Fuel gas drying kiln for refractory material production

Abstract

The utility model discloses a fuel gas drying kiln for refractory material production. The fuel gas drying kiln comprises a kiln body, wherein the kiln body is provided with a preheating chamber, a drying chamber and a heat dissipation chamber; the number of the kiln door assemblies is four. The first heat exchange assembly comprises a smoke outlet pipe which is arranged on the kiln body and communicates with the drying chamber, an activated carbon adsorption box is arranged at the air outlet end of the smoke outlet pipe and communicates with a negative pressure fan, the air outlet end of the negative pressure fan is provided with a snake-shaped heat exchange pipe extending into the preheating chamber, and the kiln body is provided with an air outlet channel communicating with the preheating chamber. The utility model relates to the technical field of refractory material production, a kiln body is provided with a preheating chamber, a drying chamber and a heat dissipation chamber which are isolated through a kiln door assembly, when sintering is carried out, smoke with heat discharged by the drying chamber exchanges heat with the preheating chamber through a first heat exchange assembly, so that materials in the preheating chamber are preheated in advance, and the heat dissipation efficiency is improved. The drying efficiency of the fuel gas drying kiln is improved, meanwhile, waste heat generated by the kiln is fully utilized, and waste of heat energy is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of refractory material production, and specifically relates to a gas drying kiln for refractory material production. Background Art

[0002] Gas drying kiln refers to thermal equipment that uses gas to heat materials in industrial production to complete physical and chemical changes.

[0003] However, when the existing gas kiln is sintering, a large amount of heat will be discharged to the outside, and the waste heat generated by the kiln cannot be fully utilized, resulting in a waste of heat energy. Therefore, a gas drying kiln for refractory material production is provided. Utility Model Content

[0004] The utility model aims to provide a gas drying kiln for refractory material production, so as to solve the problem that a large amount of heat is discharged to the outside during sintering in the existing gas kiln, and the waste heat generated by the kiln cannot be fully utilized, resulting in waste of heat energy.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a gas-fired drying kiln for refractory material production, comprising:

[0006] The kiln body has a preheating chamber, a drying chamber and a heat dissipation chamber;

[0007] There are four kiln door assemblies, corresponding to the preheating chamber, drying chamber and heat dissipation chamber respectively;

[0008] A first heat exchange component is arranged on the kiln body and is used to preheat the refractory material in the preheating chamber;

[0009] The first heat exchange component includes a smoke outlet pipe which is arranged on the kiln body and connected to the drying chamber. An activated carbon adsorption box is provided at the gas outlet end of the smoke outlet pipe. A negative pressure fan is connected to the activated carbon adsorption box. A serpentine heat exchange pipe extending into the preheating chamber is provided at the gas outlet end of the negative pressure fan. An gas outlet channel connected to the preheating chamber is provided on the kiln body.

[0010] Preferably, it also includes a second heat exchange component;

[0011] The second heat exchange component includes an air inlet cavity arranged at the bottom of the heat dissipation chamber, a drying plate is provided on the inner side of the air inlet cavity, a plurality of evenly distributed air nozzles are provided on the top of the air inlet cavity, a fan connected to the air inlet cavity is provided on the outer side of the kiln body, and an insulation pipe connected to the preheating chamber is provided on the top of the heat dissipation chamber.

[0012] Preferably, two air outlet cavities are relatively arranged on the inner side of the preheating chamber, the air outlet cavities are connected to the insulation pipe, and air equalizing plates are arranged on the side walls of the two air outlet cavities close to each other.

[0013] Preferably, the kiln door assembly comprises a gantry frame arranged on the kiln body, the kiln door is slidably mounted on the gantry frame, the kiln door is insert-mounted on the kiln body, and the gantry frame is provided with a driving assembly for driving the kiln door to rise and fall.

[0014] Preferably, the driving assembly includes a driving motor arranged on the gantry, the driving end of the driving motor is provided with a bidirectional threaded rod, two sliding blocks are relatively provided on the bidirectional threaded rod, the bottom of the two sliding blocks are hinged with one end of a connecting rod, and the other end of the connecting rod is hingedly connected to the middle part of the kiln door.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model is a gas-fired drying kiln for producing refractory materials. When in use, the kiln body is provided with a preheating chamber, a drying chamber and a heat dissipation chamber, and the chambers are isolated by a kiln door assembly. When sintering is carried out, the hot smoke discharged from the drying chamber exchanges heat with the preheating chamber through the first heat exchange assembly, so that the material in the preheating chamber is preheated in advance, thereby improving the drying efficiency of the gas-fired drying kiln. At the same time, the waste heat generated by the kiln is fully utilized to avoid the waste of heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a left sectional structural schematic diagram of the utility model;

[0018] Figure 3 for Figure 1 A local enlarged structural schematic diagram;

[0019] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure at point B.

[0020] In the figure: 1. kiln body; 1-1. preheating chamber; 1-2. drying chamber; 1-3. heat dissipation chamber; 2. kiln door assembly; 2-1. gantry; 2-2. kiln door; 2-3. drive motor; 2-4. bidirectional threaded rod; 2-5. slider; 2-6. connecting rod; 3. first heat exchange assembly; 3-1. smoke outlet pipe; 3-2. negative pressure fan; 3-3. serpentine heat exchange pipe; 3-4. air outlet channel; 3-5. activated carbon adsorption box; 4. second heat exchange assembly; 4-1. air inlet chamber; 4-2. drying plate; 4-3. air nozzle; 4-4. fan; 4-5. insulation pipe; 4-6. air outlet chamber; 4-7. air distribution plate. 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] See also Figure 1-4 The utility model provides a technical solution: a gas drying kiln for refractory material production, comprising: a kiln body 1 having a preheating chamber 1-1, a drying chamber 1-2 and a heat dissipation chamber 1-3; four kiln door assemblies 2 are provided, which are respectively provided corresponding to the preheating chamber 1-1, the drying chamber 1-2 and the heat dissipation chamber 1-3; a first heat exchange assembly 3 is provided on the kiln body 1, and is used to preheat the refractory material in the preheating chamber 1-1; when in use, the kiln body 1 is provided with the preheating chamber 1-1, the drying chamber 1-2 and the heat dissipation chamber 1-3, and is isolated by the kiln door assembly 2. When sintering is carried out, the hot smoke discharged from the drying chamber 1-2 exchanges heat with the preheating chamber 1-1 through the first heat exchange assembly 3, so that the material in the preheating chamber 1-1 is preheated in advance, thereby improving the drying efficiency of the gas drying kiln. At the same time, the waste heat generated by the kiln is fully utilized to avoid the waste of heat energy.

[0023] Specifically, the first heat exchange component 3 includes a smoke outlet pipe 3-1 which is arranged on the kiln body 1 and connected to the drying chamber 1-2. An activated carbon adsorption box 3-5 is provided at the gas outlet end of the smoke outlet pipe 3-1. The activated carbon adsorption box 3-5 is connected to a negative pressure fan 3-2. A serpentine heat exchange tube 3-3 extending into the preheating chamber 1-1 is provided at the gas outlet end of the negative pressure fan 3-2. An gas outlet channel 3-4 connected to the preheating chamber 1-1 is provided on the kiln body 1. When in use, the negative pressure fan 3-2 is started to make the hot smoke discharged from the drying chamber 1-2 enter the activated carbon adsorption box 3-5 from the smoke outlet pipe 3-1 for filtration, and then enter the serpentine heat exchange tube 3-3 and be discharged. The preheating chamber 1-1 is preheated by the serpentine heat exchange tube 3-3, and the waste heat generated by the kiln is fully utilized, thereby avoiding the waste of heat energy.

[0024] Specifically, it also includes a second heat exchange component 4; the second heat exchange component 4 includes an air inlet chamber 4-1 arranged at the bottom of the heat dissipation chamber 1-3, a drying plate 4-2 is arranged on the inner side of the air inlet chamber 4-1, and the dryness of the air entering the heat dissipation chamber 1-3 is ensured by arranging the drying plate 4-2, and a plurality of evenly distributed air nozzles 4-3 are arranged on the top of the air inlet chamber 4-1, and a fan 4-4 connected with the air inlet chamber 4-1 is arranged on the outer side of the kiln body 1, and an insulation pipe 4-5 connected with the preheating chamber 1-1 is arranged on the top of the heat dissipation chamber 1-3. When in use, the fan 4-4 is started to allow external cold air to enter the air inlet chamber 4-1 and be ejected from the air nozzle 4-3, and the heat in the heat dissipation chamber 1-3 enters the preheating chamber 1-1 along the insulation pipe 4-5 for preheating, and the waste heat in the heat dissipation chamber 1-3 is recycled and utilized by the second heat exchange component 4, so as to fully utilize the waste heat generated by the kiln and avoid waste of heat energy.

[0025] Specifically, two air outlet cavities 4-6 are relatively provided on the inner side of the preheating chamber 1-1, and the air outlet cavities 4-6 are connected to the insulation pipe 4-5. The side walls of the two air outlet cavities 4-6 close to each other are provided with air equalizing plates 4-7. By setting the air outlet cavities 4-6 and cooperating with the air equalizing plates 4-7, the hot air entering the preheating chamber 1-1 is evenly blown toward the material, thereby improving the uniformity of preheating the material in the preheating chamber 1-1.

[0026] Specifically, the kiln door assembly 2 includes a gantry 2-1 arranged on the kiln body 1, a kiln door 2-2 is slidably mounted on the gantry 2-1, and the kiln door 2-2 is insertedly installed on the kiln body 1. The gantry 2-1 is provided with a driving assembly for driving the kiln door 2-2 to rise and fall. When in use, the kiln door 2-2 is driven to move on the gantry 2-1 by starting the driving assembly and is inserted into the kiln body 1. The preheating chamber 1-1, the drying chamber 1-2 and the heat dissipation chamber 1-3 are isolated by setting the kiln door assembly 2.

[0027] Specifically, the driving assembly includes a driving motor 2-3 arranged on the gantry 2-1, and a bidirectional threaded rod 2-4 is provided at the driving end of the driving motor 2-3. Two sliding blocks 2-5 are relatively provided on the bidirectional threaded rod 2-4. The bottom of the two sliding blocks 2-5 are hinged with one end of a connecting rod 2-6, and the other end of the connecting rod 2-6 is hingedly connected to the middle part of the kiln door 2-2. When in use, the bidirectional threaded rod 2-4 is driven to rotate by starting the driving motor 2-3, and the bidirectional threaded rod 2-4 drives the two sliding blocks 2-5 and the upper part of the connecting rod 2-6 to move first, so that the connecting rod 2-6 rotates relatively, driving the kiln door 2-2 to rise and fall, and the kiln door 2-2 is driven to rise and fall by the driving assembly, thereby ensuring the stability of the kiln door 2-2 during the lifting and lowering process.

[0028] Working principle: When the utility model is in use, when the kiln body 1 continuously sinters the material, the material is first placed in the preheating chamber 1-1 and the first heat exchange component 3 is started for preheating, the preheated material enters the drying chamber 1-2 for drying, the waste heat generated is used to preheat the preheating chamber through the first heat return component 3, the dried material enters the heat dissipation chamber 1-3 for heat dissipation, and the preheating chamber is preheated through the second heat exchange component 4, ensuring full utilization of the preheating.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas-fired drying kiln for refractory material production, characterized in that: include: The kiln body (1) comprises a preheating chamber (1-1), a drying chamber (1-2) and a heat dissipation chamber (1-3); There are four kiln door assemblies (2), which are respectively arranged corresponding to the preheating chamber (1-1), the drying chamber (1-2) and the heat dissipation chamber (1-3); A first heat exchange component (3) is arranged on the kiln body (1) and is used to preheat the refractory material in the preheating chamber (1-1); The first heat exchange component (3) comprises a smoke outlet pipe (3-1) arranged on the kiln body (1) and connected to the drying chamber (1-2); an activated carbon adsorption box (3-5) is provided at the gas outlet end of the smoke outlet pipe (3-1); a negative pressure fan (3-2) is connected to the activated carbon adsorption box (3-5); a serpentine heat exchange pipe (3-3) extending into the preheating chamber (1-1) is provided at the gas outlet end of the negative pressure fan (3-2); and an gas outlet channel (3-4) connected to the preheating chamber (1-1) is provided on the kiln body (1).

2. A gas-fired drying kiln for refractory material production according to claim 1, characterized in that: Also includes a second heat exchange component (4); The second heat exchange component (4) comprises an air inlet chamber (4-1) arranged at the bottom of the heat dissipation chamber (1-3), a drying plate (4-2) is arranged on the inner side of the air inlet chamber (4-1), a plurality of evenly distributed air nozzles (4-3) are arranged on the top of the air inlet chamber (4-1), a fan (4-4) connected to the air inlet chamber (4-1) is arranged on the outer side of the kiln body (1), and a heat preservation pipe (4-5) connected to the preheating chamber (1-1) is arranged on the top of the heat dissipation chamber (1-3).

3. A gas-fired drying kiln for refractory material production according to claim 2, characterized in that: Two air outlet cavities (4-6) are arranged opposite to each other on the inner side of the preheating chamber (1-1); the air outlet cavities (4-6) are in communication with the insulation pipe (4-5); and air distribution plates (4-7) are arranged on the side walls of the two air outlet cavities (4-6) adjacent to each other.

4. A gas-fired drying kiln for refractory material production according to claim 1, characterized in that: The kiln door assembly (2) comprises a gantry (2-1) arranged on a kiln body (1), a kiln door (2-2) being slidably mounted on the gantry (2-1), the kiln door (2-2) being insertedly mounted on the kiln body (1), and a driving assembly for driving the kiln door (2-2) to rise and fall is provided on the gantry (2-1).

5. A gas-fired drying kiln for refractory material production according to claim 4, characterized in that: The driving assembly comprises a driving motor (2-3) arranged on a gantry (2-1); a bidirectional threaded rod (2-4) is provided at a driving end of the driving motor (2-3); two sliding blocks (2-5) are arranged opposite to each other on the bidirectional threaded rod (2-4); one end of a connecting rod (2-6) is hingedly connected to the bottom of the two sliding blocks (2-5); and the other end of the connecting rod (2-6) is hingedly connected to the middle of the kiln door (2-2).

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