Ash collecting device for ash removal at flue opening of substrate glass kiln

Abstract

The utility model relates to the technical field of overflow method base plate glass manufacturing, and discloses an ash collecting device for ash removal of a flue opening of a base plate glass kiln, which comprises a flue ash chute, an ash collecting box and a kiln, the bottom end of the flue ash chute is connected with a high-silica cloth flexible connector through a flexible connection flange, the lower end of the high-silica cloth flexible connector communicates with the top end of an ash collecting box through a flexible connection hose clamp, and an ash box side opening cover plate door is installed on the surface of the ash collecting box. Three locking and clamping sleeves are connected between the slag box side-opening cover plate door and the ash collecting box, grating water inlet holes are formed in the inner wall of the ash collecting box, and a water drainage hole in the bottom of the ash collecting box is communicated with a cooling water drainage pipe. The device is convenient to operate, furnace pressure fluctuation is reduced, ash flying dust is reduced, and personnel scalding is reduced; and the tank furnace process, the tank furnace environment and the personnel safety are ensured to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of overflow method substrate glass manufacturing, in particular to an ash collection device for cleaning the flue port of a substrate glass kiln. Background Art

[0002] As we all know, the stability of the furnace pressure of the overflow substrate glass kiln is related to the stability of the atmosphere and temperature in the furnace, affects the clarification and energy consumption of the pool furnace, and is crucial to the stability of the melting process and quality. In addition, the furnace pressure will also affect the stability of the liquid level, the temperature and flow control of the channel, and thus affect the molding process. There are many factors that affect the furnace pressure, and the most common factor is the ash accumulation and blockage of the kiln flue. In the daily operation of the kiln, water vapor and CO2 waste gas will be generated when natural gas is burned, volatiles will be generated when glass is melted, and dust will be generated when the mixture is put in. Therefore, the high-temperature exhaust gas in the furnace carries the dust particles and volatiles of the mixture into the flue, and deposits and adheres to the inner wall of the flue, gradually accumulating to form ash slag that accumulates into blocks, reducing the effective cross-section of the flue exhaust, and when it reaches a certain level, it will affect the control of the furnace pressure. Therefore, it is necessary to regularly observe the accumulation of ash slag at the flue mouth and inside the flue. If it is found that there is a lot of accumulation, which affects the control of the flue temperature and furnace pressure, the flue cleaning operation should be carried out as soon as possible to remove the accumulation in time.

[0003] When the existing pool furnace flue ash collection device is installed with the kiln, the high-temperature exhaust gas inside the kiln carries the dust and volatiles of the mixture into the box of the flue outlet assembly through the flue outlet located on the front wall, and then enters the indoor flue and flue gas treatment system through the vertical flue, and finally is discharged to the outdoor chimney. In reality, the inner wall of the flue outlet is prone to form a viscous paste-like glassy coke (glass nodule), and the inner wall of the flue outlet assembly and the vertical flue is prone to ash agglomeration, so it needs to be cleaned regularly. During cleaning, it is necessary to open the flue outlet cleaning cover door, and use special cleaning tools to clean the flue ash and glass coke. The ash passes through the flue ash chute with a gate valve at the bottom of the flue outlet assembly box and falls into the ash collection bucket. The above existing structure has three obvious disadvantages: 1. When the gate valve on the flue ash chute is opened, a large amount of cold air will enter the flue through the chute, and the furnace pressure will fluctuate greatly during the opening and closing of the gate valve; 2. When the ash falls into the ash collection bucket, a large amount of dust will be generated, polluting the environment of the pool furnace area. In the long run, dust deposition will affect the insulation between the steel structure of the pool furnace and the insulation between the furnace body and the ground; 3. It is inconvenient to operate. Therefore, it is necessary to improve and optimize the relevant structures of the existing flue ash collection. Utility Model Content

[0004] In order to solve the technical problems raised in the above background technology, the utility model provides an ash collection device for cleaning the flue port of a substrate glass kiln.

[0005] The utility model is implemented by the following technical scheme: an ash collection device for cleaning the flue outlet of a substrate glass kiln, comprising a flue ash chute, an ash collection box and a kiln, wherein the kiln is provided with a front wall, a flue outlet is installed inside the front wall, the left side of the flue outlet is connected with a flue outlet assembly box, a flue outlet cleaning door is installed on the left side of the flue outlet assembly box, the top of the flue outlet assembly box is connected with a vertical flue, the bottom of the flue outlet assembly box is connected with the flue ash chute, and the middle of the flue ash chute is installed There is a gate valve, the bottom end of the flue ash chute is connected to a high-silica cloth flexible connection through a flexible connection flange, the lower end of the high-silica cloth flexible connection is connected to the top of the ash collecting box through a flexible connection throat clamp, a slag box side cover door is installed on the surface of the ash collecting box, three lock card sets are connected between the slag box side cover door and the ash collecting box, the surface of the ash collecting box is connected to a cooling water inlet, the inner wall of the ash collecting box is provided with a grille water inlet hole, and the drainage hole at the bottom of the ash collecting box is connected to a cooling water drainage pipe.

[0006] As a further improvement of the above solution, the high-silica cloth flexible connection is a high-silica glass fiber cloth.

[0007] As a further improvement of the above solution, the lower end of the high-silica cloth flexible connection is connected to the circular tube on the top of the ash collection box through a flexible connection throat hoop.

[0008] As a further improvement of the above solution, the ash collection box is welded together by a rectangular steel pipe frame and a steel plate, and the steel plate on the top of the ash collection box is connected by bolts.

[0009] As a further improvement of the above solution, a slag box handle is connected to the surface of the ash collection box.

[0010] As a further improvement of the above solution, casters are installed at equal intervals on the bottom of the ash collection box.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model is easy to operate, reduces furnace pressure fluctuations, reduces ash and slag dust, and reduces the occurrence of scalding of personnel; it ensures the safety of the pool furnace process, pool furnace environment and personnel to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation of the flue outlet and flue ash chute of the substrate glass kiln of the utility model

[0014] Figure 2 This is a structural schematic diagram of a flue ash chute and an ash collection box of the utility model;

[0015] Figure 3It is a structural schematic diagram of the ash collection box of the utility model.

[0016] Description of main symbols:

[0017] 1 flue ash chute, 2 ash collection box, 3 gate valve, 4 flexible connection flange, 5 high silica cloth flexible connection, 6 flexible connection throat clamp, 7 slag box side opening cover door, 8 lock card set, 9 cooling water inlet, 10 grille water inlet, 11 drain hole, 12 cooling water drain pipe, 13 slag box handle, 14 casters, 15 kiln, 16 front wall, 17 flue outlet, 18 flue outlet box assembly, 19 flue outlet cleaning door, 20 vertical flue. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0019] Embodiment 1:

[0020] Please combine Figure 1-3 The present embodiment is a ash collection device for cleaning the flue port of a substrate glass kiln, comprising a flue ash chute 1, an ash collection box 2 and a kiln 15. The kiln 15 is provided with a front wall 16, a flue port 17 is installed inside the front wall 16, the left side of the flue port 17 is connected to a flue port assembly box 18, a flue port cleaning door 19 is installed on the left side of the flue port assembly box 18, the top of the flue port assembly box 18 is connected to a vertical flue 20, the bottom of the flue port assembly box 18 is connected to the flue ash chute 1, and the natural gas combustion and mixed material decomposition in the kiln 15 are connected to the vertical flue 20. The generated flue gas enters the flue port assembly box 18 through the flue port 17 inside the front wall 16, is mixed with the cooling air input by the flue air supply system and cooled, and then enters the vertical flue 20, and is then discharged to the outdoor chimney through the indoor flue and the smoke exhaust treatment system. The volatile mixture carried by the flue gas often adheres to the inside of the flue port 17 and condenses into a paste-like glass nodule under high temperature. The volatile mixture carried by the flue gas condenses into block-like ash on the inner walls of the flue port assembly box 18 and the vertical flue 20. When accumulated to a certain extent, the flue port cleaning door 19 needs to be opened for cleaning.

[0021] A gate valve 3 is installed in the middle of the flue ash chute 1, and the bottom end of the flue ash chute 1 is connected to a high-silica cloth soft connection 5 through a soft connection flange 4. The high-silica cloth soft connection 5 is a high-silica glass fiber cloth. The high-silica glass fiber cloth has a temperature resistance of ≥800°C to ensure that it is not burned through by the glass red material in the ash, and the insulation value is ≥20 megohms to ensure the insulation of the flue mouth steel structure. The lower end of the high-silica cloth soft connection 5 is connected to the top of the ash collection box 2 through a soft connection throat hoop 6, and the lower end of the high-silica cloth soft connection 5 is connected to the round tube on the top of the ash collection box 2 through the soft connection throat hoop 6. When in use, the upper end of the high-silica cloth soft connection 5 is fixed, and the lower end is connected or disconnected as needed.

[0022] A slag box side cover door 7 is installed on the surface of the ash collecting box 2. The slag box side cover door 7 is convenient for emptying the ash in the ash collecting box 2. Card grooves are designed around the slag box side cover door 7 to limit it and ensure appropriate movable clearance, and three lock card sets 8 are used to fix and tighten it to ensure sealing. Three lock card sets 8 are connected between the slag box side cover door 7 and the ash collecting box 2. The ash collecting box 2 is welded by a rectangular steel pipe frame and a steel plate. The steel plate on the top of the ash collecting box 2 is bolted. The specification of the rectangular steel pipe is 50*50*2.5mm, the thickness of the steel plate is preferably 3mm, and the material is SUS304. The surface of the ash collecting box 2 is connected with a cooling water inlet 9, the inner wall of the ash collecting box 2 is provided with a grille water inlet hole 10, and the drainage hole 11 at the bottom of the ash collecting box 2 is connected with a cooling water drainage pipe 12.

[0023] The ash collection box 2 is divided into two layers by a partition, the lower layer stores water, and the upper layer stores slag. The net height of the water storage layer is preferably 100mm, and the internal full welding is required to meet the technical requirements of watertightness under normal pressure. The cooling water in the water storage layer enters through the cooling water inlet 9 and the grid water inlet 10, and is discharged through the drainage hole 11 of the bottom plate and the cooling water drainage pipe 12. A DN20 ball valve is installed at the outlet of the cooling water drainage pipe 12 to control drainage. The purpose of designing the water storage layer is to prevent the glass red material in the ash from burning the steel plate or causing the steel plate to deform, and to prevent the ash collection box 2 from being overheated and scalding the operator. The upper and lower layers are completely separated to achieve dry and wet separation of ash and cooling water.

[0024] The implementation principle of an ash collection device for cleaning the flue outlet of a substrate glass kiln in an embodiment of the present application is as follows: the flue ash chute 1 is connected to the bottom end of the flue outlet assembly box, and the cleaned ash and glass red material are discharged into the ash collection box 2 through the flue ash chute 1 at the bottom of the flue outlet assembly box, and cooling water is added through the cooling water addition port 9. The cooling water enters the lower layer of the ash collection box 2 through the grille water inlet hole 10 to cool the ash, and the cooling water can be discharged through the cooling water drain pipe 12.

[0025] Embodiment 2:

[0026] Based on Example 1, the present embodiment is further improved in that: a slag box handle 13 is connected to the surface of the ash collecting box 2, casters 14 are installed at equal intervals on the bottom of the ash collecting box 2, the slag box handle 13 and the cooling water drain pipe 12 are preferably made of DN20 round pipes, which are welded to the ash collecting box 2, and the casters 17 are universal casters with foot brakes, the wheel diameter is preferably φ120mm, and the material is SUS304.

[0027] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An ash collection device for cleaning the flue port of a substrate glass kiln, characterized in that: The invention comprises a flue ash chute (1), an ash collection box (2) and a kiln (15); the kiln (15) is provided with a front wall (16); a flue port (17) is installed inside the front wall (16); the left side of the flue port (17) is connected to a flue port assembly box (18); the left side of the flue port assembly box (18) is installed with a flue port cleaning door (19); the top of the flue port assembly box (18) is connected to a vertical flue (20); and the bottom of the flue port assembly box (18) is connected to the flue ash chute (1); A gate valve (3) is installed in the middle of the flue ash chute (1); the bottom end of the flue ash chute (1) is connected to a high-silica cloth flexible connection (5) via a flexible connection flange (4); the lower end of the high-silica cloth flexible connection (5) is connected to the top of the ash collection box (2) via a flexible connection throat hoop (6); The surface of the ash collection box (2) is provided with a slag box side opening cover door (7), three lock card sets (8) are connected between the slag box side opening cover door (7) and the ash collection box (2), the surface of the ash collection box (2) is connected with a cooling water inlet (9), the inner wall of the ash collection box (2) is provided with a grille water inlet hole (10), and the drainage hole (11) at the bottom of the ash collection box (2) is connected with a cooling water drainage pipe (12).

2. The ash collection device for cleaning the flue port of a substrate glass furnace according to claim 1, characterized in that: The high-silica cloth flexible connection (5) is high-silica glass fiber cloth.

3. The ash collection device for cleaning the flue outlet of a substrate glass furnace according to claim 1, characterized in that: The lower end of the high-silica cloth flexible connection (5) is connected to the circular tube at the top of the ash collection box (2) through a flexible connection throat hoop (6).

4. The ash collection device for cleaning the flue outlet of a substrate glass furnace according to claim 1, characterized in that: The ash collection box (2) is formed by welding a rectangular steel pipe frame and a steel plate, and the steel plate on the top of the ash collection box (2) is connected by bolts.

5. The ash collection device for cleaning the flue outlet of a substrate glass furnace according to claim 1, characterized in that: A slag box handle (13) is connected to the surface of the ash collection box (2).

6. The ash collection device for cleaning the flue outlet of a substrate glass furnace according to claim 1, characterized in that: Casters (14) are installed at equal intervals on the bottom of the ash collection box (2).

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