CN209820122U - Purple pottery firing rotary kiln - Google Patents
Purple pottery firing rotary kiln Download PDFInfo
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- CN209820122U CN209820122U CN201920043997.7U CN201920043997U CN209820122U CN 209820122 U CN209820122 U CN 209820122U CN 201920043997 U CN201920043997 U CN 201920043997U CN 209820122 U CN209820122 U CN 209820122U
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Abstract
The utility model relates to a purple pottery fires the equipment field, concretely relates to purple pottery fires rotary kiln. Aims to provide a purple pottery firing rotary kiln with good heat preservation effect and energy saving; the technical scheme is as follows: a rotary kiln for firing purple pottery comprises a support, wherein a kiln body is fixed at the upper end of the support, the kiln body is sleeved with a phase change shell, a space between the outer wall of the kiln body and the phase change shell is filled with a high-temperature phase change material, the phase change shell is also sleeved with a heat insulation shell, and a cavity is reserved between the heat insulation shell and the phase change shell; the bottom end of the phase change shell is rotatably connected with the upper end face of the support, the upper end of the phase change shell is in transmission connection with a driving motor arranged at the top of the heat preservation shell, the lower end of the kiln body is provided with a gas inlet and a combustion-supporting gas inlet, the kiln body, the phase change shell and the heat preservation shell are all provided with a gas outlet for discharging waste gas in the kiln body through a door for the purple pottery body to pass through, and the driving motor is electrically connected with a controller arranged at the lower end of the. The utility model has the characteristics of it is effectual, the yield is high, energy-conserving to keep warm.
Description
Technical Field
The utility model relates to a purple pottery fires the equipment field, concretely relates to purple pottery fires rotary kiln.
Background
Purple pottery is a folk traditional handicraft of Jianshui in Yunnan province, and one of four famous pottery in China. Beginning at Yuan Ming Chun. The pottery clay is made of five-color pottery clay for building water and suburb. The product is made by hand through the major procedures of drawing, carving, engraving, filling, scraping, burning, polishing and the like. The pottery has dark purple color and white pattern. The dark black and white embedded products are especially superior. The Jianshui purple pottery has various varieties and comprises a boiling utensil, a tea set, a flowerpot, a table display decoration article and the like. The shape is simple, simple and elegant, and is unique, and the meat steaming tool can be used for steaming meat foods such as chicken, pigeons and the like, and is delicious. The value of the Jianshui purple pottery which is one of the four major pottery products in China is close to one hundred million yuan, the collection and investment trends are continuously rising, and the 'painting and calligraphy civilian pottery' which is an era favorite generated by the current painting and calligraphy art and the grafting of the traditional purple pottery becomes a new important business card of the culture industry of the Jianshui purple pottery and is more concerned.
The firing of Jianshui purple pottery generally comprises two firing methods of oxidation and recovery (reduction). In the oxidizing burning, enough oxygen is always supplied in the kiln chamber during the burning process, the concentration of carbon monoxide is low, and in order to ensure that moisture and other organic matters in the blank are all evaporated and transpired to be discharged, the blank body is normally shortened, so that the oxidizing burning stage is required in the kiln burning process. The color of the purple pottery finished product can be controlled by controlling the firing reaction process in the kiln chamber. The purple pottery is traditionally fired by a dragon kiln, which not only occupies large area, has high requirements on the pottery level, but also can be fired in large batch, has difficult control on oxygen concentration and low success rate, and is basically eliminated. The existing kiln for firing purple pottery adopts a heat preservation layer to preserve heat, the heat preservation effect is limited, and the heat preservation effect can be reduced after long-term use, so that the firing yield of the purple pottery is influenced. At present, gas enters a combustion chamber when a gas kiln is used, and the amount of the gas which can be fully combusted is relatively small due to limited oxygen content in the combustion chamber, so that enough gas needs to be introduced into the high-temperature environment for firing purple pottery in a kiln body, the gas which is inevitably insufficiently combusted is directly discharged to the atmosphere, certain pollution to the external environment can be caused, meanwhile, the required gas amount is large, the energy consumption is high, and the cost for firing purple pottery is relatively high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rotatory kiln is fired to effectual, the energy-conserving purple pottery that keeps warm.
In order to achieve the above object, the utility model adopts the following technical scheme: a rotary kiln for firing purple pottery comprises a support, wherein a kiln body is fixed at the upper end of the support, the kiln body is sleeved with a phase change shell, a space between the outer wall of the kiln body and the phase change shell is filled with a high-temperature phase change material, a heat preservation shell is further sleeved outside the phase change shell, and a cavity is reserved between the heat preservation shell and the phase change shell; the kiln body, the phase change shell and the heat preservation shell are all provided with a gas outlet for discharging waste gas in the kiln body through a door for the purple pottery body to pass through, and the driving motor is electrically connected with a controller arranged at the lower end of the support.
Preferably, the gas inlet is connected with a first flowmeter, the combustion-supporting gas inlet is sequentially connected with a second flowmeter and an electric control proportional valve, and the first flowmeter, the second flowmeter and the electric control proportional valve are respectively and electrically connected with the controller.
Preferably, the heat preservation device further comprises a blower, an air outlet of the blower is connected with the electric control proportional valve, an air outlet of the heat preservation shell is connected with a heat exchanger, and the heat exchanger is further connected with an air inlet of the blower.
Preferably, the phase change shell is internally provided with a disturbance sheet, and the width of the disturbance sheet is smaller than the distance from the inner wall of the phase change shell to the outer wall of the kiln body.
The utility model has the beneficial technical effects that: the phase change shell is sleeved outside the kiln body, a high-temperature phase change material is filled between the outer wall of the kiln body and the phase change shell, the phase change shell is sleeved outside the phase change shell, a cavity is reserved between the heat preservation shell and the phase change shell, and the phase change shell is driven to rotate by the driving motor. The temperature in the kiln body can be kept stable through heat absorption and heat release of the phase-change material, the heat insulation and the cavity can reduce heat exchange between the phase-change shell and the outside, the heat insulation effect is good, and the energy consumption is reduced; the phase change shell rotates, so that waste gas discharged from the kiln body can be uniformly distributed in the cavity, air in the cavity can be heated, and waste heat is fully utilized for heat preservation; the temperature in the kiln body is uniform, heat is absorbed and released through the phase-change material, the temperature in the kiln body is guaranteed to be stable and uniform in distribution, and the cost rate of firing purple pottery can be improved. Because the utility model has the characteristics of it is effectual, the yield is high, energy-conserving to keep warm.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A rotary kiln for firing purple pottery comprises a support 1, wherein a kiln body 2 is fixed at the upper end of the support, the kiln body 2 is sleeved with a phase change shell 3, 4 high-temperature phase change materials are filled in a space between the outer wall of the kiln body 2 and the phase change shell 3, a heat preservation shell 4 is further sleeved outside the phase change shell 3, and a cavity 5 is reserved between the heat preservation shell 4 and the phase change shell 3; the phase change kiln comprises a phase change shell 3, a support 1, a kiln body 2, a phase change shell 3, a kiln body 2, a phase change shell 3, a heat preservation shell 4, a door 20 for purple pottery body to pass through, and an exhaust port 7 for exhaust of waste gas in the kiln body, wherein the bottom end of the phase change shell 3 is rotatably connected with the upper end surface of the support 1, the upper end of the phase change shell is in transmission connection with a driving motor 6 arranged at the top of the heat preservation shell 4, the lower end of the kiln body is provided with a fuel gas inlet 8 and a combustion-.
Specifically, the stand 1 is a flat-top work table constructed of a building material. The kiln body 2 is also a kiln body for firing purple pottery, is built by refractory bricks or other high-temperature-resistant materials, is internally provided with a support plate 21 for placing a purple pottery body, and is provided with a chamber for burning fuel gas below the support plate 21. The phase change shell 3 is also made of refractory bricks or other high temperature resistant materials, and in order to ensure that the phase change shell has high strength during rotation, a high temperature alloy reinforcing rib can be arranged inside the phase change shell. The high-temperature phase change material has a great breakthrough, for example, the Kunming university adopts a melt-leaching process to research the compounding of the high-temperature molten salt phase change energy storage material and different high-performance ceramics, SO that the Ni/Li2CO 3-Na 2CO3 high-temperature phase change composite material for the fuel industrial furnace is successfully prepared, and the Guangdong university of industry has researched that the high-temperature sensible heat/latent heat energy storage material comprises Na2SO4/SiO2, Na2CO 3-BaCO 3/MgO, NaNO3/MgO and the like. The novel high-temperature sensible heat/latent heat composite phase change energy storage material is used as a heat storage material in a heat storage combustion system of a high-temperature kiln. MgF2 crystal is preferably selected, and has high phase transition temperature (1263 ℃) and high heat of fusion (938 kJ/kg). The cavity between the outer wall of the kiln body 2 and the phase change shell 3 is filled with high-temperature phase change materials, and the temperature in the kiln body 2 is kept within a certain temperature range through the phase change energy of the phase change materials.
The heat preservation shell 4 is made of common materials and can meet the structural strength of the heat preservation shell; a cavity 5 is reserved between the heat preservation shell 4 and the phase change shell 3, a thermal insulator can be filled in the cavity, heat of the phase change shell 3 is prevented from being transferred to the heat preservation shell 4, and the heat preservation effect is improved. Thermal insulators are materials that retard heat transfer, and thermal insulators are poor thermal conductors comprising plastic, wood, cork, fiberglass, air, and the like, preferably filled with air. The kiln body 2, the phase change shell 3 and the heat preservation shell 4 are all cylindrical with the upper end being an arc-shaped lower end and are coaxially arranged. The top of the phase change shell 3 passes through a rotating shaft 40, the rotating shaft penetrates through the heat preservation shell 4 and is rotationally connected with the heat preservation shell 4, and then the rotating shaft is in transmission connection with a rotating shaft of the driving motor 6 through a reduction gear box 41; the bottom part is matched with the bracket 1 through a sliding groove or a sliding groove and a ball, and preferably, an annular sliding block 31 which is in sliding and sealing fit with the bracket is fixed at the lower end of the phase change shell 3, so that the upper end surface of the bracket 1 of the phase change shell 3 can rotate in the circumferential direction. The controller 10 drives the driving motor 6 to rotate back and forth, so that the phase change shell 3 can be driven to rotate back and forth along the axis of the phase change shell, waste gas discharged from the kiln body 2 can be uniformly distributed in the cavity 5, air in the cavity 5 can be heated, and waste heat is fully utilized for heat preservation; the heat absorption/release of the high-temperature phase-change material is uniform, and the temperature in the kiln body 2 is ensured to be uniform, so that the finished product rate of the purple pottery firing can be improved.
In addition, a fuel gas inlet 8 and a combustion-supporting gas inlet 9 at the lower end of the kiln body 2 both extend to the lower part of the bracket 1 through a gas pipe penetrating through the upper end surface of the bracket 1; preferably, the gas storage tank is arranged below the support 1, and a gas conveying pipeline is shortened. The door 20 that kiln body 2, phase transition shell 3, heat preservation shell 4 supplied purple pottery body to pass sets up in kiln body 2 purple pottery's backup pad 21 top to putting into and taking out of purple pottery body, the gas vent 7 sets up respectively in kiln body 2, phase transition shell 3, heat preservation shell 4 upper end simultaneously, so that can fill more high temperature phase change material between phase transition shell 3 and the kiln body 2, improves the performance of phase change material temperature regulation. And a door frame 22 extending to the outer wall of the kiln body 2 is arranged at a position corresponding to the door 20 of the phase change shell 3, so that the high-temperature phase change material is prevented from leaking when the door 20 on the phase change shell 3 is opened/closed (the high-temperature phase change material is cooled when the door is opened, so that the high-temperature phase change material is completely solid at the moment, and the leakage can be prevented only by the door frame 20).
Further, the gas inlet 8 is connected with a first flowmeter 11, the combustion-supporting gas inlet 9 is sequentially connected with a second flowmeter 12 and an electric control proportional valve 13, and the first flowmeter 11, the second flowmeter 12 and the electric control proportional valve 13 are respectively and electrically connected with the controller 10. It can be understood that the first flowmeter 11 can monitor the flow rate of the fuel gas entering the kiln body 2 in real time, the second flowmeter 12 can monitor the flow rate of the combustion-supporting gas entering the kiln body 2 in real time, and feed corresponding data back to the controller 10, and the controller 10 controls the electrically controlled proportional valve 13 to adjust the flow rate of the combustion-supporting gas input into the kiln body 2 according to the oxygen concentration (the combustion-supporting gas is generally air) of the blown combustion-supporting gas, so as to accurately control the reaction type (oxidation or reduction) in the kiln body 2. Therefore, the color of the purple pottery after being fired can be accurately controlled.
Further, the heat preservation shell comprises a blower 14, wherein an air outlet of the blower 14 is connected with an electric control proportional valve 13, an air outlet 7 of the heat preservation shell 4 is connected with a heat exchanger 15, and the heat exchanger 15 is also connected with an air inlet of the blower 14. It should be understood that the heat exchanger 15 has a heat source inlet and a heat source outlet that are in communication, and a cold source inlet and a cold source outlet that are in communication. The flue gas in the kiln body 2 is discharged into a heat source inlet of a heat exchanger 15 through an exhaust port 7 on the heat insulation shell 4, then discharged out of a heat source outlet, and combustion-supporting gas enters from a cold source inlet of the heat exchanger 15 and is discharged out of a cold source outlet under the action of an air blower 14 to perform sufficient heat exchange with waste gas. The combustion-supporting gas and the flue gas are subjected to sufficient heat exchange, then the temperature rises and then enters the kiln body 2, the combustion efficiency of the fuel gas can be improved, the waste heat is further utilized, the energy consumption is reduced, and the kiln is economical and environment-friendly.
Furthermore, a disturbance sheet 16 is arranged inside the phase change shell 3, and the width of the disturbance sheet 16 is smaller than the distance from the inner wall of the phase change shell 3 to the outer wall of the kiln body 2. In the rotation of the phase change shell 3, the disturbance sheet 16 also rotates along with the rotation, so that the high-temperature phase change material between the phase change shell 3 and the kiln body 2 can be fully stirred, the heat absorption/release of the high-temperature phase change material is more uniform, and the finished product rate of purple pottery can be further improved. Preferably, the phase change shell 3 can be internally provided with the disturbance plate 16, so that the flue gas exhausted by the kiln body 2 stays in the cavity 5 for a longer time, and the heat preservation effect is further improved.
The utility model discloses a working process:
after the installation is finished, the heat preservation shell 4, the phase change shell 3 and the door 20 on the kiln body 2 are opened in sequence, the purple pottery body is placed on the supporting plate 21, and then the purple pottery bodies are closed in sequence in a reverse order. And starting the first flowmeter 11, the second flowmeter 12, the electric control proportional valve 13 and the blower 14, blowing air into the kiln body 2, inputting fuel gas and igniting. And the burning waste gas passes through the exhaust port 7, flows through the cavity between the kiln body 2 and the phase change shell 3, the cavity 5 and the heat exchanger 15 in sequence, and preheats the combustion-supporting gas through the heat exchanger 15. After a period of time (the kiln temperature is over 200 ℃), the phase change shell 3 is driven to rotate back and forth by the driving motor 6 of the controller 10, so that the uniform kiln temperature and the heat preservation effect of the rotary kiln are ensured. Wherein, according to the data of the first flowmeter 11, the second flowmeter 12, control the electronic control proportional valve 13, regulate the flowrate of the input kiln body 2 of the combustion-supporting gas, thus control the reaction type (oxidation or reduction) in the kiln body 2 accurately and can guarantee the purple pottery of firing is look.
After firing is completed, the controller 10 controls the driving motor 6 to reset, that is, the phase change housing 3 is returned to the mounting position, and then the first flowmeter 11, the second flowmeter 12, the electronically controlled proportional valve 13, and the blower 14 are turned off. After the temperature of the kiln is reduced, opening the heat preservation shell 4, the phase change shell 3 and the door 20 on the kiln body 2 in sequence, and taking out the purple pottery for next firing.
In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Claims (4)
1. A purple pottery firing rotary kiln is characterized in that: the kiln comprises a support (1), wherein a kiln body (2) is fixed at the upper end of the support, the kiln body (2) is sleeved with a phase change shell (3), a high-temperature phase change material is filled in a space between the outer wall of the kiln body (2) and the phase change shell (3), a heat insulation shell (4) is further sleeved outside the phase change shell (3), and a cavity (5) is reserved between the heat insulation shell (4) and the phase change shell (3);
the kiln comprises a phase change shell (3), a kiln body (2), a phase change shell (3), a support (1), a kiln body (2), a kiln body, a phase change shell (3), a kiln body, a controller (10), a phase change shell (3), a kiln body, a phase change shell (3), and a kiln body, wherein the bottom end of the phase change shell (3) is rotatably connected with the upper end face of the support (1), the upper end of the phase change shell is in transmission connection with the driver (6) which is arranged at the top of the heat preservation shell (.
2. The purple pottery firing rotary kiln of claim 1, characterized in that: the fuel gas inlet (8) is connected with a first flowmeter (11), the combustion-supporting gas inlet (9) is sequentially connected with a second flowmeter (12) and an electric control proportional valve (13), and the first flowmeter (11), the second flowmeter (12) and the electric control proportional valve (13) are respectively and electrically connected with the controller (10).
3. The purple pottery firing rotary kiln of claim 2, characterized in that: still include air-blower (14), air-blower (14) gas outlet links to each other with automatically controlled proportional valve (13), gas vent (7) of heat preservation shell (4) are connected with heat exchanger (15), heat exchanger (15) still link to each other with air-blower (14) air inlet.
4. The purple pottery firing rotary kiln of claim 1, characterized in that: the phase change kiln is characterized in that a disturbance sheet (16) is arranged inside the phase change shell (3), and the width of the disturbance sheet (16) is smaller than the distance from the inner wall of the phase change shell (3) to the outer wall of the kiln body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920043997.7U CN209820122U (en) | 2019-01-11 | 2019-01-11 | Purple pottery firing rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920043997.7U CN209820122U (en) | 2019-01-11 | 2019-01-11 | Purple pottery firing rotary kiln |
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| Publication Number | Publication Date |
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| CN209820122U true CN209820122U (en) | 2019-12-20 |
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| CN201920043997.7U Active CN209820122U (en) | 2019-01-11 | 2019-01-11 | Purple pottery firing rotary kiln |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928656A (en) * | 2020-08-21 | 2020-11-13 | 隆昌祥鑫陶瓷有限公司 | High-temperature sintering kiln for coarse ceramics and sintering process thereof |
| CN114111341A (en) * | 2021-11-29 | 2022-03-01 | 碱蓬先创科技(盘锦)有限公司 | Alkaline earth makes tea set and drinking set platform system |
| CN114916341A (en) * | 2022-05-25 | 2022-08-19 | 顺德职业技术学院 | Weather-resistant flowerpot |
-
2019
- 2019-01-11 CN CN201920043997.7U patent/CN209820122U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111928656A (en) * | 2020-08-21 | 2020-11-13 | 隆昌祥鑫陶瓷有限公司 | High-temperature sintering kiln for coarse ceramics and sintering process thereof |
| CN114111341A (en) * | 2021-11-29 | 2022-03-01 | 碱蓬先创科技(盘锦)有限公司 | Alkaline earth makes tea set and drinking set platform system |
| CN114111341B (en) * | 2021-11-29 | 2024-05-24 | 南京多产国际贸易咨询服务有限公司 | Alkaline earth preparation tea set and wine set platform system |
| CN114916341A (en) * | 2022-05-25 | 2022-08-19 | 顺德职业技术学院 | Weather-resistant flowerpot |
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