Oxygen-enriched glass furnace

Abstract

This application provides an oxygen-enriched glass kiln, relating to the field of kiln technology, comprising a kiln body, a preheating pipe, and an air inlet pipe. The kiln body is equipped with a burner nozzle. A flue gas pipe is connected between the kiln body and the preheating pipe. A flue gas outlet pipe is connected to the top of the preheating pipe, and a filter screen is fixedly installed inside the flue gas outlet pipe. An ash removal assembly is installed at the bottom of the preheating pipe. The air inlet pipe passes through the preheating pipe and is connected to the kiln body. A cleaning assembly for cleaning the outer wall of the air inlet pipe and the filter screen is installed inside the preheating pipe. This kiln can preheat the oxygen-enriched combustion flow using hot flue gas, thereby improving combustion efficiency and combustion temperature. Furthermore, it utilizes the residual heat in the hot flue gas, improving energy utilization efficiency. By incorporating the cleaning assembly and the ash removal assembly, the kiln can clean and discharge dust and impurities adhering to the outer wall of the air inlet pipe and the filter screen.

Description

Technical Field

[0001] This application relates to the field of kiln technology, and more specifically, to an oxygen-enriched glass kiln. Background Technology

[0002] Glass furnaces are essential melting devices in the glass manufacturing industry. To enhance fuel combustion efficiency, most glass furnaces currently employ oxygen-enriched combustion technology. This technology improves the combustion efficiency and completeness of combustible components by introducing oxygen into the combustion gas stream, ensuring combustion performance during glass production. However, existing oxygen-enriched glass furnaces face the following shortcomings in production: the oxygen is not sufficiently dried and preheated, resulting in a slightly insufficient effect on raising the furnace temperature after it enters the furnace. Summary of the Invention

[0003] The purpose of this application is to provide an oxygen-enriched glass furnace that can solve the following shortcomings of existing oxygen-enriched glass furnaces in production and application: the oxygen is not sufficiently dried and preheated, resulting in a slightly insufficient effect on raising the temperature inside the furnace after it enters the furnace.

[0004] This application provides an oxygen-enriched glass furnace, including a furnace body, a preheating pipe, and an air inlet pipe. The furnace body is equipped with a burner, and a flue pipe is provided between the furnace body and the preheating pipe. A flue pipe is connected to the top of the preheating pipe, and a filter screen is fixedly installed inside the flue pipe. An ash removal assembly is provided at the bottom of the preheating pipe. The air inlet pipe passes through the preheating pipe and is connected to the furnace body. A cleaning assembly for cleaning the outer wall of the air inlet pipe and the filter screen is provided inside the preheating pipe.

[0005] The cleaning assembly includes a first cleaning component, a second cleaning component, a screw, a screw sleeve, a slide rod, a slide sleeve, and a motor. The first cleaning component is sleeved on the outer wall of the air intake pipe. The second cleaning component is fixedly connected to the first cleaning component and is movable to fit against the filter screen. The screw is rotatably mounted inside the preheating pipe via a bearing. The motor drives the screw to rotate. The slide rod is fixedly mounted inside the preheating pipe. The screw sleeve is threaded onto the screw. The slide sleeve is slidably mounted on the slide rod. Both the screw sleeve and the slide sleeve are fixedly connected to the first cleaning component.

[0006] The ash discharge assembly includes an ash discharge pipe, a baffle, a cylinder, and a valve. The ash discharge pipe is connected to the bottom of the preheating pipe and is located below the filter screen. The baffle is hinged inside the ash discharge pipe. The cylinder is hinged between the lower end of the baffle and the inner wall of the ash discharge pipe. The valve is located at the bottom of the ash discharge pipe.

[0007] The intake end of the intake pipe is provided with a mixing component for mixing oxygen and fuel gas flow.

[0008] The air mixing assembly includes an air mixing box, a rotating fan blade, a first air supply pipe, and a second air supply pipe. The air mixing box is connected to the air inlet end of the air inlet pipe. The rotating fan blade is rotatably mounted inside the air mixing box via a bearing. The first air supply pipe and the second air supply pipe are both connected to the air mixing box, and the first air supply pipe and the second air supply pipe are axially symmetrically arranged above and below the rotating fan blade.

[0009] Both the first and second air supply pipes are equipped with flow meters and flow regulating valves.

[0010] Multiple branch pipes are provided to connect the air inlet pipe to the kiln body.

[0011] The beneficial effects of this utility model are:

[0012] This utility model provides an oxygen-enriched glass kiln. During operation, oxygen-enriched combustion gas enters the kiln body through the inlet pipe for combustion. The flue gas generated by the kiln body flows into the preheating pipe through the flue gas pipe. The hot flue gas heats the oxygen-enriched combustion gas in the inlet pipe that passes through the preheating pipe. The flue gas is then discharged from the outlet pipe. Dust and impurities in the flue gas are intercepted and purified by a filter screen. After prolonged use, dust and impurities accumulate on the outer wall of the inlet pipe and on the filter screen. These can be cleaned using a cleaning component, and the dust and impurities are discharged through an ash removal component. This kiln utilizes hot flue gas to preheat the oxygen-enriched combustion gas, thereby improving combustion efficiency and temperature. Furthermore, the residual heat in the hot flue gas improves energy utilization efficiency. The cleaning and ash removal components effectively remove and discharge dust and impurities adhering to the outer wall of the inlet pipe and on the filter screen, preventing dust accumulation from affecting the heating of the inlet pipe by the hot flue gas and preventing dust blockage of the filter screen from hindering the smooth flow of flue gas. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a sectional view of the overall main view structure in some embodiments of this application;

[0015] Figure 2This is a cross-sectional view of the main structure of the preheating pipe in some embodiments of this application;

[0016] Figure 3 This is a cross-sectional view of the preheating pipe side structure in some embodiments of this application;

[0017] Figure 4 This is a cross-sectional view of the side structure of the mixing chamber in some embodiments of this application.

[0018] The reference numerals in the attached figures are as follows:

[0019] 1. Kiln body; 11. Burner nozzle;

[0020] 2. Preheating pipe; 21. Smoke outlet pipe; 22. Filter screen;

[0021] 3. Air intake pipe;

[0022] 4. Flue pipe;

[0023] 5. Ash discharge assembly; 51. Ash discharge pipe; 52. Baffle; 53. Cylinder; 54. Valve;

[0024] 6. Cleaning assembly; 61. First cleaning component; 62. Second cleaning component; 63. Screw; 64. Screw sleeve; 65. Sliding rod; 66. Sliding sleeve; 67. Motor;

[0025] 7. Mixing assembly; 71. Mixing box; 72. Rotating fan blades; 73. First air supply pipe; 74. Second air supply pipe;

[0026] 8. Diverter pipe. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0032] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 application based on the specific circumstances.

[0033] like Figures 1 to 3 As shown in the figure, this application provides an oxygen-enriched glass furnace, including a furnace body 1, a preheating pipe 2, and an air inlet pipe 3. The furnace body 1 is provided with a burner 11. A flue pipe 4 is provided between the furnace body 1 and the preheating pipe 2. A flue pipe 21 is provided at the top of the preheating pipe 2. A filter screen 22 is fixedly provided inside the flue pipe 21. An ash removal component 5 is provided at the bottom of the preheating pipe 2. The air inlet pipe 3 passes through the preheating pipe 2 and is connected to the furnace body 1. A cleaning component 6 for cleaning the outer wall of the air inlet pipe 3 and the filter screen 22 is provided inside the preheating pipe 2.

[0034] During use, the oxygen-enriched combustion gas flow mixed with oxygen enters the kiln body 1 through the air inlet pipe 3 for combustion. The flue gas generated by the kiln body 1 is passed into the preheating pipe 2 through the flue gas pipe 4. The hot flue gas heats the oxygen-enriched combustion gas flow in the air inlet pipe 3 that passes through the preheating pipe 2. Then the flue gas is discharged from the flue gas outlet pipe 21. The dust and impurities in the flue gas are intercepted and purified by the filter screen 22. After long-term use, dust and impurities will be attached to the outer wall of the air inlet pipe 3 and the filter screen 22. The outer wall of the air inlet pipe 3 and the filter screen 22 can be cleaned by the cleaning component 6, and the dust and impurities are discharged by the ash discharge component 5.

[0035] This kiln can preheat the oxygen-enriched combustion flow using hot flue gas, thereby improving combustion efficiency and combustion temperature. Moreover, it utilizes the residual heat in the hot flue gas to improve energy utilization efficiency. By setting up a cleaning component 6 and an ash removal component 5, the kiln can clean and discharge the dust and impurities attached to the outer wall of the air inlet pipe 3 and the filter screen 22, preventing dust and impurities from accumulating on the air inlet pipe 3 and affecting the heating of the air inlet pipe 3 by the hot flue gas, and preventing dust and impurities from clogging the filter screen 22 and affecting the smooth flow of flue gas.

[0036] like Figures 1 to 3 As shown, in this embodiment, the cleaning component 6 includes a first cleaning component 61, a second cleaning component 62, a screw 63, a screw sleeve 64, a sliding rod 65, a sliding sleeve 66, and a motor 67. The first cleaning component 61 is sleeved on the outer wall of the air intake pipe 3. The second cleaning component 62 is fixedly connected to the first cleaning component 61 and can be moved to fit against the filter screen 22. The screw 63 is rotatably mounted in the preheating pipe 2 through a bearing. The motor 67 drives the screw 63 to rotate. The sliding rod 65 is fixedly mounted in the preheating pipe 2. The screw sleeve 64 is threaded onto the screw 63. The sliding sleeve 66 is slidably mounted on the sliding rod 65. Both the screw sleeve 64 and the sliding sleeve 66 are fixedly connected to the first cleaning component 61.

[0037] Both the first cleaning component 61 and the second cleaning component 62 are cleaning brushes. In use, the motor 67 is turned on to drive the screw 63 to rotate, the screw 63 drives the screw sleeve 64 to move, the screw sleeve 64 drives the first cleaning component 61 to move, and the first cleaning component 61 drives the second cleaning component 62 to move. During the movement of the first cleaning component 61, it brushes and cleans the outer wall of the air intake pipe 3. When the second cleaning component 62 moves to fit against the filter screen 22, it brushes and cleans the filter screen 22. The sliding sleeve 66 and the sliding rod 65 work together to guide and limit the first cleaning component 61.

[0038] like Figure 1 and 2 As shown, in this embodiment, the ash discharge assembly 5 includes an ash discharge pipe 51, a baffle 52, a cylinder 53, and a valve 54. The ash discharge pipe 51 is connected to the bottom of the preheating pipe 2 and is located below the filter screen 22. The baffle 52 is hinged inside the ash discharge pipe 51. The cylinder 53 is hinged between the lower end of the baffle 52 and the inner wall of the ash discharge pipe 51. The valve 54 is located at the bottom of the ash discharge pipe 51.

[0039] When in use, the cylinder 53 is turned to rotate the baffle 52 to open the ash discharge pipe 51, and the dust and impurities fall into the ash discharge pipe 51. Then, the cylinder 53 is turned to rotate the baffle 52 to close the ash discharge pipe 51. Then, the valve 54 is opened to discharge the dust and impurities. At this time, the baffle 52 seals the top of the ash discharge pipe 51 and blocks the flue gas, so that the operator can discharge the dust and impurities without stopping the machine, thus improving the convenience of use.

[0040] like Figure 2 and 4 As shown, in this embodiment, the air inlet end of the air inlet pipe 3 is provided with a mixing component 7 for mixing oxygen and fuel gas flow; by providing the mixing component 7, the kiln promotes the full mixing of oxygen and fuel gas flow, and the uniformly mixed oxygen-enriched combustion-supporting gas flow will improve the combustion completeness.

[0041] like Figure 2 and 4 As shown, in this embodiment, the air mixing assembly 7 includes an air mixing box 71, a rotating fan blade 72, a first air supply pipe 73, and a second air supply pipe 74. The air mixing box 71 is connected to the air inlet end of the air inlet pipe 3. The rotating fan blade 72 is rotatably mounted inside the air mixing box 71 via a bearing. The first air supply pipe 73 and the second air supply pipe 74 are both connected to the air mixing box 71, and the first air supply pipe 73 and the second air supply pipe 74 are axially symmetrically arranged on the upper and lower sides of the rotating fan blade 72.

[0042] In use, oxygen and fuel gas flow are sent into the mixing box 71 from the first gas supply pipe 73 and the second gas supply pipe 74, respectively. The gas flow entering the mixing box 71 drives the rotating fan blade 72 to rotate, thereby driving the oxygen and fuel gas flow to mix quickly and evenly. The mixed oxygen-enriched combustion gas flow enters the kiln body 1 through the air inlet pipe 3 for combustion.

[0043] In this embodiment, both the first gas supply pipe 73 and the second gas supply pipe 74 are equipped with flow meters and flow regulating valves; the flow meters and flow regulating valves allow operators to precisely adjust the gas ratio according to actual needs, meeting the requirements of different production processes.

[0044] like Figure 1 As shown, in this embodiment, multiple diversion pipes 8 are connected between the air inlet pipe 3 and the kiln body 1; the multiple diversion pipes 8 ensure the uniform distribution of oxygen-enriched combustion flow inside the kiln body 1, thereby improving the combustion completeness.

[0045] Working principle: When the oxygen-enriched glass furnace provided in this application is in use, oxygen and fuel gas flow are respectively sent into the mixing box 71 from the first gas supply pipe 73 and the second gas supply pipe 74. The gas flow entering the mixing box 71 drives the rotating fan blade 72 to rotate, thereby driving the oxygen and fuel gas flow to mix quickly and evenly. The mixed oxygen-enriched combustion gas flow enters the furnace body 1 through the inlet pipe 3 for combustion. The flue gas generated by the furnace body 1 is passed into the preheating pipe 2 through the flue gas pipe 4. The hot flue gas heats the oxygen-enriched combustion gas flow in the inlet pipe 3 that passes through the preheating pipe 2. Then the flue gas is discharged from the flue gas outlet pipe 21. The dust and impurities in the flue gas are intercepted and purified by the filter screen 22.

[0046] After prolonged use, dust and impurities will accumulate on the outer wall of the intake pipe 3 and the filter screen 22. Turning on the motor 67 drives the screw 63 to rotate, which in turn moves the screw sleeve 64. The screw sleeve 64 then moves the first cleaning component 61, which in turn moves the second cleaning component 62. During the movement of the first cleaning component 61, it brushes and cleans the outer wall of the intake pipe 3. When the second cleaning component 62 moves to contact the filter screen 22, it brushes and cleans the filter screen 22. Simultaneously, turning on the cylinder 53 rotates the baffle 52 to open the ash discharge pipe 51, allowing the dust and impurities to fall into it. Then, turning on the cylinder 53 rotates the baffle 52 to close the ash discharge pipe 51, and finally, opening the valve 54 allows the dust and impurities to be discharged.

[0047] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An oxygen-enriched glass furnace, characterized in that: The furnace includes a kiln body (1), a preheating pipe (2), and an air inlet pipe (3). The kiln body (1) is equipped with a burner (11). A flue gas pipe (4) is provided between the kiln body (1) and the preheating pipe (2). A flue gas outlet pipe (21) is connected to the top of the preheating pipe (2). A filter screen (22) is fixedly installed inside the flue gas outlet pipe (21). An ash removal assembly (5) is provided at the bottom of the preheating pipe (2). The air inlet pipe (3) passes through the preheating pipe (2) and is connected to the kiln body (1). A cleaning assembly (6) for cleaning the outer wall of the air inlet pipe (3) and the filter screen (22) is provided inside the preheating pipe (2).

2. The oxygen-enriched glass furnace according to claim 1, characterized in that: The cleaning assembly (6) includes a first cleaning component (61), a second cleaning component (62), a screw (63), a screw sleeve (64), a slide rod (65), a slide sleeve (66), and a motor (67). The first cleaning component (61) is sleeved on the outer wall of the air intake pipe (3). The second cleaning component (62) is fixedly connected to the first cleaning component (61) and can be moved to fit against the filter screen (22). The screw (63) is rotatably mounted in the preheating pipe (2) through a bearing. The motor (67) drives the screw (63) to rotate. The slide rod (65) is fixedly mounted in the preheating pipe (2). The screw sleeve (64) is threaded onto the screw (63). The slide sleeve (66) is slidably mounted on the slide rod (65). Both the screw sleeve (64) and the slide sleeve (66) are fixedly connected to the first cleaning component (61).

3. The oxygen-enriched glass furnace according to claim 1, characterized in that: The ash discharge assembly (5) includes an ash discharge pipe (51), a baffle (52), a cylinder (53), and a valve (54). The ash discharge pipe (51) is connected to the bottom of the preheating pipe (2) and is located below the filter screen (22). The baffle (52) is hinged inside the ash discharge pipe (51). The cylinder (53) is hinged between the lower end of the baffle (52) and the inner wall of the ash discharge pipe (51). The valve (54) is located at the bottom of the ash discharge pipe (51).

4. The oxygen-enriched glass furnace according to claim 1, characterized in that: The intake end of the intake pipe (3) is provided with a mixing component (7) for mixing oxygen and fuel gas flow.

5. The oxygen-enriched glass furnace according to claim 4, characterized in that: The mixing assembly (7) includes a mixing box (71), a rotating fan blade (72), a first air supply pipe (73), and a second air supply pipe (74). The mixing box (71) is connected to the air inlet end of the air inlet pipe (3). The rotating fan blade (72) is rotatably mounted in the mixing box (71) via a bearing. The first air supply pipe (73) and the second air supply pipe (74) are both connected to the mixing box (71), and the first air supply pipe (73) and the second air supply pipe (74) are axially symmetrically arranged on the upper and lower sides of the rotating fan blade (72).

6. The oxygen-enriched glass furnace according to claim 5, characterized in that: A flow meter and a flow regulating valve are installed on both the first air supply pipe (73) and the second air supply pipe (74).

7. The oxygen-enriched glass furnace according to claim 4, characterized in that: Multiple branch pipes (8) are provided to connect the air inlet pipe (3) and the kiln body (1).

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