Multi-stage crushing and screening integrated device for producing gypsum powder

Abstract

The invention discloses a multi-stage crushing and screening integrated device for producing gypsum powder, and relates to the technical field of gypsum powder processing, the multi-stage crushing and screening integrated device comprises a crushing bin and a screening bin, the crushing bin is fixedly mounted at the top of the screening bin, a crushing mechanism is arranged on the crushing bin, and a feeding mechanism is arranged in the crushing bin; the feeding mechanism comprises a feeding barrel and an auger rod, the feeding barrel is vertically and fixedly installed in the middle of the interior of the smashing bin, and the auger rod is movably installed in the feeding barrel; the discharging opening is formed in the side wall of the feeding barrel, and the movable plate is movably installed in the feeding barrel through a hinge shaft; the air inlet is formed in the side wall of the feeding barrel and located above the discharging opening, and the dust suction pipe is arranged above the smashing bin. According to the gypsum block crushing and screening device, the effect of collecting dust generated during crushing and screening can be achieved while gypsum blocks can be rapidly and thoroughly crushed.

Description

Technical Field

[0001] The present invention relates to the technical field of gypsum powder processing, and in particular to a multi-stage crushing and screening integrated device for producing gypsum powder. Background Art

[0002] After gypsum is mined, it needs to be pre-processed before being put into the required industries. Mainly, larger stone impurities inside the gypsum are removed by crushing.

[0003] After retrieval, a Chinese patent with the publication number CN215996904U discloses a gypsum crushing device with multi-stage screening function, which relates to the technical field of gypsum processing. It includes a base, on the upper surface of the base is fixedly connected with a frame, on the upper surface of the base is fixedly connected with an aggregate tank, and above the frame is provided a crushing mechanism. It can thoroughly crush gypsum ore through the setting of the crushing mechanism, making it easier to remove impurities from the gypsum. Through the setting of the screening mechanism, larger stones or other impurities in the gypsum can be screened multiple times, achieving a higher purity of the gypsum powder. At the same time, it avoids the problem of low transportation efficiency due to a large amount of impurities during the transportation of gypsum. Through the setting of the mutually staggered stirring blades, it can avoid the occurrence of crushing dead angles inside the crushing chamber and improve the crushing efficiency of gypsum. Through the setting of the limiting plate, it can limit the output shaft of the second rotating motor and avoid the vibration generated when the output shaft of the second rotating motor rotates.

[0004] However, the above invention has the following deficiencies:

[0005] When the above device is in use, since the top is open, a large amount of powder will escape into the air during crushing. At the same time, during the crushing process of gypsum, due to the action of gravity, larger gypsum blocks are difficult to be driven to rotate and crush, and will accumulate at the bottom of the device. As a result, it takes more time to completely crush them. If the crushing time is short, incomplete crushing will occur. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-stage crushing and screening integrated device for producing gypsum powder to solve the problems raised in the above background art.

[0007] The technical solution of the present invention is: A multi-stage crushing and screening integrated device for producing gypsum powder, including a crushing chamber and a screening chamber. The crushing chamber is fixedly installed on the top of the screening chamber. A crushing mechanism is provided on the crushing chamber, and a feeding mechanism is arranged inside the crushing chamber;

[0008] The feeding mechanism includes:

[0009] The feeding cylinder and the auger rod. The feeding cylinder is vertically and fixedly installed at the middle position inside the crushing bin, and the auger rod is movably installed inside the feeding cylinder;

[0010] The discharge port and the movable plate. The discharge port is opened on the side wall of the feeding cylinder, and the movable plate is movably installed inside the movable plate through a hinge shaft;

[0011] The air inlet, the dust suction pipe and the air inlet filter screen. The air inlet is opened on the side wall of the feeding cylinder and above the discharge port. The dust suction pipe is arranged above the crushing bin. The top of the auger rod is of a hollow structure. The bottom of the dust suction pipe penetrates downward through the transmission gear and is movably connected with the auger rod. The dust suction pipe is communicated with the inside of the auger rod, and the other end of the dust suction pipe is connected with an external bag-type dust removal device. The air inlet filter screen is inlaid and installed above the side wall of the auger rod;

[0012] The second sealing plate and the push rod. The second sealing plate is movably installed inside the feeding cylinder at the position corresponding to the air inlet through a torsion spring shaft, and the push rod is fixedly installed on the outer side wall of the movable plate.

[0013] Preferably, the crushing mechanism includes a driving motor one, a crushing shaft, a first crushing rod, a transmission gear, a transmission belt and a second crushing rod. The driving motor one is fixedly installed on the top of the crushing bin. There are two crushing shafts in total. The two crushing shafts are movably installed left and right inside the crushing bin. The output end of the driving motor one is fixedly connected with one of the crushing shafts. There are multiple first crushing rods in total. The multiple first crushing rods are evenly distributed and fixedly installed on the side wall of the crushing shaft. There are three transmission gears in total. Two of the transmission gears are respectively fixedly installed on the tops of the two crushing shafts. The transmission belt is movably sleeved between the two transmission gears. The transmission belt meshes and drives with the two transmission gears. There are multiple second crushing rods in total. The multiple second crushing rods are evenly distributed and fixedly installed on the side wall of the crushing bin.

[0014] Preferably, the top of the auger rod penetrates upward through the top wall surface of the crushing bin. One of the transmission gears is fixedly installed on the top of the auger rod. The transmission gear at the top of the auger rod is located inside the transmission belt and meshes and drives with the transmission belt.

[0015] Preferably, a partition board is installed between the crushing bin and the screening bin through a push rod device. A discharge opening is opened on the crushing bin. A first sealing plate is movably installed inside the discharge opening. Multiple screening boxes are movably installed up and down inside the screening bin. A first sieve plate is movably installed inside each of the multiple screening boxes through a torsion spring shaft. The first sieve plates are obliquely arranged, and the mesh numbers of the multiple first sieve plates gradually increase from top to bottom. A second collection box is movably installed below the inside of the screening bin.

[0016] Preferably, the screening bin is provided with a driving mechanism, the driving mechanism includes a transmission block 1, a mounting plate, a transmission plate 1, a driving motor 2, a rotating shaft, a rotating plate, a driving shaft and a driving ring plate. The transmission block 1 is movably mounted on the right side wall of the screening box, the mounting plate is fixedly mounted on the right side outer wall of the screening bin, the transmission plate 1 is arranged at a position on the right side outer wall of the screening bin corresponding to the transmission block 1, a rectangular groove is provided on the transmission plate 1 at a position corresponding to the transmission block 1, the transmission block 1 is located inside the rectangular groove on the transmission plate 1, the driving motor 2 is fixedly mounted on the mounting plate, the rotating shaft is fixedly mounted on the output end of the driving motor 2 and passes through the side wall of the mounting plate, the rotating plate is a circular plate, the rotating plate is fixedly mounted on the rotating shaft, the driving shaft is fixedly mounted on the rotating plate at a position away from the center of the circle, the driving shaft is located above the inside of the driving ring plate, and the bottom of the driving ring plate is fixedly connected to the transmission plate 1.

[0017] Preferably, a back plate is fixedly installed inside the screening bin at a position corresponding to the screening box, a reset rod is fixedly installed on the left wall of the screening box, the reset rod passes through the side wall of the back plate, and a reset spring is sleeved on the reset rod.

[0018] Preferably, a discharge port is opened on the left side wall of the screening box, and a discharge plate is movably installed inside the discharge port through a torsion spring shaft. The discharge plate seals the inside of the discharge port, and a resistance block is fixedly installed on the side wall of the resistance plate at a position corresponding to the discharge plate, and a collecting box 1 is movably installed on the left side of the interior of the screening bin at a position corresponding to the screening box.

[0019] Preferably, a baffle is provided above the interior of the screening bin, and a plurality of material distribution openings are provided on the baffle. A material distribution plate is movably installed inside the material distribution opening through a torsion spring shaft, and the material distribution plate can be flipped downward. Transmission blocks 2 are fixedly installed on the top of the plurality of material distribution plates, and the transmission blocks 2 are triangular blocks, and the inclined surface angles of the plurality of transmission blocks 2 gradually decrease toward the left side. A transmission plate 2 is provided on the baffle, and the other end of the transmission plate 2 is fixedly connected to the upper screening box. A transmission groove is provided on the transmission plate 2 at a position corresponding to the transmission block 2, and the transmission block 2 is located inside the transmission groove. A reset spring 2 is movably connected between the transmission plate 2 and the screening bin.

[0020] Preferably, a connecting rod is fixedly installed at the bottom of each of the plurality of dividing plates, a paving plate is fixedly installed at the bottom of the connecting rod, and the lengths of the plurality of connecting rods gradually become shorter from left to right.

[0021] Preferably, a transmission rack is movably installed on the right side of the bottom of the screen plate one, and an adjusting gear is rotatably installed on the screening box. The adjusting gear is a cylindrical structure with a thread on the side wall. One end of the adjusting gear is located inside the transmission block one and is threadedly connected to the transmission block one. An adjusting shaft is installed on the adjusting gear at a position corresponding to the transmission rack, and the adjusting shaft is meshed with the transmission rack for transmission.

[0022] The present invention provides a multi-stage crushing and screening integrated device for producing gypsum powder through improvement, which has the following improvements and advantages compared with the prior art:

[0023] First, the present invention is provided with a feeding mechanism. When the driving motor is started to crush the gypsum through the crushing shaft and the crushing rod, the larger gypsum blocks that are not completely crushed will accumulate at the lower part of the crushing bin, and the auger rod can be driven to rotate through the transmission gear and the transmission belt. When the gypsum block is near the bottom of the feeding barrel, the rotation of the auger rod can drive the gypsum block to move upward inside the feeding barrel. When the gypsum block moves to the position of the movable plate, the gypsum block will squeeze the movable plate, and then the movable plate will flip. At this time, the gypsum block can leave the interior of the feeding barrel through the discharge port. After leaving the interior of the feeding barrel, the gypsum block moves downward, and then it will be crushed again by the crushing rod, and this reciprocating process can achieve the effect of completely crushing the gypsum block. At the same time, the dust suction pipe is connected to the external bag-type dust removal equipment, and the gypsum block is When the material is discharged from the interior of the loading barrel through the discharge port, the movable plate flips and drives the push rod to squeeze the sealing plate 2. At this time, suction can be generated inside the loading barrel through the dust suction pipe, and the suction can be transmitted to the inside of the crushing bin through the air inlet. At this time, the dust generated by the crushing of the gypsum block will be sucked into the interior of the loading barrel. At the same time, an air intake filter is provided, and larger gypsum particles will not be sucked into the interior of the auger rod, while the dust will be sucked into the interior of the dust suction pipe along with the air and then collected. At the same time, when the crushing is completed, the movable plate will be reset, and the air inlet will be closed. At this time, air can be exhausted from the bottom of the loading barrel to remove dust, and then the dust generated by the screened gypsum can be sucked away, thereby achieving the effect of quickly and thoroughly crushing the gypsum block and collecting the dust generated during crushing and screening.

[0024] Secondly, the present invention starts driving motor 2 by setting a driving mechanism. Driving motor 2 drives the rotating plate to rotate through the rotating shaft. The rotation of the rotating plate can drive the driving shaft to rotate. The driving shaft is located inside the driving ring plate. When the driving shaft rotates with the rotating shaft as the center, it will drive the driving ring plate to move up and down. The driving ring plate then drives the transmission plate 1 to move up and down. When the transmission plate 1 moves downward, it will squeeze the transmission block 1. After the inclined surface of the transmission block 1 is squeezed, it will move toward the direction of the screening box, thereby driving the screening box to move. The screening box then squeezes the reset spring 1. After the squeezing, the transmission plate 1 resets upward, thereby resetting the screening box. In this way, the screening box can do horizontal reciprocating motion, thereby accelerating the screening rate of the gypsum block of the screen plate.

[0025] Third: In the present invention, when the crushing bin is unloading, the gypsum powder will first fall onto the baffle, and when the transmission plate 2 moves, the transmission plate 2 will squeeze the transmission block 2. When the transmission block 2 is squeezed, it will drive the dividing plate to flip over, and because the angles of multiple transmission blocks 2 are different, the flipping angles of multiple dividing plates will also be inconsistent. The larger the flipping angle of the dividing plate close to the right side, the gypsum powder on the baffle can fall onto the lower sieve plate 1 through multiple dividing ports, so that the gypsum powder can be dispersed and fall to various places on the sieve plate 1, avoiding the situation that the gypsum powder only falls on one place on the sieve plate 1. The more gypsum powder falls on the right side of the sieve plate, the more time the gypsum powder is screened on the sieve plate 1, thereby improving the screening effect.

[0026] Fourthly, in the present invention, when the dividing plate is flipped, the connecting rod and the paving plate will move on the surface of the sieve plate one as the dividing plate is flipped, so that the gypsum powder on the sieve plate one can be paved by the paving plate, thereby achieving the effect of evenly distributing the gypsum, thereby accelerating the screening speed of the gypsum powder on the sieve plate one.

[0027] Fifth: In the present invention, when there is a lot of gypsum powder on the sieve plate 1, the sieve plate 1 will drive the transmission rack to move downward under the action of gravity, and the transmission rack will mesh with the adjusting shaft for transmission, and the adjusting shaft will drive the adjusting gear to rotate, and the adjusting gear will be threadedly connected with the transmission block 1, and the transmission block 1 will move. When there is a lot of gypsum powder, the transmission block 1 will move toward the right side, and when there is less gypsum powder, the transmission block 1 will move toward the left side. When the transmission block 1 moves toward the right side, the inclined surface of the transmission block 1 squeezed by the transmission plate 1 becomes longer, thereby increasing the amplitude of the back and forth movement of the screening box. When the transmission block 1 moves toward the left side, the inclined surface of the transmission block 1 squeezed by the transmission plate 1 becomes shorter, and the amplitude of the back and forth movement of the screening box becomes smaller, thereby achieving the effect of adjusting the vibration amplitude of the screening box according to the amount of screened gypsum powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the feeding mechanism in the present invention;

[0032] Figure 4 For the present invention Figure 2 Enlarged view of point A in the middle;

[0033] Figure 5 For the present invention Figure 2 Enlarged view of point B in the middle;

[0034] Figure 6 It is a schematic diagram of the driving mechanism structure in the present invention;

[0035] Figure 7 For the present invention Figure 2 Enlarged view of center C.

[0036] Reference numerals:

[0037] 1. Crushing bin; 2. Screening bin; 3. Driving motor 1; 4. Crushing shaft; 5. Crushing rod 1; 6. Transmission gear; 7. Transmission belt; 8. Loading barrel; 9. Auger rod; 10. Discharge port; 11. Movable plate; 12. Air inlet; 13. Dust suction pipe; 14. Air inlet filter; 15. Discharge port; 16. Sealing plate 1; 17. Crushing rod 2; 18. Screening box; 19. Screen plate 1; 20. Transmission block 1; 21. Mounting plate; 22. Transmission plate 1; 23. Driving motor 2; 24. Rotating shaft; 25. Rotating plate; 26. Drive shaft; 27, drive ring plate; 28, stop plate; 29, reset rod; 30, reset spring 1; 31, discharge port; 32, discharge plate; 33, stop block; 34, baffle; 35, distribution port; 36, distribution plate; 37, transmission block 2; 38, transmission plate 2; 39, transmission groove; 40, reset spring 2; 41, connecting rod; 42, paving plate; 43, transmission rack; 44, adjusting gear; 45, adjusting shaft; 46, collection box 1; 47, collection box 2; 48, partition; 49, sealing plate 2; 50, push rod. DETAILED DESCRIPTION

[0038] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] The present invention provides a multi-stage crushing and screening integrated device for producing gypsum powder through improvement. The technical solution of the present invention is:

[0040] like Figures 1 to 7As shown, an embodiment of the present invention provides a multi-stage crushing and screening integrated device for producing gypsum powder, including a crushing bin 1 and a screening bin 2, both of which are hollow structures, the crushing bin 1 is fixedly installed on the top of the screening bin 2, the crushing bin 1 and the screening bin 2 are connected to each other, a crushing mechanism is arranged on the crushing bin 1, the crushing mechanism includes a driving motor 3, a crushing shaft 4, a crushing rod 5, a transmission gear 6, a transmission belt 7 and a crushing rod 17, the driving motor 3 is fixedly installed on the top of the crushing bin 1, the crushing shaft 4 is a cylindrical structure, there are two crushing shafts 4, the two crushing shafts 4 are movably installed in the crushing bin 1, the output end of the driving motor 3 is fixedly connected to one of the crushing shafts 4, there are a plurality of crushing rods 5, and the plurality of crushing rods 5 are distributed It is evenly fixed on the side wall of the crushing shaft 4. There are three transmission gears 6, two of which are fixed on the tops of the two crushing shafts 4 respectively. The transmission belt 7 is movably sleeved between the two transmission gears 6. The transmission belt 7 is meshed with the two transmission gears 6 for transmission. There are multiple crushing rods 17, and multiple crushing rods 17 are evenly distributed and fixed on the side wall of the crushing bin 1. Start the driving motor 3, the driving motor 3 drives one of the crushing shafts 4 to rotate, the crushing shaft 4 drives the transmission gear 6 to rotate, and then drives the other crushing shaft 4 to rotate through the transmission belt 7, the crushing shaft 4 drives the crushing rod 5 to rotate, and the rotation of the crushing rod 5 can crush the gypsum inside the crushing bin 1 through the shearing between the crushing rod 17 and the crushing rod 2, and a feeding mechanism is provided inside the crushing bin 1;

[0041] The feeding mechanism includes a feeding barrel 8, an auger rod 9, a discharge port 10, a movable plate 11, an air inlet 12, a dust suction pipe 13, an air inlet filter 14, a sealing plate 49 and a push rod 50. The feeding barrel 8 is a hollow cylindrical structure. The feeding barrel 8 is vertically fixedly installed in the middle position inside the crushing bin 1. The auger rod 9 is movably installed inside the feeding barrel 8. The top of the auger rod 9 penetrates the top wall of the crushing bin 1 upward. One of the transmission gears 6 is fixedly installed on the top of the auger rod 9. The transmission gear 6 at the top of the auger rod 9 is located inside the transmission belt 7 and meshes with the transmission belt 7 for transmission. The diameter of the transmission gear 6 on the auger rod 9 is larger than that of the other two transmission gears 6. The discharge port 10 is a groove of a rectangular structure. The discharge port 10 is opened on the side wall of the feeding barrel 8. The movable plate 1 1 is a rectangular plate, the movable plate 11 is movably installed inside the movable plate 11 through a hinge shaft, the air inlet 12 is a rectangular groove, the air inlet 12 is opened on the side wall of the feeding barrel 8 and is located above the discharge port 10, the dust suction pipe 13 is arranged above the crushing bin 1, the top of the auger rod 9 is a hollow structure, the bottom of the dust suction pipe 13 penetrates the transmission gear 6 downward and is movably connected to the auger rod 9, the dust suction pipe 13 is connected to the inside of the auger rod 9, and the other end of the dust suction pipe 13 is connected to an external bag dust removal device, the air intake filter 14 is embedded and installed above the side wall of the auger rod 9, the sealing plate 49 is movably installed in the inner part of the feeding barrel 8 at the position corresponding to the air inlet 12 through a torsion spring shaft, and the push rod 50 is fixedly installed on the outer wall of the movable plate 11 through the feeding barrel. According to the setting of the mechanism, when the driving motor 3 is started to crush the gypsum through the crushing shaft 4 and the crushing rod 5, the larger gypsum blocks that are not completely crushed will accumulate at the bottom of the crushing bin 1, and the auger rod 9 can be driven to rotate through the transmission gear 6 and the transmission belt 7. When the gypsum block is near the bottom of the upper barrel 8, the rotation of the auger rod 9 can drive the gypsum block to move upward inside the upper barrel 8. When the gypsum block moves to the position of the movable plate 11, the gypsum block will squeeze the movable plate 11, and then the movable plate 11 will flip. At this time, the gypsum block can leave the interior of the upper barrel 8 through the discharge port 10. After leaving the interior of the upper barrel 8, the gypsum block moves downward, and then it will be crushed again by the crushing rod 5, and this reciprocating process is used to achieve the goal of completely crushing the gypsum block. The dust collecting pipe 13 is connected with the external bag dust collecting equipment. When the gypsum block is discharged from the interior of the upper barrel 8 through the discharge port 10, the movable plate 11 flips and drives the push rod 50 to squeeze the sealing plate 49. At this time, suction can be generated inside the upper barrel 8 through the dust collecting pipe 13, and the suction can be transmitted to the interior of the crushing bin 1 through the air inlet 12. At this time, the dust generated by the crushing of the gypsum block will be sucked into the interior of the upper barrel 8. At the same time, an air intake filter 14 is provided, and larger gypsum particles will not be sucked into the interior of the auger rod 9, while the dust will be sucked into the interior of the dust collecting pipe 13 along with the air and then collected. At the same time, when the crushing is completed, the movable plate 11 will be reset, and the air inlet 12 will be closed. At this time, air extraction and dust removal can be carried out from the bottom of the upper barrel 8.Then the dust generated by screening gypsum is sucked away.

[0042] A partition 48 is installed between the crushing bin 1 and the screening bin 2 through a push rod device. The partition 48 can separate the crushing bin 1 and the screening bin 2. When the crushing is completed, the partition 48 can be driven to move. At this time, the gypsum powder will fall into the screening bin 2 and be screened. A discharge port 15 is opened on the crushing bin 1. The discharge port 15 is a rectangular groove. A sealing plate 16 is movably installed inside the discharge port 15. Gypsum is added to the inside of the crushing bin 1 through the discharge port 15. The sealing plate 16 can seal the inside of the crushing bin 1 to prevent dust from escaping.

[0043] A plurality of screening boxes 18 are movably installed on the upper and lower parts of the screening bin 2. The screening box 18 is a hollow rectangular structure. A sieve plate 19 is movably installed on the interior of the plurality of screening boxes 18 through a torsion spring shaft. The sieve plate 19 is obliquely arranged, and the mesh size of the plurality of sieve plates 19 gradually increases from top to bottom. A collecting box 2 47 is movably installed at the lower part of the screening bin 2. The crushed gypsum powder will fall into the interior of the screening box 18 and be screened by the sieve plate 19. Through the arrangement of the plurality of screening boxes 18 and the sieve plate 19, multi-stage screening can be performed, and the screened gypsum powder can fall into the interior of the collecting box 2 47 and be collected. A driving mechanism is arranged on the screening bin 2, and the driving mechanism includes a transmission block 20, a mounting plate 21, a transmission plate 22, a driving motor 23, a rotating shaft 24, a rotating plate 25, a driving shaft 26 and a driving ring plate 27. The transmission block 20 is a block of a trapezoidal structure. The transmission block 20 is movably installed on the right side wall of the screening box 18. The mounting plate 21 is a plate of rectangular structure, which is fixedly mounted on the right outer wall of the screening bin 2. The transmission plate 22 is a plate of rectangular structure, which is arranged at the position of the transmission block 20 on the right outer wall of the screening bin 2. A rectangular groove is provided on the transmission plate 22 at the position corresponding to the transmission block 20, and the transmission block 20 is located inside the rectangular groove on the transmission plate 22. The driving motor 23 is fixedly mounted on the mounting plate 21. The rotating shaft 24 is a cylindrical structure, which is fixedly mounted on the output end of the driving motor 23 and passes through the side wall of the mounting plate 21. The rotating plate 25 is a circular plate, which is fixedly mounted on the rotating shaft 24. The driving shaft 26 is a cylindrical structure, which is fixedly mounted on the rotating plate 25 at a position away from the center of the circle. The driving ring plate 27 is a hollow rectangular structure, which is located above the inner part of the driving ring plate 27, and the bottom of the driving ring plate 27 is fixedly connected to the transmission plate 22.

[0044] A back plate 28 is fixedly installed at the position corresponding to the screening box 18 inside the screening bin 2. The back plate 28 is a rectangular plate. A reset rod 29 is fixedly installed on the left wall of the screening box 18. The reset rod 29 is a cylindrical structure. The reset rod 29 passes through the side wall of the back plate 28. A reset spring 30 is sleeved on the reset rod 29. Through the setting of the driving mechanism, the driving motor 23 is started. The driving motor 23 drives the rotating plate 25 to rotate through the rotating shaft 24. The rotation of the rotating plate 25 can drive the driving shaft 26 to rotate. The driving shaft 26 is located inside the driving ring plate 27. When the driving shaft 26 is rotated with the rotating shaft 24 as When the center of the circle rotates, it will drive the driving ring plate 27 to move up and down, and the driving ring plate 27 will then drive the transmission plate 22 to move up and down. When the transmission plate 22 moves downward, it will squeeze the transmission block 20. After the inclined surface of the transmission block 20 is squeezed, it will move toward the direction of the screening box 18, thereby driving the screening box 18 to move. The screening box 18 will then squeeze the reset spring 30. After the extrusion, the transmission plate 22 will reset upward, thereby resetting the screening box 18. In this way, the screening box 18 can do horizontal reciprocating motion, thereby accelerating the screening rate of the screen plate 19 for the gypsum block.

[0045] The left side wall of the screening box 18 is provided with a feeding opening 31, and the feeding opening 31 is a rectangular groove. A feeding plate 32 is movably installed inside the feeding opening 31 through a torsion spring shaft. The feeding plate 32 is a rectangular plate. The feeding plate 32 seals the inside of the feeding opening 31. A stop block 33 is fixedly installed on the side wall of the stop plate 28 at a position corresponding to the feeding plate 32. The stop block 33 is a rectangular block. A collecting box 46 is movably installed on the left side of the interior of the screening bin 2 at a position corresponding to the screening box 18. When the screening box 18 moves toward the left side, the stop block 33 will squeeze the feeding plate 32, so that the feeding plate 32 can be flipped toward the right side. Since the sieve plate 19 is inclined, the impurities filtered out by the sieve plate 19 or the small pieces that are difficult to crush will move toward the left side along the inclined surface of the sieve plate 19. When the feeding plate 32 is flipped, the impurities or the small pieces that are difficult to crush can fall into the collecting box 46 through the feeding opening 31 and be collected.

[0046] A baffle plate 34 is provided on the upper part of the screening bin 2. The baffle plate 34 is a rectangular plate obliquely arranged to the right. A plurality of material distribution openings 35 are provided on the baffle plate 34. The material distribution openings 35 are grooves of rectangular structure. A material distribution plate 36 is movably installed inside the material distribution opening 35 through a torsion spring shaft. The material distribution plate 36 is a plate of rectangular structure. The material distribution plate 36 can be flipped downward. A transmission block 2 37 is fixedly installed on the top of the plurality of material distribution plates 36. The transmission block 2 37 is a triangular block, and the inclined surface angles of the plurality of transmission blocks 2 37 gradually decrease toward the left side. A transmission plate 2 38 is provided on the baffle plate 34. The transmission plate 2 38 is a long strip of rectangular structure. The other end of the transmission plate 2 38 is fixedly connected to the upper screening box 18. A transmission groove 39 is provided on the transmission plate 2 38 at a position corresponding to the transmission block 2 37. The transmission groove 39 is a groove of rectangular structure. The transmission block 2 37 is located inside the transmission groove 39. A reset spring is movably connected between the transmission plate 2 38 and the screening bin 2. 240, when the screening box 18 moves toward the left side, the screening box 18 will drive the transmission plate 2 38 to move together, and when the crushing bin 1 is unloading, the gypsum powder will first fall on the baffle plate 34, and when the transmission plate 2 38 moves, the transmission plate 2 38 will squeeze the transmission block 2 37, and when the transmission block 2 37 is squeezed, it will drive the dividing plate 36 to flip, and because the angles of the plurality of transmission blocks 2 37 are different, the flipping angles of the plurality of dividing plates 36 will also be inconsistent, and the larger the flipping angle of the dividing plate 36 close to the right side, the gypsum powder on the baffle plate 34 can fall onto the lower sieve plate 19 through the plurality of dividing openings 35, so that the gypsum powder can be dispersed and fall to various places of the sieve plate 19, avoiding the situation that the gypsum powder only falls on one place on the sieve plate 19, and the more gypsum powder falls on the right side of the sieve plate 19, the more time the gypsum powder is screened on the sieve plate 19 can be increased, thereby improving the screening effect;

[0047] A connecting rod 41 is fixedly installed at the bottom of the multiple dividing plates 36. The connecting rod 41 is a rod with a rectangular structure. A paving plate 42 is fixedly installed at the bottom of the connecting rod 41. The paving plate 42 is a rectangular plate with multiple tooth structures, and the length of the multiple connecting rods 41 gradually shortens from left to right, so that when the dividing plates 36 are flipped, the connecting rods 41 and the paving plate 42 will move on the surface of the sieve plate 19 as the dividing plates 36 are flipped, so that the gypsum powder on the sieve plate 19 can be flattened by the paving plate 42, thereby achieving the effect of evenly distributing the gypsum, thereby accelerating the screening speed of the sieve plate 19 for the gypsum powder.

[0048] A transmission rack 43 is movably installed on the right side of the bottom of the sieve plate 19, and an adjusting gear 44 is rotatably installed on the screening box 18. The adjusting gear 44 is a cylindrical structure with a thread on the side wall. One end of the adjusting gear 44 is located inside the transmission block 20 and is threadedly connected to the transmission block 20. An adjusting shaft 45 is installed at a position corresponding to the transmission rack 43 on the adjusting gear 44. The adjusting shaft 45 is meshed with the transmission rack 43 for transmission, so that when there is more gypsum powder on the sieve plate 19, the sieve plate 19 will drive the transmission rack 43 to move downward under the action of gravity, and the transmission rack 43 is meshed with the adjusting shaft 45 for transmission, and the adjusting shaft 45 will drive the adjusting gear 44. Rotate and adjust the gear 44 to be threadedly connected with the transmission block 20, and the transmission block 20 will move. When there is more gypsum powder, the transmission block 20 will move toward the right side, and when there is less gypsum powder, the transmission block 20 will move toward the left side. When the transmission block 20 moves toward the right side, the inclined surface of the transmission block 20 squeezed by the transmission plate 22 becomes longer, thereby increasing the amplitude of the back and forth movement of the screening box 18. When the transmission block 20 moves toward the left side, the inclined surface of the transmission block 20 squeezed by the transmission plate 22 becomes shorter, and the amplitude of the back and forth movement of the screening box 18 becomes smaller, thereby achieving the effect of adjusting the vibration amplitude of the screening box 18 according to the amount of screened gypsum powder.

[0049] Specific implementation steps: by setting up a crushing mechanism, starting a driving motor 1 3, the driving motor 1 3 drives one of the crushing shafts 4 to rotate, the crushing shaft 4 drives the transmission gear 6 to rotate, and then drives another crushing shaft 4 to rotate through the transmission belt 7, and the crushing shaft 4 drives the crushing rod 1 5 to rotate, and the rotation of the crushing rod 1 5 can crush the gypsum inside the crushing bin 1 through shearing between the crushing rod 2 17;

[0050] Meanwhile, a feeding mechanism is provided. When the driving motor 1 is started to crush gypsum through the crushing shaft 4 and the first crushing rod 5, the larger gypsum blocks that are not thoroughly crushed will accumulate at the lower part inside the crushing bin 1. At the same time, the auger rod 9 can be driven to rotate through the transmission gear 6 and the transmission belt 7. When the gypsum block is near the bottom of the feeding cylinder 8, the rotation of the auger rod 9 can drive the gypsum block to move upward inside the feeding cylinder 8. When the gypsum block moves to the position of the movable plate 11, the gypsum block will squeeze the movable plate 11, and then the movable plate 11 will flip. At this time, the gypsum block can leave the inside of the feeding cylinder 8 through the discharge port 10. After the gypsum block leaves the inside of the feeding cylinder 8, it moves downward and will then be crushed by the first crushing rod 5 again. This process is repeated to achieve the effect of thoroughly crushing the gypsum block. At the same time, the dust suction pipe 13 is connected to an external bag type dust removal device. When the gypsum block is discharged from the inside of the feeding cylinder 8 through the discharge port 10, the flipping of the movable plate 11 drives the push rod 50 to squeeze the second sealing plate 49. At this time, suction can be generated inside the feeding cylinder 8 through the dust suction pipe 13, and the suction can be transmitted to the inside of the crushing bin 1 through the air inlet 12. At this time, the dust generated by crushing the gypsum block will be sucked into the inside of the feeding cylinder 8. At the same time, an air inlet filter screen 14 is provided, and larger gypsum particles will not be sucked into the inside of the auger rod 9, while the dust will be collected after being sucked into the inside of the dust suction pipe 13 along with the air. At the same time, when the crushing is completed, the movable plate 11 will reset, and at this time, the air inlet 12 will be closed. At this time, air can be extracted and dust removed from the lower part of the feeding cylinder 8, thereby sucking away the dust generated by screening the gypsum.

[0051] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-stage crushing and screening integrated device for producing gypsum powder, comprising a crushing bin (1) and a screening bin (2), wherein the crushing bin (1) is fixedly mounted on the top of the screening bin (2), and characterized in that: The crushing bin (1) is provided with a crushing mechanism, and a feeding mechanism is provided inside the crushing bin (1); The feeding mechanism includes: A feeding cylinder (8) and an auger rod (9), wherein the feeding cylinder (8) is vertically fixedly installed in the middle position of the crushing bin (1), and the auger rod (9) is movably installed inside the feeding cylinder (8); A discharge port (10) and a movable plate (11), wherein the discharge port (10) is provided on the side wall of the loading barrel (8), and the movable plate (11) is movably mounted inside the movable plate (11) via a hinge shaft; An air inlet (12), a dust suction pipe (13) and an air inlet filter (14), wherein the air inlet (12) is provided on the side wall of the loading barrel (8) and is located above the discharge port (10), the dust suction pipe (13) is arranged above the crushing bin (1), the top of the auger rod (9) is a hollow structure, the bottom of the dust suction pipe (13) penetrates downward through the transmission gear (6) and is movably connected to the auger rod (9), the dust suction pipe (13) is communicated with the inside of the auger rod (9), the other end of the dust suction pipe (13) is connected to an external bag dust removal device, and the air inlet filter (14) is embedded and installed above the side wall of the auger rod (9); The second sealing plate (49) and the push rod (50) are movably mounted inside the loading barrel (8) at a position corresponding to the air inlet (12) through a torsion spring shaft, and the push rod (50) is fixedly mounted on the outer side wall of the movable plate (11).

2. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 1, characterized in that: The pulverizing mechanism comprises a driving motor (3), a pulverizing shaft (4), a pulverizing rod (5), a transmission gear (6), a transmission belt (7) and a pulverizing rod (17). The driving motor (3) is fixedly mounted on the top of the pulverizing bin (1). There are two pulverizing shafts (4), which are movably mounted on the inside of the pulverizing bin (1) from left to right. The output end of the driving motor (3) is fixedly connected to one of the pulverizing shafts (4). There are a plurality of pulverizing rods (5), which are evenly distributed and fixedly mounted on the side wall of the pulverizing shaft (4). There are three transmission gears (6), two of which are respectively fixedly mounted on the top of the two pulverizing shafts (4). The transmission belt (7) is movably sleeved between the two transmission gears (6), and the transmission belt (7) is meshed with the two transmission gears (6) for transmission. There are a plurality of pulverizing rods (17), which are evenly distributed and fixedly mounted on the side wall of the pulverizing bin (1).

3. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 1, characterized in that: The top of the auger rod (9) penetrates upward through the top wall of the crushing bin (1), and a transmission gear (6) is fixedly mounted on the top of the auger rod (9). The transmission gear (6) at the top of the auger rod (9) is located inside the transmission belt (7) and meshes with the transmission belt (7) for transmission.

4. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 1, characterized in that: A partition (48) is installed between the crushing bin (1) and the screening bin (2) via a push rod device, a discharge port (15) is provided on the crushing bin (1), a sealing plate (16) is movably installed inside the discharge port (15), a plurality of screening boxes (18) are movably installed up and down inside the screening bin (2), a screen plate (19) is movably installed inside the plurality of screening boxes (18) via a torsion spring shaft, the screen plate (19) is obliquely arranged, and the mesh size of the plurality of screen plates (19) gradually increases from top to bottom, and a collecting box (47) is movably installed below the screening bin (2).

5. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 4, characterized in that: The screening bin (2) is provided with a driving mechanism, which comprises a transmission block (20), a mounting plate (21), a transmission plate (22), a driving motor (23), a rotating shaft (24), a rotating plate (25), a driving shaft (26) and a driving ring plate (27). The transmission block (20) is movably mounted on the right side wall of the screening box (18), the mounting plate (21) is fixedly mounted on the right side outer wall of the screening bin (2), the transmission plate (22) is arranged on the right side outer wall of the screening bin (2) at a position corresponding to the transmission block (20), and the transmission plate (22) is opened at a position corresponding to the transmission block (20). A rectangular groove is provided, a transmission block 1 (20) is located inside the rectangular groove on a transmission plate 1 (22), a drive motor 2 (23) is fixedly mounted on a mounting plate (21), a rotating shaft (24) is fixedly mounted on the output end of the drive motor 2 (23) and passes through the side wall of the mounting plate (21), a rotating plate (25) is a circular plate, the rotating plate (25) is fixedly mounted on the rotating shaft (24), a driving shaft (26) is fixedly mounted on the rotating plate (25) at a position away from the center of the circle, the driving shaft (26) is located inside and above a driving ring plate (27), and the bottom of the driving ring plate (27) is fixedly connected to the transmission plate 1 (22).

6. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 4, characterized in that: A stop plate (28) is fixedly installed inside the screening bin (2) at a position corresponding to the screening box (18), and a reset rod (29) is fixedly installed on the left wall of the screening box (18). The reset rod (29) passes through the side wall of the stop plate (28), and a reset spring (30) is sleeved on the reset rod (29).

7. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 4, characterized in that: The left side wall of the screening box (18) is provided with a discharge port (31), and a discharge plate (32) is movably installed inside the discharge port (31) via a torsion spring shaft. The discharge plate (32) seals the inside of the discharge port (31), and a stop block (33) is fixedly installed on the side wall of the stop plate (28) at a position corresponding to the discharge plate (32). A collecting box (46) is movably installed on the left side of the interior of the screening bin (2) at a position corresponding to the screening box (18).

8. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 4, characterized in that: A baffle (34) is arranged above the interior of the screening bin (2), and a plurality of material distribution openings (35) are provided on the baffle (34). A material distribution plate (36) is movably installed inside the material distribution opening (35) through a torsion spring shaft, and the material distribution plate (36) can be flipped downward. A transmission block 2 (37) is fixedly installed on the top of the plurality of material distribution plates (36). The transmission block 2 (37) is a triangular block, and the inclined surface angles of the plurality of transmission blocks 2 (37) gradually decrease toward the left side. A transmission plate 2 (38) is arranged on the baffle (34), and the other end of the transmission plate 2 (38) is fixedly connected to the upper screening box (18). A transmission groove (39) is provided on the transmission plate 2 (38) at a position corresponding to the transmission block 2 (37), and the transmission block 2 (37) is located inside the transmission groove (39). A reset spring 2 (40) is movably connected between the transmission plate 2 (38) and the screening bin (2).

9. The multi-stage crushing and screening integrated device for producing gypsum powder according to claim 8, characterized in that: A connecting rod (41) is fixedly installed at the bottom of each of the plurality of material dividing plates (36), a paving plate (42) is fixedly installed at the bottom of each of the connecting rods (41), and the lengths of the plurality of connecting rods (41) gradually become shorter from left to right.

10. A multi-stage crushing and screening integrated device for producing gypsum powder according to any one of claims 4 to 8, characterized in that: A transmission rack (43) is movably mounted on the right side of the bottom of the sieve plate (19); an adjusting gear (44) is rotatably mounted on the screening box (18); the adjusting gear (44) is a cylindrical structure with a threaded side wall; one end of the adjusting gear (44) is located inside the transmission block (20) and is threadedly connected to the transmission block (20); an adjusting shaft (45) is mounted on the adjusting gear (44) at a position corresponding to the transmission rack (43); the adjusting shaft (45) is meshed with the transmission rack (43) for transmission.

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