A microwave uniform heating and segmented drying device for high-moisture billet

Abstract

The present invention relates to the field of drying ceramic tile blanks, and in particular to a microwave uniform heating segmented drying device for high-moisture blanks. In the process of drying the brick blanks, cracks are easily formed on the surface of the brick blanks in traditional drying devices, which makes it difficult to release the internal stress of the brick blanks and the brick blanks are prone to local collapse and deformation, resulting in a low yield of the brick blanks. A microwave uniform heating segmented drying device for high-moisture blanks includes a support frame, a closed frame, and a servo motor, etc.; a closed frame is fixedly connected to the support frame, and six drying chambers are arranged inside the closed frame, and a servo motor is fixedly connected to one end of the support frame. The two microwave heating components and hot air on the left side jointly use microwaves and low-temperature and high-humidity hot air to dry the brick blanks. The brick blanks solidify after losing a small amount of water, and the brick blanks have a certain strength. Then the two microwave heating components and hot air in the middle jointly use microwaves and high-temperature and high-humidity hot air to dry the brick blanks.

Description

Technical Field

[0001] The invention relates to the field of ceramic tile blank drying, and in particular to a microwave uniform heating segmented drying device for high-moisture blanks. Background Art

[0002] Ceramic bricks are made of clay and other inorganic non-metallic raw materials into brick blanks, which are then dried and fired to form plate-shaped or block-shaped ceramic products. The traditional drying method for ceramic brick blanks is to pile the materials in a drying room and slowly dry them with hot air at low temperature. During the drying process, the temperature difference between the inside and outside of the brick blanks is large, and the moisture inside the brick blanks cannot quickly reach the surface of the brick blanks, resulting in the brick blanks taking a long time to fully dry. The large temperature difference between the inside and outside of the brick blanks leads to a large difference in the water loss rate between the surface and the inside of the brick blanks, which easily leads to uneven drying of the brick blanks, thereby causing cracks in the brick blanks. In addition, since traditional drying devices usually use pallets to support the brick blanks during the drying process of the brick blanks, it is not convenient to release the stress inside the brick blanks, which easily leads to cracking of the brick blanks. Or conventional rollers are used to support the brick blanks for drying. Because the strength of the brick blanks is low when the moisture content is high, the brick blanks are relatively soft, and the brick blanks move on the sticks. The brick blanks cannot be well supported, resulting in partial collapse of the brick blanks and easy wave deformation, which will lead to a low yield of the brick blanks. Summary of the invention

[0003] In order to overcome the shortcomings of traditional drying devices during the brick drying process, such as cracks are easily formed on the surface of the brick blanks, it is not convenient to release the internal stress of the brick blanks, and the brick blanks are prone to local collapse and deformation, thereby resulting in a low brick blank yield, the purpose of the present invention is to provide a high-moisture blank microwave uniform heating segmented drying device that can reduce the probability of cracks on the surface of the brick blanks, facilitate the release of the internal stress of the brick blanks, and reduce the local collapse of the brick blanks, thereby improving the brick blank yield.

[0004] Technical solution: A microwave uniform heating and segmented drying device for high-moisture billet, comprising a support frame, a closed frame fixedly connected to the support frame, a servo motor fixedly connected to one end of the support frame, transmission shafts rotatably connected to both ends of the support frame, one of the transmission shafts is fixedly connected to the output shaft of the servo motor, two sprockets are fixedly connected to the two transmission shafts, one of the chains is wound between the two sprockets located at the front side, and another chain is wound between the two sprockets located at the rear side, a heating and drying component is provided on the closed frame, and a conveying component is provided between the two chains;

[0005] The conveying assembly includes support bars, several groups of support bars are fixedly connected to the chain, several groups of mounting bars are fixedly connected to the chain, each mounting bar is slidably connected to a lifting bar, a limiting tube is fixedly connected to the middle of each mounting bar, the lifting bar and the limiting tube are slidably connected, one end of a support tube is fixedly connected to the middle of each mounting bar, hose racks are fixedly connected between the same group of mounting bars, a supporting plate is fixedly connected to one mounting bar in each group of mounting bars, a transmission tube is fixedly connected to each support plate, a piston rod is slidably connected to each transmission tube, a supporting spring is connected between the piston rod and the transmission tube, six pressing frames are fixedly connected to the inner side of the closed frame, and a round rod is fixedly connected to the upper part of the piston rod.

[0006] In addition, it is particularly preferred that the heating and drying component includes a dehumidification fan, six drying chambers are arranged inside the closed frame, the dehumidification fan is fixedly connected to one side of the upper part of the closed frame, six air guide hoods are fixedly connected to the upper part of the closed frame, air guide pipes are fixedly connected between the upper ends of the six air guide hoods, the upper ends of the six air guide hoods are connected to the air guide pipes, one end of the air guide pipes is connected to the air inlet of the dehumidification fan, an exhaust fan is fixedly connected to one end of the closed frame close to the servo motor, the air inlet of the exhaust fan is connected to the kiln waste heat hot air conveying pipe of the firing kiln, the air outlet of the exhaust fan is connected to the inside of the closed frame, a solenoid valve is fixedly connected to the inner side of the upper part of the air guide hood, a group of air guide plates is fixedly connected between every two adjacent drying chambers in the closed frame, there are five groups of air guide plates, each group of air guide plates has two air guide plates, and each air guide plate has a number of through grooves, a microwave heating component is fixedly connected to one side of the four drying chambers in the closed frame away from the exhaust fan, and a far-infrared heating component is fixedly connected to the upper parts of the two drying chambers in the closed frame close to the exhaust fan.

[0007] In addition, it is particularly preferred that the support bars on each meter of chain are a group, the mounting bars on each meter of chain are a group, several support bars and several lifting bars are arranged at intervals, the gap between two adjacent support bars is 0.5 cm-5 cm, and the gap between two adjacent lifting bars is 0.5 cm-5 cm.

[0008] In addition, it is particularly preferred that six drying chambers are provided inside the closed frame, the two chains are parallel, the other end of the support tube is connected to the lower inner side of the limiting tube, the ends of the support tubes on the same group of mounting strips away from the limiting tube are connected to the hose rack, and the pressing rack is provided with several upper inclined surfaces and several lower inclined surfaces, and the several upper inclined surfaces and several lower inclined surfaces on the pressing rack are arranged at intervals.

[0009] In addition, it is particularly preferred that the support bars, mounting bars, lifting bars, limiting tubes, support tubes, hose racks, support plates, transmission tubes, piston rods, support springs, support bars, mounting bars, lifting bars, limiting tubes, support tubes, hose racks, support plates, transmission tubes, piston rods and support springs are all made of wave-transmitting materials.

[0010] In addition, it is particularly preferred that two limiting bars are fixedly connected to the bottom of the closed frame, and the limiting bars are in contact with the chain.

[0011] Furthermore, it is particularly preferred that the limiting bar is used to support the chain.

[0012] In addition, it is particularly preferred that an auxiliary drying component is also included, which is used to assist in drying the bricks, and the auxiliary drying component includes a hot air blower, two hot air blowers are fixedly connected to the outside of the closed frame, two diverter frames are fixedly connected to the outside of the closed frame, and the air outlet of the hot air blower is connected to the diverter frame, six straight tubes one are fixedly connected to one of the diverter frames, one of the diverter frames is connected to the six straight tubes one, six straight tubes two are fixedly connected to the other diverter frame, and the other diverter frame is connected to the six straight tubes two, and two guide frames are rotatably connected to the lower part of the closed frame, six guide grooves are opened on the two guide frames, six connecting hoses are fixedly connected to the two guide frames, the six connecting hoses on the same guide frame form a group, and the six guide grooves on the same guide frame are respectively connected to the six connecting hoses in the same group, the six connecting hoses in one group are respectively connected to the six straight tubes one, and the six connecting hoses in the other group are respectively connected to the six straight tubes two.

[0013] In addition, it is particularly preferred that it also includes a swing component, which is used to move the guide frame, and the swing component includes an electric push rod, which is fixedly connected to the bottom of the closed frame, and a transmission frame is fixedly connected to the telescopic rod of the electric push rod, and the transmission frame has two transmission grooves, and both guide frames are fixedly connected to levers, and the two levers are respectively located in the two transmission grooves on the transmission frame.

[0014] The beneficial effect is as follows: when the brick blanks pass through the two drying chambers on the left side of the closed frame, the two microwave heating components on the left side and the hot air jointly use microwaves and low-temperature and high-humidity hot air to dry the brick blanks. The brick blanks lose a small amount of moisture and solidify, and the brick blanks have a certain strength. Then, when the brick blanks pass through the two middle drying chambers on the closed frame, the two middle microwave heating components and the hot air jointly use microwaves and high-temperature and high-humidity hot air to dry the brick blanks. By performing microwave heating on the brick blanks in a hot air and high-humidity environment, the temperature inside the brick blanks can be quickly increased, and the moisture can quickly reach the surface of the brick blanks, thereby quickly drying the brick blanks. Controlling the humidity of the hot air can further control the evaporation rate of moisture on the surface of the brick blanks, making the water loss rate on the surface of the brick blanks and the inside of the brick blanks closer, thereby avoiding cracks due to uneven drying of the brick blanks, thereby improving the drying effect of the brick blanks and further improving the yield of the brick blanks.

[0015] When the same group of support bars and the same group of lifting bars jointly drive the brick blank to move to the right, the same group of support bars intermittently pushes the brick blank to move upward or downward, and the same group of support bars and the same group of lifting bars intermittently contact the brick blank, so that the support point of the brick blank is constantly changing, which is convenient for the release of internal stress of the brick blank during the drying process of the brick blank, and because the gap between two adjacent support bars and the gap between two adjacent lifting bars are both between 0.5 cm and 5 cm, the brick blank can be better supported. In the early stage of brick blank drying, the brick blank is not easy to collapse, thereby releasing the internal stress of the brick blank and maintaining the flatness of the brick blank surface, thereby reducing the probability of defective brick blanks and improving the yield of brick blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the auxiliary drying component of the present invention.

[0018] Figure 3 It is a partially cutaway three-dimensional structural schematic diagram of the heating and drying component and the auxiliary drying component of the present invention.

[0019] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the pressing component, the auxiliary drying component and the swinging component of the present invention.

[0020] Figure 5 It is a partial three-dimensional structural schematic diagram of the sprocket, chain and conveying assembly of the present invention.

[0021] Figure 6 It is a partially cutaway three-dimensional structural schematic diagram of the heating and drying component and the auxiliary drying component of the present invention.

[0022] Figure 7 It is a partial three-dimensional structural schematic diagram of the conveying component and the pressing component of the present invention.

[0023] Figure 8 It is a partial cross-sectional three-dimensional structural schematic diagram of the chain, conveying assembly, limiting strip and auxiliary drying assembly of the present invention.

[0024] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0025] Fig.10 For the present invention Figure 8 Schematic diagram of the enlarged three-dimensional structure at point B in the middle.

[0026] Fig.11 It is a partially cutaway three-dimensional structural schematic diagram of the pressing frame, the auxiliary drying assembly and the swing assembly of the present invention.

[0027] Fig.12 It is a partial three-dimensional structural schematic diagram of the pressing component, the auxiliary drying component and the swinging component of the present invention.

[0028] Fig.13 It is a partially separated sectional three-dimensional structural schematic diagram of the air guide plate, the conveying assembly and the round rod of the present invention.

[0029] In the figure: 1, support frame, 2, closing frame, 3, servo motor, 41, transmission shaft, 42, sprocket, 43, chain, 51, dehumidification fan, 52, air guide hood, 53, air guide pipe, 54, exhaust fan, 55, solenoid valve, 56, air guide plate, 57, microwave heating component, 58, far-infrared heating component, 61, support bar, 62, installation bar, 63, lifting bar, 64, limit tube, 65, support tube, 66, hose rack, 661, support plate, 67, transmission pipe, 68, piston rod, 69, support spring, 74, pressing frame, 75, round rod, 701, limit bar, 81, hot air blower, 82, diversion frame, 83, straight pipe one, 84, straight pipe two, 85, connecting hose, 86, guide frame, 90, electric push rod, 91, lever, 92, transmission frame. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1: A microwave uniform heating and segmented drying device for high-moisture billet, such as Figure 1-Figure 13 As shown, it includes a support frame 1, a closed frame 2, a servo motor 3, a transmission shaft 41, a sprocket 42, a chain 43, a heating and drying component, a conveying component and a limit strip 701. The support frame 1 is fixedly connected to the closed frame 2, and six drying chambers are arranged inside the closed frame 2. The servo motor 3 is connected to one end of the support frame 1 by bolts. Both ends of the support frame 1 are rotatably connected to the transmission shaft 41, one of which is fixedly connected to the output shaft of the servo motor 3, and two sprockets 42 are fixedly connected to the two transmission shafts 41. There are two sprockets 42 on the left and right sides of the support frame 1, one of the chains 43 is wound between the two sprockets 42 on the front side, and another chain 43 is wound between the two sprockets 42 on the rear side. The two chains 43 are parallel. A heating and drying component is provided on the closed frame 2, and the heating and drying component is used to dry brick blanks. A conveying component is provided between the two chains 43, and the conveying component is used to convey brick blanks. Two limit strips 701 are fixedly connected to the bottom of the closed frame 2, and the limit strips 701 are in contact with the chains 43.

[0032] The heating and drying assembly includes a dehumidification fan 51, an air guide cover 52, an air guide pipe 53, an exhaust fan 54, a solenoid valve 55, an air guide plate 56, a microwave heating component 57 and a far-infrared heating component 58. The dehumidification fan 51 is connected to one side of the upper part of the closed frame 2 by bolts. Six air guide covers 52 are welded on the upper part of the closed frame 2. An air guide pipe 53 is fixedly connected between the upper ends of the six air guide covers 52. The upper ends of the six air guide covers 52 are all connected to the air guide pipe 53. One end of the air guide pipe 53 is connected to the air inlet of the dehumidification fan 51. The end of the closed frame 2 close to the servo motor 3 is connected to the exhaust fan 54 by bolts. The air inlet of the exhaust fan 54 is connected to the kiln furnace of the firing kiln. The exhaust fan 54 is connected to the interior of the closed frame 2, and a solenoid valve 55 is fixedly connected to the inner side of the upper part of the air guide cover 52. A group of air guide plates 56 are fixedly connected between every two adjacent drying chambers in the closed frame 2. There are five groups of air guide plates 56 in total, and each group of air guide plates 56 has two air guide plates. Each air guide plate 56 has a number of through grooves. The air guide plates 56 are used to guide the hot air of the waste heat of the kiln. A microwave heating component 57 is fixedly connected to one side of the four drying chambers in the closed frame 2 away from the exhaust fan 54, and a far-infrared heating component 58 is fixedly connected to the upper part of the two drying chambers in the closed frame 2 close to the exhaust fan 54.

[0033] The conveying assembly includes a support bar 61, a mounting bar 62, a lifting bar 63, a limiting tube 64, a support tube 65, a hose rack 66, a support plate 661, a transmission tube 67, a piston rod 68, a support spring 69, a pressing frame 74 and a round rod 75. A plurality of support bars 61 are welded on the chain 43, and the support bars 61 on each meter of the chain 43 form a group. A plurality of mounting bars 62 are welded on the chain 43, and the mounting bars 62 on each meter of the chain 43 form a group. Each mounting bar 62 is slidably connected with a lifting bar 63. A plurality of support bars 61 and a plurality of lifting bars 63 are arranged at intervals. The gap between two adjacent support bars 61 is 0.5 cm-5 cm, and the gap between two adjacent lifting bars 63 is 0.5 cm-5 cm. The support bars 61 and the lifting bars 63 are both used to support the brick blanks. A limiting tube 64 is fixedly connected to the middle of each mounting bar 62, and the lifting bars 63 and the limiting tube 6 4 is connected in a sliding manner. One end of a support tube 65 is fixedly connected to the middle of each mounting bar 62, and the other end of the support tube 65 is communicated with the lower inner part of the limit tube 64. A hose rack 66 is fixedly connected between the ends of the support tubes 65 on the same group of mounting bars 62 away from the limit tube 64, and the ends of the support tubes 65 on the same group of mounting bars 62 away from the limit tube 64 are communicated with the hose rack 66. A support plate 661 is fixedly connected to one mounting bar 62 in each group of mounting bars 62, and a transmission tube 67 is fixedly connected to each support plate 661. A piston rod 68 is slidably connected to each transmission tube 67. A support spring 69 is connected between the piston rod 68 and the transmission tube 67 through a hook. Six pressing frames 74 are welded on the inner side of the closing frame 2. A plurality of upper inclined surfaces and a plurality of lower inclined surfaces are provided on the pressing frame 74. The plurality of upper inclined surfaces and the plurality of lower inclined surfaces on the pressing frame 74 are arranged at intervals. A round rod 75 is fixedly connected to the upper part of the piston rod 68.

[0034] The support bar 61, the mounting bar 62, the lifting bar 63, the limiting tube 64, the support tube 65, the hose rack 66, the support plate 661, the transmission tube 67, the piston rod 68, the support spring 69, the support bar 61, the mounting bar 62, the lifting bar 63, the limiting tube 64, the support tube 65, the hose rack 66, the support plate 661, the transmission tube 67, the piston rod 68 and the support spring 69 are all made of wave-transparent materials so that microwaves can pass through.

[0035] The limiting bar 701 is used to support the chain 43 .

[0036] Working principle: At first, the worker starts the servo motor 3, the exhaust fan 54, the solenoid valve 55, the dehumidification fan 51, the microwave heating component 57 and the far-infrared heating component 58. The output shaft of the servo motor 3 rotates clockwise to drive one of the transmission shafts 41 to rotate clockwise. The clockwise rotation of one of the transmission shafts 41 drives the sprocket 42, the chain 43 and the other transmission shaft 41 to rotate clockwise. The chain 43 drives the support bar 61, the installation bar 62, the lifting bar 63, the limit tube 64, the support tube 65, the hose rack 66, the support plate 661, the transmission tube 67, the piston rod 68, the support spring 69 and the round rod 7 5 rotates clockwise, the exhaust fan 54 draws the kiln waste heat hot air in the kiln waste heat hot air conveying pipe of the firing kiln into the closed frame 2, and the hot air passes through the air guide plate 56 and is sequentially introduced into the six drying chambers on the closed frame 2, so as to preheat the six drying chambers on the closed frame 2. The worker can adjust the hot air exhaust speed in the six drying chambers on the closed frame 2 by controlling the opening and closing of the solenoid valve 55. The worker controls the humidity in the two drying chambers on the left side of the closed frame 2 to 60-70%, and the humidity in the two drying chambers in the middle of the closed frame 2 to 50-60%.

[0037] After the drying chamber inside the closed frame 2 is preheated, the worker conveys the extruded high-moisture brick to the top of the same group of support bars 61, so that the brick is located above the same group of support bars 61 on the upper side away from the exhaust fan 54. When the support bar 61 is on the upper side, the chain 43 drives the support bar 61 to move to the right, and the same group of support bars 61 and the same group of lifting bars 63 jointly drive the brick to move to the right into the closed frame 2. Then the worker conveys the next extruded high-moisture brick to the top of the next group of support bars 61, and the brick passes through the two left sides of the closed frame 2. When the bricks are in the drying chamber, the microwave power of the two microwave heating components 57 on the left is controlled so that the temperature of the bricks is controlled at 40-50 degrees. The two microwave heating components 57 on the left and the hot air together use microwaves and low-temperature and high-humidity hot air to dry the bricks, so that the moisture content of the bricks is dried from 20% to 16%. The bricks lose a small amount of moisture and solidify, and the bricks have a certain strength. Then, when the bricks pass through the two middle drying chambers on the closed frame 2, the microwave power of the two microwave heating components 57 on the right is controlled so that the temperature of the bricks is controlled at 70-80 degrees. The two microwave heating components 57 and the hot air together use microwaves and high-temperature and high-humidity hot air to dry the bricks, so that the moisture content of the bricks is dried from 16% to 10%. By heating the bricks with microwaves in a hot air and high-humidity environment, the temperature inside the bricks can be quickly raised, and the moisture can quickly reach the surface of the bricks, thereby quickly drying the bricks. Controlling the humidity of the hot air can further control the evaporation rate of the moisture on the surface of the bricks, so that the water loss rate of the surface of the bricks and the inside of the bricks are closer, thereby avoiding cracks caused by uneven drying of the bricks, thereby improving the drying effect of the bricks. To further improve the yield rate of brick blanks, when the brick blanks pass through the two drying chambers on the right side of the closed frame 2, the far-infrared heating component 58 and hot air use far-infrared and hot air together to heat and dry the blanks, so that the surface temperature of the blanks is controlled at 80-130 degrees, and the moisture content of the brick blanks is dried from 10% to about 0.3%, thereby completing the drying of the brick blanks so that the brick blanks meet the requirements of subsequent processes, and then the same group of support bars 61 and the same group of lifting bars 63 continue to drive the brick blanks to move together, and the brick blanks are separated from the inside of the closed frame 2, and then the workers transport the dried brick blanks to the next process.

[0038] When the same group of support bars 61 and the same group of lifting bars 63 jointly drive the brick to move to the right and enter the interior of the closed frame 2, the support plate 661, the transmission tube 67, the piston rod 68, the support spring 69, and the round rod 75 on one of the mounting bars 62 between the same group of support bars 61 move to the right, and the round rod 75 contacts the six pressing frames 74 in turn. The round rod 75 moves horizontally to the right and first contacts the leftmost lower inclined surface on the pressing frame 74. The round rod 75 continues to move to the right. The leftmost lower inclined surface on the pressing frame 74 squeezes the round rod 75 to move downward. The downward movement of the round rod 75 drives the piston rod 68 to move downward, the support spring 69 is compressed, and then the round rod 75 contacts the leftmost upper inclined surface on the pressing frame 74. 5 continues to move to the right, the support spring 69 rebounds and drives the piston rod 68 and the round rod 75 to move upward and reset, and then the round rod 75 contacts the lower inclined surface and the upper inclined surface of the pressing frame 74 in turn, and the round rod 75 moves along the lower inclined surface and the upper inclined surface of the pressing frame 74, so that the piston rod 68 and the round rod 75 reciprocate up and down. When the piston rod 68 and the round rod 75 move downward, the support spring 69 is compressed, and the gas in the transmission tube 67 passes through the hose rack 66 and the support tube 65 into the limit tube 64, and the gas squeezes the lifting bar 63 to move upward by 4 mm. Specifically, when the same group of lifting bars 63 moves upward by 2 mm, the same group of lifting bars 63 contacts the brick blank, and then the same group of lifting bars 63 pushes the brick blank to move upward by 2 mm When the same group of support bars 61 separates from the brick, and the piston rod 68 and the round rod 75 move upward to reset, the gas in the limit tube 64 returns to the transmission tube 67 through the hose rack 66 and the support tube 65, and a negative pressure is generated inside the limit tube 64. The negative pressure inside the limit tube 64 attracts the lifting bar 63 to move downward. Specifically, when the same group of lifting bars 63 moves downward by 2 mm, the same group of support bars 61 contacts the brick, and then the same group of lifting bars 63 continues to move downward by 2 mm, and the same group of lifting bars 63 separates from the brick, and then the pressing rack 74 squeezes the piston rod 68 and the round rod 75 downward again, and the same group of lifting bars 63 moves upward again, and so on. The same group of support bars 61 and the same group of lifting bars 63 together The brick blank is driven to move to the right. During the movement of the brick blank to the right, the same group of support bars 61 intermittently pushes the brick blank to move upward or downward. The same group of support bars 61 and the same group of lifting bars 63 intermittently contact the brick blank, so that the support point of the brick blank is constantly changing, which is convenient for the release of the internal stress of the brick blank during the drying process of the brick blank. Since the gap between two adjacent support bars 61 and the gap between two adjacent lifting bars 63 are both between 0.5 cm and 5 cm, the brick blank can be better supported. In the early stage of brick blank drying, the brick blank is not easy to collapse, thereby releasing the internal stress of the brick blank and maintaining the flatness of the brick blank surface, thereby reducing the probability of defective brick blanks and improving the finished product rate of the brick blank.

[0039] When the chain 43 drives the support bar 61, the mounting bar 62, the lifting bar 63, the limit tube 64, the support tube 65, the hose rack 66, the support plate 661, the transmission tube 67, the piston rod 68, the support spring 69 and the round rod 75 to rotate clockwise, the limit bar 701 supports the lower side surface of the upper middle position of the chain 43 to reduce the shaking of the chain 43 during the rotation process, thereby improving the stability of the support bar 61, the mounting bar 62 and the lifting bar 63 during movement.

[0040] Embodiment 2: Based on embodiment 1, Figure 1-Figure 4 and Figure 8-Figure 12 As shown, an auxiliary drying component is also included, which is used to assist in drying the bricks. The auxiliary drying component includes a hot air blower 81, a diverter frame 82, a straight pipe 1 83, a straight pipe 2 84, a connecting hose 85 and a guide frame 86. Two hot air blowers 81 are connected to the outside of the closed frame 2 by bolts, and two diverter frames 82 are connected to the outside of the closed frame 2 by bolts. The air outlet of the hot air blower 81 is connected to the diverter frame 82, and six straight pipes 1 83 are fixedly connected to one of the diverter frames 82, and one of the diverter frames 82 is connected to the six straight pipes 1 83, and another diverter frame 82 is fixedly connected to six straight pipes 2 84, and another The diverter frame 82 is connected to the six straight pipes 2 84, and the lower part of the closed frame 2 is rotatably connected to two guide frames 86, and six guide grooves are provided on the two guide frames 86, and the guide grooves on the guide frames 86 are used to discharge hot air. Six connecting hoses 85 are fixedly connected to the two guide frames 86, and the six connecting hoses 85 on the same guide frame 86 form a group, and the six guide grooves on the same guide frame 86 are respectively connected to the six connecting hoses 85 of the same group, wherein the six connecting hoses 85 in one group are respectively connected to the six straight pipes 1 83, and the six connecting hoses 85 in the other group are respectively connected to the six straight pipes 2 84.

[0041] Working principle: At first, the staff starts the hot air blower 81, and a small amount of hot air discharged from the hot air blower 81 is discharged through the diverter frame 82, straight pipe 1 83, straight pipe 2 84, connecting hose 85 and guide frame 86. The hot air discharged from the guide groove of the guide frame 86 blows on the lower surface of the brick blank, so that the surface of the brick blank can be more fully in contact with the air in the drying chamber, thereby reducing the difference in drying speed between the upper and lower surfaces of the brick blank and improving the uniformity of drying of the brick blank.

[0042] Embodiment 3: Based on embodiment 2, Fig.11 and Fig.12As shown, it also includes a swing component, which is used to move the guide frame 86. The swing component includes an electric push rod 90, a lever 91 and a transmission frame 92. The electric push rod 90 is fixedly connected to the bottom of the closed frame 2. The transmission frame 92 is fixedly connected to the telescopic rod of the electric push rod 90. The transmission frame 92 has two transmission grooves. The two guide frames 86 are welded with levers 91, and the two levers 91 are respectively located in the two transmission grooves on the transmission frame 92.

[0043] At first, the worker starts the electric push rod 90, and the telescopic rod of the electric push rod 90 is extended and retracted to drive the transmission frame 92 to move back and forth. The up and down reciprocating movement of the transmission frame 92 pushes the lever 91 and the guide frame 86 to swing back and forth, so that the airflow discharged by the guide frame 86 blows more evenly on the lower surface of the brick blank, further reducing the difference in drying speed between the upper and lower surfaces of the brick blank, thereby further improving the uniformity of drying of the brick blank.

[0044] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, all equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A microwave uniform heating and segmented drying device for high-moisture billet, characterized in that: The invention comprises a support frame (1), a closed frame (2) is fixedly connected to the support frame (1), a servo motor (3) is fixedly connected to one end of the support frame (1), transmission shafts (41) are rotatably connected to both ends of the support frame (1), one of the transmission shafts (41) is fixedly connected to the output shaft of the servo motor (3), two sprocket wheels (42) are fixedly connected to the two transmission shafts (41), one of the chains (43) is wound between the two sprocket wheels (42) at the front side, and another chain (43) is wound between the two sprocket wheels (42) at the rear side, a heating and drying component is provided on the closed frame (2), and a conveying component is provided between the two chains (43); The conveying assembly comprises a support bar (61), a plurality of groups of support bars (61) are fixedly connected to the chain (43), a plurality of groups of mounting bars (62) are fixedly connected to the chain (43), each mounting bar (62) is slidably connected to a lifting bar (63), a limiting tube (64) is fixedly connected to the middle of each mounting bar (62), the lifting bar (63) and the limiting tube (64) are slidably connected, one end of a support tube (65) is fixedly connected to the middle of each mounting bar (62), and the mounting bars (62) of the same group are connected to each other. A hose rack (66) is fixedly connected between the two mounting strips (62); a support plate (661) is fixedly connected to one mounting strip (62) in each group of mounting strips (62); a transmission tube (67) is fixedly connected to each support plate (661); a piston rod (68) is slidably connected to each transmission tube (67); a support spring (69) is connected between the piston rod (68) and the transmission tube (67); six pressing racks (74) are fixedly connected to the inner side of the closing frame (2); and a round rod (75) is fixedly connected to the upper part of the piston rod (68).

2. The high-moisture billet microwave uniform heating staged drying device according to claim 1, characterized in that: The heating and drying component comprises a dehumidification fan (51), six drying chambers are arranged inside the closed frame (2), the dehumidification fan (51) is fixedly connected to one side of the upper part of the closed frame (2), six air guide covers (52) are fixedly connected to the upper part of the closed frame (2), an air guide pipe (53) is fixedly connected between the upper ends of the six air guide covers (52), the upper ends of the six air guide covers (52) are all connected to the air guide pipe (53), one end of the air guide pipe (53) is connected to the air inlet of the dehumidification fan (51), one end of the closed frame (2) close to the servo motor (3) is fixedly connected to the exhaust fan (54), and the air inlet of the exhaust fan (54) is connected to the kiln waste heat hot air conveying pipe of the firing kiln. The air outlet of the exhaust fan (54) is connected to the interior of the closed frame (2); a solenoid valve (55) is fixedly connected to the inner side of the upper part of the air guide cover (52); a group of air guide plates (56) is fixedly connected between each two adjacent drying chambers in the closed frame (2); there are five groups of air guide plates (56) in total, each group of air guide plates (56) has two air guide plates (56); each air guide plate (56) has a plurality of through slots; a microwave heating component (57) is fixedly connected to one side of the four drying chambers in the closed frame (2) away from the exhaust fan (54); and a far-infrared heating component (58) is fixedly connected to the upper parts of the two drying chambers in the closed frame (2) close to the exhaust fan (54).

3. The high-moisture billet microwave uniform heating staged drying device according to claim 2, characterized in that: The support bars (61) on each meter of the chain (43) form a group, and the mounting bars (62) on each meter of the chain (43) form a group. A plurality of support bars (61) and a plurality of lifting bars (63) are arranged at intervals, and the gap between two adjacent support bars (61) is 0.5 cm to 5 cm, and the gap between two adjacent lifting bars (63) is 0.5 cm to 5 cm.

4. The high-moisture billet microwave uniform heating staged drying device according to claim 3, characterized in that: Six drying chambers are arranged inside the closed frame (2), two chains (43) are parallel, the other end of the support tube (65) is connected to the lower inner side of the limiting tube (64), the ends of the support tubes (65) on the same set of mounting strips (62) away from the limiting tube (64) are all connected to the hose rack (66), and the pressing rack (74) is provided with a plurality of upper inclined surfaces and a plurality of lower inclined surfaces, and the plurality of upper inclined surfaces and the plurality of lower inclined surfaces on the pressing rack (74) are arranged at intervals.

5. The high-moisture billet microwave uniform heating staged drying device according to claim 4, characterized in that: The support bar (61), the mounting bar (62), the lifting bar (63), the limiting tube (64), the support tube (65), the hose rack (66), the support plate (661), the transmission tube (67), the piston rod (68), the support spring (69), the support bar (61), the mounting bar (62), the lifting bar (63), the limiting tube (64), the support tube (65), the hose rack (66), the support plate (661), the transmission tube (67), the piston rod (68) and the support spring (69) are all made of wave-transmitting material.

6. The high-moisture billet microwave uniform heating staged drying device according to claim 4, characterized in that: Two limit bars (701) are fixedly connected to the inner bottom of the closed frame (2), and the limit bars (701) are in contact with the chain (43).

7. The high-moisture billet microwave uniform heating staged drying device according to claim 6, characterized in that: The limiting strip (701) is used to support the chain (43).

8. The high-moisture billet microwave uniform heating staged drying device according to claim 7, characterized in that: The auxiliary drying assembly is used to assist in drying the bricks. The auxiliary drying assembly includes a hot air blower (81). Two hot air blowers (81) are fixedly connected to the outside of the closed frame (2). Two flow divider frames (82) are fixedly connected to the outside of the closed frame (2). The air outlet of the hot air blower (81) is connected to the flow divider frame (82). Six straight tubes 1 (83) are fixedly connected to one of the flow divider frames (82). One of the flow divider frames (82) is connected to the six straight tubes 1 (83). Another flow divider frame (82) is fixedly connected to six straight tubes 2 (84). Another flow divider frame (82) is connected to the six straight tubes 2 (85). 84), the lower part of the closed frame (2) is rotatably connected to two guide frames (86), six guide grooves are formed on the two guide frames (86), six connecting hoses (85) are fixedly connected to the two guide frames (86), the six connecting hoses (85) on the same guide frame (86) form a group, the six guide grooves on the same guide frame (86) are respectively connected to the six connecting hoses (85) of the same group, the six connecting hoses (85) in one group are respectively connected to the six straight pipes 1 (83), and the six connecting hoses (85) in the other group are respectively connected to the six straight pipes 2 (84).

9. The high-moisture billet microwave uniform heating staged drying device according to claim 8, characterized in that: The invention also comprises a swing assembly, the swing assembly is used to move the guide frame (86), the swing assembly comprises an electric push rod (90), the electric push rod (90) is fixedly connected to the bottom of the closed frame (2), a transmission frame (92) is fixedly connected to the telescopic rod of the electric push rod (90), the transmission frame (92) is provided with two transmission grooves, and the two guide frames (86) are both fixedly connected with a lever (91), and the two levers (91) are respectively located in the two transmission grooves on the transmission frame (92).

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