Air inlet mechanism of expansion furnace for producing microporous and porous glass beads

Abstract

The utility model provides an air inlet mechanism of an expansion furnace for producing microporous and porous vitrified micro-beads, which belongs to the technical field of vitrified micro-beads and comprises a working shell, a hot air tank, an air supply pipeline, a plurality of mixing pipes, a plurality of air inlet pipes and a plurality of air inlet pipes. The working shell is provided with a control cavity, a first opening and a plurality of mounting holes; the hot air tank is located below the working shell, and an installation space is formed between the hot air tank and the working shell. The air supply pipelines are arranged in the circumferential direction of the hot air tank, and the mixing pipes penetrate through the corresponding mounting holes and are fixedly connected with the working shell; the upper end of the air inlet pipe is connected with the mixing pipe, and the lower end is connected with the hot air tank; the upper end of the air inlet pipe is connected with the mixing pipe, and the lower end is connected with the air supply pipeline. According to the air inlet mechanism of the expansion furnace for producing the microporous and porous glass beads, provided by the utility model, combustion operation is converged in the working shell by virtue of the mixing pipe, so that the condition of resource waste is reduced; and the air inlet pipe and the air inlet pipe are integrally and intensively arranged.

Description

Technical Field

[0001] The utility model belongs to the technical field of vitrified microspheres, and more specifically relates to an air intake mechanism of an expansion furnace for producing microporous vitrified microspheres. Background Art

[0002] Vitrified microspheres are an inorganic glassy mineral material. Due to the surface vitrification that creates a certain particle strength, their physical and chemical properties are very stable, they are resistant to aging and weathering, and they possess excellent thermal insulation, fire resistance, and sound absorption properties. They are suitable for use as lightweight filler aggregates and as thermal insulation, fire prevention, sound absorption, and heat preservation materials in many fields. In the building materials industry, using vitrified microspheres as lightweight aggregates can improve the fluidity and self-resistance of mortar, reduce material shrinkage, improve the overall performance of the product, and reduce overall production costs. During the production of vitrified microspheres, the raw materials are added to an expansion furnace to complete the production operation; specifically, an igniter and air intake mechanism are installed at the bottom of the expansion furnace. Current air intake mechanisms are prone to flame spread during use, resulting in significant energy waste and a chaotic layout of multiple pipelines. Utility Model Content

[0003] The purpose of the utility model is to provide an air intake mechanism for an expansion furnace for producing microporous and porous vitrified microspheres, so as to solve the technical problems in the prior art that the air intake mechanism is prone to outward diffusion of flames during use, resulting in a large amount of energy waste and a relatively chaotic arrangement of multiple pipelines.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide an air intake mechanism for an expansion furnace for producing microporous vitrified microspheres, which is used to be installed on the expansion furnace, comprising:

[0005] A working shell is fixedly mounted on the lower end of the expansion furnace; a control chamber is provided inside the working shell, a first opening is provided at the upper end thereof and communicates with the interior of the expansion furnace, and a plurality of mounting holes are provided at the lower end thereof and arranged around the first opening;

[0006] A hot air tank is used to be installed on the ground and is located below the working shell; an installation space is provided between the hot air tank and the working shell;

[0007] An air supply pipeline is installed outside the expansion furnace and arranged along the circumference of the hot air tank; the air supply pipeline is used to provide and transport combustible gas;

[0008] There are multiple mixing tubes, which correspond one to one with the multiple mounting holes; the mixing tubes are inserted into the corresponding mounting holes and fixedly connected to the working housing;

[0009] There are multiple air inlet pipes, with the upper end connected to the mixing pipe and the lower end connected to the hot air tank;

[0010] There are multiple air inlet pipes, and the upper ends are connected to the mixing pipe, and the lower ends are connected to the air supply pipe.

[0011] In a possible implementation, the working housing includes:

[0012] A sleeve, the upper end of which is the first opening; the upper end of the sleeve is provided with a flange for fixedly connecting to the upper end of the expansion furnace;

[0013] The bottom plate is fixedly mounted on the lower end of the sleeve; the plurality of mounting holes are arranged in a ring shape on the bottom plate.

[0014] In a possible implementation, the sleeve is provided with an observation port connected to the control cavity, and the observation port passes through the sleeve; the plurality of mounting holes are divided into two groups, and the two groups of mounting holes are symmetrically arranged on both sides of the observation port.

[0015] In a possible implementation, a second opening is provided on the bottom plate, and the plurality of mounting holes are arranged around the second opening.

[0016] In a possible implementation, the mounting holes are inclined holes, and a plurality of the mounting holes are evenly arranged in a ring shape.

[0017] In one possible implementation, a plurality of fixing plates are provided at the lower end of the working shell, the fixing plates are arranged vertically, and long holes are provided on the fixing plates; a connecting rod and a locking piece for fixing the connecting rod to the fixing plate are provided on the outer surface of the mixing tube.

[0018] In a possible implementation, the elongated hole is an arc-shaped hole segment, and the center of the arc-shaped hole segment is located at the connection between the mixing tube and the working shell.

[0019] In a possible implementation, the connecting rod is provided with an external threaded section, and the locking member is a locking nut.

[0020] In one possible implementation, the air inlet pipe includes a flexible pipe section and connecting pipe sections installed at both ends of the flexible pipe section, and the two connecting pipe sections on the air inlet pipe are respectively connected to the mixing pipe and the hot air tank; the air intake pipe includes a flexible pipe section and connecting pipe sections installed at both ends of the flexible pipe section, and the two connecting pipe sections on the air intake pipe are respectively connected to the mixing pipe and the air supply pipe.

[0021] In one possible implementation, a connecting hole is provided on the outer surface of the mixing tube, the upper end of the air inlet pipe is connected to the connecting hole and is fixedly connected to the mixing tube; the lower end of the mixing tube and the upper end of the air inlet pipe are both provided with connecting flanges, and the air inlet pipe is connected to the lower end of the mixing tube.

[0022] The beneficial effect of the air intake mechanism for the expansion furnace for producing microporous and porous vitrified microbeads provided by the utility model is that: compared with the existing technology, the air intake mechanism for the expansion furnace for producing microporous and porous vitrified microbeads provided by the utility model, when working, the working shell is fixedly installed at the bottom of the expansion furnace, and the first opening at the upper end of the working shell is connected to the interior of the expansion furnace, and a plurality of mixing tubes are inserted from the outside to the inside into the interior of the working shell to form a convergent state; a hot air tank and an air supply pipe are arranged on one side of the expansion furnace, and the air intake pipe and the air intake pipe are respectively connected to the mixing pipe, the hot air in the hot air tank is transported to the mixing pipe through the air intake pipe, and the combustible gas in the air supply pipe is transported to the mixing pipe through the air intake pipe, and then ignited at the pipe mouth of the mixing pipe to generate greater heat energy to process the raw materials into vitrified microbeads; in this way, the combustion operation is converged inside the working shell with the help of the mixing pipe, thereby reducing the waste of resources; and the air intake pipe and the air intake pipe are respectively connected to the mixing pipe, so that the air intake pipe and the air intake pipe are arranged more integrally and centrally.

[0023] At the same time, the performance of the glass beads prepared in this way is good. The glass beads are white and their bulk density can reach 106Kg / m 3 The thermal conductivity of the glass microspheres is 0.041W / (m·k), the volume water absorption rate is 16%, the surface vitrified closed porosity rate is 95%, which is much higher than the standard requirement of 80%, and the volume floating rate is 91%. It can be seen that the performance of the above-mentioned glass microspheres fully meets the standard requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 A schematic diagram of the use of an air intake mechanism of an expansion furnace for producing microporous porous vitrified microspheres provided by an embodiment of the present utility model;

[0026] Figure 2 A front view of the working housing provided by an embodiment of the utility model;

[0027] Figure 3An axonometric view of a working housing provided in an embodiment of the present utility model;

[0028] Figure 4 A schematic diagram of the structure of the hot air tank and the air supply pipeline provided in an embodiment of the utility model;

[0029] Figure 5 A schematic diagram of the connection between the mixing pipe and the air intake pipe provided in an embodiment of the present utility model;

[0030] Figure 6 A schematic structural diagram of a flexible pipe section and a connecting pipe section provided in an embodiment of the present utility model.

[0031] Among them, the reference numerals in the figures are:

[0032] 1. Working shell; 11. Control chamber; 12. First opening; 13. Mounting hole; 14. Sleeve; 15. Flange; 16. Bottom plate; 17. Observation port; 18. Second opening; 2. Hot air tank; 21. Installation space; 3. Air supply pipe; 4. Mixing pipe; 41. Connecting rod; 42. Locking piece; 43. Connecting hole; 44. Connecting flange; 5. Air inlet pipe; 51. Flexible pipe section; 52. Connecting pipe section; 6. Air inlet pipe; 7. Fixing plate; 71. Long hole; 8. Expansion furnace. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] See also Figures 1 to 5 The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres provided by the present invention is now described. An air intake mechanism for an expansion furnace for producing microporous porous vitrified microspheres, comprising a working shell 1, a hot air tank 2, an air supply pipe 3, a mixing pipe 4, an air intake pipe 5 and an air intake pipe 6 for installation on an expansion furnace 8; the working shell 1 is used to be fixedly installed on the lower end of the expansion furnace 8; a control chamber 11 is provided inside the working shell 1, and a first opening 12 communicating with the interior of the expansion furnace 8 is provided at the upper end, and a plurality of mounting holes 13 arranged around the first opening 12 are provided at the lower end; the hot air tank 2 is used to be installed on the ground and is located below the working shell 1; the hot air tank 2 and the working shell 1 are connected to each other. An installation space 21 is provided between the shells 1; the air supply pipe 3 is used to be installed on the outside of the expansion furnace 8 and is arranged along the circumference of the hot air tank 2; the air supply pipe 3 is used to provide and transport combustible gas; there are multiple mixing tubes 4, and they correspond one to one to multiple installation holes 13; the mixing tubes 4 are passed through the corresponding installation holes 13 and are fixedly connected to the working shell 1; there are multiple air inlet pipes 5, and the upper end is connected to the mixing tube 4, and the lower end is connected to the hot air tank 2; there are multiple air inlet pipes 6, and the upper end is connected to the mixing tube 4, and the lower end is connected to the air supply pipe 3.

[0038] Compared with the prior art, the air intake mechanism of the expansion furnace for producing microporous and porous vitrified microspheres provided by the present invention is as follows: when working, the working shell 1 is fixedly installed at the bottom of the expansion furnace 8, and the first opening 12 at the upper end of the working shell 1 is connected to the interior of the expansion furnace 8, and a plurality of mixing tubes 4 are inserted from the outside to the inside into the working shell 1 to form a convergent state; a hot air tank 2 and an air supply pipe 3 are arranged on one side of the expansion furnace 8, and the air intake pipe 6 and the air intake pipe 5 are respectively connected to the mixing pipe 4, the hot air in the hot air tank 2 is transported to the mixing pipe 4 through the air intake pipe 5, and the combustible gas in the air supply pipe 3 is transported to the mixing pipe 4 through the air intake pipe 6, and then ignited at the pipe mouth of the mixing pipe 4 to generate greater heat energy to process the raw materials into vitrified microspheres; in this way, the combustion operation is converged inside the working shell 1 with the help of the mixing pipe 4, thereby reducing the waste of resources; and the air intake pipe 5 and the air intake pipe 6 are respectively connected to the mixing pipe 4, so that the air intake pipe 5 and the air intake pipe 6 are arranged more integrally and centrally.

[0039] See also Figures 1 to 3As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres provided by the present invention, the working shell 1 includes a sleeve 14 and a bottom plate 16; the upper end of the sleeve 14 is a first opening 12; the upper end of the sleeve 14 is provided with a flange 15 for fixedly connecting with the upper end of the expansion furnace 8; the bottom plate 16 is fixedly mounted on the lower end of the sleeve 14; a plurality of mounting holes 13 are arranged in a ring on the bottom plate 16; when installing the working shell 1, the flange 15 at the upper end of the sleeve 14 is aligned with the lower end surface of the expansion furnace 8 and fastened with bolts; the mounting holes 13 are mounted on the bottom plate 16 and arranged in a ring, and the mixing tube 4 is passed through the corresponding mounting holes 13 and fixedly connected to the bottom plate 16. With the help of the structure of the sleeve 14, the upper end of the sleeve 14 forms the first opening 12, so that the heat generated by the ignition of the combustible gas and the hot air can move upward accurately and reliably.

[0040] See also Figures 1 to 3 As a specific embodiment of the air intake mechanism for an expansion furnace used in the production of microporous vitrified microspheres provided by the present invention, a sleeve 14 is provided with an observation port 17 communicating with the control chamber 11. The observation port 17 extends through the sleeve 14. The plurality of mounting holes 13 are divided into two groups, and the two groups of mounting holes 13 are symmetrically arranged on either side of the observation port 17. The provision of the observation port 17 facilitates observation of the working conditions within the working housing 1 by the operator, and the observation ports 17 extend through the sleeve 14 to form two observation ports 17. The plurality of mounting holes 13 are divided into two groups, and the two groups of mounting holes 13 are located on either side of the observation port 17, so that the mixing tube 4 does not interfere with observation of the combustion conditions.

[0041] See also Figure 2 and Figure 3 As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous porous vitrified microbeads provided by the utility model, a second opening 18 is provided on the bottom plate 16, and multiple mounting holes 13 are arranged around the second opening 18; the second opening 18 is provided on the bottom plate 16 to connect the expansion furnace 8, the working shell 1 and the installation space 21, and some impurities or raw materials can pass through the second opening 18 and escape from the working shell 1 when falling.

[0042] See also Figures 1 to 3 As a specific embodiment of the air intake mechanism of the expansion furnace for the production of microporous and porous vitrified microspheres provided by the utility model, the mounting hole 13 is an inclined hole, and multiple mounting holes 13 are evenly arranged in a ring shape; the mounting holes 13 are set as inclined holes, so that the upper ends of the mounting holes 13 form a convergence state, so that the combustion of combustible gas and hot air makes the operation of the expansion furnace 8 more effective and efficient.

[0043] See also Figure 2As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous porous vitrified microbeads provided by the present invention, a plurality of fixing plates 7 are provided at the lower end of the working shell 1. The fixing plates 7 are arranged vertically and are provided with elongated holes 71. The outer surface of the mixing tube 4 is provided with a connecting rod 41 and a locking piece 42 for fixing the connecting rod 41 to the fixing plate 7. After the mixing tube 4 is inserted into the mounting hole 13, the mixing tube 4 is abutted against the mounting plate, and the connecting rod 41 on the mixing tube 4 is inserted into the elongated hole 71 of the fixing plate 7. The connecting rod 41 is then fixedly connected to the fixing plate 7 using the locking piece 42, thereby achieving a fixed connection between the mixing tube 4 and the working shell 1. With the help of the elongated hole 71, the installation angle of the mixing tube 4 can be changed to achieve a better subsequent combustion effect, while still ensuring that the connecting rod 41 is inserted into the elongated hole 71 and fixed using the locking piece 42.

[0044] See also Figure 2 and Figure 5 As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres provided by the utility model, the elongated hole 71 is an arcuate hole segment, and the center of the arcuate hole segment is located at the connection between the mixing tube 4 and the working shell 1; setting the elongated hole 71 as an arcuate hole segment increases the adjustment range of the mixing tube 4, thereby being able to more effectively and flexibly adjust the installation angle and working position of the mixing tube 4.

[0045] See also Figure 2 and Figure 5 As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres provided by the utility model, the connecting rod 41 is provided with an external thread section, and the locking piece 42 is a locking nut; preferably, the external thread section is provided on the outer surface of the connecting rod 41, and the locking piece 42 adopts a locking nut. Therefore, the connecting rod 41 is connected to the fixing plate 7 by a threaded connection, which is convenient and quick to operate and also easy to disassemble.

[0046] See also Figure 1 and Figure 6As a specific embodiment of the air intake mechanism for an expansion furnace used in the production of microporous vitrified microspheres provided by the present invention, the air inlet pipe 5 includes a flexible pipe section 51 and connecting pipe sections 52 installed at both ends of the flexible pipe section 51. The two connecting pipe sections 52 on the air inlet pipe 5 are respectively connected to the mixing pipe 4 and the hot air tank 2. The air inlet pipe 6 includes a flexible pipe section 51 and connecting pipe sections 52 installed at both ends of the flexible pipe section 51. The two connecting pipe sections 52 on the air inlet pipe 6 are respectively connected to the mixing pipe 4 and the air supply pipe 3. The connecting pipe sections 52 at the upper and lower ends of the air inlet pipe 5 are respectively connected to the mixing pipe 4 and the hot air tank 2. The flexible pipe section 51 between the two connecting pipe sections 52 can effectively absorb impact forces, etc., so that the entire air inlet pipe 5 is reliable and stable to install and use. At the same time, the flexible pipe section 51 also allows the entire air inlet pipe 5 to be installed conveniently and neatly according to on-site conditions. Similarly, the connecting pipe sections 52 at the upper and lower ends of the intake pipe 6 are connected to the mixing pipe 4 and the air supply pipe 3, respectively. The flexible pipe section 51 between the two connecting pipe sections 52 can effectively absorb impact forces, etc., so that the entire intake pipe 6 can be installed reliably and stably. At the same time, the flexible pipe section 51 also allows the entire intake pipe 6 to be installed conveniently and neatly according to the site conditions.

[0047] See also Figure 1 and Figure 5 As a specific embodiment of the air intake mechanism of the expansion furnace for producing microporous vitrified microspheres provided by the present invention, a connecting hole 43 is provided on the outer surface of the mixing tube 4, and the upper end of the air inlet pipe 5 is connected to the connecting hole 43 and fixedly connected to the mixing tube 4; the lower end of the mixing tube 4 and the upper end of the air inlet pipe 6 are both provided with connecting flanges 44, and the air inlet pipe 6 is connected to the lower end of the mixing tube 4; that is, the connecting hole 43 is pre-opened on the outer surface of the mixing tube 4, the upper end of the air inlet pipe 5 is connected to the connecting hole 43, and then the air inlet pipe 5 and the mixing tube 4 are fixedly connected together by welding or other methods. The connecting hole 43 is set as an inclined hole, and the upper end of the air inlet pipe 5 is an inclined surface. A connecting flange 44 is set at the upper end of the air inlet pipe 6, and the connecting flange 44 is connected to the lower end of the mixing tube 4 and fixedly connected to the mixing tube 4 by bolts.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air intake mechanism for an expansion furnace for producing microporous vitrified microspheres, which is used to be installed on an expansion furnace, characterized in that: include: A working shell is fixedly mounted on the lower end of the expansion furnace; a control chamber is provided inside the working shell, a first opening is provided at the upper end thereof and communicates with the interior of the expansion furnace, and a plurality of mounting holes are provided at the lower end thereof and arranged around the first opening; A hot air tank is used to be installed on the ground and is located below the working shell; an installation space is provided between the hot air tank and the working shell; An air supply pipeline is installed outside the expansion furnace and arranged along the circumference of the hot air tank; the air supply pipeline is used to provide and transport combustible gas; There are multiple mixing tubes, which correspond one to one with the multiple mounting holes; the mixing tubes are inserted into the corresponding mounting holes and fixedly connected to the working housing; There are multiple air inlet pipes, with the upper end connected to the mixing pipe and the lower end connected to the hot air tank; There are multiple air inlet pipes, and the upper ends are connected to the mixing pipe, and the lower ends are connected to the air supply pipe.

2. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 1, characterized in that: The working housing comprises: A sleeve, the upper end of which is the first opening; the upper end of the sleeve is provided with a flange for fixed connection with the upper end of the expansion furnace; The bottom plate is fixedly mounted on the lower end of the sleeve; the plurality of mounting holes are arranged in a ring shape on the bottom plate.

3. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 2, characterized in that: The sleeve is provided with an observation port connected to the control cavity, and the observation port passes through the sleeve; the plurality of mounting holes are divided into two groups, and the two groups of mounting holes are symmetrically arranged on both sides of the observation port.

4. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 2, characterized in that: A second opening is provided on the bottom plate, and a plurality of mounting holes are arranged around the second opening.

5. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 1, characterized in that: The mounting holes are inclined holes, and a plurality of the mounting holes are evenly arranged in a ring shape.

6. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 1, characterized in that: A plurality of fixing plates are provided at the lower end of the working shell, the fixing plates are arranged vertically, and long holes are provided on the fixing plates; a connecting rod and a locking piece for fixing the connecting rod to the fixing plate are provided on the outer surface of the mixing tube.

7. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 6, characterized in that: The elongated hole is an arc-shaped hole segment, and the center of the arc-shaped hole segment is located at the connection between the mixing tube and the working shell.

8. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 6, characterized in that: The connecting rod is provided with an external thread section, and the locking piece is a locking nut.

9. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 1, characterized in that: The air inlet pipe includes a flexible pipe section and connecting pipe sections installed at both ends of the flexible pipe section, and the two connecting pipe sections on the air inlet pipe are respectively connected to the mixing pipe and the hot air tank; the air inlet pipe includes a flexible pipe section and connecting pipe sections installed at both ends of the flexible pipe section, and the two connecting pipe sections on the air inlet pipe are respectively connected to the mixing pipe and the air supply pipe.

10. The air intake mechanism of the expansion furnace for producing microporous porous vitrified microspheres according to claim 1, characterized in that: A connecting hole is provided on the outer surface of the mixing tube, the upper end of the air inlet pipe is connected to the connecting hole and is fixedly connected to the mixing tube; the lower end of the mixing tube and the upper end of the air inlet pipe are both provided with connecting flanges, and the air inlet pipe is connected to the lower end of the mixing tube.

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