A front wall anti-flowing structure of a pool furnace

Abstract

The present application provides a kind of pool stove front wall prevents structure of flow, including breast wall structure;Breast wall structure is provided with flue opening, flue opening is provided with erosion prevention structure;Erosion prevention structure includes erosion prevention top bridge structure, erosion prevention side structure, prevents flow bottom structure;Erosion prevention top bridge structure is set in the top of flue opening, erosion prevention side structure is set in the two sides of flue opening;Prevents flow bottom structure and is set in the bottom of flue opening;Erosion prevention structure uses dense zirconium refractory brick;The two sides of breast wall structure are provided with flow guide groove, and flow guide groove is connected with the outlet of flue opening.It is used to solve the problem of high defective product rate, high kiln operation cost and influence kiln service life in prior art.

Description

Technical Field

[0001] This invention belongs to the field of glass production technology, specifically to a structure for preventing flow in the front wall of a furnace. Background Technology

[0002] In the design of liquid crystal kilns, the front wall of the kiln is generally made of mullite refractory material. However, due to the structural design of the front wall, the flue is located above the center of the front wall. Therefore, it is subject to long-term erosion by the hot air flow and chemical substances inside the kiln. The mullite bricks in the front wall are easily eroded, resulting in more stone accumulation during the production process, which seriously affects the product qualification rate and the service life of the kiln.

[0003] During long-term operation, the raw materials in the TFT LCD kiln release various chemical components into a reducing and oxidizing atmosphere after melting at high temperatures. This atmosphere is mainly composed of boron chemical molecules. The atmosphere is then expelled from the kiln by the exhaust fan to maintain the kiln pressure. However, due to the design and structural distribution of the kiln's front wall, the kiln breast wall and the front and rear walls are constructed using alumina mullite bricks. The flue inlet is located in the upper center of the front wall. Over time, the mullite bricks below the flue outlet are subjected to the scouring effect of the 1500°C hot airflow from the kiln, forming irregular grooves. This causes the chemical components released from the raw materials to remain in the grooves on the inner surface of the front wall and in the flue outlet, easily leading to stone formation and flue blockage. This affects the kiln pressure and process stability, and the eroded grooves reduce the thickness of the mullite bricks, shorten the kiln's lifespan, and increase operating costs.

[0004] Existing technologies suffer from problems such as high rates of defective products with stone formation, high kiln operating costs, and reduced kiln lifespan. Summary of the Invention

[0005] In order to solve the problems existing in the prior art, the present invention provides a flow prevention structure for the front wall of the furnace, which is used to solve the problems of high rate of defective products with stone accumulation, high operating cost of the furnace, and reduced service life of the furnace in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A flow prevention structure for the front wall of a furnace includes a breast wall structure;

[0008] The breast wall structure is provided with a flue opening, and the flue opening is provided with an anti-corrosion structure.

[0009] The anti-erosion structure includes an anti-erosion top bridging structure, an anti-erosion side structure, and an anti-flow bottom structure; the anti-erosion top bridging structure is located at the top of the flue opening, the anti-erosion side structures are located on both sides of the flue opening, and the anti-flow bottom structure is located at the bottom of the flue opening; the anti-erosion structure is made of dense zirconium refractory bricks.

[0010] The breast wall structure has flow channel channels on both sides, which are connected to the outlet of the flue.

[0011] Preferably, the flow channel is coated with platinum.

[0012] Preferably, the breast wall structure at the bottom of the flue opening is formed by stacking dense zirconium refractory bricks.

[0013] Preferably, the breast wall structure on both sides of the flue opening is formed by stacking mullite refractory bricks.

[0014] Preferably, feeding ports are provided on both sides of the bottom of the flue.

[0015] Preferably, the dense zirconium refractory bricks are formed by staggered stacking of each other.

[0016] Preferably, there are two flow guide channels, which are inclinedly arranged on both sides of the bottom of the flue opening.

[0017] Preferably, the outlet end of the anti-flow bottom structure is provided with a flow protrusion, the flow protrusion is trapezoidal in shape, and the inclination direction of the trapezoidal structure points to the flow guide channels on both sides.

[0018] Preferably, the top surface of the anti-flow bottom structure is inclined.

[0019] Preferably, the bottom of the breast wall structure is provided with a pool wall structure.

[0020] Compared with the prior art, the present invention has the following beneficial technical effects:

[0021] This invention provides a flow-proof structure for the front wall of a furnace. By replacing the mullite bricks below the flue inlet with dense zirconium bricks, the area eroded by long-term hot airflow is replaced with high-temperature and corrosion-resistant dense zirconium bricks, extending the furnace's service life and reducing operating costs. The use of dense zirconium refractory bricks as an anti-erosion structure prevents the impact of hot airflow from the flue inlet on the lifespan of the breast wall structure. Furthermore, the flow-proof channel guides the flow material to flow down in the early stages of its formation, reducing accumulation and minimizing localized brick erosion caused by accumulation, thus reducing the rate of defective products due to stone buildup; and stabilizing furnace pressure and process control. Attached Figure Description

[0022] Fig. 1 This is a schematic diagram of an anti-flow structure for the front wall of a furnace according to the present invention;

[0023] Fig. 2 This is a side view of a flow prevention structure for the front wall of a furnace according to the present invention;

[0024] Fig. 3 This is a schematic diagram of the arrangement of the dense zirconium refractory bricks of the present invention;

[0025] Fig. 4 This is a three-dimensional schematic diagram of an anti-flow structure for the front wall of a furnace according to the present invention;

[0026] In the attached diagram: 1 is the flue opening; 2 is the anti-corrosion top bridge structure; 3 is the anti-corrosion side structure; 4 is the anti-flow bottom structure; 5 is the breast wall structure; 6 is the flow guide channel; 7 is the pool wall structure; 8 is the mullite refractory brick; 9 is the dense zircon refractory brick; 10 is the feeding port; 11 is the flow boss. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0028] Example

[0029] like Figs. 1 to 4 As shown, the present invention provides a flow prevention structure for the front wall of a furnace, comprising a flue opening 1, an anti-erosion top bridge structure 2, an anti-erosion side structure 3, an anti-flow bottom structure 4, a breast wall structure 5, a flow guide channel 6, a furnace wall structure 7, mullite refractory bricks 8, dense zirconium refractory bricks 9, a feeding port 10, and a flow boss 11.

[0030] The flue opening 1 is located on the breast wall structure 5, and an anti-corrosion structure is provided on the outer circumference of the flue opening 1.

[0031] The anti-erosion structure includes an anti-erosion top bridge structure 2, an anti-erosion side structure 3, and an anti-flow bottom structure 4. The anti-erosion top bridge structure 2 is located at the top of the flue opening 1, and the anti-erosion side structure 3 is located on both sides of the flue opening 1. The anti-flow bottom structure 4 is located at the bottom of the flue opening 1. The anti-erosion structure is made of dense zirconium refractory bricks 9. Feed ports 10 are provided on both sides of the bottom of the flue opening 1. A pool wall structure 7 is provided at the bottom of the breast wall structure 5. This invention, by setting up an anti-erosion structure made of dense zirconium refractory bricks 9, avoids the impact of hot gas erosion from the flue opening 1 on the lifespan of the breast wall structure 5.

[0032] The breast wall structure 5 has flow guide channels 6 on both sides, which connect to the outlet of the flue vent 1. The top surface of the anti-flow bottom structure 4 is inclined, and the outlet end of the anti-flow bottom structure 4 is provided with a flow protrusion 11. The flow protrusion 11 has a trapezoidal structure, and the inclination direction of the trapezoidal structure points to the flow guide channels 6 on both sides. The flow guide channels 6 are covered with platinum. There are two flow guide channels 6, which are inclined on both sides of the bottom of the flue vent 1. By setting the trapezoidal flow protrusion 11, the flow material is facilitated to flow down the guide channel in the early stage of formation, reducing the accumulation of flow material and reducing the local brick erosion caused by accumulation. The flow protrusion 11 prevents the flow material from flowing into the molten glass in the furnace and forming stones.

[0033] The breast wall structure 5 at the bottom of the flue opening 1 is formed by stacking dense zircon refractory bricks 9, with adjacent layers of dense zircon refractory bricks 9 stacked in a staggered manner. The breast wall structures 5 on both sides of the flue opening 1 are formed by stacking mullite refractory bricks 8, with adjacent layers of mullite refractory bricks 8 stacked in a staggered manner.

[0034] This invention replaces the mullite bricks at the bottom of the flue with dense zirconium bricks. This replaces the areas where the mullite bricks at the bottom of the flue have been eroded by long-term hot airflow, extending the kiln's service life and reducing operating costs. By installing an anti-erosion structure made of dense zirconium refractory bricks 9, the impact of hot airflow from the flue 1 on the lifespan of the breast wall structure 5 is avoided. Furthermore, the flow channel 6 directs the flow material down in its early stages, reducing accumulation and minimizing localized brick erosion caused by accumulation, thus reducing the rate of defective products with brittle stones; and stabilizing furnace pressure and process control.

Claims

1. A flow-prevention structure for the front wall of a furnace, characterized in that, Including the breast wall structure (5); The breast wall structure (5) is provided with a flue opening (1), and the flue opening (1) is provided with an anti-corrosion structure; The anti-erosion structure includes an anti-erosion top bridge structure (2), an anti-erosion side structure (3), and an anti-flow bottom structure (4); the anti-erosion top bridge structure (2) is located at the top of the flue opening (1), and the anti-erosion side structure (3) is located on both sides of the flue opening (1); the anti-flow bottom structure (4) is located at the bottom of the flue opening (1), and the outlet end of the anti-flow bottom structure (4) is provided with a flow boss (11), the flow boss (11) is trapezoidal, and the inclination direction of the trapezoidal structure points to the flow guide grooves (6) on both sides; the anti-erosion structure is made of dense zirconium refractory bricks (9). The breast wall structure (5) is provided with two flow guide channels (6) on both sides. The flow guide channels (6) are inclined and set on both sides of the bottom of the flue opening (1). The flow guide channels (6) are connected to the outlet of the flue opening (1). When the flow material is formed, it flows out along the flow guide channels (6).

2. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The flow channel (6) is encased in platinum.

3. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The breast wall structure (5) at the bottom of the flue opening (1) is formed by stacking dense zircon refractory bricks (9).

4. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The breast wall structure (5) on both sides of the flue opening (1) is formed by stacking mullite refractory bricks (8).

5. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, Feed ports (10) are provided on both sides of the bottom of the flue (1).

6. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The dense zirconium refractory bricks (9) are formed by stacking them in a staggered manner.

7. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The top surface of the anti-flow bottom structure (4) is inclined.

8. The anti-flow structure for the front wall of a furnace according to claim 1, characterized in that, The bottom of the breast wall structure (5) is provided with a pool wall structure (7).

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