Ceramic drying kiln discharge device and kiln discharge control method

Abstract

The present invention relates to a ceramic drying kiln discharge device and a kiln discharge control method. The ceramic drying kiln discharge device is installed at the drying kiln outlet, and is composed of a double-layer roller table, an elevator, a lifting roller table and an outlet wire frame connected in sequence; the kiln discharge direction of the drying kiln bricks is perpendicular to the elevator, and the elevator is used to turn and transport the dried bricks in batches through the lifting roller table and the horizontal roller table. The present invention provides a brick discharge direction perpendicular to the elevator direction, which can be turned and transported without passing through a 90-degree turning machine, and the temperature of the bricks can be forced to cool, so that continuous, stable and efficient production can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of ceramic tiles, and in particular relates to a ceramic drying kiln discharge device and a kiln discharge control method. Background Art

[0002] In the process of preparing ceramic tiles, the present invention meets the requirements of large-scale continuous production. After the brick blanks are pressed and formed, they are dried in a drying kiln and transported to the glaze line by a kiln discharge device for processing. The processing requires that the brick blanks be discharged from the kiln at a fast speed, the conveying roller table has good flatness, and the brick blanks are not collided or damaged and are smoothly delivered to the production line.

[0003] At present, the kiln discharge device of the drying kiln generally adopts a lifting roller table, which is connected to a horizontal roller table behind the lifting roller table, and the end section is equipped with a 90-degree turning mechanism. The dried bricks are transported by the multi-layer roller table to the horizontal roller table through the elevator to be discharged from the kiln, and then transported to the glaze line for decoration processing through the turning mechanism. Due to the large size of the traditional kiln discharge mechanism of the drying kiln, the conventional belt lifting roller table can only be installed in parallel with the elevator, and a 90-degree turning mechanism must be installed at the end, which requires a larger space to accommodate the turning mechanism, which is not conducive to the installation and design layout of the production equipment; at the same time, the ordinary kiln discharge device of the drying kiln adopts natural cooling to cool the bricks discharged from the kiln. The temperature of the bricks cools slowly, and the hot air volatilized by the body affects the performance of the detection components such as the photoelectric switch installed on the roller table. There are disadvantages such as large footprint, poor production continuity, and harsh working environment. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device for discharging ceramic drying kilns, in which the pulley of the lifting roller stand is set parallel to the direction of conveying the brick blanks, the brick blank conveying direction of the roller bar of the lifting roller stand is perpendicular to the brick blank conveying direction of the pulley of the lifting roller stand, and the lifting of the lifting roller is controlled by setting a cylinder, and the rotation of the roller bar of the horizontal roller is controlled by a photoelectric switch, and the pulley and the roller bar cooperate to smoothly convey the brick blanks to the production line without the aid of a 90-degree turning machine, and the device has a simple structure, small footprint, compact space utilization, and smooth brick blank conveying operation. Another purpose of the present invention is to provide a method for discharging ceramic drying kilns, in which the direction of discharging brick blanks is perpendicular to the direction of the elevator, and the brick blanks can be turned and conveyed without passing through a 90-degree turning machine, and the temperature of the brick blanks can be forced to cool, and continuous, stable and efficient production can be achieved.

[0005] The technical solution of the present invention is the ceramic drying kiln discharge device, which is installed at the drying kiln exit. The special feature of the present invention is that the ceramic drying kiln discharge device is composed of a double-layer roller table, an elevator, a lifting roller table and an exit wire frame connected in sequence; the direction in which the drying kiln bricks discharge from the kiln is perpendicular to the elevator, and the elevator is used to turn and transmit the dried bricks in batches through the lifting roller table and the horizontal roller table.

[0006] Preferably, the double-layer roller table is composed of a frame, an upper roller table and a lower roller table arranged on the frame, baffle motors respectively installed on the sides of the upper roller table and the lower roller table and connected to the movable baffle, induction electric eyes respectively arranged at the middle, middle rear and rear ends of the sides of the upper roller table and the lower roller table, a movable baffle and a double-layer roller table cooling fan, a gear set arranged on both sides of the upper roller table and the lower roller table, and roller table roller rods flatly connected to the upper roller table and the lower roller table through the gear sets on both sides.

[0007] Preferably, the elevator is composed of a frame, an elevator roller table arranged in the middle of the elevator frame, a servo motor installed on the top of the frame and connected to the lifting transmission chain, a lifting transmission chain connected to the counterweight blocks 25 on both sides of the elevator frame, and an elevator induction electric eye arranged on the side of the brick feeding end of the elevator roller table, and the counterweight block is used to provide pulling force for the lifting and lowering of the elevator roller table.

[0008] Preferably: the lifting roller table is composed of a frame, cylinders respectively arranged on the lifting roller table frames, a first lifting roller table and a second lifting roller table installed side by side on the frames, lifting roller table induction electric eyes and cooling fans respectively arranged on the brick blank feeding end and tail end of the first lifting roller table and the second lifting roller table frames, gear sets and roller bars on both sides respectively arranged on the first lifting roller table and the second lifting roller table frames, and a pulley arranged on the lifting roller table through a bracket; the brick blank conveying direction of the roller bar is 90 degrees to the conveying direction of the pulley of the bracket, and the solenoid valve is driven by the circuit, and the solenoid valve passes compressed air into the cylinder on the lifting roller table frame to realize the lifting action of the lifting roller table to transport the brick blanks.

[0009] Preferably, the outlet wire rack is composed of a frame, a wire rack pulley arranged on the frame, an outlet wire rack induction electric eye installed at the brick feeding end of the frame, and a dust removal fan installed at the brick discharging end of the frame for cleaning dirt and dust on the surface of the brick blank.

[0010] Another technical solution of the present invention is a control method for discharging a ceramic drying kiln, which is characterized in that it comprises the following steps:

[0011] ⑴ After power is turned on, the ceramic kiln discharge device at the kiln exit starts to operate, and the gear sets on both sides of the double-layer roller table aligned with the kiln exit drive the rollers to rotate. The dried bricks come out of the kiln exit, and are arranged and transported into the double-layer roller table through the rollers according to the setting;

[0012] (2) The elevator induction electric eye senses the bricks, and through the lifting transmission chain, the elevator roller table moves upward to be flush with the upper roller table of the double-layer roller table, and the bricks on the upper roller table move horizontally into the elevator roller table, and the elevator roller table moves downward to be flush with the lifting roller table, and the bricks are transferred to the belt of the lifting roller table pulley. After the bricks are ensured to enter the lifting roller table, the elevator roller table moves downward to be flush with the lower roller table of the double-layer roller table, and the bricks on the lower roller table move horizontally into the elevator roller table, and the elevator roller table moves upward again to the lifting roller table position, and the bricks are transported to the belt of the lifting roller table, and the elevator completes a cycle;

[0013] ⑶ The brick blanks on the belt of the first lifting roller bracket are transported to the exit line rack by the pulley. When all the brick blanks on the belt of the first lifting roller bracket have run, the first lifting roller bracket at a low position rises, and the second lifting roller bracket also rises, and the brick blanks on the pulley of the second roller bracket are lifted up and transported to the pulley position of the first lifting roller bracket through the operation of the roller bar. The first lifting roller bracket descends, and the second lifting roller bracket also descends. The pulley lifts the brick blanks and makes them flush with the exit line rack, and the pulley operates to transport the brick blanks on the belt to the exit line rack. The lifting roller bracket completes a cycle.

[0014] (4) The bricks on the outlet wire rack are cleaned by the dust removal fan and transported to the glaze wire connected to it through the wire rack pulley.

[0015] As a preferred embodiment: after the brick blanks enter the double-layer roller table in step (1), the induction electric eye located in the middle of the sides of the upper roller table and the lower roller table senses the brick blanks, the photoelectric switch of the double-layer roller table is turned on, and the baffle motor is operated to erect the movable baffle, and the brick blanks are neatly arranged on the movable baffle. At the same time, the double-layer roller table cooling fan located at the rear end of the roller table is started to blow air to cool the brick blanks. The movable baffle is erected for a delay of 0.1 to 5 seconds and then moved to lie flat, and the neatly arranged brick blanks enter the elevator.

[0016] As a preferred embodiment: the brick conveying speed of the double-layer roller table is controlled by adjusting the delay time for erecting the movable baffle. When the delay time for erecting the movable baffle is increased, the longer the flat interval of the movable baffle is, the more neatly the bricks are arranged at the position of the movable baffle, and the slower the brick conveying of the double-layer roller table is. On the contrary, when the delay time for erecting the movable baffle is reduced, the flat interval of the movable baffle is shorter, and the brick conveying of the double-layer roller table is faster. The cooling fan of the double-layer roller table adjusts the cooling speed of the bricks by increasing or decreasing the operating speed. The double-layer roller table frame increases rollers according to the number of brick layers discharged from the drying kiln to meet production needs.

[0017] As a preferred embodiment: the servo motor in step (2) adjusts the up and down running speed of the elevator. The faster the servo motor runs, the faster the moving speed of the elevator. Conversely, the slower the servo motor runs, the slower the moving speed of the elevator.

[0018] As a preferred embodiment: the speed of the elevator operation is achieved by adjusting the lifting speed of the elevator roller table, and by adjusting the operating cycle time set for the elevator, that is, a complete process from brick discharge from the double-layer roller table to brick feeding of the elevator roller table and then to the brick blanks being transported from the elevator roller table to the lifting roller table. The faster the lifting speed of the elevator roller table, the shorter the operating cycle time set for the elevator, and the slower the lifting speed of the elevator roller table, the longer the operating cycle time of the elevator.

[0019] As a preferred embodiment: the lifting and lowering of the lifting roller platform in step (3) is realized by the operation of the cylinder arranged on the bracket, and the solenoid valve is driven by the circuit, and the solenoid valve passes the compressed air into the cylinder on the lifting roller platform frame. When the solenoid valve inputs the compressed air through the upper air inlet of the cylinder, the lifting roller platform is lowered downward, and the roller rod of the lifting roller platform also drops accordingly; when the solenoid valve inputs the compressed air through the lower air inlet of the cylinder, the lifting roller platform is lifted upward, and the roller rod of the lifting roller platform also rises accordingly; by adjusting the amount of compressed air input into the cylinder, the rising and falling speed of the lifting roller platform is adjusted, that is, the larger the amount of compressed air, the faster the rising and falling speeds, and the smaller the amount of compressed air, the slower the rising and falling speeds.

[0020] As a preferred embodiment: by adjusting the running speed of the roller bar of the horizontal roller table frame of the lifting roller table, the conveying speed of the brick blanks from the elevator to the export line frame is controlled, that is, the faster the roller bar of the lifting roller table runs, the faster the brick blanks are conveyed from the elevator to the export line frame, and the slower the roller bar of the lifting roller table runs, the slower the brick blanks are conveyed from the elevator to the export line frame.

[0021] As a preference:

[0022] By adjusting the rotation speed of the pulley on the lifting roller bracket, the conveying speed of the bricks from the elevator to the export line rack is controlled: F = K10 × V / 30 × L50

[0023] Where: F--motor running speed, that is, brick conveying speed, unit is Hz;

[0024] V--Linear speed of roller, in m / min;

[0025] K10--reducer ratio;

[0026] 30--motor frequency;

[0027] L50--the circumference of the stick, in meters;

[0028] Where: roller linear speed V = K 1 ×C×L / K 2 ×K 3 ×S,

[0029] Where: V--Roller linear speed, unit is m / min;

[0030] K 1 --Brick clearance coefficient, the coefficient is 1.5;

[0031] C--daily production capacity of the production line, in m 2 / sky;

[0032] L--brick length, in m;

[0033] K 2 --Hour coefficient, the value is 24, the unit is h;

[0034] K 3 --Minute coefficient, the value is 60, the unit is min;

[0035] S--brick area, unit is m 2 ;

[0036] That is, the faster the pulley on the lifting roller bracket rotates, the faster the bricks are transported from the elevator to the export line rack; the slower the pulley on the lifting roller bracket rotates, the slower the bricks are transported from the elevator to the export line rack.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] (1) The present invention adopts a method in which the direction of brick blanks discharged from the drying kiln is perpendicular to that of the elevator, and uses the elevator to transfer the dried brick blanks in batches via a lifting roller table and a horizontal roller table, thereby changing the traditional method of discharging bricks in parallel with the elevator, and realizing the smooth transfer of the dried brick blanks out of the kiln to the production glaze line, which is beneficial to improving product production efficiency.

[0039] (2) The ceramic drying kiln unloading device of the present invention is designed so that the pulley of the lifting roller bracket is parallel to the brick blank conveying direction, and the brick blank conveying direction of the roller bar of the lifting roller bracket is perpendicular to the brick blank conveying direction of the bracket pulley. The lifting roller bracket is lifted and lowered by a cylinder, and the photoelectric switch controls the rotation of the roller bar and the pulley. The pulley and the roller bar cooperate to smoothly convey the brick blanks to the production line without the aid of a 90-degree turning machine. The structure is simple, the space utilization is more compact, the equipment operation footprint is effectively reduced, and the convenience of production management is improved.

[0040] ⑶ By setting cooling fans on the double-layer roller table and the lifting roller table, the bricks discharged from the drying kiln are cooled by blowing air, which can quickly reduce the temperature of the bricks and better meet the requirements of industrial continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the assembly of the ceramic drying kiln discharge device of the present invention;

[0042] Figure 2This is a front view of the structure of the ceramic drying kiln discharge device of the present invention;

[0043] Figure 3 It is a top view of the structure of the ceramic drying kiln discharge device of the present invention;

[0044] Figure 4 It is a side view of the structure of the ceramic drying kiln discharge device of the present invention;

[0045] Figure 5 It is a three-dimensional diagram of the double-layer roller table structure of the present invention;

[0046] Figure 6 is a front view of the double-layer roller table structure of the present invention;

[0047] Figure 7 It is a side view of the double-layer roller table structure of the present invention;

[0048] Figure 8 It is a three-dimensional diagram of the structure of the elevator of the present invention;

[0049] Fig. 9 is a front view of the structure of the elevator of the present invention;

[0050] Fig.10 is a side view of the structure of the elevator of the present invention;

[0051] Fig.11 It is a three-dimensional diagram of the lifting roller table structure of the present invention;

[0052] Fig.12 is a front view of the lifting roller table structure of the present invention;

[0053] Fig.13 It is a side view of the lifting roller table structure of the present invention;

[0054] Fig.14 It is a three-dimensional diagram of the export wire rack structure of the present invention.

[0055] Main component symbols:

[0056] Double roller table 1 Double layer roller table frame 11 Upper roller table 12 Lower roller table 13 Baffle motor 14 Active baffle 15 Induction electric eye 16 Double roller cooling fan 17 Gear set 18 Roller table roller rod 19 Hoist 2 Lifting machine frame 21 Elevator roller table 22 Servo motor 23 Lifting transmission chain 24 Counterweight 25 Hoist induction electric eye 26 Lifting roller table 3 Lifting roller table frame 31 Cylinder 32 First lifting roller platform 33 Second lifting roller table 34 Cooling fan 35 Lifting roller table induction electric eye 36 Pulley 37 Bracket 38 Export wire rack 4 Rack 41 Export wire rack induction electric eye 42 Wire rack pulley 43 Dust removal fan 44 DETAILED DESCRIPTION

[0057] The present invention will be further described below in conjunction with the accompanying drawings:

[0058] See also Figure 1 to Figure 4 As shown, the ceramic drying kiln discharge device is installed and connected to the drying kiln outlet, and is composed of a double-layer roller table 1, a hoist 2, a lifting roller table 3 and an outlet wire rack 4 connected in sequence;

[0059] See also Figure 5-7As shown, the double-layer roller table 1 is composed of a double-layer roller table frame 11, an upper roller table 12, a lower roller table 13, a baffle motor 14, a movable baffle 15, an induction electric eye 16, a double-layer roller table cooling fan 17, a double-layer roller table cooling fan 17, a gear set 18, and a roller table roller rod 19. The double-layer roller table frame 11 is provided with an upper roller table 12 and a lower roller table 13. The upper roller table 12 and the lower roller table 13 have the same structure. The baffle motor 14 is respectively installed on the side of the upper roller table 11 and the lower roller table 12 and is connected to the movable baffle 15. The induction electric eye 16, the movable baffle 15 and the double-layer roller table cooling fan 17 are respectively arranged on the middle, middle rear and rear ends of the sides of the upper roller table 12 and the lower roller table 13. The gear set 18 is arranged on both sides of the upper roller table 12 and the lower roller table 13. The roller table roller rod 19 is flatly connected to the roller table through the gear sets 18 on both sides.

[0060] See also Figure 8 to Figure 10 As shown, the elevator 2 is composed of an elevator frame 21, an elevator roller table 22, a servo motor 23, a lifting transmission chain 24, a counterweight 25, and an elevator induction electric eye 26. The elevator roller table 22 is located in the middle of the elevator frame 21, and the elevator induction electric eye 26 is arranged on the side of the brick feeding end of the elevator roller table 22. The servo motor 23 is installed on the top of the elevator frame 21 and connected to the lifting transmission chain 24. The lifting transmission chain 24 is connected to the counterweights 25 located on both sides of the elevator frame 21, and the counterweights provide pulling force for the lifting of the elevator roller table.

[0061] See also Figure 11 to Figure 13 As shown, the lifting roller platform 3 is composed of a lifting roller platform frame 31, a cylinder 32, a first lifting roller platform 33, a second lifting roller platform 34, a cooling fan 35, a lifting roller platform induction electric eye 36, a pulley 37, and a horizontal roller platform frame 38. The cylinder 32 is respectively arranged on four brackets of the lifting roller platform frame 31, and the first lifting roller platform 33 and the second lifting roller platform 34 are respectively installed side by side on the lifting roller platform frame 31. The first lifting roller platform 33 and the second lifting roller platform 34 have similar structures. The electric eye 36 and the cooling fan 35 are respectively arranged at the brick feeding end and the tail end of the first lifting roller platform and the second lifting roller platform frame. The pulley 37 is arranged on the lifting roller platform 3 through the bracket 38. The lifting roller platform frame 38 is provided with a gear set on both sides. The gear set is provided with a roller bar. The brick conveying direction of the pulley 37 and the roller bar conveying direction of the lifting roller platform 3 are 90 degrees. The solenoid valve is driven by the circuit, and the solenoid valve passes compressed air into the cylinder 32 on the four brackets to realize the lifting action of the lifting roller platform 3 to transport the bricks.

[0062] See also Fig.14 As shown, the outlet wire rack 4 is composed of a frame 41 and a wire rack pulley 43. The wire rack pulley 43 is arranged on the frame 41. The brick inlet end of the frame 41 is equipped with an outlet wire rack induction electric eye 42, and the brick outlet end is equipped with a dust removal fan 44 for cleaning dirt and dust on the surface of the brick blank.

[0063] 2. Control Methods

[0064] The process of bricks coming out of the ceramic drying kiln:

[0065] ⑴ After power is turned on, the ceramic kiln discharge device at the kiln exit starts to operate, and the gear sets on both sides of the double-layer roller table aligned with the kiln exit drive the rollers to rotate. The dried bricks come out of the kiln exit, and are arranged and transported into the double-layer roller table through the rollers according to the setting;

[0066] (2) The elevator induction electric eye senses the bricks, and through the lifting transmission chain, the elevator roller table moves upward to be flush with the upper roller table of the double-layer roller table, and the bricks on the upper roller table move horizontally into the elevator roller table, and the elevator roller table moves downward to be flush with the lifting roller table, and the bricks are transferred to the belt of the lifting roller table pulley. After the bricks are ensured to enter the lifting roller table, the elevator roller table moves downward to be flush with the lower roller table of the double-layer roller table, and the bricks on the lower roller table move horizontally into the elevator roller table, and the elevator roller table moves upward again to the lifting roller table position, and the bricks are transported to the belt of the lifting roller table, and the elevator completes a cycle;

[0067] ⑶ The brick blanks on the belt of the first lifting roller bracket are transported to the exit line rack by the pulley. When all the brick blanks on the belt of the first lifting roller bracket have run, the first lifting roller bracket at a low position rises, and the second lifting roller bracket also rises, and the brick blanks on the pulley of the second roller bracket are lifted up and transported to the pulley position of the first lifting roller bracket through the operation of the roller bar. The first lifting roller bracket descends, and the second lifting roller bracket also descends. The pulley lifts the brick blanks and makes them flush with the exit line rack, and the pulley operates to transport the brick blanks on the belt to the exit line rack. The lifting roller bracket completes a cycle.

[0068] (4) The bricks on the outlet wire rack are cleaned by the dust removal fan and transported to the glaze wire connected to it through the wire rack pulley.

[0069] In the step (1), after the brick blanks enter the double-layer roller table, the induction electric eyes located in the middle of the sides of the upper roller table and the lower roller table sense the brick blanks, the photoelectric switch of the double-layer roller table is turned on, and the baffle motor is operated to erect the movable baffle, and the brick blanks are neatly arranged on the movable baffle. At the same time, the double-layer roller table cooling fan located at the rear end of the roller table is started to blow air to cool the brick blanks. The movable baffle is erected for a delay of 0.1-5 seconds and then moved to a flat position, and the neatly arranged brick blanks enter the elevator.

[0070] The brick conveying speed of the double-layer roller table can be controlled by adjusting the delay time for raising the movable baffle. If the delay time for raising the movable baffle is increased, the flat interval of the movable baffle will be longer, the bricks will be more neatly arranged at the position of the movable baffle, and the brick conveying speed of the double-layer roller table will be slower. On the contrary, if the delay time for raising the movable baffle is reduced, the flat interval of the movable baffle will be shorter, and the brick conveying speed of the double-layer roller table will be faster.

[0071] The conveying speed of double-layer roller table brick blanks can be controlled by adjusting the rotation speed of the roller table roller rod. The faster the rotation speed of the roller table roller rod is, the shorter the interval between bricks placed on the movable baffle is, and the faster the speed of brick blank conveying is. Conversely, the slower the rotation speed of the roller table roller rod is, the longer the interval between bricks placed on the movable baffle is, and the slower the speed of brick blank conveying is.

[0072] The double-layer roller cooling fan can adjust the cooling speed of the bricks by increasing or decreasing the operating speed.

[0073] The double-layer roller table frame can add roller tables according to the number of brick layers produced by the drying kiln to meet production needs.

[0074] The servo motor in step (2) can adjust the up and down running speed of the elevator. The faster the servo motor runs, the faster the movement speed of the elevator. Conversely, the slower the servo motor runs, the slower the movement speed of the elevator.

[0075] The speed of the elevator can be achieved by adjusting the lifting speed of the elevator roller table, that is, by adjusting the time of one operating cycle of the elevator, that is, a complete process from the brick discharge from the double-layer roller table to the brick feeding of the elevator roller table and then to the brick blanks transported from the elevator roller table to the lifting roller table. The faster the lifting speed of the elevator roller table, the shorter the elevator operating cycle time, and the slower the lifting speed of the elevator roller table, the longer the elevator operating cycle time.

[0076] The lifting and lowering of the lifting roller platform in step (3) is realized by the operation of the cylinder arranged on the bracket. The solenoid valve is driven by the circuit, and the solenoid valve passes compressed air into the cylinder on the four brackets. When the solenoid valve inputs the compressed air through the upper air inlet of the cylinder, the lifting roller platform is lowered, and the roller rod on the lifting roller platform also drops. When the solenoid valve inputs the compressed air through the lower air inlet of the cylinder, the lifting roller platform is lifted upward, and the roller rod on the lifting roller platform also rises accordingly.

[0077] By adjusting the compressed air flow rate of the input cylinder, the rising and falling speed of the lifting roller table can be adjusted, that is, the larger the compressed air flow rate, the faster the rising and falling speed, and the smaller the compressed air flow rate, the slower the rising and falling speed.

[0078] By adjusting the rotation speed of the pulley on the lifting roller bracket, the conveying speed of the bricks from the elevator to the export line rack is controlled: F = K10 × V / 30 × L50

[0079] Where: F--motor running speed, that is, brick conveying speed, unit is Hz;

[0080] V--Linear speed of roller, in m / min;

[0081] K10--reducer ratio;

[0082] 30--motor frequency;

[0083] L50--the circumference of the stick, in meters;

[0084] Where: roller linear speed V = K 1 ×C×L / K 2 ×K 3 ×S,

[0085] Where: V--Roller linear speed, unit is m / min;

[0086] K 1 --Brick clearance coefficient, the coefficient is 1.5;

[0087] C--daily production capacity of the production line, in m 2 / sky;

[0088] L--brick length, in m;

[0089] K 2 --Hour coefficient, the value is 24, the unit is h;

[0090] K 3 --Minute coefficient, the value is 60, the unit is min;

[0091] S--brick area, unit is m 2 ;

[0092] That is, the faster the pulley on the lifting roller bracket rotates, the faster the bricks are transported from the elevator to the export line rack; the slower the pulley on the lifting roller bracket rotates, the slower the bricks are transported from the elevator to the export line rack.

[0093] The above description is only the preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A ceramic drying kiln discharge device, It is characterized in that It is composed of a double-layer roller table, an elevator, a lifting roller table and an exit line frame connected in sequence; the direction of the drying kiln brick blanks out of the kiln is perpendicular to the elevator, and the elevator is used to transfer the dried brick blanks in batches through the lifting roller table; the lifting roller table is composed of a frame, cylinders respectively arranged on the lifting roller table frame, a first lifting roller table and a second lifting roller table installed side by side on the frame, lifting roller table induction electric eyes and cooling fans respectively arranged on the brick blank feeding end and tail end of the first lifting roller table and the second lifting roller table frame, gear sets and roller rods respectively arranged on both sides of the first lifting roller table and the second lifting roller table frame, and a pulley arranged on the lifting roller table through a bracket; the brick blank conveying direction of the roller rod is 90 degrees to the conveying direction of the pulley of the bracket, and the solenoid valve is driven by the circuit, and the solenoid valve passes compressed air into the cylinder on the lifting roller table frame to realize the lifting action of the lifting roller table to transport the brick blanks, and the double-layer roller table includes an upper roller table and a lower roller table arranged on the frame; When working, the elevator moves upward until it is flush with the upper roller table of the double-layer roller table, the bricks on the upper roller table move horizontally into the elevator, the elevator moves downward to be flush with the lifting roller table, and the bricks are conveyed to the belt of the lifting roller table pulley. After the bricks are ensured to enter the lifting roller table, the elevator moves downward to be flush with the lower roller table of the double-layer roller table, and the bricks on the lower roller table move horizontally into the elevator, the elevator moves upward again to the lifting roller table position, and the bricks are conveyed to the belt of the lifting roller table bracket, and the elevator completes a cycle; the first lifting roller bracket belt The bricks on the belt are driven by the pulley to be transported to the exit line rack. When all the bricks on the belt of the first lifting roller bracket have run, the first lifting roller at a low position rises, and the second lifting roller also rises, and the bricks on the pulley of the second roller bracket are lifted up and transported to the pulley position of the first lifting roller bracket through the operation of the roller bar. The first lifting roller drops, and the second lifting roller also drops. The pulley lifts the bricks and makes them flush with the exit line rack. The pulley operates to transport the bricks on the belt to the exit line rack, and the lifting roller completes a cycle.

2. The ceramic drying kiln discharge device according to claim 1, It is characterized in that The double-layer roller table is composed of a frame, baffle motors respectively installed on the sides of the upper roller table and the lower roller table and connected to the movable baffle, induction electric eyes respectively arranged in the middle, middle rear and rear ends of the sides of the upper roller table and the lower roller table, movable baffles and double-layer roller table cooling fans, gear sets arranged on both sides of the upper roller table and the lower roller table, and roller table roller rods flatly connected to the upper roller table and the lower roller table through the gear sets on both sides.

3. The ceramic drying kiln discharge device according to claim 2, It is characterized in that The elevator consists of a frame, an elevator roller table arranged in the middle of the elevator frame, a servo motor installed on the top of the frame and connected to the lifting transmission chain, a lifting transmission chain connected to the counterweight blocks on both sides of the elevator frame, and an elevator induction electric eye arranged on the side of the brick feeding end of the elevator roller table. The counterweight block provides pulling force for the lifting and lowering of the elevator roller table.

4. The ceramic drying kiln discharge device according to claim 3, It is characterized in that The export wire rack is composed of a frame, a wire rack pulley arranged on the frame, an export wire rack induction electric eye installed at the brick feeding end of the frame, and a dust removal fan installed at the brick discharging end of the frame for cleaning dirt and dust on the surface of the brick blank.

5. A kiln discharge control method for a ceramic drying kiln discharge device according to any one of claims 2 to 4, It is characterized in that The following steps are involved: ⑴ After power is turned on, the ceramic kiln discharge device at the kiln exit starts to operate, and the gear sets on both sides of the double-layer roller table aligned with the kiln exit drive the rollers to rotate. The dried bricks come out of the kiln exit, and are arranged and transported into the double-layer roller table through the rollers according to the setting; (2) The elevator induction electric eye senses the bricks, and through the lifting transmission chain, the elevator roller table moves upward to be flush with the upper roller table of the double-layer roller table, and the bricks on the upper roller table move horizontally into the elevator roller table, and the elevator roller table moves downward to be flush with the lifting roller table, and the bricks are transferred to the belt of the lifting roller table pulley. After the bricks are ensured to enter the lifting roller table, the elevator roller table moves downward to be flush with the lower roller table of the double-layer roller table, and the bricks on the lower roller table move horizontally into the elevator roller table, and the elevator roller table moves upward again to the lifting roller table position, and the bricks are transported to the belt of the lifting roller table bracket, and the elevator completes a cycle; ⑶ The bricks on the belt of the first lifting roller support are driven by the pulley to be transported to the exit line frame. When all the bricks on the belt of the first lifting roller support have been moved, the first lifting roller at a low position rises, and the second lifting roller also rises, and the bricks on the pulley of the second roller support are lifted up and transported to the pulley position of the first lifting roller support through the operation of the roller bar. The first lifting roller descends, and the second lifting roller also descends. The pulley lifts the bricks and flushes them with the exit line frame. The pulley operates to transport the bricks on the belt to the exit line frame, and the lifting roller completes a cycle; (4) The bricks on the outlet wire rack are cleaned by the dust removal fan and transported to the glaze wire connected to it through the wire rack pulley.

6. The kiln discharge control method according to claim 5, It is characterized in that In the step (1), after the brick blanks enter the double-layer roller table, the induction electric eye located in the middle of the side of the upper roller table and the lower roller table senses the brick blanks, the photoelectric switch of the double-layer roller table is turned on, and the baffle motor is operated to erect the movable baffle, and the brick blanks are neatly arranged at the movable baffle. At the same time, the double-layer roller table cooling fan located at the rear end of the roller table is started to blow air to cool the brick blanks. The movable baffle is erected for a delay of 0.1 to 5 seconds and then moved to a flat position, and the neatly arranged brick blanks enter the elevator.

7. The kiln discharge control method according to claim 6, It is characterized in that The brick conveying speed of the double-layer roller table is controlled by adjusting the delay time for erecting the movable baffle. If the delay time for erecting the movable baffle is increased, the flat interval of the movable baffle is longer, the bricks are arranged more neatly at the position of the movable baffle, and the brick conveying speed of the double-layer roller table is slower. On the contrary, if the delay time for erecting the movable baffle is reduced, the flat interval of the movable baffle is shorter, and the brick conveying speed of the double-layer roller table is faster. The cooling fan of the double-layer roller table adjusts the cooling speed of the bricks by increasing or decreasing the operating speed. The double-layer roller table frame increases rollers according to the number of brick layers discharged from the drying kiln to meet production needs.

8. The kiln discharge control method according to claim 5, It is characterized in that The servo motor in step (2) adjusts the up and down running speed of the elevator. The faster the servo motor runs, the faster the movement speed of the elevator. Conversely, the slower the servo motor runs, the slower the movement speed of the elevator.

9. The kiln discharge control method according to claim 8, It is characterized in that The speed of the elevator is achieved by adjusting the lifting speed of the elevator roller table, and by adjusting the operating cycle time set for the elevator, that is, a complete process from brick discharge from the double-layer roller table to brick feeding of the elevator roller table and then to the brick blanks transported from the elevator roller table to the lifting roller table. The faster the lifting speed of the elevator roller table, the shorter the operating cycle time set for the elevator, and the slower the lifting speed of the elevator roller table, the longer the operating cycle time of the elevator.

10. The kiln discharge control method according to claim 5, It is characterized in that The lifting and lowering of the lifting roller platform in step (3) is realized by the operation of the cylinder arranged on the frame, and the solenoid valve is driven by the circuit, and the solenoid valve passes the compressed air into the cylinder on the lifting roller platform frame. When the solenoid valve inputs the compressed air through the upper air inlet of the cylinder, the lifting roller platform is lowered downward, and the roller bar on the lifting roller platform also drops accordingly. When the solenoid valve inputs the compressed air through the lower air inlet of the cylinder, the lifting roller platform is lifted upward, and the roller bar on the lifting roller platform also rises accordingly. By adjusting the compressed air flow rate of the input cylinder, the rising and falling speed of the lifting roller table can be adjusted. That is, the larger the compressed air flow rate, the faster the rising and falling speed, and the smaller the compressed air flow rate, the slower the rising and falling speed.

11. The kiln discharge control method according to claim 10, It is characterized in that By adjusting the running speed of the rollers of the lifting roller table, the conveying speed of the bricks from the elevator to the export line rack is controlled. That is, the faster the rollers of the lifting roller table run, the faster the bricks are conveyed from the elevator to the export line rack; the slower the rollers of the lifting roller table run, the slower the bricks are conveyed from the elevator to the export line rack.

12. The kiln discharge control method according to claim 10, It is characterized in that By adjusting the rotation speed of the pulley on the lifting roller bracket, the conveying speed of the bricks from the elevator to the export line rack is controlled: F=K10×V / 30×L50 Where: F--motor running speed, that is, brick conveying speed, unit is Hz; V--Linear speed of roller, in m / min; K10--reducer ratio; 30--motor frequency; L50--the circumference of the stick, in meters; Where: roller linear velocity V = K 1 ×C×L / K 2 ×K 3 ×S, Where: V--Roller linear speed, unit is m / min; K 1 --Brick clearance coefficient, the coefficient is 1.5; C--daily production capacity of the production line, in m 2 / sky; L--brick length, in m; K 2 --Hour coefficient, the value is 24, the unit is h; K 3 --Minute coefficient, the value is 60, the unit is min; S - Brick blank area, unit: m 2 ; That is, the faster the pulley on the lifting roller bracket rotates, the faster the bricks are transported from the elevator to the export line rack; the slower the pulley on the lifting roller bracket rotates, the slower the bricks are transported from the elevator to the export line rack.

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