KR20160109117A - Hybrid steam boiler using chain stoker fire grate for solid feul - Google Patents

Abstract

The present invention relates to a composite steam boiler using a chain stoker grate. According to the present invention, provided is the composite steam boiler using a chain stoker grate, comprising: a combustion chamber (17); an upper steam drum (1); a lower water drum (2); a plurality of vertical curved pipes (3); and a chain stoker grate (12).

Description

TECHNICAL FIELD [0001] The present invention relates to a combined steam boiler using a solid fuel chain stoker grate,

The present invention relates to a combined steam boiler using a solid fuel chain stoker grate, and more particularly, to a steam boiler for a solid fuel such as a wood pellet, a wood chip, a palm husk, To a combined steam boiler using a solid fuel chain stoker grate.

Steam boilers using solid fuel, which are cheaper than oil, gas and electricity, are sold, but in particular, steam boilers using pellets in solid fuels have a problem because of their short development period and low technology level. Specifically, in the case of a conventional pellet steam boiler, a manufacturer of a steam boiler mainly produces oil and gas boilers, purchases a main body of oil and gas boilers, attaches a pellet combustion device instead of oil and gas burners, And in this case, it is a reality that steam boilers are shut down a number of times due to a lot of problems in the combustion apparatus.

Unlike oil, gas, and electricity, solid fuels are by-products, that is, ashes that are generated after burning. When the resulting material is not completely processed, new fuels are continuously injected into the combustion apparatus and ashes In a process in which new fuels are to be continuously burned, the ashes can not escape completely and the ashes that have not escaped may interfere with the combustion of the newly injected fuel, resulting in unstable combustion or fire.

Another problem is that the combustion apparatus is burnt at the same position of the combustion apparatus, so that the combustion apparatus is exposed to a high temperature and deformed to fail to function.

Also, among the limited fuels that are limited to specific fuels, the fuels are burned and require a high grade fuel due to problems such as the cranks. In case of emergencies in which fuel supply and demand is problematic, (Such as palm shells, wood chips, etc.) that have different ignition points and different burning qualities. Due to the many restrictions on the fuel, there are many costs It is inevitable to use the facility installed.

On the other hand, conventionally, a moving grade system, a burner system, and a screw system have been adopted as fuel supply systems for steam boilers.

In the moving grade method, when the plate moving forward and backward is stacked in a stepped shape and each plate moves forward or backward in a certain range, the fuel on the top is pushed down and falls down to the lower step. The conventional moving grade method has the following problems:

- When the quality of the fuel is bad, it gets tangled and tangled so that it does not burn. If you continue to push it down, you have to fall as it goes down to the bottom of the stepped plate. When incomplete burned fuel is covered, incomplete combustion gas is generated, and when it is severe, fire is turned off.

- Each of the bullwheels which move forward and backward in the form of stairs are continuously exposed to high temperature, so that they are heated to high temperature during the burning time to deform the bullwhip.

With respect to the above-mentioned moving-grade method, the burner system burns the burner such as oil or gas burner and burns the burned fuel while rotating the burner. On the other hand, the conventional burner system has the following problems:

- Solid fuel burns when it burns, but there is no device to treat the ash, and it is the structure that the ash is blown by the oxygen which is supplied for combustion. However, when the ash is 100% burned and does not come out like flour, burning a lot of fuel in a short time will result in a low burning rate. If the burning rate is low, Therefore, when the ash is piled up without being blown by the wind and the ash is not pushed out, the incomplete combustion of the fuel injected is accelerated more frequently, so that a larger ash (ie, unburned portion of ashes) is accumulated and then the fire is frequently turned off. As a result, there arises a problem that the efficiency is unstable and the efficiency is reduced.

Another conventional screw method is a method in which a plurality of screws are installed in the combustion chamber in the advancing direction of the combustion, that is, in the longitudinal direction according to the capacity of the boiler, thereby pushing the burned fuel. This screw type has a structure that water is circulated by forming a blister inside the screw so that the screw is exposed to the fuel and the flame on which it is burnt and is resistant to the high temperature. However, the screw is deformed due to the high temperature, and the screw can not rotate and the fuel is not moved, so that unstable combustion occurs and the fire is turned off. In this case, the operation of the boiler must be stopped and the screw must be replaced. Since such a case frequently occurs with a period of 3 to 4 weeks, not only a great deal of cost is incurred but also a problem occurs which causes a lot of loss in the production process.

It is an object of the present invention to provide an apparatus and a method for manufacturing a steam boiler, which are capable of minimizing incomplete combustion of a combustion gas and maximizing the heat transfer effect by not only generating a problem of a combustion apparatus by manufacturing a steam boiler by attaching a pellet combustion apparatus instead of oil and gas burners The present invention provides a combined steam boiler using a solid fuel chain stocker grate.

It is another object of the present invention to provide a combined steam boiler using a solid fuel chain stoker grate that does not incur the incomplete combustion and fire-off problems due to incomplete reprocessing.

Yet another object of the present invention is to provide a combined steam boiler using a solid fuel chain stocker grate capable of preventing the solid fuel from being deformed due to continuous combustion at the same position of the combustion apparatus, .

It is still another object of the present invention to provide a solid fuel chain stocker having a structure capable of freely using pellets of different qualities and capable of burning solid fuels of a different firing point and different firing properties (e.g., palm shell, wood chips, etc.) And to provide a combined steam boiler using a grate.

It is another object of the present invention to provide a combined steam boiler using a solid fuel stoker grate without the problems of the moving grade system, the burner system and the screw system as the fuel supply system of the steam boiler.

In order to achieve the above-mentioned object of the present invention,

1. Combustion chamber where solid fuel is burned,

An upper steam drum disposed on top of the combustion chamber, the upper steam drum including a plurality of associations disposed horizontally within the upper steam drum to deliver a combustion gas of the combustion chamber, Wherein the upper steam drum, the lower steam drum,

A lower water drum disposed at both left and right ends of the combustion chamber,

A plurality of vertical curved tubes configured to transfer water of the lower water drum to the upper steam drum while being spaced apart from each other by a predetermined distance, The plurality of vertical curved tubes maintaining at least a certain section in a vertical direction from the lower water drum toward the upper steam drum while being spaced apart from each other with a pin member interposed therebetween;

And the seat portion is configured to be burned while moving in a state in which the injected solid fuel is seated, the seat portion being disposed at a lower portion of the lower water drum to constitute a bottom portion of the combustion chamber A chain stoker grate,

Wherein the plurality of vertical curved tubes include a plurality of vertical curved tube groups and the plurality of vertical curved tube groups are connected to the upper steam drum by different paths to thereby form a passage of the combustion gas flow between the different paths A combined steam boiler using a solid fuel chain stoker grate is provided.

2. The method according to 1,

A composite steam boiler using a solid fuel chain stoker grate is provided, wherein the fin member is a steel plate.

3. The method according to 1,

Wherein the combustion gas flow is directed from a lower portion of the combustion chamber to a first pass of a lower one of the plurality of vertical curvilinear tubes and a second pass from a lower portion of the plurality of vertical- And a third path from the passage of the combustion gas flow to the plurality of associations in the upper vapor drum. The solid fuel stacker according to claim 1, A steam boiler is provided.

4. The method according to 1,

And a fuel injector for injecting the solid fuel into the combustion chamber. The injected solid fuel is disposed on the chain stoker grate and is subjected to a combustion process such as preheating, drying, combustion, ignition loss reduction, Wherein a solid fuel stacker grate is used.

5. The method according to any one of 1 to 4 above,

Wherein the plurality of associations are arranged in correspondence with each of the plurality of associations prior to the plurality of associations and the high pressure air is injected at a high rate into the plurality of associations over a period of time to clean the fly ash adhered to the plurality of associations of the upper steam drum There is provided a combined steam boiler using a solid fuel chain stocker grate, further comprising an associated cleaning device having a plurality of high-pressure air nozzles for providing a high-pressure air nozzle.

6. The method according to any one of claims 1 to 4,

A plurality of air chambers for injecting the regulated air required for the solid fuel below the chain stoker grate, and a handle type air conditioner for adjusting the amount of air required for each of the plurality of air chambers. A combined steam boiler using a solid fuel chain stoker grate is provided.

7. The method according to 6 above,

Further comprising a box for collecting the ash falling down to the bottom of the chain stoker grate and a plurality of sliding type reprocessing pushers for exiting the collected material in the box for collecting the ash out of the steam boiler,

Wherein the ash falls into the plurality of air chambers when it falls between the gaps of the chain stoker grate,

Both side surfaces of the air chamber are inclined so that the falling ash collects on one side,

Wherein the reprocessing pusher is configured to block the hole for discharging the ash out and to open and close the hole when the reprocessing pusher is moved back and forth and to push the ash into the hole while moving back and forth , A combined steam boiler using a solid fuel chain stoker grate is provided.

8. The method according to any one of the above 1 to 4,

And a thermal radiation unit for burning the solid fuel. The thermal radiation unit induces a combustion gas in the combustion chamber to increase a combustion temperature in the combustion chamber, There is provided a combined steam boiler using a solid fuel chain stoker grate, characterized in that it is configured in a predetermined size and shape to guide the ash to the reprocessing facility.

9. The method according to 8,

Wherein the combustion chamber further comprises at least one partition wall for enhancing the residence time of the combustion gas and the heat transfer effect in the combustion chamber.

10. The method according to item 4 above,

Characterized in that the fuel injector (14) forms a fan-shaped trajectory in which a fuel layer having a predetermined thickness is uniformly formed on the chain stoker grate inside the combined type steam boiler, and the solid fuel is injected A combined steam boiler using a chain stoker grate is provided.

11. Combustion chamber where solid fuel is burned,

An upper steam drum disposed on top of the combustion chamber, the upper steam drum including a plurality of associations disposed horizontally within the upper steam drum to deliver a combustion gas of the combustion chamber, Wherein the upper steam drum, the lower steam drum,

A lower water drum disposed at both left and right ends of the combustion chamber,

A plurality of vertical curved tubes arranged to be able to transfer water of the lower water drum to the upper steam drum while being spaced apart from each other by a predetermined distance, A plurality of vertical curved tubes that maintain a vertical interval from the lower water drum toward the upper steam drum while maintaining a constant interval from each other with the member therebetween;

And the seat portion is configured to be burned while moving in a state in which the injected solid fuel is seated, the seat portion being disposed at a lower portion of the lower water drum to constitute a bottom portion of the combustion chamber A chain stoker grate,

Said plurality of vertical curvilinear tubes being connected to said upper steam drum by different paths thereby establishing a path of combustion gas flow between the different paths,

Wherein the combustion gas flow is directed from a lower portion of the combustion chamber to a first pass of a lower one of the plurality of vertical curvilinear tubes and a second pass from a lower portion of the plurality of vertical- A second pass to the passageway, and a third pass of the third pass from the combustion gas flow passageway to the plurality of associations in the upper steam drum. Is provided.

12. Combustion chamber where solid fuel is burned,

An upper steam drum disposed on top of the combustion chamber, the upper steam drum including a plurality of associations disposed horizontally within the upper steam drum to deliver a combustion gas of the combustion chamber, Wherein the upper vapor drum, the lower vapor drum,

A lower water drum disposed at both left and right ends of the combustion chamber,

A plurality of vertical curved tubes configured to vertically maintain a horizontal interval and to transfer water of the lower water drum to the upper steam drum in a spaced apart state, A plurality of vertical curved tubes that maintain vertical positions in a direction from the lower water drum toward the upper steam drum while maintaining a certain distance from each other with a pin member therebetween for increasing the area,

And the seat portion is configured to be burned while moving in a state in which the injected solid fuel is seated, the seat portion being disposed at a lower portion of the lower water drum to constitute a bottom portion of the combustion chamber A chain stoker grate,

Wherein the plurality of vertical curved tubes include a plurality of vertical curved tube groups, the plurality of vertical curved tube groups being connected to the upper steam drum by different paths, thereby establishing a path of the combustion gas flow between the different paths,

Further comprising a box for collecting the ash falling down to the bottom of the chain stoker grate and a plurality of sliding type reprocessing pushers for exiting the collected material in the box for collecting the ash out of the steam boiler,

Wherein the ash falls below the chain stoker grate when falling between the gaps of the chain stoker grate and falls into a plurality of air chambers for injecting air necessary for the solid fuel,

Both side surfaces of the air chamber are inclined so that the falling ash collects on one side,

Wherein the reprocessing pusher is configured to block the hole for discharging the ash out and to open and close the hole when the reprocessing pusher is moved back and forth and to push the ash into the hole while moving back and forth , A combined steam boiler using a solid fuel chain stoker grate is provided.

13. Combustion chamber where solid fuel is burned,

An upper steam drum disposed on top of the combustion chamber, the upper steam drum including a plurality of associations disposed horizontally within the upper steam drum to deliver a combustion gas of the combustion chamber, Wherein the upper vapor drum, the lower vapor drum,

A lower water drum disposed at both left and right ends of the combustion chamber,

A plurality of vertical curved tubes arranged to be able to transfer water of the lower water drum to the upper steam drum while being spaced apart from each other by a predetermined distance, The plurality of vertical curved tubes maintaining at least a certain section in a vertical direction from the lower water drum toward the upper steam drum while being spaced apart from each other with a member therebetween;

And the seat portion is configured to be burned while moving in a state in which the injected solid fuel is seated, the seat portion being disposed at a lower portion of the lower water drum to constitute a bottom portion of the combustion chamber A chain stoker grate,

And a thermal radiation unit for burning the solid fuel. The thermal radiation unit induces a combustion gas in the combustion chamber to increase a combustion temperature in the combustion chamber, There is provided a combined steam boiler using a solid fuel chain stoker grate, characterized in that it is configured in a predetermined size and shape to guide the ash to the reprocessing facility.

According to the present invention, since the chain stoker system is adopted and the combustion gas flow can be made in three passes, it is possible to provide a combustion apparatus in which a pellet combustion device is attached instead of oil and gas burners to produce a steam boiler In addition, the incomplete combustion of the combustion gas in the combustion chamber can be minimized and the heat transfer effect can be maximized.

Further, according to the present invention, there is no problem in the reprocessing at all since it is a natural falling system by rotating even in the reprocessing part, and even if there is a problem that the fuel is entangled with a low grade (a crank phenomenon) It is possible to prevent the incomplete combustion and the fire from being turned off.

Further, according to the present invention, there is no problem of a combustion device of a steam boiler with a combustion device to which a combustion section is fixed. More specifically, according to the present invention, since the high temperature does not continuously stay in one place but is a rotating grate, the portion exposed to high temperature is continuously changed, thereby preventing a problem caused by deformation of the grate.

Further, according to the present invention, it is possible to freely use pellets of different qualities by using a chain stoker grate and having a structure capable of three-pass combustion gas flow, and a solid fuel of a different kind , Palm husks, wood chips, etc.).

In addition, according to the present invention, it is possible to provide a composite steam boiler which does not have the problems of the moving grade system, the burner system, and the screw system, which is a conventional fuel supply system, by supplying the solid fuel to the chain stoker grate.

In addition, according to the present invention, since the air conditioner is provided, combustion in the combustion chamber can be smoothly performed.

Further, according to the present invention, since a plurality of reprocessing pushers are provided, it is possible to smoothly process the material falling down to the bottom of the chain stoker grate.

1 is a front view of a combined steam boiler using a solid fuel chain stocker according to the present invention.
2 is a right side view of a combined steam boiler using a solid fuel chain stocker according to the present invention.
FIG. 3 is a schematic view showing a structure of a plurality of vertical curved tubes having a water drum, a steam drum, and a plurality of vertical curved tube groups connecting a water drum and a steam drum constituting a combined steam boiler using the solid fuel chain stocker according to the present invention. Fig.
Fig. 4 is a view showing a vertical curved tube shown in Fig. 3 and a pin member (steel plate) connecting them. Fig.
Fig. 5 is a plan view of an associated cleaning device with a high-pressure air nozzle corresponding to a plurality of associations disposed in the steam drum shown in Fig. 2;
FIG. 6 is a photograph showing an actual cleaning apparatus of FIG.
Figure 7a is a view showing the closing of the reprocessing pusher when the reprocessing pusher lever is in place and Figure 7b is a view showing the opening of the reprocessing pusher when the reprocessing pusher lever is pulled.

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

FIG. 1 is a front view of a combined steam boiler using a solid fuel chain stocker according to the present invention, and FIG. 2 is a right side view of a combined steam boiler using a solid fuel chain stocker according to the present invention.

1 and 2, a combined steam boiler using a solid fuel chain stocker according to the present invention basically comprises a combustion chamber 17, an upper steam drum 1, a lower water drum 2, A pipe 3, and a chain stoker grate 12.

Specifically, in the combustion chamber 17, solid fuel such as wood pellets, wood chips, palm shells, and coal is burned.

An upper steam drum (1) is disposed at an upper portion of the combustion chamber (17). The upper steam drum 1 comprises a plurality of associations 6 arranged horizontally inside the upper steam drum 1 and conveying the combustion gases of the combustion chamber 17, And communicates with the combustion chamber at one end thereof.

The lower water drum 2 is disposed at the lower left and right ends of the combustion chamber 17.

Preferably, the upper steam drum 1 installed at the upper part is provided as a horizontal cylindrical drum, and the lower water drum 2 installed at the lower part is constituted by a smaller horizontal cylindrical cylinder.

The plurality of vertical curved tubes 3 are configured to be able to transfer the water of the lower water drum 2 to the upper steam drum 1 while being spaced apart at regular intervals. As shown in FIG. 3, the plurality of vertical curved tubes 3 are arranged at a predetermined distance from each other with the pin member 4, which is a steel plate, interposed therebetween for airtightness maintenance in the combustion chamber and heat transfer area increase, The predetermined section is maintained in a vertical state from the lower water drum 2 toward the upper steam drum 1. [

On the other hand, as shown in Figs. 3 and 4, the pin member 4, which is a steel plate, is disposed between the vertical curved tube (water tube) and the vertical curved tube (water tube) It is welded to maximize the heat transfer area of the circular water pipe by connecting the water pipe and the water pipe together. By sealing the water pipe between the water pipe and the water pipe with the pin member (4), loss of heat energy dissipated to the outside is prevented, The boiler water is absorbed efficiently.

The chain stoker grate (12) has a seat portion rotated by a driving motor, and the seat portion is configured to burn while moving the injected solid fuel in a seated state, and the seat portion is disposed at a lower portion of the lower water drum (17).

A high-speed blower (not shown) for supplying outside air to the combustion chamber 17 for increasing the combustion efficiency of the combustion chamber 17 is provided on the upper portion of the chain stoker grate 12, and a heat radiation portion 5 having a round arch shape is provided for enhancing the heat radiation efficiency of the combustion chamber 17 So that the burning rate and the radiation rate of the solid fuel can be increased.

Below the chain stoker grate 12, as shown in Figs. 1 and 2, the amount of air required for each of the plurality of air chambers 9 and the plurality of air chambers is adjusted to inject the regulated air necessary for the solid fuel And may include a handle-type air-conditioner hanger 10.

In addition, a box for collecting ash falling down to the bottom of the stoker grate 12 of the air tank, and a plurality of reprocessing pushers 11 of a sliding type for discharging the collected material to the box for collecting ash, .

As shown in FIG. 2, the post-combustion material falls into a plurality of air chambers 9 when falling between the gaps of the chain stoker grate 12, and both side surfaces of the air chamber 9 are inclined so that the falling ashes collect on one side.

As shown in FIGS. 7A to 7B, the reprocessing pusher 11 is configured to close the hole for discharging the ash out, and to open and close the hole when the reprocessing pusher 11 is moved back and forth by the operation of the reprocessing pusher lever And is configured so as to push the ash into the hole while moving back and forth.

As shown in FIGS. 1 and 2, the combined steam boiler using the solid fuel stoker grate according to the present invention comprises an arc-shaped refractory material on the upper portion of the chain stoker grate 12, and a thermal radiation for assisting combustion of the solid fuel (5). The thermal radiation section 5 induces the combustion gas in the combustion chamber 17 under the thermal radiation section 5 to increase the combustion temperature in the combustion chamber 17 and also increases the residence time of the combustion gas by the length of the thermal radiation section 5 (A, B), the combustion gas flow passage (15), and a plurality of associations (6), and functions to increase the heat transfer effect. It is constructed in a certain size and shape to be guided to reprocessing facility.

As shown in FIG. 1, a combined steam boiler using a solid fuel chain stoker grate according to the present invention is constructed in such a manner that the upper part is closed and the lower part is opened to partially restrict the flow of the combustion gas in the combustion chamber, And a partition 16 for further increasing the time and heat transfer effect. Although one partition is illustrated in FIG. 1, it may include additional partition (s) in view of the residence time of the combustion gas in the combustion chamber and the heat transfer effect.

In addition, the complex type steam boiler using the solid fuel stoker grate according to the present invention forms a fan-shaped trajectory configured to uniformly form a fuel layer of a certain thickness on the chain stoker grate 12 therein, And a fuel injector 14.

1 and 2, reference numeral 19 denotes a manhole for cleaning or managing an association, and reference numeral 20 denotes a manhole for evacuating water in the steam drum 1 or the water drum 2 by gravity to water on the floor surface Drain.

3, the plurality of vertical curved tube bundles 3 include a plurality of vertical curved tube bundles A and B and the plurality of vertical curved tube bundles A and B have different paths, And is connected to the steam drum 1 to open a passage of the combustion gas flow between the different paths.

Although a plurality of vertical curved tube groups are exemplified as the upper vertical tube group A and the lower vertical tube group B in the above description, the present invention is not limited thereto, A curved tube group can be added.

In the combined steam boiler using the solid fuel chain stoker grate according to the present invention, a chain stoker grate 12 is applied as a combustion part, and a boiler facility installed on the combustion part of the chain stoker grate 12 has a steam drum One steam drum 1 and one water drum 2 may be provided on the lower left and right sides of the upper drum 1. The upper central steam drum 1 and the lower left and right water drums 2 And a plurality of vertical curved tubes 3 are connected between the upper steam drum 1 and the upper steam drum 1 so as to circulate the boiler water. Therefore, the combustion gas (thermal gas) generated by combustion of the solid fuel passes through the plurality of vertical curved tubes 3 to transmit heat energy to the boiler water in the plurality of vertical curved tubes 3, The water in the vertical tubes 3 and the upper steam drum 1 is heated and converted into steam by passing heat energy again to the boiler water while passing through a plurality of joints 6 installed horizontally in the steam generator 1, , And the steam is supplied to the outside through a steam supply unit (not shown).

 Preferably, the above-described combustion gas flow of the combined steam boiler using the solid fuel chain stoker grate according to the present invention is supplied from the lower portion of the combustion chamber 17 to a lower portion of a plurality of vertical curved tube groups A second pass from the bottom of the vertical curved tube bundle B to the combustion gas flow passages 15 of the plurality of vertical curved tube bundles, a second pass from the combustion gas flow passages 15 to the top of the upper steam drum 1, Of the second path to the association 6 of the second path.

As shown in FIG. 1, the combined steam boiler using the solid fuel chain stoker grate according to the present invention includes a fuel injector (not shown) for injecting solid fuel such as wood pellets, wood chips, palm husks, and coal into the combustion chamber 17 The solid fuel injected through the fuel injector 14 is disposed on the chain stoker grate 12 and has a flow path that is finally converted into ash after burning such as preheating, drying, burning, and ignition loss reduction do.

On the other hand, in the plurality of associations 6 of the upper steam drum 1, fly ash is adhered to the inside depending on the use of the boiler, and when the attached fly ash obstructs the flow of the combustion gas in a plurality of associations, (6), the process of transferring heat energy to the boiler water again is interrupted. Accordingly, the combined steam boiler according to the present invention is arranged in correspondence with each of a plurality of associations before the plurality of associations 6, as shown in Fig. 1, for cleaning the deposited arsenic, 6, there is provided an associated cleaning device 7 having a plurality of high-pressure air nozzles 8 for jetting high-pressure air to the inside of a plurality of associations 6 at a high speed over a certain period of time.

1: steam drum
2: water drum
3: vertical curve tube
4: Pin member
5: Thermal radiation
6: Association
7: Associative cleaning device
8: High-pressure air nozzle
9: Air conditioning
10: Air conditioning wreck
11: Reprocessing pusher
12: Chain Stocker Grate
13: Reprocessing pusher lever
14: fuel injector
15: combustion gas flow passage
16:
17: Combustion chamber
18: Outlet passage
19: Manhole
20: Drain

Claims (13)

A combustion chamber 17 in which the solid fuel is burned,
The upper steam drum 1 is disposed horizontally inside the upper steam drum 1 to transfer the combustion gas of the combustion chamber 17 to the upper steam drum 1, Wherein said plurality of associations (6) are each connected at one end thereof to said combustion chamber (17), said upper steam drum (1), said upper steam drum
A lower water drum 2 disposed at the lower left and right ends of the combustion chamber 17,
A plurality of vertical curved tubes (3) configured to be able to transfer water of the lower water drum (2) to the upper steam drum (1) while being spaced apart at regular intervals, (1) from the lower water drum (2) to the upper steam drum (1) while keeping a certain distance from each other with the pin member (4) interposed therebetween for airtightness maintenance in the combustion chamber and increase in heat transfer area The plurality of vertical curved tubes (3), and
Wherein the fixed part is disposed in the lower part of the lower water drum (2) to burn the solid fuel while moving in a state in which the injected solid fuel is seated, And a chain stoker grate (12) constituting a bottom portion of the chain stoker grate
The plurality of vertical curved tubes (3) include a plurality of vertical curved tube groups, and the plurality of vertical curved tube groups are connected to the upper steam drum (1) by different paths so that the combustion gas flows Wherein the steam generator is a steam generator. The method according to claim 1,
Characterized in that the pin member (4) is a steel plate. The method according to claim 1,
Wherein the combustion gas flow comprises a first pass from a lower portion of the combustion chamber (17) to a lower one of the plurality of vertical curved tube groups, a second pass from a lower portion of the plurality of vertical tube tubes A second path to the path of the combustion gas flow, and a third path of the third path from the path of said combustion gas flow to said plurality of associations in said upper steam drum (1). Combined steam boiler using stoker grate. The method according to claim 1,
The solid fuel injected is further disposed on the chain stoker grate (12), and is supplied to the combustion chamber (17) for combustion, such as preheating, drying, , And a flow path that is finally converted to ash after passing through the solid fuel chain stoker grate. 5. The method according to any one of claims 1 to 4,
In order to clean the fly ash adhering to the plurality of associations (6) of the upper steam drum (1), a plurality of associations (6) are arranged in front of the plurality of associations, Further comprising an associated cleaning device (7) having a plurality of high-pressure air nozzles (8) for high-speed injection into said plurality of associations (6). . 5. The method according to any one of claims 1 to 4,
A plurality of air bags (9) for injecting the regulated air required for the solid fuel below the chain stoker grate (12) and a handle type air conditioner hanger (10) for adjusting the required air quantity of each of the plurality of air bags ). ≪ / RTI > A combined steam boiler using a solid fuel chain stocker grate. The method according to claim 6,
A plurality of sliding-type reprocessing pushers 11 are added to a box for collecting the ash falling down to the lower portion of the chain stoker grate 12 and a material to be collected in the box for collecting the ash out of the steam boiler , ≪ / RTI &
The ash falls into the plurality of air chambers (9) when it falls between the gaps of the chain stoker grate (12)
Both sides of the air room (9) are inclined so that the falling ash collects on one side,
The reprocessing pusher 11 is configured to block the hole for discharging the ash out of the ash, and to open and close the hole when the reprocessing pusher 11 is moved back and forth, and to move the ash back into the hole while moving back and forth Wherein the solid fuel stoker grate is a solid fuel stack. 5. The method according to any one of claims 1 to 4,
The thermal shock absorber according to claim 1, further comprising a heat radiation part (5) made of an arched refractory material on the upper portion of the chain stoker grate (12) to assist combustion of the solid fuel. The thermal radiation part induces a combustion gas in the combustion chamber (17) 17. The multi-type steam boiler as claimed in claim 16, wherein the combustion chamber is formed in a predetermined size and shape so as to increase the combustion temperature in the combustion chamber and to direct the ash generated after combustion to the reprocessing facility. 9. The method of claim 8,
Further comprising at least one partition wall (16) for increasing the residence time of the combustion gas and the heat transfer effect in the combustion chamber. 5. The method of claim 4,
Characterized in that the fuel injector (14) forms a fan-shaped locus so that a fuel layer of a certain thickness is uniformly formed on the chain stoker grate (12) inside the combined type steam boiler, and the solid fuel is injected. Combined steam boiler using solid fuel chain stocker grate. A combustion chamber 17 in which the solid fuel is burned,
The upper steam drum 1 is disposed horizontally inside the upper steam drum 1 to transfer the combustion gas of the combustion chamber 17 to the upper steam drum 1, Wherein said plurality of associations (6) are each connected at one end thereof to said combustion chamber (17), said upper steam drum (1), said upper steam drum
A lower water drum 2 disposed at the lower left and right ends of the combustion chamber 17,
A plurality of vertical curved tubes (3) configured to be able to transfer water of the lower water drum (2) to the upper steam drum (1) while being spaced apart at regular intervals, (1) from the lower water drum (2) to the upper steam drum (1) while keeping a certain distance from each other with the pin member (4) interposed therebetween for airtightness maintenance in the combustion chamber and increase in heat transfer area , Said plurality of vertical curved tubes (3), and
Wherein the fixed part is disposed in the lower part of the lower water drum (2) to burn the solid fuel while moving in a state in which the injected solid fuel is seated, And a chain stoker grate (12) constituting a bottom portion of the chain stoker grate
Said plurality of vertical curved tube groups being connected to said upper steam drum (1) by different paths, thereby establishing a passage of combustion gas flow between said different paths,
Wherein said combustion gas flow comprises a first pass from a lower portion of said combustion chamber (5) to a lower one of said plurality of vertical curvilinear tube sets, a second pass from a lower portion of said plurality of vertical- And a third path from the combustion gas flow passage to the plurality of associations in the upper steam drum (1), the three-pass structure of the solid fuel chain stocker grate Combined steam boiler using. A combustion chamber 17 in which the solid fuel is burned,
The upper steam drum 1 is disposed horizontally inside the upper steam drum 1 to transfer the combustion gas of the combustion chamber 17 to the upper steam drum 1, Wherein said plurality of associations (6) are connected to said upper steam drum (1), said upper steam drum
A lower water drum 2 disposed at the lower left and right ends of the combustion chamber 17,
A plurality of vertical curved tubes (3) configured to be able to transfer water of the lower water drum (2) to the upper steam drum (1) while being spaced vertically at regular intervals and spaced apart, The tube (3) is kept at a certain distance from each other with the pin member (4) interposed therebetween for the airtightness maintenance in the combustion chamber and the heat transfer area increase, and at least a certain section is provided from the lower water drum (2) A plurality of vertical curved tubes 3,
Wherein the fixed part is disposed in the lower part of the lower water drum (2) to burn the solid fuel while moving in a state in which the injected solid fuel is seated, And a chain stoker grate (12) constituting a bottom portion of the chain stoker grate
The plurality of vertical curved tubes (3) include a plurality of vertical curved tube groups, and the plurality of vertical curved tube groups are connected to the upper steam drum (1) by different paths so that the combustion gas flows Opening a passage,
A plurality of sliding-type reprocessing pushers 11 are added to a box for collecting the ash falling down to the lower portion of the chain stoker grate 12 and a material to be collected in the box for collecting the ash out of the steam boiler , ≪ / RTI &
The ash falls below the chain stoker grate (12) when falling between the gaps of the chain stoker grate (12) and falls into a number of air chambers (9) for injecting the air required for the solid fuel,
Both sides of the air room (9) are inclined so that the falling ash collects on one side,
The reprocessing pusher 11 is configured to block the hole for discharging the ash out of the ash, and to open and close the hole when the reprocessing pusher 11 is moved back and forth, and to move the ash back into the hole while moving back and forth Wherein the solid fuel stoker grate is a solid fuel stack. A combustion chamber 17 in which the solid fuel is burned,
The upper steam drum 1 is disposed horizontally inside the upper steam drum 1 to transfer the combustion gas of the combustion chamber 17 to the upper steam drum 1, Wherein said plurality of associations (6) are connected to said upper steam drum (1), said upper steam drum
A lower water drum 2 disposed at the lower left and right ends of the combustion chamber 17,
A plurality of vertical curved tubes (3) configured to be able to transfer water of the lower water drum (2) to the upper steam drum (1) while being spaced apart at regular intervals, (1) from the lower water drum (2) to the upper steam drum (1) while keeping a certain distance from each other with the pin member (4) interposed therebetween for airtightness maintenance in the combustion chamber and increase in heat transfer area , Said plurality of vertical curved tubes (3), and
Wherein the fixed part is disposed in the lower part of the lower water drum (2) to burn the solid fuel while moving in a state in which the injected solid fuel is seated, And a chain stoker grate (12) constituting a bottom portion of the chain stoker grate
The thermal shock absorber according to claim 1, further comprising a heat radiation part (5) made of an arched refractory material on the upper portion of the chain stoker grate (12) to assist combustion of the solid fuel. The thermal radiation part induces a combustion gas in the combustion chamber (17) 17. The multi-type steam boiler as claimed in claim 16, wherein the combustion chamber is formed in a predetermined size and shape so as to increase the combustion temperature in the combustion chamber and to direct the ash generated after combustion to the reprocessing facility.

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