Special ceramic forming and drying device with batch control

Abstract

The present application relates to ceramic production equipment technical field, disclose a kind of special ceramic forming drying device with batch control, including drying furnace body and protective cabin cover;Rotary transport mechanism is sequentially provided with several layers of independent operation transport tracks from top to bottom, each transport track can transport several green material pallets.The present application in each independent operation transport track, according to the water content of the ceramic embryo to be dried transported differently, adjust the residence time of the green material pallet transported in low temperature zone, medium temperature zone and high temperature zone, so that the different batches of ceramic embryo to be dried can be controlled separately, can effectively control the drying time according to the water content of the different batches of ceramic embryo to be dried, can fully guarantee the drying effect of the different batches of ceramic embryo to be dried.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic production equipment, in particular to a special ceramic forming and drying device with batch control. BACKGROUND

[0002] Special ceramics refer to ceramics with special mechanical, physical or chemical properties. According to the classification of application functions, they can be divided into two categories: high-strength, high-temperature-resistant and composite structure ceramics, and electrical and electronic functional ceramics. By adding special inorganic materials to the ceramic blank and sintering at a temperature of about 1360 degrees, stable and reliable anti-static properties are obtained, becoming a new type of special ceramic, which usually has one or more functions, such as electricity, magnetism, light, heat, sound, chemistry, biology, etc. Coupling functions, such as piezoelectricity, thermoelectricity, electro-optics, acousto-optics, magneto-optics, etc.

[0003] The different chemical composition and organization structure of special ceramics determine its different special properties and functions, such as high strength, high hardness, high toughness, corrosion resistance, electrical conductivity, insulation, magnetism, light transmission, semiconductor, and piezoelectricity, photoelectricity, electro-optics, acousto-optics, magneto-optics, etc. Due to its special performance, this type of ceramic can be used as an engineering structure material and functional material in mechanical, electronic, chemical, smelting, energy, medical, laser, nuclear reaction, aerospace, etc. In addition to single-phase ceramics mainly composed of one compound, there are also composite ceramics composed of two or more compounds.

[0004] In the existing special ceramic production process, in order to accelerate the forming of special ceramics, drying of special ceramics is needed before sintering. Only fully dried special ceramics can maintain their shape during sintering. Full drying forming can effectively ensure the quality of special ceramics after sintering, which is an important link in the production process of special ceramics. In specific production, due to differences in production, the water content and water loss required for forming of different batches of special ceramics are not the same. When drying at the same time, it is difficult to dry and form multiple batches of special ceramics at the same time, resulting in the need for batch drying, which is low in production efficiency.

[0005] In view of the problems in the related art, no effective solution has been proposed so far. SUMMARY

[0006] In view of the deficiencies of the prior art, the present application provides a special ceramic forming and drying device with batch control.

[0007] The application provides the following technical scheme: a special ceramic forming and drying device with batch control, comprising a drying furnace body and a protective cabin cover, the drying furnace body and the protective cabin cover are closed to form a drying cavity, the drying furnace body is provided with an inlet and an outlet on one side, the drying cavity is sequentially divided into a low-temperature zone, a medium-temperature zone and a high-temperature zone from the side close to the inlet to the side away from the inlet, a rotary conveying mechanism entering from the inlet sequentially passes through the low-temperature zone, the medium-temperature zone, the high-temperature zone, the medium-temperature zone and the low-temperature zone and is output from the outlet; the rotary conveying mechanism is sequentially provided with a plurality of layers of conveying tracks operating independently from top to bottom, each conveying track can convey a plurality of embryo material trays, and the plurality of embryo material trays are evenly arranged in each conveying track; the embryo material tray is used for containing ceramic embryo bodies to be dried, and the ceramic embryo bodies to be dried contained in the embryo material tray can be dried and formed during the process of entering from the inlet and outputting from the outlet; the temperatures of the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity increase sequentially, the drying furnace body bottom end and the protective cabin cover top end are both provided with uniform temperature fans, the uniform temperature fans are used for maintaining the same upper layer temperature and lower layer temperature of the drying cavity along the path of each conveying track; different batches of ceramic embryo bodies to be dried are placed in the embryo material trays conveyed by different conveying tracks, and each conveying track can adjust the residence time of the embryo material trays in the low-temperature zone, the medium-temperature zone and the high-temperature zone according to the different water content of the ceramic embryo bodies to be dried.

[0008] Preferably, the conveying track comprises a track groove, a driving chain is arranged in the track groove, the driving chain is driven by a driving wheel, a sprocket is arranged between the driving wheel and the driving chain, the driving wheel is fixed with a driving shaft of a servo motor, and the driving chain can be temporarily fixed with the embryo material tray; the servo motor drives the driving wheel to rotate, drives the driving chain to move under the limitation of the track groove, and drives the embryo material tray temporarily fixed on the driving chain to move downward along the path of the track groove.

[0009] Preferably, each uniform temperature fan is provided with a heating wire, the heating wire is used for providing heat for drying the ceramic embryo bodies to be dried, the power of the heating wire located in the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity increases sequentially, and the specifications and operating power of the plurality of uniform temperature fans arranged at the bottom end of the drying furnace body and the top end of the protective cabin cover are the same.

[0010] Preferably, the several uniform temperature fans arranged at the bottom end of the drying furnace body are opposite to the several uniform temperature fans arranged at the top end of the protective cabin cover in terms of fan wind direction, and both point to the rotary transport mechanism, which is located in the center of the several uniform temperature fans arranged at the bottom end of the drying furnace body and the several uniform temperature fans arranged at the top end of the protective cabin cover.

[0011] Preferably, the drying furnace body is provided with exhaust mechanisms on both sides, each of which comprises an exhaust cylinder provided with an exhaust fan at the bottom, and a liquid collecting mechanism arranged between the exhaust cylinder and the drying chamber for intercepting water vapor discharged through the exhaust cylinder.

[0012] Preferably, the liquid collecting mechanism comprises several condensation plates and a flow guide arranged below the several condensation plates, the water vapor discharged through the condensation plates is condensed into liquid, and the flow guide is used to collect the liquid condensed by each condensation plate and then discharge.

[0013] Preferably, each embryo tray is provided with a weight sensor inside, which is used to detect the weight of all the ceramic embryos to be dried transported on each embryo tray, the total length of the transport track is divided into n drying intervals according to the number n of the embryo trays transported, and the total length of the transport track is divided into n drying intervals according to the number n of the embryo trays transported, and the number of embryo trays transported by each transport track is a positive integer multiple of 6, and n+1 detection points are arranged, and weight detection is triggered once when each embryo tray passes through the detection point.

[0014] Preferably, in each transport track, the weight of all the ceramic embryos to be dried transported on each embryo tray at each detection point is recorded; along the conveying direction of the embryo tray, the weight of all the ceramic embryos to be dried transported on the embryo tray detected by the latter detection point is taken as the expected weight of all the ceramic embryos to be dried transported on the embryo tray of the former detection point; in the next weight detection, the weight of all the ceramic embryos to be dried transported on the embryo tray is recorded as the actual weight, and at this time, the speed of the transport track conveying the embryo tray is controlled according to the average value of the difference between the expected weight and the actual weight of all the ceramic embryos to be dried transported on each embryo tray.

[0015] Preferably, the protective cover comprises three sub-covers, the three sub-covers correspond to the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity respectively, each of the sub-covers can be independently opened; one side of the drying furnace body is provided with two closing doors, the closing doors are used for opening and closing the feeding port and the discharging port respectively; when the three sub-covers are closed and the two closing doors close the feeding port and the discharging port respectively, the drying cavity is sealed from the outside.

[0016] Preferably, one side of the closing door is provided with an electric push rod, one side of the drying furnace body close to the closing door is provided with a limiting track, the electric push rod can push the closing door to move along the limiting track; one side of the closing door close to the drying furnace body is provided with a sealing rubber ring, the sealing rubber ring is used for sealing the closing door and the surface of the drying furnace body when the closing door moves to the bottom end along the limiting track.

[0017] Compared with the prior art, the present application provides a special ceramic forming drying device with batch control, which has the following beneficial effects:

[0018] 1. The special ceramic forming drying device with batch control fixes the embryo trays containing the same batch of ceramic embryo bodies to be dried at equal intervals in a transport track, the transport track enters the drying cavity from the feeding port, and then passes through the low-temperature zone, the medium-temperature zone, the high-temperature zone, the medium-temperature zone and the low-temperature zone in turn, and is output from the discharging port, in each independently operated transport track, the residence time of the embryo trays in the low-temperature zone, the medium-temperature zone and the high-temperature zone is adjusted according to the water content of the ceramic embryo bodies to be dried, so that different batches of ceramic embryo bodies to be dried can be controlled respectively, the drying time of different batches of ceramic embryo bodies to be dried can be controlled respectively according to the different water contents, and the drying effect of different batches of ceramic embryo bodies to be dried can be fully guaranteed.

[0019] 2、The special ceramic forming and drying device with batch control, in the same transport track, the batch of the ceramic embryo to be dried transported is the same, therefore, in the previous weight detection, the weight of the ceramic embryo to be dried transported on the embryo tray detected by the rear detection point along the conveying direction of the embryo tray can be used as the expected weight of the ceramic embryo to be dried transported on the embryo tray of the front detection point, and in the later weight detection, the weight of the ceramic embryo to be dried transported on the embryo tray moved to the rear detection point can be used as the actual weight, therefore, the average value of the difference between the expected weight and the actual weight of the ceramic embryo to be dried transported on all the embryo trays of the whole transport track can effectively represent whether the drying degree in the drying cavity is sufficient, so that the residence time of the batch of the ceramic embryo to be dried in each region can be adjusted according to the positive and negative situations of the average value, and the drying effect of the batch of the ceramic embryo to be dried is fully guaranteed through the change of the residence time.

[0020] 3、The special ceramic forming and drying device with batch control, since the power of the heating wires respectively located in the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity increases in turn, the specifications and operating power of the several uniform temperature fans arranged at the bottom end of the drying furnace body and the several uniform temperature fans arranged at the top end of the protective cabin cover are the same, and the fan wind directions of the several uniform temperature fans arranged at the bottom end of the drying furnace body and the several uniform temperature fans arranged at the top end of the protective cabin cover are opposite and both point to the rotary transport mechanism, the rotary transport mechanism is located in the fan center of the several uniform temperature fans arranged at the bottom end of the drying furnace body and the several uniform temperature fans arranged at the top end of the protective cabin cover, so that the rotary transport mechanism is located at the wind power collection place of each region, so that the upper layer temperature and the lower layer temperature at any position along the path of each transport track are the same in each region, and the drying uniformity of the ceramic embryo to be dried of the several layers of independently operated transport tracks is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is one of the schematic diagrams of the three-dimensional structure of the present application;

[0022] Figure 2 It is the second schematic diagram of the three-dimensional structure of the present application;

[0023] Figure 3 It is the third schematic diagram of the three-dimensional structure of the present application;

[0024] Figure 4 It is the fourth schematic diagram of the three-dimensional structure of the present application; Figure 3 It is the enlarged schematic diagram of part A of the present application;

[0025] Figure 5 It is the fourth schematic diagram of the three-dimensional structure of the present application;

[0026] Figure 6It is a schematic view of internal structure of the present application.

[0027] Figure 7 It is a schematic view of three-dimensional structure of exhaust mechanism of the present application.

[0028] In the figure: 1, drying furnace body; 11, feeding port; 12, discharging port; 2, protective cabin cover; 21, sub-cabin cover; 3, drying cavity; 4, rotary transport mechanism; 41, transport track; 411, track groove; 412, driving chain; 413, driving wheel; 42, blank tray; 5, temperature equalizing fan; 6, exhaust mechanism; 61, exhaust cylinder; 62, exhaust fan; 7, liquid collecting mechanism; 71, condensing plate; 72, flow guide; 8, closing door; 81, electric push rod; 82, limiting track; 9, heating wire. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] As introduced in the background, the deficiencies in the prior art exist, in order to solve the above technical problems, the present application provides a special ceramic forming drying device with batch control.

[0031] Please refer to Figures 1-7The utility model provides a kind of special ceramic forming drying device with batch control, including drying furnace body 1 and protective cabin cover 2, drying furnace body 1 and protective cabin cover 2 are closed to form drying cavity 3, drying furnace body 1 side is equipped with feeding port 11 and discharge port 12, drying cavity 3 is sequentially divided into low-temperature zone, medium-temperature zone and high-temperature zone from the side close to feeding port 11 to the side away from feeding port 11, and rotary transport mechanism 4 entering from feeding port 11 sequentially passes through low-temperature zone, medium-temperature zone, high-temperature zone, medium-temperature zone and low-temperature zone and then is exported from discharge port 12;Rotary transport mechanism 4 is sequentially provided with several layers of independent transport tracks 41 from top to bottom, each transport track 41 can transport several embryo material trays 42, and several embryo material trays 42 are evenly arranged in each transport track 41;Embryo material tray 42 is used to hold ceramic embryo to be dried, and the ceramic embryo to be dried held in embryo material tray 42 can be dried and formed during the process of entering from feeding port 11 and exporting from discharge port 12;The temperature of low-temperature zone, medium-temperature zone and high-temperature zone of drying cavity 3 increases in turn, and the bottom end of drying furnace body 1 and the top end of protective cabin cover 2 are both provided with isothermal fan 5, and isothermal fan 5 is used to maintain the same temperature of upper layer and lower layer at any position along the path of each transport track 41 in drying cavity 3;Different batches of ceramic embryo to be dried are placed in embryo material tray 42 transported by different transport tracks 41, and each transport track 41 can adjust the residence time of transported embryo material tray 42 in low-temperature zone, medium-temperature zone and high-temperature zone according to the different water content of transported ceramic embryo to be dried.

[0032] In use, first, the protective cover 2 is closed with the drying furnace body 1, the inside of the drying cavity 3 is preheated, the low temperature zone, the medium temperature zone and the high temperature zone of the drying cavity 3 are sequentially raised to the set temperature (the set temperature of the low temperature zone, the medium temperature zone and the high temperature zone is the common drying temperature in the prior art, and in the embodiment, 60 DEG C, 75 DEG C and 85 DEG C are preferred in sequence), then a suitable number of ceramic blanks to be dried are placed on the blank tray 42, the blank trays 42 containing the same batch of ceramic blanks to be dried are fixed at equal intervals in a transport track 41, the transport track 41 enters the drying cavity 3 from the feeding port 11, sequentially passes through the low temperature zone, the medium temperature zone, the high temperature zone, the medium temperature zone and the low temperature zone and then is output from the discharging port 12, and in the above process, the ceramic blanks to be dried are sequentially dried and formed, wherein, since the drying furnace body 1 bottom end and the protective cover 2 top end are both provided with the uniform temperature fan 5, under the action of the uniform temperature fan 5, the low temperature zone, the medium temperature zone and the high temperature zone inside the drying cavity 3 generate relative air convection, so that the upper layer temperature and the lower layer temperature at any position along the path of each transport track 41 are the same, the drying uniformity of the ceramic blanks to be dried in the several layers of independently operated transport tracks 41 is ensured, and in each independently operated transport track 41, the residence time of the transported blank tray 42 in the low temperature zone, the medium temperature zone and the high temperature zone is adjusted according to the water content of the transported ceramic blanks to be dried, so that different batches of ceramic blanks to be dried can be controlled respectively in batches, the drying time of different batches of ceramic blanks to be dried can be controlled respectively according to the water content, and the drying effect of different batches of ceramic blanks to be dried can be fully ensured.

[0033] Further, referring to Figures 3-5 , the transport track 41 comprises a track groove 411, the track groove 411 is internally provided with a driving chain 412, the driving chain 412 is driven by a driving wheel 413, the driving wheel 413 is engaged with the driving chain 412 through a sprocket, the driving wheel 413 is fixed with the driving shaft of a servo motor, and the driving chain 412 can be temporarily fixed with the blank tray 42; the servo motor drives the driving wheel 413 to rotate, the driving chain 412 moves under the limitation of the track groove 411, drives the temporarily fixed blank tray 42 on the driving chain 412 to move along the path of the track groove 411, so that each blank tray 42 can be driven to enter from the feeding port 11 and sequentially pass through the low temperature zone, the medium temperature zone, the high temperature zone, the medium temperature zone and the low temperature zone and then be output from the discharging port 12 under the limitation of the track groove 411, and the moving speed of each blank tray 42 driven by the driving chain 412 is controlled by the servo motor, the residence time of the batch of ceramic blanks to be dried in each zone is controlled, and the drying effect of the batch of ceramic blanks is ensured.

[0034] Further, referring to Figure 1 , Figure 6Each of the uniform temperature fans 5 is provided with a heating wire 9 for providing heat for drying the ceramic embryo to be dried. The power of the heating wire 9 located in the low temperature zone, the medium temperature zone and the high temperature zone of the drying cavity 3 is increased in turn. The specifications and operating power of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2 are the same.

[0035] The fan directions of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2 are opposite and both point to the rotary transport mechanism 4. The rotary transport mechanism 4 is located at the center of the fans of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2.

[0036] Since the power of the heating wire 9 located in the low temperature zone, the medium temperature zone and the high temperature zone of the drying cavity 3 is increased in turn, the specifications and operating power of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2 are the same, and the fan directions of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2 are opposite and both point to the rotary transport mechanism 4, the rotary transport mechanism 4 is located at the center of the fans of the uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the uniform temperature fans 5 arranged at the top end of the protective cabin cover 2, so that the rotary transport mechanism 4 is located at the wind power collection place of each zone, so that the upper layer temperature and the lower layer temperature at any position along the path of each transport track 41 are the same, and the drying uniformity of the ceramic embryo to be dried in the several layers of mutually independent transport tracks 41 is ensured.

[0037] Further, please refer to Figure 1 、 Figure 7 The drying furnace body 1 is provided with the exhaust mechanism 6 on both sides. The exhaust mechanism 6 includes the exhaust cylinder 61. The bottom of the exhaust cylinder 61 is provided with the exhaust fan 62. The exhaust cylinder 61 is provided with the liquid collecting mechanism 7 between the drying cavity 3. The liquid collecting mechanism 7 is used for intercepting the water vapor discharged through the exhaust cylinder 61.

[0038] The liquid collecting mechanism 7 includes several condensation plates 71 and a flow guide 72. The flow guide 72 is arranged below the several condensation plates 71. The discharged water vapor is condensed into liquid when passing through the condensation plates 71. The flow guide 72 is used for collecting the liquid condensed by each condensation plate 71 and discharging.

[0039] Therefore, under the action of the exhaust fan 62, the air with high water content in the drying cavity 3 is guided to pass through the condensation plates 71 to remove part of the water content and then is discharged through the exhaust cylinder 61, so as to ensure that the water content in the drying cavity 3 remains at a low level, and the drying is quickly carried out. The water vapor discharged through the exhaust fan 62 is condensed into liquid when passing through the condensation plates 71. The flow guide 72 is used for collecting the liquid condensed by each condensation plate 71 and discharging.

[0040] Further, referring to Figures 1-7 , each of the green body trays 42 is provided with a weight sensor inside, which is used to detect the weight of all the ceramic green bodies to be dried transported on each green body tray 42, and the total length of the transportation track 41 is divided into n drying intervals according to the number n of the green body trays 42 transported, and the number of the green body trays 42 transported by each transportation track 41 is a positive integer multiple of 6, and n+1 detection points are provided, and the weight detection is triggered once when each green body tray 42 passes through the detection points.

[0041] In each transportation track 41, the weight of all the ceramic green bodies to be dried transported on each green body tray 42 at each detection point is recorded respectively; along the conveying direction of the green body tray 42, the weight of all the ceramic green bodies to be dried transported on the green body tray 42 detected by the latter detection point is taken as the expected weight of all the ceramic green bodies to be dried transported on the green body tray 42 of the former detection point; at the next weight detection, the weight of all the ceramic green bodies to be dried transported on the green body tray 42 is recorded as the actual weight, and at this time, the average value of the difference between the expected weight and the actual weight of all the ceramic green bodies to be dried transported on each green body tray 42 is used to control the conveying speed of the green body tray 42 by the transportation track 41.

[0042] In the same transportation track 41, the batch of the ceramic green bodies to be dried transported is the same, so that at the previous weight detection, along the conveying direction of the green body tray 42, the weight of all the ceramic green bodies to be dried transported on the green body tray 42 detected by the latter detection point can be taken as the expected weight of all the ceramic green bodies to be dried transported on the green body tray 42 of the former detection point, and at the next weight detection, the weight of all the ceramic green bodies to be dried transported on the green body tray 42 moved to the latter detection point can be taken as the actual weight, so that the average value of the difference between the expected weight and the actual weight of all the ceramic green bodies to be dried transported on all the green body trays 42 of the whole transportation track 41 can effectively represent whether the drying degree in the drying chamber 3 is sufficient, so that the residence time of the batch of the ceramic green bodies to be dried in each region can be adjusted according to the positive or negative situation of the average value, and through the change of the residence time, the drying effect of the batch of the ceramic green bodies to be dried can be fully guaranteed.

[0043] Further, referring to Figures 1-2 , Figure 5, the protective hatch 2 comprises three sub-hatches 21 corresponding to the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying chamber respectively, each sub-hatch 21 can be independently opened; the drying furnace body 1 is provided with two closure doors 8 on one side, the closure doors 8 are used for opening and closing the feeding port 11 and the discharging port 12 respectively; when the three sub-hatches 21 are closed and the two closure doors 8 close the feeding port 11 and the discharging port 12 respectively, the drying chamber 3 is sealed from the outside.

[0044] The closure door 8 is provided with an electric push rod 81 on one side, and the drying furnace body 1 is provided with a limiting rail 82 on the side close to the closure door 8, the electric push rod 81 can push the closure door 8 to move along the limiting rail 82; the closure door 8 is provided with a sealing rubber ring on the side close to the drying furnace body 1, the sealing rubber ring is used to seal the closure door 8 and the surface of the drying furnace body 1 when the closure door 8 moves to the bottom end along the limiting rail 82, so as to ensure the effective drying under the sealed condition.

[0045] Working principle: in use, first, the protective hatch 2 is closed with the drying furnace body 1, the inside of the drying chamber 3 is preheated, the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying chamber 3 are sequentially raised to the set temperature, then a suitable number of ceramic blanks to be dried are placed on the blank tray 42, the blank tray 42 containing the same batch of ceramic blanks to be dried is fixed in the transport rail 41 at equal intervals, the servo motor drives the driving wheel 413 to rotate, the driving chain 412 moves under the limitation of the rail groove 411, and drives the blank tray 42 temporarily fixed on the driving chain 412 to move along the path of the rail groove 411, so as to drive each blank tray 42 to enter from the feeding port 11 and pass through the low-temperature zone, the medium-temperature zone, the high-temperature zone, the medium-temperature zone and the low-temperature zone in turn and then output from the discharging port 12 under the limitation of the rail groove 411, and the servo motor controls the moving speed of each blank tray 42 driven by the driving chain 412 to control the residence time of the batch of ceramic blanks to be dried in each zone, so as to ensure the drying effect of the batch of ceramic blanks to be dried;

[0046] Wherein, since the power of the heating wires 9 in the low temperature zone, the medium temperature zone and the high temperature zone of the drying cavity 3 increases in turn, the specifications and the running power of the several uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the top end of the protective cabin cover 2 are the same, and the fan wind directions of the several uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the top end of the protective cabin cover 2 are opposite and both point to the rotary transport mechanism 4, the rotary transport mechanism 4 is located at the center of the fans of the several uniform temperature fans 5 arranged at the bottom end of the drying furnace body 1 and the top end of the protective cabin cover 2, so that the rotary transport mechanism 4 is located at the wind power collection place of each zone, thereby making the upper layer temperature and the lower layer temperature at any position along the path of each transport track 41 the same in each zone, and ensuring the drying uniformity of the ceramic embryos to be dried in the several layers of independently operated transport tracks 41;

[0047] In the specific drying process, the closed door 8 can be moved along the limiting rail 82 by the electric push rod 81 to selectively seal between the closed door 8 and the surface of the drying furnace body 1, thereby sealing the feeding port 11 and the discharging port 12, so as to maintain the sealed environment between the drying cavity 3 and the outside, and ensure the drying effect;

[0048] In the same transport track 41, the batch of the transported ceramic embryos to be dried is the same, so that in the previous weight detection, the weight of all the ceramic embryos to be dried on the embryo tray 42 detected by the rear detection point in the conveying direction of the embryo tray 42 can be used as the expected weight of all the ceramic embryos to be dried on the embryo tray 42 of the front detection point, and in the later weight detection, the weight of all the ceramic embryos to be dried on the embryo tray 42 moved to the rear detection point can be used as the actual weight, so that the average value of the difference between the expected weight and the actual weight of all the ceramic embryos to be dried on all the embryo trays 42 of the whole transport track 41 can effectively represent whether the drying degree in the current drying cavity 3 is sufficient, so that the residence time of the batch of the ceramic embryos to be dried in each zone can be adjusted according to the positive or negative situation of the average value, and the drying effect of the batch of the ceramic embryos to be dried can be fully ensured by changing the residence time.

[0049] And in each independently operated transport track 41, the residence time of the transported embryo tray 42 in the low temperature zone, the medium temperature zone and the high temperature zone is adjusted according to the water content of the transported ceramic embryos to be dried, so that the batch control of different batches of the ceramic embryos to be dried can be performed respectively, the drying time of different batches of the ceramic embryos to be dried can be effectively controlled according to the different water contents of different batches of the ceramic embryos to be dried, and the drying effect of different batches of the ceramic embryos to be dried can be fully ensured.

[0050] And in the drying process, by the action of exhaust fan 62, the air with high water content inside drying chamber 3 is guided to pass through condensing plate 71 to condense and remove part of the water, and then is discharged through exhaust cylinder 61, so as to keep the water content inside drying chamber 3 at a low level, and ensure the rapid drying.

[0051] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A special ceramic forming and drying device with batch control, comprising a drying furnace body and a protective cabin cover, and a drying cavity is formed after the drying furnace body and the protective cabin cover are closed, characterized in that: a feeding port and a discharging port are arranged on one side of the drying furnace body, and the drying cavity is sequentially divided into a low-temperature zone, a medium-temperature zone and a high-temperature zone from the side close to the feeding port to the side away from the feeding port, and a rotary conveying mechanism entering from the feeding port sequentially passes through the low-temperature zone, the medium-temperature zone, the high-temperature zone, the medium-temperature zone and the low-temperature zone and is then output from the discharging port; a plurality of transport tracks independently operating are sequentially arranged on the rotary conveying mechanism from top to bottom, each of the transport tracks can transport a plurality of embryo material trays, and the plurality of embryo material trays in each of the transport tracks are evenly arranged; the embryo material tray is used for containing ceramic embryo bodies to be dried, and the ceramic embryo bodies to be dried contained in the embryo material tray can be dried and formed in the process of entering from the feeding port and outputting from the discharging port; the temperatures of the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity increase sequentially, and the drying furnace body bottom end and the protective cabin cover top end are both provided with uniform temperature fans, and the uniform temperature fans are used for maintaining the upper layer temperature and the lower layer temperature of the drying cavity at any position along the path of each of the transport tracks to be the same; different batches of ceramic embryo bodies to be dried are respectively placed in the embryo material trays transported by different transport tracks, and each of the transport tracks can adjust the residence time of the embryo material trays transported in the low-temperature zone, the medium-temperature zone and the high-temperature zone according to the different water content of the ceramic embryo bodies to be dried transported; each of the uniform temperature fans is provided with heating wires, the heating wires are used for providing heat for drying the ceramic embryo bodies to be dried, and the powers of the heating wires located in the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity increase sequentially; the fan directions of the plurality of uniform temperature fans arranged at the drying furnace body bottom end and the plurality of uniform temperature fans arranged at the protective cabin cover top end are opposite and both point to the rotary conveying mechanism, and the rotary conveying mechanism is located at the fan center of the plurality of uniform temperature fans arranged at the drying furnace body bottom end and the plurality of uniform temperature fans arranged at the protective cabin cover top end. The transport track comprises a track groove, the track groove is internally provided with a driving chain, the driving chain is driven by a driving wheel, a sprocket is arranged between the driving wheel and the driving chain, the driving wheel is fixed with a driving shaft of a servo motor, and the driving chain can be temporarily fixed with the embryo material tray; the servo motor drives the driving wheel to rotate, drives the driving chain to move under the limitation of the track groove, and drives the embryo material tray temporarily fixed on the driving chain to move downwards along the path of the track groove. The specifications and operating powers of the plurality of uniform temperature fans arranged at the drying furnace body bottom end and the plurality of uniform temperature fans arranged at the protective cabin cover top end are the same. ​ ​ ​ ​ ​ 2. The special ceramic forming and drying device with batch control according to claim 1, characterized in that: ​ ​ 3. The special ceramic forming and drying device with batch control according to claim 1, characterized in that: ​ 4. The special ceramic forming and drying device with batch control according to claim 1, characterized in that: The exhaust mechanism is provided with an exhaust cylinder, and the bottom of the exhaust cylinder is provided with an exhaust fan.

5. The special ceramic forming and drying device with batch control according to claim 4, characterized in that: The liquid collecting mechanism includes a plurality of condensation plates and a flow guide, the flow guide is arranged below the plurality of condensation plates, the discharged water vapor is condensed into liquid when passing through the condensation plates, and the flow guide is used for collecting the liquid condensed by each condensation plate and then discharging.

6. The special ceramic forming and drying device with batch control according to claim 1, characterized in that: Each of the embryo material trays is provided with a weight sensor inside, the weight sensor is used for detecting the weight of all the ceramic embryos to be dried transported on each of the embryo material trays, the total length of the transportation track is divided into n drying intervals according to the number n of the transported embryo material trays in the total length of the transportation track, and the number of the embryo material trays transported by each of the transportation tracks is a positive integer multiple of n, n+ detection points are arranged, and weight detection is triggered once when each of the embryo material trays passes through the detection points.

7. The special ceramic forming and drying device with batch control according to claim 6, characterized in that: In each transportation track, the weight of all the ceramic embryos to be dried transported on each of the embryo material trays at each weight detection is recorded respectively; In the conveying direction of the embryo material tray, the weight of all the ceramic embryos to be dried transported on the embryo material tray detected by the latter detection point is taken as the expected weight of all the ceramic embryos to be dried transported on the embryo material tray of the former detection point; In the next weight detection, the weight of all the ceramic embryos to be dried transported on the embryo material tray is recorded as the actual weight, and the speed of the transportation track conveying the embryo material tray is controlled according to the average value of the difference between the expected weight and the actual weight of all the ceramic embryos to be dried transported on each of the embryo material trays.

8. The special ceramic forming and drying device with batch control according to claim 1, characterized in that: The protective cover includes three sub-covers, the three sub-covers correspond to the low-temperature zone, the medium-temperature zone and the high-temperature zone of the drying cavity respectively, and each of the sub-covers can be independently opened. One side of the drying furnace body is provided with two closure doors, the closure doors are used for respectively opening and closing the feeding port and the discharging port. When the three sub-covers are closed and the two closure doors respectively close the feeding port and the discharging port, the drying cavity is sealed from the outside.

9. The special ceramic forming and drying device with batch control according to claim 8, characterized in that: One side of the closure door is provided with an electric push rod, and the side close to the closure door of the drying furnace body is provided with a limiting track, the electric push rod can push the closure door to move along the limiting track. One side of the closure door close to the drying furnace body is provided with a sealing rubber ring, which is used for sealing the closure door and the surface of the drying furnace body when the closure door moves to the bottom end along the limiting track.

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