Crushing equipment for phosphogypsum production

Abstract

The utility model provides crushing equipment for ardealite production, which comprises a bottom plate, a box body is arranged above the bottom plate, two crushing rollers which are symmetrical front and back are rotatably connected in the box body, and a first motor for driving the two crushing rollers to rotate relatively is arranged on the box body; a filter plate located below the crushing rollers is arranged in the box body, two openings in bilateral symmetry are formed in the filter plate, two discharging pipes corresponding to the two openings respectively penetrate through the bottom of the box body, and a collecting shell communicated with the bottom ends of the two discharging pipes is arranged below the box body. The phosphogypsum particle screening device can effectively prevent crushed phosphogypsum particles which are large in particle size and are not qualified after being crushed from being blocked on the filter plate, the screening efficiency of the filter plate on the qualified phosphogypsum particles after being crushed is not affected, workers do not need to manually collect the large phosphogypsum particles on the filter plate, the labor burden of the workers is relieved, and the screening efficiency of the phosphogypsum particles after being crushed is improved. And the phosphogypsum crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to crushing equipment for phosphogypsum production. Background Art

[0002] There are two main types of phosphogypsum, gray-black and gray-white, with a particle diameter of 5 to 50 μm and a crystal water content of 20% to 25%. Phosphogypsum is a solid waste generated in the wet phosphoric acid process, and its main component is calcium sulfate dihydrate. At present, when recycling phosphogypsum, crushing equipment is needed to crush blocky and large-granular phosphogypsum, so as to facilitate the subsequent corresponding processing of the phosphogypsum. When the phosphogypsum crushing equipment is in use, a filtering device, such as a filter plate, is provided inside the crushing equipment to filter out the phosphogypsum that has not been completely crushed or has a larger particle size after crushing, so that the subsequent staff can collect these larger phosphogypsum and then carry out secondary crushing. However, the larger phosphogypsum filtered out by the filter plate in the crushing equipment is located on the filter plate and cannot fall off, so it will reduce the screening efficiency of the filter plate for the qualified phosphogypsum after crushing, and it is also necessary to manually collect the larger phosphogypsum on the filter plate and then put it into the crushing equipment for secondary crushing, which increases the labor burden of the staff and reduces the crushing efficiency of the phosphogypsum. Utility Model Content

[0003] The utility model discloses a crushing device for phosphogypsum production, which solves the problem that the crushed phosphogypsum cannot fall off the filter plate, which will clog the filter plate and reduce the screening efficiency of the filter plate. Subsequently, it is necessary to manually collect the larger phosphogypsum on the filter plate and then put it into the crushing device, which reduces the crushing efficiency of the phosphogypsum.

[0004] In order to solve the above technical problems, the utility model specifically adopts the following technical solutions:

[0005] A crushing device for phosphogypsum production comprises a bottom plate, a box body is provided above the bottom plate, two front-to-back symmetrical crushing rollers are rotatably connected in the box body, and a No. 1 motor for driving the two crushing rollers to rotate relative to each other is provided on the box body; a filter plate is provided below the crushing rollers in the box body, and two left-right symmetrical openings are provided on the filter plate, and two discharge pipes corresponding to the two openings are penetrated through the bottom of the box body, and a collecting shell connected to the bottom ends of the two discharge pipes is provided below the box body, a screw conveyor with a discharge end corresponding to a feed port at the top end of the box body is fixed on the bottom plate, and a discharge pipe inserted into the feed end of the screw conveyor is connected on one side of the collecting shell; a screw rod is provided above the filter plate, and a movable plate whose bottom contacts the top of the filter plate is threadedly connected to the screw rod, and a No. 2 motor for driving the screw rod to rotate is provided on the box body.

[0006] Compared with the prior art, the utility model has the following beneficial effects:

[0007] After the phosphogypsum is put into the box, the No. 1 motor is started to drive the two crushing rollers to rotate relative to each other to crush the phosphogypsum. The crushed phosphogypsum particles fall downward onto the filter plate. At the same time, the No. 2 motor is started to drive the screw to rotate, so that the moving plate moves toward the two openings repeatedly, pushing the phosphogypsum particles on the filter plate to move; the qualified phosphogypsum particles pass through the filter holes on the filter plate and fall downward, while the phosphogypsum particles with larger particle sizes after crushing move toward the openings, can enter the discharge pipe through the opening, and then fall into the collection shell, and then enter the spiral conveyor through the discharge pipe. In the conveyor, the screw conveyor transports the phosphogypsum with larger particle sizes, and then discharges the phosphogypsum with larger particle sizes into the box through the feed port at the top of the box through the discharge end, and performs secondary crushing on the phosphogypsum with larger particle sizes. The utility model can effectively prevent the phosphogypsum particles with larger particle sizes that have not been crushed to be qualified after crushing from being blocked on the filter plate, avoid affecting the screening efficiency of the filter plate for the phosphogypsum particles that have been crushed to be qualified, and there is no need for the staff to manually collect the larger phosphogypsum particles on the filter plate, thereby reducing the labor burden of the workers and improving the crushing efficiency of the phosphogypsum. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model in a front view;

[0009] Figure 2 It is a schematic structural diagram of the cross-section of the box body of the utility model;

[0010] Figure 3 for Figure 2 A is an enlarged structural diagram of FIG.

[0011] In the figure: 1. bottom plate; 2. box body; 21. crushing roller; 22. No. 1 motor; 23. rotating rod; 24. gear; 25. door panel; 26. outrigger; 3. filter plate; 31. opening; 32. No. 3 motor; 33. short rod; 4. discharge pipe; 41. No. 1 automatic telescopic rod; 5. screw rod; 51. No. 2 motor; 52. moving plate; 53. inclined plate; 54. electric telescopic rod; 55. lifting plate; 56. plug rod; 57. battery; 58. fixed frame; 6. lifting block; 61. No. 2 automatic telescopic rod; 62. fixed block; 7. guide plate; 71. vibrator; 8. collecting shell; 81. discharge pipe; 9. screw conveyor. DETAILED DESCRIPTION

[0012] The specific contents of the utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0013] like Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a crushing device for phosphogypsum production, including a bottom plate 1, a box body 2 is provided above the bottom plate 1, two front-to-back symmetrical crushing rollers 21 are rotatably connected in the box body 2, and a No. 1 motor 22 for driving the two crushing rollers 21 to rotate relative to each other is provided on the box body 2; a filter plate 3 is provided below the crushing roller 21 in the box body 2, and two left-right symmetrical openings 31 are provided on the filter plate 3, and two discharge pipes 4 corresponding to the two openings 31 are penetrated through the bottom of the box body 2, and a collecting shell 8 connected to the bottom ends of the two discharge pipes 4 is provided below the box body 2, a screw conveyor 9 whose discharge end corresponds to the feed port at the top of the box body 2 is fixed on the bottom plate 1, and a discharge pipe 81 inserted into the feed end of the screw conveyor 9 is connected on one side of the collecting shell 8; a screw rod 5 is provided above the filter plate 3, and a moving plate 52 whose bottom contacts the top of the filter plate 3 is threadedly connected to the screw rod 5, and a No. 2 motor 51 for driving the screw rod 5 to rotate is provided on the box body 2.

[0014] like Figure 1 and Figure 2 As shown, a rotating rod 23 penetrating the housing 2 and rotatably connected to the housing 2 is fixed to one end of the crushing roller 21 near the No. 1 motor 22, and a fixedly connected gear 24 is sleeved on the rotating rod 23, and the teeth of the two gears 24 are meshed; a bearing plate connected to the housing 2 is fixed to the main body of the No. 1 motor 22, and the rotating shaft of the No. 1 motor 22 is fixed to a rotating rod 23. After starting the No. 1 motor 22, the rotating shaft of the No. 1 motor 22 drives one crushing roller 21 to rotate through a rotating rod 23, and after one gear 24 drives another gear 24 to rotate, the other rotating rod 23 can drive another crushing roller 21 to rotate, and after the two crushing rollers 21 rotate relative to each other, the crushing of the phosphogypsum is completed.

[0015] like Figure 2 and Figure 3As shown, a slanted plate 53 is fixed on one side of the movable plate 52, which is arranged obliquely and is located below the screw rod 5. An electric telescopic rod 54 is fixed to the bottom of the slanted plate 53. A lifting plate 55 is fixed to the telescopic end of the electric telescopic rod 54. A group of plug rods 56 that can be inserted into the filter holes on the filter plate 3 are fixed to the bottom of the lifting plate 55. A battery 57 is fixed on the movable plate 52. After the phosphogypsum is crushed and there is blockage in the filter holes on the filter plate 3, the second motor 51 can be started to drive the screw rod 5 to rotate, so that the movable plate 52 drives the inclined plate 53 to move, and after a group of plug rods 56 correspond to a row of filter holes on the filter plate 3, the electric telescopic rod 54 is started to drive a group of plug rods 56 to move downward through the lifting plate 55 to dredge the filter holes on the filter plate 3; then the electric telescopic rod 54 is started to make the lifting plate 55 drive the plug rods 56 to move upward and recover, and then the second motor 51 is continued to be driven to make a group of plug rods 56 located above another row of filter holes on the filter plate 3, and then the above operation is repeated to complete the dredging of the filter holes, and the screw rod 5 drives the moving plate 52 to move, so that a group of plug rods 56 can be moved to the top of all the filter holes in turn to complete the dredging of all the filter holes; the battery 57 can supply power to the electric telescopic rod 54, and the setting of the inclined plate 53 can prevent the phosphogypsum from accumulating on the inclined plate 53.

[0016] like Figure 2 As shown, a guide plate 7 is fixed in the box 2 and is located between the two discharge pipes 4 and is arranged obliquely. An opening is provided on one side of the box 2 for the lower side of the guide plate 7 to pass through. A vibrator 71 whose vibrating end is connected to the bottom of the guide plate 7 is fixed at the bottom of the box 2. When the qualified phosphogypsum after crushing passes through the filter holes on the filter plate 3 and falls downward, it falls on the guide plate 7. The vibrator 71 can be started to vibrate the guide plate 7 so that the phosphogypsum particles on the guide plate 7 can slide toward the opening on the box 2 better, so that the phosphogypsum particles are discharged out of the box 2. The opening is provided on the back side of the box 2 (with a diameter of 100 mm). Figure 1 The opening is not shown in the figure).

[0017] like Figure 1 ,and Figure 2As shown, the discharge pipe 4 includes a No. 1 fixed section, a folding section and a No. 2 fixed section, the folding section is fixed between the No. 1 fixed section and the No. 2 fixed section, the top of the No. 1 fixed section contacts the bottom of the filter plate 3, the bottom of the No. 2 fixed section passes through the bottom of the box body 2 and is connected to the collecting shell 8; the collecting shell 8 is arranged at an angle, and the discharge pipe 81 is connected to the lower side of the collecting shell 8, and two No. 1 automatic telescopic rods 41 are fixed to the bottom of the box body 2, and the telescopic ends of the two No. 1 automatic telescopic rods 41 are respectively connected to the two No. 1 fixed sections through connecting blocks; short rods 33 rotatably connected to the inner wall of the box body 2 are respectively fixed on both sides of the filter plate 3, and a No. 3 motor is fixed on the box body 2 through a bearing block. 32, the rotating shaft of the No. 3 motor 32 passes through the box body 2 and is fixed to the end of a short rod 33; a lifting block 6 is slidably connected to one side of the box body 2 and is rotatably connected to the end of the screw rod 5 away from the No. 2 motor 51, and vertically arranged notches are opened on both sides of the box body 2. A fixed block 62 passing through the notch is fixed on the lifting block 6, and the end of the screw rod 5 close to the No. 2 motor 51 passes through the notch on the box body 2 away from the lifting block 6; a fixed frame 58 is slidably connected to the box body 2, and the No. 2 motor 51 is fixed on the inner side of the fixed frame 58, and No. 2 automatic telescopic rods 61 are fixed on both sides of the box body 2, and the telescopic ends of the two No. 2 automatic telescopic rods 61 are respectively fixed to the fixed block 62 and the fixed frame 58. After the phosphogypsum is crushed, phosphogypsum particles of various shapes will be produced. After the smaller parts of some phosphogypsum particles enter the filter holes on the filter plate 3, the larger parts will be stuck on the filter holes. It is impossible to make the phosphogypsum particles pass through the filter holes by simply squeezing from top to bottom, and the filter plate 3 may even be damaged. Therefore, the No. 1 automatic telescopic rod 41 can be started to drive the No. 1 fixed section to move downward, compress the folding section, and make the No. 1 fixed section away from the filter plate 3, and then start the two No. 2 automatic telescopic rods 61 to make the fixed block 62 drive the lifting block 6 to move upward. The fixed frame 58 drives the No. 2 motor 51 to move upward, so that the screw rod 5 moves upward, and the movable plate 52 moves upward and away from the filter plate 3; then the No. 3 motor 32 is started, and the filter plate 3 is driven to flip through the short rod 33, so that the top surface and the bottom surface of the filter plate 3 are exchanged, so that the phosphogypsum particles blocked in the filter hole can fall off, and the filter hole is unblocked. For the phosphogypsum particles blocked in the filter hole that cannot fall off, the plug rod 56 can be used to dredge it; when the filter hole is unblocked, the No. 1 fixed section and the screw rod 5 can be restored without restoring the filter plate 3.

[0018] like Figure 1 As shown, a leg 26 is fixed between the bottom plate 1 and the box body 2, and a door panel 25 is hinged on one side of the box body 2. The leg 26 can support the box body 2, and the staff can open the door panel 25 to inspect and maintain the inside of the box body 2.

[0019] When in use, after the phosphogypsum is put into the box body 2 through the feed port at the top of the box body 2, the No. 1 motor 22 is started to drive the two crushing rollers 21 to rotate relative to each other, so as to crush the phosphogypsum, and the crushed phosphogypsum particles fall downward onto the filter plate 3; then the No. 2 motor 51 is started, and the rotating shaft of the No. 2 motor 51 is fixed to the screw rod 5 at one end of the box body 2. The No. 2 motor 51 adopts a servo motor. When the No. 2 motor 51 drives the screw rod 5 to rotate, the moving plate 52 can move left or right (in Figure 1 The phosphogypsum particles with qualified particle sizes are pushed by the movable plate 52, and then fall downward through the filter holes on the filter plate 3. The phosphogypsum particles with larger particle sizes move toward the opening 31, enter the discharge pipe 4 through the opening 31, and then enter the collecting shell 8, and are discharged into the screw conveyor 9 through the discharge pipe 81. After the screw conveyor 9 transports the phosphogypsum particles with larger particle sizes, the larger phosphogypsum particles are discharged through the discharge end toward the feed port on the box body 2, so that the larger phosphogypsum particles enter the box body 2 for secondary crushing.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A crushing device for producing phosphogypsum, comprising a bottom plate (1), characterized in that: A box body (2) is provided above the bottom plate (1), two front-to-back symmetrical crushing rollers (21) are rotatably connected in the box body (2), and a first motor (22) is provided on the box body (2) for driving the two crushing rollers (21) to rotate relative to each other; a filter plate (3) is provided in the box body (2) below the crushing rollers (21), and two left-right symmetrical openings (31) are provided on the filter plate (3); two discharge pipes (4) corresponding to the two openings (31) are respectively passed through the bottom of the box body (2), and a filter plate (3) is provided below the box body (2) to prevent the two openings (31) from rotating. A collecting shell (8) is provided which is connected to the bottom ends of the two discharge pipes (4); a screw conveyor (9) whose discharge end corresponds to the feed port at the top end of the box body (2) is fixed on the bottom plate (1); a discharge pipe (81) inserted into the feed end of the screw conveyor (9) is connected to one side of the collecting shell (8); a screw rod (5) is provided above the filter plate (3); a moving plate (52) whose bottom contacts the top of the filter plate (3) is threadedly connected to the screw rod (5); and a second motor (51) for driving the screw rod (5) to rotate is provided on the box body (2).

2. A crushing device for phosphogypsum production according to claim 1, characterized in that: A rotating rod (23) penetrating the housing (2) and rotatably connected to the housing (2) is fixed to one end of the crushing roller (21) close to the first motor (22); a fixedly connected gear (24) is sleeved on the rotating rod (23); the teeth of the two gears (24) are meshed with each other; a bearing plate connected to the housing (2) is fixed to the main body of the first motor (22); and the rotating shaft of the first motor (22) is fixed to a rotating rod (23).

3. A crushing device for phosphogypsum production according to claim 1, characterized in that: A sloping plate (53) which is arranged obliquely and is located below the screw rod (5) is fixed on one side of the movable plate (52); an electric telescopic rod (54) is fixed on the bottom of the sloping plate (53); a lifting plate (55) is fixed on the telescopic end of the electric telescopic rod (54); a group of insertion rods (56) which can be inserted into the filter holes on the filter plate (3) are fixed on the bottom of the lifting plate (55); and a storage battery (57) is fixed on the movable plate (52).

4. A crushing device for phosphogypsum production according to claim 1, characterized in that: A guide plate (7) is fixed inside the box body (2) and is located between the two discharge pipes (4) and is arranged in an inclined manner. An opening is provided on one side of the box body (2) for the lower surface of the guide plate (7) to pass through. A vibrator (71) is fixed at the bottom of the box body (2) and has a vibration end connected to the bottom of the guide plate (7).

5. A crushing device for phosphogypsum production according to claim 1, characterized in that: The discharge pipe (4) comprises a No. 1 fixed section, a folding section and a No. 2 fixed section, the folding section being fixed between the No. 1 fixed section and the No. 2 fixed section, the top of the No. 1 fixed section being in contact with the bottom of the filter plate (3), the bottom of the No. 2 fixed section penetrating the bottom of the box body (2) and being connected to the collecting shell (8); the collecting shell (8) being arranged in an inclined manner, the discharge pipe (81) being connected to the lower side of the collecting shell (8), two No. 1 automatic telescopic rods (41) being fixed to the bottom of the box body (2), the telescopic ends of the two No. 1 automatic telescopic rods (41) being respectively connected to the two No. 1 fixed sections via connecting blocks; short rods (33) being rotatably connected to the inner wall of the box body (2) are respectively fixed to the two sides of the filter plate (3), a No. 3 motor (32) being fixed to the box body (2) via a bearing block, the No. 3 motor (3 The rotating shaft of the screw rod (5) passes through the box body (2) and is fixed to the end of a short rod (33); a lifting block (6) rotatably connected to one side of the box body (2) and connected to the end of the screw rod (5) away from the second motor (51); both sides of the box body (2) are provided with vertically arranged notches; a fixing block (62) passing through the notch is fixed on the lifting block (6); the end of the screw rod (5) close to the second motor (51) passes through the notch on the box body (2) away from the lifting block (6); a fixing frame (58) is slidably connected to the box body (2); the second motor (51) is fixed to the inner side of the fixing frame (58); both sides of the box body (2) are fixed with second automatic telescopic rods (61); the telescopic ends of the two second automatic telescopic rods (61) are respectively fixed to the fixing block (62) and the fixing frame (58).

6. A crushing device for phosphogypsum production according to claim 1, characterized in that: A support leg (26) is fixed between the bottom plate (1) and the box body (2), and a door panel (25) is hingedly connected to one side of the box body (2).

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