KR102297979B1 - Multi-type solid fuel transfer system for renewable power generation - Google Patents

Abstract

The present invention relates to a transfer system capable of mixing and supplying various types of renewable solid fuels such as wood pellets, wood chips, and sawdust to a boiler for renewable power generation. The disclosed multiple solid fuel transfer system for the renewable power generation comprises: a dumping device which lifts a container and stacks a solid fuel loaded in the container; a storage transfer unit which transfers the solid fuel stocked by the dumping device to a silo; a silo in which the solid fuel transferred by the storage transfer unit is stored; and a supply transfer unit which transfers the solid fuel stored in the silo to the boiler.

Description

Multi-type solid fuel transfer system for renewable power generation

The present invention relates to a multi-type solid fuel transport system for new and renewable power generation, and more particularly, to a boiler for renewable power generation by mixing and supplying various types of renewable solid fuels, such as wood pellets, wood chips, sawdust, and waste solid fuel, to a boiler for renewable power generation. It relates to the transport system.

As a technology for transporting solid fuel, Korean Patent Publication No. 10-1214822 (registered on Dec. 17, 2012) "Transfer device for co-firing of biomass" is proposed.

The prior art includes "unloading means for receiving biomass and transferring it to a post-processing process through a transfer conveyor and a bucket elevator according to a signal from the control unit; accommodating the biomass falling by the bucket elevator to precisely measure and quantify the weight Storage means for discharging via a supply feeder; Input means for measuring the supply amount of biomass quantitatively discharged by the quantitative supply feeder through a belt scale and transferring the set amount to the post-treatment process; A dust collecting means for sucking scattering products generated in the operation process and collecting the dust through a bag filter, and pneumatic means for cooling and drying as well as removing dust by pressurizing air to various pipes of the components including the unloading means It is a technology capable of improving the efficiency and reliability of biomass fuel conversion by standardizing the work process according to the co-firing of biomass fuel and maintaining a constant biomass content ratio.

[Document 1] Republic of Korea Patent Publication No. 10-1214822 (Registered on December 17, 2012)

It is an object of the present invention to provide a multi-type solid fuel transport system for renewable power generation that enables mixing and supply of various types of renewable solid fuels such as wood pellets, wood chips, sawdust, and waste solid fuels to a boiler for renewable power generation.

In addition, the present invention is provided with a dumping device that can be utilized for both the storage of solid fuel loaded in the container and the storage of solid fuel loaded in the dump truck, so that the storage space can be efficiently operated and the storage operation can be carried out efficiently. An object of the present invention is to provide a multi-type solid fuel transport system for renewable power generation.

Another object of the present invention is to provide a multi-type solid fuel transfer system for new and renewable power generation that prevents fire and explosion in a silo for storing solid fuel and reduces damage thereof in case of an explosion.

The problems to be solved by the present invention are not limited to the aforementioned problems. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention pertains from the following description.

In order to solve the above problems, a multi-type solid fuel transport system for new and renewable power generation according to an embodiment of the present invention includes: a dumping device for lifting a container and accumulating the solid fuel loaded in the container; a storage transfer unit for transferring the solid fuel stocked by the dumping device to the silo; a silo in which the solid fuel transferred by the storage transfer unit is stored; and a supply transfer unit for transferring the solid fuel stored in the silo to the boiler.

In an embodiment of the present invention, the storage transfer unit, a lower conveyor consisting of a pair of lower pulleys and a lower belt wound around the pair of lower pulleys, and a pair of upper pulleys and an upper portion wound around the pair of upper pulleys It consists of a belt and includes a sandwich conveyor including an upper conveyor installed to be superimposed on the upper side of the lower conveyor, and wood pellets, wood chips, sawdust, waste solid fuel, etc. are formed between the lower conveyor and the upper conveyor. It is configured to transport fuel.

In an embodiment of the present invention, the dumping device includes: a bottom plate supporting a container or a dump truck; a rotation support part for rotatably supporting the rear end of the bottom plate; two side frames installed to be spaced apart from each other left and right on the upper side of the bottom plate; a rotation driving unit connected to the bottom plate or the side frame to rotate the bottom plate; two rear frames installed to be spaced apart from each other left and right on the upper rear portion of the bottom plate so as to be disposed behind the two side frames; a horizontal frame installed between the two rear frames to be movable along the two rear frames; and a lift driving unit connected to the horizontal frame to lift and lower the horizontal frame.

In an embodiment of the present invention, a spraying device for spraying water inside the silo may be installed in the silo.

In an embodiment of the present invention, an inert gas injection device for injecting an inert gas into the silo may be installed in the silo.

The multi-type solid fuel transfer system for renewable power generation according to an embodiment of the present invention employs a sandwich conveyor for transferring the solid fuel, thereby converting various types of renewable solid fuels such as wood pellets, wood chips, and sawdust into a boiler for renewable power generation. It has the effect of mixing and supplying with

In addition, the multi-type solid fuel transport system for renewable power generation according to an embodiment of the present invention efficiently operates the storage space by being able to stock both the solid fuel loaded in the container and the solid fuel loaded in the dump truck in the dumping device. It can be done and has the effect of efficiently proceeding with the field work.

In addition, the multi-type solid fuel transfer system for renewable power generation according to an embodiment of the present invention has the effect of preventing fire and explosion in the silo by the spraying device and the inert gas injection device installed in the silo.

1 is a schematic view of a multi-type solid fuel transport system for renewable power generation according to an embodiment of the present invention.
Figure 2 is a front view of the dumping device in the embodiment of the present invention.
Figure 3 is a front view showing a state in which the bottom plate is rotated in Figure 2;
4 is a side view of a dumping device in an embodiment of the present invention;
Figure 5 is a front view showing a state in which the dump truck entered the dumping apparatus of the present invention.
6 is a schematic diagram of a sandwich conveyor in an embodiment of the present invention;
7 is a front view and a plan view of a hopper conveyor in an embodiment of the present invention.
8 is a schematic diagram of a silo in an embodiment of the present invention;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, components shown in the drawings may be exaggerated, omitted, or schematically represented.

1 is a schematic view of a multi-type solid fuel transport system for renewable power generation according to an embodiment of the present invention, FIG. 2 is a front view of a dumping device in an embodiment of the present invention, and FIG. 3 is a state in which the bottom plate is rotated in FIG. 4 is a side view of the dumping apparatus in the embodiment of the present invention, FIG. 5 is a front view showing a state in which a dump truck enters the dumping apparatus of the present invention, and FIG. 6 is in the embodiment of the present invention It is a schematic diagram of a sandwich conveyor, Fig. 7 is a front view and a top view of a hopper conveyor in an embodiment of the present invention, and Fig. 8 is a schematic view of a silo in an embodiment of the present invention.

1 to 8, the multi-type solid fuel transport system for new and renewable power generation according to an embodiment of the present invention is a biomass fuel such as wood pellets, wood chips, sawdust, and waste It is designed to mix and supply various types of regenerated solid fuels such as waste solid fuels made by processing combustible wastes such as tires and waste plastics to a boiler for renewable power generation. It is made including a silo (silo, 300), a supply transfer unit 400 and a dust collector (900).

The dumping device 100 is for pouring out the solid fuel loaded in the container 10 and loading it, and as shown in FIGS. 2 to 5 , the bottom plate 110 supporting the container 10 or the dump truck 20 . ); a rotation support part (not shown) for rotatably supporting the rear end of the bottom plate 110; Two side frames 120 installed to be spaced apart from each other left and right on the upper side of the bottom plate 110; a rotation driving unit 130 connected to the bottom plate 110 or the side frame 120 to rotate the bottom plate 110; Two rear frames 140 installed to be spaced apart from each other left and right on the upper rear portion of the bottom plate 110 so as to be disposed behind the two side frames 120 ; a horizontal frame 150 installed between the two rear frames 140 to be movable along the two rear frames 140; and a lift driving unit 160 connected to the horizontal frame 150 to lift and lower the horizontal frame 150 .

The bottom plate 110 includes a plurality of sections coupled to form a rectangular frame shape and a top plate installed on the upper surface of each section to support the container 10 or the dump truck 20 .

The rotation support part rotatably supports the rear end of the bottom plate 110 so that the bottom plate 110 can be rotated and disposed to be inclined. Referring to FIG. 1 , the rear end of the bottom plate 110 is rotatably supported by a hopper conveyor 220 to be described later. That is, the rotation support part may be the hopper conveyor 220 as in the embodiment of the present invention, and if necessary, may be provided in a structure such as a pillar installed on the ground.

The two side frames 120 are installed to be spaced apart from each other with a space therebetween for the container 10 or the dump truck 20 to enter. The two side frames 120 are installed so as to form an approximately trapezoid on the upper side of the bottom plate 110 so as to support both sides of the container 10 when the bottom plate 110 rotates.

The rotation driving unit 130 may be composed of various devices capable of tilting the bottom plate 110 , such as a cylinder device, a device in which a motor and a screw are combined, and a device in which a motor and a gear are combined. According to the embodiment of the present invention, the rotation driving unit 130 is made of a hydraulic cylinder in which the tube side is rotatably fixed to the ground and the rod side is rotatably fixed to the side frame 120 . That is, the hydraulic cylinder is operated to lift the side frame 120 and the bottom plate 110 to tilt the bottom plate 110 .

The two rear frames 140 are installed to be spaced apart from each other so as to form an interval wider than the width of the container 10 . The two rear frames 140 support the horizontal frame 150 to be movable in a lifting operation.

The horizontal frame 150 supports the rear surface of the container 10 in a state in which the bottom plate 110 is rotated obliquely. The horizontal frame 150 is configured to be installed so as to be capable of lifting and lowering, and to be disposed under the door of the container 10 by changing its vertical position. That is, the horizontal frame 150 is installed so that the lifting operation is possible, so that the rear surfaces of the containers 10 of different sizes can be supported at positions that do not interfere with the opening of the door. As shown in FIG. 2 , a bumper 151 may be installed on the front surface of the horizontal frame 150 to relieve an impact upon contact with the container 10 and to prevent damage to the container 10 .

The elevating driving unit 160 may be composed of various devices capable of elevating the horizontal frame 150 , such as a cylinder device, a motor and a screw combination device, and the like. According to the embodiment of the present invention, the lifting driving unit 160 is composed of a hydraulic cylinder in which the tube side is fixed to the upper end of the rear frame 140 and the rod side is fixed to the horizontal frame 150 , It is configured to be able to adjust the height of the horizontal frame 150 by operation.

The dumping device 100 having the above configuration can not only lift the container 10 as shown in FIGS. 1 and 3 and load the solid fuel loaded in the container 10, but also FIGS. 1 and 5 . As shown in Fig. , when the solid fuel loaded in the dump truck 20 is to be stored, a space is provided for the dump truck 20 to enter close to the storage location (hopper conveyor 220). As a result, the dumping device 100 can be used for both the storage of the solid fuel loaded in the container 10 and the storage of the solid fuel loaded in the dump truck 20, so that the storage space can be efficiently operated. and enable efficient yard work.

The storage and transfer unit 200 is for transferring the solid fuel stored by the dumping device 100 to the silo 300, and as shown in FIG. 1, a hopper conveyor 220, a sandwich type conveyor 210 ), a distributor 230 , a belt scale 240 and a bypass conveyor 250 .

As shown in FIG. 7 , the hopper conveyor 220 includes a hopper 221 installed adjacent to the dumping device 100 and a belt conveyor 222 installed below the hopper 221 . In the hopper 221 , the solid fuel poured from the container 10 or the dump truck 20 entering the dumping device 100 is stored, and the belt conveyor 222 is the solid fuel stored in the hopper 221 . is transferred to the sandwich conveyor 210 .

The hopper 221 has an open upper surface adjacent to the dumping device 100, and a dust suction hood 223 is installed on the upper surface rear portion. According to this, when the solid fuel is input into the hopper 221 through the entire open upper surface of the hopper 221, the dust suction hood 223 sucks the dust generated when the solid fuel is put into the hopper 221 ) to prevent dust from scattering.

As shown in FIG. 6, the sandwich type conveyor 210 is a lower conveyor 211 comprising a pair of lower pulleys 211a and a lower belt 211b wound around the pair of lower pulleys 211a, and It consists of a pair of upper pulleys 212a and an upper belt 212b wound around the pair of upper pulleys 212a and includes an upper conveyor 212 installed to be superimposed on the upper side of the lower conveyor 211 .

Here, the lower conveyor 211 and the upper conveyor 212 extend upward from the rear end of the input section S1 for transferring the solid fuel supplied from the hopper conveyor 220 to the rear, and the input section S1. It has a rising section S2 for transferring fuel upward, and a discharge section S3 extending backward from the rear end of the rising section S2 to discharge solid fuel. At this time, the input section S1 and the discharge section S3 of the lower conveyor 211 are formed to be longer than the input section S1 and the discharge section S3 of the upper conveyor 212 .

According to the sandwich conveyor 210 as described above, while the solid fuel supplied from the hopper conveyor 220 to the tip of the lower conveyor 211 is transferred to the rear of the input section S1, the lower conveyor 211 and the upper conveyor 212, and at this time, the upper belt 212b conveys the solid fuel while pressurizing and fixing it. can be transferred smoothly.

The hopper conveyor 220 and the sandwich conveyor 210 are configured to be capable of speed control by an inverter, so that the transport speed can be adjusted according to the type of solid fuel.

1, the hopper conveyor 220 or the sandwich type conveyor 210 may be provided with a magnetic separator 800 for filtering out foreign substances of iron components from the solid fuel.

The distributor 230 has an inlet through which the solid fuel discharged from the sandwich conveyor 210 is introduced, and two outlets connected to the inlet and selectively opened and closed.

The belt scale 240 measures the solid fuel discharged from one outlet of the distributor 230 and puts it into the silo 300 .

The bypass conveyor 250 transfers the solid fuel discharged from the other outlet of the distributor 230 to the supply transfer unit 400 .

The silo 300 is for storing the solid fuel transferred by the storage transfer unit 200 .

8, the silo 300 is a device for preventing fire and explosion, and a spray device 500, an inert gas injection device 600 and an explosion-proof panel 700 are installed, and in addition to the silo ( 300) A temperature sensor, an oxygen concentration measuring sensor, a level sensor, etc. for measuring internal temperature, oxygen concentration, solid fuel storage, etc. may be installed.

The spray device 500 is installed to spray water inside the silo 300 , thereby preventing fire and explosion of the silo 300 .

The inert gas injection device 600 is installed to inject an inert gas such as nitrogen into the silo 300 to prevent fire and explosion of the silo 300 . The inert gas injection device 600 may be operated to maintain an oxygen concentration of 15% or less in the silo 300 in connection with the oxygen concentration measuring sensor.

The explosion-proof panel 700 is made of an aluminum panel and installed at the top of the silo 300 . The explosion-proof panel 700 is destroyed when the silo 300 explodes so that the explosion pressure can be ejected to the outside, thereby minimizing damage caused by the explosion of the silo 300 .

As shown in FIG. 1, the supply transfer unit 400 transfers the solid fuel stored in the silo 300 to the boiler 30, and includes a quantitative supply feeder 410, a second sandwich type conveyor 420, It comprises a second distributor 430 and a second belt scale 440 .

The quantitative supply feeder 410 is installed at the lower end of the silo 300 to withdraw the solid fuel stored in the silo 300 in a quantity as needed. The quantitative supply feeder 410 may be configured to include a screw conveyor equipped with speed control by an inverter.

The second sandwich type conveyor 420 transfers the solid fuel drawn from the silo 300 upward by the fixed quantity feeder 410 . Since the second sandwich type conveyor 420 has the same configuration as the sandwich type conveyor 210 of the storage transfer unit 200, a repeated description will be omitted.

As shown in FIG. 1, the second distributor 430 and the second belt scale 440 are provided in plurality to distribute the solid fuel discharged from the second sandwich conveyor 420 in multiple stages to provide a plurality of boilers ( 30) is installed so that each can be supplied.

The dust collector 900 collects and filters the dust generated and scattered during the transfer of the solid fuel. The dust collector 900 is preferably configured as a bag filter dust collector to filter dust through a bag filter, but is not limited thereto, and various types of dust collectors such as a cyclone dust collector and an electric dust collector may be applied. have. In addition, if necessary, two or more types of dust collectors are provided to first collect dust with large particles, and second collect dust with small particles to remove the dust, and the primary collected dust can be recycled as solid fuel. can be

The multi-type solid fuel transport system for new and renewable power generation of the present invention configured as described above employs a sandwich conveyor for transporting solid fuels, so that various kinds of recycled solid fuels such as wood pellets, wood chips, sawdust, and waste solid fuels are newly produced. It can be mixed and supplied to a boiler for regenerative power generation.

In the foregoing, the present invention has been described with reference to limited embodiments and drawings, but it will be apparent to those skilled in the art that various modifications are possible within the scope of the technical idea of the present invention. Accordingly, the protection scope of the present invention should be defined by the description of the claims and their equivalents.

100: dumping device 110: bottom plate
120: side frame 130: rotation driving part
140: rear frame 150: horizontal frame
160: lift drive unit 200: storage transfer unit
210: sandwich type conveyor 211: lower conveyor
211a: lower pulley 211b: lower belt
212: upper conveyor 212a: upper pulley
212b: upper belt 220: hopper conveyor
221: hopper 222: belt conveyor
223: dust suction hood 230: distributor
240: belt scale 250: bypass conveyor
300: silo 400: supply transfer unit
410: fixed quantity feeder 420: second sandwich type conveyor
430: second distributor 440: second belt scale
500: atomizing device 600: inert gas injection device
700: explosion-proof panel 800: magnetic separator
900: dust collector

Claims (5)

a dumping device 100 that lifts the container 10 and stocks the solid fuel loaded in the container 10;
a storage transfer unit 200 for transferring the solid fuel stocked by the dumping device 100 to the silo 300;
a silo 300 in which the solid fuel transferred by the storage transfer unit 200 is stored; and
A supply transfer unit 400 for transferring the solid fuel stored in the silo 300 to the boiler 30; includes,
The dumping device 100,
a bottom plate 110 supporting the container 10 or the dump truck 20;
a rotation support part for rotatably supporting the rear end of the bottom plate 110;
Two side frames 120 installed to be spaced apart from each other left and right on the upper side of the bottom plate 110;
a rotation driving unit 130 connected to the bottom plate 110 or the side frame 120 to rotate the bottom plate 110;
Two rear frames 140 installed to be spaced apart from each other left and right on the upper rear portion of the bottom plate 110 so as to be disposed behind the two side frames 120 ;
a horizontal frame 150 installed between the two rear frames 140 to be movable along the two rear frames 140; and
It is connected to the horizontal frame 150, the horizontal frame 150 for lifting and lowering driving unit 160;
A multi-type solid fuel transport system for new and renewable power generation, characterized in that a bumper 151 is installed on the front side of the horizontal frame 150 to alleviate the impact upon contact with the container 10 and prevent damage to the container 10.
According to claim 1,
The storage and transport unit 200,
A lower conveyor 211 composed of a pair of lower pulleys 211a and a lower belt 211b wound around the pair of lower pulleys 211a, and a pair of upper pulleys 212a and the pair of upper pulleys ( It consists of an upper belt 212b wound around 212a) and includes a sandwich conveyor 210 including an upper conveyor 212 installed to be superimposed on the upper side of the lower conveyor 211, and the lower conveyor 211 and A multi-type solid fuel transfer system for renewable power generation, characterized in that it is configured to transfer a variety of renewable solid fuels such as wood pellets, wood chips, sawdust, and waste solid fuel between the upper conveyors (212).
3. The method of claim 1 or 2,
The multi-type solid fuel transfer system for renewable power generation, characterized in that it further comprises a spraying device (500) installed in the silo (300) to spray water inside the silo (300).
3. The method of claim 1 or 2,
The multi-type solid fuel transfer system for renewable power generation, characterized in that it further comprises an inert gas injection device (600) installed in the silo (300) and injecting an inert gas into the silo (300).
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