CN115978967A

CN115978967A - Organic fertilizer drying equipment capable of continuously drying and drying method thereof

Info

Publication number: CN115978967A
Application number: CN202211595157.4A
Authority: CN
Inventors: 潘韵婷; 程玉才; 潘润秋; 曹良元
Original assignee: Anhui Longwanshan Ecological Agricultural Technology Co ltd
Current assignee: Anhui Longwanshan Ecological Agricultural Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-18

Abstract

The invention provides organic fertilizer drying equipment capable of continuously drying and a drying method thereof, wherein the organic fertilizer drying equipment comprises a drying box, a plurality of drying cylinders which are arranged in parallel are fixedly arranged in the drying box, a conveying shaft is connected in the drying cylinders in a rotating mode, a conveying auger is arranged on the conveying shaft, a feeding port and a discharging port are respectively arranged at two ends of each drying cylinder, butt-joint pipes are respectively connected between the feeding ports and the discharging ports of the drying cylinders, an air inlet and an air outlet are respectively arranged at the bottom and the top of each drying cylinder, the air inlet and the air outlet extend along the conveying direction of the drying cylinders, and blocking nets are respectively arranged in the air inlet and the air outlet. This equipment can be with in the fertilizer lasts sending into a plurality of drying drums, the fertilizer is carried through carrying the auger in drying drum, with the even distribution of fertilizer in drying drum, the rethread is dried from bottom to top hot-blast realization, can realize the stoving process of serialization, and drying efficiency is high.

Description

Organic fertilizer drying equipment capable of continuously drying and drying method thereof

Technical Field

The invention relates to the technical field of organic fertilizer production, in particular to organic fertilizer drying equipment capable of continuously drying and a drying method thereof.

Background

The organic fertilizer is mainly derived from plants and/or animals, and is a carbon-containing material which is applied to soil to provide plant nutrition as a main function. Is prepared from biological substances, animal and plant wastes and plant residues, eliminates toxic and harmful substances in the biological substances, and is rich in a large amount of beneficial substances, including: various organic acids, peptides and rich nutrient elements including nitrogen, phosphorus and potassium. The fertilizer not only can provide comprehensive nutrition for crops, but also has long fertilizer efficiency, can increase and update soil organic matters, promote microbial propagation, improve the physical and chemical properties and biological activity of soil, and is a main nutrient for green food production.

After the organic fertilizer is collected, the organic fertilizer needs to be dried in time, so that the quality guarantee period of the organic fertilizer can be prolonged, the drying machine is adopted to dry mostly at present, the drying machine is a rotary drum, the drying quantity is certain every time, after one-time drying, the discharging and the feeding are needed, and the drying efficiency is low.

Disclosure of Invention

Aiming at the problems, the invention provides organic fertilizer drying equipment capable of continuously drying and a drying method thereof.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the utility model provides an organic fertilizer drying equipment of sustainable stoving, includes the stoving case, stoving incasement fixed mounting has many parallel arrangement's a stoving section of thick bamboo, the stoving section of thick bamboo internal rotation is connected with carries the axle, carry epaxial the installation and carry the auger, a plurality of stoving section of thick bamboo's both ends are equipped with feed inlet and discharge gate respectively, a plurality of stoving section of thick bamboo all be connected with the butt joint pipe between feed inlet and the discharge gate, the bottom and the top of a stoving section of thick bamboo are equipped with air intake and air outlet respectively, air intake and air outlet extend along the direction of delivery of a stoving section of thick bamboo, all install in air intake and the air outlet and keep off the net, the bottom fixed mounting of a stoving section of thick bamboo has the hot-blast main through the air intake to blowing in to a stoving section of thick bamboo, the lateral wall interval of carrying the axle rotates and is connected with a plurality of rabbling mechanisms, deodorization mechanism is installed at the top of stoving case.

Preferably, the feed inlet of the upper drying cylinder is connected with a feed hopper, and the discharge outlet of the lower drying cylinder is connected with a discharge pipe extending out of the drying box.

Preferably, the left ends of the conveying shafts extend out of the corresponding drying cylinders, the extending ends of the conveying shafts are fixedly connected with worm wheels, the bottom of the drying box is provided with a first motor, and an output shaft of the first motor extends into the drying box and is fixedly connected with a worm meshed with the worm wheels.

Preferably, rabbling mechanism is including rotating the (mixing) shaft of connecting at carrying the axle lateral wall, a plurality of stirring leaves of lateral wall fixedly connected with of (mixing) shaft, the (mixing) shaft slope sets up, and is parallel with the adjacent auger blade of carrying the auger, carry the interior cavity setting of axle, and install and can drive a plurality of (mixing) shaft pivoted drive assembly simultaneously.

Preferably, the transmission assembly comprises a first transmission shaft rotatably connected to the right side of the drying box, a second motor capable of driving the first transmission shaft to rotate is installed at the bottom of the drying box, a second transmission shaft is rotatably connected to the conveying shaft, a drying drum extends out of the right end of the second transmission shaft and is in transmission connection with the first transmission shaft through a first bevel gear pair, and the stirring shaft is in transmission connection with the second transmission shaft through a second bevel gear pair.

Preferably, the air heater is installed at the bottom of the drying box, an air outlet pipe is connected to an air outlet end of the air heater, the multiple hot air pipes are all connected with the air outlet pipe, and multiple air blowing holes corresponding to the air inlets are formed in the tops of the hot air pipes.

Preferably, deodorization mechanism is including installing the play fan housing at stoving roof portion, the air-out end that goes out the fan housing is connected with the butt joint pipe, the deodorization case is installed at the top of stoving case, the mixed subassembly is installed to the deodorization incasement, the butt joint pipe is sent waste gas into the deodorization incasement, the uncovered setting in top of deodorization case, and uncovered department installs the active carbon filter screen, deodorant is stored to the deodorization incasement.

Preferably, the mixing assembly comprises a hollow shaft which is rotatably connected in the deodorization box, the deodorization box extends out of two ends of the hollow shaft, the tail end of the butt joint pipe is rotatably connected with the left end of the hollow shaft through a rotary joint, a plurality of holes are uniformly distributed in the hollow shaft, a plurality of mixing blades are mounted on the side wall of the hollow shaft, and the right end of the hollow shaft is in transmission connection with the first transmission shaft through a third bevel gear pair.

The invention also discloses an organic fertilizer drying method, which comprises the following specific steps:

s1, continuously feeding organic fertilizer into drying cylinders through a feed hopper, wherein the heads and the tails of the drying cylinders are communicated through connecting pipes, and continuously conveying the organic fertilizer by a conveying auger in the drying cylinders and uniformly distributing the organic fertilizer in the whole drying cylinders;

s2, the conveying process starts the air heater, hot air enters a plurality of hot air pipes through an air outlet pipe, finally enters a drying cylinder through a plurality of air blowing holes through an air inlet, hot air enters from bottom to top, and the organic fertilizer is conveyed uniformly, so that the organic fertilizer is fully dried after being conveyed by a certain length;

s3, in the conveying and drying process, a second motor is started, a plurality of second transmission shafts are driven to rotate through a first transmission shaft and a plurality of first bevel gear pairs, a plurality of stirring shafts are driven to rotate through a plurality of second bevel gear pairs at the same time, stirring blades are driven to rotate between adjacent auger blades, organic fertilizers among the auger blades can be stirred, organic fertilizers with certain thickness are stirred, hot air can better pass through the organic fertilizers, the drying effect is further improved, the caked organic fertilizers can be dispersed, and the quality of the organic fertilizers is improved;

s4, the waste gas in the drying box finally enters the butt joint pipe through the air outlet cover, then enters the hollow shaft through the rotary joint, finally enters the deodorant of the deodorizing box through a plurality of uniformly distributed holes, the hollow shaft rotates, then the plurality of mixing blades are driven to rotate, the waste gas is fully contacted and mixed with the deodorant, the deodorant can effectively remove odor substances in the waste gas, finally, the deodorizing is further adsorbed through an active carbon filter screen, and the discharge amount of odor in the drying process is greatly reduced.

The invention has the beneficial effects that:

1. through installing a plurality of parallel arrangement's a stoving section of thick bamboo, a plurality of stoving section of thick bamboos end to end intercommunication, area is little, install in the stoving section of thick bamboo and carry the auger, sustainable transport fertilizer, transportation process, the even distribution of fertilizer is in whole stoving section of thick bamboo, and stoving bobbin base portion is equipped with the hot-blast main, can be with hot-blast even sending into in the stoving section of thick bamboo, hot-blast entering from bottom to top, even fertilizer through carrying, under control delivery speed's prerequisite, it is effectual to dry, can realize the stoving process of continuation, drying efficiency is high.

2. Through installation rabbling mechanism, only need start the second motor, it rotates to drive many second transmission shafts through first transmission shaft and first bevel gear pair, a plurality of (mixing) shafts of drive simultaneously of a plurality of second bevel gear pairs of rethread rotate, and then drive the stirring leaf and rotate between adjacent auger blade, can turn the fertilizer between the auger blade, the fertilizer of certain thickness turns, make hot-blast better through the fertilizer, further improve the stoving effect, and can also disperse the fertilizer of caking, improve the fertilizer quality.

3. Through installation deodorization mechanism, it is intraductal that waste gas passes through air-out cover entering butt joint, reentrant in the quill shaft, finally in a plurality of holes through the equipartition get into the deodorant of deodorization case, first transmission shaft passes through the vice drive quill shaft rotation of third bevel gear simultaneously, it rotates to drive a plurality of mixing blades again, make waste gas and deodorant intensive contact mix, the deodorant can effectively detach the stink material in the waste gas, finally further deodorization through the active carbon filter screen, the greatly reduced stoving in-process effluvium's discharge amount.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of a drying drum according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is a sectional view of a deodorization case according to the present invention.

In the figure: the device comprises a drying box 1, a feed hopper 2, an air outlet cover 3, a butt joint pipe 4, a deodorization box 5, a butt joint pipe 6, a discharge pipe 7, a second motor 8, a first bevel gear pair 9, a first transmission shaft 10, a third bevel gear pair 11, a drying cylinder 12, a hot air pipe 13, a hot air fan 14, an air outlet pipe 15, a first motor 16, a worm 17, a worm gear 18, a conveying shaft 19, a blowing hole 20, an air outlet 21, an air inlet 22, a baffle net 23, a stirring mechanism 24, a conveying auger 25, a second transmission shaft 26, a stirring blade 27, a stirring shaft 28, a second bevel gear pair 29, an active carbon filter screen 30, a mixing blade 31, a hollow shaft 32 and a hole 33.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1-4, an organic fertilizer drying device capable of achieving sustainable drying comprises a drying box 1, a plurality of drying cylinders 12 arranged in parallel are fixedly installed in the drying box 1, conveying shafts 19 are connected in the drying cylinders 12 in a rotating mode, conveying augers 25 are installed on the conveying shafts 19, the corresponding drying cylinders 12 extend out of the left ends of the conveying shafts 19, worm wheels 18 are fixedly connected with the extending ends of the conveying shafts 19, a first motor 16 is installed at the bottom of the drying box 1, an output shaft of the first motor 16 extends into the drying box 1 and is fixedly connected with worms 17 meshed with the worm wheels 18, the first motor 16 is started to drive the worms 17 to rotate, the conveying shafts 19 are driven to rotate through the worm wheels 18, the conveying augers 25 are driven to rotate, and organic fertilizer is conveyed sustainably.

The both ends of a plurality of drying section of thick bamboo 12 are equipped with feed inlet and discharge gate respectively, all are connected with between the feed inlet of a plurality of drying section of thick bamboos 12 and the discharge gate and take over 6, and the feed inlet of top drying section of thick bamboo 12 is connected with feeder hopper 2, and the discharge gate of below drying section of thick bamboo 12 is connected with the discharging pipe 7 that extends stoving case 1, and the fertilizer lasts the entering through feeder hopper 2, lasts under 7 the rethread discharging pipe and sees off.

The bottom and the top of a stoving section of thick bamboo 12 are equipped with air intake 22 and air outlet 21 respectively, air intake 22 and air outlet 21 extend along the direction of delivery of a stoving section of thick bamboo 12, all install in air intake 22 and the air outlet 21 and keep off the net 23, the bottom fixed mounting of a stoving section of thick bamboo 12 blows in hot-blast air-supply main 13 in to a stoving section of thick bamboo 12 through air intake 22, air heater 14 is installed to the bottom of stoving case 1, air-out end of air heater 14 is connected with out tuber pipe 15, many hot-blast air-supply main 13 all are connected with out tuber pipe 15, the top of hot-blast air-supply main 13 is equipped with a plurality of blowholes 20 that correspond air intake 22, start-up air heater 14, hot-blast passes through in a plurality of hot-supply main 15 entering a plurality of hot-blast air-supply main 13, finally pass through in a plurality of blowholes 20 gets into a stoving section of thick bamboo 12, hot-blast enters from bottom to top, even organic fertilizer through the transport.

The side wall interval of carrying axle 19 rotates and is connected with a plurality of rabbling mechanisms 24, rabbling mechanism 24 is including rotating the (mixing) shaft 28 of connecting at carrying axle 19 lateral wall, the lateral wall fixedly connected with a plurality of stirring leaves 27 of (mixing) shaft 28, the (mixing) shaft 28 slope sets up, and be parallel with the adjacent auger blade of carrying auger 25, carry the interior cavity setting of axle 19, and install and to drive a plurality of (mixing) shaft 28 pivoted drive assembly simultaneously, drive assembly includes the first transmission shaft 10 of rotation connection on stoving case 1 right side, the second motor 8 that can drive first transmission shaft 10 pivoted is installed to the bottom of stoving case 1, carry the axle 19 internal rotation and be connected with second transmission shaft 26, the right-hand member of second transmission shaft 26 extends drying cylinder 12 and is connected through first bevel gear pair 9 transmission between 12, be connected through the transmission of gear pair 29 transmission between (mixing) shaft 28 and the second transmission shaft 26, rabbling mechanism 24 rotates, can turn over the fertilizer between the second auger blade, the fertilizer of a certain thickness, make hot-blast better process fertilizer, further improve the stoving effect, and can also open the caking organic fertilizer quality.

Deodorization mechanism is installed at the top of stoving case 1, deodorization mechanism is including installing the play wind cover 3 at stoving case 1 top, the air-out end that goes out wind cover 3 is connected with to take over 4, deodorization case 5 is installed at the top of stoving case 1, install mixed subassembly in the deodorization case 5, send waste gas into in the deodorization case 5 to take over 4, the uncovered setting in top of deodorization case 5, and uncovered department installs active carbon filter screen 30, deodorant has been stored in the deodorization case 5, mixed subassembly is including rotating hollow shaft 32 of connecting in deodorization case 5, deodorization case 5 all extends at hollow shaft 32's both ends, rotate through rotary joint between the end of taking over 5 and hollow shaft 32's the left end and be connected, the equipartition has a plurality of holes 33 on the hollow shaft 32, a plurality of mixed blade 31 are installed to hollow shaft 32's lateral wall, connect through the transmission of third bevel gear pair 11 between hollow shaft 32's right-hand member and first transmission shaft 10, the discharge amount of the foul smell among the greatly reduced stoving process.

Organic fertilizer passes through feeder hopper 2 and lasts in getting into drying cylinder 12, a plurality of drying cylinders 12 are end to end through connecting pipe 6 intercommunication, area is little, start first motor 16 and drive worm 17 and rotate, it rotates to drive a plurality of transport axle 19 through worm wheel 18, it rotates to drive transport auger 25 again, sustainable transport fertilizer, transportation process, the even distribution of fertilizer is in whole drying cylinder 12, start air heater 14, hot-blast through going out tuber pipe 15 gets into a plurality of hot-blast main 13, finally pass through a plurality of blowholes 20 and get into in drying cylinder 12 through air intake 22, hot-blast enters from bottom to top, even fertilizer through carrying, under control transport speed's prerequisite, can guarantee that the fertilizer is abundant stoving after certain length's transport, waste gas after the stoving enters into stoving case 1 through the air outlet 21 at top, stoving case 1 casing plays better heat preservation effect.

In the process of carrying the stoving, start second motor 8, drive many second transmission shafts 26 through first transmission shaft 10 and a plurality of first bevel gear pairs 9 and rotate, a plurality of (mixing) shafts 28 of drive simultaneously rotate through a plurality of second bevel gear pairs 29 of rethread, and then drive stirring leaf 27 and rotate between adjacent auger blade (auger blade has certain clearance within a definite time, can guarantee rabbling mechanism 24's rotation process), can turn the fertilizer between the auger blade, turn the fertilizer of certain thickness, make hot-blast better process fertilizer, further improve the stoving effect, and can also disperse the fertilizer of caking, improve the fertilizer quality.

Waste gas in the stoving case 1 finally gets into in the butt joint pipe 4 through going out fan housing 3, in rethread rotary joint gets into quill shaft 32, finally in a plurality of holes 33 through the equipartition get into the deodorant of deodorization case 5, first transmission shaft 10 drives quill shaft 32 through third bevel gear pair 9 and rotates simultaneously, it rotates to drive a plurality of mixing blade 31 again, make waste gas and deodorant intensive contact mix, the deodorant can effectively detach the foul substance in the waste gas, finally further adsorb the deodorization through active carbon filter screen 30, the discharge amount of the foul smell among the greatly reduced stoving process.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.

Claims

1. The utility model provides an organic fertilizer drying equipment of sustainable stoving, includes stoving case (1), its characterized in that, stoving case (1) internal fixation installs many parallel arrangement's a stoving section of thick bamboo (12), stoving section of thick bamboo (12) internal rotation is connected with carries axle (19), carry and install on the axle (19) and carry auger (25), the both ends of a plurality of stoving sections of thick bamboo (12) are equipped with feed inlet and discharge gate respectively, a plurality of stoving sections of thick bamboo (12) all be connected with between feed inlet and the discharge gate and to managing (6), the bottom and the top of a stoving section of thick bamboo (12) are equipped with air intake (22) and air outlet (21) respectively, air intake (22) and air outlet (21) extend along the direction of delivery of a stoving section of thick bamboo (12), all install fender net (23) in air intake (22) and air outlet (21), the bottom fixed mounting of a stoving section of thick bamboo (12) has through air intake (22) to blow in hot-blast main (13) of a stoving section of thick bamboo (12), the lateral wall interval rotation of carrying axle (19) is connected with a plurality of rabbling mechanisms (24), deodorization mechanism is installed at the top of stoving case (1).

2. The organic fertilizer drying equipment capable of continuously drying as claimed in claim 1, characterized in that a feed inlet of the upper drying cylinder (12) is connected with a feed hopper (2), and a discharge outlet of the lower drying cylinder (12) is connected with a discharge pipe (7) extending out of the drying box (1).

3. The organic fertilizer drying equipment capable of continuously drying as claimed in claim 1, characterized in that the left side ends of the plurality of conveying shafts (19) extend out of the corresponding drying cylinders (12), the extending ends of the conveying shafts (19) are fixedly connected with worm gears (18), the bottom of the drying box (1) is provided with a first motor (16), and the output shaft of the first motor (16) extends into the drying box (1) and is fixedly connected with a worm (17) engaged with the worm gears (18).

4. The organic fertilizer drying equipment capable of being continuously dried according to claim 1, wherein the stirring mechanism (24) comprises a stirring shaft (28) rotatably connected to the side wall of the conveying shaft (19), the side wall of the stirring shaft (28) is fixedly connected with a plurality of stirring blades (27), the stirring shaft (28) is obliquely arranged and is parallel to the adjacent auger blades of the conveying auger (25), the conveying shaft (19) is internally hollow and is provided with a transmission assembly capable of driving the plurality of stirring shafts (28) to rotate.

5. The organic fertilizer drying equipment capable of continuously drying as claimed in claim 4, wherein the transmission assembly comprises a first transmission shaft (10) rotatably connected to the right side of the drying box (1), the bottom of the drying box (1) is provided with a second motor (8) capable of driving the first transmission shaft (10) to rotate, the conveying shaft (19) is rotatably connected with a second transmission shaft (26), the right end of the second transmission shaft (26) extends out of the drying drum (12) and is in transmission connection with the first transmission shaft (12) through a first bevel gear pair (9), and the stirring shaft (28) is in transmission connection with the second transmission shaft (26) through a second bevel gear pair (29).

6. The organic fertilizer drying equipment capable of continuously drying according to claim 1, wherein a hot air blower (14) is installed at the bottom of the drying box (1), an air outlet pipe (15) is connected to an air outlet end of the hot air blower (14), the hot air ducts (13) are all connected with the air outlet pipe (15), and a plurality of air blowing holes (20) corresponding to the air inlet (22) are formed in the top of each hot air duct (13).

7. The organic fertilizer drying equipment of sustainable drying of claim 1, characterized in that, deodorization mechanism is including installing air-out cover (3) at stoving case (1) top, the air-out end that goes out cover (3) is connected with butt joint pipe (4), deodorization case (5) are installed at the top of stoving case (1), install mixed subassembly in deodorization case (5), send waste gas into deodorization case (5) to butt joint pipe (4), the uncovered setting in top of deodorization case (5), and uncovered department installs active carbon filter screen (30), deodorant has been stored in deodorization case (5).

8. The organic fertilizer drying equipment capable of continuously drying as claimed in claim 7, wherein the mixing component comprises a hollow shaft (32) rotatably connected in the deodorizing box (5), the deodorizing box (5) extends from both ends of the hollow shaft (32), the end of the butt joint pipe (5) is rotatably connected with the left end of the hollow shaft (32) through a rotary joint, a plurality of holes (33) are uniformly distributed on the hollow shaft (32), a plurality of mixing blades (31) are installed on the side wall of the hollow shaft (32), and the right end of the hollow shaft (32) is in transmission connection with the first transmission shaft (10) through a third bevel gear pair (11).

9. The drying method of the organic fertilizer drying equipment capable of continuously drying is characterized by comprising the following specific steps of:

s1, organic fertilizer continuously enters a drying cylinder (12) through a feed hopper (2), the heads and the tails of the drying cylinders (12) are communicated through a connecting pipe (6), and a conveying auger (25) in the drying cylinder (12) continuously conveys the organic fertilizer and uniformly distributes the organic fertilizer in the whole drying cylinder (12);

s2, in the conveying process, starting a hot air blower (14), enabling hot air to enter a plurality of hot air pipes (13) through an air outlet pipe (15), finally entering a drying cylinder (12) through a plurality of air blowing holes (20) through an air inlet (22), enabling the hot air to enter from bottom to top, uniformly conveying the organic fertilizer, and ensuring that the organic fertilizer is sufficiently dried after being conveyed for a certain length;

s3, in the process of conveying and drying, a second motor (8) is started, a plurality of second transmission shafts (26) are driven to rotate through a first transmission shaft (10) and a plurality of first bevel gear pairs (9), a plurality of stirring shafts (28) are driven to rotate through a plurality of second bevel gear pairs (29), stirring blades (27) are driven to rotate between adjacent auger blades, organic fertilizers among the auger blades can be turned, organic fertilizers with certain thickness are turned, hot air can better pass through the organic fertilizers, the drying effect is further improved, the agglomerated organic fertilizers can be dispersed, and the quality of the organic fertilizers is improved;

s4, waste gas in the stoving case (1) finally gets into in butt joint pipe (4) through air-out cover (3), in rethread rotary joint gets into quill shaft (32), finally get into in the deodorant of deodorization case (5) through a plurality of holes (33) of equipartition, quill shaft (32) rotate, it rotates to drive a plurality of mixing blades (31) again, make waste gas and deodorant intensive contact mix, the deodorant can effectively detach the stink material in the waste gas, finally further adsorb the deodorization through active carbon filter screen (30), the discharge amount of the drying in-process foul smell that significantly reduces.