Energy-saving rapid drying kiln

Abstract

The utility model discloses an energy-saving rapid drying kiln which comprises a kiln frame, a circulating fan and a burner. The kiln frame comprises a hot air mixing cavity and a drying cavity; the hot air mixing cavity is communicated with an external heat supply pipe, and a dehumidifying device is arranged on the hot air mixing cavity; an air inlet pipeline and an air outlet pipeline are arranged on the two sides of the drying cavity correspondingly, and the drying cavity communicates with the hot air mixing cavity through the air inlet pipeline and the air outlet pipeline. An air volume control structure is arranged at a communication port between the air outlet pipeline and the hot air mixing cavity; the circulating fan is arranged in the hot air mixing cavity, and the burner is arranged on one side of the hot air mixing cavity. The air volume management and control structure controls the air volume of low-temperature hot air entering the hot air mixing cavity from the air outlet pipeline, and the situation that the low-temperature hot air accounts for a large proportion in mixed hot air is avoided, so that the situation that the temperature of the hot air mixed by the low-temperature hot air and hot air of an external heat supply pipe cannot reach the required temperature in the kiln is avoided as much as possible; finally, the frequency of heating the mixed hot air in the hot air mixing cavity by starting the burner is reduced, and the purpose of saving energy is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic body drying equipment, in particular to an energy-saving rapid drying kiln. Background Art

[0002] The rapid drying kiln is an important supporting equipment in ceramic production. At present, the main hot air used for rapid drying of ceramic embryos comes from the external heating pipe supply and the secondary heating of the air inside the circulation chamber of the rapid drying kiln by the burner. The rapid drying kiln mainly transports hot air to the kiln through the circulating fan, dries the ceramic embryos by convection, and the low-temperature hot air generated during the drying process is mixed with the hot air from the external heating pipe and will enter the next circulation through the circulating fan. When the low-temperature hot air accounts for a large proportion, the hot air temperature obtained by mixing the low-temperature hot air and the hot air from the external heating pipe will not reach the temperature required for drying in the kiln. At this time, it is necessary to turn on the burner to heat the air in the kiln, resulting in energy waste. Summary of the invention

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide an energy-saving rapid drying kiln. To achieve the above purpose, the technical solution provided by the utility model is:

[0004] An energy-saving rapid drying kiln comprises a kiln frame, a circulating fan, and a burner; wherein the kiln frame comprises a hot air mixing chamber and a drying chamber;

[0005] The hot air mixing chamber is connected to an external heating pipe, and a dehumidification device is provided on the hot air mixing chamber;

[0006] The two sides of the drying chamber are respectively provided with an air inlet duct and an air outlet duct, and are connected with the hot air mixing chamber through the air inlet duct and the air outlet duct to form a hot air circulation channel;

[0007] An air volume control structure is provided at the connecting port between the air outlet duct and the hot air mixing chamber to control the air volume of low-temperature hot air entering the hot air mixing chamber from the air outlet duct;

[0008] The circulating fan is installed in the hot air mixing chamber;

[0009] The burner is installed on one side of the hot air mixing chamber.

[0010] In the present technical scheme, the air volume of low-temperature hot air entering the hot air mixing chamber from the air outlet duct is controlled by an air volume control structure. Under the condition that the efficiency of hot air transport by the external heating pipe remains unchanged, the low-temperature hot air can be prevented from accounting for a large proportion of the mixed hot air in the hot air mixing chamber, thereby avoiding as much as possible that the hot air temperature obtained after the low-temperature hot air and the hot air from the external heating pipe are mixed and cannot reach the required temperature in the kiln, and finally reducing the number of times the burner needs to be turned on to heat the mixed hot air in the hot air mixing chamber, thereby achieving the purpose of energy saving.

[0011] Furthermore, the air volume control structure includes a baffle, a slide rail, and a push-pull assembly;

[0012] The slide rails are arranged on both sides above the connecting opening between the air outlet duct and the hot air mixing chamber;

[0013] The baffle is slidably connected to the slide rail;

[0014] The push-pull assembly is connected to the baffle plate, and pushes or pulls the baffle plate to move along the extension direction of the slide rail.

[0015] Further, the push-pull assembly includes a push-pull rod and a handle;

[0016] One end of the push-pull rod is connected to the baffle;

[0017] The handle is connected to the other end of the push-pull rod.

[0018] In the present technical solution, the push-pull rod is controlled by a handle to push or pull the baffle to move, so as to control the opening and closing degree of the connecting port between the air outlet duct and the hot air mixing chamber, thereby controlling the amount of low-temperature hot air entering the hot air mixing chamber from the air outlet duct.

[0019] Furthermore, one end of the push-pull rod passes through one side of the baffle and is connected to the other side of the baffle, and the circumferential surface of the push-pull rod is in contact with the inner side surface of the baffle.

[0020] In the technical solution, the push-pull rod is not only used to push or pull the baffle to move, but also can be used as a reinforcing rib to enhance the strength of the baffle.

[0021] Furthermore, the handle is a spherical handle, which is easy to hold.

[0022] Furthermore, the air volume control structure also includes a locking component for locking the push-pull component.

[0023] Further, the locking assembly includes a limit tube extending out of the kiln frame and a tightening screw;

[0024] The limiting tube is provided with a through hole;

[0025] The push-pull rod passes through the limiting tube;

[0026] The through holes of the tightening screw and the limit tube cooperate with the locking push-pull rod to prevent the baffle from shaking during hot air transportation, and also prevent the opening and closing degree of the connecting port between the air outlet duct and the hot air mixing chamber from suddenly changing due to accidental contact or misoperation, thereby affecting production.

[0027] Further, the dehumidification device includes a dehumidification fan and a dehumidification pipe;

[0028] The dehumidification pipe passes through the hot air mixing chamber and is connected to the air inlet pipe;

[0029] The dehumidification fan is connected with the dehumidification pipe.

[0030] Furthermore, a ceramic fiber insulation layer is provided on the outer surface of the external heating pipe to ensure the temperature of the hot air transported through the external heating pipe.

[0031] Furthermore, the external heating pipe and the dehumidification device are respectively located on both sides of the hot air mixing chamber to avoid mutual influence between heating and dehumidification.

[0032] Compared with the prior art, the principles and advantages of this technical solution are as follows:

[0033] 1. The air volume control structure is used to control the air volume of low-temperature hot air entering the hot air mixing chamber from the air outlet duct. When the efficiency of hot air transportation by the external heating pipe remains unchanged, the low-temperature hot air in the mixed hot air in the hot air mixing chamber is avoided to account for a large proportion. This avoids the temperature of the hot air obtained after the low-temperature hot air and the hot air from the external heating pipe being mixed to not reach the required temperature in the kiln. Ultimately, the number of times the burner needs to be turned on to heat the mixed hot air in the hot air mixing chamber is reduced, thereby achieving the purpose of energy saving.

[0034] 2. One end of the push-pull rod passes through one side of the baffle and is connected to the other side of the baffle, and the circumferential surface of the push-pull rod fits the inner side of the baffle, so that the push-pull rod can not only be used to push or pull the baffle to move, but also can be used as a reinforcing rib to enhance the strength of the baffle.

[0035] 3. Tighten the screws and the through holes of the limit tube to lock the push-pull rod to prevent the baffle from shaking during hot air delivery. It can also prevent the opening and closing degree of the connecting port between the air outlet duct and the hot air mixing chamber from changing suddenly due to accidental contact or misoperation, thus affecting production. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the services required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a main schematic diagram of an energy-saving rapid drying kiln of the utility model (C is an air volume control structure);

[0038] Figure 2 This is a three-dimensional diagram of the air volume control structure in an energy-saving rapid drying kiln of the utility model (the connecting port A between the air outlet duct and the hot air mixing chamber is fully opened, and B is the side wall of the kiln frame);

[0039] Figure 3 It is a three-dimensional diagram of the air volume control structure in an energy-saving rapid drying kiln of the utility model (the connecting port A between the air outlet duct and the hot air mixing chamber is partially opened, and B is the side wall of the kiln frame).

[0040] Reference numerals:

[0041] 1-kiln frame; 2-circulating fan; 3-burner; 4-hot air mixing chamber; 5-drying chamber; 6-heating pipe; 7-dehumidification device; 8-air inlet duct; 9-air outlet duct; 10-baffle; 11-slide rail; 12-push-pull rod; 13-ball handle; 14-limiting tube; 15-tightening screw; 16-through hole. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with specific implementation methods:

[0043] like Figure 1 As shown, an energy-saving rapid drying kiln described in this embodiment includes a kiln frame 1, a circulating fan 2, and a burner 3; wherein the kiln frame 1 includes a hot air mixing chamber 4 and a drying chamber 5; the hot air mixing chamber 4 is connected to an external heating pipe 6, and a dehumidification device 7 is provided on the hot air mixing chamber 4; an air inlet duct 8 and an air outlet duct 9 are respectively provided on both sides of the drying chamber 5, and are connected to the hot air mixing chamber 4 through the air inlet duct 8 and the air outlet duct 9 to form a hot air circulation channel; an air volume control structure is provided at the connecting port between the air outlet duct 9 and the hot air mixing chamber 4 to control the air volume of low-temperature hot air entering the hot air mixing chamber 4 from the air outlet duct 9; the circulating fan 2 is installed in the middle of the hot air mixing chamber 4; the burner 3 is installed on one side of the hot air mixing chamber 4, and is located near the connecting portion between the air outlet duct 9 and the hot air mixing chamber 4.

[0044] Specifically, in this embodiment, Figure 2 and Figure 3 As shown, the air volume control structure includes a baffle 10, a slide rail 11, a push-pull assembly, and a locking assembly for locking the push-pull assembly. The push-pull assembly includes a push-pull rod 12 and a ball handle 13; the locking assembly includes a tightening screw 15 and a limit tube 14 extending out of the kiln frame 1 and having a through hole 16;

[0045] Among them, the slide rails 11 are arranged on both sides above the connecting port between the air outlet duct 9 and the hot air mixing chamber 4; the baffle 10 is slidably connected to the slide rails 11; one end of the push-pull rod 12 passes through one side of the baffle 10 and is connected to the other side of the baffle 10, and the circumferential surface of the push-pull rod 12 is in contact with the inner side surface of the baffle 10; the other end of the push-pull rod 12 passes through the limiting tube 14, and the tightening screw 15 and the through hole 16 of the limiting tube 14 cooperate to lock the push-pull rod 12.

[0046] Specifically, in this embodiment, the dehumidification device 7 includes a dehumidification fan and a dehumidification pipe; the dehumidification pipe passes through the hot air mixing chamber 4 and is connected to the air inlet duct 8; the dehumidification fan is connected to the dehumidification pipe. The dehumidification rate of the kiln is controlled by the exhaust speed of the dehumidification fan.

[0047] Specifically, in this embodiment, a ceramic fiber insulation layer is provided on the outer surface of the external heating pipe 6 to ensure the temperature of the hot air transported through the external heating pipe 6 .

[0048] Specifically, in this embodiment, the external heating pipe 6 and the dehumidification device 7 are respectively located on both sides of the hot air mixing chamber 4 to avoid mutual influence between heating and dehumidification.

[0049] In this embodiment, the push-pull rod 12 is controlled by the spherical handle 13 to push or pull the baffle 10 to move along the slide rail 11, so as to control the opening and closing degree of the connecting port between the air outlet duct 9 and the hot air mixing chamber 4, thereby controlling the amount of low-temperature hot air entering the hot air mixing chamber 4 from the air outlet duct 9. When the efficiency of hot air transportation by the external heating pipe 6 remains unchanged, it is avoided that the low-temperature hot air accounts for a large proportion in the mixed hot air in the hot air mixing chamber 4, thereby avoiding as much as possible that the hot air temperature obtained after the low-temperature hot air and the hot air from the external heating pipe 6 are mixed to not reach the required temperature in the kiln, and finally reducing the number of times the burner 3 needs to be turned on to heat the mixed hot air in the hot air mixing chamber 4, thereby achieving the purpose of energy saving.

[0050] The push-pull rod 12 is not only used to push or pull the baffle 10 to move, but also can serve as a reinforcing rib to enhance the strength of the baffle 10 .

[0051] The through hole 16 of the tightening screw 15 and the limiting tube 14 cooperates with the locking push-pull rod 12 to prevent the baffle 10 from shaking during hot air transportation, and also to prevent the opening and closing degree of the connecting port between the air outlet duct 9 and the hot air mixing chamber 4 from suddenly changing due to accidental contact or misoperation, thereby affecting production.

[0052] The embodiments described above are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, all changes made based on the shape and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving rapid drying kiln, characterized in that: It includes a kiln frame, a circulating fan, and a burner; wherein the kiln frame includes a hot air mixing chamber and a drying chamber; The hot air mixing chamber is connected to an external heating pipe, and a dehumidification device is provided on the hot air mixing chamber; The two sides of the drying chamber are respectively provided with an air inlet duct and an air outlet duct, and are connected with the hot air mixing chamber through the air inlet duct and the air outlet duct to form a hot air circulation channel; An air volume control structure is provided at the connecting port between the air outlet duct and the hot air mixing chamber to control the air volume of low-temperature hot air entering the hot air mixing chamber from the air outlet duct; The circulating fan is installed in the hot air mixing chamber; The burner is installed on one side of the hot air mixing chamber.

2. An energy-saving rapid drying kiln according to claim 1, characterized in that: The air volume control structure includes a baffle, a slide rail, and a push-pull assembly; The slide rails are arranged on both sides above the connecting opening between the air outlet duct and the hot air mixing chamber; The baffle is slidably connected to the slide rail; The push-pull assembly is connected to the baffle plate, and pushes or pulls the baffle plate to move along the extension direction of the slide rail.

3. An energy-saving rapid drying kiln according to claim 2, characterized in that: The push-pull assembly includes a push-pull rod and a handle; One end of the push-pull rod is connected to the baffle; The handle is connected to the other end of the push-pull rod.

4. The energy-saving rapid drying kiln according to claim 3, characterized in that: One end of the push-pull rod passes through one side of the baffle plate and is connected to the other side of the baffle plate, and the circumferential surface of the push-pull rod is in contact with the inner side surface of the baffle plate.

5. The energy-saving rapid drying kiln according to claim 3, characterized in that: The handle is a spherical handle.

6. An energy-saving rapid drying kiln according to any one of claims 3 to 5, characterized in that: The air volume control structure also includes a locking component for locking the push-pull component.

7. The energy-saving rapid drying kiln according to claim 6, characterized in that: The locking assembly includes a limit tube extending out of the kiln frame and a tightening screw; The limiting tube is provided with a through hole; The push-pull rod passes through the limiting tube; The through holes of the tightening screw and the limiting tube cooperate with the locking push-pull rod.

8. The energy-saving rapid drying kiln according to claim 1, characterized in that: The dehumidification device comprises a dehumidification fan and a dehumidification pipe; The dehumidification pipe passes through the hot air mixing chamber and is connected to the air inlet pipe; The dehumidification fan is connected with the dehumidification pipe.

9. The energy-saving rapid drying kiln according to claim 1, characterized in that: The outer surface of the external heating pipe is provided with a ceramic fiber insulation layer.

10. An energy-saving rapid drying kiln according to claim 1 or 9, characterized in that: The external heating pipe and the dehumidification device are respectively located on both sides of the hot air mixing chamber.

Images