KR102157581B1 - device for drying a wood byproduct - Google Patents

Abstract

The apparatus for drying wood by-products of the present invention comprises: a supply hopper for storing and storing wood by-products in a pulverized state; An air flow transfer blower generating wind pressure to transfer the wood by-products supplied from the supply hopper through a transfer duct; A heating means for applying heat to dry wood by-products being transported through the transport duct; A dryer installed on the transfer duct so that the wood by-products transferred by air stream are separated into particles without agglomeration and are dried; A dust collector connected to the transfer duct to separate the wood by-products which are dried in a particulate state through the dryer and transferred by air stream; And a storage tank containing the dried wood by-product particles separated from the dust collector and self-contained; wherein the dryer, the wood by-product collides in the process of conveying the wood by-product into the interior, is separated in the form of pulverized particles, and transfers the air flow of the wood by-product to be dried. A plurality of rows of impingement pipes installed at regular intervals in a direction crossing the direction are provided so that they are dried and stored in the form of crushed particles without sticking to each other by moisture contained in the crushed wood by-products.

Description

Device for drying a wood by product

The present invention relates to a wood by-product drying apparatus, and more particularly, to a wood by-product drying apparatus capable of being dried and stored in the form of crushed particles without sticking to each other by moisture contained in the crushed wood by-product.

As is well known, wood by-products such as sawdust and leaves are processed in a pulverized state and used for various industrial uses such as furniture, construction materials, compost, livestock feed, fuel, and mushroom cultivation.

Depending on such industrial use, sawdust processing, that is, drying methods and devices thereof, are also different, and the resulting products can be variously processed.

In general, sawdust is used as compost for soil fertilization or feed for livestock, by mixing it with other processed materials in a large yard or greenhouse or house, or by drying and fermenting in a piled state by solar or artificial drying heat alone. Used as organic fertilizer or organic feed.

Domestic Utility Model Announcement No. 20-1989-5887 discloses a drying device for extinguishing and burning sawdust that can be circulated in a drying pipe for the purpose of obtaining carbides by evaporating and carbonizing moisture contained in sawdust.

Domestic Utility Model No. 20-223525 discloses a device for mixing and drying sawdust laid on the floor of a barn by hot air for the purpose of reducing odor and reducing disease.

Domestic Utility Model Publication No. 20-2009-3455 discloses a mass drying system of sawdust by hot air suitable for livestock mats, feed or mushroom cultivation and fuel.

In addition, Korean Patent Registration No. 10-967433 discloses a drying apparatus for applying hot air for the purpose of drying in order to uniformly remove moisture from sawdust and maintain a uniform moisture content.

However, in the case of the conventional wood by-product drying apparatus described above, not only the structure is complicated, but also when the wood by-products adhere to each other by moisture and form a lump, they do not have separate means for crushing them. It has the disadvantage that it is difficult to use for furniture or furniture

Republic of Korea Utility Model Publication No. 1989-0005887 (announcement date August 30, 1989) Republic of Korea Utility Model Publication No. 20-0223525 (Registration Date February 28, 2001) Republic of Korea Public Utility Model Publication No. 20-2009-0003455 (Registration date April 14, 2009) Korean Registered Patent Publication No. 10-0967433 (Registration Date June 24, 2010)

An object of the present invention for solving the above problems is to provide a wood by-product drying apparatus capable of being dried and stored in the form of pulverized particles without sticking to each other by moisture contained in pulverized wood by-products.

The wood by-product drying apparatus of the present invention for achieving the above object comprises: a supply hopper for storing and storing wood by-products in a pulverized state; An air flow transfer blower generating wind pressure to transfer the wood by-products supplied from the supply hopper through a transfer duct; A heating means for applying heat to dry wood by-products being transported through the transport duct; A dryer installed on the transfer duct so that the wood by-products transferred by air stream are separated into particles without agglomeration and are dried; A dust collector connected to the transfer duct to separate the wood by-products which are dried in a particulate state through the dryer and transferred by air stream; And a storage tank that contains the wood by-product particles separated from the dust collector and stores the wood by-product particles separated from the dust collector; wherein the dryer collides with the wood by-product particles and is separated and dried in the form of pulverized particles while the wood by-product is transferred to the inside. It is characterized in that a plurality of rows of impingement pipes installed at predetermined intervals in a direction intersecting with are provided.

Here, the impact pipes are preferably formed to be cross-arranged so that the impact pipes of the rear row installed at the rear along the airflow transport direction of the wood by-products are positioned between the impact pipes of the front row installed at the front.

In addition, it is preferable that the heating means is made of a water tube boiler, and the hot water heated from the water tube boiler passes through and circulates inside the collision pipes.

Further, on the outer circumferential surfaces of the collision pipes, collision protrusions in the form of a bar, a fin, or a spiral wing may be additionally provided.

In addition, the supply hopper may be connected to the transfer duct at the air inlet side of the air flow transfer blower, and at this time, the supply hopper may be connected between the outlet side of the supply hopper and the transfer duct at the air inlet side of the air flow transfer blower by a screw conveyor. .

In addition, the heating means may be made of a radiator, and the radiator may be installed at an air inlet of the air flow transfer blower to supply heated air to the air flow transfer blower.

In addition, the supply hopper may be connected on the transfer duct to the air outlet side of the air flow transfer blower, and at this time, on a supply pipe connected between the outlet side of the supply hopper and the air outlet side of the air flow transfer blower. A rotary valve can be installed on the.

According to the wood by-product drying apparatus of the present invention as described above, the wood by-product supplied through the air flow transfer blower is conveyed by air flow, and the wood by-products are adhered to each other by moisture contained in the pulverized wood by-products using collision pipes installed in the dryer. It has the effect of allowing the lumps of wood by-products to be decomposed by colliding with the impingement pipes during airflow transport, and applying heat to the dryer through the impingement pipes to allow easier and faster drying of the wood by-products.

In addition, a radiator constituting the heating means is installed on the air inlet side of the air flow transfer blower, and the supply hopper is configured to be connected on the transfer duct to the air outlet side of the air flow transfer blower through a rotary valve. It is possible to simplify the configuration of the device, and because the wood by-products supplied on the transfer duct toward the air outlet side of the air flow transfer blower through the supply hopper are dried by heated air before entering the dryer, drying of the wood by-products is faster. In addition to making it possible to achieve, it has the effect of making it easier to decompose and dry by colliding with the particles agglomerated on the collision pipes inside the dryer in a partially dried state.

1 is a schematic side cross-sectional view showing an apparatus for drying wood by-products according to a first embodiment of the present invention.
2 is an enlarged side cross-sectional view of the dryer of FIG. 1.
3 is a perspective view showing modified examples of the impact pipe of FIG. 2.
4 is a schematic side cross-sectional view showing an apparatus for drying wood by-products according to a second embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and the same reference numerals are assigned to the same or similar components throughout the specification.

1 is a schematic side cross-sectional view showing an apparatus for drying wood by-products according to a first embodiment of the present invention.

Referring to FIG. 1, the apparatus 100 for drying wood by-products according to the present embodiment includes a supply hopper 10, an air flow transfer blower 20, a heating means 30, a dryer 40, a dust collector 50, and a storage tank ( 60).

The supply hopper 10 is stored in a state containing moisture in sawdust in the form of crushed wood by-products, and can be supplied into the transfer ducts 21, 25, 26 for drying the sawdust.

In the present embodiment, sawdust is exemplified in the form of a pulverized product of wood by-products, but the present invention is not limited thereto, and all forms of by-products generated during processing of wood, such as leaves and bark, may be included.

The air flow transfer blower 20 generates wind pressure to transfer the wood by-products supplied from the supply hopper 10 through a transfer duct.

In this embodiment, the supply hopper 10 is connected to the air inlet side of the air flow transfer blower 20 on the transfer duct 21, and at this time, the outlet side 11 of the supply hopper 10 and the air flow transfer The air inlet side of the blower 20 is connected to the conveying duct 21 and the screw conveyor 15.

In addition to the air inlet side transfer duct 210 connecting the supply hopper 10 and the air flow transfer blower 20, the transfer duct 25 is an air outlet side transfer duct connecting the air flow transfer blower 20 and the dryer 40 And it may be configured to include a dryer discharge side transfer duct 26 connecting the dryer 40 and the dust collector 50.

Therefore, the supply speed of the sawdust stored in the supply hopper 10 can be implemented by adjusting the rotation speed of the screw conveyor 15.

The dryer 40 is installed on the transfer ducts 25 and 26 so that the wood by-products transferred by air stream are not aggregated and separated into particles, and are dried by the heat transferred through the heating means.

2 is an enlarged side cross-sectional view of the dryer of FIG. 1.

Referring to FIG. 2, the wood by-products collide in the process of transporting the air stream inside the dryer 40, are separated into pulverized particles, and are dried, at a predetermined interval in a direction crossing the air flow transport direction of the wood by-products. A plurality of rows of impingement pipes 41 to be installed may be provided.

The impact pipes 41 are formed to be cross-arranged so that the impact pipes 43 of the rear row installed at the rear along the airflow transport direction of the wood by-products are positioned between the collision pipes 42 of the front row installed at the front. It is desirable.

In this way, by allowing the heat transfer impact pipes 42 and the adjacent post heat impact pipes 42 to be arranged alternately with each other with a 1/2 pitch, sawdust particles do not collide with the impact pipes 41; 42, 43 Just try to prevent it from slipping out.

3 is a perspective view showing modified examples of the impact pipe of FIG. 2.

As shown in (a) to (b) of Figure 3, on the outer circumferential surface of the impact pipes (41, 42), bars (41a, 42a; bar), pins (41b, 42b: fin), or a helical wing-shaped impact protrusion Is additionally provided, so that the sawdust bundles collide and are separated in the form of pulverized particles more easily, and the heat transferred to the impact pipes 41 through the heating means 30 as described later is further provided with moisture contained in the sawdust. Make it easy to dry.

Here, the number of impact protrusions 41a, 41b. 41c formed on the outer circumferential surface of the impact pipes 41 and 42 may be decomposed by colliding with sawdust bundles, and transferring heat transferred from the heating means 30 is It is possible, but it is most preferable that the sawdust is not subject to unnecessary flow resistance to airflow.

Referring again to FIG. 1, the heating means 30 provides heat necessary for drying the wood by-products being transported through the airflow duct.

In this embodiment, the heating means 30 is made of a water tube boiler or a heat medium boiler, and at this time, it is exemplified that hot water or heat medium heated in the water tube boiler or heat medium boiler is circulated and supplied to the inside of the collision pipes 41 described above. do.

To this end, the water tube boiler or the heat medium boiler 30 is a boiler 31 having an internal water pipe or heat medium pipe 32 formed therein, and connects the water pipe or heat medium pipe 32 inside the boiler 31 and the collision pipe 41. A heat source supply line 33, a heat source supply device 34 for pressurizing the hot water or heat medium heated through the heat source supply line 33 to be better supplied into the collision pipes 41, and the collision pipe 41 ) From the boiler 31, the internal water pipe or the heat medium pipe 32, and may be configured to include a heat source recovery line 35 for recovering a heat source.

Therefore, as described above, the sawdust supplied from the supply hopper 10 and airflow transferred by the airflow transfer blower 30 collides with the collision pipes 41 inside the dryer 40, and the particles that were aggregated by moisture are originally crushed. In addition to being separated in the form of particles, it can be more easily heated and dried by hot water or heat supplied from the heat medium boiler 30 in the process of colliding with the collision pipe.

The dust collector 50 is connected through the dryer discharge shaft transfer duct 26 to separate the wood by-products which are dried in the state of pulverized particles through the dryer 40 and transferred to the air stream.

In this embodiment, the dust collector 50 is exemplified by a cyclone dust collector. Accordingly, the dry sawdust contained in the airflow introduced from the dryer 500 and the moisture evaporation vapor separated from the sawdust are separated using a specific gravity difference due to centrifugal force.

In addition, the storage unit 60 stores the dried wood by-product particles separated from the dust collector 50 and stores them.

As such, the wood by-product drying apparatus 100 of the present embodiment uses the impact pipes 41 installed in the dryer 40 to adhere to each other by moisture contained in the pulverized wood by-products. In addition to being decomposed by colliding with the (41), heat is applied to the dryer through the impingement pipes (41) so that the sawdust can be dried more easily and quickly.

Hereinafter, another embodiment of the wood by-product drying apparatus of the present invention will be described with reference to FIG. 4 attached, but the same reference numerals are used for the same and similar configurations compared to the above-described first embodiment, and repeated description thereof Is omitted.

4 is a schematic side cross-sectional view showing an apparatus for drying wood by-products according to a second embodiment of the present invention.

Referring to FIG. 4, in the wood by-product drying apparatus 200 of this embodiment, compared to the first embodiment described above, the heating means 130 is made of a radiator, and the radiator is the air flow transfer blower 20 ) Is installed on the air inlet side of the radiator and is configured to supply the heated air from the radiator toward the air flow transfer blower 20.

In addition, the supply hopper 10 is configured to be connected to the air outlet side of the air flow transfer blower on the transfer duct 25, the outlet side of the supply hopper 10 and the air outlet of the air flow transfer blower 20 There is a difference in the configuration of installing a rotary valve 115 on the side between the transfer duct 25 to control the amount of sawdust supplied.

Therefore, by allowing the heated air supplied from the radiator 130 to be introduced from the air inlet end of the transfer duct 21, the configuration of the device for the heating means can be simplified, and the air flow transfer blower through the supply hopper 10 Since the sawdust supplied on the conveying duct 25 toward the air outlet side of (20) is dried by heating air before entering the dryer 40, the sawdust can be dried more quickly and partially dried. Particles agglomerated on the collision pipes 41 inside the furnace dryer 40 collide, so that decomposition can be performed more easily.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and it is possible to implement various modifications or changes within the scope of the claims, the detailed description of the invention, and the accompanying drawings. It is natural that it also falls within the scope of the present invention.

10: supply hopper 15: screw conveyor
20: air flow transfer blower 21: air inlet side transfer duct
25: air outlet side transfer duct 26: dryer outlet side transfer duct
30: heating means (water pipe and heat medium boiler) 31: boiler
32: heat source supply device 33: heat source supply line
34: heat source recovery line 40: dryer
41: collision pipe 41a, 41b, 41c: collision protrusion
42: heat impact pipe 43: heat transfer impact pipe
50: dust collector 60: storage
100, 200: wood by-product drying device 115: rotary valve
130: heating means (lighter)

Claims (9)

A supply hopper for storing and storing wood by-products in a pulverized state; An air flow transfer blower generating wind pressure to transfer the wood by-products supplied from the supply hopper through a transfer duct; A heating means for applying heat to dry wood by-products being transported through the transport duct; A dryer installed on the transfer duct so that the wood by-products transferred by air stream are separated into particles without agglomeration and are dried; A dust collector connected to the transfer duct to separate the wood by-products which are dried in a particulate state through the dryer and transferred by air stream; And a storage tank for storing the dried wood by-product particles separated from the dust collector and storing them.
The dryer is provided with a plurality of rows of impingement pipes installed at predetermined intervals in a direction intersecting the direction of airflow transport of the wood by-product so as to collide with the wood by-product in the process of being transported to the inside and to be separated into pulverized particles and to be dried,
The impact pipes are formed to be cross-arranged so that the impact pipes of the rear row installed at the rear along the airflow transport direction of the wood by-products are positioned between the impact pipes of the front row installed at the front,
The heating means is made of any one of a water tube boiler, a heat medium boiler, and a radiator, and the hot water or heat medium heated from the water tube boiler or the heat medium boiler passes through the collision pipes to circulate, and the radiator is the air flow transfer blower. It is installed at the air inlet of and made to supply the heated air toward the air flow transfer blower,
Wood by-product drying apparatus further provided on the outer circumferential surfaces of the collision pipes with collision protrusions in the form of a bar, a fin, or a spiral wing.
delete delete delete In claim 1,
The supply hopper is a wood by-product drying apparatus connected to the transfer duct toward the air inlet of the air flow transfer blower.
In clause 5,
Wood by-product drying apparatus for connecting between the outlet side of the supply hopper and the transfer duct on the air inlet side of the air flow transfer blower by a screw conveyor.
delete In claim 1,
The supply hopper is a wood by-product drying apparatus connected to the transfer duct toward the air outlet side of the air flow transfer blower.
In clause 8,
Wood by-product drying apparatus for connecting between the outlet side of the supply hopper and the transfer duct on the air outlet side of the air flow transfer blower with a rotary valve.

Images