A cement storage unloading device

Abstract

The present invention belongs to the technical field of conveying equipment, in particular to a cement silo unloading device. Aiming at the problems that the existing bottom cement is prone to agglomeration, clogging occurs during the discharge process, and the agglomerated cement in the cement affects the later construction, the following scheme is proposed, which includes a cement silo, a discharge pipe for discharging is fixed at the bottom of the cement silo, a feed box is arranged below the cement silo, the bottom end of the discharge pipe extends into the feed box, the top inner wall of the cement silo is rotatably connected with a stirring shaft, and a plurality of stirring rods are fixed to the outer wall of the stirring shaft. In the present invention, the cement of the bottom layer can be broken up before being discharged to avoid cement clogging in the discharge pipe, and in the later stage, in the process of screening the discharged cement, not only the agglomerated cement can be crushed, but also the cement of the bottom layer in the cement silo can be crushed. In addition, in the process of discharging cement, cement in the dust can be recovered and dry gas can be injected into the cement silo at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a cement silo unloading device. Background Art

[0002] Cement silos, also known as cement warehouses or cement storage facilities, are buildings or structures specifically used to store cement in bulk or in bags. These facilities are crucial in the construction industry, infrastructure construction, concrete production and other fields as they ensure a steady supply of cement to meet various construction needs. Most cement silos have a discharge port at the bottom of the silo, from which cement is pumped out.

[0003] There are still some deficiencies in the cement storage in the existing technology during the cement discharge process:

[0004] 1. Since a large amount of cement is stored in the cement warehouse, the cement in the bottom layer is squeezed by the cement in the upper layer, which makes the cement in the bottom layer easy to agglomerate, resulting in blockage in the later discharge process;

[0005] 2. When discharging cement, there are cement lumps of different sizes in the cement, and these cement lumps affect the subsequent construction.

[0006] In view of the above problems, the present invention document proposes a cement silo unloading device. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the existing bottom cement being prone to agglomeration, blockage during discharge, and agglomerated cement in cement affecting later construction, and to propose a cement silo unloading device.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A cement silo unloading device comprises a cement silo, a discharge pipe for discharging materials is fixed at the bottom of the cement silo, a feeding box is arranged below the cement silo, the bottom end of the discharge pipe extends into the feeding box, a stirring shaft is rotatably connected to the inner wall of the top of the cement silo, a plurality of stirring rods are fixed to the outer wall of the stirring shaft, and the stirring shaft and the stirring rods cooperate to break up the cement agglomerated in the cement silo;

[0010] It also includes a screening plate longitudinally slidably arranged in the feeding box, used for screening the discharged cement, a rotating shaft located below the screening plate is rotatably connected in the feeding box, a rotating shaft is rotatably connected in the feeding box, a crushing plate is fixedly sleeved on the outer wall of the rotating shaft, and the crushing plate is used for crushing the cement agglomerated after screening;

[0011] It also includes a plurality of insertion rods, and the plurality of insertion rods are all arranged in the discharge pipe, and are used to crush the cement agglomerated at the bottom layer of the cement silo;

[0012] The screening structure is arranged in the feeding box and is used to drive the screening plate to vibrate to complete the cement screening and discharge the screened cement to one side;

[0013] The crushing structure is arranged in the feeding box and is used to drive the crushing plate to rotate clockwise to crush the cement agglomerated after screening, and the screening structure can provide power for the crushing structure;

[0014] The crushing structure is arranged in the discharge pipe and is used to drive the insertion rod to move up and down, so as to crush the cement agglomerated at the bottom of the cement silo, and the crushing structure can be driven to operate when the grinding structure is in operation.

[0015] In a possible design, the screening structure includes a plurality of first cams fixed on the outer wall of the rotating shaft, and the first cams are used to drive the screen plate to move up, and a plurality of springs are fixed to the inner walls of the side of the feed box that are away from each other through a base plate, and the top ends of the plurality of springs are fixedly connected to the bottom of the screen plate, and the springs cooperate with the first cams to drive the screen plate to vibrate, and a guide plate located below the screen plate is rotatably connected in the feed box, and a plurality of pull ropes are fixed to the top of the side of the guide plate close to the discharge pipe, and the top ends of the plurality of pull ropes are fixedly connected to the bottom of the screen plate, and the cooperation between the screen plate and the pull ropes is used to drive the guide plate to rotate; the motor drives the rotating shaft to rotate, and the rotating shaft drives the screen plate to vibrate reciprocatingly up and down through the cooperation of the first cam and the spring, so as to screen cement, and the agglomerated cement remains on the screen plate, and when the screen plate vibrates, the guide plate is rotated by pulling the pull rope, and the guide plate discharges the screened cement to one side.

[0016] In a possible design, the crushing structure includes a fixed plate fixed in the feed box, a movable screen plate is slidably arranged at the bottom of the fixed plate, and the movable screen plate is located on the top of the screen plate, the movable screen plate is used to block the agglomerated cement, and the crushing plate and the movable screen plate cooperate to crush the agglomerated cement, both ends of the rotating shaft are rotated to extend to the two sides of the feed box, the outer wall of the rotating shaft is fixedly sleeved with two toggle plates, and the two toggle plates are located on the two sides of the feed box, rectangular grooves are arranged in the two toggle plates, a torsion spring is fixed on the side where the two toggle plates are close to each other, and one end of the torsion spring is fixedly connected to one side of the feed box, the torsion spring is sleeved on the outer wall of the rotating shaft, and both sides of the top of the feed box are slidably arranged. The movable plate is connected with a sliding plate, and a pin is fixed on the side of the two sliding plates away from each other, and the pin cooperates with the rectangular groove to drive the toggle plate to rotate clockwise. A linkage structure is provided on both sides of the feed box, and the rotating shaft drives the sliding plate to move through the linkage structure; the vibration of the screen plate discharges the agglomerated water to the left, and the movable screen plate blocks the agglomerated cement, and the rotating shaft drives the sliding plate to move to the right through the linkage structure, and the sliding plate drives the toggle plate and the rotating shaft to rotate through the cooperation of the pin and the rectangular groove, and the rotating shaft drives the crushing plate to rotate 90° clockwise to crush the agglomerated cement blocked by the movable screen plate, and when the residual gear is out of mesh with the first rack, the rotating shaft rotates in the opposite direction under the action of the torsion spring to reset.

[0017] In a possible design, the linkage structure includes a rotating rod and a driven gear rotating on one side of the feed box, one end of the rotating shaft rotates and extends to one side of the feed box and is connected to the rotating rod through a synchronous wheel and a synchronous belt, a first gear meshing with the driven gear is fixed to the outer wall of the rotating rod, a residual gear is fixed to one side of the driven gear, and the driven gear and the residual gear are coaxial, a first rack is fixed to the bottom of the sliding plate, and the first rack is intermittently meshed with the residual gear, and the first gear is used to drive the sliding plate to move through the cooperation of the driven gear, the residual gear and the first rack; the rotating shaft drives the rotating rod and the first gear to rotate through the synchronous wheel and the synchronous belt, the first gear drives the residual gear to rotate through the driven gear, and the cooperation of the residual gear and the first rack drives the sliding plate to move to the right, thereby completing the operation of the crushing plate to crush the agglomerated cement.

[0018] In a possible design, the crushing structure includes a second lifting ring slidably arranged in the discharge pipe, a plurality of second magnets are fixedly embedded in the outer wall of the second lifting ring, a first lifting ring is slidably sleeved on the outer wall of the discharge pipe, a plurality of first magnets are embedded in the inner wall of the first lifting ring, and a magnetic attraction force is generated between the first magnet and the second magnet, the first lifting ring drives the second lifting ring to rise and fall synchronously through the magnetic attraction between the first magnet and the second magnet, the plurality of insertion rods are fixed on the top of the second lifting ring, and fixing rods are welded on both sides of the first lifting ring, and the two fixing rods are The outer walls are all rotatably sleeved with connecting rods, and the bottom ends of the two connecting rods are rotatably set on the top of the corresponding sliding plates. When the residual gear drives the sliding plate to move, it can not only make the crushing plate crush the screened cement lumps but also drive the first lifting ring and the second lifting ring to move upward; when the sliding plate moves to the right, the sliding plate drives the first lifting ring to move upward through the cooperation of the connecting rod and the fixed rod, and the first lifting ring drives the second lifting ring and the insertion rod to move upward through the magnetic attraction between the first magnet and the second magnet. The movement of the insertion rod can crush the cement lumps on the bottom layer, which is convenient for the screw conveying shaft to rotate and quickly discharge the cement downward.

[0019] In a possible design, a screw conveying shaft extending into the discharge pipe is fixed to the bottom end of the stirring shaft, and the stirring shaft drives the screw conveying shaft to rotate so as to quickly discharge the cement downward.

[0020] In one possible design, a sealing plate that contacts the bottom end of the discharge pipe is slidably connected inside the feed box, and the sealing plate is used to close the discharge pipe. A screw rod is rotatably connected to one side of the sealing plate, and one end of the screw rod is threadedly extended to one side of the feed box. The screw rod drives the sealing plate to move to release the closure of the discharge pipe.

[0021] In a possible design, a plurality of sliding rods are fixed on the top of the movable screen plate, and the top ends of the plurality of sliding rods all slide and extend into the fixed plate. The sliding rods are used to increase the stability of the lifting and lowering of the movable screen plate. A closing plate is fixed on the side of the feed box away from the discharge pipe, and the closing plate is used to prevent excessive dust from overflowing.

[0022] In a possible design, an exhaust fan is provided in the closed plate, a shielding cover is fixed on the side of the closed plate away from the discharge pipe, the exhaust fan is used to discharge dust into the shielding cover, a gauze layer for filtering dust is provided in the shielding cover, a cooling dryer is fixed on the top of the feed box, the air inlet end of the cooling dryer is connected to the shielding cover, a plurality of air guide rings are fixed in the cement storage, the bottoms of the plurality of air guide rings are provided with air outlets, an exhaust pipe is provided at the air outlet end of the cooling dryer, and one end of the exhaust pipe is divided into a plurality of It is connected with multiple air guide rings to inject dry gas into the cement silo; the exhaust fan runs to discharge the flying dust into the shielding cover, the gauze layer can filter the cement particles in the dust, and then the filtered air is transported to the cooling dryer through the air inlet pipe. The cooling dryer cools and dries the air, and then the dry air is discharged into the cement silo through the air guide ring, which is not only used to keep the cement silo dry, but also can cooperate with the stirring shaft and stirring rod to make the cement in the cement silo in a loose state, so as to prevent the bottom cement from agglomerating due to pressure.

[0023] In a possible design, a circular shaft is rotatably connected inside the shielding cover, and a second gear is provided on the outer wall fixed sleeve of the circular shaft. A second rack meshing with the second gear is slidably penetrated inside the shielding cover, and the bottom end of the second rack touches the top of the guide plate. When the guide plate rotates, the cooperation of the second rack and the second gear drives the circular shaft to reciprocate, and a plurality of second cams are provided on the outer wall fixed sleeve of the circular shaft, and the second cams are used to hit the gauze layer to shake off the cement on it, and a return port is provided on one side of the closing plate to reintroduce the shaken cement into the feed box; when the guide plate reciprocates under the action of the screening plate, the guide plate continuously pushes the second rack to move up and down, and the second rack drives the circular shaft to reciprocate through the second gear, and the circular shaft hits the gauze layer through the second cam to shake off the cement dust filtered on the gauze layer, and the shaken cement dust re-enters the feed box through the return port when it accumulates to a certain extent.

[0024] Beneficial effects:

[0025] In the present invention, a movable screen plate is slidably arranged at the bottom of the fixed plate, a crushing plate is fixedly arranged on the outer wall of the rotating shaft, and two toggle plates are fixedly arranged on the outer wall of the rotating shaft, and rectangular grooves are arranged in the two toggle plates, and pins are fixedly arranged on the sides of the two sliding plates which are away from each other, and the pins are slidably matched with the rectangular grooves; when the rotating shaft drives the screen plate to vibrate, it also drives the sliding plate to move to the right through the linkage structure, and the sliding plate drives the toggle plate and the rotating shaft to rotate through the matching of the pins and the rectangular grooves, at which time the torsion spring is in a power storage state, and the rotating shaft drives the crushing plate to rotate 90° clockwise, so as to crush the agglomerated cement blocked by the movable screen plate, so as to avoid cement agglomeration affecting the construction in the later stage;

[0026] In the present invention, an exhaust fan is arranged in the closed plate, a shielding cover is fixed on one side of the closed plate away from the discharge pipe, a gauze layer is arranged in the shielding cover, a cooling dryer is fixed on the top of the feed box, and a plurality of air guide rings are fixed in the cement silo; the exhaust fan is operated to discharge the flying dust into the shielding cover, the gauze layer can filter the cement particles in the dust, and then the filtered air is transported to the cooling dryer through the air inlet pipe for cooling and drying, and then discharged into the cement silo through the air guide ring, which is not only used to keep the cement silo in a dry state, but also can cooperate with the stirring shaft and the stirring rod to make the cement in the cement silo in a loose state, so as to prevent the cement at the bottom from being pressed and agglomerated;

[0027] In the present invention, a plurality of second magnets are fixedly embedded on the outer wall of the second lifting ring, a first lifting ring is slidably sleeved on the outer wall of the discharge pipe, a plurality of first magnets are embedded on the inner wall of the first lifting ring, a plurality of insertion rods are fixed on the top of the second lifting ring, fixing rods are welded on both sides of the first lifting ring, connecting rods are rotatably sleeved on the outer walls of the two fixing rods, and the bottom ends of the two connecting rods are rotatably arranged on the top of the corresponding sliding plates; the sliding plate drives the first lifting ring to move upward through the cooperation of the connecting rod and the fixing rod, and the first lifting ring drives the second lifting ring and the insertion rod to move upward through the magnetic attraction between the first magnet and the second magnet, and the movement of the insertion rod can crush the cement agglomerated on the bottom layer, so as to facilitate the rotation of the screw conveying shaft to quickly discharge the cement downward;

[0028] In the present invention, a rotating rod and a driven gear are rotated on one side of the feed box, one end of the rotating shaft is connected to the rotating rod through a synchronous wheel and a synchronous belt, a first gear is fixed to the outer wall of the rotating rod, a residual gear is fixed to one side of the driven gear, and a first rack is fixed to the bottom of the sliding plate; the rotating shaft drives the rotating rod and the first gear to rotate through the synchronous wheel and the synchronous belt, the first gear drives the residual gear to rotate through the driven gear, and the cooperation of the residual gear and the first rack drives the sliding plate to move to the right, thereby completing the operation of crushing the agglomerated cement by the crushing plate and the crushing operation of the inserted rod.

[0029] In the present invention, the cement at the bottom layer can be broken up before being discharged, so as to avoid the cement being blocked in the discharge pipe. In the later stage, in the process of screening the discharged cement, not only the agglomerated cement can be crushed, but also the cement at the bottom layer in the cement silo can be crushed. In addition, in the process of discharging cement, the cement in the dust can be recovered and dry gas can be injected into the cement silo at the same time, which is not only used to keep the cement silo in a dry state, but also can cooperate with the stirring shaft and the stirring rod to make the cement in the cement silo in a loose state, so as to avoid the cement at the bottom layer from being pressed and agglomerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the three-dimensional structure of a cement silo unloading device provided in Example 1 of the present invention;

[0031] Figure 2 A schematic diagram of the main cross-sectional structure of a cement silo unloading device provided in Example 1 of the present invention;

[0032] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a discharge pipe of a cement silo unloading device provided in Example 1 of the present invention;

[0033] Figure 4 A schematic diagram of a three-dimensional explosion structure of a second lifting ring and a first lifting ring of a cement silo unloading device provided in Example 1 of the present invention;

[0034] Figure 5 A schematic diagram of the three-dimensional structure of the movable screen plate, the crushing plate, the sliding plate and the first lifting ring of a cement silo unloading device provided in Example 1 of the present invention;

[0035] Figure 6 A schematic diagram of a three-dimensional exploded structure of a screening plate and a guide plate of a cement silo unloading device provided in Example 1 of the present invention;

[0036] Figure 7 A schematic diagram of a three-dimensional explosion structure of a fixed plate, a movable screen plate and a crushing plate of a cement silo unloading device provided in Example 1 of the present invention;

[0037] Figure 8 A schematic diagram of a three-dimensional exploded structure of a sliding plate, a toggle plate and a residual gear of a cement silo unloading device provided in Example 1 of the present invention;

[0038] Fig. 9 This is a schematic diagram of the main cross-sectional structure of a cement silo unloading device provided in Example 2 of the present invention;

[0039] Fig.10 for Fig. 9 The enlarged structural diagram at A in the middle;

[0040] Fig.11 This is a schematic diagram of a three-dimensional sectional explosion structure of an exhaust fan, a second rack and a gauze layer of a cement silo unloading device provided in Example 2 of the present invention.

[0041] In the figure: 1, cement silo; 2, discharge pipe; 3, stirring shaft; 4, stirring rod; 5, feeding box; 6, blocking plate; 7, screw rod; 8, screw conveyor shaft; 9, screening plate; 10, spring; 11, guide plate; 12, pull rope; 13, rotating shaft; 14, first cam; 15, closing plate; 16, fixed plate; 17, movable screening plate; 18, sliding rod; 19, rotating shaft; 20, crushing plate; 21, rotating rod; 22, first gear; 23, residual gear; 24, sliding plate; 25, first rack; 26, Pin shaft; 27, toggle plate; 28, rectangular groove; 29, torsion spring; 30, connecting rod; 31, fixed rod; 32, first lifting ring; 33, first magnet; 34, second lifting ring; 35, second magnet; 36, insertion rod; 37, exhaust fan; 38, shielding cover; 39, gauze layer; 40, air inlet pipe; 41, cooling dryer; 42, exhaust pipe; 43, air guide ring; 44, round shaft; 45, second gear; 46, second cam; 47, second rack; 48, driven gear; 49, return port. DETAILED DESCRIPTION

[0042] 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.

[0043] Example 1

[0044] Reference Figure 1 and Figure 2 A detection device is used in the field of cement transportation. The device mainly includes a cement silo 1, and a discharge pipe 2 is fixed at the bottom of the cement silo 1 for discharging. A feed box 5 is provided below the cement silo 1, and the bottom end of the discharge pipe 2 extends into the feed box 5. A stirring shaft 3 is rotatably connected to the inner wall of the top of the cement silo 1, and a plurality of stirring rods 4 are fixed to the outer wall of the stirring shaft 3. The stirring shaft 3 cooperates with the stirring rod 4 to break up the cement agglomerated in the cement silo 1.

[0045] Reference Figure 2 , Figure 5 and Figure 7 In the feeding box 5, a longitudinally sliding screening plate 9 is provided for screening the discharged cement. The feeding box 5 is also rotatably connected with a rotating shaft 13 located below the screening plate 9 and a rotating shaft 19 rotating in the feeding box 5. A crushing plate 20 is fixedly sleeved on the outer wall of the rotating shaft 19 for crushing the agglomerated cement after screening.

[0046] Reference Figure 2 and Figure 3 In addition, there are a plurality of insertion rods 36, which are all arranged in the discharge pipe 2 and are used to crush the cement agglomerated at the bottom layer of the cement silo 1.

[0047] Reference Figure 2 , Figure 5 and Figure 6 , next is the screening structure, which is arranged in the feed box 5, and is used to drive the screen plate 9 to vibrate, complete the screening of cement, and discharge the screened cement to one side. Specifically, the screening structure includes a plurality of first cams 14 fixed on the outer wall of the rotating shaft 13, which are used to drive the screen plate 9 to move upward. The inner wall of the feed box 5 on one side away from each other is fixed with a plurality of springs 10 through a base plate, and the top of the spring 10 is fixedly connected to the bottom of the screen plate 9. The spring 10 cooperates with the first cam 14 to drive the screen plate 9 to vibrate. The feed box 5 is also rotatably connected with a guide plate 11 located below the screen plate 9, and a plurality of pull ropes 12 are fixed to the top of the side of the guide plate 11 close to the discharge pipe 2, and the top of the pull rope 12 is fixedly connected to the bottom of the screen plate 9. The cooperation between the screen plate 9 and the pull rope 12 is used to drive the guide plate 11 to rotate. When the motor drives the rotating shaft 13 to rotate, the rotating shaft 13 drives the screen plate 9 to vibrate up and down through the cooperation of the first cam 14 and the spring 10 to screen the cement. The agglomerated cement remains on the screening plate 9, and when the screening plate 9 vibrates, the guide plate 11 is pulled to rotate by the pull rope 12, and the guide plate 11 discharges the screened cement to one side.

[0048] Reference Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8Next is the crushing structure, which is arranged in the feed box 5 and is used to drive the crushing plate 20 to rotate clockwise to crush the cement that has agglomerated after screening. At the same time, the screening structure can provide power for the crushing structure. Specifically, the crushing structure includes a fixed plate 16 fixed in the feed box 5, and a movable screen plate 17 is slidably arranged at the bottom of the fixed plate 16. The movable screen plate 17 is located on the top of the screen plate 9 and is used to block the agglomerated cement. The crushing plate 20 cooperates with the movable screen plate 17 to crush the agglomerated cement. Both ends of the rotating shaft 19 rotate and extend to both sides of the feed box 5. Two toggle plates 27 are fixedly sleeved on the outer wall of the rotating shaft 19, and the two toggle plates 27 are located on both sides of the feed box 5. A rectangular groove 28 is arranged in the toggle plate 27, and a torsion spring 29 is fixed on the side of the toggle plate 27 that is close to each other. One end of the torsion spring 29 is fixedly connected to one side of the feed box 5 and sleeved on the outer wall of the rotating shaft 19. Both sides of the top of the feed box 5 are slidably connected with sliding plates 24, and the sides of the sliding plates 24 that are away from each other are fixed with pins 26. The pins 26 slide and cooperate with the rectangular grooves 28 to drive the toggle plate 27 to rotate clockwise. Both sides of the feed box 5 are provided with linkage structures, and the rotating shaft 13 drives the sliding plates 24 to move through the linkage structure. When the vibration of the screen plate 9 discharges the agglomerated cement to the left, the movable screen plate 17 blocks the agglomerated cement. At this time, the rotating shaft 13 drives the sliding plate 24 to move to the right through the linkage structure, and the sliding plate 24 drives the toggle plate 27 and the rotating shaft 19 to rotate through the cooperation of the pins 26 and the rectangular grooves 28. The rotating shaft 19 drives the crushing plate 20 to rotate 90° clockwise to crush the agglomerated cement blocked by the movable screen plate 17. When the residual gear 23 is out of mesh with the first rack 25, the rotating shaft 19 rotates in the opposite direction under the action of the torsion spring 29 to reset.

[0049] Reference Figure 5 and Figure 8 The linkage structure includes a rotating rod 21 and a driven gear 48 rotating on one side of the feed box 5. One end of the rotating shaft 13 rotates and extends to one side of the feed box 5, and is connected to the rotating rod 21 through a synchronous wheel and a synchronous belt. A first gear 22 meshing with the driven gear 48 is fixed to the outer wall of the rotating rod 21, and a residual gear 23 is fixed to one side of the driven gear 48, and the driven gear 48 is coaxial with the residual gear 23. A first rack 25 is fixed to the bottom of the sliding plate 24, and the first rack 25 is intermittently meshed with the residual gear 23. The first gear 22 is used to drive the sliding plate 24 to move through the cooperation of the driven gear 48, the residual gear 23 and the first rack 25. When the rotating shaft 13 rotates, it drives the rotating rod 21 and the first gear 22 to rotate through the synchronous wheel and the synchronous belt. The first gear 22 then drives the residual gear 23 to rotate through the driven gear 48, and the residual gear 23 cooperates with the first rack 25 to drive the sliding plate 24 to move to the right, thereby completing the operation of the crushing plate 20 to crush the agglomerated cement.

[0050] Reference Figure 2-Figure 5Next is the crushing structure, which is arranged in the discharge pipe 2 and is used to drive the insertion rod 36 to rise and fall, and crush the cement agglomerated at the bottom of the cement silo 1. At the same time, when the crushing structure is in operation, it can drive the crushing structure to operate. Specifically, the crushing structure includes a second lifting ring 34 slidably arranged in the discharge pipe 2, and a plurality of second magnets 35 are fixedly embedded on the outer wall of the second lifting ring 34. The outer wall of the discharge pipe 2 is slidably sleeved with a first lifting ring 32, and the inner wall of the first lifting ring 32 is embedded with a plurality of first magnets 33, and a magnetic attraction is generated between the first magnet 33 and the second magnet 35. The first lifting ring 32 drives the second lifting ring 34 to rise and fall synchronously through the magnetic attraction between the first magnet 33 and the second magnet 35. Multiple insertion rods 36 are fixed on the top of the second lifting ring 34. Fixed rods 31 are welded on both sides of the first lifting ring 32, and the outer wall of the fixed rod 31 is rotatably sleeved with connecting rods 30, and the bottom ends of the connecting rods 30 are rotatably arranged on the tops of the corresponding sliding plates 24. When the residual gear 23 drives the sliding plate 24 to move, it can not only make the crushing plate 20 crush the cement agglomerates after screening, but also drive the first lifting ring 32 and the second lifting ring 34 to move upward. Specifically, when the sliding plate 24 moves to the right, it drives the first lifting ring 32 to move upward through the cooperation of the connecting rod 30 and the fixed rod 31. The first lifting ring 32 then drives the second lifting ring 34 and the insertion rod 36 to move upward through the magnetic attraction between the first magnet 33 and the second magnet 35. The movement of the insertion rod 36 can crush the cement agglomerates on the bottom layer, facilitate the rotation of the screw conveying shaft 8, and quickly discharge the cement downward.

[0051] Reference Figure 3 In addition, a screw conveying shaft 8 extending into the discharge pipe 2 is fixed to the bottom end of the stirring shaft 3. When the stirring shaft 3 rotates, it drives the screw conveying shaft 8 to rotate, and the cement can be quickly discharged downward.

[0052] Reference Figure 3 A blocking plate 6 that contacts the bottom end of the discharge pipe 2 is also slidably connected in the feed box 5, and the blocking plate 6 is used to block the discharge pipe 2. A screw rod 7 is rotatably connected to one side of the blocking plate 6, and one end of the screw rod 7 is threadedly extended to one side of the feed box 5. By rotating the screw rod 7, the blocking plate 6 can be driven to move to release the blockage of the discharge pipe 2.

[0053] Reference Figure 1 , Figure 2 and Figure 7 Finally, a plurality of slide bars 18 are fixed on the top of the movable screen plate 17, and the top ends of the slide bars 18 are all slidably extended into the fixed plate 16. The slide bars 18 are used to increase the stability of the lifting and lowering of the movable screen plate 17. A closing plate 15 is also fixed on the side of the feeding box 5 away from the discharge pipe 2, and the closing plate 15 is used to prevent excessive dust from spreading.

[0054] Example 2

[0055] refer to Fig. 9 and Fig.10 , improved on the basis of Example 1: it also includes a closing plate 15, in which an exhaust fan 37 is arranged. A shielding cover 38 is fixed on the side of the closing plate 15 away from the discharge pipe 2. When the exhaust fan 37 is in operation, the flying dust is discharged into the shielding cover 38. A gauze layer 39 is arranged in the shielding cover 38 for filtering cement particles in the dust. A cooling dryer 41 is fixed on the top of the feed box 5, and the air inlet end of the cooling dryer 41 is connected to the shielding cover 38, and the filtered air is received through the air inlet pipe 40. A plurality of air guide rings 43 are fixed in the cement silo 1, and an air outlet is arranged at the bottom of each air guide ring 43. An exhaust pipe 42 is provided at the air outlet end of the cooling dryer 41, and one end of the exhaust pipe 42 is divided into multiple parts, which are respectively connected to the plurality of air guide rings 43, and are used to inject dry gas into the cement silo 1.

[0056] refer to Figure 9-11 Furthermore, a circular shaft 44 is rotatably connected in the shielding cover 38, and a second gear 45 is fixedly sleeved on the outer wall of the circular shaft 44. A second rack 47 meshing with the second gear 45 is also slidably penetrated in the shielding cover 38, and the bottom end of the second rack 47 touches the top of the guide plate 11. When the guide plate 11 rotates, it drives the circular shaft 44 to reciprocate through the cooperation of the second rack 47 and the second gear 45. The outer wall of the circular shaft 44 is also fixedly sleeved with a plurality of second cams 46, which are used to hit the gauze layer 39 to shake off the cement on it. A return port 49 is also provided on one side of the closing plate 15, which is used to re-introduce the shaken cement into the feed box 5.

[0057] refer to Figure 9-11 During operation, the exhaust fan 37 runs to discharge the flying dust into the shielding cover 38, and the gauze layer 39 can filter the cement particles in the dust. Then, the filtered air is transported to the cooling dryer 41 through the air inlet pipe 40, and the cooling dryer 41 cools and dries the air. Then, the dry air is discharged into the cement silo 1 through the air guide ring 43, which is not only used to keep the cement silo 1 dry, but also can cooperate with the stirring shaft 3 and the stirring rod 4 to make the cement in the cement silo 1 in a loose state, so as to prevent the cement at the bottom from being pressed and agglomerated.

[0058] refer to Figure 9-11 At the same time, when the guide plate 11 reciprocates under the action of the screen plate 9, the guide plate 11 will continuously push the second rack 47 to move up and down. The second rack 47 drives the round shaft 44 to reciprocate through the second gear 45, and the round shaft 44 hits the gauze layer 39 through the second cam 46 to shake off the cement dust filtered on the gauze layer 39. When the cement dust is accumulated to a certain extent, it will re-enter the feed box 5 through the return port 49, thereby realizing the effective recovery and utilization of dust.

[0059] A method for using a cement silo unloading device comprises the following steps:

[0060] S1, the stirring shaft 3 and the stirring rod 4 are driven by the motor to rotate, which is used to break up the cement agglomerated in the cement silo 1. When the cement needs to be discharged, the screw 7 is rotated to drive the blocking plate 6 to move, and the sealing of the discharge pipe 2 is released, and the cement is discharged to the screening plate 9 through the discharge pipe 2; then the rotating shaft 13 is driven by the motor to rotate, and the rotating shaft 13 drives the screening plate 9 to vibrate up and down through the cooperation of the first cam 14 and the spring 10, which is used to screen the cement, and the agglomerated cement remains on the screening plate 9, and when the screening plate 9 vibrates, the guide plate 11 is pulled to rotate by the pull rope 12, and the guide plate 11 discharges the screened cement to one side;

[0061] S2. At the same time, the vibration of the sieve plate 9 discharges the agglomerated cement to the left, and the movable sieve plate 17 blocks the agglomerated cement. In addition, the rotating shaft 13 drives the rotating rod 21 and the first gear 22 to rotate through the synchronous wheel and the synchronous belt. The first gear 22 drives the residual gear 23 to rotate through the driven gear 48. The cooperation between the residual gear 23 and the first rack 25 drives the sliding plate 24 to move to the right. The sliding plate 24 drives the toggle plate 27 and the rotating shaft 19 to rotate through the cooperation between the pin shaft 26 and the rectangular groove 28. At this time, the torsion spring 29 is in a power storage state, and the rotating shaft 19 drives the crushing plate 20 to rotate 90° clockwise to crush the agglomerated cement blocked by the movable sieve plate 17. When the residual gear 23 is out of mesh with the first rack 25, the rotating shaft 19 rotates in the opposite direction under the action of the torsion spring 29 to reset;

[0062] S3. In addition, when the residual gear 23 drives the sliding plate 24 to move to the right, the sliding plate 24 drives the first lifting ring 32 to move upward through the cooperation of the connecting rod 30 and the fixed rod 31. The first lifting ring 32 drives the second lifting ring 34 and the insertion rod 36 to move upward through the magnetic attraction between the first magnet 33 and the second magnet 35. The movement of the insertion rod 36 can crush the cement agglomerated at the bottom layer, so that the screw conveying shaft 8 can rotate to quickly discharge the cement downward.

[0063] S4. Dust is likely to occur during the process of discharging and screening cement. The exhaust fan 37 is running to discharge the floating dust into the shielding cover 38. The gauze layer 39 can filter the cement particles in the dust. Then the filtered air is transported to the cooling dryer 41 through the air inlet pipe 40. The cooling dryer 41 cools and dries the air. Then the dry air is discharged into the cement silo 1 through the air guide ring 43. It is not only used to keep the cement silo 1 dry, but also can cooperate with the stirring shaft 3 and the stirring rod 4 to make the cement in the cement silo 1 in a loose state, so as to prevent the cement at the bottom from being pressed and agglomerated.

[0064] S5. In addition, when the guide plate 11 reciprocates under the action of the screen plate 9, the guide plate 11 continuously pushes the second rack 47 to move up and down, and the second rack 47 drives the circular shaft 44 to reciprocate through the second gear 45. The circular shaft 44 hits the gauze layer 39 through the second cam 46, which is used to shake off the cement dust filtered on the gauze layer 39, and the cement dust shaken off re-enters the feed box 5 through the return port 49 when it accumulates to a certain extent.

[0065] However, as is well known to those skilled in the art, the working principles and wiring methods of the cooling dryer 41 and the exhaust fan 37 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0066] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 cement silo unloading device, characterized in that: The invention comprises a cement silo (1), wherein a discharge pipe (2) for discharging materials is fixed at the bottom of the cement silo (1), a feed box (5) is provided below the cement silo (1), the bottom end of the discharge pipe (2) extends into the feed box (5), a stirring shaft (3) is rotatably connected to the inner wall of the top of the cement silo (1), a plurality of stirring rods (4) are fixed to the outer wall of the stirring shaft (3), and the stirring shaft (3) and the stirring rods (4) cooperate to break up cement agglomerated in the cement silo (1); It also includes a screening plate (9) longitudinally slidably arranged in the feed box (5) for screening the discharged cement, a rotating shaft (13) located below the screening plate (9) being rotatably connected in the feed box (5), a rotating shaft (19) being rotatably connected in the feed box (5), a crushing plate (20) being fixedly sleeved on the outer wall of the rotating shaft (19), and the crushing plate (20) being used to crush the cement agglomerated after screening; It also includes a plurality of insertion rods (36), and the plurality of insertion rods (36) are all arranged in the discharge pipe (2) and are used to crush cement agglomerated at the bottom layer of the cement silo (1); A screening structure is arranged in the feed box (5) and is used to drive the screening plate (9) to vibrate to complete cement screening and discharge the screened cement to one side; A crushing structure is arranged in the feed box (5) and is used to drive the crushing plate (20) to rotate clockwise to crush the cement agglomerated after screening, and the screening structure can provide power for the crushing structure; The crushing structure is arranged in the discharge pipe (2) and is used to drive the insertion rod (36) to move up and down, thereby crushing cement agglomerated at the bottom layer of the cement silo (1); and when the crushing structure is in operation, the crushing structure can be driven to operate.

2. A cement silo unloading device according to claim 1, characterized in that: The screening structure comprises a plurality of first cams (14) fixed on the outer wall of the rotating shaft (13), and the first cams (14) are used to drive the screening plate (9) to move upward. A plurality of springs (10) are fixed to the inner wall of the side of the feeding box (5) away from each other through a base plate, and the top ends of the plurality of springs (10) are fixedly connected to the bottom of the screening plate (9). The springs (10) cooperate with the first cams (14) to drive the screening plate (9) to vibrate. A guide plate (11) located below the screening plate (9) is rotatably connected inside the feeding box (5), and a plurality of pull ropes (12) are fixed to the top of the side of the guide plate (11) close to the discharge pipe (2), and the top ends of the plurality of pull ropes (12) are fixedly connected to the bottom of the screening plate (9). The screening plate (9) cooperates with the pull ropes (12) to drive the guide plate (11) to rotate.

3. A cement silo unloading device according to claim 2, characterized in that: The crushing structure comprises a fixed plate (16) fixed in the feed box (5), a movable screen plate (17) is slidably arranged at the bottom of the fixed plate (16), and the movable screen plate (17) is located on the top of the screen plate (9), the movable screen plate (17) is used to block the agglomerated cement, and the crushing plate (20) cooperates with the movable screen plate (17) to crush the agglomerated cement, both ends of the rotating shaft (19) are rotated to extend to both sides of the feed box (5), the outer wall of the rotating shaft (19) is fixedly sleeved with two toggle plates (27), and the two toggle plates (27) are located on both sides of the feed box (5), and the two toggle plates (27) are provided with rectangular grooves (2 8), a torsion spring (29) is fixed on the side where the two toggle plates (27) are close to each other, and one end of the torsion spring (29) is fixedly connected to one side of the feed box (5), and the torsion spring (29) is sleeved on the outer wall of the rotating shaft (19), and sliding plates (24) are slidably connected to both sides of the top of the feed box (5), and a pin shaft (26) is fixed on the side where the two sliding plates (24) are away from each other, and the pin shaft (26) and the rectangular groove (28) are slidably matched to drive the toggle plate (27) to rotate clockwise, and a linkage structure is provided on both sides of the feed box (5), and the rotating shaft (13) drives the sliding plate (24) to move through the linkage structure.

4. A cement silo unloading device according to claim 3, characterized in that: The linkage structure comprises a rotating rod (21) and a driven gear (48) rotating on one side of the feed box (5); one end of the rotating shaft (13) rotates and extends to one side of the feed box (5) and is connected to the rotating rod (21) through a synchronous wheel and a synchronous belt; a first gear (22) meshing with the driven gear (48) is fixed to the outer wall of the rotating rod (21); a residual gear (23) is fixed to one side of the driven gear (48); the driven gear (48) and the residual gear (23) are coaxial; a first rack (25) is fixed to the bottom of the sliding plate (24); the first rack (25) and the residual gear (23) are intermittently meshed; the first gear (22) is used to drive the sliding plate (24) to move through the cooperation of the driven gear (48), the residual gear (23) and the first rack (25).

5. A cement silo unloading device according to claim 4, characterized in that: The crushing structure comprises a second lifting ring (34) slidably arranged in the discharge pipe (2), a plurality of second magnets (35) being fixedly embedded in the outer wall of the second lifting ring (34), a first lifting ring (32) being slidably sleeved on the outer wall of the discharge pipe (2), a plurality of first magnets (33) being embedded in the inner wall of the first lifting ring (32), and a magnetic attraction force being generated between the first magnets (33) and the second magnets (35), and the first lifting ring (32) drives the second lifting ring (34) to move synchronously through the magnetic attraction force between the first magnets (33) and the second magnets (35). The plurality of insertion rods (36) are fixed on the top of the second lifting ring (34), and the first lifting ring (32) is welded with fixed rods (31) on both sides. The outer walls of the two fixed rods (31) are rotatably sleeved with connecting rods (30), and the bottom ends of the two connecting rods (30) are rotatably arranged on the tops of the corresponding sliding plates (24). When the residual gear (23) drives the sliding plate (24) to move, it can not only enable the crushing plate (20) to crush the screened cement lumps, but also drive the first lifting ring (32) and the second lifting ring (34) to move upward.

6. A cement silo unloading device according to claim 5, characterized in that: A screw conveying shaft (8) extending into the discharge pipe (2) is fixed to the bottom end of the stirring shaft (3); the stirring shaft (3) drives the screw conveying shaft (8) to rotate so as to quickly discharge cement downwards.

7. A cement silo unloading device according to claim 6, characterized in that: A blocking plate (6) is slidably connected inside the feed box (5) and contacts the bottom end of the discharge pipe (2). The blocking plate (6) is used to close the discharge pipe (2). One side of the blocking plate (6) is rotatably connected to a screw rod (7). One end of the screw rod (7) is threadedly extended to one side of the feed box (5). The screw rod (7) drives the blocking plate (6) to move to release the blockage of the discharge pipe (2).

8. A cement silo unloading device according to claim 7, characterized in that: A plurality of slide bars (18) are fixed on the top of the movable screen plate (17), and the top ends of the plurality of slide bars (18) are slidably extended into the fixed plate (16). The slide bars (18) are used to increase the stability of the lifting and lowering of the movable screen plate (17). A closing plate (15) is fixed on the side of the feed box (5) away from the discharge pipe (2), and the closing plate (15) is used to prevent excessive dust from escaping.

9. A cement silo unloading device according to claim 8, characterized in that: An exhaust fan (37) is provided in the closing plate (15). A shielding cover (38) is fixed on one side of the closing plate (15) away from the discharge pipe (2). The exhaust fan (37) is used to discharge dust into the shielding cover (38). A gauze layer (39) for filtering dust is provided in the shielding cover (38). A cooling dryer (41) is fixed on the top of the feed box (5). The air inlet end of the cooling dryer (41) is connected to the shielding cover (38). A plurality of air guide rings (43) are fixed in the cement silo (1). The bottoms of the plurality of air guide rings (43) are each provided with an air outlet. An exhaust pipe (42) is provided at the air outlet end of the cooling dryer (41). One end of the exhaust pipe (42) is divided into a plurality of parts respectively connected to the plurality of air guide rings (43) for injecting dry gas into the cement silo (1).

10. A cement silo unloading device according to claim 9, characterized in that: A circular shaft (44) is rotatably connected inside the shielding cover (38), and a second gear (45) is provided on the outer wall fixed sleeve of the circular shaft (44). A second rack (47) meshing with the second gear (45) is slidably penetrated inside the shielding cover (38), and the bottom end of the second rack (47) contacts the top of the guide plate (11). When the guide plate (11) rotates, the circular shaft (44) is driven to reciprocate through the cooperation of the second rack (47) and the second gear (45). A plurality of second cams (46) are provided on the outer wall fixed sleeve of the circular shaft (44), and the second cams (46) are used to hit the gauze layer (39) to shake off the cement on it. A return port (49) is provided on one side of the closing plate (15) for re-introducing the shaken cement into the feed box (5).

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