Furnace flue inner wall dust deposition position controllable and flue gas temperature control device

Abstract

The utility model discloses a kiln flue inner wall dust deposition position controllable and flue gas temperature control device, and relates to the technical field of glass manufacturing. The device comprises a tank furnace, the tank furnace is connected with a flue, one end, far away from the tank furnace, of the flue is connected with treatment equipment, the flue is detachably connected with a cooling assembly, and the cooling assembly comprises a water cooling pipe. According to the device, the detachable cooling assembly is installed in the middle of the flue, the water cooling pipe is installed on the outer side of the inner smoke pipe in the middle of the flue, the lifting handle is installed on the water cooling pipe, and meanwhile the water cooling pipe and the flue are assembled through the smoke pipe bearing bases on the two sides, so that waste gas generated during melting of glass raw materials can be effectively cooled; the service life of the treatment equipment is prolonged, particles in the waste gas are deposited at the inner smoke pipe, meanwhile, the low-temperature environment is beneficial to further deposition of the waste gas particles, the deposition rate is increased, the convenience of cleaning sediments is improved, meanwhile, high-temperature environment operation is avoided, and the treatment comfort is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass manufacturing, and in particular relates to a device for controlling the dust deposition position on the inner wall of a kiln flue and a flue gas temperature control device. Background Art

[0002] TFT (Thin Film Field Effect Transistor) glass is a glass substrate specially used for making thin film transistor liquid crystal displays. It is a type of active matrix liquid crystal display. This display technology can actively control each independent pixel on the screen, thereby greatly improving the response time. During the production process, the glass kiln melts the chemical raw materials through combustion. At this time, a large amount of combustion exhaust gas will be generated in the kiln. These exhaust gases are discharged after being treated by the flue and the "three wastes" treatment equipment at the back of the flue.

[0003] During production, the existing glass is directly connected to the processing equipment through a pipeline after being heat treated in a pool furnace, without being pre-treated in the intermediate pipeline part.

[0004] The shortcomings of this waste gas treatment method are: first, the temperature of the flue gas in the flue cools down naturally during the discharge process. When the flue gas reaches the nitrogen removal treatment equipment, the flue gas temperature often reaches the nitrogen oxide treatment control limit, which increases the burden on the equipment; second, during the movement of the flue gas in the flue, the dust in the flue gas is continuously deposited in the flue. When these deposits are manually cleaned in the later stage, the working surface covers the entire front half of the flue, which increases the workload and working time, and reduces the production efficiency of glass.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] The purpose of the utility model is to provide a device for controlling the dust deposition position on the inner wall of a kiln flue and controlling the flue gas temperature. The technical problems to be solved are as follows: In the existing TFT glass production process, when the gas in the flue is treated, the flue gas temperature is high and it is inconvenient to process later.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] The dust deposition position on the inner wall of a kiln flue is controllable and the flue gas temperature control device comprises a pool furnace, the pool furnace is connected to a flue, the end of the flue away from the pool furnace is connected to a processing device, the flue is detachably connected to a cooling component, the cooling component is used to conveniently clean dust particle deposits in the flue gas; the cooling component comprises a water cooling pipe, and the water cooling pipe is used to reduce the flue gas temperature.

[0009] As a further solution of the utility model: the cooling component is installed in the middle of the flue.

[0010] As a further solution of the utility model: the cooling component also includes two smoke pipe receiving seats installed on both sides of the middle of the flue, the smoke pipe receiving seats are connected by a bottom receiving seat and a top receiving seat, and the bottom receiving seat and the top receiving seat are fixed by bolts.

[0011] As a further solution of the utility model: the water cooling pipe is installed between the two smoke pipe receiving seats, the two ends of the water cooling pipe are respectively connected to the adjacent sides of the smoke duct, the two ends of the water cooling pipe are respectively provided with a water inlet pipe and a water outlet pipe, and an inner smoke pipe is installed on the inside of the water cooling pipe to improve safety in use.

[0012] As a further solution of the utility model: a handle is installed on the top end of the water-cooling tube, and a coating material layer is arranged on the outside of the water-cooling tube.

[0013] Beneficial effects of the utility model:

[0014] 1. By installing a detachable cooling component in the middle of the existing flue, installing a water cooling pipe on the outside of the inner flue in the middle of the flue, installing a handle on the water cooling pipe, and assembling the water cooling pipe and the flue with the help of the flue pipe receiving seats on both sides, the waste gas generated when the glass raw materials are melted can be effectively cooled, so that the waste gas flow can be kept at a low temperature when it reaches the processing equipment, which is convenient for the processing equipment to process, avoids the impact of high-temperature airflow on the processing equipment, and extends the service life of the processing equipment;

[0015] 2. By installing a cooling component at the exhaust gas particle deposition point in the middle of the flue, the particles in the exhaust gas are deposited in the inner smoke pipe. At the same time, the low temperature environment is conducive to the further deposition of the exhaust gas particles. While increasing the deposition rate, it also allows the staff to easily clean the sediment in the flue after removing the cooling component. At the same time, since the cooling component is detachable, the staff can transfer the cleaning space to avoid working in a high temperature environment and improve the processing comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 Partial cross-sectional view at AA in the middle;

[0019] Figure 3 This is the existing flue gas duct connection diagram.

[0020] In the figure: 1. pool furnace; 2. flue; 3. processing equipment; 4. smoke pipe receiving seat; 5. covering material layer; 6. water cooling pipe; 7. handle; 8. inner smoke pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 3 As shown, the existing pool furnace 1 for TFT glass raw material processing will generate a large amount of combustion waste gas during the raw material melting process. This part of the waste gas is directly introduced into the processing equipment 3 through the flue 2. Since the molten raw material generates high temperature, the temperature of the flue gas transmitted to the processing equipment 3 often reaches the control limit of nitrogen oxide processing, which increases the processing burden of the processing equipment 3 and also affects its service life; at the same time, since the flue gas contains molten particles, these particles pass through the front half of the flue 2 at a relatively high initial velocity, and are subsequently deposited in the flue 2 due to the self-weight effect. There are fewer heavier particles at the end of the flue 2 near the equipment, so the particles in the flue gas are deposited in the middle position of the flue 2 in a quasi-normal distribution. This part of the sediment is relatively difficult to clean because the flue 2 is an integrated structure.

[0023] like Figure 1 to Figure 2 As shown, the dust deposition position on the inner wall of the kiln flue is controllable and the flue gas temperature control device comprises a pool furnace 1, the pool furnace 1 is connected to the flue 2, the end of the flue 2 away from the pool furnace 1 is connected to the processing equipment 3, the middle part of the flue 2 is detachably connected to the cooling component, the cooling component is used for conveniently cleaning the dust particle deposits in the flue gas, the cooling component comprises a water cooling pipe 6, a coating material layer 5 is arranged on the outside of the water cooling pipe 6, and the water cooling pipe 6 is used to reduce the flue gas temperature.

[0024] As can be seen from the foregoing, since most of the particles in the flue gas are deposited in the middle of the flue 2, the cooling component is installed in the middle of the flue 2. The cooling component also includes two smoke pipe receiving seats 4 installed on both sides of the middle of the flue 2. Specifically, the smoke pipe receiving seat 4 is connected by a bottom receiving seat and a top receiving seat, and is fastened by bolts. The water cooling pipe 6 is installed between the two smoke pipe receiving seats 4, and the two ends of the water cooling pipe 6 are respectively connected to the adjacent sides of the flue 2, and the connection point is located on the inner side of the smoke pipe receiving seat 4. At the same time, the water cooling pipe 6 is provided with a water inlet pipe and a water outlet pipe at both ends (see Figure 1 ) for water cooling, an inner smoke pipe 8 is installed inside the water cooling pipe 6, and the inner smoke pipe 8 is used to transmit the exhaust gas generated by melting the TFT glass raw materials, a handle 7 is installed on the top of the water cooling pipe 6, and a flexible coating material layer 5 is coated on the outside of the water cooling pipe 6 to improve the safety of use.

[0025] The working principle of the utility model is as follows: when the exhaust gas generated in the pool furnace 1 passes through the cooling component, the water-cooling pipe 6 set on the outer side of the inner smoke pipe 8 cools the exhaust gas by water, takes away part of the heat in the exhaust gas flow, so that the exhaust gas is lower than the high threshold of the treatment temperature after entering the treatment device 3, thereby achieving the purpose of protecting the treatment device 3. At the same time, since most of the exhaust gas particles flowing in the flue 2 are located in the middle of the flue 2, the thermal expansion effect of the cooled exhaust gas is reduced at this time, and the sedimentation rate will be further increased due to the influence of its own weight, so that more particles in the exhaust gas can be The sediment is deposited in the inner smoke pipe 8, and the inner smoke pipe 8 is detachably installed in the middle of the flue 2 through the smoke pipe receiving seat 4. The purpose of quickly processing the sediment can be achieved by removing the cooling component together, that is, the sediment processing efficiency is improved, and the production efficiency of TFT glass is indirectly improved; in addition, the detachable cooling component maintains the connection layout of the existing exhaust pipe during installation, and maintains the pressure atmosphere in the kiln unchanged. At the same time, when cleaning the sediment, the processing position of the staff can be separated from the high temperature environment by replacing the cooling component, which reduces the work intensity of the staff and improves the comfort.

[0026] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A device for controlling the dust deposition position on the inner wall of a kiln flue and controlling the flue gas temperature, comprising a tank furnace (1), the tank furnace (1) being connected to a flue (2), and the end of the flue (2) away from the tank furnace (1) being connected to a processing device (3), characterized in that: The flue (2) is detachably connected to a cooling component, and the cooling component is used to conveniently clean dust particle deposits in the flue gas; the cooling component includes a water cooling pipe (6), and the water cooling pipe (6) is used to reduce the flue gas temperature.

2. The device for controlling the dust deposition position on the inner wall of the kiln flue and controlling the flue gas temperature according to claim 1 is characterized in that: The cooling component is installed in the middle of the flue (2).

3. The device for controlling the dust deposition position on the inner wall of the kiln flue and controlling the flue gas temperature according to claim 1 is characterized in that: The cooling component also includes two smoke pipe receiving seats (4) installed on both sides of the middle of the smoke duct (2), the smoke pipe receiving seats (4) are connected by a bottom receiving seat and a top receiving seat, and the bottom receiving seat and the top receiving seat are fixed by bolts.

4. The device for controlling the dust deposition position on the inner wall of the kiln flue and controlling the flue gas temperature according to claim 3 is characterized in that: The water cooling pipe (6) is installed between the two smoke pipe receiving seats (4), and the two ends of the water cooling pipe (6) are respectively connected to the adjacent sides of the smoke duct (2). The two ends of the water cooling pipe (6) are respectively provided with a water inlet pipe and a water outlet pipe. An inner smoke pipe (8) is installed inside the water cooling pipe (6) to improve safety in use.

5. The device for controlling dust deposition position on the inner wall of a kiln flue and controlling flue gas temperature according to claim 1 is characterized in that: A handle (7) is installed at the top end of the water cooling pipe (6), and a coating material layer (5) is arranged on the outside of the water cooling pipe (6).

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