KR20170046865A - Discharge screw conveyor device having a earth and sand sorting function - Google Patents

Discharge screw conveyor device having a earth and sand sorting function Download PDF

Info

Publication number
KR20170046865A
KR20170046865A KR1020150146853A KR20150146853A KR20170046865A KR 20170046865 A KR20170046865 A KR 20170046865A KR 1020150146853 A KR1020150146853 A KR 1020150146853A KR 20150146853 A KR20150146853 A KR 20150146853A KR 20170046865 A KR20170046865 A KR 20170046865A
Authority
KR
South Korea
Prior art keywords
screw
dried material
transferring
earth
sand
Prior art date
Application number
KR1020150146853A
Other languages
Korean (ko)
Inventor
정두수
Original Assignee
(주)다산기술
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)다산기술 filed Critical (주)다산기술
Priority to KR1020150146853A priority Critical patent/KR20170046865A/en
Publication of KR20170046865A publication Critical patent/KR20170046865A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/04—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/10—Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates
    • B04B7/16—Sieves or filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
    • B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G33/00—Screw or rotary spiral conveyors
    • B65G33/24—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screw Conveyors (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention relates to a screw conveyor device for discharging a dried material having an earth and sand sorting function. The screw conveyor device has a function of sorting earth and sand included in a dried material discharged from a dryer for drying household waste, while transferring the dried material. The screw conveyor device comprises: a conveyor body for providing a pathway for transferring the dried material, and having a discharge hole formed therein to discharge sorted earth and sand to a bottom side by a dead load; a dried material transferring screw installed in the conveyor body, and transferring the dried material; a cylindrical screen disposed in the discharge hole part of the conveyor body in a cylindrical shape having multiple scales formed thereon so as to sort earth and sand in a transferring step performed by the dried material transferring screw; an earth and sand discharge port connected with the discharge hole of the conveyer body, and transferring earth and sand coming from the discharge hole; and a screw driving unit connected with a rotation axis of the dried material transferring screw, and driving the dried material transferring screw. A cylindrical screen is additionally formed on a dried material discharging screw conveyor, a dried material is transferred and earth and sand are sorted through grain size sorting. A dried material transferring screw for transferring earth and sand and a cylindrical screen for sorting earth and sand by grain sizes are rotated together, so an effect in preventing the stopping of scales of a cylindrical screen and a sorting effect are highly ensured. Early abrasion of each facility is prevented, and the quality of a produced fuel can be improved.

Description

[0001] The present invention relates to a screw conveyor device for discharging dry matter having a soil sorting function,

In particular, the present invention relates to a device for adding to a system for treating municipal waste and energizing the municipal waste. In particular, the present invention relates to a device for extracting dry matter from a dry conveyor for conveying dried matter discharged from a dryer for drying municipal waste, ≪ / RTI >

Domestic waste treatment is based on landfill and incineration methods.

The landfill method has advantages such as low construction cost and waste disposal cost, but it requires a lot of space and causes environmental pollution due to leachate caused by organic matter, and it is difficult to obtain landfill due to insufficient remaining capacity of landfill and difficulty in securing new landfill .

As a result of the above problems, the government has promoted incineration as a major policy to reduce landfill volume.

The incineration method has a merit that the space for treating wastes is small, the amount of landfill can be reduced to about 20%, and the heat generated in the incineration process can be used.

However, the incineration method requires a considerable amount of construction costs and waste disposal costs. Especially, the incineration process of organic wastes generates harmful substances such as dioxins, toxic substances such as heavy metals are discharged, and maintenance is very difficult have.

In addition, the increase in the amount of heat generated in the waste causes inefficient operation of the municipal waste incineration facility.

In addition, the incineration method can be economically secured by having the premise that it can supply electricity and can use the incineration waste heat directly in the vicinity of the incineration facility. However, application is limited in the case of small and medium-sized cities except the metropolitan city, There is a problem of pollutants emission and environmental pollution, so it is almost impossible to install a new incinerator on the contrary of local residents.

In order to solve the problems of the incineration method, the government introduced the mechanical-biological waste treatment (MBT) system which processes the waste mechanically / biologically in order to recycle the waste, so that the combustible material contained in the municipal waste is solid waste (Solid Refuse Fuel, SRF), and is gradually diffusing the municipal solid waste fuels facility to incinerate only incombustible materials.

When municipal waste is treated by the MBT method, the amount of landfill can be reduced to 10% or less.

In addition, MBT is a waste disposal method that combines the mechanical waste treatment (MT) method with the biological treatment (BT) method of the garbage. There is an advantage that the circulation of resources occurs by producing solid fuel.

Especially, it has a low operating cost and low installation cost compared to the incineration method.

In this way, it is very important to select incombustibles such as moisture and soil from municipal wastes as MBT is a process of converting combustible wastes contained in municipal wastes into fuel.

Particularly, since moisture acts as a factor to exert an absolute influence on calorific value and sorting efficiency, it is necessary to select a moisture (dry process) to remove water in advance in selecting incombustibles such as soil.

When the moisture contained in the municipal waste is not sufficiently removed, the moisture is changed into a sticky state by digestion (fermentation) together with the organic substances contained in the waste, thereby acting as an adhesive that bonds the combustible waste and the incombustible matter together, It is a major cause of decreased efficiency.

Therefore, in most MBT systems, a drying process is carried out to form a process for removing moisture and thereby increasing the incombustible sorting efficiency.

Drying methods are applied in many ways, but the most common types of waste are paper (including pulp) and some amount of fiber. Therefore, it is impossible to remove moisture from the mechanical sorting line. .

However, in the case of such a drying method, the glass bottles are broken by forcible agitation and separated into solid fragments (soil, briquette, etc.) which are already mixed with the solid waste. Such incombustible materials are used in a process of energy- Which causes premature wear of each facility such as transportation, sorting, crushing, molding, etc. installed at the rear end, which increases the maintenance cost, and the produced fuel has a high incombustible content and low calorific value.

Therefore, a separate particle sizing means is required to select such incombustibles in the drying process.

The present invention provides a screw conveyor apparatus for discharging dry matter, which is designed to solve the above-mentioned problems, and is provided with a particle sorting function for a dry conveyor for discharging dry matter, which is always attached to the downstream end of a dryer, And to provide a device capable of sorting out an image.

It is also an object of the present invention to provide a screw conveyor device for dry matter discharge which prevents clogging of snow on a screen for screening soil.

It is also an object of the present invention to provide a screw conveyor apparatus for discharging dry matter having a relatively high sorting efficiency of soil.

Furthermore, there is provided a screw conveyor device for dry matter discharge, which can prevent premature wear of each facility such as transportation, sorting, crushing and molding, which is installed at the end of the drying process through sorting of soil, and can improve the quality of produced fuel .

In order to accomplish the above object, according to the present invention, there is provided a system for treating municipal solid waste, comprising: a screw conveyor device for discharging a dry matter for transferring a dry matter discharged from a dryer for drying municipal waste; A conveyor body provided with a passage through which the dried material is conveyed and formed with a discharge hole through which discharged sludge is discharged by its own weight; A drying material transfer screw installed in the conveyor body to transfer the dried material; A cylindrical screen positioned at a discharge hole portion of the conveyor body in a cylindrical shape having a plurality of openings for sorting the soil during the process of being transported by the dry material transporting screw; A soil discharge unit connected to the discharge hole of the conveyor body to transfer the soil discharged from the discharge hole; And a screw driver connected to the rotary shaft of the dry material conveyance screw to drive the dry material conveyance screw.

Further, the conveyor body is of a closed type, and the upper cover is separated.

Further, the dried material conveying screw further comprises one to four agitating blades per pitch, so that the dried material is stirred while being conveyed.

In addition, the cylindrical screen is integrally rotated with the dried material conveying screw.

The gravel discharge unit includes a gravel moving unit for moving the selected gravel by engaging with the discharge hole of the conveyor body, and a rotary valve coupled to the end of the gravel moving unit to discharge the gravel. .

Further, the gravel-moving unit is a screw conveyor.

The present invention has the effect of sorting the soil along with the conveyance of the dried matter by sorting the granules by adding a cylindrical screen to the dried conveyor for discharging the dried matter, which is always attached to the downstream end of the dryer.

In addition, there is an effect of preventing the clogging of the cylindrical screen by causing the drying-material conveying screw for conveying the soil to rotate together with the cylindrical screen for screening the soil.

In addition, there is an effect of increasing the sorting efficiency of the soil by stirring the dried material while transferring the dried material by adding agitating blades to the dried material transporting screw.

Furthermore, it is possible to prevent premature wear of each facility, such as transportation, sorting, crushing, and molding, which is installed at the end of the drying process through sorting of the soil, and improve the quality of the produced fuel.

Brief Description of the Drawings Fig. 1 is a diagram showing a conceptual processing process of MBT system of municipal waste,
FIG. 2 is a view for explaining the construction of a screw conveyor apparatus for discharging a dried matter having a soil sorting function according to the present invention,
3 is a view showing an embodiment of a dried material conveyance screw of a screw conveyor apparatus for discharging a dried matter having a tossed sorting function according to the present invention,
FIG. 4 is a view for explaining a cylindrical screen of a screw conveyor apparatus for discharging a dried matter having a soil sorting function according to the present invention,
5 is a view for explaining an embodiment of a soil discharge unit of a screw conveyor apparatus for discharging dry matter having a soil sorting function according to the present invention,
6 is a view for explaining driving of a screw conveyor apparatus for discharging dry matter having a tossed sorting function according to the present invention.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It should also be understood that the position or arrangement of individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

FIG. 1 is a diagram showing a conceptual treatment process of municipal waste through the MBT system. As shown in FIG. 1, the most significant feature of the municipal waste treatment method is that the municipal waste is not buried, And to produce solid fuel using flammable waste.

As shown in FIG. 1, the basic process of the MBT system is such that, when municipal wastes containing mixed organic wastes (food wastes, etc.) are brought in, the municipal wastes are finely crushed and then moisture contained in the municipal wastes The dried mash municipal waste is sorted to select and incinerate incombustible materials such as soil or wastewater, and the combustible waste is added as a raw material to a means such as a molding machine for producing a solid raw material.

The solid fuel is produced from a combustible waste having a water content of a certain level or less as a raw material, and it becomes a molded solid fuel (SRF) having a predetermined shape (for example, a pallet shape) through the molding machine or does not pass through a separate molding machine And is produced as unfired unfused solid fuel (Fluff SRF).

The present invention relates to a drying material conveying screw conveyor device for conveying a dried material discharged from a dryer positioned at a rear end of a dryer for performing a drying process using an apparatus used in a drying process in the MBT system, And further has a function of selecting the included soil.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a screw conveyor apparatus for discharging a dried matter having a soil sorting function according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view for explaining the construction of a screw conveyor apparatus for discharging a dried matter having a tossed sorting function according to the present invention. 2, the present invention includes a conveyor body 10, a drying material conveyance screw 20, a cylindrical screen 30, a soil discharge unit 40, and a screw driving unit 50.

As shown in FIG. 2 (c), the conveyor body 10 is formed of a metal material and forms a dry matter input port 112 through which the dried matter discharged from the dryer enters, And an exhaust hole 120 formed in the longitudinal direction so as to provide an internal space having a predetermined depth and discharged down by its own weight.

The conveyor body 10 is preferably of a closed type in order to prevent the outflow of odors generated from the municipal waste (dried product) that has been pulverized and dried. In order to facilitate maintenance, the upper cover 110 are separated from each other.

As shown in FIG. 2 (b), the dry material conveyance screw 20 is installed in the conveyor body 10 and serves to convey the dried material, and corresponds to a conveyance screw used in a conventional screw conveyor apparatus.

3 is a view showing an embodiment of a dry material conveyance screw of a screw conveyor apparatus for discharging a dry matter having a soil sorting function according to the present invention, As described above, it is preferable to further include one to four agitating blades 210 per pitch so as to form a conveying screw of the type and type capable of agitating the dried material while conveying the dried material.

The agitating blade (210) continuously agitates the dried material, thereby facilitating the selection of the soil included in the dried material, thereby improving the sorting efficiency of the soil.

Although the stirring of the dry material conveying screw 20 itself occurs, if the stirring is not sufficiently performed, the possibility that the soil material is mixed with the dried material and transferred as it is is very high. Therefore, By continuously mixing (stirring), it is possible to provide an environment in which the inclusion of the inclusions in the dried material can be smoothly selected.

The cylindrical screen 30 is made of a metal material. As shown in the figure for explaining the cylindrical screen of the screw conveyor apparatus for discharging dry matter having the soil sorting function according to the present invention, A structure in which a plurality of eyes 310 are formed so as to sort out the soil during the transportation of the dried material is formed in a cylindrical shape and the entire outside of the section of the dried material transporting screw 20 is wrapped, And is exposed to the discharge hole 120 of the body 10.

Therefore, the soil included in the dried material being conveyed by the dried material conveyance screw 20 is sorted by the cylindrical screen 30, and discharged through its discharge hole 120 of the conveyor body 10 by its own weight.

As shown in FIG. 4 (c), a plurality of such cylindrical screens 30 can be installed on the dried material conveying screw 20. When a plurality of cylindrical screens 30 are installed in this way, the conveyor body 10, A plurality of discharge holes 120 corresponding to the positions of the respective cylindrical screens 30 are formed.

In addition, it is preferable that the cylindrical screen 30 integrally rotates together with the dried material conveyance screw 20.

This causes the cylindrical screen 30 to rotate simultaneously with the dry material transfer screw 20 to prevent the eyes 310 of the cylindrical screen 30 from being clogged.

That is, the cylindrical screen 30 rotates at the same speed as the dried material conveyance screw 20, thereby preventing the eyes 310 of the cylindrical screen 30 from being clogged.

Therefore, it is preferable that the cylindrical screen 30 is structured so as to be combined and separated in the form of being assembled to the dried material conveyance screw 20. [

The gravel discharge unit 40 is connected to the discharge hole 120 of the conveyor body 10 as shown in FIG. 2, and discharges the gravel discharged through the discharge hole 120 due to its own weight .

That is, the soil discharge unit 40 is connected to the discharge hole 120 of the conveyor body 10 to discharge the selected sludge by the cylindrical screen 30.

As shown in FIG. 5, the soil discharge unit 40 includes a discharge hole (not shown) of the conveyor body 10 And a rotary valve 420 connected to the end of the earth moving part 410 for discharging the earth moving material. desirable.

The soil-moving unit 410 preferably moves the soil to a screw-type soil-moving unit 412 such as the drying-material transfer screw 10, and connects the rotary valve 420 to a distal end of the soil-moving unit 410.

The rotary valve 420 prevents external air from being excessively introduced into the conveyor apparatus according to the present invention, thereby preventing fire due to excessive inflow of outside air.

In addition, the gravel-discharging unit 40 can be implemented in various structures and forms that can move the selected gravel-like objects in addition to the gravel-discharging unit 40 shown in Fig.

As shown in FIG. 2, the screw driver 50 is connected to the rotation shaft of the dry material conveyance screw 20 to drive the dry material conveyance screw 20.

The screw driving part 50 is connected to the drying material conveying screw 20 in various shapes and structures to rotate the drying material conveying screw 20.

The screw conveyor apparatus according to the present invention as described above is a screw conveyor apparatus for conveying a dry matter to the conveyor body 10, When the drying material is introduced through the inlet 112, the drying material is conveyed by the drying material conveying screw 20 installed in the conveyor body 10, and the soil is selectively discharged in the section where the cylindrical screen 30 is installed. 10 are moved by the soil discharge unit 40 and finally discharged.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And such variations and modifications are intended to fall within the scope of the appended claims.

10: Conveyor body
20: Dry material transport screw
30: Cylindrical screen
40:
50: screw driver
110: upper cover
112:
120: Exhaust hole
210: stirring blade
310: Eye
410: earth moving unit
412: Sediment transportation means
420: Rotary valve

Claims (6)

There is provided a screw conveyor device for dry matter discharge for transferring dry matter discharged from a drier which is added to a system for treating municipal wastes to be energy and drying municipal wastes,
A conveyor body provided with a passage through which the dried material is conveyed and formed with a discharge hole through which discharged soil is discharged by its own weight;
A drying material transfer screw installed in the conveyor body for transferring the dried material;
A cylindrical screen positioned at a discharge hole portion of the conveyor body in a cylindrical shape having a plurality of openings for sorting the soil during the process of being transported by the dry material transporting screw;
A soil discharge unit connected to the discharge hole of the conveyor body to transfer the soil discharged from the discharge hole; And
And a screw driving unit connected to the rotary shaft of the dry material conveyance screw to drive the dry material conveyance screw. The method of claim 1, wherein the conveyor body
Wherein the upper cover is separated from the upper cover, and the upper cover is separated from the upper cover. The method of claim 1, wherein the dry matter transferring screw
And further comprising one to four agitating blades per pitch, so that the dried material is stirred while being conveyed. The screw conveyor device for extracting a dried matter having a soil sorting function. 2. The apparatus of claim 1, wherein the cylindrical screen
Wherein the dried material conveying screw is rotated together with the dried material conveying screw. 2. The apparatus according to claim 1, wherein the gravel-
A gravel-moving unit for moving the selected gravel combined with the discharge hole of the conveyor body;
And a rotary valve coupled to an end of the gravel-moving unit for discharging the gravel-like material. 6. The method of claim 5, wherein the soil-
Wherein the screw conveyor is a screw conveyor.
KR1020150146853A 2015-10-21 2015-10-21 Discharge screw conveyor device having a earth and sand sorting function KR20170046865A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150146853A KR20170046865A (en) 2015-10-21 2015-10-21 Discharge screw conveyor device having a earth and sand sorting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150146853A KR20170046865A (en) 2015-10-21 2015-10-21 Discharge screw conveyor device having a earth and sand sorting function

Publications (1)

Publication Number Publication Date
KR20170046865A true KR20170046865A (en) 2017-05-04

Family

ID=58743257

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150146853A KR20170046865A (en) 2015-10-21 2015-10-21 Discharge screw conveyor device having a earth and sand sorting function

Country Status (1)

Country Link
KR (1) KR20170046865A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109691496A (en) * 2019-02-28 2019-04-30 林孔焰 Shellfish flotation device
CN117775593A (en) * 2024-02-05 2024-03-29 湖南口味王集团有限责任公司 Food conveying device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109691496A (en) * 2019-02-28 2019-04-30 林孔焰 Shellfish flotation device
CN117775593A (en) * 2024-02-05 2024-03-29 湖南口味王集团有限责任公司 Food conveying device

Similar Documents

Publication Publication Date Title
CA2170247C (en) Process and apparatus for treating heterogeneous waste to provide a homogeneous fuel
US9776224B2 (en) Method of utilizing refuses in urban and rural
KR101814123B1 (en) Method and apparatus for muiti recycling of waste
KR101744153B1 (en) Solid waste processing apparatus
CN101829672A (en) Treating method and device for urban domestic rubbish
KR100267141B1 (en) Dry processing of food waste and its apparatus
KR20080081875A (en) Sorting apparatus and method for recycling of inflammable wastes
KR100676729B1 (en) A device for recycling a waste
KR101272123B1 (en) Organic waste recycling system
CN1394701A (en) Urban garbage centralized treatment and regeneration method
KR101214101B1 (en) System for manufacurting solid fuel from livestock excretion and food waste
CN108072033A (en) A kind of device for increasing incineration firing efficiency
KR20170046865A (en) Discharge screw conveyor device having a earth and sand sorting function
KR100289070B1 (en) Vehicle for drying organic waste
KR100729956B1 (en) Apparatus for disposing food waste in a bundle
KR100739427B1 (en) Sludge and food trash's drying system
KR0144585B1 (en) Auto disposal equipment for food garbage
CN213421123U (en) Efficiency of handle is improved sludge incineration device
KR100291313B1 (en) Sludge dryness system
KR100196970B1 (en) Apparatus and method for pretreating food waste
KR200331279Y1 (en) A horizontal type multi-stage rotary disc separator
KR100407226B1 (en) A dry reactor for fuelizing of inflammable waste
KR100827625B1 (en) A Pre-Processing Apparatus for Wastewater Treatment
KR200191410Y1 (en) Reclaiming trash sorting apparatus
CN109078958A (en) A kind of Internet of Things recyclable fuel processing unit (plant) and its production procedure

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E601 Decision to refuse application