CN102435061A

CN102435061A - Roller for wood dust dryer

Info

Publication number: CN102435061A
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: 2012-05-02
Anticipated expiration: 2031-12-16
Also published as: CN102435061B

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 chip dryer

Technical field

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

Background technology

When utilizing wood chip to make various products, need earlier wood chip to be carried out drying, its moisture content is reduced in the scope that needs; Just can carry out next step processing, utilization, much human adopts air dry now, utilizes sunshine to carry out airing wood chip; Water evaporates in it is gone out, it is met the requirements, air dry is with low cost; It is fairly simple to operate; The place that but the air dry spended time is long, need is bigger, receive that effect of natural conditions is big, poor stability, and the wood chip amount of each drying is little, can not satisfy large-scale production and processing demand.

So people utilize dryer that wood chip is dried, it is than the oven dry floor space is little naturally, drying time short, and existing oven dry to wood chip is carried out in cylinder; Wood chip is put into cylinder, and cylinder is rotated, and utilizes hot-air that the wood chip in the cylinder is dried; But existing drying machine drum also has weak point: at first the time of oven dry still is long, secondly; Though the diameter of cylinder is bigger, the heat exchanger effectiveness of wood chip and hot gas amount low, that wood chip is come out in oven dry is little in the time of its oven dry, in case the wood chip that adds is too much; Then can cause oven dry inhomogeneous, the time of oven dry is elongated.

Summary of the invention

The purpose of this invention is to provide a kind of cylinder that is used for the wood chip dryer, its oven dry amount is big, and drying rate is fast.

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

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

As preferably, said cutting plate is 3-6.

As preferably, said cutting plate is 3.

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

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

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

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

As preferably, said heating plate is 12.

As preferably, the thickness of said inner housing is less than the thickness of said 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 big.

Description of drawings

Below in conjunction with accompanying drawing the present invention is done further explanation:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is an A-A cutaway view among Fig. 1;

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

Fig. 4 is cutting plate and the said acute angle a of heating pipe axial section sketch map.

Among the 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 merely preferred embodiment of the present invention, is not scope of the present invention is limited.

Embodiment sees accompanying

drawing

1,2,3,4, a kind of cylinder of wood chip dryer, the setting that whole cylinder tilts; Front end is lower than the rear end, is convenient to discharging, cylinder comprise have charging aperture 107, the shell 1 of discharging opening 108, be provided with in the said shell 1 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, is convenient to hot gas and passes through, and charging aperture 107 is arranged on the rear end of shell, is connected with feeding mechanism in the future; Be used for wood chip is imported in the shell, discharging opening is positioned at the front end of shell, is connected with discharging mechanism in the future, and the wood chip after the oven dry is transferred out; The hot air intake of heating pipe 2 is arranged on front end, and heat outlet is arranged on the rear end, like this, goes in the same direction from hot air intake popularity that gets into and the wood chip of coming in from charging aperture; Be convenient to heat exchange, shell is a double Shell, and it comprises inner housing 101, shell body 102; And the thickness of inner housing 101 is generally the 1/4-1/3 of shell body thickness less than the thickness of shell body 102, because shell body also will be considered the effect that is 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 that is communicated with space 103, and shell body 102 rear ends are provided with the exhaust outlet 105 that is communicated with space 103.Hot gas is discharged from exhaust outlet by air inlet 104 entering spaces 103, and inner housing is heated, and through inner housing wood chip is heated again, than existing mode of heating, has improved the drying efficiency of wood chip and the amount of each wood chip oven dry greatly.

Existing cylinder oven dry, wood chip all rolls in cylinder, in the time of its heat exchange; Just the exchange of the wood chip on surface and hot gas is abundant, and 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 this embodiment, feeding-distribution device is four; Have living space between adjacent two feeding-distribution devices, feeding-distribution device comprises a plurality of cutting plates 3, and cutting plate 3 one ends are fixedly connected with said heating pipe 2; The other end is fixedly connected with said inner housing 101, has drying cavity 4 between two adjacent cutting plates 3.General, cutting plate is to be fixedly connected through the mode of welding with heating pipe and inner housing, certainly, is not limited in this; See accompanying

drawing

2,3, as can be seen from the figure, feeding-distribution device comprises 3 cutting plates 3, has formed 3 sub-material chambeies 4; 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 makes that the heat exchange of wood chip and hot gas is more abundant, and being heated of wood chip is more even, and the heat energy of hot gas can be utilized fully; Reduce the hot gas waste, the cutting plate in this embodiment, the axial section a in an acute angle of itself and heating pipe 2 is general; The scope of acute angle a is: 10 °≤a≤30 ° wherein, is the best with a=15 °.Like this, wood chip gets into cylinder when carrying, and the cutting plate that is obliquely installed makes the wood chip spirals, more helps the heat exchange with hot gas, improves drying rate, makes wood chip be heated evenly, can improve heat exchanger effectiveness more than 10%.

For the drying effect of further raising wood chip, inner housing curves inwardly, protrudes and forms a plurality of heating plates 106, and the cross section of heating plate 106 is a circular arc; In this embodiment, heating plate 106 is 12, is distributed on the inner housing; Each heating plate both can be long one; Also can be to be divided into several sections form, in this embodiment, each heating plate be divided into several sections.These heating plates, one is the area that has increased with the wood chip heat exchange, has improved the heat exchange 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 ", can wood chip be broken up and come, dry fully.

Claims

1. the cylinder of a wood chip dryer; The shell (1) that comprises have charging aperture (107), discharging opening (108); Be provided with the heating pipe (2) of have hot air intake (201), heat outlet (202) in the said shell (1); Described heating pipe (2) tube wall is provided with a plurality of through holes (203); It is characterized in that: said shell is a double Shell, and it comprises inner housing (101), shell body (102), has living space between said inner housing (101), the shell body (102) (103); Said shell body (102) front end is provided with the air inlet (104) that is communicated with said space (103), and said shell body (102) rear end is provided with the exhaust outlet (105) that is communicated with said space (103).

2. the cylinder of a kind of wood chip dryer according to claim 1; It is characterized in that: be fixed with a plurality of feeding-distribution devices on said heating pipe (2) length direction; Said feeding-distribution device comprises a plurality of cutting plates (3); Said cutting plate (3) one ends are fixedly connected with said heating pipe (2), and the other end is fixedly connected with said inner housing (101), have drying cavity (4) between adjacent two cutting plates (3).

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

4. the cylinder of a kind of wood chip dryer according to claim 2 is characterized in that: said cutting plate (3) is 3.

5. the cylinder of a kind of wood chip dryer according to claim 2 is characterized in that: the axial section a in an acute angle of said cutting plate (3) and said heating pipe (2).

6. the cylinder of a kind of wood chip dryer according to claim 5 is characterized in that: the scope of said acute angle a is: 10 °≤a≤30 °.

7. the cylinder of a kind of wood chip dryer according to claim 1 is characterized in that: said inner housing (101) curves inwardly, protrudes formation a plurality of heating plates (106).

8. the cylinder of a kind of wood chip dryer according to claim 7 is characterized in that: the cross section of said heating plate (106) is a circular arc.

9. the cylinder of a kind of wood chip dryer according to claim 7 is characterized in that: said heating plate (106) is 12.

10. the cylinder of a kind of wood chip dryer according to claim 1 is characterized in that: the thickness of said inner housing (101) is less than the thickness of said shell body (102).