KR100507459B1 - The cleaning apparatus of fluidized bed - Google Patents

Abstract

The present invention relates to a multistage dry distillation furnace, and a cleaning device for a fluidized bed used in a heat exchanger, an incinerator, and the like.

The cleaning device for a fluidized bed of the present invention includes a fluid inlet for injecting fluid, an inlet-side weir for controlling the amount of fluid, a fixing part welded and assembled to the device to maintain rigidity, and vertically or horizontally. Through a moving section that continuously removes contaminants that clog the flow path, a drive that is connected to the power linkage and actuates the moving section, a down-comer that guides the fluid down, and It is composed of a fluid outlet for discharging the fluid is finished contacting the gas coming from the bottom.

According to the present invention, by continuously cleaning the flow path to prevent clogging by using external power during operation of the device, it is possible to perform dry dry completely, and to efficiently recover heat while continuously removing pollutants.

Description

       Cleaning device for fluid bed {THE CLEANING APPARATUS OF FLUIDIZED BED}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-tubular distillation furnace, a cleaning device for a fluidized bed used in heat exchangers, incinerators, and the like.

Generally, when the fuel or waste is dried or incinerated, a considerable amount of dust, pollutants, oils, tars, etc. are generated. These components are clogged with tar by using a conventional heat exchanger, and the operation time is very short. In particular, it is desirable to pass a small hole in order to compose the fluidized bed in multiple stages or to increase the gas-liquid contact performance for dust collection or oil recovery.

Conventional devices use high temperature filters or the like to purify dry gas, or directly heat exchange in pyrolysis incinerators. However, this method cannot solve the clogging of the pipe due to condensation of tar in the distillation gas, so in the distillation unit, high temperature heat is applied again above 1200 ° C to crack these oils to make a complete gas component, or Direct washing with water discards heat, cools only flammable gas, recovers oil components, and makes clean gas.

As an alternative, Korean Patent Application No. 10-1999- filed by the applicant of the present invention

In 0036775 (a comprehensive treatment system for high moisture waste and fuel combined with a dry evaporation system using a reverse multi-efficiency pipe and a gas purification device using oil), oil was used as a fluid medium, but the hole in the fluidized bed itself was clogged. Could not be solved.

In addition, in the case of a multi-tube water pipe heat exchanger, many heat pipes can be arranged. However, because of the clogging phenomenon caused by the soot, a soot blower is installed and solved. There was no choice but to.

In addition, in the case of a multi-pipe incinerator, the drying and dry distillation beds are fixed, so that the efficiency is lowered by increasing the number of holes and reducing the number to prevent the blockage of the holes.

The present invention is to solve the above problems, to enable the heat and mass transfer while continuously cleaning using an external power during operation to operate the multi-stage fluidized bed drying furnace without long-term cleaning.

In addition, in a system for cleaning contaminated gas and recovering heat, heat exchange and mass transfer are continuously possible, and a narrow flow path is formed to maximize transfer efficiency.

The present invention relates to a multistage dry distillation furnace, and a cleaning device for a fluidized bed used in a heat exchanger, an incinerator, and the like.

The cleaning device for a fluidized bed of the present invention includes a fluid inlet 21 for introducing a fluid, a weir 13 for controlling an amount of fluid, and a high welded and assembled rigidity to the device. A government unit 11, a movable unit 12 continuously moving up and down or left and right to block the flow path, a driving unit 30 connected to the power connecting device 40 and operating the movable unit, and a fluid Down-comer (14) to guide the down, and the fluid outlet 22 to discharge the fluid that has finished contact with the gas rising from the bottom through several stages.

According to the present invention, the contaminants attached as the movable portion 12 moves up and down or left and right can be removed by the gas and the fluidized medium so that the apparatus can be continuously operated without long-term cleaning.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1 is a cross-sectional flow diagram showing the cleaning device of the fluidized bed of the present invention illustrating the basic concept and structure.

The solid or liquid introduced through the fluid inlet 21 flows through the inlet side weir 13 through the fixed part 11 and the movable part 12 in the process of flowing up from the bottom, Down-comer (14) down to the bottom through the flow contact with the number of stages and is finally discharged through the fluid outlet (22).

In this process, when the gas coming from the bottom is dirty, the hole forming the fluidized bed is gradually blocked. In order to remove this, the driving unit 12 is cleaned by the drive device 30 by moving up and down gradually.

Figure 2 is a perspective view showing the cleaning device of the fluidized bed of the present invention.

The gas temperature is applied to the case where water cooling is not required at 600 ° C or less, all made of heat resistant steel sheets such as stainless steel, and the fixing part 11 and the driving part 12 are made of a plate.

Sludge, BC oil, light oil, etc., introduced into the fluid inlet 21 during operation, flows over the fixing part 11 and the driving part 12 formed in the form of a plate, and the fluid introduced by the gas rising between the gaps flows. In the process of going down to the lower part through the down-comer 14 and contacting the gas again, and being discharged to the fluid outlet 22, the gap is gradually blocked by the contaminants. 12 is gradually moved up and down by the drive device 30 of FIG.

The fixing part 11 is welded and assembled to each other through the side plate and the center plate, and is fixed to the wall 7 to maintain rigidity. The fixing part 11 and the driving part 12 form a long slit groove in a right angle shape. The gas rises through the gap.

At this time, the gap ratio is adjusted according to the width of the fixing portion 11 and the placement interval and the thickness of the driving unit 12. For the smooth flow without leaking water, the lower the gap ratio is 5-10% or less, the better the fixing portion. It is preferable to keep the interval between 11 and the drive part 12 at about 2-5 mm.

Figure 3 is a perspective view showing a driving device of the cleaning device of the fluidized bed of the present invention.

The driving device is moved based on the movement of the four joint link consisting of a drive link 33, a drive link rod 36, a triangular drive link 35, a fixed link 34 connected to the drive shaft 31.

The driving unit 12 is connected to the movable part connecting rod 37 is inserted into the upper hole and the movable part connecting rod 37 is inserted into the triangular driving link 35 fixed by the fixing link 34 to connect with the driving link rod 36. It is connected to the drive shaft 31 which is the main axis of the movement through the drive link (33).

The drive shaft 31 is fixed to the device by the drive shaft fixing link 32 and is rotated by the power through the main drive rod 44, which is a drive link 33, drive link rod 36 connected to the drive shaft 31 , Triangular drive link 35 to the left and right movement.

By arranging and operating the link configured as described above and then the drive unit 12 is inserted into the movable connecting rod 37 is to move up and down.

At this time, the drive shaft 31 moves a predetermined angle by the connected main drive rod 44, the flexible rod 42 for connecting the drive shaft and the connecting rod 43 is connected to the connection portion of the casing flexible connection pipe 41 It becomes blocked.

This allows the end of the drive shaft external connection flexible 42 to be operated while blocking the fluid inside from contacting the outside air.

Figure 4 is an example of applying the cleaning device of the fluidized bed of the present invention to a multi-stage drying furnace.

At the bottom of the distillation furnace, charcoal is incinerated heat, and when it is dried in multiple stages, it is contacted at low temperature in the first stage, so the oilification rate is high, and the final temperature of fuel is the highest in the final stage. It is good to install the auxiliary equipment such as melting and so on.

Figure 4 illustrates a device configured for this to form a skeleton with a water cooling tube to enable high-temperature operation, consisting of two distillation stage and one combustion stage.

Solids to be incinerated through the fluid inlet 21 are introduced and fluidization is started by the gas coming from the bottom through the narrow gas flow path between the cross-sectional forming plates 53 welded to the upper surface of the tube tube group, which is down-comer. (14) is induced to flow down.

At this time, the stationary pipe group (51a, 51b) and the movable pipe group (52a, 52b) is composed of a bent form of the U-shaped pipe in a zigzag form, the fixed water pipe a (51a), movable water pipe a (52a), fixed water pipe b ( 51b), the cross section forming plate 53 is welded to the upper surface of the tube tube group arranged in order as shown in the movable water pipe b 52b., And a narrow gas flow path is formed. The fixed tube groups 51a and 51b are assembled with side plates and the movable tube group ( 52a, 52b) is installed to move up and down by installing the drive device of FIG.

The water in the tube is supplied through the fixed part supply header tube 61 and the movable part supply header tube 63 and discharged through the fixed part discharge header tube 62 and the movable part discharge header tube 64 in the space inside the water cooling tube. When combustion and dry flow are increased and the number of stages is increased, the final discharge gas temperature is lowered because the first introduced fuel and the hot combustion gas are gradually brought into low temperature contact.

This is the best for incineration of dry wastes and sludge, such as well-crushed waste, and can further address the remelting device or oil dust collector at the top and bottom.

5 is an example in which the cleaning device of the fluidized bed of the present invention is applied to a multi-pipe heat exchanger, and FIG. 6 is a cross-sectional view thereof.

It consists of one fixed water pipe unit 71 and two movable water pipe units (72a, 72b), the pipe group is usually processed in a zigzag shape is fixed with a small diameter connecting pipe (73) to fix the gap at both ends.

The movable water pipe unit a 72a and the movable water pipe unit b 72b are driven in opposite directions to each other so that the movable water pipe unit b 72b is raised when the movable water pipe unit a 72a descends. When 72a) goes up, the movable water pipe unit b 72b will go down.

When the movable water pipe unit a (72a) comes to the bottom end, the movable water pipe unit b (72b) rises to the top end, so that the flow of gas passes through the lower portion of the movable water pipe unit a (72a) and moves to the movable water pipe unit b (72b). The heat exchange performance is promoted by flowing to the upper end of the), and in this process, the passage area is the same, and the passage of the path is continuously changed, so that mechanical cleaning and fluid cleaning are always performed, thereby enabling a clean heat exchange.

Therefore, the drive system of the multi-tubular heat exchanger must be driven oppositely to the first two pairs of drives by two connecting links.

The method may be operated by installing one more link in which the driving link 33 connected to the driving shaft 31 of FIG. 3 moves in the opposite direction.

7 is an example of applying the cleaning device of the fluidized bed of the present invention to a multi-stage incinerator.

In this case, the system is of a type similar to a vibratory stoker rather than a fluidized bed. The basic idea, however, is to move the drive up and down laterally, to eliminate the fixed end and to move relative to the odd and even side groups by one group to shorten the operating distance and increase the relative distance.

Odd-side tube group 81 and even-side tube group 82 are both moved, and the two tube groups are moved opposite to each other by drive cam 86 composed of a cam type so that even-side tube group 82 moves to the rightmost side. 81) goes to the far left.

As a result, since the gas passage hole is not blocked by impurities or dust of the gas layer, the hole size can be reduced, and the dust on the bed smoothly descends due to the vibration effect.

When the waste is introduced into the upper portion by the pusher 83, the waste is dried and dried in the upper portion of the bed by the gas heat burned by the lower combustion stage 84.

The char and other combustibles remaining after drying and drying in the upper bed are burned by the combustion air supplied to the air supply port 87 installed at the lower end of the lower combustion stage 84, and the burned gas and heat As it penetrates the bed, it supplies the heat necessary for dryness and drying.

The water supply to the pipe group is connected to the upper part to supply the lower header from both sides, the upper header is directly connected to the steam drum, and the lower part is connected to the precipitation pipe side to be connected directly to the high temperature, or pump through a separate cooling device. Can be circulated.

According to the present invention, the combustion can be performed in multiple stages to maximize the distillation effect, and can be used from high temperature gas and polluted gas, and useful substances such as heat and oil and impurities such as dust, sulfur (S), and chlorine (Cl ₂ ). Can be separated and removed for recovery.

In addition, since it can be cleaned continuously with little power, it is very useful for oil recovery from dry gas and cleaning contaminated gas having a very high dust content.

In addition, if the present invention is applied to the dry distillation apparatus, three purposes of energy recovery, dust removal, and oil recovery can be simultaneously achieved.

In addition, it is possible to maintain a narrow gas passage while water-cooled in a fluidized bed distillation type combustion furnace, thereby producing an efficient device.

1 is a cross-sectional flow diagram showing the cleaning device of the fluidized bed of the present invention

Figure 2 is a perspective view showing the cleaning device of the fluidized bed of the present invention

Figure 3 is a perspective view showing the driving device of the cleaning device of the fluidized bed of the present invention

Figure 4 is an example of applying the cleaning device of the fluidized bed of the present invention to a multi-stage drying furnace

5 is an example of applying the cleaning device of the fluidized bed of the present invention to a shell and tube heat exchanger

6 is a cross-sectional view of a multi-pipe heat exchanger to which the cleaning device of the fluidized bed of the present invention is applied.

7 is an example of applying the cleaning device of the fluidized bed of the present invention to a multi-stage incinerator.

＊ Explanation of symbols on main parts of drawing

11: fixing part 12: driving part

13: Weir of the inlet side 14: Down-comer

15: vertical connecting plate 20: wall

21: fluid inlet 22: fluid outlet

30: drive device 31: drive shaft

32: drive shaft fixed link 33: drive link

34: fixed link 35: triangular drive link

36: drive link rod 37: movable connecting rod

40: power connection device 41: casing flexible connection pipe

42: Flexible for external connection of drive shaft 43: Connecting rod

44: main drive rod 51a: fixed water pipe a

51b: fixed water pipe b 52a: movable water pipe a

52b: movable water pipe b 53: cross section forming plate

54: vertical connecting rod 55: movable water pipe complete layer

61: fixed part supply header pipe 62: fixed part discharge header pipe

63: moving part supply header pipe 64: moving part discharge header pipe

71: fixed water pipe unit 72a: movable water pipe unit a

72b: movable water pipe unit b 73: small diameter connector

81: odd side observation group 82: even side observation group

83: pusher 84: lower combustion stage

85: post-processing stage 86: drive cam

87: air supply port 90: garbage hopper

Claims (5)

In the cleaning device of a fluid bed, A fluid inlet 21 for injecting fluid, An inlet side weir 13 for adjusting the amount of the injected fluid; A fixed part 11 welded or assembled to the device to maintain rigidity; A movable part 12 continuously moving up and down or left and right to remove contaminants blocking the flow path, A driving device 30 connected to the power connecting device 40 for operating external power and operating the movable part; Down-comer 14 to guide the fluid down, Consists of a fluid outlet 22 to discharge the fluid that has been in contact with the gas coming from the bottom through the various stages, Cleaner for fluid bed. The driving device 30 according to claim 1, An external power device 40 to which a casing flexible connection pipe 41, a drive shaft external connection flexible 42, a connection rod 43, and a main drive rod 44 are connected to each other to connect with external power; A drive shaft 31 fixed to the drive shaft fixing link 32 at a lower portion thereof and rotating by the main drive rod 44; A drive link rod 36 connected to the drive link 33 to move left and right when the drive shaft 31 rotates; A triangular drive link 35 connected to both ends of the drive link bar 36 to move from side to side like a drive link bar; A movable part connecting rod 37 inserted into the triangular drive link 35 to move up and down by left and right movement of the triangular drive link 35; It is characterized by consisting of a drive unit 12 which is connected to each other by a movable connection rod 37, the vertical movement, Cleaner for fluid bed. In the apparatus for cleaning a fluidized bed of a multistage dry distillation furnace, Zigzag is formed in stage, one side is connected to the fixed part supply header tube 61, the other side is connected to the fixed part discharge header tube 62, and the cross-section forming plate 53 is welded to the upper surface, and water is A fixed tube group 51a and 51b flowing; Zigzag is formed in stages and is disposed adjacent to the fixed tube groups 51a and 51b, and one side is connected to the movable part supply header tube 63 and the other side is connected to the movable part discharge header tube 64. Plate 53 is welded, and the movable tube group 52a, 52b through which water flows; Cross section forming plate 53 and fixed tube group which are connected to the power connection device 40 and connected to the external power, and move the movable tube groups 52a and 52b up and down to be fixed to the movable tube groups 52a and 52b. And a drive device configured to remove contaminants by changing a gas flow path size between the cross-sectional forming plates 53 fixed to 51a and 51b. Apparatus for cleaning fluidized bed in multistage dry distillation furnace. In the cleaning device for a fluidized bed of a multi-tube heat exchanger, Zigzag stage is formed, one side is connected to the fixed part supply header tube 61, the other side is fixed part discharge header tube 62, the fixed water pipe unit 71 is a water flow therein; Zigzag is formed in stages, and is arranged next to the fixed water pipe unit 71, one side is connected to the movable part supply header tube 63, the other side is connected to the movable part discharge header tube 64, the water flows therein A movable water pipe unit a 72a; Zigzag is formed in stage and is arranged next to the movable water pipe unit a (71a), one side is connected to the movable part supply header tube 63, the other side is connected to the movable part discharge header tube 74, and water flows therein. A plurality of movable water pipe units b 72b; Connected to the power connection device 40 for connection with external power, the movable water pipe unit a 72a and the movable water pipe unit b 72b are moved in opposite directions to each other to move the movable water pipe unit a 72a and the movable water pipe. Consisting of a drive device adapted to remove contaminants by varying the size of the gas flow path between the units b 72b, Cleaner for fluidized bed of shell and tube heat exchanger. In the cleaning device of a fluidized bed of a two-stage dry distillation type waste incinerator, An odd-side pipe group 81 adapted to receive waste from the pusher 83 of the waste incinerator; An even-side pipe group 82 which receives waste from the pusher 83 of the waste incinerator but is disposed adjacent to the odd-side pipe group; The odd-side pipe group 81 and the even-side pipe group 82 are connected to the odd-side pipe group 81 and the even-side pipe group 82 in opposite directions to each other to move the odd-side pipe group 81 and the even-side pipe group 82. Composed of; drive cam 86 to change the gas flow path size between; Cleaner of fluidized bed in two stage dry distillation waste incinerator.