CN211476581U

CN211476581U - Hot-blast formula saw-dust drying device based on waste material boundary layer firewood

Info

Publication number: CN211476581U
Application number: CN201922021312.1U
Authority: CN
Inventors: 袁志雄; 晏才文
Original assignee: Jingzhou Huarong Active Carbon Co ltd
Current assignee: Jingzhou Huarong Active Carbon Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-11
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a hot-air type wood chip drying device based on waste material boundary bark firewood, which belongs to the technical field of active carbon processing, and comprises a cylinder body, a blanking channel, a jacket, a hot air inlet and a hot air outlet, wherein the hot air inlet and the hot air outlet are respectively positioned at two ends of the cylinder body, and a filter screen is arranged on the hot air outlet; the blanking channel is positioned at the top of the cylinder and is close to the hot air inlet; the barrel is a horizontal barrel, the longitudinal section of the barrel is isosceles trapezoid, one end of the barrel is small-caliber, the other end of the barrel is large-caliber, the hot air inlet is positioned in the middle of the small caliber, and the hot air outlet is positioned above the middle of the large caliber; the jacket is provided with a heat medium inlet and a heat medium outlet for the heat medium to enter and exit, and the heat medium is gas generated by burning the waste bark firewood; be provided with the discharge port on the barrel, the discharge port is located the barrel bottom and is close to heavy-calibre one end, has solved the uneven problem of current drying device saw-dust thermally prone.

Description

Hot-blast formula saw-dust drying device based on waste material boundary layer firewood

Technical Field

The utility model relates to an active carbon processing technology field, more specifically say, it relates to a hot-blast formula saw-dust drying device based on waste material boundary bark firewood.

Background

China belongs to a large country with abundant wood resources, a large number of branches and wood chips are not utilized every year, if waste materials can be changed into valuable materials, important chemical raw materials are produced by using the branches and the wood chips, and the branches and the wood chips contain a large number of pores, so that the branches and the wood chips have strong adsorption capacity, can decolorize and remove invisible substances, and can be widely applied to aspects of national defense, pharmacy, chemical industry, food, environmental protection and the like.

With the development of agricultural and sideline product processing, the demand of activated carbon is increasing, and the requirements of maltose decoloring, oil and fat deodorization, gas separation and purification, water purification, gold and silver recovery, chemical agent purification, pharmacy and the like can not be kept away. The activated carbon can be sawdust of coniferous hardwood or pulverized branches and sawdust, preferably hard shells such as walnut shell and hammer shell, and large bones of animals.

Activated carbon is in process of production, need carry out drying process to the saw-dust, and current drying device generally all is drum dryer, is provided with the heating coil who is used for drying the saw-dust in the cylinder, and heating coil generally is hot-water line, hot-blast main or electrothermal tube, so design, though can realize the effect that the saw-dust was dried, nevertheless passes through heating coil and conducts heat, and the saw-dust is heated inequality easily, causes the stoving time longer, and the stoving effect is relatively poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a hot-blast formula saw-dust drying device based on waste material boundary bark firewood, it has solved the uneven problem of current drying device saw-dust thermally easy.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a hot-air type sawdust drying device based on waste bark firewood comprises a barrel, a blanking channel, a jacket, a hot air inlet and a hot air outlet, wherein the hot air inlet and the hot air outlet are respectively positioned at two ends of the barrel, and a filter screen is arranged on the hot air outlet;

the blanking channel is positioned at the top of the cylinder and is close to the hot air inlet;

the barrel is a horizontal barrel, the longitudinal section of the barrel is in an isosceles trapezoid shape, one end of the barrel is small in caliber, the other end of the barrel is large in caliber, the hot air inlet is located in the middle of the small caliber, and the hot air outlet is located above the middle of the large caliber;

the jacket is coated on the circumferential surface of the cylinder body, a heat medium inlet and a heat medium outlet for the heat medium to enter and exit are formed in the jacket, and the heat medium is gas generated by burning waste bark firewood;

the barrel is provided with a discharge port, and the discharge port is located at the bottom of the barrel and close to one end with the large caliber.

Through above-mentioned technical scheme, the saw-dust of treating drying enters into the barrel through the unloading passageway, and hot-air enters into the barrel through hot-blast import, and under the effect of hot gas flow, the saw-dust flows along with hot-air, because hot-air enters into the barrel from the pipeline, enters into big space from the little space promptly, consequently enters into the hot-air in the barrel and will drive the saw-dust and form the air current swirl in the barrel. For the saw-dust that humidity is big, the quality is heavier because the air current can't drive, generally can sink in barrel bottom earlier, waits that steam is slowly taken away by hot-air, and the quality becomes light gradually the back, will slowly follow the air and fly off to barrel middle part and top. The setting of filter screen mainly used interception saw-dust prevents that the saw-dust from passing through the outside departure of hot air outlet, and the saw-dust after the stoving will outwards emit through the discharge port. By adopting the hot-flow drying method, the sawdust is directly contacted with hot air, so that the moisture in the sawdust can be rapidly driven, the drying speed is high, and the effect is good. The waste material bark firewood is used for drying the sawdust, and compared with electric heating or water heating, the waste material bark firewood has the advantages of high heat energy utilization rate, energy conservation and environmental protection.

More preferably: a wind shield is arranged in the cylinder, the upper end of the wind shield is fixed at the top in the cylinder, and the lower end of the wind shield is suspended above the central shaft of the cylinder;

the wind shield is arranged in an arc shape, the outer arc surface faces the small caliber, and the inner arc surface faces the large caliber.

More preferably: the deep bead is provided with a plurality ofly, and is a plurality of the deep bead is followed barrel length direction is equidistant to be set up.

More preferably: the device also comprises a rotating mechanism, wherein the rotating mechanism comprises a first motor, a connecting shaft, a paddle and a mounting block;

the first motor is fixed in the large-caliber center of the cylinder, one end of the connecting shaft is inserted into the mounting block, the other end of the connecting shaft penetrates through the cylinder and is connected with the first motor, and the mounting block is fixed on the inner wall of the cylinder;

the central shaft of the connecting shaft and the central shaft of the cylinder body are positioned on the same straight line;

the paddle is fixed on the circumferential surface of the connecting shaft and rotates coaxially with the connecting shaft.

More preferably: the heat medium outlet is positioned at the bottom of the cylinder body and close to the small-caliber end of the cylinder body, and the heat medium inlet is positioned at the top of the cylinder body and close to the large-caliber end of the cylinder body.

More preferably: the material guide mechanism comprises a second motor, a material stirring block and a rotating shaft;

the second motor is fixed on the shell of the blanking channel, the rotating shaft is positioned in the blanking channel and is vertical to the central shaft of the blanking channel, and the blanking channel is vertically arranged;

one end of the rotating shaft is inserted into the inner wall of the blanking channel, and the other end of the rotating shaft penetrates through the blanking channel and is connected with the output shaft of the second motor;

the material stirring block is fixed on the circumferential surface of the rotating shaft and used for controlling the wood chip blanking speed.

More preferably: the material shifting block is hexagonal prism-shaped, and the central axis of the material shifting block and the central axis of the rotating shaft are positioned on the same straight line.

To sum up, the utility model discloses following beneficial effect has: the drying device is mainly divided into two stages in the use process, wherein the first stage is a blanking stage, air is not supplied from the hot air inlet at the moment, the second stage is a hot air drying stage, and hot air enters the barrel through the hot air inlet at the moment. In the first stage, second motor and first motor all are in the open mode, and the pivot drives and dials the material piece and rotate for the saw-dust of waiting to dry slowly enters into the barrel along with the rotation of dialling the material piece, and the paddle rotates the in-process, can constantly stir the saw-dust in the barrel, makes the saw-dust in the barrel be heated evenly, and the stoving is mainly through the hot medium in the clamp cover this moment. In the second stage, first motor is in the on-state, and second motor work stops, and the saw-dust in the barrel has carried out a heating at first stage in-process, but the degree of dryness still is not enough, perhaps some saw-dust degrees of dryness have reached, some have not reached yet, consequently in order to improve the stoving effect, have set up the hot air current and dry, make the saw-dust fully dry. The paddle mainly plays the stirring effect in the first stage, and in the second stage, mainly used breaks up the air current, forms new air current swirl, and the saw-dust of being convenient for is fully heated, and the stoving effect is better.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment, which is mainly used for embodying the structure of a hot air type wood chip drying device;

fig. 2 is a schematic sectional view of an embodiment, which is mainly used for embodying the internal structure of the hot air type wood chip drying device.

In the figure, 1, a hot air inlet; 2. a jacket; 3. a hot air outlet; 4. a thermal medium inlet; 5. a discharge port; 6. a rotation mechanism; 61. a first motor; 62. a connecting shaft; 63. a paddle; 64. a mounting block 7, a heat medium outlet; 8. a blanking channel; 91. a material stirring block; 92. a rotating shaft; 10. a barrel; 11. a wind deflector; 12. and (5) filtering by using a filter screen.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

Example (b): a hot air type wood chip drying device based on waste material bark firewood is shown in figure 1-2 and comprises a cylinder body 10, a discharging channel 8, a jacket 2, a hot air inlet 1, a hot air outlet 3, a rotating mechanism 6 and a material guiding mechanism. The hot air inlet 1 and the hot air outlet 3 are respectively positioned at two ends of the cylinder body 10, and the hot air outlet 3 is provided with a filter screen 12 for intercepting sawdust. The sawdust to be dried enters the barrel 10 through the discharging channel 8, the lower end of the discharging channel 8 is connected with the top of the barrel 10, and the discharging channel 8 is close to the hot air inlet 1. The barrel 10 is a horizontal barrel, the longitudinal section of the barrel is isosceles trapezoid, one end of the barrel 10 is small in caliber, the other end of the barrel is large in caliber, the hot air inlet 1 is located in the middle of the small caliber, and the hot air outlet 3 is located above the middle of the large caliber. The cylinder body 10 is provided with a discharge port 5, and the discharge port 5 is positioned at the bottom of the cylinder body 10 and close to one end with a large caliber. The discharge port 5 is filled with a plug or is provided with a control valve, so that the discharge port 5 can be closed or opened conveniently.

In above-mentioned technical scheme, the saw-dust of waiting to dry passes through unloading passageway 8 and enters into barrel 10, and hot-air enters into barrel 10 through hot-blast import 1, and under the effect of hot gas flow, the saw-dust flows along with hot-air, because hot-air enters into barrel 10 from the pipeline, enters into big space from little space promptly, consequently enters into the hot-air in barrel 10 and will drive the saw-dust and form the air current swirl in barrel 10. For the sawdust with high humidity and heavy mass, because the air flow can not drive, the sawdust generally sinks at the bottom in the cylinder 10 first, and when the water vapor is slowly taken away by the hot air, the sawdust can slowly fly to the middle and the top of the cylinder 10 along with the air after the mass gradually becomes light. The setting of filter screen 12 mainly used interception saw-dust prevents that the saw-dust from passing through hot air outlet 3 outwards departure, and the saw-dust after the stoving will outwards be discharged through discharge port 5. By adopting the hot-flow drying method, the sawdust is directly contacted with hot air, so that the moisture in the sawdust can be rapidly driven, the drying speed is high, and the effect is good. The waste material bark firewood is used for drying the sawdust, and compared with electric heating or water heating, the waste material bark firewood has the advantages of high heat energy utilization rate, energy conservation and environmental protection.

In addition, set barrel 10 to one end diameter big, one end diameter is little, and mainly used changes barrel 10 space size, when the air current blows to barrel 10 big aperture end from barrel 10 small aperture end, because barrel 10 space grow gradually, will produce the vortex in barrel 10, has improved the contact time and the area of contact of saw-dust with the hot-air, and the stoving effect is better, has shortened the stoving time. Set barrel 10 to horizontal barrel and longitudinal section for isosceles trapezoid in addition, can be convenient for the saw-dust subsides the bottom in barrel 10 near heavy-calibre one end, and the saw-dust that just drops from unloading passageway 8, humidity is big, and the quality is heavy, consequently generally all can pile up the bottom in barrel 10 earlier, and along with the blowing of hot-air, steam in the saw-dust is slowly taken away, begins to follow gradually that hot-air removes and flies in barrel 10, until flying to the inside top of barrel 10.

Referring to fig. 1-2, a wind shield 11 is arranged in a cylinder 10, the upper end of the wind shield 11 is fixed at the top of the cylinder 10, and the lower end is suspended above the central shaft of the cylinder 10. The wind shield 11 is arc-shaped and has an outer arc surface facing a small caliber and an inner arc surface facing a large caliber. The wind shield 11 is provided with a plurality of wind shields 11, and the wind shields 11 are arranged at equal intervals along the length direction of the cylinder 10. Specifically, in the present embodiment, four wind deflectors 11 are provided.

In above-mentioned technical scheme, the setting of deep bead 11 mainly is used for forming a plurality of air eddies, has improved the contact time and the area of contact of saw-dust and hot-air.

Referring to fig. 1-2, the rotation mechanism 6 includes a first motor 61, a connecting shaft 62, a paddle 63, and a mounting block 64. The first motor 61 is fixed in the large-caliber center of the cylinder 10, one end of the connecting shaft 62 is inserted in the mounting block 64 and is in running fit with the mounting block 64, the other end of the connecting shaft passes through the cylinder 10 and is connected with the output shaft of the first motor 61, and the mounting block 64 is fixed on the inner wall of the cylinder 10. The central axis of the connecting shaft 62 is aligned with the central axis of the cylinder 10. The paddle 63 is fixed to the circumferential surface of the connecting shaft 62 and rotates coaxially with the connecting shaft 62. Specifically, paddle 63 is two oblique leaf formula paddles, and paddle 63 is provided with a plurality ofly, and a plurality of paddles 63 set up along connecting axle 62 length direction equidistant. The jacket 2 is coated on the circumferential surface of the cylinder 10, a heat medium inlet 4 and a heat medium outlet 7 for the heat medium to enter and exit are arranged on the jacket 2, and the heat medium is gas generated by burning waste bark firewood. The heat medium outlet 7 is located at the bottom of the cylinder 10 and close to the small-caliber end of the cylinder 10, and the heat medium inlet 4 is located at the top of the cylinder 10 and close to the large-caliber end of the cylinder 10. The material guiding mechanism includes a second motor (not shown), a material shifting block 91 and a rotating shaft 92. The second motor is fixed on the shell of the blanking channel 8, the rotating shaft 92 is positioned in the blanking channel 8 and is vertical to the central shaft of the blanking channel 8, and the blanking channel 8 is vertically arranged. One end of the rotating shaft 92 is inserted on the inner wall of the blanking channel 8 and is in running fit with the inner wall of the blanking channel 8, and the other end of the rotating shaft passes through the blanking channel 8 and is connected with the output shaft of the second motor. The material pulling block 91 is fixed on the circumferential surface of the rotating shaft 92 and is used for controlling the wood chip blanking speed. The material pulling block 91 is hexagonal prism-shaped, and the central axis of the material pulling block 91 and the central axis of the rotating shaft 92 are positioned on the same straight line.

In the above technical scheme, the heat medium enters the jacket 2 through the heat medium inlet 4, is discharged outwards through the heat medium outlet 7 after heat exchange, and the drying device is mainly divided into two stages in the using process, wherein the first stage is a blanking stage, the hot air inlet 1 does not supply air, the second stage is a hot air drying stage, and the hot air enters the barrel 10 through the hot air inlet 1. In the first stage, second motor and first motor 61 all are in the on-state, and pivot 92 drives group piece 91 and rotates for the saw-dust of waiting to dry slowly enters into barrel 10 along with group piece 91's rotation, and paddle 63 rotates the in-process, will constantly stir the saw-dust in the barrel 10, makes the saw-dust in the barrel 10 be heated evenly, and the stoving is mainly through the hot medium in the clamp cover 2 this moment. In the second stage, first motor 61 is in the on-state, and second motor work stops, for the convenience of control saw-dust unloading, can install a plugging device on the unloading passageway 8, like valve etc. the saw-dust in the barrel 10 has carried out a heating at first stage in-process, but the degree of dryness still is not enough, or some saw-dust degrees of dryness have reached, some have not reached yet, consequently for improving the stoving effect, set up the hot air current and dried, make the saw-dust fully heated. The paddle 63 mainly plays a role in stirring in the first stage, and is mainly used for disturbing airflow to form new airflow vortexes in the second stage, so that the drying effect is good.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should be construed as the scope of the present invention.

Claims

1. The utility model provides a hot-blast formula saw-dust drying device based on waste material boundary layer firewood which characterized in that: the blanking device comprises a cylinder (10), a blanking channel (8), a jacket (2), a hot air inlet (1) and a hot air outlet (3), wherein the hot air inlet (1) and the hot air outlet (3) are respectively positioned at two ends of the cylinder (10), and a filter screen (12) is arranged on the hot air outlet (3);

the blanking channel (8) is positioned at the top of the cylinder (10) and is close to the hot air inlet (1);

the barrel (10) is a horizontal barrel, the longitudinal section of the barrel is in an isosceles trapezoid shape, one end of the barrel (10) is small in caliber, the other end of the barrel is large in caliber, the hot air inlet (1) is located in the middle of the small caliber, and the hot air outlet (3) is located above the middle of the large caliber;

the jacket (2) is coated on the circumferential surface of the cylinder (10), a heat medium inlet (4) and a heat medium outlet (7) for the heat medium to enter and exit are formed in the jacket (2), and the heat medium is gas generated by burning waste bark firewood;

the discharge port (5) is arranged on the barrel body (10), and the discharge port (5) is located at the bottom of the barrel body (10) and close to one end of the large caliber.

2. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 1, characterized in that: a wind shield (11) is arranged in the cylinder (10), the upper end of the wind shield (11) is fixed at the inner top of the cylinder (10), and the lower end of the wind shield is suspended above the central shaft of the cylinder (10);

the wind shield (11) is arranged in an arc shape, the outer arc surface faces the small caliber, and the inner arc surface faces the large caliber.

3. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 2, characterized in that: the wind shield is characterized in that the wind shields (11) are arranged in a plurality, and the wind shields (11) are arranged at equal intervals along the length direction of the cylinder (10).

4. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 1, characterized in that: the device is characterized by also comprising a rotating mechanism (6), wherein the rotating mechanism (6) comprises a first motor (61), a connecting shaft (62), a paddle (63) and a mounting block (64);

the first motor (61) is fixed in the large-caliber center of the cylinder body (10), one end of the connecting shaft (62) is inserted into the mounting block (64), the other end of the connecting shaft penetrates through the cylinder body (10) and is connected with the first motor (61), and the mounting block (64) is fixed on the inner wall of the cylinder body (10);

the central shaft of the connecting shaft (62) and the central shaft of the cylinder body (10) are positioned on the same straight line;

the paddle (63) is fixed on the circumferential surface of the connecting shaft (62) and rotates coaxially with the connecting shaft (62).

5. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 1, characterized in that: the heat medium outlet (7) is located at the bottom of the cylinder body (10) and close to the small-caliber end of the cylinder body (10), and the heat medium inlet (4) is located at the top of the cylinder body (10) and close to the large-caliber end of the cylinder body (10).

6. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 1, characterized in that: the material guide mechanism comprises a second motor, a material stirring block (91) and a rotating shaft (92);

the second motor is fixed on the shell of the blanking channel (8), the rotating shaft (92) is positioned in the blanking channel (8) and is vertical to the central shaft of the blanking channel (8), and the blanking channel (8) is vertically arranged;

one end of the rotating shaft (92) is inserted on the inner wall of the blanking channel (8), and the other end of the rotating shaft penetrates through the blanking channel (8) and is connected with the output shaft of the second motor;

the material stirring block (91) is fixed on the circumferential surface of the rotating shaft (92) and is used for controlling the wood chip blanking speed.

7. The hot air type wood chip drying device based on the waste material side bark firewood as claimed in claim 6, characterized in that: the material stirring block (91) is hexagonal prism-shaped, and the central axis of the material stirring block (91) and the central axis of the rotating shaft (92) are positioned on the same straight line.