KR102083304B1 - Water-Cooled Grate easy to replace - Google Patents

Abstract

By implementing the attachment and detachment of the connection units connecting the water-cooled grate units arranged in the neighborhood, a water-cooled grate is disclosed that facilitates the individual replacement of the water-cooled grate units. The easy-to-replace water-cooled grate is provided with a body portion including a flat image surface on which waste is mounted on the upper side, an inner space to allow the coolant to flow therein, and a pipe to allow the coolant to be introduced or discharged into the inner space. When provided in plural, the water-cooled grate unit is arranged to be adjacent to each other, constituting one row, and arranged so that a plurality of the configured row to form a step; And one side is coupled to the specific water-cooled grate unit, the other side is coupled to the water-cooled grate unit and the neighboring water-cooled grate unit, so as to be interconnected between the neighboring water-cooled grate unit, the one side or the other side when uncoupling And a connection unit for releasing only the interconnection between the water-cooled grate unit coupled to the other side. As a result, the cooling efficiency is improved and the grate or the elbow can be individually replaced even if the grate damage or the cooling water leak occurs due to high temperature corrosion, thereby reducing the cost of repairing the incineration plant. The problem of lowering the overall life of the incineration plant can be prevented.

Description

Water-Cooled Grate easy to replace}

The present invention relates to a water-cooled grate, and more particularly, to a water-cooled grate that can be easily replaced individually by implementing a detachable connection unit for connecting the water-cooled grate units arranged in the neighborhood.

In general, the stalker-type incinerator is easy to build by spreading the waste on the fire grate and incineration, and it can be burned widely from low calorific value to high calorific value. It is used.

Such stocker type incinerators include air cooling and cooling water circulation in which the superheated grate is cooled as combustion air during the combustion of waste materials using high temperature and high temperature.

Among these, air-cooled grate has a problem of affecting product durability due to lack of cooling function due to the limitation of cooling efficiency due to combustion air and rapid damage to the grate (high temperature corrosion) .However, water-cooled grate continuously circulates the cooling water. By keeping the temperature of the surface (image surface) of the grate constant, there is an advantage that can suppress the degradation of durability and thereby extend the life of the product.

Korean Patent Publication No. 10-2006-0126127, which is based on the advantages of such a water-cooled grate, minimizes contaminants generated from combustion gases while burning waste at a high combustion temperature and uses a mobile water cooling jacket or a water cooling tube method. In the case of commercial use, a fixed water-cooled grate has been disclosed to prevent wear and tear of the water-cooled pipe due to movement of the grate itself.

However, the fixed water-cooled grate according to the prior art has a structure in which the coolant simply circulates along the diaphragm installed inside the grate to cool the grate surface of the grate. There is a problem that does not support the cooling efficiency as much as desired.

As a result, the grate damage caused by high temperature corrosion of the existing air-cooled grate and the shortening of the product life resulted in reducing the overall life of the incineration plant.In the conventional stalker type incinerator, incineration of waste through the grate In order to allow the coolant to flow in and out therein, some of the bent elbows were used. However, when the elbows are connected to the grate, a problem arises in that the coolant is leaked while being transferred.

Therefore, in order to solve this problem, even if the grate damage due to high temperature corrosion or the cooling water leakage problem occurs, it is required to find a way to replace the grate or the elbow individually.

Korean Laid-Open Patent No. 10-2006-0126127 (name of the invention: fixed water-cooled grate)

The present invention has been made to solve the above problems, an object of the present invention, by dividing the internal space into a plurality, so that the flow of the incoming cooling water is divided into a plurality of flow paths, so that the cooling efficiency is improved In another aspect, the present invention provides an easy-to-replace water-cooled grate to enable detachable attachment of a connection unit that connects water-cooled grate units arranged in a neighborhood.

Easy to replace the water-cooled grate according to an embodiment of the present invention for achieving the above object, a flat image surface on which waste is mounted on the upper side, the cooling water in the internal space and the cooling water flows into the inner space and the cooling water in the inner space A water-cooled grate unit having a body part including a pipe for introducing or discharging the gas, and being provided in plurality, are continuously disposed to be adjacent to each other to form one row, and the plurality of arranged rows are arranged to form a step. ; And one side is coupled to the specific water-cooled grate unit, the other side is coupled to the water-cooled grate unit and the neighboring water-cooled grate unit, so as to be interconnected between the neighboring water-cooled grate unit, the one side or the other side when disconnecting And a connection unit for releasing only the interconnection between the water-cooled grate unit coupled to the other side.

In addition, the water-cooled grate unit, extending in the longitudinal direction, the cover portion is provided with a plurality of covers that are connected to the lower side of the body portion, the inner space is sealed; And a second tube connected to one of the pipes and connected to one of the pipes and the other pipe to allow the cooling water to flow into the inner space when the pipes are plural. It may further include a tube portion provided with a tube.

And the connection unit is disposed above the portion where the pipe is connected to the first tube or the second tube when the water-cooled grate unit is coupled to the water-cooled grate unit, thereby disengaging the pipe and the pipe from the water-cooled grate unit. The tube connected to the pipe can be exposed to the outside.

The body portion may include a plurality of sidewalls bent downward in the longitudinal direction at both ends in the width direction and downwardly bent in the longitudinal direction along the plurality of sidewalls, such that a plurality of flow paths of the coolant flowed into the internal space may be provided. An inner wall to be separated by a flow path; And a step extending from the inner wall and having a through hole formed along a height direction of the insertion hole through which the connection unit is inserted and coupled, wherein the inner wall includes a first inner wall disposed at an inner center thereof, and the first inner wall of the first inner wall. It may be composed of a second inner wall and a third inner wall disposed at regular intervals on both sides.

And the connecting unit, the upper side is formed in a flat shape, when combined with a plurality of water-cooled grate unit, one side is mounted to abut the upper side of the step formed from the second inner wall provided in a specific water-cooled grate unit, The other side is mounted in contact with the upper side of the step formed extending from the third inner wall provided in the other water-cooled grate unit, so that the load of the waste mounted on the upper side is burdened, but the step of the specific water-cooled grate unit and the other water-cooled grate unit By making the sum of the areas which abut the step of the grate unit be 25 to 30% of the total area, it is possible to stably bear the load of the waste placed on the upper side.

The plurality of side walls may extend in the longitudinal direction of the body portion, and may be formed to extend in the longitudinal direction of the body portion from the horizontal side wall member and the horizontal member, the bottom surface of which may be parallel to the ground. The first inner wall, the second inner wall and the third inner wall is formed to be formed so as to extend in the longitudinal direction of the body portion, the horizontal inner wall member is formed so that the bottom surface is parallel to the ground And extending from the horizontal member in the longitudinal direction of the body portion, by being configured as a bent inner wall member formed to be bent downward, it is possible to increase the cooling water capacity of the internal space.

The cover part is connected to the lower side of the body part and is disposed between the first inner wall and the second inner wall or the third inner wall so as to be connected to the lower side of the first cover and the body part to seal the inner space. A second cover bonded to the second inner wall or the sidewall of the third inner wall and any one of the plurality of sidewalls, the second cover configured to seal the inner space, and the second cover includes the connection unit. When the coupling between the water-cooled grate unit and the pipe and the tube connected to the pipe may be formed so that the length is shorter than the length of the first cover by the length of the width of the connection unit.

In addition, the first inner wall, the second inner wall and the third inner wall are formed in the vertical direction in the longitudinal direction at the end of each flow path, the flow hole for connecting the flow path of the plurality of divided cooling water Each can be provided.

As a result, the cooling efficiency is improved and the grate or the elbow can be individually replaced even if the grate damage or the cooling water leak occurs due to high temperature corrosion, thereby reducing the cost of repairing the incineration plant. The problem of lowering the overall life of the incineration plant can be prevented.

1 is a view schematically showing a water-cooled grate easy to replace according to an embodiment of the present invention.
2 is a view showing a connection unit according to an embodiment of the present invention.
3 is a view showing a water-cooled grate unit according to an embodiment of the present invention.
4 is a view schematically showing a view of the water-cooled grate unit viewed from the lower side in order to explain the components of the water-cooled grate unit according to an embodiment of the present invention in more detail.
FIG. 5 is a view schematically showing a side view of the water-cooled grate unit in order to describe the components of the water-cooled grate unit according to an embodiment of the present invention in more detail.
6 is a view showing a first cover according to an embodiment of the present invention.
7 is a view showing a second cover according to an embodiment of the present invention.
8 is a view illustrating in more detail the flow path of the cooling water introduced to the water-cooled grate unit according to an embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in more detail with respect to the present invention. The embodiments introduced below are provided as an example to fully convey the spirit of the present invention to those skilled in the art to which the present invention pertains. The invention is not limited to the embodiments described below and may be embodied in other forms. Parts not related to the description are omitted in the drawings in order to clearly describe the present invention, in the drawings, the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals denote like elements throughout the specification.

1 is a view schematically showing a replaceable water-cooled grate (hereinafter collectively referred to as 'water-cooled grate') according to an embodiment of the present invention, Figure 2 is a connection according to an embodiment of the present invention The unit 20 is shown and FIG. 3 is a view showing a water cooled grate unit 10 according to an embodiment of the invention.

1 to 3, the water-cooled grate divides the internal space 120 into a plurality, so that the flow of the incoming cooling water is divided into a plurality of flow paths, thereby improving the cooling efficiency, and arranged in the neighborhood. The water-cooled grate unit 10 is provided to enable the detachable attachment of the connection unit 20 to each other.

To this end, the water-cooled grate is connected to the water-cooled grate unit 10 and the water-cooled grate unit 10 arranged in the neighborhood to improve the cooling efficiency by allowing the flow of the cooling water introduced into a plurality of flow paths, It may be configured as a connection unit 20 implemented in a removable structure.

Specifically, the water-cooled grate unit 10, when provided in plural, are arranged consecutively so as to be adjacent to each other, so as to form a single row, so that the plurality of arranged columns to form a step, the waste placed on the upper side When the water-cooled grate unit 10 is overheated by the high temperature and the high heat generated by incineration, cooling water for allowing the superheated water-cooled grate unit 10 to cool may be introduced into the inside and flowed out along the flow path to be discharged. .

That is, the present water-cooled grate unit 10 constitutes each row by mutual coupling between neighboring grate, and since such mutual coupling is maintained by the connection unit 20, when the coupling unit 20 is uncoupled, In addition, the water-cooled grate unit 10 can be replaced individually.

To this end, the water-cooled grate unit 10, the body portion 100, is formed extending in the longitudinal direction, is connected to the lower side of the body portion 100, a plurality of covers are provided so that the inner space 120 is sealed It may include a tube portion having a plurality of tubes connected to each of the cover portion 200 and the pipe 160 to be introduced or discharged.

In this case, when the plurality of pipes 160 are connected to one of the pipes 160, the tube 160 is connected to the first tube and the other pipe 160 to allow the coolant to flow into the internal space 120. A second tube may be provided to allow the coolant to flow out of the inner space 120.

The connection unit 20, one side is coupled to the specific water-cooled grate unit 10, the other side is coupled to the water-cooled grate unit 10 adjacent to the specific water-cooled grate unit 10, the water-cooled grate unit 10 adjacent to each other ) To be interconnected, but when only one side or the other side of the coupling is released, only the interconnection between the water-cooled grate unit 10 coupled to one side and the other side can be released.

To this end, the connection unit 20 extends in the height direction from the lower side of the connection member 21 and the connection member 21 formed in a flat shape, and is provided to be insertable and coupled to the grate unit, and inserted into the grate unit. At the time, it may be composed of a fixing member (21a) to maintain the engagement state between the grate unit and the connecting member (21). Here, the fixing member 21a may be a bolt.

Specifically, when the coupling unit 20 is coupled to the water-cooled grate unit 10, the pipe 160 is disposed above the portion where the pipe 160 is connected to the first tube or the second tube, thereby connecting with the water-cooled grate unit 10. When uncoupling, the pipe 160 and the tube connected to the pipe 160 may be exposed to the outside, so that even if a coolant leak occurs, each connection unit 20 is individually released to leak the coolant. It is easy to check the generated pipe 160 or tube, and to replace the pipe 160 or tube in which the leaking problem occurred separately.

4 is a view schematically showing the water-cooled grate unit 10 according to an embodiment of the present invention, and FIG. 5 is a side view of the water-cooled grate unit 10 according to an embodiment of the present invention. 6 is a view schematically showing a view, Figure 6 is a view showing a first cover 210 according to an embodiment of the present invention, Figure 7 is a second cover 220 according to an embodiment of the present invention 8 is a view showing in more detail the flow path of the coolant flowing into the water-cooled grate unit 10 according to an embodiment of the present invention. Hereinafter, the present water-cooled grate unit 10 will be described in more detail with reference to FIGS. 4 to 8.

As described above, when the water-cooled grate unit 10 is overheated by the high temperature and high heat generated during the incineration process, the body part 100 is introduced with cooling water to cool the overheated water-cooled grate unit 10. In order to be discharged after flowing along the flow path, a flat burn surface 110, the waste is mounted on the upper side, the inner space 120, the coolant is introduced into the circulation is formed extending from the burn surface 110, End 130 is bent downward in the longitudinal direction, extending from the inner wall, the insertion hole through which the fixing member (21a) is inserted into the stepped through the 135 formed in the height direction, downward in both directions in the width direction A plurality of sidewalls 140 to be bent, are formed to be bent downward in the longitudinal direction along the plurality of sidewalls 140, the flow path of the coolant flowed into the inner space 120 is divided into a plurality of flow paths The inner wall 150 and the inner space 120 may include a pipe 160 to allow the coolant to be introduced or discharged.

At this time, the plurality of side walls 140, extending in the longitudinal direction of the body portion 100, from the horizontal side wall member 141 and the horizontal member is formed so that the bottom surface is parallel to the ground of the body portion 100 It extends in the longitudinal direction, but may be composed of a bent sidewall member 142 is formed to be bent downward, and the shaft receiving groove 143 to be fitted to the shaft provided in the stocker.

At this time, the shaft receiving groove 143 is formed so as to surround only the upper portion of the shaft, even if fitted, when the connection unit 20 coupled to the water-cooled grate unit 10 coupled to the shaft is released, the corresponding water-cooled grate The unit 10 can be lifted upwards to disengage from the shaft.

That is, the water-cooled grate unit 10, the plurality of water-cooled grate unit 10 constituting each row is fitted to the shaft provided in the stocker, the mutual coupling between neighboring grate by the connection unit 20 Since it is retained, when the coupling unit 20 is disengaged, it is easy to disengage the corresponding grate fitted to surround only the upper part of the shaft from the shaft, thereby allowing individual replacement of the water-cooled grate unit 10. It can be done easily.

On the other hand, the inner wall 150 is the first inner wall 151 disposed in the inner center, and the second inner wall 152 and the third inner wall 153 disposed at regular intervals on both sides of the first inner wall 151. Can be configured.

Specifically, the first inner wall 151, the second inner wall 152 and the third inner wall 153, each extending in the longitudinal direction of the body portion 100, the horizontal type is formed so that the bottom surface is parallel to the ground The inner wall members 151a, 152a, and 153a extend from the horizontal member along the longitudinal direction of the body portion 100, and are bent downward wall members 151b, 152b, and 153b and their respective flow paths. It is formed in the vertical direction in the longitudinal direction at the end portion, it may be composed of flow holes (151c, 152c, 153c) to connect the flow path of the plurality of divided cooling water. Through this, as shown in FIG. 8, the flow paths of the plurality of divided coolants may be connected to allow the coolant to flow smoothly, and to increase the coolant capacity of the internal space 120.

In addition, when the second inner wall 152 and the third inner wall 153 is provided, the connection unit 20 is formed in a flat shape on the upper side, when combined with a plurality of water-cooled grate unit 10, one side is specified A third is provided to abut on the upper side of the step (135) extending from the second inner wall 152 provided in the water-cooled grate unit (10-1), the other side is provided in the other water-cooled grate unit (10-2) The upper side of the stepped 135 extending from the inner wall 153 is mounted so as to be mounted, so that the load of the waste mounted on the upper side is burdened, but the stepped end of the specific water-cooled grate unit 135 and the other step of the water-cooled grate unit ( The sum of the areas abutting 135) is 25-30% of the total area, whereby the load of the waste placed on the upper side can be reliably burdened.

On the other hand, the cover portion 200 is connected to the lower side of the body portion 100 in order to seal the internal space 120, in conjunction with the lower side of the body portion 100, but the first inner wall 151 and the first 2 is disposed between the inner wall 152 or the third inner wall 153, the first cover 210 and the lower portion of the body portion 100 to seal the inner space 120, the second inner wall 152 Or a second cover 220 disposed between the third inner wall 153 and one of the side walls 140 of the plurality of side walls 140 to seal the inner space 120.

Here, the second cover 220, the length of the first cover, so that when the coupling between the connection unit 20 and the water-cooled grate unit 10, the pipe 160 and the tube connected to the pipe 160 is exposed to the outside The length of the connection unit 20 may be shorter than the length of the 210.

While the above has been shown and described with respect to preferred embodiments of the invention, the invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

10: water-cooled grate unit 20: connection unit
21: connection member 21a: fixed member
100: body
110: image plane 120: interior space
130: end 135: step
140: sidewall
141: horizontal sidewall member 142: bent sidewall member
143: shaft receiving groove 150: inner wall
151: first inner wall 151a: first horizontal inner wall member
151b: first bent inner wall member 151c: first flow hole
152: second inner wall 152a: second horizontal inner wall member
152b: second bent inner wall member 152c: second flow hole
153: third inner wall 153a: third horizontal inner wall member
153b: third bent inner wall member 153c: third flow hole
160: pipe 200: cover
210: first cover 220: second cover
300: tube portion 310: tube

Claims (8)

A flat image surface on which waste is placed on the upper side, a body portion including a pipe for allowing the coolant to be introduced or discharged therein and an inner space to allow the coolant to flow therein, and a plurality of neighboring parts, if provided in plurality, A water-cooled grate unit which is arranged so as to be continuous so as to constitute one row and arranged in a plurality so that the configured row forms a step; And
One side is combined with a specific water-cooled grate unit, the other side is combined with the water-cooled grate unit adjacent to the specific water-cooled grate unit, so as to be interconnected between the neighboring water-cooled grate unit, when the one side or the other side when disconnected And a connection unit for releasing only interconnections between the water-cooled grate units coupled to the other side.
The water-cooled grate unit,
A cover part extending in a longitudinal direction and connected to a lower side of the body part, the cover part having a plurality of covers to seal the internal space; And
When the pipe is plural, the first tube is connected to any one pipe, the second tube is connected to the other pipe and the first tube to allow the coolant to flow into the inner space, the second tube to allow the coolant to flow out of the inner space It further comprises a tube portion that is provided,
The connection unit,
When the pipe is coupled to the water-cooled grate unit, the pipe is disposed above the portion connected to the first tube or the second tube, so that when the coupling with the water-cooled grate unit, the pipe and the tube connected to the pipe outside Easy to replace water-cooled grate, characterized in that to be exposed to. delete delete The method of claim 1,
The body portion,
A plurality of sidewalls bent downward in the longitudinal direction at both ends in the width direction and downwardly bent in the longitudinal direction along the plurality of sidewalls so that a flow path of the coolant flowing into the internal space is divided into a plurality of flow paths; inside wall; And
A stepped portion extending from the inner wall, the insertion hole penetrating along the height direction to allow the connection unit to be inserted and coupled;
The inner wall is
Easily replaceable water-cooled grate comprising a first inner wall disposed in the inner center, and a second inner wall and a third inner wall disposed at regular intervals on both sides of the first inner wall. The method of claim 4, wherein
The connection unit,
The upper side is formed in a flat shape, when combined with a plurality of water-cooled grate unit, one side is mounted in contact with the upper side of the step formed from the second inner wall provided in a specific water-cooled grate unit, the other side is another water-cooled grate unit Easy to replace the water-cooled grate characterized in that the load is placed on the upper side of the step formed from the third inner wall is provided in contact with the load of the waste mounted on the upper side. The method of claim 5,
The plurality of side walls,
A horizontal sidewall member extending in the longitudinal direction of the body portion, the bottom side is formed parallel to the ground and extending from the horizontal sidewall member along the longitudinal direction of the body portion, the bent sidewall member is formed to be bent downward Consists of,
The first inner wall, the second inner wall and the third inner wall,
A horizontal inner wall member extending in the longitudinal direction of the body portion, the bottom inner surface is formed to be parallel to the ground and extending from the horizontal inner wall member in the longitudinal direction of the body portion, the bent inner wall member is formed to be bent downward By being configured, easy to replace the water-cooled grate, characterized in that to increase the cooling water capacity of the internal space. The method of claim 6,
The cover part,
It is connected to the lower side of the body portion, it is disposed between the first inner wall and the second inner wall or the third inner wall, the first cover and the lower side of the body portion to the inner space is sealed, the first connection A second cover disposed between an inner wall of the second inner wall or one of the plurality of side walls, and the inner space is sealed;
The second cover,
When the coupling between the connection unit and the water-cooled grate unit, the length is shorter by the length of the width of the connection unit than the length of the first cover so that the pipe and the tube connected to the pipe is exposed to the outside. Easy to replace, water-cooled grate. The method of claim 4, wherein
The first inner wall, the second inner wall and the third inner wall,
Water flow grate easy to replace, characterized in that each flow path is formed in the vertical direction in the longitudinal direction, the flow holes for connecting the flow path of the plurality of divided cooling water is provided, respectively.

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