Phosphogypsum board production line side edge material supplementing device, width fixing system and production method

Abstract

The invention discloses a phosphogypsum board production line side edge material supplementing device, a width fixing system and a production method. The phosphogypsum board production line side edge material supplementing device comprises a supporting base, a movable base is installed on the supporting base in a directional sliding mode, a material supplementing mechanism is installed on the lower side of the movable base, a telescopic device is further installed on the supporting base, and the telescopic device is connected with the movable base so as to drive the movable base to move in a reciprocating mode. The slurry is injected into the cavity of the material supplementing mechanism, in the production process, the material supplementing mechanism is driven through the telescopic device, the material guiding taper pipe is inserted into the packaging paper located at the defect position, slurry is supplemented into the defect, and therefore the defect on the phosphogypsum board is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy gypsum board production, and particularly relates to a side feeding device, a width fixing system and a production method for a phosphogypsum board production line. Background Art

[0002] In the production process of wet-process phosphoric acid, industrial by-product phosphogypsum is generated. Previously, phosphogypsum was generally regarded as industrial waste. Currently, through technical improvement, phosphogypsum can be used to produce phosphogypsum boards.

[0003] When our company produces phosphogypsum boards, phosphogypsum slurry is first put onto the conveyor belt of the phosphogypsum board production line through a feeding device. At the same time, packaging paper is laid on the conveyor belt and on the phosphogypsum slurry through two unwinding devices, upper and lower. After that, through the step of extrusion and shaping, the phosphogypsum slurry is extruded and extended into a board structure, and the bottom surface, top surface and side edges of the phosphogypsum board are all wrapped in the packaging paper. During the production process, as shown in Figure 8 , it is found that there is a defect of insufficient slurry at the edge of the phosphogypsum board 200. During quality inspection, the phosphogypsum board 200 with such a defect will be scrapped as a defective product. To solve this defect problem, the technical personnel of our company have proposed a side feeding device, a width fixing system and a production method for a phosphogypsum board production line of the present invention. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to solve the problems existing in the above background art, and provide a side feeding device for a phosphogypsum board production line. By injecting slurry into the cavity of the feeding mechanism, during the production process, the feeding mechanism is driven by a telescopic device to insert the guide cone tube into the packaging paper at the defective position and fill the defect with slurry, thereby eliminating the defect on the phosphogypsum board.

[0005] Another technical problem to be solved by the present invention is: to provide a width fixing system for a phosphogypsum board production line, which is used to shape the width and thickness of the slurry injected into the defect.

[0006] Another technical problem to be solved by the present invention is: to provide a width fixing production method for a phosphogypsum board production line, which realizes automatic identification and automatic grouting of defects.

[0007] To achieve the above technical features, the object of the present invention is realized as follows: A side feeding device for a phosphogypsum board production line includes a support seat, a moving seat is slidably mounted on the support seat in a fixed direction, a feeding mechanism is mounted on the lower side of the moving seat, and a telescopic device is also mounted on the support seat. The telescopic device is connected to the moving seat to drive the moving seat to reciprocate; The feeding mechanism includes a material guiding conical tube, a fixed bin, and a cloth ring. The fixed bin is a cylindrical structure with a cavity. The cloth ring is rotatably sleeved on the outer wall of the fixed bin. There is a first feeding hole on the circumferential wall of the fixed bin, and multiple second feeding holes are provided on the circumferential wall of the cloth ring. A material guiding conical tube is fixedly installed on the outer wall of the cloth ring at the position corresponding to each second feeding hole. When the cloth ring rotates, at least one second feeding hole is located within the first feeding hole; a feeding port for conveying slurry into the cavity is arranged on the moving seat. In the working state, the feeding port is communicated with the slurry supply system through a hose.

[0008] The support seat includes a horizontal support plate. A dovetail chute is arranged on the lower side of the horizontal support plate. The moving seat has a dovetail slider structure adapted to slide in the dovetail chute, and the moving seat is slidably connected to the dovetail chute. A window for avoiding the feeding port is arranged on the horizontal support plate; a vertical support plate is fixedly connected to the lower side of the horizontal support plate, and the vertical support plate is used for being installed and fixed to the frame of the phosphogypsum board production line.

[0009] The telescopic device is a cylinder. A support is fixedly installed at one end on the upper side of the horizontal support plate. The cylinder body end of the cylinder is installed on the support, and the piston rod end of the cylinder is installed with a connecting plate. After the connecting plate passes through the window, it is fixedly connected to the moving seat.

[0010] An installation position is arranged on the outer circumferential wall of the fixed bin. The outer diameter of the installation position is smaller than the outer diameter of the fixed bin, so as to form a limiting step on the outer wall of the fixed bin. The cloth ring is movably sleeved on the installation position. A clamping groove is arranged on the lower side of the installation position where the cloth ring is located, and a snap ring is installed in the clamping groove; on the upper and lower sides of the second feeding hole on the inner wall of the cloth ring, at least one first sealing groove is respectively arranged, and a sealing ring is installed in the first sealing groove.

[0011] The top of the fixed bin is open. A flange extending outward is arranged on the outer wall of the top of the fixed bin. A second sealing groove is arranged on the top surface of the flange, and a sealing ring is installed in the second sealing groove. After the threaded ends of multiple screws pass through the flange, they are screwed and fixed to the moving seat.

[0012] The material guiding conical tube includes a conical thorn part. A channel is arranged inside the conical thorn part, and a notch is arranged at the tip of the conical thorn part.

[0013] The slurry supply system is an independent slurry supply station. The slurry supply station includes a storage tank and a slurry pump. The feeding port of the slurry pump extends into the storage tank, and the discharging port of the slurry pump is connected with a hose.

[0014] A width fixing system for a phosphogypsum board production line includes the side feeding device of the phosphogypsum board production line as described above, and further includes a width fixing device; The feeding device on the side of the phosphogypsum board production line is installed on one side or both sides in the width direction of the conveyor belt. The support seat of the feeding device on the side of the phosphogypsum board production line is installed and connected to the frame of the phosphogypsum board production line; The width fixing device includes fixing plates, pressing plates, width fixing plates and support plates. The two fixing plates are respectively installed on both sides of the frame of the phosphogypsum board production line. The pressing plates are installed and supported on the two fixing plates. The two width fixing plates are respectively installed on the pressing plates. The support plate is installed on the frame of the phosphogypsum board production line. The support plate is located under the conveyor belt, and the position of the support plate corresponds to that of the pressing plate; In the use state, the guide cone tube on the feeding mechanism is aligned with the side of the phosphogypsum board on the conveyor belt, and the phosphogypsum board passes through between the two width fixing plates and under the pressing plate.

[0015] It also includes an ultrasonic detection device and a controller. The probe of the ultrasonic detection device is installed on the upstream side of the feeding device on the side of the phosphogypsum board production line. The probe corresponds to the edge of the phosphogypsum board. The probe is used to detect the defects inside the edge of the phosphogypsum board. The probe is electrically connected to the main unit, the main unit is electrically connected to the controller, and the controller is also electrically connected to the telescopic device.

[0016] A width fixing production method for a phosphogypsum board production line adopts the width fixing system of the phosphogypsum board production line. The production method includes the following steps: The defects at the edge of the phosphogypsum board on the conveyor belt are detected in real time through the probe of the ultrasonic detection device; After detecting the defects, the controller controls the telescopic device to act according to the speed of the conveyor belt and the center distance between the probe and the feeding mechanism; when the head end of the defect is located at the feeding mechanism, the controller controls the telescopic device to extend, so that the guide cone tube pierces the packaging paper on the side of the phosphogypsum board. At the same time, the slurry supply system supplies slurry to the feeding port through a hose, and transports the slurry for filling to the inside of the packaging paper on the side of the phosphogypsum board through the guide cone tube; during the feeding process, the cloth ring rotates with the phosphogypsum board; When the tail end of the defect is located at the feeding mechanism, the controller controls the telescopic device to shorten, the guide cone tube is withdrawn from the packaging paper, and the feeding mechanism leaves the phosphogypsum board; The phosphogypsum board after slurry filling moves downstream along with the conveyor belt. The side of the phosphogypsum board is width fixed by the width fixing plates on the downstream width fixing device, and the thickness of the edge of the phosphogypsum board is shaped by the pressing plate and the support plate.

[0017] The present invention adopting the above technical solution, compared with the prior art, its prominent features are: 1. The present invention injects slurry into the cavity of the feeding mechanism. During the production process, the feeding mechanism is driven by a telescopic device to pierce the guide cone tube into the wrapping paper at the defective position and fill the defect with slurry, thereby eliminating the defects on the phosphogypsum board.

[0018] 2. The present invention is provided with a conical piercing part for easily piercing into the wrapping paper, a channel for transporting slurry, and a notch for expanding the area of the channel outlet and preventing the conical piercing part from being blocked due to uneven depths of the defects after inserting into the wrapping paper.

[0019] 3. The present invention also discloses a width - fixing system for a phosphogypsum board production line, including a side feeding device for the phosphogypsum board production line and a width - fixing device. With the above structure, the width, height shaping and size control of the phosphogypsum board after slurry filling are carried out.

[0020] 4. The present invention detects the defects of the phosphogypsum board through the probe of the ultrasonic detection device, and thus realizes the automatic feeding of the feeding mechanism through the control of the controller.

[0021] 5. The entire feeding and shaping process is carried out without stopping the production line, with high operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0023] Figure 1 It is the front - view structural schematic diagram of the side feeding device of the present invention.

[0024] Figure 2 It is the top - view structural schematic diagram of the side feeding device of the present invention.

[0025] Figure 3 It is Figure 1 the sectional structural schematic diagram of A - A in

[0026] Figure 4 It is Figure 3 the sectional structural schematic diagram of B - B in

[0027] Figure 5 It is the top - view structural schematic diagram of the width - fixing system for the phosphogypsum board production line of the present invention.

[0028] Figure 6 It is the front - view structural schematic diagram of the width - fixing system for the phosphogypsum board production line of the present invention.

[0029] Figure 7 It is Figure 5 the sectional structural schematic diagram of C - C in

[0030] Figure 8It is a schematic diagram of defects on the phosphogypsum board.

[0031] Reference numerals: Hose 1; Support base 10, transverse support plate 11, dovetail chute 111, window 112, support 12, longitudinal support plate 13; Moving seat 20, feed inlet 21, joint 22; Feeding supplement mechanism 30, cavity 301, guiding conical pipe 31, conical thorn part 311, channel 312, notch 313, fixed bin 32, first cloth hole 321, flange 322, screw 323, second sealing groove 324, installation position 325, limiting step 326, snap ring 327; Cloth ring 33, second feeding hole 331, first sealing groove 332; Telescopic device 40, connecting plate 41; Conveyor belt 100; Phosphogypsum board 200, defect 201; Side feeding device 300; Slurry supply station 400, accommodation box 410, slurry pump 420; Width fixing device 500, fixing plate 510, pressing plate 520, width fixing plate 530, support plate 540; Ultrasonic detection device 600, mounting bracket 601, probe 610, main unit 620; Controller 700. Detailed implementation manner

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] It should be noted that in the specification, "this embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily each embodiment includes this specific feature, structure or characteristic. In addition, when combining embodiments to describe specific features, structures or characteristics, implementing such features, structures or characteristics in combination with other embodiments (whether explicitly described or not) should be within the knowledge scope of those skilled in the relevant art.

[0034] Embodiment 1: See Figures 1-4, A side feeding device for a phosphogypsum board production line, comprising a support base 10, a moving base 20 is slidably mounted on the support base 10 in a directional manner, a feeding mechanism 30 is mounted on the lower side of the moving base 20, and a telescopic device 40 is also mounted on the support base 10. The telescopic device 40 is connected to the moving base 20 to drive the moving base 20 to reciprocate.

[0035] The feeding mechanism 30 includes a guiding cone tube 31, a fixed bin 32 and a cloth ring 33. The fixed bin 32 is a cylindrical structure with a cavity 301. The cloth ring 33 is rotatably sleeved on the outer wall of the fixed bin 32. A first feeding hole 321 is provided on the circumferential wall of the fixed bin 32. A plurality of second feeding holes 331 are evenly distributed on the circumferential wall of the cloth ring 33. A guiding cone tube 31 is fixedly installed on the outer wall of the cloth ring 33 at the position corresponding to each second feeding hole 331. When the cloth ring 33 rotates, one or two or three second feeding holes 331 are located in the first feeding hole 321; a feeding port 21 for conveying slurry into the cavity 301 is provided on the moving base 20. In the use state, the feeding port 21 is communicated with the slurry supply system through a hose 1.

[0036] By injecting slurry into the cavity 301 of the feeding mechanism 30, during the production process, the feeding mechanism 30 is driven by the telescopic device 40 to insert the guiding cone tube 31 into the wrapping paper at the position of the defect 201, and fill the defect 201 with slurry, thereby eliminating the defect on the phosphogypsum board.

[0037] When in use, refer to Figure 3 、 4 , the first feeding hole 321 on the fixed bin 32 should be aligned with the side of the phosphogypsum board 200.

[0038] In this embodiment, the telescopic device 40 is used to drive the moving base 20 to reciprocate, so that the guiding cone tube 31 of the feeding mechanism 30 can be inserted into the wrapping paper when needed, and when not needed, the guiding cone tube 31 of the feeding mechanism 30 can be pulled out of the wrapping paper and away from the wrapping paper.

[0039] The slurry supply system can be the feeding equipment of the phosphogypsum board production line. Connect an interface from the pipeline of the feeding equipment, install a solenoid valve on this interface, and the outlet of the solenoid valve is communicated with the connecting pipe head 22 on the feeding port 21 through a hose 1. The cavity 301 is injected with slurry by opening and closing the solenoid valve.

[0040] In this embodiment, refer to Figure 1 、 2, 3. The support base 10 includes a transverse support plate 11. A dovetail chute 111 is provided on the lower side of the transverse support plate 11. The moving base 20 has a dovetail slider structure adapted to slide in the dovetail chute 111. The moving base 20 is slidably connected to the dovetail chute 111. A window 112 for avoiding the feed port 21 is provided on the transverse support plate 11. A longitudinal support plate 13 is fixedly connected to the lower side of the transverse support plate 11. The longitudinal support plate 13 is used for installing and fixing to the frame of the phosphogypsum board production line. Through the above structure, the directional sliding of the moving base 20 is realized.

[0041] In this embodiment, the telescopic device 40 is a cylinder. One end of the upper side of the transverse support plate 11 is fixedly installed with a support 12. The cylinder body end of the cylinder is installed on the support 12. The piston rod end of the cylinder is installed with an adapter plate 41. After the adapter plate 41 passes through the window 112, it is fixedly connected to the moving base 20.

[0042] During installation, the adapter plate 41 is provided with a through hole. The screw section at the piston rod end of the cylinder passes through the through hole and then a nut is installed to install the adapter plate 41 on the piston rod of the cylinder. The adapter plate 41 is fixedly connected to the moving base 20 by welding. The cylinder is controlled to expand and contract through a suitable solenoid valve. During use, the solenoid valve is electrically connected to the controller.

[0043] Of course, the telescopic device 40 can adopt an electric cylinder or an electric push rod, so as to accurately control the position of the feeding mechanism 30 in real time, so that the insertion depth of the material guiding conical tube 31 can be adjusted in real time according to the depth of the defect 201.

[0044] See Figure 3 , an installation position 325 is provided on the outer circumferential wall of the fixed bin 32. The outer diameter of the installation position 325 is smaller than the outer diameter of the fixed bin 32, so that a limiting step 326 is formed on the outer wall of the fixed bin 32. The cloth ring 33 is movably sleeved on the installation position 325. A clamping groove is provided on the lower side of the installation position 325 where the cloth ring 33 is located. A snap ring 327 is installed in the clamping groove; on the upper and lower sides of the second feeding hole 331 on the inner wall of the cloth ring 33, at least one first sealing groove 332 is respectively provided, and a sealing ring is installed in the first sealing groove 332. Through the above structure, the cloth ring 33 can rotate on the outer wall of the fixed bin 32 and can be axially limited.

[0045] In this embodiment, see Figure 3 , the top of the fixed bin 32 is open. An outwardly extending flange 322 is provided on the outer wall of the top of the fixed bin 32. A second sealing groove 324 is provided on the top surface of the flange 322, and a sealing ring is installed in the second sealing groove 324. After the threaded ends of a plurality of screws 323 pass through the flange 322, they are screwed and fixed to the moving base 20, which is convenient for the manufacture and installation of the fixed bin 32.

[0046] See Figure 4, the material guiding conical tube 31 includes a conical thorn part 311. A channel 312 is arranged inside the conical thorn part 311, and a notch 313 is arranged at the tip of the conical thorn part 311. The conical thorn part 311 is provided to facilitate piercing into the wrapping paper. The channel 312 is used for conveying the slurry, and the notch 313 is used to enlarge the area of the outlet of the channel 312 and can prevent the conical thorn part 311 from being blocked due to uneven depths of defects after the conical thorn part 311 is inserted into the wrapping paper.

[0047] In this embodiment, referring to Figure 4 , the length L2 of the first slurry distribution hole 321 is equal to the center distance L1 between two adjacent material guiding conical tubes 31.

[0048] In this embodiment, referring to Figure 5 , the slurry supply system can also adopt an independent slurry supply station 400. The slurry supply station 400 includes a containing box 410 and a slurry pump 420. The feed inlet of the slurry pump 420 extends into the containing box 410, and a hose 1 is connected to the discharge outlet of the slurry pump 420.

[0049] During use, slurry is injected into the containing box 410, and the slurry is conveyed from the hose 1 to the cavity 301 through the slurry pump 420. The slurry pump 420 can adopt a small diaphragm pump. The inner hole diameter of the hose 1 is 3 to 5 mm.

[0050] Embodiment 2: Based on Embodiment 1, the present invention also discloses a width fixing system for a phosphogypsum board production line, including a side feeding device for the phosphogypsum board production line, and further including a width fixing device 500. Through the above structure, the width, height shaping and size control of the phosphogypsum board 200 after slurry replenishment are carried out.

[0051] Specifically, referring to Figure 5 , the conveying belt 100 of the phosphogypsum board production line is provided with a side feeding device for the phosphogypsum board production line on one side or both sides in the width direction, and the support base 10 of the side feeding device for the phosphogypsum board production line is installed and connected to the frame of the phosphogypsum board production line. Figure 5 shows that a side feeding device 300 for the phosphogypsum board production line is installed on one side of the conveying belt 100.

[0052] Specifically, referring to Figure 5 , 6 , 7, the width fixing device 500 includes a fixing plate 510, a pressing plate 520, a width fixing plate 530 and a support plate 540. Two fixing plates 510 are respectively installed on both sides of the frame of the phosphogypsum board production line. The pressing plate 520 is installed and supported on the two fixing plates 510. Two width fixing plates 530 are respectively installed on the pressing plate 520. The support plate 540 is installed on the frame of the phosphogypsum board production line. The support plate 540 is located below the conveying belt 100, and the position of the support plate 540 corresponds to that of the pressing plate 520.

[0053] In the working state, the guiding cone tube 31 on the feeding mechanism 30 aligns with the side of the phosphogypsum board 200 on the conveying belt 100, and the phosphogypsum board 200 passes through between the two width-fixing plates 530 and under the pressing plate 520.

[0054] The two width-fixing plates 530 shape the width of the phosphogypsum board 200 respectively, and the supporting plate 540 and the pressing plate 520 shape the thickness of the phosphogypsum board 200.

[0055] Furthermore, referring to Figure 5 、 6 , the width-fixing system of the phosphogypsum board production line further includes an ultrasonic detection device 600 and a controller 700. The probe 610 of the ultrasonic detection device 600 is installed on the upstream side of the feeding device on the side of the phosphogypsum board production line. The probe 610 corresponds to the edge of the phosphogypsum board 200. The probe 610 is used to detect the defect 201 inside the edge of the phosphogypsum board 200. The probe 610 is electrically connected to the main unit 620, the main unit 620 is electrically connected to the controller 700, and the controller 700 is also electrically connected to the telescopic device 40.

[0056] The defect 201 of the phosphogypsum board 200 is detected by the probe 610 of the ultrasonic detection device 600, so as to realize the automatic feeding of the feeding mechanism 30 through the control of the controller 700. The controller 700 can adopt a PLC.

[0057] Embodiment 3: On the basis of Embodiment 2, referring to Figure 5 、 6 , a width-fixing production method for a phosphogypsum board production line adopts the width-fixing system of the phosphogypsum board production line. The production method includes the following steps: The first step: The defect 201 at the edge of the phosphogypsum board 200 on the conveying belt 100 is detected in real time by the probe 610 of the ultrasonic detection device 600.

[0058] After the defect 201 is detected, the controller 700 controls the telescopic device 40 to act according to the speed of the conveying belt 100 and the center distance between the probe 610 and the feeding mechanism 30; Among them, when the head end of the defect 201 is located at the feeding mechanism 30, the controller 700 controls the telescopic device 40 to extend, so that the guiding conical pipe 31 pierces the wrapping paper on the side of the phosphogypsum board 200. At the same time, the slurry supply system feeds the slurry for filling through the hose 1 to the feeding port 21, and conveys the slurry for filling to the inside of the wrapping paper on the side of the phosphogypsum board 200 through the guiding conical pipe 31; during the feeding process, the cloth ring 33 is driven by the phosphogypsum board 200, and the cloth ring 33 rotates following the phosphogypsum board 200 to perform slurry replenishment; among them, the volume of the slurry replenishment can be calculated based on the defect 201 detected by the probe 610, and the height of the defect 201 is the thickness of the phosphogypsum board 200.

[0059] When the tail end of the defect 201 is located at the feeding mechanism 30, the controller 700 controls the telescopic device 40 to shorten, the guiding conical pipe 31 is withdrawn from the wrapping paper, and the feeding mechanism 30 leaves the phosphogypsum board 200.

[0060] The second step: The phosphogypsum board 200 after slurry replenishment moves downstream along with the conveyor belt 100. The width of the side of the phosphogypsum board 200 is fixed by the upper width-fixing plate 530 of the downstream width-fixing device 500, and the thickness of the edge of the phosphogypsum board 200 is shaped by the pressing plate 520 and the supporting plate 540.

[0061] Although the specific embodiments of the present invention are described above, those skilled in the art of this technology should understand that the specific embodiments we described are illustrative rather than used to limit the scope of the present invention. Effective modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be covered by the scope protected by the claims of the present invention.

Claims

1. A side feeding device (300) for a phosphogypsum sheet production line, characterized in that: It includes a support base (10), on which a moving base (20) is installed to slide directionally. A feeding mechanism (30) is installed on the lower side of the moving base (20). A telescopic device (40) is also installed on the support base (10), and the telescopic device (40) is connected to the moving base (20) to drive the moving base (20) to reciprocate. The feeding mechanism (30) includes a material guiding conical tube (31), a fixed bin (32), and a cloth ring (33). The fixed bin (32) is a cylindrical structure with a cavity (301). The cloth ring (33) is rotatably sleeved on the outer wall of the fixed bin (32). A first feeding hole (321) is provided on the circumferential wall of the fixed bin (32). A plurality of second feeding holes (331) are provided on the circumferential wall of the cloth ring (33). The material guiding conical tube (31) is fixedly installed on the outer wall of the cloth ring (33) at a position corresponding to each second feeding hole (331). When the cloth ring (33) rotates, at least one second feeding hole (331) is located in the first feeding hole (321). An inlet (21) for conveying slurry into the cavity (301) is provided on the moving base (20). In the use state, the inlet (21) is communicated with the slurry supply system through a hose (1).

2. The side feeding device (300) of the phosphogypsum board production line according to claim 1, characterized in that: The support base (10) includes a horizontal support plate (11). A dovetail chute (111) is provided on the lower side of the horizontal support plate (11). The moving base (20) has a dovetail slider structure adapted to slide with the dovetail chute (111). The moving base (20) is slidably connected to the dovetail chute (111). A window (112) for avoiding the inlet (21) is provided on the horizontal support plate (11). A vertical support plate (13) is fixedly connected to the lower side of the horizontal support plate (11), and the vertical support plate (13) is used for installing and fixing to the frame of the phosphogypsum board production line.

3. The side feeding device (300) for a phosphogypsum sheet production line according to claim 2, characterized in that: The telescopic device (40) is a cylinder. A support (12) is fixedly installed at one end of the upper side of the horizontal support plate (11). The cylinder body end of the cylinder is installed on the support (12). The piston rod end of the cylinder is installed with a connection plate (41). After the connection plate (41) passes through the window (112), it is fixedly connected to the moving base (20).

4. The side feeding device (300) for a phosphogypsum sheet production line according to claim 1, characterized in that: An installation position (325) is provided on the outer circumferential wall of the fixed bin (32). The outer diameter of the installation position (325) is smaller than the outer diameter of the fixed bin (32), so that a limiting step (326) is formed on the outer wall of the fixed bin (32). The cloth ring (33) is movably sleeved on the installation position (325). A clamping groove is provided on the lower side of the installation position (325) where the cloth ring (33) is located, and a snap ring (327) is installed in the clamping groove. At least one first sealing groove (332) is respectively provided on the upper and lower sides of the inner wall of the cloth ring (33) where the second feeding holes (331) are located, and sealing rings are installed in the first sealing grooves (332).

5. The side feeding device (300) for a phosphogypsum sheet production line according to claim 1, characterized in that: The top of the fixed bin (32) is open, and the outer wall of the top of the fixed bin (32) is provided with a flange (322) protruding outward. The top surface of the flange (322) is provided with a second sealing groove (324), and a sealing ring is installed in the second sealing groove (324). After the threaded ends of a plurality of screws (323) pass through the flange (322), they are screwed and fixed to the moving seat (20).

6. The side feeding device (300) for a phosphogypsum sheet production line according to claim 1, characterized in that: The material guiding conical tube (31) includes a conical thorn part (311). A channel (312) is arranged inside the conical thorn part (311), and a notch (313) is arranged at the tip of the conical thorn part (311).

7. The side feeding device (300) for a phosphogypsum board production line according to claim 1, characterized in that: The slurry supply system is an independent slurry supply station (400). The slurry supply station (400) includes a receiving tank (410) and a slurry pump (420). The feed inlet of the slurry pump (420) extends into the receiving tank (410), and a hose (1) is connected to the discharge outlet of the slurry pump (420).

8. A width - fixing system for a phosphogypsum board production line, characterized in that: It includes a side feeding device (300) for a phosphogypsum board production line as described in any one of claims 1 to 7, and further includes a width fixing device (500). The conveying belt (100) of the phosphogypsum board production line is installed with the side feeding device for the phosphogypsum board production line on one side or both sides in the width direction. The support seat (10) of the side feeding device for the phosphogypsum board production line is installed and connected to the frame of the phosphogypsum board production line. The width fixing device (500) includes a fixing plate (510), a pressing plate (520), a width fixing plate (530) and a support plate (540). The two fixing plates (510) are respectively installed on both sides of the frame of the phosphogypsum board production line. The pressing plate (520) is installed and supported on the two fixing plates (510). The two width fixing plates (530) are respectively installed on the pressing plate (520). The support plate (540) is installed on the frame of the phosphogypsum board production line. The support plate (540) is located below the conveying belt (100), and the position of the support plate (540) corresponds to that of the pressing plate (520). In the use state, the material guiding conical tube (31) on the feeding mechanism (30) is aligned with the side of the phosphogypsum board (200) on the conveying belt (100), and the phosphogypsum board (200) passes through between the two width fixing plates (530) and below the pressing plate (520).

9. The width fixing system of the phosphogypsum sheet production line according to claim 8, characterized in that: It further includes an ultrasonic detection device (600) and a controller (700). The probe (610) of the ultrasonic detection device (600) is installed on the upstream side of the side feeding device (300) for the phosphogypsum board production line. The probe (610) corresponds to the edge of the phosphogypsum board (200). The probe (610) is used to detect the defect (201) inside the edge of the phosphogypsum board (200). The probe (610) is electrically connected to the main unit (620). The main unit (620) is electrically connected to the controller (700). The controller (700) is also electrically connected to the telescopic device (40).

10. A method for width-fixed production of a phosphogypsum sheet production line, characterized in that: Adopting the width fixing system for the phosphogypsum board production line as described in claim 9, the production method includes the following steps: The defect (201) at the edge of the phosphogypsum board (200) on the conveying belt (100) is detected in real time by the probe (610) of the ultrasonic detection device (600). After detecting the defect (201), the controller (700) controls the telescopic device (40) to act according to the speed of the conveyor belt (100) and the center distance between the probe (610) and the filling mechanism (30); when the head end of the defect (201) is located at the filling mechanism (30), the controller (700) controls the telescopic device (40) to extend, so that the guiding cone tube (31) pierces the wrapping paper on the side of the phosphogypsum board (200), and at the same time the slurry supply system supplies slurry to the feed port (21) through the hose (1), and conveys the slurry for filling to the inside of the wrapping paper on the side of the phosphogypsum board (200) through the guiding cone tube (31); during the filling process, the cloth ring (33) rotates following the phosphogypsum board (200). When the tail end of the defect (201) is located at the filling mechanism (30), the controller (700) controls the telescopic device (40) to shorten, the guiding cone tube (31) is withdrawn from the wrapping paper, and the filling mechanism (30) leaves the phosphogypsum board (200). The phosphogypsum board (200) after slurry filling moves downstream following the conveyor belt (100), and the side width of the phosphogypsum board (200) is fixed by the width-fixing plate (530) on the downstream width-fixing device (500), and the thickness of the edge of the phosphogypsum board (200) is shaped by the pressing plate (520) and the supporting plate (540).

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