KR20230103413A - A fire prevention structure of dry-apparatus for a waste recycle - Google Patents

Abstract

The present invention relates to a fire prevention structure of a drying apparatus for recycling waste, and more particularly, by installing an inspection window in an inlet into which waste is introduced and a drying pipe in which waste is dried, and through the inspection window, waste debris, which is the cause of ignition, It relates to a fire prevention structure of a drying apparatus for recycling waste, in which a worker enters an inlet and a drying pipe through an inspection vehicle so that the inspection and cleaning work can be easily performed.
To this end, an input hopper is installed so that the waste medium can be introduced by falling from the top; A discharge unit provided with a discharge hopper so that the dried waste medium can be discharged by falling downward; a drying tube installed to be rotatable between the inlet and the outlet and providing a drying space in which waste medium can be transported from the inlet to the outlet; It is installed on one side of the inlet and includes a hot air supply means installed to supply high-temperature hot air to the inside of the drying tube through the inlet, and at least one of the inlet and the drying tube has an access hole through which the inside and the outside communicate, and the It provides a fire prevention structure of a drying apparatus for recycling waste, characterized in that an inspection window for opening and closing the entrance hole is installed.

Description

A fire prevention structure of dry-apparatus for a waste recycle}

The present invention relates to a fire prevention structure of a drying apparatus for recycling waste, and more particularly, by installing an inspection window at an inlet through which waste is introduced and a drying pipe where the waste is dried, for convenience in removal of debris and maintenance. It is about a fire prevention structure of a drying device for waste recycling with increased

As a high-protein food, mushrooms are expected to be a food that can replace meat in the future, and in particular, as their efficacy has been proven through various research reports, they are receiving intensive attention as a health food as well as a food substitute. These mushrooms are cultivated through the process of medium material preparation, watering, sterilization, spawn planting, medium survival, mushroom harvesting, medium closure, etc. Among the various requirements to increase the success rate of mushroom cultivation, the most important is the medium. can This is because the success rate of mushroom cultivation varies greatly depending on the moisture absorption and sterilization effect of the medium. On the other hand, mushrooms are harvested through an organic process for dozens of days. At this time, the medium remaining after harvesting mushrooms is called a spent mushroom substrate (SMS), and it is estimated that about 5 kg is generated to produce 1 kg of mushrooms. These waste media are discharged in various ways depending on the type of mushroom, media composition and cultivation method (bottle cultivation, bag cultivation, fungal bed cultivation, etc.), and some are used as organic compost or

It is used as a moisture control agent in the manufacture of compost, but a significant amount of mushroom waste medium is left in the field due to an inappropriate treatment method, causing environmental pollution and odor generation, causing civil complaints from nearby residents. Therefore, it is necessary to recycle the waste medium more efficiently, and since the mushroom waste medium has a significant calorific value in terms of thermal efficiency, devices for using them as solid fuel are being studied. At this time, there is a moisture content (含水率) as an important factor determining the quality of the solid fuel, such as the mushroom waste medium, it is important to minimize the moisture content in the drying process in order to produce high-quality solid fuel.

Meanwhile, a 'waste medium transfer drying device' has been developed through 『Korean Patent Publication No. 10-2015-0048464』. The waste medium transfer drying device is installed in a drying housing 10 that puts the waste medium of grinding into the drying chamber 11 through the input hopper 12 and discharges it after drying, and the drying chamber 11 of the drying housing 10, A stirrer 30 in which the rotary shaft 20 is formed as a steam discharge pipe to radially discharge dry steam on the center line of the drying chamber 11, and steam for supplying high-temperature dry steam in communication with the steam discharge pipe of the stirrer 30 It is composed of the supply unit 40 as a basic feature in its technical configuration. The steam supply unit 40 generates high-temperature steam in the steam boiler 41 and connects the superheated steam generator 42 to the discharge end of the steam boiler 41, but heats the high-temperature steam again in the superheated steam generator 42. The high-temperature dry steam is supplied to the drying chamber 11. The mushroom waste medium dried in the drying chamber 11 is transported by the agitator 30 and discharged to the outlet 50.

However, the conventional drying apparatus described above has a problem of being vulnerable to fire hazard. That is, the drying apparatus has a problem in that waste medium debris generated during the drying process is deposited inside the drying chamber 11, and high-temperature hot air generated from the steam supply unit 40 may ignite the accumulated waste medium debris. In particular, one end of the drying chamber 11 located below the input hopper 120 has a high possibility of remaining waste medium debris and is closest to the steam supply unit 40, so the risk of fire is high.

Republic of Korea Publication No. 10-2015-0048464

The present invention has been made to solve the above problems, and an object of the present invention is to install an inspection window through which the inside and outside pass through the dryer so that waste medium debris inside the dryer can be easily treated, and the speed of the hot air blower It is intended to provide a fire prevention structure of a drying apparatus for recycling waste that can prevent fire caused by waste medium debris inside the dryer by automatically controlling.

In order to achieve the above object, the present invention includes an inlet unit equipped with an input hopper so that waste medium can be introduced by falling from above; A discharge unit provided with a discharge hopper so that the dried waste medium can be discharged by falling downward; a drying tube installed to be rotatable between the inlet and the outlet and providing a drying space in which waste medium can be transported from the inlet to the outlet; It is installed on one side of the inlet and includes a hot air supply means installed to supply high-temperature hot air to the inside of the drying tube through the inlet, and at least one of the inlet and the drying tube has an access hole through which the inside and the outside communicate, and the It provides a fire prevention structure of a drying apparatus for recycling waste, characterized in that an inspection window for opening and closing the entrance hole is installed.

At this time, it is preferable that the entrance hole installed in the inlet portion is opened downward.

At this time, the inspection windows are hinged to each side of the entrance hole and provided as a pair installed to be rotated toward the center of the entrance hole, and the rotation of the inspection vehicle can be restricted by restraining the part where the pair of inspection windows come into contact. Preferably, restraining means are provided.

In addition, the hot air supply means includes a boiler for producing high-temperature heat through fuel, and a hot air blower for blowing heat generated from the boiler to the inlet and the drying pipe, and the outlet includes a suction force in the drying pipe. It is preferable that a means for generating suction is installed.

At this time, it is preferable to include a timer for checking the operating time of the hot air blower and a control unit provided to control the operation of the hot air blower for each time set through the timer.

In addition, it is preferable that the drying tube is formed of a circular tube body, divided into a plurality and coupled to each other.

The fire prevention structure of the drying apparatus for recycling waste according to the present invention has the following effects.

First, the present invention installs an inspection window in the tubular drying tube so that the operator can go in and out of the drying tube through the inspection window, so that waste medium debris inside the drying tube can be easily cleaned. Accordingly, the present invention has an effect of preventing the occurrence of fire in the drying apparatus because there is no fear of ignition of waste medium debris by hot air during the drying process.

Second, in the present invention, the drying pipe is provided in a rotatable type, and a fixed type inlet is installed at one end of the drying pipe, so that the waste medium does not flow directly into the drying pipe, but through the inlet to the drying pipe. is introduced At this time, since the inspection window is also installed in the inlet of the present invention, the operator can easily discharge waste medium debris accumulated in the inlet through the inspection window. Accordingly, the present invention can easily treat the waste medium debris, which is the cause of ignition, remaining in the inlet, and thus has an effect of preventing the risk of fire.

Third, since only the drying pipe is rotated based on the fixed inlet, the waste medium accumulated in the inlet can be discharged even without stopping the rotation of the drying pipe. Accordingly, the present invention has an effect of increasing the efficiency of the drying operation because it is possible to minimize the delay in working time. Furthermore, the present invention has an effect of increasing drying efficiency and reducing drying pipe failures because the waste medium is pre-dried at the inlet and introduced into the drying pipe in a state in which the moisture content is reduced.

Fourth, the present invention has an effect of preventing the risk of fire due to overheating of the inside of the drying pipe by controlling the rotational speed of the hot air blower at regular intervals through a timer.

1 is a view schematically showing a drying apparatus according to the prior art.
2 is a block diagram showing a fire prevention structure of a drying apparatus for recycling wastes according to a preferred embodiment of the present invention.
3 is a side view showing a fire prevention structure of a drying apparatus for recycling wastes according to a preferred embodiment of the present invention.
Figure 4a is a perspective view showing an inlet in the fire prevention structure of the drying apparatus for recycling wastes according to a preferred embodiment of the present invention.
Figure 4b is a front view showing an inlet in the fire prevention structure of the drying apparatus for recycling wastes according to a preferred embodiment of the present invention.
5 is a cross-sectional side view showing an inlet in a fire prevention structure of a drying apparatus for recycling wastes according to a preferred embodiment of the present invention.

The terms or words used in this specification and claims are not limited to the usual or dictionary meanings, and the inventor can properly define the concept of the term in order to explain his or her invention in the best way. Based on this, it should be interpreted as a meaning and concept consistent with the technical spirit of the present invention.

Hereinafter, a fire prevention structure of a drying apparatus for recycling wastes according to a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 5 attached thereto.

The fire prevention structure of the drying device for waste recycling prevented fire hazards that may occur during drying operations for waste recycling in advance. At this time, the fire protection structure of the drying device for recycling waste can be applied to various waste drying operations, and in this specification, a drying device for recycling waste mushroom medium as solid fuel will be described as an example. In addition to the waste mushroom medium, cow manure may also be applied to the waste.

As shown in FIGS. 2 and 3, the fire prevention structure of the dryer for recycling waste includes an inlet 100, an outlet 200, a drying pipe 300, and a hot air supply unit 400. include

The inlet 100 is a configuration into which the waste mushroom medium is introduced, and is a configuration in which the waste mushroom medium is first introduced before flowing into the drying pipe 300. The inlet 100 is installed at one end of the drying tube 300, and the input hopper 110 is installed at the top so that the mushroom waste medium can fall into the inlet 100. The inlet 100 is preferably provided as a hollow tube through which both sides pass, and is formed to have a larger inner diameter than the outer diameter of the drying tube 300 for rotation of the drying tube 300. One end of the inlet 100 configured as described above is connected to the hot air supply means 400, and the other end of the inlet 100 is connected to the drying pipe 300 so that the hot air is blown into the drying pipe 300. is provided as On the other hand, as shown in FIG. 4A, an access hole 120 penetrating the inside and outside of the inlet 100 is formed at the bottom of the inlet 100, and an inspection window 130 opening and closing the access hole 120 is installed The entrance hole 120 serves to allow workers to come in and out to inspect the inside of the inlet 100, and is configured to arbitrarily discharge mushroom waste medium debris accumulated in the inlet 100 to the outside. It is preferable that the entrance hole 120 has a shape corresponding to the curvature of the inner circumferential surface of the inlet 100 . The inspection window 130 serves to open and close the entrance hole 120, and is preferably provided as a pair hinged to both sides of the entrance hole 120. With this configuration, the inspection window 130 is rotated around the hinge by its own weight to maintain a state in which the entry/exit hole 120 is opened. At this time, as shown in FIG. 4A , at an end of the inspection window 130 , a restraining hole 131 is formed, and the restraining hole 131 is alternately arranged between the pair of inspection windows 130 . At this time, a restraining pin 132 passing through the restraining hole 131 and restricting rotation of the inspection window 130 is provided. The inspection window 130 is preferably made of a transparent material so that the inside of the inlet 100 can be checked. On the other hand, as shown in FIG. 5, the ball plunger 140 is installed at the end of the inspection window 130, and the ball plunger 140 is supported at the end of the entrance hole 120 corresponding to the ball plunger 140. A support groove 150 is formed. The ball plunger 140 is a component for provisional assembly of the inspection window 130, and when the inspection window 130 is rotated to close the entry/exit hole 120, the inspection window 130 through the operation of the ball plunger 140 It can be temporarily assembled to the inlet (100).

The discharge unit 200 is configured to discharge the dried waste medium to the outside of the drying tube 300 through the drying tube 300, and as shown in FIG. 3, the other side of the drying tube 300 installed at the end The discharge unit 200 is formed to have a larger inner diameter than the outer diameter of the drying tube 300 so that the drying tube 300 can be rotated, and a discharge hopper is placed at the bottom of the discharge unit 200 so that the waste medium can fall naturally. 210 is installed. Meanwhile, a suction means 220 serving to increase drying efficiency by discharging water vapor generated inside the drying tube 300 to the outside of the drying tube 300 is installed in the discharge unit 200 . The suction means 220 includes a suction pipe 221 installed on the top of the discharge unit 200 and a suction fan 222 generating suction power.

The drying tube 300 is installed between the inlet 100 and the outlet 200 to dry the mushroom waste medium introduced into the inlet 100. The drying pipe 300 is preferably provided as a long pipe body, and is installed to be rotatable between the inlet 100 and the outlet 200. To this end, a driven gear 310 is installed on the outer circumferential surface of the drying pipe 300, and a driving gear 320 and a driving gear 320 that can be engaged with the driven gear 310 are installed below the drying pipe 300. A power unit 330 generating power to rotate is installed. In addition, a guide ring 340 is installed on the outer circumferential surface of the drying tube 300 so that the rotation of the drying tube 300 can be smoothly performed, and a guide coupled to the guide ring 340 is installed below the guide ring 340. A roller 350 is installed. In addition, although not shown, a transfer means (not shown) capable of transferring the waste medium from the inlet 100 side to the outlet 200 side is installed inside the drying tube 300. On the other hand, it is preferable that the drying pipe 300 is divided as shown in FIG. 3 . As the drying pipe 300 is divided, maintenance of the inside of the drying pipe 300 can be easily performed. For example, when replacing the drying tube 300, there is a feature that can reduce maintenance costs through partial replacement. Flanges are formed at both ends of the plurality of divided drying tubes 300, and the entire drying tube 300 is completed through bolt coupling of the flanges between neighboring drying tubes 300. On the other hand, the drying pipe 300 is installed with a downward slope from the inlet side 100 toward the outlet side 200. This is to ensure that the waste medium is smoothly transported inside the drying pipe 300. Meanwhile, it is preferable that an inspection window 360 is installed in the drying pipe 300 as in the inlet 100 . Since the operator can enter and exit the drying pipe 300 through the inspection window 360, cleaning the inside of the drying pipe 300 can be easily performed, and maintenance work such as parts replacement can be easily performed. . The inspection window 360 is preferably made of a transparent material, and is hinged to the drying tube 300 so as to rotate around the hinge.

The hot air supply means 400 supplies heat to the inside of the drying tube 300 to produce a heat source for drying the waste medium. The hot air supply means 400 is provided to supply high-temperature heat through the inlet 100, and as shown in FIG. 3, the boiler 410, the regenerator 420, and the hot air blower 430 includes The boiler 410 generates heat using fuel as an energy source, and the type of fuel is not particularly limited, but is preferably a solid fuel such as pellets. The heat storage 420 is installed to accumulate high-temperature heat produced from the boiler 410 and to be blown toward the inlet through the hot air blower 430. As described above, the hot air blower 430 serves to blow heat from the regenerator 420 to the inlet 100. At this time, ON/OFF and blowing speed of the hot air blower 430 are controlled through the control unit 500. Meanwhile, the controller 500 includes a timer 510, and the timer 510 serves to count the drying time. That is, if the drying time is excessively long, the inside of the drying pipe 300 may be overheated, and the waste medium debris remaining or deposited inside the drying pipe 300 may be ignited without being discharged through the discharge unit 92000. , The drying time can be limited through the time setting of the timer 510. At this time, the drying operation can be completely turned off by setting the timer 510, and the control unit 500 can control the blowing speed of the hot air blower 430 to prevent the inside of the drying tube 300 from overheating.

Hereinafter, a drying process of the drying device through the fire prevention structure of the drying device for recycling wastes having the above configuration will be described.

The operator operates the boiler to produce heat, and blows hot air into the drying tube 300 through the hot air blower 430 to preheat the inside of the drying tube 300 . After that, the worker supplies waste mushroom medium or cow manure to the input hopper 110. At this time, the mushroom waste medium is automatically supplied to the input hopper 110 through a transfer conveyor (not shown), and then falls to the bottom of the inlet 100 through the input hopper 110. At this time, the moisture content of the mushroom waste medium is usually 65% to 90%. Thereafter, the mushroom waste medium dropped to the bottom of the inlet 100 through the input hopper 110 is transferred to the inside of the drying pipe 300, and the mushroom waste medium is generated from the hot air blower 430 of the hot air supply means 400 It is transported into the drying pipe 300 by wind power (positive pressure) and wind power (negative pressure) generated from the suction fan 222 of the suction means 220 installed in the discharge unit 200.

Thereafter, the waste mushroom medium transported into the drying tube 300 is dried by hot air while passing through the drying tube 300, and the mushroom waste medium is transported inside the drying tube 300 through a transfer means (not shown). However, since the drying tube 300 is installed at an angle, the waste medium of mushrooms can be smoothly transported. At this time, the operator can visually check the drying process inside the inlet 100 and the drying pipe 300 through the transparent inspection windows 130 and 360 . On the other hand, steam and odor generated in the process of drying inside the drying pipe 300 are discharged through the suction pipe 221 of the suction means 220, and the dried mushroom waste medium is discharged from the discharge hopper 210 of the discharge unit 200. ) through which it naturally falls downward and is discharged.

On the other hand, the operator periodically checks the inside of the drying device to prevent fire in the drying device, and in particular, discharges waste medium debris accumulated in the inlet 100. To this end, the operator releases the restraint of the inspection window 130 by separating the restraining pin 132 from the restraining hole 131 . At this time, the inspection window 130 does not rotate immediately because the restraining pin 132 is separated, and since the ball plunger 140 is supported by the inlet 100, the inspection window 130 does not rotate immediately. . Thereafter, when the operator arbitrarily pulls the inspection window 130 downward, the moment the ball plunger 140 is released from the support groove 150, the inspection window 130 is rotated downward by its own weight to open the access hole 120. open up At this time, the mushroom waste medium crumbs accumulated inside the inlet 100 are automatically discharged downward through the entrance hole 120, and the operator enters the inlet 100 through the entrance hole 120 to perform cleaning work. can In addition, by opening the inspection window 360 installed in the drying pipe 300, the operator enters the drying pipe 300 to perform cleaning work, so that the drying device can be safely and easily managed, and the mushroom waste medium residue The risk of fire can be prevented by

As described so far, the fire prevention structure of the drying apparatus for recycling waste according to the present invention constitutes the inlet 100 and the outlet 200 on both sides of the drying pipe 300, and the inlet 100 and the dryer Inspection windows 130 and 360 are formed in the pipe 300 so that waste medium debris that can cause a fire can be easily and safely taken out. Accordingly, the present invention can prevent the occurrence of fire in advance during the drying operation of the waste medium.

Although the present invention has been described in detail with respect to the described embodiments, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and these changes and modifications belong to the appended claims.

100: inlet 110: input hopper
120: entrance 130,360: inspection window
131: restraint ball 132: restraint pin
200: discharge unit 140: ball plunger
150: support groove 210: discharge hopper
220: suction means 221: suction pipe
222: suction fan 300: drying pipe
310: driven gear 320: drive gear
330: power unit 340: guide ring
350: guide roller 400: hot air supply means
410: boiler 420: heat storage
430: hot air blower 500: control unit
510: timer

Claims (6)

An inlet where an input hopper is installed so that waste medium can be introduced by falling from above;
A discharge unit provided with a discharge hopper so that the dried waste medium can be discharged by falling downward;
a drying tube installed to be rotatable between the inlet and the outlet and providing a drying space in which waste medium can be transported from the inlet to the outlet;
It is installed on one side of the inlet and includes a hot air supply means installed to supply hot air to the inside of the drying pipe through the inlet,
A fire prevention structure of a drying apparatus for recycling waste, characterized in that at least one of the inlet and the drying pipe is provided with an entrance hole through which the inside and outside communicate and an inspection window for opening and closing the entrance hole. According to claim 1,
The fire prevention structure of the drying apparatus for recycling waste, characterized in that the entrance hole installed in the inlet is opened downward. According to claim 2,
The inspection windows are provided as a pair hinged to each side of the access hole and installed so as to be rotated toward the center of the access hole, and restraints capable of restraining the rotation of the inspection vehicle by restraining the part where the pair of inspection windows meet. A fire protection structure of a drying apparatus for recycling waste, characterized in that means are provided. According to any one of claims 1 to 3,
The hot air supply means includes a boiler for producing high-temperature heat through fuel, and a hot air blower for blowing heat generated from the boiler to the inlet and the drying pipe,
The fire prevention structure of the drying apparatus for recycling waste, characterized in that the suction means for generating a suction force in the drying tube is installed in the discharge unit. According to claim 4,
A fire prevention structure of a drying apparatus for recycling waste, characterized in that it includes a timer for checking the operating time of the hot air blower, and a control unit provided to control the operation of the hot air blower for each time set through the timer. According to any one of claims 1 to 3,
The fire prevention structure of the drying apparatus for recycling waste, characterized in that the drying tube is made of a circular tube body, divided into a plurality and coupled to each other.

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