A kind of active calcium oxide processing preheating treatment device and process

Abstract

The invention relates to the technical field of calcium oxide, and in particular to an active calcium oxide processing preheating treatment device and a process thereof, comprising a vertically arranged cylinder, a crushing structure is arranged at the top inner side of the cylinder, a feed port is connected to the upper end of the cylinder, a screening structure is arranged below the crushing structure, and a vertically arranged conveying structure is arranged outside the cylinder; according to the feed amount of limestone, a driving motor is turned on, the rotation speed of the driving motor is adjusted to a suitable state, a first output shaft and a second output shaft are driven to rotate synchronously by the driving motor, when the second output shaft rotates, a pneumatic driving structure is driven to drive a suitable number of first preheating plates and second preheating plates to move up, and a suitable number of preheating structures are put into the cylinder according to the feed amount of limestone, so as to reduce the power consumption of the equipment and reduce the waste of resources while ensuring the preheating of the limestone.

Description

Technical Field

[0001] The invention relates to the technical field of calcium oxide, and in particular to an active calcium oxide processing preheating treatment device and a process thereof. Background Art

[0002] Calcium oxide is obtained by placing limestone into a lime kiln for high-temperature calcination. Quicklime (calcium oxide) can be obtained after the calcination is completed. Currently, the limestone needs to be coarsely crushed and screened before calcination, and the screened limestone needs to be preheated. After the preheating is completed, it is transported to the lime kiln for calcination. At present, when preheating the limestone, the limestone preheating efficiency cannot be adjusted according to the feed amount of limestone, which affects the processing efficiency and easily causes insufficient subsequent calcination. Therefore, an activated calcium oxide processing preheating treatment device and a process thereof are proposed to facilitate adjusting the subsequent preheating efficiency of the limestone according to the feed amount of limestone. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an activated calcium oxide processing preheating treatment device, which is convenient for adjusting the subsequent preheating efficiency of the limestone according to the feed amount of the limestone.

[0004] The technical solution adopted by the present invention to solve its technical problems is an active calcium oxide processing preheating treatment device, comprising a vertically arranged cylinder, a crushing structure is provided at the top inner side of the cylinder, a feed port is connected to the upper end of the cylinder, a screening structure is provided below the crushing structure, a vertically arranged conveying structure is provided on the outer side of the cylinder, one side of the lower end of the conveying structure is connected to one side of the screening structure, a plurality of groups of preheating structures are provided below the screening structure, the preheating structures are all driven to rise and fall by the crushing structure, and a discharging structure is provided on one side of the lower end of the cylinder.

[0005] By adopting the above technical solution, according to the actual feed amount of limestone, the crushing structure is driven, and the crushing structure drives an appropriate number of preheating structures to lift, so as to ensure that the limestone is preheated by the preheating structure after being crushed;

[0006] Limestone is put into the cylinder through the feed port. After entering the cylinder, the limestone is crushed by the crushing structure to facilitate subsequent preheating. The crushed limestone enters several groups of preheating structures by the screening structure. The crushed limestone is preheated by the several groups of preheating structures to ensure the preheating effect. At the same time, the preheated limestone is transported to the discharging structure at the lower end of the cylinder and discharged from the discharging structure. After being discharged, the preheated limestone can be calcined to obtain quicklime.

[0007] The conveying structure can transport the unqualified limestone screened out by the screening structure to the feed port again, and the crushing structure can crush it for the second time, so as to further ensure the crushing effect;

[0008] It should be pointed out that when the feed amount of limestone is large, the rotation speed of the crushing structure is high, and the number of preheating structures put into use is large, so as to ensure the preheating effect of the crushed limestone. Similarly, when the feed amount of limestone is small, the rotation speed of the crushing structure is low, and the number of preheating structures put into use is small, so as to further ensure the preheating effect of the crushed limestone. The rotation speed of the crushing structure is adjusted according to the actual feed amount of limestone, and the number of preheating structures put into use is adjusted accordingly.

[0009] Specifically, the crushing structure includes two groups of a first crushing roller and a second crushing roller installed above the inside of the cylinder, the first crushing roller is coaxially connected to a first output shaft, the second crushing roller is coaxially connected to a second output shaft, one end of the first output shaft and one end of the second output shaft are both connected to a driving motor, and the two groups of driving motors are fixedly connected to the outer wall of the cylinder.

[0010] By adopting the above technical scheme, according to the feed amount of limestone, the driving motor is turned on in advance, and the speed of the driving motor is adjusted to a suitable state. At the same time, the driving motor drives the first crushing roller and the second crushing roller to rotate through the first output shaft and the second output shaft respectively. At this time, the limestone is transported into the cylinder through the feed port. After the limestone enters the cylinder, the limestone falls between the first crushing roller and the second crushing roller, and is crushed by the first crushing roller and the second crushing roller, so as to ensure the subsequent preheating effect.

[0011] Specifically, the screening structure includes an inclined screen plate, the lower parts of both ends of the screen plate are fixedly connected with sliders, the inner wall of the cylinder is provided with a slide groove corresponding to the slider, the slider is located in the slide groove and is slidably connected to the slide groove, one side of the slider is fixedly connected to the inner wall of the slide groove through a first spring, and a material guide funnel is provided below the screen plate, and the material guide funnel is fixedly connected to the inner wall of the cylinder;

[0012] A vertically arranged slot is provided on the outer side of the cylinder, and the slot is communicated with the inside of the cylinder. A vertically arranged mounting shell is fixedly connected to the outer side of the slot. A vertically arranged driving rod is rotatably arranged inside the mounting shell. A first cam and several groups of second cams are fixedly connected to the driving rod. The first cam is located above the several groups of second cams. The first cam is in compression contact with one side of the screen plate. The upper end of the driving rod passes through the mounting shell and is rotatably connected to the mounting shell. A gear is fixedly connected to the upper end of the driving rod. The end of the first output shaft away from the driving motor passes through the cylinder and is fixedly connected to a vortex. The vortex is meshed with the gear for transmission.

[0013] By adopting the above technical solution, when the driving motor drives the first output shaft to rotate, the vortex at one end of the first output shaft meshes with the gear for transmission, thereby driving the driving rod to rotate. When the driving rod rotates, it drives the first cam and several groups of second cams to rotate. When the first cam rotates, it is pressed and contacted with one side of the screen plate, thereby driving the screen plate to move. When the screen plate moves, the sliding block slides in the slide groove to improve the movement stability of the screen plate. At the same time, when the screen plate moves, the first spring is squeezed to accumulate force. With the rotation of the driving rod, when the first cam no longer squeezes the screen plate to move, the screen plate is reset and moved by relying on the reset effect of the first spring, so that the screen plate vibrates reciprocatingly.

[0014] The crushed limestone enters above the screen plate, and the first cam and the first spring drive the screen plate to vibrate back and forth, so as to screen the limestone. The qualified limestone passes through the screen plate and enters the guide hopper, and the guide hopper transports the screened limestone to the preheating structure, and the preheating structure preheats it.

[0015] Specifically, the conveying structure includes a feeding barrel fixedly connected to the outside of the cylinder, an opening is provided at the upper part of the cylinder, the lower end of the screen plate corresponds to the opening, the opening is connected to the lower part of the feeding barrel, a vertically arranged screw elevator is fixedly connected inside the feeding barrel, the upper end of the feeding barrel is connected to an inclined feeding pipe, and the lower end of the feeding pipe is connected to the feeding port.

[0016] By adopting the above technical scheme, after the crushed limestone enters above the sieve plate, the sieve plate is used to screen the limestone, and the qualified limestone passes through the sieve plate into the material guide funnel, and the unqualified limestone is moved to the opening through the inclined sieve plate and enters the feeding barrel through the opening. The limestone entering the feeding barrel is lifted and transported by a spiral elevator, and the unqualified limestone is transported to the feed port again by a feed pipe, and is crushed for the second time by a crushing structure, so as to ensure the crushing effect.

[0017] Specifically, the preheating structure includes a first preheating plate and a second preheating plate, one end of the first preheating plate is hinged to one end of the second preheating plate through a hinge shaft, a connecting port is provided on the upper surface of the first preheating plate close to the hinge shaft, a symmetrically arranged support rod is hinged to one end of the second preheating plate away from the hinge shaft, a ball bearing is connected to the side of the support rod away from the second preheating plate, the first preheating plate and the second preheating plate are adjacently stacked at the lower part of the cylinder, the ball bearing is in rolling contact with the upper surface of the first preheating plate located below, and one side of the first preheating plate is in extrusion contact with the second cam;

[0018] Both ends of the first preheating plate are fixedly connected with sliding plates, and a support seat is provided on the side of the sliding plate away from the first preheating plate. A groove is provided on the side of the support seat close to the sliding plate, and the sliding plate corresponds to the groove and is slidably connected to the groove. One end of the sliding plate is fixedly connected to the inner wall of the groove through a second spring, and the inner wall of the cylinder is provided with positioning grooves corresponding to the two ends of the support seat. The two ends of the support seat are in sliding contact with the inner wall of the cylinder through the positioning grooves. Steel cables are fixedly connected between the upper and lower adjacent support seats, and a pneumatic drive structure is provided inside the cylinder. The output end of the pneumatic drive structure is fixedly connected to the support seat of the first preheating plate located at the top, and the pneumatic drive structure is driven to rise and fall by the second output shaft.

[0019] By adopting the above technical scheme, according to the feed amount of limestone, the driving motor is turned on, the speed of the driving motor is adjusted to a suitable state, the first output shaft and the second output shaft are driven to rotate synchronously by the driving motor, the second output shaft drives the pneumatic driving structure when it rotates, and the pneumatic driving structure drives the support seat of the first preheating plate located at the top to move up, and when a group of first preheating plates moves up, the second preheating plates are driven to move up through the hinge shaft, and at the same time the second preheating plates are unfolded, and when the second preheating plates move up, the rolling contact between the balls and the upper surface of the first preheating plates located below can improve the movement stability of the second preheating plates, and when a group of first preheating plates moves up to a certain position, the steel cable drives the next adjacent group of first preheating plates to move up, so that according to the speed of the second output shaft, the pneumatic driving structure drives the appropriate number of first preheating plates and second preheating plates to move up, and according to the feed amount of limestone, the appropriate number of preheating structures are put in, so as to ensure the preheating effect of the screened limestone;

[0020] When the pneumatic driving structure drives a suitable number of first preheating plates and second preheating plates to move to a certain position, one side of the first preheating plate corresponds to several groups of second cams. When the qualified limestone passes through the sieve plate and enters the guide funnel, it falls on the upper surface of the first preheating plate located at the top, and is squeezed to move by the rotation of the second cam. When the first preheating plate moves, it drives the sliding plate to slide in the cutting groove. When the sliding plate slides, it squeezes the second spring to store force. With the rotation of the driving rod, when the second cam no longer squeezes the first preheating plate, it drives the first preheating plate to reset and move by relying on the reset effect of the first spring, thereby driving the first preheating plate to reciprocate through the rotation of the second cam. During the reciprocating movement of the first preheating plate, it drives the crushed limestone to move. After the limestone moves to a certain position, it falls on the top of the second preheating plate through the connecting port. The reciprocating movement of the second preheating plate drives the limestone to move, and the limestone is transported to the upper surface of the next group of first preheating plates, thereby relying on several groups of first preheating plates and second preheating plates to preheat and transport the limestone;

[0021] When the feed amount is large, the speed of the driving motor is high, and the driving rod is driven to rotate by the first output shaft. The speed of the driving rod is high, so as to ensure that the screening speed of the screen plate is fast, the feeding efficiency is guaranteed, and it is not easy to cause blockage; when the second cam rotates at a fast speed, the first preheating plate and the second preheating plate reciprocate at a fast speed, so as to ensure that the limestone can be preheated and quickly transported at the same time, further preventing blockage caused by a large feed amount;

[0022] Similarly, when the feed volume is small, the speed of the driving motor is low, fewer preheating structures are put into use, the speed of the first cam and several groups of second cams is low, and the screening speed of the screen plate and the reciprocating speed of the first preheating plate are low. In this way, while ensuring the limestone preheating work, the power consumption of the equipment is reduced and the waste of resources is reduced;

[0023] By relying on the support seat to slide in the positioning groove, the movement stability of the first preheating plate can be improved.

[0024] Specifically, the pneumatic drive structure includes two groups of pneumatic telescopic rods symmetrically installed at the lower end of the cylinder, and the output ends of the pneumatic telescopic rods are fixedly connected to the support base of the first preheating plate located at the top;

[0025] The end of the second output shaft away from the driving motor passes through the cylinder and is fixedly connected to the extrusion cam. A piston cylinder is provided on the outside of the cylinder. A piston plate is sealingly and slidably connected inside the piston cylinder. The piston plate is fixedly connected to the inner wall of the piston cylinder through a return spring. A piston rod is fixedly connected to the side of the piston plate close to the extrusion cam. One end of the piston rod is in extrusion contact with the extrusion cam. A one-way inlet valve and a one-way outlet valve are connected to one side of the piston cylinder. The one-way outlet valve is connected to the pneumatic telescopic rod through a pipeline. The lower ends of the two groups of pneumatic telescopic rods are connected to inlet joints. The one-way outlet valve is respectively connected to the inlet joints at the lower ends of the two groups of pneumatic telescopic rods through branch pipes. A damping exhaust pipe is connected to the piston cylinder.

[0026] By adopting the above technical solution, when the second output shaft rotates, the extrusion cam is driven to rotate, and when the extrusion cam rotates, it is squeezed and contacted with one end of the piston rod, and the piston plate is driven to move by the piston rod. When the piston plate moves, the reset spring is squeezed, and at the same time, the gas is delivered to the two groups of pneumatic telescopic rods by the one-way air outlet valve and the branch pipe, and the output end of the pneumatic telescopic rod is driven to move upward, thereby driving the support seat of the first preheating plate located at the top to move upward, and the piston plate is driven to reset and move by the one-way air inlet valve and the reset spring. When the piston plate resets and moves, the piston rod is driven to reset and move, thereby relying on the rotation and extrusion of the extrusion cam to drive the output ends of the two groups of pneumatic telescopic rods to move upward;

[0027] When the limestone processing is completed, the drive motor is turned off, and the gas in the two sets of pneumatic telescopic rods will be discharged through the branch pipe and the damping exhaust pipe, so that several sets of preheating structures will move down and reset, so as to facilitate subsequent reuse;

[0028] It should be pointed out that when the rotation speed of the second output shaft is higher, the speed at which the extrusion cam squeezes the piston rod will also be faster. At this time, the damping exhaust pipe cannot meet the exhaust speed, and the gas will enter the two groups of pneumatic telescopic rods through the branch pipes, and thereby drive several groups of first preheating plates and second preheating plates to move up. While the extrusion cam increases the extrusion speed of the piston rod, the exhaust speed of the damping exhaust pipe will also increase due to the increase in the air pressure in the piston cylinder; when the output ends of the two groups of pneumatic telescopic rods reach a certain position, the piston rod is squeezed by the extrusion cam, and the gas is discharged through the damping exhaust pipe, thereby reaching a balanced state, thereby ensuring the stability of the preheating structure after movement.

[0029] Specifically, the discharge structure includes a discharge port opened on one side of the bottom of the cylinder, and an inclined guide plate is provided at the bottom of the cylinder, the guide plate corresponds to the discharge port, the lower part of the guide plate is hinged to the inner wall of the cylinder through a spring shaft, the discharge port is connected to a discharge pipe, and one end of the discharge pipe is connected to a horizontally arranged screw feeder.

[0030] By adopting the above technical solution, the preheated limestone falls onto the guide plate through the second preheating plate, and the preheated limestone is transported to the screw feeder by means of the guide plate and the opening, and the preheated limestone is transported by means of the screw feeder, so as to facilitate the subsequent calcination thereof;

[0031] The material guide plate can be easily swung and reset by relying on the spring shaft, so that several groups of first preheating plates and second preheating plates can be easily moved up and down.

[0032] Specifically, electric heating wires are installed in the first preheating plate and the second preheating plate, and a press-delay switch is installed on one side of the first preheating plate close to the second cam, and the press-delay switch is used to connect the electric heating wire to power after being squeezed.

[0033] By adopting the above technical solution, when the pneumatic telescopic rod drives several groups of first preheating plates to move to a certain position, the second cam is pressed and contacted with one side of the first preheating plate, and the pressing delay switch is opened by the squeezing of the second cam, so that the heating wires in the first preheating plate and the second preheating plate are energized and heated, thereby preheating the limestone;

[0034] By relying on the press-delay switch, it can be ensured that when the second cam is no longer in squeezing contact with the press-delay switch, the press-delay switch slowly resets, the heating wire can continue to work for a certain period of time, and the heating wire can work stably during the intermittent squeezing of the press-delay switch by the second cam; and after the second cam stops working, the press-delay switch resets to automatically turn off the heating wire.

[0035] An active calcium oxide processing preheating treatment process, using the above-mentioned active calcium oxide processing preheating treatment device, comprises the following steps:

[0036] S1. Pre-adjust the working speed of the crushing structure according to the limestone feed amount;

[0037] S2. Adjust the number of preheating structures put into use according to the working speed of the crushing structure;

[0038] S3, putting the limestone into the crushing structure for crushing;

[0039] S4, the crushed limestone is screened by the screening structure and then preheated by the preheating structure;

[0040] S5. After preheating, the limestone is discharged through the discharging structure.

[0041] Beneficial effects of the present invention:

[0042] (1) The present invention discloses an active calcium oxide processing preheating treatment device and process thereof. According to the feed amount of limestone, the driving motor is turned on and the speed of the driving motor is adjusted to a suitable state. The driving motor drives the first output shaft and the second output shaft to rotate synchronously. When the second output shaft rotates, the air pressure driving structure drives the appropriate number of first preheating plates and second preheating plates to move up. According to the feed amount of limestone, an appropriate number of preheating structures are put into use. In this way, while ensuring the limestone preheating work, the power consumption of the equipment is reduced and the waste of resources is reduced.

[0043] (2) The active calcium oxide processing preheating treatment device and process described in the present invention, according to the feed amount of limestone, turns on the driving motor with the first output shaft and the driving rod to rotate, and the driving rod rotates to drive the first cam and a plurality of groups of second cams to rotate, and relies on the rotation of the first cam to ensure the screening speed of the screen plate, ensure the feed efficiency, and not easily cause blockage; at the same time, the second cam drives the first preheating plate and the second preheating plate to move back and forth, thereby ensuring that the limestone can be preheated and quickly transported, further preventing blockage when the feed amount is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0045] Figure 1 is an axonometric view of the present invention;

[0046] Figure 2 It is a schematic diagram of the cross-sectional structure of the cylinder part of the present invention;

[0047] Figure 3 It is a schematic diagram of the driving motor connection structure of the present invention;

[0048] Figure 4 for Figure 2 A schematic diagram of the enlarged structure of region A;

[0049] Figure 5 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0050] Figure 6 This is a schematic diagram of the structure of the pneumatic telescopic rod of the present invention after it is lifted

[0051] Figure 7 for Figure 5 Schematic diagram of the enlarged structure of region B;

[0052] Figure 8 for Figure 5 Schematic diagram of the enlarged structure of the C region;

[0053] Fig. 9 for Figure 5 Schematic diagram of the enlarged structure of the D region;

[0054] Fig.10 It is a schematic diagram of the cross-sectional structure of the piston cylinder of the present invention;

[0055] Fig.11 It is a schematic diagram of the connection structure of the first preheating plate and the second preheating plate of the present invention;

[0056] Fig.12 It is a schematic diagram of the connection structure of multiple groups of first preheating plates and second preheating plates after being unfolded according to the present invention;

[0057] Fig.13 for Fig.12 Schematic diagram of the enlarged structure of the E region;

[0058] In the figure: 1, cylinder; 2, feed port; 3, first crushing roller; 4, second crushing roller; 5, first output shaft; 6, second output shaft; 7, drive motor; 8, sieve plate; 9, slider; 10, slide; 11, first spring; 12, guide funnel; 13, slot; 14, mounting shell; 15, drive rod; 16, first cam; 17, second cam; 18, gear; 19, volute; 20, feed cylinder; 21, opening; 22, screw elevator; 23, feed pipe; 24, first preheating plate; 25, second preheating plate; 26, Articulated shaft; 27, support rod; 28, ball bearing; 29, connecting port; 30, support seat; 31, cutting groove; 32, second spring; 33, positioning groove; 34, steel cable; 35, pneumatic telescopic rod; 36, extrusion cam; 37, piston plate; 38, piston rod; 39, one-way air inlet valve; 40, one-way air outlet valve; 41, air inlet joint; 42, damping exhaust pipe; 43, discharge port; 44, guide plate; 45, spring shaft; 46, discharge pipe; 47, screw feeder; 48, piston cylinder; 49, sliding plate; 50, return spring. DETAILED DESCRIPTION

[0059] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0060] In order to adjust the preheating efficiency of limestone according to the feed amount of limestone, as an embodiment of the present invention, Figure 1-3 As shown, an active calcium oxide processing and preheating treatment device described in the present invention comprises a vertically arranged cylinder 1, a crushing structure is provided on the inner top of the cylinder 1, a feed port 2 is connected to the upper end of the cylinder 1, a screening structure is provided below the crushing structure, a vertically arranged conveying structure is provided on the outer side of the cylinder 1, one side of the lower end of the conveying structure is connected to one side of the screening structure, a plurality of groups of preheating structures are provided below the screening structure, the preheating structures are all driven to rise and fall by the crushing structure, and a discharging structure is provided on one side of the lower end of the cylinder 1.

[0061] When in use, according to the actual feed amount of limestone, the crushing structure is driven, and the crushing structure drives a suitable number of preheating structures to lift, so as to ensure that the limestone is preheated by the preheating structure after being crushed;

[0062] Limestone is put into the cylinder 1 through the feed port 2. After entering the cylinder 1, the limestone is crushed by the crushing structure to facilitate subsequent preheating. The crushed limestone enters several groups of preheating structures by the screening structure. The crushed limestone is preheated by the several groups of preheating structures to ensure the preheating effect. At the same time, the preheated limestone is transported to the discharging structure at the lower end of the cylinder 1 and discharged from the discharging structure. After being discharged, the preheated limestone can be calcined to obtain quicklime.

[0063] The unqualified limestone screened out by the screening structure can be transported to the feed port 2 again by the conveying structure, and the limestone can be crushed for the second time by the crushing structure to further ensure the crushing effect;

[0064] It should be pointed out that when the feed amount of limestone is large, the rotation speed of the crushing structure is high, and the number of preheating structures put into use is large, so as to ensure the preheating effect of the crushed limestone. Similarly, when the feed amount of limestone is small, the rotation speed of the crushing structure is low, and the number of preheating structures put into use is small, so as to further ensure the preheating effect of the crushed limestone. The rotation speed of the crushing structure is adjusted according to the actual feed amount of limestone, and the number of preheating structures put into use is adjusted accordingly.

[0065] In order to facilitate the crushing of limestone, for example, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the present invention also includes that the crushing structure includes two groups of first crushing rollers 3 and second crushing rollers 4 installed above the inside of the cylinder 1, the first crushing roller 3 is coaxially connected to the first output shaft 5, the second crushing roller 4 is coaxially connected to the second output shaft 6, one end of the first output shaft 5 and one end of the second output shaft 6 are both connected to a driving motor 7, and the two groups of driving motors 7 are fixedly connected to the outer wall of the cylinder 1.

[0066] When in use, according to the feed amount of limestone, the drive motor 7 is turned on in advance, and the speed of the drive motor 7 is adjusted to a suitable state. At the same time, the drive motor 7 drives the first crushing roller 3 and the second crushing roller 4 to rotate through the first output shaft 5 and the second output shaft 6 respectively. At this time, the limestone is transported to the cylinder 1 through the feed port 2. After the limestone enters the cylinder 1, the limestone falls between the first crushing roller 3 and the second crushing roller 4, and is crushed by the first crushing roller 3 and the second crushing roller 4, so as to ensure the subsequent preheating effect.

[0067] In order to facilitate the screening of the crushed limestone, for example, Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 As shown, the present invention also includes that the screening structure includes an inclined screen plate 8, the lower parts of both ends of the screen plate 8 are fixedly connected with sliders 9, the inner wall of the cylinder 1 is provided with a slide groove 10 corresponding to the slider 9, the slider 9 is located in the slide groove 10 and is slidably connected to the slide groove 10, one side of the slider 9 is fixedly connected to the inner wall of the slide groove 10 through a first spring 11, and a material guide funnel 12 is provided below the screen plate 8, and the material guide funnel 12 is fixedly connected to the inner wall of the cylinder 1;

[0068] A vertically arranged slot 13 is provided on the outer side of the cylinder 1, and the slot 13 is communicated with the interior of the cylinder 1. A vertically arranged mounting shell 14 is fixedly connected to the outer side of the slot 13. A vertically arranged driving rod 15 is rotatably arranged inside the mounting shell 14. A first cam 16 and a plurality of groups of second cams 17 are fixedly connected to the driving rod 15. The first cam 16 is located above the plurality of groups of second cams 17. The first cam 16 is in extrusion contact with one side of the sieve plate 8. The upper end of the driving rod 15 passes through the mounting shell 14 and is rotatably connected to the mounting shell 14. A gear 18 is fixedly connected to the upper end of the driving rod 15. The end of the first output shaft 5 away from the driving motor 7 passes through the cylinder 1 and is fixedly connected to a vortex 19, and the vortex 19 is meshed with the gear 18 for transmission.

[0069] When in use, when the driving motor 7 drives the first output shaft 5 to rotate, the volute 19 at one end of the first output shaft 5 meshes with the gear 18 for transmission, thereby driving the driving rod 15 to rotate. When the driving rod 15 rotates, it drives the first cam 16 and a plurality of groups of second cams 17 to rotate. When the first cam 16 rotates, it is pressed and contacted with one side of the sieve plate 8, thereby driving the sieve plate 8 to move. When the sieve plate 8 moves, the sliding block 9 slides in the slide groove 10 to improve the movement stability of the sieve plate 8. At the same time, when the sieve plate 8 moves, the first spring 11 is squeezed to store force. With the rotation of the driving rod 15, when the first cam 16 no longer squeezes the sieve plate 8 to move, the sieve plate 8 is reset and moved by relying on the reset effect of the first spring 11, so that the sieve plate 8 reciprocates.

[0070] The crushed limestone enters above the sieve plate 8, and is driven to vibrate back and forth by the first cam 16 and the first spring 11, so as to screen the limestone. The qualified limestone passes through the sieve plate 8 and enters the guide hopper 12, and the guide hopper 12 transports the screened limestone to the preheating structure, where it is preheated.

[0071] In order to facilitate the secondary crushing of the unqualified limestone, for example, Figure 1 , Figure 2 , Figure 5 , Figure 7As shown, the present invention also includes that the conveying structure includes a feeding barrel 20 fixedly connected to the outside of the cylinder 1, an opening 21 is provided at the upper part of the cylinder 1, the lower end of the screen plate 8 corresponds to the opening 21, the opening 21 is connected to the lower part of the feeding barrel 20, a vertically arranged screw elevator 22 is fixedly connected inside the feeding barrel 20, the upper end of the feeding barrel 20 is connected to an inclined feeding pipe 23, and the lower end of the feeding pipe 23 is connected to the feeding port 2.

[0072] When in use, after the crushed limestone enters above the sieve plate 8, the sieve plate 8 is used to screen the limestone. The qualified limestone passes through the sieve plate 8 and enters the guide funnel 12. The unqualified limestone will move to the opening 21 through the inclined sieve plate 8 and enter the feeding barrel 20 through the opening 21. The limestone entering the feeding barrel 20 is lifted and transported by the spiral elevator 22. At the same time, the unqualified limestone is transported to the feed port 2 again by the feed pipe 23 and is crushed for the second time by the crushing structure to ensure the crushing effect.

[0073] In order to ensure that the screened limestone is preheated, for example, Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.11 , Fig.12 As shown, the present invention also includes that the preheating structure includes a first preheating plate 24 and a second preheating plate 25, one end of the first preheating plate 24 is hinged to one end of the second preheating plate 25 through a hinge shaft 26, a through-connecting opening 29 is provided on the upper surface of the first preheating plate 24 on the side close to the hinge shaft 26, and a symmetrically arranged support rod 27 is hinged to one end of the second preheating plate 25 away from the hinge shaft 26, and a ball 28 is connected to the side of the support rod 27 away from the second preheating plate 25, and the adjacent first preheating plates 24 and second preheating plates 25 are stacked at the lower part of the cylinder 1, and the ball 28 is in rolling contact with the upper surface of the first preheating plate 24 located below, and one side of the first preheating plate 24 is in extrusion contact with the second cam 17;

[0074] Both ends of the first preheating plate 24 are fixedly connected with sliding plates 49, and a support seat 30 is provided on the side of the sliding plate 49 away from the first preheating plate 24. A groove 31 is opened on the side of the support seat 30 close to the sliding plate 49, and the sliding plate 49 corresponds to the groove 31 and is slidably connected to the groove 31. One end of the sliding plate 49 is fixedly connected to the inner wall of the groove 31 through a second spring 32, and the inner wall of the cylinder 1 is provided with positioning grooves 33 corresponding to the two ends of the support seat 30. The two ends of the support seat 30 are in sliding contact with the inner wall of the cylinder 1 through the positioning grooves 33, and steel cables 34 are fixedly connected between the upper and lower adjacent support seats 30. A pneumatic drive structure is provided inside the cylinder 1, and the output end of the pneumatic drive structure is fixedly connected to the support seat 30 of the first preheating plate 24 located at the top, and the pneumatic drive structure is driven to rise and fall by the second output shaft 6.

[0075] When in use, according to the feed amount of limestone, the drive motor 7 is turned on, the speed of the drive motor 7 is adjusted to a suitable state, and the first output shaft 5 and the second output shaft 6 are driven to rotate synchronously by the drive motor 7. When the second output shaft 6 rotates, the air pressure drive structure is driven, and the air pressure drive structure is used to drive the support seat 30 of the first preheating plate 24 located at the top to move up. When a group of first preheating plates 24 move up, the second preheating plates 25 are driven to move up through the hinge shaft 26. At the same time, the second preheating plates 25 are unfolded. When the second preheating plates 25 move up, The moving stability of the second preheating plate 25 can be improved by the rolling contact between the ball bearings 28 and the upper surface of the first preheating plate 24 located below. When a group of first preheating plates 24 moves up to a certain position, the steel cable 34 drives the adjacent next group of first preheating plates 24 to move up, thereby driving the air pressure driving structure according to the rotation speed of the second output shaft 6 to drive a suitable number of first preheating plates 24 and second preheating plates 25 to move up, and a suitable number of preheating structures are put into use according to the feed amount of limestone, so as to ensure the preheating effect of the screened limestone;

[0076] When the pneumatic driving structure drives a suitable number of first preheating plates 24 and second preheating plates 25 to move to a certain position, at this time, one side of the first preheating plate 24 corresponds to a plurality of groups of second cams 17. When the qualified limestone passes through the sieve plate 8 and enters the guide hopper 12, it falls on the upper surface of the first preheating plate 24 located at the top, and is squeezed to move by the rotation of the second cam 17. When the first preheating plate 24 moves, it drives the sliding plate 49 to slide in the cutting groove 31. When the sliding plate 49 slides, it squeezes the second spring 32 to store force. As the driving rod 15 rotates, when the second cam 17 no longer squeezes the first preheating plate 24, the second cam 17 is pressed to move. When the first preheating plate 24 is moved, the first preheating plate 24 is reset and moved by the reset effect of the first spring 11, so that the first preheating plate 24 is driven to reciprocate by the rotation of the second cam 17. During the reciprocating movement of the first preheating plate 24, the crushed limestone is driven to move. After the limestone moves to a certain position, it falls onto the top of the second preheating plate 25 through the connecting port 29. The reciprocating movement of the second preheating plate 25 drives the limestone to move and transports the limestone to the upper surface of the next group of first preheating plates 24. In this way, the limestone is preheated and transported by several groups of first preheating plates 24 and second preheating plates 25.

[0077] When the feed amount is large, the speed of the driving motor 7 is high, and the driving rod 15 is driven to rotate by the first output shaft 5. The speed of the driving rod 15 is high, so as to ensure that the screening speed of the screen plate 8 is fast, the feeding efficiency is guaranteed, and it is not easy to cause blockage; when the second cam 17 rotates at a fast speed, the first preheating plate 24 and the second preheating plate 25 reciprocate at a fast speed, so as to ensure that the limestone can be preheated and quickly transported at the same time, and further prevent blockage when the feed amount is large;

[0078] Similarly, when the feed amount is small, the speed of the driving motor 7 is low, fewer preheating structures are put into use, the speed of the first cam 16 and several groups of second cams 17 is low, and the screening speed of the screen plate 8 and the reciprocating speed of the first preheating plate 24 are low, thereby ensuring the limestone preheating work while reducing the power consumption of the equipment and reducing resource waste;

[0079] By relying on the support base 30 to slide in the positioning groove 33, the movement stability of the first preheating plate 24 can be improved.

[0080] In order to facilitate driving the support base 30 of the first preheating plate 24 located at the top to move upward, for example, Figure 1 , Figure 4 , Figure 8 , Fig. 9 , Fig.10As shown, the present invention also includes that the pneumatic drive structure includes two groups of pneumatic telescopic rods 35 symmetrically installed at the lower end of the cylinder 1, and the output ends of the pneumatic telescopic rods 35 are fixedly connected to the support base 30 of the first preheating plate 24 located at the top;

[0081] The end of the second output shaft 6 away from the driving motor 7 passes through the cylinder 1 and is fixedly connected to the extrusion cam 36. A piston cylinder 48 is provided on the outer side of the cylinder 1. A piston plate 37 is sealingly and slidably connected inside the piston cylinder 48. The piston plate 37 is fixedly connected to the inner wall of the piston cylinder 48 through a return spring 50. A piston rod 38 is fixedly connected to the side of the piston plate 37 close to the extrusion cam 36. One end of the piston rod 38 is in extrusion contact with the extrusion cam 36. A one-way air inlet valve 39 and a one-way air outlet valve 40 are connected to one side of the piston cylinder 48. The one-way air outlet valve 40 is connected to the pneumatic telescopic rod 35 through a pipeline. The lower ends of the two groups of pneumatic telescopic rods 35 are connected to an air inlet joint 41. The one-way air outlet valve 40 is respectively connected to the air inlet joints 41 at the lower ends of the two groups of pneumatic telescopic rods 35 through branch pipes. A damping exhaust pipe 42 is connected to the piston cylinder 48.

[0082] When in use, the second output shaft 6 drives the extrusion cam 36 to rotate when it rotates. When the extrusion cam 36 rotates, it squeezes and contacts with one end of the piston rod 38, and the piston plate 37 is driven to move by the piston rod 38. When the piston plate 37 moves, it squeezes the return spring 50. At the same time, the one-way air outlet valve 40 and the branch pipe are used to transport the gas to the two groups of pneumatic telescopic rods 35, and thereby drive the output end of the pneumatic telescopic rod 35 to move upward, thereby driving the support seat 30 of the first preheating plate 24 located at the top to move upward, and the one-way air inlet valve 39 and the return spring 50 are used to drive the piston plate 37 to reset and move. When the piston plate 37 resets and moves, it drives the piston rod 38 to reset and move, thereby relying on the rotation and extrusion of the extrusion cam 36 to drive the output ends of the two groups of pneumatic telescopic rods 35 to move upward;

[0083] When the limestone processing is completed, the drive motor 7 is turned off, and the gas in the two sets of pneumatic telescopic rods 35 is discharged through the branch pipe and the damping exhaust pipe 42, so that the several sets of preheating structures are moved down and reset, so as to facilitate subsequent reuse;

[0084] It should be pointed out that when the rotation speed of the second output shaft 6 is higher, the speed at which the extrusion cam 36 squeezes the piston rod 38 is faster. At this time, the damping exhaust pipe 42 cannot meet the exhaust speed, and the gas will enter the two groups of pneumatic telescopic rods 35 through the branch pipe, and thereby drive several groups of first preheating plates 24 and second preheating plates 25 to move upward. While the extrusion cam 36 increases the extrusion speed of the piston rod 38, the exhaust speed of the damping exhaust pipe 42 will also increase due to the increase in the air pressure in the piston cylinder 48; when the output ends of the two groups of pneumatic telescopic rods 35 reach a certain position, the piston rod 38 is squeezed by the extrusion cam 36, and the gas is discharged through the damping exhaust pipe 42, thereby reaching a balanced state, thereby ensuring the stability of the preheating structure after movement.

[0085] In order to facilitate the transportation of preheated limestone, for example, Figure 1 , Figure 5 , Figure 6 As shown, the present invention also includes that the discharge structure includes a discharge port 43 opened on one side of the bottom of the cylinder 1, and an inclined guide plate 44 is provided at the bottom of the cylinder 1, and the guide plate 44 corresponds to the discharge port 43, and the lower part of the guide plate 44 is hinged to the inner wall of the cylinder 1 through a spring shaft 45, and the discharge port 43 is connected to a discharge pipe 46, and one end of the discharge pipe 46 is connected to a horizontally arranged screw feeder 47.

[0086] When in use, the preheated limestone falls onto the guide plate 44 through the second preheating plate 25, and the preheated limestone is transported to the screw feeder 47 by means of the guide plate 44 and the opening 21, and the preheated limestone is transported by means of the screw feeder 47, so as to facilitate subsequent calcination.

[0087] The spring shaft 45 can facilitate the swinging and resetting of the guide plate 44, thereby facilitating the up and down movement of a plurality of groups of first preheating plates 24 and second preheating plates 25.

[0088] Exemplarily, the present invention also includes that electric heating wires are installed in the first preheating plate 24 and the second preheating plate 25, and a press-delay switch is installed on the side of the first preheating plate 24 close to the second cam 17, and the press-delay switch is used to connect the electric heating wire to power after being squeezed.

[0089] When in use, after the gas pressure telescopic rod 35 drives several groups of first preheating plates 24 to move to a certain position, the second cam 17 is pressed and contacted with one side of the first preheating plate 24, and the pressing delay switch is opened by the pressing of the second cam 17, so that the heating wires in the first preheating plate 24 and the second preheating plate 25 are energized and heated, thereby preheating the limestone;

[0090] By relying on the press-delay switch, it can be ensured that when the second cam 17 is no longer in squeezing contact with the press-delay switch, the press-delay switch slowly resets, the heating wire can continue to work for a certain period of time, and the heating wire can work stably during the intermittent squeezing of the press-delay switch by the second cam 17; and after the second cam 17 stops working, the press-delay switch resets to automatically turn off the heating wire.

[0091] An active calcium oxide processing preheating treatment process, using the above-mentioned active calcium oxide processing preheating treatment device, comprises the following steps:

[0092] S1. Pre-adjust the working speed of the crushing structure according to the limestone feed amount;

[0093] S2. Adjust the number of preheating structures put into use according to the working speed of the crushing structure;

[0094] S3, putting the limestone into the crushing structure for crushing;

[0095] S4, the crushed limestone is screened by the screening structure and then preheated by the preheating structure;

[0096] S5. After preheating, the limestone is discharged through the discharging structure.

[0097] When the present invention is in use, according to the feed amount of limestone, the drive motor 7 is turned on, the speed of the drive motor 7 is adjusted to a suitable state, the drive motor 7 drives the first output shaft 5 and the second output shaft 6 to rotate synchronously, the second output shaft 6 drives the pneumatic drive structure when it rotates, and the pneumatic drive structure drives the support seat 30 of the first preheating plate 24 located at the top to move up, and when a group of first preheating plates 24 move up, the second preheating plates 25 are driven to move up through the hinge shaft 26, and at the same time, the second preheating plates 25 are unfolded, and when the second preheating plates 25 move up The moving stability of the second preheating plate 25 can be improved by the rolling contact between the ball bearings 28 and the upper surface of the first preheating plate 24 located below. When a group of first preheating plates 24 moves up to a certain position, the steel cable 34 drives the next group of adjacent first preheating plates 24 to move up, thereby driving the air pressure driving structure according to the rotation speed of the second output shaft 6 to drive a suitable number of first preheating plates 24 and second preheating plates 25 to move up, and a suitable number of preheating structures are put into the preheating structure according to the feed amount of limestone, so as to ensure the preheating effect of the screened limestone.

[0098] Put the limestone into the cylinder 1 through the feed port 2. After the limestone enters the cylinder 1, it falls between the first crushing roller 3 and the second crushing roller 4, and is crushed by the first crushing roller 3 and the second crushing roller 4, so as to ensure the subsequent preheating effect;

[0099] The volute 19 at one end of the first output shaft 5 meshes with the gear 18 to drive the driving rod 15 to rotate. When the driving rod 15 rotates, it drives the first cam 16 and several groups of second cams 17 to rotate. When the first cam 16 rotates, it squeezes and contacts with one side of the sieve plate 8, thereby driving the sieve plate 8 to move. When the sieve plate 8 moves, the sliding block 9 slides in the slide groove 10 to improve the movement stability of the sieve plate 8. At the same time, when the sieve plate 8 moves, the first spring 11 is squeezed to store force. With the rotation of the driving rod 15, when the first cam 16 no longer squeezes the sieve plate 8 to move, the sieve plate 8 is reset and moved by the reset effect of the first spring 11, so that the sieve plate 8 reciprocates and vibrates. The crushed limestone enters the top of the sieve plate 8, and the sieve plate 8 is driven to reciprocate and vibrate by the first cam 16 and the first spring 11, so as to screen the limestone. The qualified limestone passes through the sieve plate 8 and enters the guide hopper 12. The screened limestone is transported to the preheating structure by the guide hopper 12, and the preheating structure is used to preheat it.

[0100] After the crushed limestone enters the sieve plate 8, the sieve plate 8 is used to screen the limestone. The qualified limestone passes through the sieve plate 8 and enters the guide funnel 12. The unqualified limestone moves to the opening 21 through the inclined sieve plate 8 and enters the feeding barrel 20 through the opening 21. The limestone entering the feeding barrel 20 is lifted and transported by the spiral elevator 22. At the same time, the unqualified limestone is transported to the feeding port 2 again by the feeding pipe 23, and is crushed twice by the crushing structure to ensure the crushing effect.

[0101] When the qualified limestone passes through the sieve plate 8 and enters the guide hopper 12, it falls on the upper surface of the first preheating plate 24 located at the top, and is squeezed by the rotation of the second cam 17 to move a plurality of groups of first preheating plates 24. When the first preheating plates 24 move, the sliding plates 49 are driven to slide in the grooves 31. When the sliding plates 49 slide, they squeeze the second springs 32 to store force. With the rotation of the driving rod 15, when the second cam 17 no longer squeezes the first preheating plates 24, the first preheating plates 24 are driven to reset and move by the reset effect of the first spring 11. , thereby driving the first preheating plate 24 to reciprocate through the rotation of the second cam 17, and the first preheating plate 24 drives the crushed limestone to move during the reciprocating movement. After the limestone moves to a certain position, it falls onto the top of the second preheating plate 25 through the connecting port 29, and the reciprocating movement of the second preheating plate 25 drives the limestone to move, and the limestone is transported to the upper surface of the next group of first preheating plates 24, thereby relying on several groups of first preheating plates 24 and second preheating plates 25 to preheat and transport the limestone;

[0102] The preheated limestone falls onto the guide plate 44 through the second preheating plate 25, and is transported to the screw feeder 47 by means of the guide plate 44 and the opening 21, and the preheated limestone is transported by means of the screw feeder 47 for subsequent calcination.

[0103] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An active calcium oxide processing preheating treatment device, characterized in that: It comprises a vertically arranged cylinder (1), a crushing structure is arranged on the top of the inner side of the cylinder (1), a feed port (2) is connected to the upper end of the cylinder (1), a screening structure is arranged below the crushing structure, a vertically arranged conveying structure is arranged on the outer side of the cylinder (1), a lower end side of the conveying structure is connected to a side of the screening structure, a plurality of groups of preheating structures are arranged below the screening structure, and the preheating structures are all driven to rise and fall by the crushing structure, and a discharge structure is arranged on a lower end side of the cylinder (1); The preheating structure comprises a first preheating plate (24) and a second preheating plate (25), one end of the first preheating plate (24) and one end of the second preheating plate (25) are hingedly connected via a hinge shaft (26), a connecting port (29) is provided on the upper surface of the first preheating plate (24) on the side close to the hinge shaft (26), a symmetrically arranged support rod (27) is hingedly connected to the end of the second preheating plate (25) away from the hinge shaft (26), a ball bearing (28) is connected to the side of the support rod (27) away from the second preheating plate (25), the first preheating plate (24) and the second preheating plate (25) adjacent to each other are stacked at the lower part of the cylinder (1), the ball bearing (28) is in rolling contact with the upper surface of the first preheating plate (24) located below, and one side of the first preheating plate (24) is in extrusion contact with the second cam (17); The pulverizing structure comprises a first pulverizing roller (3) and a second pulverizing roller (4) mounted on the upper part of the cylinder (1); the first pulverizing roller (3) is coaxially connected to a first output shaft (5); the second pulverizing roller (4) is coaxially connected to a second output shaft (6); one end of the first output shaft (5) and one end of the second output shaft (6) are both connected to a driving motor (7); the two sets of driving motors (7) are fixedly connected to the outer wall of the cylinder (1); Both ends of the first preheating plate (24) are fixedly connected with sliding plates (49), a support seat (30) is provided on the side of the sliding plate (49) away from the first preheating plate (24), a groove (31) is provided on the side of the support seat (30) close to the sliding plate (49), the sliding plate (49) corresponds to the groove (31) and is slidably connected to the groove (31), one end of the sliding plate (49) is fixedly connected to the inner wall of the groove (31) through a second spring (32), and the inner wall of the cylinder (1) is provided with a There are positioning grooves (33) corresponding to the two ends of the support seat (30), and the two ends of the support seat (30) are in sliding contact with the inner wall of the cylinder (1) through the positioning grooves (33). Steel cables (34) are fixedly connected between the upper and lower adjacent support seats (30). A pneumatic drive structure is provided inside the cylinder (1), and the output end of the pneumatic drive structure is fixedly connected to the support seat (30) of the first preheating plate (24) located at the top. The pneumatic drive structure is driven to rise and fall through the second output shaft (6).

2. The active calcium oxide processing preheating treatment device according to claim 1, characterized in that: The screening structure comprises an inclined screen plate (8), the lower parts of both ends of the screen plate (8) are fixedly connected with sliders (9), the inner wall of the cylinder (1) is provided with a slide groove (10) corresponding to the slider (9), the slider (9) is located in the slide groove (10) and is slidably connected to the slide groove (10), one side of the slider (9) is fixedly connected to the inner wall of the slide groove (10) through a first spring (11), and a material guide funnel (12) is provided below the screen plate (8), and the material guide funnel (12) is fixedly connected to the inner wall of the cylinder (1); The outer side of the cylinder (1) is provided with a vertically arranged slot (13), the slot (13) is communicated with the inside of the cylinder (1), the outer side of the slot (13) is fixedly connected with a vertically arranged mounting shell (14), the inside of the mounting shell (14) is rotatably provided with a vertically arranged driving rod (15), the driving rod (15) is fixedly connected with a first cam (16) and a plurality of groups of second cams (17), the first cam (16) is located above the plurality of groups of second cams (17), the first cam (16) is in compression contact with one side of the sieve plate (8), the upper end of the driving rod (15) passes through the mounting shell (14) and is rotatably connected with the mounting shell (14), the upper end of the driving rod (15) is fixedly connected with a gear (18), the end of the first output shaft (5) away from the driving motor (7) passes through the cylinder (1) and is fixedly connected with a volute (19), the volute (19) is meshed with the gear (18) for transmission.

3. The active calcium oxide processing preheating treatment device according to claim 2, characterized in that: The conveying structure comprises a feeding barrel (20) fixedly connected to the outside of a barrel (1); an opening (21) is provided at the upper portion of the barrel (1); the lower end of the sieve plate (8) corresponds to the opening (21); the opening (21) is communicated with the lower portion of the feeding barrel (20); a vertically arranged spiral elevator (22) is fixedly connected inside the feeding barrel (20); the upper end of the feeding barrel (20) is communicated with an inclined feeding pipe (23); the lower end of the feeding pipe (23) is communicated with a feeding port (2).

4. The active calcium oxide processing preheating treatment device according to claim 3, characterized in that: The pneumatic drive structure comprises two groups of pneumatic telescopic rods (35) symmetrically mounted at the lower end of the cylinder (1), and the output ends of the pneumatic telescopic rods (35) are fixedly connected to the support seat (30) of the first preheating plate (24) located at the top; The end of the second output shaft (6) away from the drive motor (7) passes through the cylinder (1) and is fixedly connected to the extrusion cam (36). A piston cylinder (48) is provided on the outside of the cylinder (1). A piston plate (37) is sealingly and slidably connected inside the piston cylinder (48). The piston plate (37) is fixedly connected to the inner wall of the piston cylinder (48) via a return spring (50). A piston rod (38) is fixedly connected to the side of the piston plate (37) close to the extrusion cam (36). One side of the piston rod (38) is The end of the piston cylinder (48) is in compression contact with the extrusion cam (36); one side of the piston cylinder (48) is connected with a one-way air inlet valve (39) and a one-way air outlet valve (40); the one-way air outlet valve (40) is connected with the pneumatic telescopic rod (35) through a pipeline; the lower ends of the two groups of pneumatic telescopic rods (35) are both connected with an air inlet joint (41); the one-way air outlet valve (40) is respectively connected with the air inlet joints at the lower ends of the two groups of pneumatic telescopic rods (35) through branch pipes; and the piston cylinder (48) is connected with a damping exhaust pipe (42).

5. The active calcium oxide processing preheating treatment device according to claim 4, characterized in that: The discharge structure comprises a discharge port (43) provided at one side of the bottom of the cylinder (1); an inclined guide plate (44) is provided at the bottom of the cylinder (1); the guide plate (44) corresponds to the discharge port (43); the lower part of the guide plate (44) is hinged to the inner wall of the cylinder (1) via a spring shaft (45); the discharge port (43) is connected to a discharge pipe (46); one end of the discharge pipe (46) is connected to a horizontally arranged screw feeder (47).

6. The active calcium oxide processing preheating treatment device according to claim 3, characterized in that: The first preheating plate (24) and the second preheating plate (25) are both installed with electric heating wires, and a push-delay switch is installed on one side of the first preheating plate (24) close to the cam, and the push-delay switch is used to connect the electric heating wire to power after being squeezed.

7. An active calcium oxide processing preheating treatment process, using an active calcium oxide processing preheating treatment device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Pre-adjust the working speed of the crushing structure according to the limestone feed amount; S2. Adjust the number of preheating structures put into use according to the working speed of the crushing structure; S3, putting the limestone into the crushing structure for crushing; S4, the crushed limestone is screened by the screening structure and then preheated by the preheating structure; S5. After preheating, the limestone is discharged through the discharging structure.

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