A raw material drying device and process for active lime production

Abstract

The present invention discloses a raw material drying device and process for active lime production, which relate to the technical field of limestone processing. The raw material drying device comprises a drying main body, one end of the top of the drying main body is connected to a feed pipe, the bottom of the inner wall of the drying main body is connected to a heat insulation bin, and the center of the bottom of the outer wall of the drying main body is connected to a hot air blower. The present invention arranges sieve plates on the inner wall of a rotating shaft frame, and as the rotating shaft frame rotates, the stone moves toward a support plate arranged between the sieve plates, thereby utilizing a plurality of leakage grooves provided on the sieve plates and the tops of the support plates to distinguish debris and powder from bulk limestone in the limestone raw material, further solving the problem that in the use of conventional raw material drying devices for active lime production, due to the mixing of powder fragments in the limestone raw material, the limestone powder is easily overheated when the limestone raw material is dried, thereby generating over-fired lime and affecting subsequent reaction processes.

Description

Technical Field

[0001] The invention relates to the technical field of limestone processing, and in particular to a raw material drying device and process for producing active lime. Background Art

[0002] The main component of limestone is calcium carbonate. Lime and limestone are raw materials used in large quantities in building materials and industry. Limestone can be directly processed into stone and burned into quicklime. Quicklime absorbs moisture or adds water to become slaked lime. The main component of slaked lime is calcium hydroxide. Slaked lime is mixed into lime slurry, lime paste, etc., which are used as coating materials and brick and tile adhesives. In the limestone processing process, the water screening process in the limestone process mainly involves filtration and purification. Its main function is to reduce impurities and sand on the surface of the limestone to ensure the purity of the limestone.

[0003] The existing technology has the following problems:

[0004] 1. During the use of existing raw material drying equipment for active lime production, due to the presence of fragments in the limestone raw material powder, the limestone powder is easily overheated during the drying process, thereby generating over-fired lime, which affects the subsequent reaction process;

[0005] 2. In the existing drying equipment for raw materials used in active lime production, limestone fragments pile up on each other during use, making it difficult for high-temperature hot air to circulate between the limestone fragments. This not only causes uneven heating of the limestone fragments, but also easily leads to problems such as overburning of the outer layer of the limestone fragments and underburning of the inner layer.

[0006] 3. During use, the existing raw material drying device for active lime production may cause the limestone powder to be unevenly stirred during drying, which may easily lead to overheating of the limestone powder and the production of over-fired lime. Summary of the Invention

[0007] The present invention provides a raw material drying device and process for producing active lime, so as to solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A raw material drying device for active lime production includes a drying body, a blocking block is provided at the bottom of one side of the drying body, a feed pipe is fixedly connected to the top of the drying body, a heat insulation bin is connected to the bottom of the inner wall of the drying body, a hot air blower is connected to the center of the bottom of the outer wall of the drying body, and an arc-shaped air duct is fixedly connected to the output end of the hot air blower, the arc-shaped air duct is connected to the heat insulation bin, and a ventilation filter is connected to one side of the inner wall of the arc-shaped air duct;

[0010] The top of the drying body is connected to a fixed frame, and a slide groove is opened on one side of the inner wall of the fixed frame, and the interior of the slide groove is rotatably connected to a rotating shaft frame, the bottom of the rotating shaft frame is rotatably connected to the top of the heat insulation bin, and a screening mechanism is provided on the inner wall of the rotating shaft frame;

[0011] The screening mechanism includes several exhaust boxes fixedly connected to the inner wall of the rotating shaft frame, and the outer wall of each exhaust box is fixedly connected to a sieve plate, and one end of the several sieve plates is fixedly connected to the inner wall of the rotating shaft frame, and the ends of the several sieve plates away from the rotating shaft frame are commonly fixedly connected to a limiting tube, and the outer wall of the limiting tube is fixedly connected to several support plates, each of the support plates is located between two adjacent sieve plates, the sieve plates and the support plates are both inclined, and a plurality of leakage grooves are opened on the top of each support plate, and a plurality of protrusions are fixedly connected to the top of each support plate, each of the protrusions is located on one side of a leakage groove, and a plurality of flip frames are rotatably connected to the top of each support plate, and each of the flip frames is overlapped on a protrusion.

[0012] A further improvement of the technical solution of the present invention is that: a plurality of electric telescopic rods are arranged on the outer circumference of the heat insulation bin, and the plurality of electric telescopic rods are connected to the bottom inner wall of the drying body, and the output end of each electric telescopic rod is fixedly connected to a connecting frame, one end of each of the connecting frames passes through the heat insulation bin and extends to the interior of the heat insulation bin, and the ends of the plurality of connecting frames are commonly fixedly connected to an insulation board, and the bottom end of the interior of the insulation board is rotatably connected to a support plate with a hollow structure, and the inner diameter end of the support plate is slidably connected to the outer wall of the limiting tube.

[0013] A further improvement of the technical solution of the present invention is that: a plurality of elastic support columns are fixedly connected to the top of the support plate, and a push plate is fixedly connected to the top of the elastic support column, and the push plate is located below the flip frame.

[0014] A further improvement of the technical solution of the present invention is that: the inner wall of the limiting tube is slidably connected to the screen tube, and the bottom of the screen tube is fixedly connected to several extension frames, the outer wall of the limiting tube is provided with several limiting grooves, and the inner wall of the limiting groove is slidably connected to the outer wall of the extension frame, and the bottom of the extension frame is fixedly connected to the top of the support plate.

[0015] A further improvement of the technical solution of the present invention is that a fixing ring is sleeved on the bottom of the limiting tube, and the outer wall of the fixing ring is rotatably connected to a plurality of fixing plates, one side of the fixing plate is rotatably connected to a flip comb, and a buffer pressure plate is installed on one side of the flip comb.

[0016] A further improvement of the technical solution of the present invention is that: a motor is fixedly connected to one side of the drying body, and a transmission gear is fixedly connected to the output end of the motor, and the top of the transmission gear is rotatably connected to the outer wall of the drying body.

[0017] A further improvement of the technical solution of the present invention is that: a linkage gear rod is engaged with one side of the transmission gear, and the upper and lower ends of the linkage gear rod are rotatably connected to the inner wall of the drying body, and one side of the outer wall of the linkage gear rod is engaged with the outer wall of the rotating shaft frame.

[0018] A further improvement of the technical solution of the present invention is that: a deflector is fixedly connected to one side of the outer wall of the hot air blower, and the output end of the deflector is fixedly connected to an air duct, one end of the air duct is fixedly connected to a rotary joint, and one end of the rotary joint is connected to a diverter, and several output ends on the top of the diverter are respectively fixedly connected to the bottom of the exhaust box.

[0019] A process for drying raw materials for active lime production, which uses the above-mentioned device for drying raw materials for active lime production, is as follows:

[0020] S1: Limestone raw materials are fed into the insulation bin through a feed pipe. During this process, a screening mechanism is used to separate limestone blocks and limestone powder. The screening mechanism is driven by a motor to rotate the rotating shaft frame, so that the limestone powder falls into the insulation bin along the sieve plate and the trough provided on the top of the support plate. The limestone blocks are then limited by a turning frame.

[0021] S2: A fixing ring is sleeved on the outside of the limiting tube, and several fixing plates are arranged on the outside of the fixing ring. The limestone powder is turned by using a turning comb and a buffer pressure plate provided on one side of the fixing plate to increase the heating area of ​​the limestone powder;

[0022] S3: Start the hot air blower to heat and dry the limestone blocks and limestone powder.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention provides a raw material drying device and process for active lime production. By arranging sieve plates inside a rotating shaft frame, as the rotating shaft frame rotates, the stone moves toward a support plate arranged between two adjacent sieve plates, thereby utilizing a plurality of slits provided on the tops of the sieve plates and the support plates to separate powder from large limestone fragments in the limestone raw material. This further solves the problem that during use, the limestone raw material drying device for active lime production is easily overheated during the drying process due to the presence of fragments in the limestone raw material powder, thereby generating over-fired lime and affecting subsequent reaction processes.

[0025] 2. The present invention provides a raw material drying device and process for active lime production. A support plate is provided at the bottom of a heat insulation plate, and a plurality of elastic support columns are provided on the top of the support plate. When the electric telescopic rod is started, a push plate provided on the top of the elastic support column is used to push the turning frame to rotate, so that the turning frame is separated from the protrusion, and the turning frame pushes the limestone fragments placed on its surface, so that gaps are formed between the limestone fragments to facilitate the circulation of high-temperature hot air. This further solves the problem that in the use of traditional raw material drying devices for active lime production, due to the accumulation of limestone fragments, high-temperature hot air is difficult to circulate between the limestone fragments, which not only causes uneven heating of the limestone fragments, but also easily causes the outer layer of the limestone fragments to be overburned and the inner layer to be underburned.

[0026] 3. The present invention provides a raw material drying device and process for active lime production. A fixed ring is sleeved on the bottom of a limiting tube, and a plurality of fixed plates are arranged on the outside of the fixed ring. When a motor drives a rotating shaft frame to rotate, the rotating shaft frame is used to drive the limiting tube to rotate, so that the fixed ring drives a flipping comb provided on one side of the fixed plate to rotate at the bottom of the insulating bin. The flipping comb is used to stir the limestone powder at the bottom of the insulating bin. A buffer pressure plate is provided on one side of the flipping comb, and the buffer pressure plate is used to intermittently press down the flipped limestone powder, so that the surface of the limestone powder becomes wavy, thereby increasing the heating area of ​​the limestone powder and accelerating the drying of the limestone powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the back side of the present invention;

[0029] Figure 3 This is a cross-sectional view of the bottom surface of the heat insulation bin of the present invention;

[0030] Figure 4 This is a schematic diagram of the internal structure of the drying body of the present invention;

[0031] Figure 5 It is a front cross-sectional view of the present invention;

[0032] Figure 6 A top cross-sectional view of the rotating shaft frame of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the heat insulation bin of the present invention;

[0034] Figure 8 This is a schematic diagram of the support plate structure of the present invention;

[0035] Figure 9 For the present invention Figure 5 A in the middle is an enlarged schematic diagram;

[0036] Figure 10 Schematic diagram of the installation structure of the rotary joint and the diverter in the present invention;

[0037] Figure 11 For the present invention Figure 5 The enlarged schematic diagram of point B in the middle;

[0038] Figure 12 For the present invention Figure 5 Enlarged schematic diagram at point C in the middle.

[0039] In the figure: 1. Drying body; 2. Feed pipe; 3. Insulation bin; 4. Hot air blower; 5. Arc air duct; 6. Ventilation filter; 7. Fixed frame; 8. Slide; 9. Rotating shaft frame; 10. Exhaust box; 11. Sieve plate; 12. Limiting pipe; 13. Support plate; 14. Leakage groove; 15. Protrusion; 16. Flipping frame; 17. Electric telescopic rod; 18. Connecting frame; 19. Insulation board; 20. Support plate; 21. Elastic support column; 22. Push plate; 22-1, Slot; 23. Sieve tube; 24. Extension frame; 25. Limiting groove; 26. Fixed ring; 27. Fixed plate; 28. Flipping comb; 29. ​​Buffer pressure plate; 30. Motor; 31. Transmission gear; 32. Linkage gear rod; 33. Drain; 34. Air duct; 35. Rotary joint; 36. Diverter. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0041] like Figures 1 to 12 As shown, a raw material drying device for active lime production described in an embodiment of the present invention includes a drying main body 1, a sealing block is provided at the bottom of one side of the drying main body 1, a feeding pipe 2 is fixedly connected to the top of the drying main body 1, a heat insulation bin 3 is fixedly connected to the bottom of the inner wall of the drying main body 1, a hot air blower 4 is fixedly connected to the center of the bottom of the outer wall of the drying main body 1, and an arc-shaped air duct 5 is fixedly connected to the output end of the hot air blower 4, the arc-shaped air duct 5 is connected to the heat insulation bin 3, and a ventilation filter 6 is fixedly connected to one side of the inner wall of the arc-shaped air duct 5, a fixed frame 7 is connected to the top of the drying main body 1, and a slide groove 8 is provided on one side of the fixed frame 7, and a rotating shaft frame 9 is rotatably connected to the inside of the slide groove 8, the bottom of the rotating shaft frame 9 is rotatably connected to the top of the heat insulation bin 3, and a screening mechanism is provided inside the rotating shaft frame 9.

[0042] During operation, the limestone raw material is fed into the heat-insulating bin 3 provided inside the drying main body 1 through the feed pipe 2 provided on the top of the drying main body 1. In this process, a fixed frame 7 is provided on the top of the drying main body 1, and a chute 8 is provided on one side of the inner wall of the fixed frame 7. The chute 8 is used to limit the rotating shaft frame 9, and the powder and large limestone fragments in the limestone raw material are distinguished by the screening mechanism inside the rotating shaft frame 9. The hot air blower 4 provided at the bottom center of the outer wall of the drying main body 1 is started, and the hot air blower 4 is sent into the heat-insulating bin 3 through the arc-shaped air duct 5 provided at the output end, so as to separate the limestone accumulated at the bottom of the heat-insulating bin 3. The limestone powder is heated by providing a ventilation filter 6 on one side of the inner wall of the arc-shaped air duct 5 to prevent the limestone powder from entering the arc-shaped air duct 5 and causing blockage at the output end of the hot air blower 4; when the limestone raw material is dried, the blocking block provided at the bottom of one side of the drying main body 1 is pulled to shovel the limestone raw material out of the insulation bin 3, thereby solving the problem of the traditional raw material drying device for active lime production in use, that is, due to the presence of fragments in the limestone raw material powder, the limestone powder is easily overheated when the limestone raw material is dried, thereby generating over-fired lime and affecting the subsequent reaction process.

[0043] In this embodiment, if Figure 4-9 As shown, the screening mechanism includes a plurality of exhaust boxes 10 fixedly connected to the inner wall of the rotating shaft frame 9, and the outer wall of each exhaust box 10 is fixedly connected to a sieve plate 11, and one end of the plurality of sieve plates 11 is fixedly connected to the inner wall of the rotating shaft frame 9, and the other end of the plurality of sieve plates 11 is commonly connected to a limiting tube 12, and the outer wall of the limiting tube 12 is fixedly connected to a plurality of support plates 13, each support plate 13 is located between two adjacent sieve plates 11, the sieve plates 11 and the support plates 13 are both inclined, and a plurality of leakage grooves 14 are opened on the top of each support plate 13, and a plurality of protrusions 15 are fixedly connected to the top of each support plate 13, each protrusion 15 is located on one side of a leakage groove 14, and the outer wall of the support plate 13 is rotatably connected to a plurality of flipping frames 16, and each flipping frame 16 is overlapped on a protrusion 15 On; the outside of the insulation bin 3 is connected to a number of electric telescopic rods 17, and the several electric telescopic rods 17 are all arranged at the bottom of the inner wall of the drying main body 1, and the output end of each electric telescopic rod 17 is fixedly connected to a connecting frame 18, and one end of each connecting frame 18 passes through the insulation bin 3 and extends to the interior of the insulation bin 3, and the ends of the several connecting frames 18 are commonly fixedly connected to a heat insulation board 19, and the bottom end of the heat insulation board 19 is rotatably connected to a support plate 20 with a hollow structure, and the inner diameter end of the support plate 20 is slidably connected to the outer wall of the limiting tube 12; the top of the support plate 20 is fixedly connected to a number of elastic support columns 21, and the top of each elastic support column 21 is fixedly connected to a push plate 22, and each push plate 22 is provided with a card slot 22-1, and each push plate 22 is located below a flipping frame 16.

[0044] Specifically, such as Figure 2 、 Figure 4 As shown, a motor 30 is fixedly connected to one side of the outer wall of the drying main body 1, and the output end of the motor 30 is connected to a transmission gear 31, and the top of the transmission gear 31 is rotatably connected to the outer wall of the drying main body 1, and a linkage gear rod 32 is engaged on one side of the transmission gear 31, and the upper and lower ends of the linkage gear rod 32 are rotatably connected to the inner wall of the drying main body 1, and one side of the linkage gear rod 32 is engaged with the outer wall of the rotating shaft frame 9.

[0045] During operation, the exhaust boxes 10 and the sieve plates 11 arranged inside the rotating shaft frame 9 are used to make the limestone raw material powder and fragments entering the heat-insulating bin 3 all fall on the surface of the sieve plates 11, and the motor 30 arranged outside the drying body 1 is started, so that the motor 30 drives the transmission gear 31 arranged at its output end to rotate, and the transmission gear 31 is used to drive the linkage gear rod 32 meshed with it, so that the linkage gear rod 32 drives the rotating shaft frame 9 to rotate in the chute 8, so that the limestone fragments are accumulated along the sieve plates 11 on the support plate 1 arranged between the sieve plates 11. 3, during this process, as the limestone raw material rolls, the limestone powder falls into the bottom of the insulation bin 3 along the several troughs 14 provided on the top of the support plate 13 and the sieve plate 11, which facilitates the stratified heating of the limestone fragments and the limestone powder. By providing a turning rack 16 on the outer wall of the support plate 13, the limestone blocks are accumulated on the top of the turning rack 16. By providing a plurality of protrusions 15 on one side of the top of the support plate 13 near the trough 14, the protrusions 15 are used to limit the limestone blocks that fall between the turning racks 16, thereby preventing the limestone blocks from being embedded in the turning racks 16.

[0046] In addition, by arranging a plurality of electric telescopic rods 17 on one side of the bottom of the inner wall of the drying body 1 close to the insulation bin 3, and a connecting frame 18 is arranged at the output end of the electric telescopic rod 17, an insulation board 19 is arranged at one end of the connecting frame 18 to prevent the high-temperature hot air in the insulation bin 3 from leaking quickly along the gap on the insulation bin 3, and by arranging a support plate 20 inside the insulation board 19 and arranging a plurality of elastic support columns 21 on the top of the support plate 20, when the electric telescopic rod 17 is extended, the electric telescopic rod 17 pushes the connecting frame 18 to move, and the connecting frame 18 drives the insulation board 19 and the support plate 20 to move, and the support plate 20 pushes the push plate 22 to move through the elastic support column 21, and the push plate 22 moves up to abut against the flipping frame 16, so that the flipping frame The bottom of 16 is clamped in the inside of the card slot 22-1. At this time, the electric telescopic rod 17 continues to push the support plate 20, the elastic support column 21 and the push plate 22 to move upward. The push plate 22 pushes the flip frame 16 to rotate through the card slot 22-1. When the flip frame 16 rotates, it separates from the protrusion 15, thereby opening the flip frame 16 and making the flip frame 16 push the limestone fragments placed on its surface, so that gaps are generated between the limestone fragments, which is convenient for the circulation of high-temperature hot air; this solves the problem that in the use of traditional raw material drying devices for active lime production, the high-temperature hot air is difficult to circulate between the limestone blocks due to the accumulation of limestone blocks, which not only causes uneven heating of the limestone blocks, but also easily causes overburning of the outer layer and underburning of the inner layer.

[0047] In this embodiment, if Figure 5 、 Figure 11 As shown, the inner wall of the limiting tube 12 is slidably connected to a screen tube 23, and the bottom of the screen tube 23 is fixedly connected to a plurality of extension frames 24. The outer wall of the limiting tube 12 is provided with a plurality of limiting grooves 25, and the inner wall of the limiting groove 25 is slidably connected to the outer wall of the extension frame 24, and the bottom of the extension frame 24 is fixedly connected to the top of the support plate 20.

[0048] The support plate 20 is pushed up by the extension frame 24, so that the screen tube 23 is separated from the limiting tube 12, and the limestone fragments accumulated on the surfaces of the inclined sieve plate 11 and the support plate 13 pass through the gap between the extension frame 24 and fall into the bottom of the insulating bin 3 along the limiting tube 12.

[0049] In this embodiment, if Figure 2 、 Figure 5 and Figure 7 As shown, a fixing ring 26 is sleeved on the bottom of the limiting tube 12, and a plurality of fixing plates 27 are rotatably connected to the outer wall of the fixing ring 26. A flipping comb 28 is rotatably connected to one side of each fixing plate 27, and a buffer pressure plate 29 is installed on one side of each flipping comb 28.

[0050] When the motor 30 drives the shaft frame 9 to rotate, the shaft frame 9 drives the limiting tube 12 to rotate through the exhaust box 10 and the sieve plate 11. The limiting tube 12 rotates while driving the sieve tube 23 to rotate. The sieve tube 23 drives the support plate 20 to rotate inside the insulation plate 19 through the extension frame 24. The limiting tube 12 is driven to rotate by the shaft frame 9, so that the fixing ring 26 drives the flipping comb 28 provided on one side of the fixing plate 27 to rotate at the bottom of the insulation bin 3. The flipping comb 28 is used to stir the limestone powder at the bottom of the insulation bin 3. A buffer pressure plate 29 is provided on one side of the flipping comb 28. The buffer pressure plate 29 is used to intermittently press down the flipped limestone powder, so that the surface of the limestone powder becomes wavy, thereby increasing the heating area of ​​the limestone powder and accelerating the drying of the limestone powder.

[0051] In this embodiment, if Figure 4 、 Figure 5 、 Figure 9 and Figure 10 As shown, a flow guide 33 is fixedly connected to one side of the outer wall of the hot air blower 4, and the output end of the flow guide 33 is fixedly connected to an air duct 34, one end of the air duct 34 is fixedly connected to a rotary joint 35, and one end of the rotary joint 35 is connected to a diverter 36, and several output ends at the top of the diverter 36 are respectively fixedly connected to the bottom of an exhaust box 10.

[0052] During operation, a flow guide 33 is provided on one side of the outer wall of the hot air blower 4, and the high-temperature hot air in the hot air blower 4 is sent into the air duct 34 provided at its output end by the flow guide 33. A rotary joint 35 is provided at one end of the air duct 34, so that the high-temperature hot air enters the diverter 36 through the rotary joint 35. The high-temperature hot air in the diverter 36 enters the several exhaust boxes 10 provided on the inner wall of the rotating shaft frame 9. The exhaust boxes 10 are used to uniformly heat the sieve plate 11 and the limestone blocks accumulated on the surface of the support plate 13. At the same time, since the rotary joint 35 is rotatably connected to the diverter 36, it does not affect the rotation of the diverter 36 driven by the exhaust box 10.

[0053] A process for drying raw materials for active lime production, which uses the above-mentioned device for drying raw materials for active lime production, is as follows:

[0054] S1: Limestone raw materials are fed into the insulation bin 3 through the feed pipe 2. The limestone blocks and limestone powder are screened by the screening mechanism. The screening mechanism drives the rotating shaft frame 9 to rotate through the motor 30, so that the limestone powder falls into the insulation bin 3 along the sieve plate 11 and the leakage groove 14 provided on the top of the support plate 13. The limestone blocks are limited by the turning frame 16.

[0055] S2: A fixing ring 26 is sleeved on the outside of the limiting tube 12, and a plurality of fixing plates 27 are arranged on the outside of the fixing ring 26. The limestone powder is stirred by using a turning comb 28 and a buffer pressure plate 29 provided on one side of the fixing plate 27 to increase the heating area of ​​the limestone powder.

[0056] S3: Start the hot air blower 4 to heat and dry the limestone blocks and limestone powder.

[0057] The following is a detailed description of the working principle of the raw material drying device and process for active lime production.

[0058] like Figure 1-11 As shown, the limestone raw material is fed into the heat-insulating bin 3 provided at the bottom of the inner wall of the drying main body 1 through the feed pipe 2 at the top of the drying main body 1, and a fixing frame 7 is provided at the top of the inner wall of the drying main body 1, and a chute 8 is provided on the fixing frame 7, and the chute 8 is used to limit the rotating shaft frame 9. At this time, the motor 30 provided on one side of the outer wall of the drying main body 1 is started, so that the motor 30 drives the transmission gear 31 provided at the output end, and drives the rotating shaft frame 9 to rotate through the transmission gear 31 and the linkage gear rod 32, so that the limestone raw material entering the heat-insulating bin 3 falls evenly into the sieve plate 11 provided in the rotating shaft frame 9, and as the rotating shaft frame 9 rotates, The limestone raw material moves toward the support plate 13 provided between the sieve plates 11, so that the fragments and powder in the limestone raw material are separated by the several leakage grooves 14 provided on the top of the support plate 13 and the sieve plates 11. At this time, the hot air blower 4 provided at the center of the bottom of the outer wall of the drying body 1 is started, so that the hot air blower 4 sends high-temperature hot air into the insulation bin 3 through the arc-shaped air duct 5 provided at the output end, and heats the limestone powder and fragments accumulated at the bottom of the insulation bin 3. By providing a ventilation filter 6 on one side of the inner wall of the arc-shaped air duct 5, the limestone powder and fragments are prevented from entering the arc-shaped air duct 5, which would cause the output end of the hot air blower 4 to be blocked.

[0059] While the limestone powder in the insulation bin 3 is heated by high-temperature hot air, a flow guide 33 provided on one side of the outer wall of the hot air blower 4 is used to send part of the high-temperature hot air into the diverter 36 along the air duct 34 provided at the output end of the flow guide 33, and the high-temperature hot air in the diverter 36 enters several exhaust boxes 10 provided on the inner wall of the rotating shaft frame 9. The exhaust boxes 10 are used to evenly heat the sieve plate 11 and the limestone blocks accumulated on the surface of the support plate 13. When the limestone raw material is dried, the sealing block provided at the bottom of one side of the drying body 1 is pulled to shovel the limestone raw material out of the insulation bin 3. This solves the problem that during use of the traditional raw material drying device for active lime production, the limestone raw material powder is mixed with fragments, which makes it easy for the limestone powder to be overheated when the limestone raw material is dried, thereby generating over-fired lime, which affects the subsequent reaction process.

[0060] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made based on the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A raw material drying device for active lime production, comprising a drying body, a sealing block provided at the bottom of one side of the drying body, characterized in that: A feed pipe is fixedly connected to the top of the drying body, a heat insulation bin is connected to the bottom of the inner wall of the drying body, a hot air blower is connected to the center of the bottom of the outer wall of the drying body, and an arc-shaped air duct is connected to the output end of the hot air blower, the arc-shaped air duct is connected to the heat insulation bin, and a ventilation filter is connected to one side of the inner wall of the arc-shaped air duct; The top of the drying body is connected to a fixed frame, and a slide groove is opened on one side of the inner wall of the fixed frame, and the interior of the slide groove is rotatably connected to a rotating shaft frame, the bottom of the rotating shaft frame is rotatably connected to the top of the heat insulation bin, and a screening mechanism is provided on the inner wall of the rotating shaft frame; The screening mechanism includes a plurality of exhaust boxes fixedly connected to the inner wall of the rotating shaft frame, and the outer wall of each exhaust box is fixedly connected to a screen plate, and one end of the plurality of screen plates is fixedly connected to the inner wall of the rotating shaft frame, and the ends of the plurality of screen plates away from the rotating shaft frame are commonly fixedly connected to a limiting tube, and the outer wall of the limiting tube is fixedly connected to a plurality of support plates, each of the support plates is located between two adjacent sieve plates, the sieve plates and the support plates are both inclined, and a plurality of leakage grooves are opened on the top of each support plate, and a plurality of protrusions are fixedly connected to the top of each support plate, each of the protrusions is respectively located on one side of a leakage groove, and a plurality of flip frames are rotatably connected to the top of each support plate, and each of the flip frames is overlapped on a protrusion; A plurality of electric telescopic rods are provided on the outer circumference of the heat insulation bin, and the plurality of electric telescopic rods are connected to the bottom inner wall of the drying body, and the output end of each electric telescopic rod is fixedly connected to a connecting frame, one end of each connecting frame passes through the heat insulation bin and extends to the interior of the heat insulation bin, and the ends of the plurality of connecting frames are commonly fixedly connected to an insulation board, and the bottom end of the interior of the insulation board is rotatably connected to a support disk of a hollow structure, and the inner diameter end of the support disk is slidably connected to the outer wall of the limiting tube; The top of the support plate is fixedly connected to a plurality of elastic support columns, and the top of the elastic support columns is fixedly connected to a push plate, and the push plate is located below the flip frame; The inner wall of the limiting tube is slidably connected to a screen tube, and the bottom of the screen tube is fixedly connected to a plurality of extension frames. The outer wall of the limiting tube is provided with a plurality of limiting grooves, and the inner walls of the limiting grooves are slidably connected to the outer walls of the extension frames, and the bottom of the extension frames is fixedly connected to the top of the support plate. The bottom of the limiting tube is sleeved with a fixing ring, and the outer wall of the fixing ring is rotatably connected to a plurality of fixing plates, one side of the fixing plate is rotatably connected to a flip comb, and a buffer pressure plate is installed on one side of the flip comb; A motor is fixedly connected to one side of the drying body, and a transmission gear is fixedly connected to the output end of the motor, and the top of the transmission gear is rotatably connected to the outer wall of the drying body; A linkage gear rod is meshed on one side of the transmission gear, and the upper and lower ends of the linkage gear rod are rotatably connected to the inner wall of the drying body, and one side of the outer wall of the linkage gear rod is meshed with the outer wall of the rotating shaft frame; A flow guide is fixedly connected to one side of the outer wall of the hot air blower, and the output end of the flow guide is fixedly connected to an air supply pipe, one end of the air supply pipe is fixedly connected to a rotary joint, and one end of the rotary joint is connected to a flow splitter, and several output ends on the top of the flow splitter are respectively fixedly connected to the bottom of the exhaust box; When the electric telescopic rod is extended, the electric telescopic rod pushes the connecting frame to move, and the connecting frame drives the heat insulation plate and the support plate to move. The support plate pushes the push plate to move through the elastic support column. The push plate moves up to abut against the flip frame, so that the bottom of the flip frame is clamped inside the slot. At this time, the electric telescopic rod continues to push the support plate, the elastic support column and the push plate to move upward. The push plate pushes the flip frame to rotate through the slot. When the flip frame rotates, it separates from the protrusion, realizing the opening of the flip frame and pushing the limestone fragments placed on its surface to create gaps between the limestone fragments, which is convenient for the circulation of high-temperature hot air. During operation, a sieve tube is arranged on the inner wall of the limiting tube to block the limestone fragments, ensuring that the limestone fragments do not fall into the bottom of the heat insulation bin through the limiting tube. The sieve tube is connected to the support plate through an extension frame, and the extension frame is slidably connected to the limiting groove arranged on the outer wall of the limiting tube, so that the sieve tube can slide up and down in the limiting tube. When the limestone blocks are dried, the electric telescopic rod is started again to extend, so that it pushes the support plate to further rise through the connecting frame and the heat insulation plate. At this time, the elastic support column is obstructed by the flipping frame and the push plate and shrinks. The support plate pushes the sieve tube up through the extension frame, so that the sieve tube is separated from the limiting tube, so that the limestone fragments accumulated on the surface of the inclined sieve plate and the support plate pass through the gap between the extension frame and fall into the bottom of the heat insulation bin along the limiting tube.

2. A process for drying raw materials for active lime production, the process using the device for drying raw materials for active lime production according to claim 1, characterized in that: The process is as follows: S1: The limestone raw materials are fed into the insulation bin through the feeding pipe, and the limestone blocks and limestone powder are separated by the screening mechanism. For screening, the screening mechanism drives the rotating shaft frame to rotate through the motor, so that the limestone powder flows along the sieve plate and the top of the support plate. The set leakage chute falls into the heat-insulating bin, and the limestone blocks are limited by the turning frame; S2: By setting a fixing ring on the outside of the limiting tube and setting several fixing plates on the outside of the fixing ring, The turning comb and buffer pressure plate set on one side turn the limestone powder to increase the heating area of ​​the limestone powder; S3: Start the hot air blower to heat and dry the limestone blocks and limestone powder.

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