprise have charging aperture, the shell of discharging opening, in described shell, be provided with have hot air intake, the heating pipe of heat outlet, described heating pipe tube wall is provided with a plurality of through holes, described shell is double Shell, it comprises inner housing, shell body, between described inner housing, shell body, have living space, described shell body front end is provided with the air inlet be communicated with described space, and described shell body rear end is provided with the exhaust outlet be communicated with described space.

As preferably, on described heating pipe length direction, be fixed with a plurality of feeding-distribution devices, described feeding-distribution device comprises a plurality of cutting plates, and described cutting plate one end is fixedly connected with described heating pipe, the other end is fixedly connected with described inner housing, has drying cavity between two adjacent cutting plates.

As preferably, described cutting plate is 3-6.

As preferably, described cutting plate is 3.

As preferably, the axial section of described cutting plate and described heating pipe a in an acute angle.

As preferably, the scope of described acute angle a is: 10 °≤a≤30 °.

As preferably, described inner housing curves inwardly, protrudes and forms a plurality of heating plates.

As preferably, the cross section of described heating plate is circular arc.

As preferably, described heating plate is 12.

As preferably, the thickness of described inner housing is less than the thickness of described shell body.

Beneficial effect of the present invention is: cylinder of the present invention, its drying rate is fast, the wood chip amount of first drying is large.

The accompanying drawing explanation

The present invention is described further below in conjunction with accompanying drawing:

Fig. 1 is structural representation of the present invention;

Fig. 2 is A-A cutaway view in Fig. 1;

Fig. 3 is that cutting plate is fixed on the stereogram on heating pipe;

Fig. 4 is cutting plate and the described acute angle a of heating pipe axial section schematic diagram.

In figure:

The 1-shell;

The 101-inner housing;

The 102-shell body;

The 103-space;

The 104-air inlet;

The 105-exhaust outlet;

The 106-heating plate, 107-charging aperture, 108-discharging opening;

The 2-heating pipe; The 201-hot air intake, 202-heat outlet, 203-through hole;

The 3-cutting plate;

4-sub-material chamber.

The specific embodiment

The following stated is only preferred embodiment of the present invention, not scope of the present invention is limited.

Embodiment, see accompanying

drawing

1, 2, 3, 4, a kind of cylinder of wood dust dryer, the setting of whole drum-inclined, front end is lower than rear end, be convenient to discharging, cylinder comprises having charging aperture 107, the shell 1 of discharging opening 108, in described shell 1, be provided with and have hot air intake 201, the heating pipe 2 of heat outlet 202, the tube wall of heating pipe is provided with through hole 203, being convenient to hot gas passes through, charging aperture 107 is arranged on the rear end of shell, with feeding mechanism, be connected in the future, for wood chip is inputted in shell, discharging opening is positioned at the front end of shell, with discharging mechanism, be connected in the future, wood chip after drying is transferred out, the hot air intake of heating pipe 2 is arranged on front end, heat outlet is arranged on rear end, like this, from the hot air intake popularity entered and the wood chip of coming in from charging aperture, go in the same direction, be convenient to heat exchange, shell is double Shell, it comprises inner housing 101, shell body 102, and the thickness of inner housing 101 is less than the thickness of shell body 102, be generally the 1/4-1/3 of shell body thickness, because shell body also will be considered the effect be incubated, so thicker, and inner housing mainly is used for heating wood chip, so can be thinner.

Between inner housing 101, shell body 102, have living space 103, shell body 102 front ends are provided with the air inlet 104 be communicated with space 103, and shell body 102 rear ends are provided with the exhaust outlet 105 be communicated with space 103.Hot gas enters space 103 by air inlet 104, discharges from exhaust outlet, inner housing is heated, then by inner housing, wood chip is heated, and than existing mode of heating, has improved greatly the drying efficiency of wood chip and the amount that each wood chip is dried.

Existing roller drying, wood chip all rolls in cylinder, in the time of its heat exchange, be that surperficial wood chip and hot gas exchanges fully, most heat energy all has been wasted, so in order further to improve drying efficiency and oven dry amount, on heating pipe 2 length directions, be fixed with a plurality of feeding-distribution devices, in present embodiment, feeding-distribution device is four, between adjacent two feeding-distribution devices, have living space, feeding-distribution device comprises a plurality of cutting plates 3, cutting plate 3 one ends are fixedly connected with described heating pipe 2, the other end is fixedly connected with described inner housing 101, between two adjacent cutting plates 3, has drying cavity 4.General, cutting plate is to be fixed and to be connected by the mode of welding with heating pipe and inner housing, certainly, be not limited in this, see accompanying

drawing

2, 3, as can be seen from the figure, feeding-distribution device comprises 3

cutting plates

3, 3 sub-material chambeies 4 have been formed, like this, three sub-material chambeies just in cylinder, have been formed, than cylinder in the past, in the heating wood chip, wood chip is distributed in three sub-material chambeies, so just make the heat exchange of wood chip and hot gas more abundant, being heated of wood chip is more even, the heat energy of hot gas can be utilized fully, reduce the hot gas waste, cutting plate in present embodiment, the axial section a in an acute angle of itself and heating pipe 2, general, the scope of acute angle a is: 10 °≤a≤30 °, wherein, take a=15 ° as best.Like this, wood chip enters cylinder when carrying, and the cutting plate be obliquely installed makes the wood chip spiral advance, and more is conducive to the heat exchange with hot gas, improves drying rate, makes wood chip be heated evenly, and can improve heat exchanger effectiveness more than 10%.

In order further to improve the drying effect of wood chip, inner housing curves inwardly, protrudes a plurality of heating plates 106 of formation, the cross section of heating plate 106 is circular arc, in present embodiment, heating plate 106 is 12, is distributed on inner housing, each heating plate can be both long one, can be also to be divided into the form of several sections, in present embodiment, each heating plate be divided into several sections.These heating plates, one is the area increased with the wood chip heat exchange, has improved heat transfer effect, accelerated drying rate, and these heating plates can also be in rollers roll, can play the effect that prevents that wood chip from " uniting ", wood chip can be broken up and come, dry fully.

Claims

1. the cylinder of a wood dust dryer, comprise and have charging aperture (107), the shell (1) of discharging opening (108), in described shell (1), be provided with and have hot air intake (201), the heating pipe (2) of heat outlet (202), described heating pipe (2) tube wall is provided with a plurality of through holes (203), it is characterized in that: described shell is double Shell, it comprises inner housing (101), shell body (102), described inner housing (101), between shell body (102), have living space (103), described shell body (102) front end is provided with the air inlet (104) be communicated with described space (103), described shell body (102) rear end is provided with the exhaust outlet (105) be communicated with described space (103), on described heating pipe (2) length direction, be fixed with a plurality of feeding-distribution devices, described feeding-distribution device comprises a plurality of cutting plates (3), described cutting plate (3) one ends are fixedly connected with described heating pipe (2), the other end is fixedly connected with described inner housing (101), between adjacent two cutting plates (3), has drying cavity (4), described inner housing (101) curves inwardly, protrude and form a plurality of heating plates (106), the axial section a in an acute angle of described cutting plate (3) and described heating pipe (2).

2. the cylinder of a kind of wood dust dryer according to claim 1 is characterized in that: described cutting plate (3) is 3-6.

3. the cylinder of a kind of wood dust dryer according to claim 2, it is characterized in that: described cutting plate (3) is 3.

4. the cylinder of a kind of wood dust dryer according to claim 1, it is characterized in that: the scope of described acute angle a is: 10 °≤a≤30 °.

5. the cylinder of a kind of wood dust dryer according to claim 1, it is characterized in that: the cross section of described heating plate (106) is circular arc.

6. the cylinder of a kind of wood dust dryer according to claim 5, it is characterized in that: described heating plate (106) is 12.

7. the cylinder of a kind of wood dust dryer according to claim 1, it is characterized in that: the thickness of described inner housing (101) is less than the thickness of described shell body (102).