Furnace wall structure of incinerator

Abstract

The utility model provides an incinerator wall structure, which belongs to the technical field of waste incineration and comprises a refractory layer, a heat insulation layer, a water cooling layer and a heat insulation layer. Wherein the refractory layer is located on the innermost side of the furnace wall, and the heat-insulating layer, the water-cooling layer and the heat-insulating layer are sequentially located on the outer side of the refractory layer; the refractory layer comprises a refractory brick layer, the refractory brick layer is formed by splicing a plurality of refractory bricks end to end, each refractory brick comprises a main body piece and splicing pieces arranged at the two ends of the main body piece respectively, the two splicing pieces are each of an L-shaped structure and are arranged in a central symmetry mode along the axis of the main body piece, and a splicing groove is formed between each splicing piece and the end of the main body piece; one end of one splicing piece on the other refractory brick can be inserted into the splicing groove, and a gap is reserved between the splicing piece and the splicing groove; according to the utility model, the fire-resistant layer on the furnace wall can be prevented from expanding during waste incineration, so that the fire-resistant layer is prevented from cracking and collapsing.

Description

Technical Field

[0001] This utility model relates to the technical field of waste incineration equipment, specifically to an incinerator wall structure. Background Technology

[0002] An incinerator is an environmentally friendly device that uses high temperatures to burn waste gas, waste liquid, solid waste, fuel, medical waste, household waste, animal carcasses, etc., to reduce or minimize their quantity. It also utilizes some of the thermal energy from the incinerating medium. The refractory structure inside the furnace is one of the most important components of the entire system; it is crucial for preventing wear, corrosion, and coking.

[0003] Existing incinerator refractory structures are usually formed by stacking refractory bricks or casting refractory materials to create the heat-resistant, heat-insulating, and heat-resistant layers. Due to the complex atmosphere inside the incinerator, which has high scouring and corrosiveness, traditional furnace wall refractory structures are prone to cracking and collapse due to thermal expansion stress without any other protective or reinforcing measures, leading to accidents. Utility Model Content

[0004] In view of this, the present invention provides a furnace wall structure for an incinerator. The present invention can prevent the refractory layer on the furnace wall from expanding during waste incineration, thereby preventing the refractory layer from cracking and collapsing.

[0005] To solve the above-mentioned technical problems, this utility model provides an incinerator wall structure, including a refractory layer, a heat insulation layer, a water cooling layer, and a heat insulation layer; wherein the refractory layer is located on the innermost side of the furnace wall, and the heat insulation layer, the water cooling layer, and the heat insulation layer are located on the outer side of the refractory layer in sequence.

[0006] The refractory layer includes a refractory brick layer that can withstand the high temperatures generated by combustion in the incinerator. The refractory brick layer is composed of multiple refractory bricks spliced ​​end to end, with each pair of adjacent refractory bricks able to be connected together. Each refractory brick includes a main body, which is a fireproof main structure, and splicing pieces set at both ends of the main body. The two splicing pieces are used to connect two refractory bricks together. Both splicing pieces are L-shaped structures and are centrally symmetrically arranged along the axis of the main body. A splicing groove is formed between each splicing piece and the end of the main body. One end of one of the splicing pieces on another refractory brick can be inserted into the splicing groove, thereby completing the splicing between the two refractory bricks. A gap is also left between the splicing piece and the splicing groove, which is reserved space for the expansion of the refractory brick.

[0007] The refractory layer also includes an anti-corrosion layer, which is located on the side of the refractory brick layer away from the heat insulation layer. The anti-corrosion layer can prevent some corrosive fumes from corroding the refractory bricks.

[0008] The refractory layer also includes an asphalt layer, which is located on the side of the anti-corrosion layer away from the refractory brick layer. The asphalt layer can prevent the flame from directly burning the anti-corrosion layer.

[0009] The support plate and multiple coils embedded in the support plate are used to transport water, which can cool the heat insulation layer.

[0010] A reinforcing layer is also provided on the outside of the insulation layer. The reinforcing layer consists of multiple positioning plates, which are located on the outermost side of the furnace wall and can provide support for the furnace wall.

[0011] Each refractory brick is equipped with multiple claws inside. Each claw includes a connecting rod. One end of the connecting rod extends out of the refractory brick and passes through the support plate and the insulation layer. The end of the connecting rod has a through hole. Corresponding to the through hole, there are multiple through rods on the positioning plate. The through rods have an L-shaped structure and can be inserted into the through hole. The connection between the claw and the positioning plate can further prevent the refractory brick layer from collapsing or tilting.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Refractory bricks consist of a main body and two splicing parts, which facilitates the connection between multiple refractory bricks. There are also gaps between the two refractory bricks as expansion joints, which can prevent the refractory bricks from cracking and breaking due to mutual compression after being heated and expanding.

[0014] 2. The claws inside the refractory brick can pass through the heat insulation layer, water cooling layer, heat insulation layer and reinforcement layer, thereby further enhancing the stability of the refractory brick layer and preventing the refractory brick layer from tilting and collapsing.

[0015] 3. A coil is installed on the water-cooled layer. The coil is used to transport water. The coil can not only reduce the temperature between the heat insulation layer and the heat insulation layer, but also exchange heat with the water in the coil. The water that has been heated can be used for heating.

[0016] Meanwhile, the coil can also be used for air circulation, meaning that the air that has undergone heat exchange can be used for combustion assistance, heating, or other purposes in the incinerator. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an incinerator wall according to the present invention;

[0018] Figure 2 This is a schematic diagram of the reinforcing layer of this utility model;

[0019] Figure 3 This utility model Figure 1 Schematic diagram of the structure at point A;

[0020] Figure 4This utility model Figure 2 A schematic diagram of the structure at point B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 101. Refractory brick layer; 102. Anti-corrosion layer; 103. Asphalt layer; 105. Main component; 106. Connecting component; 107. Connecting groove; 108. Claw; 109. Connecting rod; 110. Perforation;

[0023] 200. Thermal insulation layer;

[0024] 300. Water-cooled layer; 301. Support plate; 302. Coil;

[0025] 400. Insulation layer;

[0026] 500, Reinforcing layer; 501, Positioning plate; 502, Through rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0028] like Figure 1-4 As shown: It includes a refractory layer, a heat insulation layer 200, a water cooling layer 300, and a heat insulation layer 400; wherein the refractory layer is located on the innermost side of the furnace wall, and the heat insulation layer 200, the water cooling layer 300, and the heat insulation layer 400 are located on the outer side of the refractory layer in sequence.

[0029] The refractory layer can isolate the flames inside the incinerator, thereby preventing the flames from burning and damaging the heat insulation layer 200, etc. The refractory layer can also withstand high temperatures. The heat insulation layer 200 can retain the high temperature passing through the refractory layer, thereby reducing the amount of high temperature leakage to the outside of the furnace wall. The water-cooled layer 300, which is in contact with the heat insulation layer 200, can reduce the temperature of the heat insulation layer 200, thereby further reducing the diffusion of high temperature to the outside of the furnace wall. The heat insulation layer 400 can further block the high temperature, thereby further reducing the impact of the high temperature inside the incinerator on the outside environment.

[0030] The refractory layer includes a refractory brick layer 101, which is composed of multiple refractory bricks spliced ​​end to end. Each refractory brick includes a main body 105 and splicing parts 106 respectively provided at both ends of the main body 105. Both splicing parts 106 are L-shaped structures and are centrally symmetrically arranged along the axis of the main body 105. A splicing groove 107 is formed between each splicing part 106 and the end of the main body 105. When assembling the refractory brick layer 101, multiple refractory bricks can be arranged side by side, and the splicing parts 106 on each refractory brick are located in the splicing groove 107 at the end of the adjacent splicing parts 106, so that multiple refractory bricks can be connected end to end. When the splicing parts 106 are in the splicing groove 107, there is a gap between them and the splicing groove 107. This gap is the expansion joint, which can prevent the refractory bricks from cracking and breaking due to mutual compression after thermal expansion.

[0031] like Figure 1 As shown,

[0032] The refractory layer also includes an anti-corrosion layer 102, which is located on the side of the refractory brick layer 101 away from the heat insulation layer 200. When the waste is burned in the incinerator, some corrosive gases are produced. The anti-corrosion layer 102 is applied to the refractory brick layer 101, and the anti-corrosion layer 102 can prevent the corrosive gases from corroding the refractory bricks.

[0033] like Figure 1 As shown,

[0034] The refractory layer also includes an asphalt layer 103, which is located on the side of the anti-corrosion layer 102 away from the refractory brick layer 101. The asphalt layer 103 is laid on the anti-corrosion layer 102 to prevent the flame in the incinerator from directly burning the anti-corrosion layer 102, thereby preventing the anti-corrosion layer 102 from falling off directly after being heated.

[0035] like Figure 1 As shown,

[0036] The support plate 301 and the multiple coils 302 embedded on the support plate 301 provide support for the coils 302. The coils 302 are used to transport water. Thus, the coils 302 can not only reduce the temperature between the heat insulation layer 200 and the heat insulation layer 400, but also exchange heat with the water in the coils 302. The water that has undergone heat exchange can be used for heating.

[0037] Meanwhile, the coil 302 can also be used for air circulation, meaning that the air that has undergone heat exchange can be used for combustion assistance in the incinerator, heating, or other purposes.

[0038] like Figure 1 As shown,

[0039] A reinforcing layer 500 is provided on the outside of the insulation layer 400. The reinforcing layer 500 is composed of multiple positioning plates 501. The positioning plates 501 on the outside of the insulation layer 400 can reinforce the overall structure of the furnace wall, and the positioning plates 501 can also be used to decorate the outer surface of the furnace wall.

[0040] like Figure 1 As shown,

[0041] Each refractory brick is equipped with multiple claws 108 inside, arranged in a linear array inside the refractory brick. Each claw 108 includes a connecting rod 109, one end of which extends out of the refractory brick and passes through the support plate 301 and the insulation layer 400. The end of the connecting rod 109 has a vertical through hole 110. Corresponding to the through hole 110, the positioning plate 501 has multiple through rods 502. The through rods 502 have an L-shaped structure and can be inserted into the through holes 110 of the multiple connecting rods 109. Thus, the positioning plate 501 can reinforce the position of the refractory brick through the claws 108, thereby further reinforcing the position of the refractory brick layer 101 and preventing the refractory brick layer 101 from tilting and collapsing.

[0042] When constructing the furnace wall, first assemble the refractory brick layer 101, then install the heat insulation layer 200, the water cooling layer 300, and the heat insulation layer 400, and then install the reinforcement layer. When installing the reinforcement layer, insert the through rod 502 on the positioning plate 501 into the through holes 110 of the vertical connecting rods 109, then fill the space between the positioning plate 501 and the heat insulation layer 400 with foam core, then apply the anti-corrosion layer 102 to the refractory brick layer 101, and finally lay an asphalt layer 103 on the outside of the anti-corrosion layer 102.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A furnace wall structure for an incinerator, characterized in that: It includes a fire-resistant layer, a heat insulation layer (200), a water-cooling layer (300), and a heat insulation layer (400); The refractory layer is located on the innermost side of the furnace wall, and the heat insulation layer (200), water cooling layer (300), and heat insulation layer (400) are located on the outer side of the refractory layer in sequence. The refractory layer includes a refractory brick layer (101), which is composed of multiple refractory bricks spliced ​​together end to end. Each refractory brick includes a main body (105) and splicing parts (106) respectively provided at both ends of the main body (105). Both splicing parts (106) are L-shaped structures and are centrally symmetrically arranged along the axis of the main body (105). A splicing groove (107) is formed between each splicing part (106) and the end of the main body (105). One end of one of the splicing parts (106) on another refractory brick can be inserted into the splicing groove (107), and a gap is left between the splicing part (106) and the splicing groove (107).

2. The incinerator wall structure as described in claim 1, characterized in that: The refractory layer also includes an anti-corrosion layer (102), which is located on the side of the refractory brick layer (101) away from the heat insulation layer (200).

3. The incinerator wall structure as described in claim 2, characterized in that: The refractory layer also includes an asphalt layer (103), which is located on the side of the anti-corrosion layer (102) away from the refractory brick layer (101).

4. The incinerator wall structure as described in claim 1, characterized in that: The water-cooled layer (300) includes a support plate (301) and a plurality of coils (302) embedded in the support plate (301), wherein the coils (302) are used to transport water flow.

5. The incinerator wall structure as described in claim 4, characterized in that: The insulation layer (400) is further provided with a reinforcing layer (500) on the outside, and the reinforcing layer (500) is composed of multiple positioning plates (501).

6. The incinerator wall structure as described in claim 5, characterized in that: Each refractory brick is provided with multiple claws (108) inside. Each claw (108) includes a connecting rod (109). One end of the connecting rod (109) extends out of the refractory brick and passes through the support plate (301) and the insulation layer (400). The end of the connecting rod (109) is provided with a through hole (110). Corresponding to the through hole (110), multiple through rods (502) are provided on the positioning plate (501). The through rods (502) have an L-shaped structure and can be inserted into the through hole (110).

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