Double-door tunnel type drying kiln

Abstract

The utility model belongs to the technical field of double-door tunnel type drying kilns, and discloses a double-door tunnel type drying kiln, which is characterized in that a smoke suction cylinder is fixed in the middle of the upper part of the drying kiln close to the left end, the bottom of the smoke suction cylinder is communicated with the interior of the drying kiln, and the upper part of the smoke suction cylinder is fixedly communicated with the inlet end of a smoke treatment system; the lifting doors are divided into an entrance lifting door, an exit lifting door and a blocking lifting door; the entrance lifting door is fixedly arranged on the right side of the entrance, the exit lifting door is fixedly arranged at the left end of the exit, and the blocking lifting door is fixedly arranged on the right side of the exit lifting door. The kiln car is installed at the bottom of the drying kiln in a matched mode, and the kiln car walks and moves in the drying kiln under traction cooperation of the traction mechanism. The traction mechanism is fixedly arranged in the ground at the bottom of the drying kiln. The tunnel type drying kiln has the beneficial effects that waste gas generated during drying of the kiln car is pumped out and purified, so that the waste gas in the tunnel type drying kiln can be effectively prevented from being directly discharged to cause environmental pollution.

Description

TECHNICAL FIELD

[0001] The utility model belongs to double -open -door tunnel type drying kiln technical field, concretely relates to a double -open -door tunnel type drying kiln. BACKGROUND

[0002] Tunnel type drying kiln is the main equipment of drying firebrick. In prior art, the main structure of tunnel type drying kiln includes kiln body, kiln door, traction mechanism and kiln car, and the kiln door is used to close the two end openings of the kiln body, so that the firebrick forms a closed drying space. The traction mechanism is used to pull the kiln car to move linearly in the kiln body, so that a plurality of kiln cars can be dried in batches in the tunnel type drying kiln at the same time. Since the tunnel type drying kiln, when the firebrick stacked on the kiln car is dried, a certain drying temperature is required, and in a high temperature environment, the driving motor of the traction mechanism needs to be arranged outside the kiln body to meet the working temperature of the motor.

[0003] The conventional tunnel type drying kiln usually sets two kiln doors at the front and rear ends of the kiln body, one kiln door is used as the entrance of the kiln car to convey the kiln car with the stacked firebrick into the kiln body, and the other kiln door is used as the exit to pull the kiln car out of the kiln body by the traction mechanism, so as to realize the continuous conveying of the kiln car. Due to the strict environmental protection policy, waste gas will be generated during the drying process of the firebrick, and when the kiln car comes out of the exit of the kiln body, the exit kiln door needs to be lifted, at which time the waste gas generated in the kiln body will be directly discharged into the atmosphere through the kiln body exit, thereby polluting the environment. Therefore, it is obviously impossible to meet the environmental protection process requirements by setting a single kiln door at the exit end of the kiln body. The main technical problem of the current tunnel type drying kiln is that the single kiln door at the exit end of the kiln body will cause the direct discharge of waste gas in the kiln body, polluting the air. Based on the above technical problems existing in the prior art, the inventor has developed a double -open -door tunnel type drying kiln, which can well solve the above technical problems existing in the prior art. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses in order to solve above -mentioned technical problem, provide a kind of double -open -door tunnel type drying kiln, its structure is simple, design scientific and reasonable, can effectively prevent the direct discharge of waste gas in tunnel type drying kiln, cause the pollution of environment.

[0005] The utility model discloses a technical scheme adopted is: a kind of double door tunnel type drying kiln, including drying kiln 1, entrance 2 and outlet 3, drying kiln 1 is internally built with hollow cuboid of refractory material, entrance 2 is set in the right end of the drying kiln 1, outlet 3 is set in the left end of the drying kiln 1;Power distribution cabinet 4 vertically fixedly arranged in the left end front side position of the drying kiln 1, interactive system 5 is fixedly arranged in the front side upper portion position of the power distribution cabinet 4;Smoke extraction cylinder 6 is fixed in the left end upper portion intermediate position of the drying kiln 1, the bottom of smoke extraction cylinder 6 is communicated with the inside of the drying kiln 1, the upper portion of smoke extraction cylinder 6 is fixedly communicated with the import end of flue gas treatment system;Lifting door 7 is divided into entrance lifting door 8, outlet lifting door 9 and barrier lifting door 10, entrance lifting door 8, outlet lifting door 9 and barrier lifting door 10 are same structure;The entrance lifting door 8 is fixedly arranged in the right side position of the entrance 2, the outlet lifting door 9 is fixedly arranged in the left end position of the outlet 3, barrier lifting door 10 is fixedly arranged in the right side position of the outlet lifting door 9;Kiln car 11 is cooperatively installed in the bottom of the drying kiln 1, under the traction cooperation of traction mechanism 12, realize walking movement in the inside of the drying kiln 1;The traction mechanism 12 is fixedly arranged in the ground of the bottom of the drying kiln 1.

[0006] The drying kiln 1 includes kiln body 101, the bottom of kiln body 101 is in contact with the ground, sealing groove 102 is symmetrically arranged in the vicinity of the lower portion of kiln body 101, and sealing groove 102 penetrates kiln body 101 from left to right; Track groove 103 is symmetrically arranged in the bottom position of kiln body 101, and track groove 103 penetrates kiln body 101 from left to right; Installation groove 104 is arranged in the vicinity of the left end of kiln body 101, installation groove 104 is a square opening that penetrates kiln body 101 longitudinally, and installation groove 104 is used for installing barrier lifting door 10.

[0007] The power distribution cabinet 4 provides power for the driving motor of the traction mechanism 12, and also provides power for the display screen 53, the delay control module 54 and the PLC control module 55 of the interactive system 5.

[0008] The interactive system 5 includes support rod 51, which is a bent L-shaped, one end of support rod 51 is fixedly connected with the shell of power distribution cabinet 4, and the other end is fixedly connected with the upper middle position of shell 52; The display screen 53 is fixedly arranged in the left side upper middle position of shell 52, the delay control module 54 is fixedly arranged on the rear side of the lower portion of the display screen 53, and the PLC control module 55 is fixedly arranged on the front side position of the delay control module 54; The delay control module 54 is connected with the PLC control module 55 through a signal line, and the PLC control module 55 is fixedly connected with the display screen 53.

[0009] The lifting door 7 comprises a lifting frame 71, the lifting frame 71 is inverted U-shaped, guide grooves 72 are symmetrically arranged on the inner side of the lifting frame 71, a mounting plate 73 is fixedly arranged at the upper middle position of the lifting frame 71, a hydraulic cylinder 74 is fixedly installed on the mounting plate 73, the telescopic rod of the hydraulic cylinder 74 penetrates through the mounting plate 73 and is fixed at the upper middle position of a door body 76; an auxiliary lifting mechanism 75 is fixedly arranged at the front and rear positions of the lifting frame 71; four lifting guide wheels 77 are arranged, two as a group, one group is symmetrically arranged above and below at the front side of the door body 76, and the other group is symmetrically arranged above and below at the right side of the door body 76; the lifting guide wheels 77 on both sides of the door body 76 are slidingly installed in the symmetrically arranged guide grooves 72, and the upper part of the door body 76 is fixedly connected with the inner side of the auxiliary lifting mechanism 75; the hydraulic cylinder 74 is fixedly communicated with the electromagnetic control valve of the hydraulic station through a hydraulic pipe, and the electromagnetic control valve of the hydraulic station is fixedly connected with the delay control module 54 and the PLC control module.

[0010] The auxiliary lifting mechanism 75 comprises a counterweight 751, the counterweight 751 is cuboid-shaped, one end of a chain 752 is fixed with the upper center of the counterweight 751; four first shaft seats 753 are arranged, two as a group, one group is symmetrically arranged on the upper end of the lifting frame 71, and the other group is symmetrically arranged on the inner side of the upper part of the lifting frame 71; a rotating shaft one 754 is transversely installed and fixed on the two first shaft seats 753 symmetrically arranged on the upper end of the lifting frame 71, and a rotating shaft two 755 is transversely installed and fixed on the two first shaft seats 753 arranged on the inner side of the upper part of the lifting frame 71; a gear one 756 is fixed at the middle position of the rotating shaft one 754, and a gear two 757 is fixed at the middle position of the rotating shaft two 755; the other end of the chain 752 is wound and engaged on the gear one 756 and the gear two 757 from the upper parts of the gear one 756 and the gear two 757, and extends to the upper part of the door body 76 and is fixed with the upper part of the door body 76.

[0011] The lifting guide wheel 77 comprises a fixed plate 771, the fixed plate 771 is cuboid-shaped, rotating shaft seats 772 are symmetrically fixed at the two ends of the fixed plate 771, a rotating shaft 773 is fixedly installed on the symmetrically arranged rotating shaft seats 772, and a roller 774 is fixed on the rotating shaft 773.

[0012] The kiln car 11 comprises a kiln car body 111, four roller groups are arranged at the bottom corners of the kiln car body 111, a convex plate 113 is longitudinally fixedly arranged at the middle position of the bottom of the kiln car body 111, and sealing fitting grooves 114 are symmetrically arranged on both sides of the bottom of the kiln car body 111; the sealing fitting grooves 114 of the kiln car 11 are aligned with the sealing grooves 102 of the drying kiln 1.

[0013] The traction mechanism 12 comprises a traction groove 121 fixed in a groove on the ground, the traction groove 121 is a hollow shape with an upper part welded by a steel plate, two open ends and a closed lower part, and the traction groove 121 is higher than the ground; an upper T-shaped groove 122 is arranged at the upper part of the traction groove 121, and a lower T-shaped groove 123 is arranged at the bottom of the traction groove 121, the upper T-shaped groove 122 and the lower T-shaped groove 123 are arranged through the traction groove 121; a driving double gear 124 is arranged at the left end of the traction groove 121, and a driven double gear 125 is arranged at the right end of the traction groove 121, the centers of the driving double gear 124 and the driven double gear 125 are arranged with a spacing from the left or right end surface of the traction groove 121; a double chain 126 is correspondingly sleeved on the driving double gear 124 and the driven double gear 125; and movable hooks 127 are uniformly fixed and installed on the outer side surface of the double chain 126.

[0014] A driving shaft is arranged through the center of the driving double gear 124, the driving shaft is fixedly connected with the power output shaft of the driving motor by extending to the outside of the kiln body 101 through the ground; a driven shaft is arranged through the center of the driven double gear 125, and shaft seats are arranged at the front and rear ends of the driven shaft, and the shaft seats are fixedly installed on the both sides of the groove on the ground.

[0015] The movable hook 127 comprises a square frame 1271, a U-shaped mounting groove is arranged at the bottom of the square frame 1271, four second shaft seats 1272 are arranged, two front and rear symmetrical ones form a group, one group is fixedly arranged at the left end of the square frame 1271, and the other group is fixedly arranged at the right end of the square frame 1271; a convex shaft 1273 is arranged in the inner ring of the bearing of the four second shaft seats 1272, and a rolling wheel 1274 is fixedly arranged at the outer end of the convex shaft 1273; support plates 1275 are fixedly arranged at the upper part of the square frame 1271 in a front and rear symmetrical mode, movable shafts 1276 are arranged at the upper part of the right side of the front and rear symmetrical support plates 1275, protruding blocks 1277 are fixedly arranged on the movable shafts 1276, the protruding blocks 1277 are triangular structures, and baffles 1278 are fixedly arranged at the bottom of the rear end of the support plates 1275.

[0016] The working process of the double-door tunnel type drying kiln is as follows: firstly, the rotation speed of the traction mechanism 12 driving motor is determined to determine the rotation speed of the double chain 126 and the movable hook 127 (finally determine the moving distance of the kiln car 11 in the drying kiln 1), then the moving distance of the kiln car 11 is set in the PLC control module 55 in the interactive system 5 through the parameter setting module of the display screen 53, and the delay control time is set in the delay control module 54 through the parameter setting module of the display screen 53; at the same time, the flue gas treatment system is in a working state by clicking the flue gas treatment system start key on the display screen 53.

[0017] Step one, kiln car loading drying: when the need to send the kiln car 11 stacked well firebrick blank to the inside of the drying kiln 1, first click on the display screen 53 on the entrance of the lifting door 8 start button, the entrance of the lifting door 8 hydraulic cylinder 74 retraction action, the telescopic rod of hydraulic cylinder 74 pull door body 76 upward movement, door body 76 upward movement in the process of lifting guide wheel 77 roller 774 along the guide groove 72 upward synchronous movement, at this time the left and right side of the auxiliary lifting mechanism 75 counterweight body due to its own gravity, through the chain 752, gear one 756, gear two 757 meshing transmission and the telescopic rod of hydraulic cylinder 74 pulling force action, pull door body 76 vertically upward, when the telescopic rod of hydraulic cylinder 74 retracts to the limit stroke, the door body 76 of the entrance of the lifting door 8 away from the drying kiln 1 bottom; then the kiln car 11 stacked well firebrick blank under the action of the pushing mechanism of external force, make the sealing groove 114 of the kiln car 11 and the sealing groove 102 of the drying kiln 1 alignment, at this time click on the display screen 53 on the traction mechanism 12 start key, PLC control module 55 to the drive motor of traction mechanism 12 sends the start control instruction, the drive motor will rotate power transmission through the drive shaft to the driving double gear 124, the rotation of the driving double gear 124 through the double chain 126 driven double gear 125 rotation, at the same time drive double chain 126 on the rotating hook 127, when the rotating hook 127 rotation moves to the first kiln car 11 bottom position, the rotating hook 127 triangular protruding block 1277 and the protruding plate 113 of the kiln car 11 bottom contact, at this time the protruding block 1277 in the rotating action of the movable shaft 1276, the rear end of the protruding block 1277 and the baffle 1278 top, with the rotating hook 127 continue to rotate, pull the first kiln car 11 to the left end of the drying kiln 1, after the first kiln car 11, continue to pull the second kiln car to the inside of the drying kiln 1, repeat the above traction loading kiln car 11 action until the first kiln car 11 traction to the inside of the drying kiln 1 (drying kiln 1 placed in the number of kiln car 11, according to the size of the kiln car 11 and the length of the drying kiln 1 inside the size is determined); then click on the display screen 53 on the start button of the closing entrance of the lifting door 8, the entrance of the lifting door 8 repeat the above opening action opposite operation, that is, the closing of the entrance of the lifting door 8; finally, the drying kiln 1 on the kiln car 11 of firebrick blank drying.

[0018] Step two, the kiln car out of kiln process: when all the kiln car 11 of the drying kiln 1 of the firebrick green body drying is completed, needs to remove the kiln car 11 from the drying kiln 1, first click the start key of the traction mechanism 12 and the start key of the blocking lift door 10 on the display screen 53, the driving double gear 124 of the traction mechanism 12 is rotated under the driving of the driving motor and the driving shaft, the rotation power of the driving double gear 124 drives the driven double gear 125 to rotate through the double chain 126, and the double chain 126 is rotated to drive the movable hook 127 to rotate at a constant speed, at this time, the movable hook 127 at the left end of the traction mechanism 12 first pulls the kiln car 11 at the right side of the blocking lift door 10 to move, and the PLC control module 55 sends the opening control instruction to the blocking lift door 10 (the blocking lift door 10 repeats the same action process of the entrance lift door 8 in the above-mentioned step one), so that the blocking lift door 10 can be opened, along with the continuous movement of the kiln car 11 to the left end, the delay control module 54 records the opening time of the blocking lift door 10, delays for 30 seconds and sends the control signal for closing the blocking lift door 10 to the PLC control module 55, the PLC control module 55 sends the closing control instruction to the blocking lift door 10, and the blocking lift door 10 repeats the closing action of the entrance lift door 8 in the above-mentioned step one, so that the blocking lift door 10 can be closed, in the movement process of the kiln car 11, the flue gas treatment system draws the flue gas formed on the kiln car 11 due to drying through the smoke extraction pipe 6 and purifies the flue gas; along with the continuous movement of the kiln car 11 to the left, when reaching the maximum distance set by the PLC control module 55, the PLC control module 55 sends the opening control signal to the exit lift door 9, and the exit lift door 9 is opened, along with the continuous movement of the kiln car 11 to the left end, the delay control module 54 delays for 30 seconds and sends the control signal for closing the exit lift door 9 to the PLC control module 55, the PLC control module 55 sends the closing control instruction to the exit lift door 9, and the exit lift door 9 is closed, at this time, the kiln car 11 is pulled out of the drying kiln 1, and the kiln car 11 can be removed one by one according to the out-of-kiln purification treatment action of the above-mentioned first kiln car 11.

[0019] The tunnel type drying kiln has the advantages that through the manual and automatic control cooperation between the display screen, the delay control module and the PLC control module, the kiln car can be blocked between the exit lift door and the blocking lift door under the traction of the traction mechanism, and the waste gas generated during the drying of the kiln car can be drawn out and purified by the smoke extraction pipe and the flue gas treatment system, so that the direct discharge of the waste gas in the tunnel type drying kiln can be effectively prevented, and the environmental pollution can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the utility model;

[0021] Figure 2 It is the utility model Figure 1Enlarged view of the bottom left;

[0022] Figure 3 This is a partial cross-sectional view of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the lifting door of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the door body and the lifting guide wheel of this utility model;

[0025] Figure 6 This is an enlarged view of the lifting guide wheel of this utility model;

[0026] Figure 7 This is an enlarged view of the end face of the traction mechanism of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the movable hook of this utility model;

[0028] The diagram is labeled as follows: 1. Drying kiln; 101. Kiln body; 102. Sealing groove; 103. Track groove; 104. Mounting groove; 2. Inlet; 3. Outlet; 4. Power distribution cabinet; 5. Interactive system; 51. Support rod; 52. Housing; 53. Display screen; 54. Delay control module; 55. PLC control module; 6. Smoke extractor; 7. Lifting door; 71. Lifting frame; 72. Guide groove; 73. Mounting plate; 74. Hydraulic cylinder; 75. Auxiliary lifting mechanism; 751. Counterweight; 752. Chain; 753. First shaft seat; 754. Rotating shaft one; 755. Rotating shaft two; 756. Gear one; 757. Gear two; 76. Door body; 77. Lifting guide wheel; 771. 772. Fixed plate, 773. Rotating shaft seat, 774. Rotating shaft, 775. Roller, 8. Inlet lifting door, 9. Outlet lifting door, 10. Barrier lifting door, 11. Kiln car, 111. Kiln car body, 112. Roller assembly, 113. Protruding plate, 114. Sealing groove, 12. Traction mechanism, 121. Traction groove, 122. Upper T-slot, 123. Lower T-slot, 124. Drive double gear, 125. Driven double gear, 126. Double chain, 127. Movable hook, 1271. Square frame, 1272. Second shaft seat, 1273. Protruding shaft, 1274. Rolling wheel, 1275. Support plate, 1276. Movable shaft, 1277. Protrusion, 1278. Baffle. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides a double-door tunnel-type drying kiln:

[0031] like Figure 1As shown, the power distribution cabinet 4 is vertically fixedly arranged at the left end front side of the drying kiln 1, and the interactive system 5 is fixedly arranged at the front side upper portion of the power distribution cabinet 4; the interactive system 5 comprises a support rod 51, which is a bent L-shaped, one end of the support rod 51 is fixedly connected with the shell of the power distribution cabinet 4, and the other end is fixedly connected with the upper middle portion of the shell 52; a display screen 53 is fixedly arranged at the left side upper middle portion of the shell 52, a time delay control module 54 is fixedly arranged at the rear lower portion of the display screen 53, and a PLC control module 55 is fixedly arranged at the front side of the time delay control module 54; the time delay control module 54 is connected with the PLC control module 55 through a signal line, and the PLC control module 55 is fixedly connected with the display screen 53.

[0032] The power distribution cabinet 4 provides power for the driving motor of the traction mechanism 12, and also provides power for the display screen 53, the time delay control module 54 and the PLC control module 55 of the interactive system 5.

[0033] The display screen 53 can manually control the opening and closing of the entrance lifting door 8, the exit lifting door 9 and the blocking lifting door 10, and also manually control the opening and closing of the traction mechanism 12.

[0034] The time delay control module 54 can time delay control the closing of the exit lifting door 9 and the blocking lifting door 10 under the cooperation of the time delay control module 54 and the PLC control module 55.

[0035] As shown in Figure 1 As shown in

[0036] As shown in Figure 1 The lifting door 7 comprises the entrance lifting door 8, the exit lifting door 9 and the blocking lifting door 10, and the entrance lifting door 8, the exit lifting door 9 and the blocking lifting door 10 have the same structure; the entrance lifting door 8 is fixedly arranged at the right side of the entrance 2, the exit lifting door 9 is fixedly arranged at the left end of the exit 3, and the blocking lifting door 10 is fixedly arranged at the right side of the exit lifting door 9.

[0037] The entrance lifting door 8 is opened first when the kiln car 11 needs to be loaded, and then the entrance lifting door 8 is closed when the refractory brick blanks on the kiln car 11 need to be dried, so as to prevent the heat loss of the drying kiln 1.

[0038] The double-door tunnel type drying kiln is formed by the outlet lifting door 9 and the blocking lifting door 10, and the exhaust gas generated in the single kiln car 11 can be extracted and purified by the cooperation of the closing and opening of the outlet lifting door 9 and the blocking lifting door 10; meanwhile, the opening of the outlet lifting door 9 can move the dried refractory brick blank and the kiln car 11 in the drying kiln 1 out of the drying kiln 1 through the traction mechanism 12, so that the automatic and continuous drying operation of the multiple kiln cars 11 (including the refractory brick blank) in the drying kiln 1 is realized.

[0039] As shown in Figure 1 , 2 , 3, the kiln car 11 is cooperatively installed at the bottom of the drying kiln 1, and the kiln car 11 is moved in the drying kiln 1 under the traction of the traction mechanism 12; the traction mechanism 12 is fixedly arranged in the ground at the bottom of the drying kiln 1.

[0040] The kiln car 11 can be moved in the drying kiln 1 by the cooperation of the kiln car 11 and the traction mechanism 12.

[0041] As shown in Figures 4-6 , the lifting door 7 comprises a lifting frame 71, the lifting frame 71 is an inverted U-shaped structure, guide grooves 72 are symmetrically arranged on the inner side of the lifting frame 71, a mounting plate 73 is fixedly arranged at the upper middle position of the lifting frame 71, a hydraulic cylinder 74 is fixedly installed on the mounting plate 73, the telescopic rod of the hydraulic cylinder 74 penetrates through the mounting plate 73 and is fixed at the upper middle position of a door body 76, auxiliary lifting mechanisms 75 are fixedly arranged at the front and rear positions of the lifting frame 71, four lifting guide wheels 77 are arranged, two as a group, one group is symmetrically arranged above and below the front side of the door body 76, and the other group is symmetrically arranged above and below the right side of the door body 76; the lifting guide wheels 77 on both sides of the door body 76 are slidingly installed in the symmetrically arranged guide grooves 72, and the upper part of the door body 76 is fixedly connected with the inner side of the auxiliary lifting mechanism 75; the hydraulic cylinder 74 is fixedly communicated with the electromagnetic control valve of the hydraulic station through a hydraulic pipe, and the electromagnetic control valve of the hydraulic station is fixedly connected with the delay control module 54 and the PLC control module.

[0042] The lifting frame 71, the guide grooves 72, the mounting plate 73, the hydraulic cylinder 74, the door body 76 and the lifting guide wheels 77 are arranged, the telescopic rod of the hydraulic cylinder 74 is used to realize the up-down movement of the door body 76, and the cooperation of the guide grooves 72 and the lifting guide wheels 77 is used to provide the guiding effect of the lifting of the door body 76.

[0043] The auxiliary mechanism 75 is arranged, and the weight 751 of the auxiliary mechanism 75 is used to rotate the gear one 756 and the gear two 757 through the chain 752, thereby assisting the upward movement of the door body 76 and the downward movement of the door body 76, and slowly lowering the door body 76, and improving the damping effect of the downward movement of the door body 76.

[0044] As shown in Figure 2 The kiln car 11 includes a kiln car body 111, four roller groups are arranged at the bottom of the kiln car body 111, the protruding plate 113 is longitudinally arranged at the middle of the bottom of the kiln car body 111, and the sealing fitting grooves 114 are symmetrically arranged at the two sides of the bottom of the kiln car body 111. The sealing fitting grooves 114 of the kiln car 11 are aligned with the sealing grooves 102 of the drying kiln 1.

[0045] The sealing grooves 102 of the drying kiln 1 and the sealing fitting grooves 114 of the kiln car 11 are aligned and installed, so that the heat of the upper part of the kiln car 11 in the drying kiln 1 is prevented from being conducted to the bottom of the kiln car 11, and the roller groups 112 and the traction mechanism 12 of the kiln car 11 are protected (to prevent the temperature of the roller groups 112 and the traction mechanism 12 from being too high).

[0046] As shown in Figure 1 , 2 , 3, 7, and 8, the traction mechanism 12 includes a traction groove 121, the traction groove 121 is fixed in a groove on the ground, the traction groove 121 is a hollow structure with an upper part and two open ends and a closed lower part, and the traction groove 121 is higher than the ground; an upper T-shaped groove 122 is arranged at the upper part of the traction groove 121, and a lower T-shaped groove 123 is arranged at the bottom of the traction groove 121; the upper T-shaped groove 122 and the lower T-shaped groove 123 are arranged on the left and right sides of the traction groove 121; a driving double gear 124 is arranged at the left end of the traction groove 121, a driven double gear 125 is arranged at the right end of the traction groove 121, the centers of the driving double gear 124 and the driven double gear 125 are arranged with a distance from the left or right end surface of the traction groove 121; a double chain 126 is correspondingly sleeved on the driving double gear 124 and the driven double gear 125; and movable hooks 127 are uniformly fixed and installed on the outer side surface of the double chain 126.

[0047] The driving motor and the driving shaft are used to drive the driving double gear 124 to rotate, the driving double gear 124 is rotated, the driven double gear 125 is driven to rotate under the transmission of the double chain 126, and the movable hooks 127 arranged uniformly are finally driven to rotate, the protruding blocks 1277 of the movable hooks 127 are in contact with the protruding plate 113 at the bottom of the kiln car 11, and the straight movement of the kiln car 11 is driven by traction.

[0048] As Figures 1-8 shown, the working process of the double-door tunnel type drying kiln is as follows: first, according to the rotating speed of the driving motor of the traction mechanism 12, the rotating speed of the double chain 126 and the movable hook 127 of the traction mechanism 12 is determined (finally the moving distance of the kiln car 11 in the drying kiln 1 is determined), then the moving distance of the kiln car 11 is set in the PLC control module 55 in the interactive system 5 through the parameter setting module of the display screen 53, and the delay control time is set in the delay control module 54 through the parameter setting module of the display screen 53; at the same time, the flue gas treatment system is in working state by clicking the flue gas treatment system start key on the display screen 53.

[0049] Step one, kiln car loading drying: when the need to send the kiln car 11 stacked well firebrick blank to the inside of the drying kiln 1, first click on the display screen 53 on the entrance of the lifting door 8 start button, the entrance of the lifting door 8 hydraulic cylinder 74 retraction action, the telescopic rod of hydraulic cylinder 74 pull door body 76 upward movement, door body 76 upward movement in the process of lifting guide wheel 77 roller 774 along the guide groove 72 upward synchronous movement, at this time the left and right side of the auxiliary lifting mechanism 75 counterweight body due to its own gravity, through the chain 752, gear one 756, gear two 757 meshing transmission and the telescopic rod of hydraulic cylinder 74 pulling force action, pull door body 76 vertically upward, when the telescopic rod of hydraulic cylinder 74 retracts to the limit stroke, the door body 76 of the entrance of the lifting door 8 away from the drying kiln 1 bottom; then the kiln car 11 stacked well firebrick blank under the action of the external force of the cart mechanism, make the sealing fit groove 114 of the kiln car 11 and the sealing groove 102 of the drying kiln 1 alignment, at this time click on the display screen 53 on the traction mechanism 12 start key, PLC control module 55 to the drive motor of the traction mechanism 12 sends the start control instruction, the drive motor will rotate power transmission through the drive shaft to the drive double gear 124, the rotation of the drive double gear 124 through the double chain 126 driven from the double gear 125 rotation, at the same time drive double chain 126 on the movable hook 127 rotation, when the movable hook 127 rotation moves to the first kiln car 11 bottom position, the triangular protruding block 1277 of the movable hook 127 contact with the protruding plate 113 of the kiln car 11 bottom, at this time the protruding block 1277 in the rotation of the movable shaft 1276, the rear end of the protruding block 1277 and the baffle 1278 top, with the movable hook 127 continue to rotate, pull the first kiln car 11 to the left end of the drying kiln 1, after the first kiln car 11 status kiln is completed, continue to pull the second kiln car to the inside of the drying kiln 1, repeat the above traction loading kiln car 11 action until the first kiln car 11 traction to the inside of the drying kiln 1 (drying kiln 1 placed in the number of kiln car 11, according to the size of the kiln car 11 and the length of the drying kiln 1 inside the size is determined); then click on the display screen 53 on the start button of the closing entrance of the lifting door 8, the entrance of the lifting door 8 repeat the above opening action opposite operation, that is, the closing of the entrance of the lifting door 8; finally, the drying kiln 1 on the kiln car 11 of the firebrick blank drying.

[0050] Step two, the process of the kiln car out of the kiln: when all the kiln cars 11 in the drying kiln 1 dry the refractory brick blank is completed, the need to move the kiln car 11 from the drying kiln 1, first click the display screen 53 on the traction mechanism 12 of the start key and the blocking lift door 10 start key, traction mechanism 12 drive double gear 124 under the drive of the motor and drive shaft rotation, drive double gear 124 rotation power through the double chain 126 driven double gear 125 rotation, using the double chain 126 rotation driven hook 127 uniform rotation, at this time located in the left end of the traction mechanism 12 of the hook 127 first traction located in the right side of the blocking lift door 10 kiln car 11 move, while the PLC control module 55 to the blocking lift door 10 send open control instruction (blocking lift door 10 repeat the same action process in step one of the entrance lift door 8) can open the blocking lift door 10, with the kiln car 11 continue to move to the left end, while the delay control module 54 records the blocking lift door 10 open time, delay 30 seconds and send the control signal to the PLC control module 55 to close the blocking lift door 10, PLC control module 55 to the blocking lift door 10 send close control instruction, the blocking lift door 10 repeat the action of the entrance lift door 8 in step one of the closing, can close the blocking lift door 10, in the process of moving the kiln car 11, the flue gas treatment system through the smoke exhaust 6 will be formed due to drying kiln car 11 on the flue gas extraction and purification treatment; with the kiln car 11 continue to move to the left, when reach the PLC control module 55 set maximum distance, PLC control module 55 to the exit lift door 9 send open control signal, the exit lift door 9 open, with the kiln car 11 continue to move to the left end, delay control module 54 delay 30 seconds and send the control signal to the PLC control module 55 to close the exit lift door 9, PLC control module 55 to the exit lift door 9 send close control instruction, the exit lift door 9 close, at this time the kiln car 11 traction move out of the drying kiln 1, as to the remaining kiln car 11 according to the above first kiln car 11 out of the kiln purification treatment action, can complete the kiln car 11 one by one out of the kiln.

[0051] Many modifications to the above-described embodiments will be apparent to those of ordinary skill in the art and the general principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not to be limited to the implementations shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed in this document.

Claims

1. A double-door tunnel-type drying kiln, comprising a drying kiln (1), an inlet (2), and an outlet (3), wherein the drying kiln (1) is a hollow cuboid with refractory material lining its interior, the inlet (2) is located at the right end of the drying kiln (1), and the outlet (3) is located at the left end of the drying kiln (1); a power distribution cabinet (4) is vertically fixedly installed at the front left side of the drying kiln (1), and an interactive system (5) is fixedly installed at the upper front side of the power distribution cabinet (4); characterized in that: The smoke exhaust pipe (6) is fixed on the drying kiln (1) near the left end upper middle position, the bottom of the smoke exhaust pipe (6) is communicated with the inside of the drying kiln (1), and the upper portion of the smoke exhaust pipe (6) is fixedly communicated with the inlet end of the flue gas treatment system; the lifting door (7) is divided into an inlet lifting door (8), an outlet lifting door (9) and a blocking lifting door (10), the inlet lifting door (8), the outlet lifting door (9) and the blocking lifting door (10) are of the same structure; the inlet lifting door (8) is fixedly arranged at the right side of the inlet (2), the outlet lifting door (9) is fixedly arranged at the left end of the outlet (3), and the blocking lifting door (10) is fixedly arranged at the right side of the outlet lifting door (9); the kiln car (11) is cooperatively installed at the bottom of the drying kiln (1), and under the traction of the traction mechanism (12), the kiln car (11) can move in the drying kiln (1); and the traction mechanism (12) is fixedly arranged on the ground at the bottom of the drying kiln (1).

2. A twin-door tunnel type drying kiln according to claim 1, characterized in that: The drying kiln (1) comprises a kiln body (101), the bottom of the kiln body (101) is in contact with the ground, a sealing groove (102) is symmetrically arranged at the lower portion of the kiln body (101), and the sealing groove (102) penetrates the kiln body (101) left and right; a track groove (103) is symmetrically arranged at the bottom of the kiln body (101), and the track groove (103) penetrates the kiln body (101) left and right; and a mounting groove (104) is arranged at the left end of the kiln body (101), the mounting groove (104) is a square opening penetrating the kiln body (101) longitudinally, and the mounting groove (104) is used for mounting the blocking lifting door (10).

3. The twin-door tunnel type drying kiln according to claim 1, characterized in that: The interaction system (5) comprises a supporting rod (51), the supporting rod (51) is a bent L-shaped, one end of the supporting rod (51) is fixedly connected with the shell of the power distribution cabinet (4), and the other end is fixedly connected with the upper middle position of the shell (52); a display screen (53) is fixedly arranged at the left side upper middle position of the shell (52), a time delay control module (54) is fixedly arranged at the rear lower portion of the display screen (53), a PLC control module (55) is fixedly arranged at the front side of the time delay control module (54), the time delay control module (54) is connected with the PLC control module (55) through a signal line, and the PLC control module (55) is fixedly connected with the display screen (53).

4. The twin-door tunnel type drying kiln according to claim 1, characterized in that: The lifting door (7) comprises a lifting frame (71), the lifting frame (71) is inverted U-shaped, guide grooves (72) are symmetrically arranged on the inner side of the lifting frame (71), a mounting plate (73) is fixedly arranged at the upper middle position of the lifting frame (71), a hydraulic cylinder (74) is fixedly installed on the mounting plate (73), the telescopic rod of the hydraulic cylinder (74) penetrates through the mounting plate (73) and is fixed at the upper middle position of a door body (76), auxiliary lifting mechanisms (75) are fixedly arranged at the front and rear positions of the lifting frame (71), lifting guide wheels (77) are arranged in four groups, two groups are symmetrically arranged above and below the front side of the door body (76), and the other two groups are symmetrically arranged above and below the right side of the door body (76); the lifting guide wheels (77) on the two sides of the door body (76) are slidingly installed in the symmetrically arranged guide grooves (72), and the upper portion of the door body (76) is fixedly connected with the inner side of the auxiliary lifting mechanism (75); the hydraulic cylinder (74) is fixedly communicated with the electromagnetic control valve of the hydraulic station through a hydraulic pipe, and the electromagnetic control valve of the hydraulic station is fixedly connected with a delay control module (54) and a PLC control module.

5. A twin-door tunnel type drying kiln according to claim 4, characterized in that: The auxiliary lifting mechanism (75) comprises a counterweight (751), the counterweight (751) is a cuboid, one end of a chain (752) is fixed to the upper center of the counterweight (751), four first shaft seats (753) are arranged, two groups are symmetrically arranged on the upper end of the lifting frame (71), and the other two groups are symmetrically arranged on the inner side of the upper portion of the lifting frame (71), a rotating shaft one (754) is transversely installed and fixed on the two first shaft seats (753) symmetrically arranged on the upper end of the lifting frame (71), a rotating shaft two (755) is transversely installed and fixed on the two first shaft seats (753) arranged on the inner side of the upper portion of the lifting frame (71), a gear one (756) is fixed on the middle position of the rotating shaft one (754), and a gear two (757) is fixed on the middle position of the rotating shaft two (755); the other end of the chain (752) is wound on the gear one (756) and the gear two (757) from the upper portions of the gear one (756) and the gear two (757) and engaged with the gear one (756) and the gear two (757), and extends to the upper portion of the door body (76) and is fixed to the upper portion of the door body (76).

6. A twin-door tunnel type drying kiln according to claim 5, characterized in that: The lifting guide wheel (77) comprises a fixed plate (771), the fixed plate (771) is a cuboid, rotating shaft seats (772) are symmetrically fixed on both ends of the fixed plate (771), a rotating shaft (773) is fixedly installed on the symmetrically arranged rotating shaft seats (772), and a roller (774) is fixed on the rotating shaft (773).

7. The twin-door tunnel type dry kiln according to claim 1, characterized in that: The kiln car (11) comprises a kiln car body (111), four roller groups are arranged at the bottom corners of the kiln car body (111), a convex plate (113) is longitudinally fixedly arranged at the middle position of the bottom of the kiln car body (111), and sealing fitting grooves (114) are symmetrically arranged on both sides of the bottom of the kiln car body (111); the sealing fitting grooves (114) of the kiln car (11) are aligned with the sealing grooves (102) of the drying kiln (1).

8. The twin-door tunnel type dry kiln according to claim 1, characterized in that: The traction mechanism (12) comprises a traction groove (121) fixed in a groove on the ground, the traction groove (121) is a hollow shape with an upper part welded by a steel plate, two open ends and a closed lower part, and the traction groove (121) is higher than the ground; an upper T-shaped groove (122) is arranged at the upper part of the traction groove (121), and a lower T-shaped groove (123) is arranged at the bottom of the traction groove (121); the upper T-shaped groove (122) and the lower T-shaped groove (123) are arranged through the left and right sides of the traction groove (121); a driving double gear (124) is arranged at the left end of the traction groove (121), and a driven double gear (125) is arranged at the right end of the traction groove (121); the centers of the driving double gear (124) and the driven double gear (125) are arranged with a spacing from the left or right end surface of the traction groove (121); double chains (126) are correspondingly sleeved on the driving double gear (124) and the driven double gear (125); and movable hooks (127) are uniformly fixed and installed on the outer side surfaces of the double chains (126).

9. A twin-door tunnel type drying kiln according to claim 8, characterized in that: The movable hook (127) comprises a square frame (1271), a U-shaped mounting groove is arranged at the bottom of the square frame (1271), four second shaft seats (1272) are arranged, two front and rear symmetrical ones are arranged as a group, one group is fixedly arranged at the left end of the square frame (1271), and the other group is fixedly arranged at the right end of the square frame (1271); a convex shaft (1273) is rotatably arranged in the bearing inner ring of the four second shaft seats (1272), and a rolling wheel (1274) is fixedly arranged at the outer side end of the convex shaft (1273); support plates (1275) are fixedly arranged on the upper part of the square frame (1271), a movable shaft (1276) is arranged on the right upper part of the front and rear symmetrical support plates (1275), a convex block (1277) is fixedly arranged on the movable shaft (1276), the convex block (1277) is in triangular structure, and a baffle (1278) is fixedly arranged at the rear end bottom of the support plate (1275).

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