PP flame-retardant plate drying equipment

Abstract

The invention discloses PP flame-retardant plate drying equipment, and relates to the technical field of PP flame-retardant plate drying appliances, the PP flame-retardant plate drying equipment comprises a transmission box shell, a drying box shell is arranged in the middle of the top end of the transmission box shell, a supporting seat is arranged on one side of the bottom end of the transmission box shell, and a supporting transmission box is arranged on the other side of the bottom end of the transmission box shell; four supporting columns are symmetrically arranged at the bottom end of the transmission box shell, a conveying mechanism is arranged in the transmission box shell, through the arrangement of the microwave drainage mechanism, PP flame-retardant plates can be better dried, in the microwave drying process, microwave energy directly acts on medium molecules and converts the medium molecules into heat energy, and due to the fact that microwaves have penetrability, the inside and the outside of a medium are heated at the same time, the heat efficiency is improved. The heating speed is very high, polar molecules in the material rapidly oscillate in a microwave field to generate heat energy, so that the temperature of the material rapidly rises in a short time from the inside, and the heating and drying effects are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of PP flame retardant board drying tools, in particular to a PP flame retardant board drying device. Background Art

[0002] PP board is a semi-crystalline material. It is harder than PE and has a higher melting point. It has a low density and is easy to weld and process. It has excellent chemical resistance, heat resistance and impact resistance. It is non-toxic and odorless. It is currently the most environmentally friendly engineering. PP board is widely used in chemical containers, machinery, electronics, electrical appliances, medicine, decoration and other fields. After the PP board is produced, it contains moisture. If the moisture is not dried and stored, it will affect the production quality of the PP board.

[0003] Existing PP flame retardant board drying equipment mostly adopts a combination of a conveyor belt and a box-type structure and uses the microwave principle to remove moisture from the PP flame retardant board. When the high-temperature water vapor in the box-type structure is discharged, it is easy to condense on the inner wall of the box body and reflux and drip onto the PP flame retardant board, which reduces the drying efficiency of the PP flame retardant board. In addition, the transmission belt is tightly fitted with the PP flame retardant board during drying and transportation, so that the water vapor at the bottom of the PP flame retardant board will re-enter the PP flame retardant board after being discharged, thereby reducing the drying efficiency of the PP flame retardant board. To this end, the present application designs a PP flame retardant board drying equipment to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a PP flame retardant board drying device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a PP flame-retardant board drying equipment, comprising a transmission box shell, a drying box shell is provided in the middle of the top end of the transmission box shell, a support seat is provided on one side of the bottom end of the transmission box shell, a supporting transmission box is provided on the other side of the bottom end of the transmission box shell, four supporting columns are symmetrically provided at the bottom end of the transmission box shell, a conveying mechanism is provided inside the transmission box shell, the drying box shell is divided into four independent chambers, microwave drying drainage mechanisms are provided inside the four independent chambers, control consoles are provided at the side ends of the transmission box shell and the drying box shell, and an air blowing and chip collection mechanism is provided at the lower end of the transmission box shell.

[0006] Preferably, the tops of the four independent chambers of the drying box shell are each provided with an exhaust duct, the lower ends of the exhaust ducts are inverted funnel structures, the tops of the exhaust ducts are each connected to an exhaust main pipe, and a plurality of ventilation slots are equidistantly provided on the outer wall of the drying box shell.

[0007] Preferably, the conveying mechanism consists of a transmission belt and two pressure plate stabilizing components of the transmission belt. The transmission belt is horizontally installed inside the transmission box shell. The two pressure plate stabilizing components are symmetrically installed on the inner wall of the transmission box shell. The transmission belt is composed of several corrugated plate units. Several air holes are equidistantly provided on the corrugated plate. A ventilation toggle mechanism is provided on the inner side of the transmission belt.

[0008] Preferably, the microwave drying drainage mechanism consists of a microwave transmitting box, a shield and a water collection baffle. The microwave transmitting box is located directly above the transmission belt, the shield is located at the bottom end of the microwave transmitting box, four ventilation grooves are symmetrically provided on the shield, the water collection baffle is installed on the inner walls of four independent chambers of the drying box shell, the lower end of the inner wall of the shield is located in the middle of the water collection baffle, the drying box shell is provided with a drainage hole for cooperating with the water collection baffle to drain water, and the inner partition wall of the drying box shell is provided with a connecting groove for connecting each water collection baffle.

[0009] Preferably, four supporting transmission shafts are provided in the transmission belt, one of the supporting transmission shafts is inserted into a supporting transmission box, a motor shaft is provided in the supporting transmission box, a conveyor belt is sleeved on the supporting transmission shaft and the motor shaft, the supporting transmission shaft has a small diameter in the middle and a large diameter at both ends and abuts against the conveyor belt.

[0010] Preferably, the ventilation toggle mechanism is composed of several exhaust plates and connecting air supply plates, the several exhaust plates are connected to the connecting air supply plates, the side ends of the connecting air supply plates are provided with air inlet pipes, the top surface of the exhaust plates is equidistantly provided with several air outlet holes, and the side ends of the connecting air supply plates are provided with toggle adjustment components.

[0011] Preferably, the toggle adjustment assembly consists of a lifting block and an electric telescopic rod, an extension block is provided at the end of the electric telescopic rod, the extension block is obliquely abutted against the lifting block, a connecting block is provided on the top surface of the lifting block, a lifting selector bar is provided on the connecting block, and a plurality of matching selector bars for colliding with the lifting selector bar are equidistantly provided in the middle inner side of the transmission belt.

[0012] Preferably, the pressure plate stabilization assembly consists of an abutment rod and two adjustment boxes, the adjustment boxes are located at both ends of the abutment rod, and are provided with sliding grooves for the abutment rod to slide up and down. An electric telescopic cylinder is provided on the top of the adjustment box, and the flat plate at the end of the extension rod of the electric telescopic cylinder abuts against a spring, and the other end of the internal spring of the adjustment box abuts against a sliding sleeve block, and both ends of the abutment rod are sleeved on the sliding sleeve block.

[0013] Preferably, a blow box is provided in the middle of the bottom surface of the transmission box shell, an air intake window is provided at the side end of the blow box, an air intake window for cooperating with the air intake window is provided on the side wall of the transmission box shell, an exhaust window is provided on the side wall of the transmission box shell corresponding to the air intake window, a filter baffle is provided at the side end of the exhaust window, and a chip drawer is provided in the blow box.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: in the present invention, through the heat dissipation cooperation of the transmission belt and the exhaust pipe, it is convenient to extract the water vapor at the upper and lower ends of the PP flame retardant board from the device, thereby improving the drying effect of the PP flame retardant board, and further realizing the function of comprehensive dehumidification of the PP flame retardant board; through the water collection cooperation of the baffle cover and the water collection baffle bar, it is convenient to collect droplets on the device and the inner wall, thereby improving the drying efficiency of the PP flame retardant board, and further realizing the function of preventing water droplets from condensing and dripping; and through the vibration cooperation of the air blowing chip collection mechanism and the toggle adjustment component, it is convenient to remove the debris on the PP flame retardant board while dispersing the high-temperature water vapor in the middle of the device, thereby realizing the function of high-temperature water vapor quickly leaving the PP flame retardant board, and finally solving the problem of drying difficulty and droplet reflux of the PP flame retardant board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention from a second viewing angle;

[0018] Figure 3 It is a schematic diagram of the overall structure of the present invention from a third viewing angle;

[0019] Figure 4 It is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention;

[0020] Figure 5 It is a three-dimensional structural diagram of the position relationship of the components inside the drying box shell of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the conveyor belt component unit in zone A of the present invention;

[0022] Figure 7 It is a three-dimensional schematic diagram of the position relationship of the water collection baffle of the present invention;

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the position relationship of the ventilation toggle mechanism of the present invention;

[0024] Fig. 9 It is a three-dimensional structural diagram of the position relationship of the components of the ventilation toggle mechanism of the present invention;

[0025] Fig.10 It is a three-dimensional structural diagram showing the positional relationship of the components of the toggle adjustment assembly of the present invention;

[0026] Fig.11 It is a three-dimensional structural schematic diagram of the positional relationship of the components of the pressure plate stabilization assembly of the present invention;

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure of the chip collection drawer and the blower box of the present invention;

[0028] Fig.13 It is a schematic diagram of a cross-sectional three-dimensional structure of a support transmission box of the present invention;

[0029] Fig.14 It is a schematic diagram of the sectional three-dimensional structure of the conveyor belt of the present invention.

[0030] The serial numbers in the figure are: 1. Support seat; 2. Transmission box shell; 3. Drying box shell; 4. Control panel; 5. Exhaust window; 6. Chip collection drawer; 7. Exhaust pipe; 8. Support column; 9. Pressure plate stabilizing assembly; 10. Support transmission box; 11. Blower box; 12. Ventilation slot; 13. Filter screen; 14. Inlet pipe; 15. Transmission belt; 16. Microwave emission box; 17. Drain hole; 18. Shield; 19. Ventilation slot; 20. Wave plate; 21. Ventilation hole ; 22. Water collection baffle; 23. Connecting groove; 24. Support transmission shaft; 25. Ventilation toggle mechanism; 26. Toggle adjustment assembly; 27. Exhaust plate; 28. Connecting air supply plate; 29. ​​Lifting and lowering strip; 30. Lifting block; 31. Electric telescopic rod; 32. Abutment rod; 33. Spring; 34. Sliding sleeve block; 35. Electric telescopic cylinder; 36. Air intake window; 37. Conveyor belt; 38. Motor shaft; 39. Matching strip; 40. Air intake window. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Example 1: See Figures 1 to 14, a PP flame retardant board drying equipment, including a transmission box shell 2, a drying box shell 3 is provided in the middle of the top of the transmission box shell 2, a support seat 1 is provided on one side of the bottom end of the transmission box shell 2, and a supporting transmission box 10 is provided on the other side of the bottom end of the transmission box shell 2. Four supporting columns 8 are symmetrically provided at the bottom end of the transmission box shell 2, and a conveying mechanism is provided inside the transmission box shell 2. The drying box shell 3 is divided into four independent chambers, and microwave drying drainage mechanisms are provided inside the four independent chambers. A control console 4 is provided at the side ends of the transmission box shell 2 and the drying box shell 3, and an air blasting and chip collecting mechanism is provided at the lower end of the transmission box shell 2. Through the setting of the microwave drainage mechanism, the PP flame retardant board can be better dried. In the microwave drying process, microwave energy directly acts on the medium molecules and converts them into heat energy. Due to the penetrability of microwaves, the medium is heated inside and outside at the same time, and the heating speed is very fast. The polar molecules in the material oscillate rapidly in the microwave field to generate heat energy, so that the temperature of the material rises rapidly from the inside in a short time, thereby achieving the effect of heating and drying; the top of the four independent chambers of the drying box shell 3 The exhaust pipe 7 is provided at each part, the lower end of the exhaust pipe 7 is an inverted funnel structure, the top of the exhaust pipe 7 is connected to the exhaust main pipe, and a plurality of ventilation slots 12 are evenly spaced on the outer wall of the drying box shell 3. Through the arrangement of the exhaust pipe 7 and the ventilation slots 12, the exhaust main pipe can be connected to the fan so as to bring the water vapor generated by the drying of the PP flame retardant board out of the device; the conveying mechanism is composed of a transmission belt 15 and two pressure plate stabilizing components 9 of the transmission belt 15, the transmission belt 15 is horizontally installed inside the transmission box shell 2, and the two pressure plate stabilizing components 9 is symmetrically installed on the inner wall of the transmission box housing 2, the transmission belt 15 is composed of a plurality of corrugated plates 20 units, a plurality of air holes 21 are equidistantly provided on the corrugated plates 20, and a ventilation toggle mechanism 25 is provided on the inner side of the transmission belt 15. By setting the corrugated plates 20 that constitute the transmission belt 15, the supporting contact area between the transmission belt 15 and the PP flame retardant plate can be reduced, so as to facilitate the discharge of the water vapor after drying, and prevent the water vapor from being attached to the transmission belt 15 after drying to form droplets that are reabsorbed by the PP flame retardant plate, so that the drying efficiency of the PP flame retardant plate is reduced;

[0033] Embodiment 2: The technical solution is basically the same as that of Embodiment 1, except that Figures 5 to 9 , Fig.13As shown, the microwave drying drainage mechanism is composed of a microwave transmitting box 16, a shield 18 and a water collecting baffle 22. The microwave transmitting box 16 is located directly above the transmission belt 15. The shield 18 is located at the bottom of the microwave transmitting box 16. Four ventilation grooves 19 are symmetrically provided on the shield 18. The water collecting baffle 22 is installed on the inner wall of four independent chambers of the drying box shell 3. The lower end of the inner wall of the shield 18 is located in the middle of the water collecting baffle 22. The drying box shell 3 is provided with a drainage hole 17 for cooperating with the water collecting baffle 22 to drain water. A connecting groove 23 for connecting each water collection baffle 22 is provided on the inner partition wall of the drying box shell 3. Through the setting of the baffle cover 18 and the water collection baffle 22, the small liquid droplets condensed at the lower end of the baffle cover 18 and the inner wall of the drying box shell 3 can be conducted to the water collection baffle 22, and the water can be discharged through the connecting groove 23 and the drainage hole 17 to prevent the water from dripping onto the PP flame retardant board again, thereby reducing the drying effect of the PP flame retardant board; four supporting transmission shafts 24 are provided in the transmission belt 15, one supporting transmission shaft 24 is inserted into the support transmission box 10, and a motor shaft 38 is provided in the support transmission box 10. A conveyor belt 37 is sleeved on the support transmission shaft 24 and the motor shaft 38. The diameter of the middle part of the support transmission shaft 24 is small and the diameter of the two ends is large and abuts against the conveyor belt 37. By setting the two ends of the support transmission shaft 24 thick and the middle thin, the matching strip 39 on the transmission belt 15 can smoothly pass through the support transmission shaft 24. The setting of the conveyor belt 37 and the motor shaft 38 can better drive the support transmission shaft 24 to rotate, so that the transmission belt 15 can be normally transported. The ventilation toggle mechanism 25 is composed of several exhaust plates 27 and a connecting air delivery plate 28. The several exhaust plates 27 are connected to the connecting air delivery plate 28. The side end of the connecting air delivery plate 28 is provided with an air inlet pipe 14. The top surface of the exhaust plate 27 is equidistantly provided with several air outlets. The side ends of the connecting air delivery plates 28 are provided with a toggle adjustment component 26. Through the setting of the ventilation toggle mechanism 25, the exhaust plate 27 can discharge air from the air outlet, thereby blowing away the water vapor at the bottom of the PP flame retardant plate to prevent the water vapor from condensing.

[0034] Embodiment 3: The technical solution is basically the same as that of Embodiment 1, except that Figures 10 to 14As shown, the toggle adjustment component 26 is composed of a lifting block 30 and an electric telescopic rod 31. The end of the electric telescopic rod 31 is provided with an extension block, which is inclinedly abutted against the lifting block 30. A connecting block is provided on the top surface of the lifting block 30, and a lifting strip 29 is provided on the connecting block. A plurality of matching strips 39 for colliding with the lifting strip 29 are equidistantly provided in the middle of the inner side of the transmission belt 15. By setting the toggle adjustment component 26, the lifting strip 29 of the transmission belt 15 can collide with the matching strip 39 during the transmission process, so that the fluctuation of the transmission belt 15 accelerates the high-temperature airflow at the bottom of the transmission belt 15 to disperse; the pressure plate stabilizing component 9 is composed of an abutting rod 32 and two adjusting boxes. The adjusting boxes are located at both ends of the abutting rod 32. The adjusting boxes are provided with a sliding groove for the abutting rod 32 to slide up and down. The top of the adjusting box is provided with an electric telescopic cylinder 35. The flat plate at the end of the extension rod of the electric telescopic cylinder 35 abuts against a spring 33. The other end of the internal spring 33 of the adjusting box abuts against a sliding sleeve block 34. Both ends of 32 are sleeved on the sliding sleeve block 34, and the pressure plate stabilizing component 9 is set to reduce the impact of vibration on the feeding and sending of the PP flame retardant board, so that the feeding and sending of the PP flame retardant board are more stable; the air blast chip collection mechanism is composed of a chip collection drawer 6 and a blast box 11. The middle part of the bottom surface of the transmission box shell 2 is provided with a blast box 11, and the side end of the blast box 11 is provided with an air intake window 36. The side wall of the transmission box shell 2 is provided with an air intake window 40 for matching the air intake window 36. An exhaust window 5 is provided on the side wall of the transmission box shell 2 corresponding to the air inlet window 40, and a filter screen 13 is provided at the side end of the exhaust window 5. A chip drawer 6 is provided in the blow box 11. Through the arrangement of the blow box 11, the air inlet window 36 and the air inlet window 40, air can be blown to the middle part of the transmission belt 15 through the blow box 11, thereby removing the water vapor on the PP flame retardant board and blowing away the debris on the PP flame retardant board. The debris passes through the blocking of the filter screen 13 and falls into the chip drawer 6.

[0035] Working principle: In this embodiment, the present invention also proposes a method for using the PP flame retardant board drying equipment, comprising the following steps:

[0036] Step 1: First, the electric telescopic rod 31, the electric telescopic cylinder 35 and the components on the device are powered on, and then the suction fan is connected to the exhaust main pipe, and then the support transmission shaft 24 is started, so that the support transmission shaft 24 drives the transmission belt 15 to rotate and run, and at the same time, the adjustment component 26 is started, so that the lifting and lowering strips 29 of the transmission belt 15 collide with the matching strips 39 during the transmission process, so that the transmission belt 15 vibrates and drives the PP flame retardant board to vibrate, so that the high-temperature airflow directly between the PP flame retardant board and the transmission belt 15 is easy to be blown away;

[0037] Step 2: Then, place the PP flame retardant board on the transmission belt 15. When the PP flame retardant board is placed, the abutment rod 32 on the pressing plate stabilizing assembly 9 fits and presses the PP flame retardant board. The electric telescopic cylinder 35 on the pressing plate stabilizing assembly 9 can telescopically adjust the degree of compression of the spring 33 at the lower end of the extension rod on the abutment rod 32, thereby controlling the degree of compression of the abutment rod 32 on the PP flame retardant board. The setting of the pressing plate stabilizing assembly 9 reduces the influence of vibration on the feeding and sending of the PP flame retardant board, making the feeding and sending of the PP flame retardant board more stable.

[0038] Step 3, the PP flame retardant board then enters the drying box shell 3 from the transmission box shell 2. At this time, the microwave emission box 16 above the transmission belt 15 emits microwaves. During the microwave drying process, microwave energy directly acts on the medium molecules and converts them into heat energy. Since microwaves are penetrating, the inside and outside of the medium are heated at the same time, and the heating speed is very fast. The polar molecules in the material oscillate rapidly in the microwave field to generate heat energy, so that the temperature of the material rises rapidly from the inside in a short time, achieving the effect of heating and drying;

[0039] Step 4: During microwave heating and drying, high-temperature steam is continuously generated in the drying box shell 3. Under the action of the exhaust pipe 7 and the ventilation slot 12, the airflow can be sucked from the ventilation slot 12 into the drying box shell 3, and the fan connected to the exhaust main pipe can bring the water vapor generated by the drying of the PP flame retardant board out of the device. The setting of the baffle 18 and the water collection baffle 22 can conduct the small liquid droplets condensed at the lower end of the baffle 18 and the inner wall of the drying box shell 3 to the water collection baffle 22, and discharge the water through the action of the connecting slot 23 and the drainage hole 17, so as to prevent the water from dripping onto the PP flame retardant board again and reduce the drying effect of the PP flame retardant board;

[0040] Step five, when the PP flame retardant board passes through the middle of the transmission box shell 2, the middle of the transmission belt 15 is blown by the blower box 11, so as to remove the water vapor on the PP flame retardant board and blow away the debris on the PP flame retardant board. The debris passes through the filter baffle 13 and falls into the chip collection drawer 6. The setting of the toggle adjustment component 26 can make the lifting and lowering strips 29 of the transmission belt 15 collide with the matching strips 39 during the transmission process, so that the transmission belt 15 fluctuates and accelerates the high-temperature airflow at the bottom of the transmission belt 15 to be blown away.

[0041] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PP flame retardant board drying device, comprising a transmission box housing (2), characterized in that: A drying box shell (3) is provided at the middle of the top of the transmission box shell (2); a support seat (1) is provided at one side of the bottom of the transmission box shell (2); a supporting transmission box (10) is provided at the other side of the bottom of the transmission box shell (2); four supporting columns (8) are symmetrically provided at the bottom of the transmission box shell (2); a conveying mechanism is provided inside the transmission box shell (2); the drying box shell (3) is divided into four independent chambers; microwave drying drainage mechanisms are provided inside the four independent chambers; a control console (4) is provided at the side ends of the transmission box shell (2) and the drying box shell (3); and an air blowing and chip collecting mechanism is provided at the lower end of the transmission box shell (2).

2. The PP flame retardant board drying equipment according to claim 1, characterized in that: The tops of the four independent chambers of the drying box shell (3) are each provided with an exhaust pipe (7), the lower end of the exhaust pipe (7) is an inverted funnel structure, the tops of the exhaust pipes (7) are each connected to an exhaust main pipe, and a plurality of ventilation slots (12) are equidistantly provided on the outer wall of the drying box shell (3).

3. The PP flame retardant board drying equipment according to claim 2, characterized in that: The conveying mechanism is composed of a transmission belt (15) and two pressure plate stabilizing components (9) of the transmission belt (15); the transmission belt (15) is horizontally installed inside the transmission box shell (2); the two pressure plate stabilizing components (9) are symmetrically installed on the inner wall of the transmission box shell (2); the transmission belt (15) is composed of a plurality of wave plate (20) units; a plurality of air holes (21) are equidistantly provided on the wave plate (20); and a ventilation toggle mechanism (25) is provided on the inner side of the transmission belt (15).

4. The PP flame retardant board drying equipment according to claim 3, characterized in that: The microwave drying drainage mechanism is composed of a microwave transmitting box (16), a shield (18) and a water collection baffle (22). The microwave transmitting box (16) is located directly above the transmission belt (15). The shield (18) is located at the bottom end of the microwave transmitting box (16). Four ventilation grooves (19) are symmetrically provided on the shield (18). The water collection baffle (22) is installed on the inner walls of four independent chambers of the drying box shell (3). The lower end of the inner wall of the shield (18) is located in the middle of the water collection baffle (22). A drainage hole (17) for cooperating with the water collection baffle (22) for drainage is provided on the drying box shell (3). A connecting groove (23) for connecting the water collection baffles (22) is provided on the inner partition wall of the drying box shell (3).

5. The PP flame retardant board drying equipment according to claim 4, characterized in that: Four supporting transmission shafts (24) are arranged in the transmission belt (15), one of the supporting transmission shafts (24) is inserted into a supporting transmission box (10), a motor shaft (38) is arranged in the supporting transmission box (10), a conveyor belt (37) is sleeved on the supporting transmission shaft (24) and the motor shaft (38), the supporting transmission shaft (24) has a small diameter in the middle and a large diameter at both ends and abuts against the conveyor belt (37).

6. The PP flame retardant board drying equipment according to claim 5, characterized in that: The ventilation toggle mechanism (25) is composed of a plurality of exhaust plates (27) and a connecting air supply plate (28); the plurality of exhaust plates (27) are connected to the connecting air supply plate (28); an air inlet pipe (14) is provided at a side end of the connecting air supply plate (28); a plurality of air outlet holes are equidistantly formed on a top surface of the exhaust plate (27); and a toggle adjustment assembly (26) is provided at a side end of the connecting air supply plate (28).

7. The PP flame retardant board drying equipment according to claim 6, characterized in that: The toggle adjustment assembly (26) is composed of a lifting block (30) and an electric telescopic rod (31); a stretching block is provided at the end of the electric telescopic rod (31); the stretching block is in oblique contact with the lifting block (30); a connecting block is provided on the top surface of the lifting block (30); a lifting and shifting bar (29) is provided on the connecting block; and a plurality of matching shifting bars (39) for colliding with the lifting and shifting bar (29) are equidistantly provided on the inner middle part of the transmission belt (15).

8. The PP flame retardant board drying equipment according to claim 7, characterized in that: The pressure plate stabilizing assembly (9) is composed of an abutment rod (32) and two adjustment boxes. The adjustment boxes are located at both ends of the abutment rod (32). The adjustment boxes are provided with sliding grooves for the abutment rod to slide up and down. The tops of the adjustment boxes are provided with electric telescopic cylinders (35). The flat plate at the end of the extension rod of the electric telescopic cylinder (35) abuts against a spring (33). The other end of the internal spring (33) of the adjustment box abuts against a sliding sleeve block (34). Both ends of the abutment rod (32) are sleeved on the sliding sleeve block (34).

9. The PP flame retardant board drying equipment according to claim 8, characterized in that: The air blast chip collection mechanism consists of a chip collection drawer (6) and an air blast box (11); a blower box (11) is provided in the middle of the bottom surface of the transmission box shell (2); an air intake window (36) is provided at the side end of the air blast box (11); an air intake window (40) for cooperating with the air intake window (36) is provided on the side wall of the transmission box shell (2); an exhaust window (5) is provided on the side wall of the transmission box shell (2) corresponding to the air intake window (40); a filter baffle (13) is provided at the side end of the exhaust window (5); and a chip collection drawer (6) is provided in the air blast box (11).

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