KR101059894B1 - High efficiency drying machine of organic wastes - Google Patents

Abstract

PURPOSE: A high-efficiency organic waste drying device is provided to reduce the drying time because a plurality of crush blades inclines to the eject direction of the organic and fracturing and drain flow of the organic waste are increased. CONSTITUTION: A high-efficiency organic waste drying device(1) comprises first and second inner drums(12, 13), an outer tube(11), a crushing shaft(36), and a plurality of crushing blades(37). First and second outer tubes are rotated to the predetermined speed through the driving means and power transmitting unit. The fracturing shaft is installed inside the first drying room(15) of the first inner drums and is rotated with the other driving means and power transmission method. The fracturing shaft is installed in the center point biased toward one side from a virtual center of the first drying room and the organic waste which is dropping collides into the fracturing shaft and is crushed.

Description

High Efficiency Organic Waste Drying Equipment {HIGH EFFICIENCY DRYING MACHINE OF ORGANIC WASTES}

The present invention relates to a high-efficiency organic waste (or organic waste) drying apparatus, and more specifically, by installing a shredding means provided with a plurality of shredding blades inside the drying chamber of the organic waste drying apparatus to dry the organic waste being crushed The efficiency and discharge flow are greatly improved.

In general, organic wastes (or organic wastes) such as food waste, sewage and wastewater sludge, and livestock waste (including servings) are very susceptible to decay, with a high water content of around 80%, so they can be landfilled, dried, fermented, or incinerated. In case of reclamation in the ground, not only landfill of large size is required but also serious environmental pollution such as soil pollution and groundwater pollution by leachate is not a fundamental solution.

In addition, the incineration of the organic waste not only generates air pollutants such as dioxin, but also has a problem in that a large amount of fuel is consumed because the water content is about 80%, and the organic waste is fermented and used as compost. It takes time and money, and there is a problem in that no harmful gas or bad smell is generated in the fermentation process, and a large amount of salt is included, so that a separate salt treatment process is required.

In order to solve such a conventional problem, a number of methods for carbonizing organic waste and recycling it as a carbide have been devised, but by-products are limited to carbides, and the productivity is low due to low drying and carbonization efficiency, and harmful gases and odors are generated by incomplete combustion. There was a problem such as being.

The present invention is installed in the drying chamber of the organic waste drying apparatus to separate the crushing means (crushing shaft) to be rotated by a separate drive means and power transmission means to increase the drying efficiency of high organic matter waste (around 80%) It is an object of the present invention to provide a high efficiency organic waste drying apparatus in which the discharge flow is greatly improved.

Another object of the present invention is characterized in that the drying efficiency is further improved by increasing the rotational speed of the crushing shaft, which is a crushing means, so that more efficient crushing is made.

Yet another object of the present invention is to install (form) a plurality of shredding blades on the outer circumferential surface of the shredding shaft at predetermined intervals so as to be inclined in a direction in which the organic waste being dried is discharged so as to further improve the shredding and discharge flow of the organic waste. It features.

The high-efficiency organic waste drying apparatus of the present invention has an inner cylinder and an outer cylinder installed on a base and rotated at a predetermined speed by a drive means and a power transmission means, and are installed in a drying chamber formed in the inner cylinder, and further drive means and power transmission. And a crushing shaft which rotates faster than the inner and outer cylinders by means, and a plurality of crushing blades formed at predetermined intervals on the crushing shaft outer circumferential surface.

The crushing shaft is installed at the center point O2 biased in one direction from the virtual center O1 of the drying chamber, so as to more effectively crush freely falling organic waste.

The height of the shredding blade is 1/2 to 2 times the diameter of the shredding shaft, the installation interval of the shredding blade is characterized in that it consists of 2 to 5 times the width of the shredding blade (W1) to effectively shred the organic waste.

The shredding blade is characterized in that it is configured to be inclined so that the organic waste to be dried in consideration of the rotation direction can be effectively transported in the exit direction.

The inclination angle θ1 of the crushing blade is characterized in that 5 ° ~ 20 °.

The rotation speed of the shredding shaft is increased by 10 to 50 times faster than the rotation speed of the inner cylinder and the outer cylinder, so that organic waste is more efficiently (effectively) broken.

According to the present invention, the organic wastes in the form of agglomerates are broken into particles, powders, or small agglomerates of less than 5 mm by a shredding means (crushing shaft) installed inside the drying chamber of the organic waste drying apparatus. The organic waste is dried to less than 10% water content organic waste) is greatly improved, the discharge flow of the organic waste is also greatly improved.

In addition, the present invention by the crushing means (crushing shaft) is installed in the lower portion of the position where the organic waste falls, crushing and scattering the organic waste in the lump state that rises and free-falls inside the drying chamber 10 to 20% It is further improved, and the emission flow is also improved by 10-20%.

In addition, the present invention is a plurality of blades installed on the outer circumferential surface of the crushing shaft is installed inclined in the direction in which the organic waste is discharged is very useful to the effect that the crushing and discharge flow of the organic waste is further improved to shorten the drying time Invention.

1 is a cross-sectional view showing an embodiment of the present invention.
2 is a vertical cross-sectional view showing an example of the present invention.
3 is a left side view showing an example of the present invention.
4 is a right side view showing an example of the present invention.
5 and 6 are cross-sectional views of the use state shown as an example of the present invention.
7 is a partial perspective view of the fracture shaft shown as an example of the present invention.
8 is a front view of the fracture shaft portion shown as an example of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the embodiments of the present invention, the same components as in the drawings are denoted by the same reference numerals as possible, and detailed descriptions of known configurations and functions are omitted so as not to obscure the gist of the present invention.

1 is a configuration diagram of the high efficiency organic waste drying apparatus 1 of the present invention, which is installed on a base and rotates at a predetermined speed by a driving means and a power transmission means, and further drives a drying chamber formed in the inner cylinder. Crushing means that rotates faster than the inner cylinder and the outer cylinder by means and power transmission means, for example, a crushing shaft composed of a plurality of crushing blades at predetermined intervals is installed on the outer peripheral surface of the shaft and powder and the organic waste mass to rise and fall freely in the drying chamber And / or crushed into particles or small lumps less than 5mm, highly efficient organic wastes of about 80% and less than 10% water content are not only highly efficient, but also greatly improve the flow rate of organic wastes and shorten the drying time. do.

The inner cylinder and the outer cylinder, the inlet (2) is supplied with the hot air (which may include a flame) required for drying the input organic waste and the outlet through which the dried and reduced organic waste (or organic waste in the solid state) is discharged ( 3) is a cylindrical drum structure formed on both sides, a two-pass (2-Pass) or three-pass (3-Pass) structure with excellent drying efficiency is preferred, and of course a one-pass (1-Pass) structure Or, it may exceed the three-pass (3-Pass) structure, the present invention takes a three-pass (3-Pass) structure drying apparatus as an example for the convenience and understanding of the description.

The present invention high efficiency organic waste drying apparatus (1) includes support rollers (5), (6), (7) and (8) which are axially mounted on both front and rear portions of the upper part of the base (4), and the support rollers (5) and (6). And a pair of left and right circular rails (9) and (10) rotated by two points mounted on the support rollers (7) and (8), respectively, and a long cylindrical shape coupled to and supported in the circular rails (9) and (10). The outer cylinder 11 of the drum structure, the first inner cylinder 12 installed inside the outer cylinder 11, the second inner cylinder 13 of the cylindrical drum structure installed inside the first inner cylinder 12, and A plurality of spaces 14 provided between the outer cylinder 11 and the inner cylinder 12, 13 so that the predetermined interval and parallel between the outer cylinder 11 and the first inner cylinder 12 and the second inner cylinder 13 are maintained; The first drying chamber 15 formed inside the second inner cylinder 13, the second drying chamber 16 formed between the first inner cylinder 12 and the second inner cylinder 13, the first inner cylinder 12, Inside of the third drying chamber 17 formed between the outer cylinder 11 and the outer cylinder 11 and the first and second inner cylinders 12 and 13. Hot air is installed on the surface and coupled to the plurality of blades (18) (19) (20) and the inlet (2) so as not to contact the plurality of blades (18) (19) and (20) which up and down the organic waste in each drying chamber (15) (16) (17). Organic waste which is installed to incline through the hot air supply pipe 22 of the supply device 21 and the hot air supply pipe 20 so as to inject the organic waste W having a high water content, and then flows into the first drying chamber 15. Supply means 23, the discharge chamber 25 is provided in the outlet (3), the discharge port 26 formed below the discharge chamber 25 so that the dried organic waste can be discharged, and the inlet (2) Exhaust port 27 and exhaust in the upper part of the discharge chamber 25 which cooperates to maintain the smooth flow and discharge through the first, second and third drying chambers 15, 16 and 17 through the hot air supplied to the 1, 2, the circular plate which is installed in the side plate 2a of the inlet 2 side of the outer cylinder 11 as shown in FIGS. 1 and 2 or is fixedly coupled to the outer peripheral surface of the outer cylinder 11 as shown in FIG. To connect the popular gear 29, the reduction motor 30 provided on the base 4, the chain gear 31 provided on the rotation shaft of the reduction motor 30, and the chain gear 29, 31 It consists of a chain 32 and a controller.

The space 14 is a metal that maintains a small diameter and heat resistance that does not prevent drying and movement of the organic waste W while fully supporting the outer cylinder 11 and the first and second inner cylinders 12 and 13 integrally. Rod-like thing is preferable.

The bent portion 20a is formed at the longitudinal ends of the blades 18, 19, and 20 in the direction in which organic waste falls, as shown in FIGS. 5 and 6. Most of the organic waste (W) that rises and rises quickly falls to the lower shredding blade (37), and the free-falling organic waste (W) is scattered while being crushed by hitting the rotary shredding blade (37).

Below the outlet 26, a collecting container 50 provided with a handle 49, or a conveying conveyor for transporting the organic waste in the discharged dry state to a later process is installed.

On the other hand, in the present invention, the crushing means for crushing the organic waste (W) to rise and free fall inside the first drying chamber 15 is provided.

The shredding means has a structure in which both ends of the shredding shaft 36 are pivotally installed on the shaft brackets 34 and 35 respectively installed on the outer wall 33 and the hot air supply pipe 22 of the discharge chamber 25, and the shredding means rotates. Most of the shaft 36 is located in the first drying chamber 15.

On the outer circumferential surface of the shredding shaft 36, a plurality of shredding blades 37 are installed at predetermined heights h1 at predetermined intervals so that free-falling organic waste W collides and is crushed and scattered efficiently.

A bracket 38 is fixed to one side of the outer wall 33 on which the shaft bracket 34 is installed, and the reduction gear motor 39 is installed on the bracket 38, and a spur gear 40 on the rotation shaft of the reduction motor 39. ) Is coupled and fixed, the spur gear 41 is also fixed to the end of the crushing shaft 36 protruding out of the shaft bracket 34, the spur gear 40 and the spur gear 41 mesh with each other. The shattering shaft 36 can be rotated by configuring so that it may rotate.

The crushing shaft 36 is installed in parallel with the first drying chamber 15 or the second inner cylinder 13, but the organic waste W rises along the blade 20 of the second inner cylinder 13 and free-falls. 5, 6, the blade 20 of the second inner cylinder 13 is installed at the center point O2 which is biased in one direction outward from the longitudinal virtual center O1 of the first drying chamber 15 as shown in FIGS. 5 and 6. The organic waste (W) in the free-falling lump state (20 to 50 mm size) hits and rotates the crushing blade 37 to be crushed into a powder or particle state or a small lump less than 5 mm. Scattered (dispersed).

If the height h1 of the shredding blade 37 is too high, the rotational load increases, and if the height h1 is too low, the shredding efficiency decreases, so that 1/2 to 2 times the diameter of the shredding shaft 36 is preferable. If the installation spacing L1 of the crushing blade 37 is too large, the crushing efficiency decreases. On the contrary, if the installation spacing L1 of the crushing blade 37 is too small, the rotational load increases, so that the width W1 of the crushing blade 37 is increased. The installation interval L1 in the range of 2 to 5 times is preferable.

In the present invention, the shredding blade 37 formed on the outer circumferential surface of the shredding shaft 36 has an organic waste W in the outlet 3 direction (A direction in FIG. 8) in consideration of the rotation direction (B direction in FIG. 8). It is configured to be inclined so that efficient transport can be achieved.

For example, as shown in FIG. 8, the inclined structure in which the shredding blade 37 opens toward the exit direction (A direction) of the shredding shaft 36 is inclined, and the inclination angle θ1 is in consideration of the rotational speed of the shredding shaft 36. Is determined. When the inclination angle θ1 of the crushing blade 37 is less than 5 °, the discharge flow of the crushed organic waste W is slow, and the inclination angle θ1 of the crushing blade 37 exceeds 20 °. In this case, the discharge flow of the organic waste (W) is improved, but the shredding efficiency is lowered, so the inclination angle θ1 of the shredding blade 37 is preferably in the range of 5 ° to 20 °.

As described above in the present invention, in order to obtain more efficient crushing efficiency, it is most preferable to install the crushing shaft 36 in the lower portion which rises along the rotating blade 20 and free-falls, and also the outer cylinder 11 and the first The organic waste (W) falling by increasing the rotational speed of the crushing shaft 36 than the rotational speed of the inner cylinder 12 and the second inner cylinder 13 collides more effectively with the crushing blade 37, and thus the crushing and high temperature atmosphere. By being scattered to the first drying chamber 15, the drying efficiency is greatly improved.

For example, when the rotational speed of the outer cylinder 11, the first inner cylinder 12, and the second inner cylinder 13 (which is an integral structure by the space 14) is 4 to 8 RPM, the rotation speed of the crushing shaft 36 is 10 40 to 400 RPM, which is ~ 50 times faster, is preferred.

The rotational direction of the shredding shaft 36 is preferably rotated in the same direction as the second inner cylinder 13 so that the discharge flow of the organic waste (W) is good. Of course, in order to rotate in the opposite direction to the second inner cylinder 13, in consideration of the state to rotate in the opposite direction, the angle of the crushing blade 37 may be configured to open in the discharge direction.

In the present invention, the blades 18, 19, and 20 respectively installed on the inner circumferential surfaces of the outer cylinder 11, the first inner cylinder 12, and the second inner cylinder 13 are the outer cylinder 11 and the first inner cylinder 12; In view of the fact that the second inner cylinder 13 is contracted according to the temperature, it is separated into several pieces as shown in FIGS. 1 and 2 and is installed adjacently. In addition, as the shredding blade 37 is directed toward the direction in which the organic waste W is discharged, the discharge flow of the organic waste W is further improved.

The outlet 3 of the first drying chamber 15 is an open structure connected to the second drying chamber 16 formed between the first inner cylinder 12 and the second inner cylinder 13, and of the second drying chamber 16. The outlet is an open structure connected to the third drying chamber 17 formed between the first inner cylinder 12 and the outer cylinder 11, and the outlet of the third drying chamber 17 is connected to the discharge chamber 25.

The outlet 3 of the first inner cylinder 12 is mostly blocked by the side plate 51, so that hot air and organic waste of the first drying chamber 15 are not discharged directly to the discharge chamber 25, but through the second drying chamber 18. As it is dried to move to the third drying chamber (17).

In the center of the side plate 51 is formed a through hole through which the crushing shaft 36 passes. The side plate 51 rotates along the outer cylinder 11 and the first inner cylinder 12, and the crushing shaft 36, which is one-sided at the center point O2, rotates but its position is fixed, so that the inner diameter of the through hole is crushed. The shaft 36 does not come in contact with each other so that the shredding shaft 36 does not come into contact even when the side plate 51 rotates.

In the case of large through-holes, most of the hot air and organic wastes of the first dry-room 15 are installed by installing high heat-resistant non-asbestos cloth that can withstand the high temperature flowing into the first drying chamber 15 to prevent the through-holes. 2 can be configured to be moved to the drying chamber (16).

Organic waste supply means 23 for supplying the organic waste (W) to the first drying chamber 15 is a cylinder which extends through the hot air supply pipe 22 from the outside to the inlet of the first drying chamber 15. A sieve 42, an inlet 43 formed in the upper portion of the cylindrical body 42 exposed to the outside, the transfer screw 44 coupled to the hollow portion formed inside the cylindrical body 42, the cylindrical body 42 A) a reduction motor 45 is installed at the rear end, and a shaft coupler 46 for axially connecting the rear end of the shaft and the reduction motor 45 of the transfer screw 44.

The hot air supply device 21 is installed on the base 47, the burner 48 is installed at the rear end to supply hot air of 200 ° C to 600 ° C to the inlet of the first drying chamber 15 through the hot air supply pipe 22. do. The hot air supply device 21 is automatically temperature controlled by a temperature sensor installed in the first drying chamber 15 or its surroundings. Since the hot air supply device 21 is a device used in various industrial fields, a detailed description thereof will be omitted.

Although the organic waste supply means 23 is installed to penetrate into the hot air supply pipe 22, since the outer diameter of the cylindrical body 42 is much smaller than the inner diameter of the hot air supply pipe 22, there is no great influence or influence on the hot air supply. .

In the present invention, most parts that are exposed to or exposed to high temperature are made of high heat resistant metal or non-asbestos cloth.

The present invention configured as described above has a high moisture content organic waste of about 80%, which is automatically or manually supplied to the inlet 43, or a high moisture content organic waste of about 80% and 40% to 60% by primary drying. When the mixed organic waste mixed with the organic waste dropped in the water content ratio in a 1: 1 ratio (capacity ratio or volume ratio) is inputted, the organic waste or mixed organic waste is decelerated and rotated by the transfer screw 44 to form the first drying chamber 15. It is supplied to and dried and transported by hot air, and is discharged to the discharge chamber 25 while being dried via the second drying chamber 16 and the third drying chamber 17.

In the present invention, the inlet 2 of the first inner cylinder 12 is introduced so that the end of the hot air supply pipe 22 does not contact, and the organic waste supplied to the first drying chamber 15 and hot air at 200 ° C. to 600 ° C. Due to the discharge action of the first inner cylinder 12 blade 19 and the exhaust action of the exhaust fan 28, the organic waste W is dried while moving in the direction of the outlet 3 without being flowed back to the inlet 2 side. In the process, the organic waste W in the lump state (unspecified shape of 20 to 50 mm size) that rises along the blades 20 of the second inner cylinder 13 and free-falls collides with the rapidly rotating crushing blade 37. It is crushed and scattered in the form of small agglomerates or particles or powders of less than 5 mm in size, and rapidly moves to the inside of the organic waste (W) by hot air and a high temperature atmosphere, and moves in the direction of the outlet (3). Flows into the second drying chamber 16 by the side plate 51 in the direction; It is further dried while moving toward the inlet 2 by the discharge action of the rod 19 and the discharge action of the exhaust fan 28, and enters the third drying chamber 17 by the side plate 2a on the inlet 2 side. Then, by the discharge action of the blade 18 of the outer cylinder 11 and the discharge action of the exhaust fan 28, it is further dried while moving in the direction of the outlet 3, and then through the discharge chamber 25 and the lower outlet 26. 2 is discharged to the container 50 (the E direction in FIG. 2), and the moisture generated in the drying process is whitened and is discharged to the outside by the discharge action of the exhaust fan 28 (the D direction in FIG. 2).

High-efficiency organic waste drying apparatus 1 of the present invention is a three-pass (excellent drying efficiency (drying performance) for organic waste of high moisture content (about 80%), such as sewage sludge, shaft (including serving), food waste The outer cylinder 11 of the 3-Pass structure, and the first and second inner cylinders 12, 13 and the crushing shaft 36 are dried and treated very efficiently, but the water content of 10% or less The solids may be used as solid fuel, or the first dried organic waste may be carbonized by a carbonization apparatus (not shown) to obtain a carbide.

In the present invention, organic waste is more efficiently dried by a three-pass structure and a rotation of an inner and outer cylinder sequentially passing through the first, second and third drying chambers 15, 16 and 17, wherein organic waste is dried. The efficiency is improved by about 40% compared to the conventional drying apparatus of the two-pass structure, the drying efficiency is further improved by 10 to 20% by crushing the crushing blade 37, the discharge flow of organic waste (W) by crushing 10 ~ 20% improvement

In the present invention, a high heat resistant non-asbestos cloth is installed between the outer wall 33 and the outer cylinder 11 to prevent leakage of hot air from the discharge chamber 25 and the organic waste in the dry state between the outer wall 33 and the outer cylinder 11. do. The non-asbestos cloth is fixed to the outer wall 33 and has a structure in contact with the rotating outer cylinder 11 to be kept airtight.

In the present invention, after the exhaust fan 28, an exhaust purification apparatus, for example, an adsorption tower in which activated carbon is installed, is purged and exhausted. The odor generated during the drying process is collected and then transferred to a deodorization facility for deodorization. It is desirable to.

Carbide obtained by the carbonization treatment after the first drying in the present invention is a land-improving agent, fertilizer, deodorant and adsorbent of advanced sewage treatment plants and polluted streams, nutrient removal agents such as phosphorus, nitrogen, seabed lipid improver, red tide bioremediation, marine artificial It can be used as a substitute for chips, oil absorption, absorption, and other uses of marine preservatives such as fish reefs, and sound-absorbing and sound-proofing agents (used after forming into brick panels).

The organic wastes treated in the present invention are high moisture (≒ 80%), and therefore have low drying efficiency due to high viscosity and adhesion and low surface area, but have a 3-pass structure outer cylinder 11 and first, Secondary drying is performed by the second inner cylinders 12 and 13, so that the moisture is greatly reduced and dispersed, thereby increasing the surface area and improving drying efficiency.

The present invention described above is not limited to the present embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention, and this is in the technical field to which the present invention belongs. It is self-evident for those of ordinary knowledge.

(1)-High Efficiency Organic Waste Drying Equipment (2)-Inlet
(2a)-side plate (3)-outlet
(4) (47)-Expectation (5) (6) (7) (8)-Support Roller
(9) (10)-round rail (11)-outer
(12)-First Inner Cylinder (13)-Second Inner Cylinder
(14)-Space (15)-First Drying Chamber
(16)-second drying chamber (17)-third drying chamber
(18) (19) (20)-Blade (21)-Hot Air Supply
(22)-Hot air supply pipe (23)-Organic waste supply means
(25)-Outlet Room (26)-Outlet
(27)-Exhaust vent (28)-Exhaust fan
(29) (31)-Chain Gear (30)-Reduction Motor
(32)-Chain (33)-Outer Wall of the Outlet
(34) (35)-Shaft Bracket (36)-Crushing Shaft
(37)-Crushing Blades (38)-Bracket
(39)-Reduction Motor (40) (41)-Spur Gear
(42)-cylinder (43)-inlet
(44)-Transfer Screw (45)-Reduction Motor
(46)-Shaft Coupler (48)-Burner
(49)-Handle (50)-Basket
(h1)-height of the shredding blade (O1)-virtual center
(O2)-Center of gravity (W)-Organic waste

Claims (5)

First and second inner cylinders and outer cylinders installed on the base and rotating at a predetermined speed by the driving means and the power transmission means, and are installed in the first drying chamber formed in the first inner cylinder, and are connected to the other driving means and the power transmission means. A high efficiency organic waste drying apparatus comprising a crushing shaft rotated by a plurality of crushing blades and a plurality of crushing blades formed at predetermined intervals on the crushing shaft outer circumferential surface;
The crushing shaft is installed in the center point (O2) biased in one direction from the virtual center (O1) of the first drying chamber so that the falling organic waste collides to be broken;
The height of the crushing blade is 1/2 to 2 times the diameter of the crushing shaft, the installation interval of the crushing blade is 2 to 5 times the width of the crushing blade (W1), the inclination angle (θ1) of the crushing blade is 5 ° ~ 20 ° The rotation speed of the crushing shaft is a high efficiency organic waste drying apparatus, characterized in that 10 to 50 times faster than the rotation speed of the first and second inner and outer cylinders. delete delete delete delete

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