Batching device and method for improving burnability of cement raw material

Abstract

The invention relates to the technical field of preparation of cement raw materials, in particular to a batching device and method for improving burnability of cement raw materials, a crushing assembly is composed of a pair of crushing rollers, the crushing rollers are driven by a driving shaft driven by a motor, and multiple sets of teeth distributed in a circumferential array mode are arranged on the arc outer walls of the crushing rollers; the crushing device has the beneficial effects that the crushing rollers which are connected in a meshed mode are additionally arranged in an existing premixing box, the purpose of further crushing is achieved through meshing of tooth grooves and the teeth of the crushing rollers, meanwhile, the purpose of transportation is achieved through rotation of the tooth grooves of the crushing rollers, the crushing effect is good, and the crushing effect is good. Crushed raw materials are conveyed into the blanking inner cavity to be crushed and mixed circularly in a reciprocating manner, repeated mixing and crushing at a single position are avoided, and the batching barrel capable of weighing and facilitating feeding is matched, so that the treatment efficiency and quality of the cement raw materials are greatly improved, the performance and efficiency of the raw materials in the batching process are synchronously improved from three aspects, and the production cost is reduced. Further, the burnability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cement raw meal preparation, in particular to a batching device and method for improving the burnability of cement raw meal. Background Art

[0002] In the process of preparing cement, most of its raw materials are limestone and coal powder, so the raw materials of raw materials are mostly in block or large particles after collection. Therefore, in the process of preparing cement, the raw materials need to be screened, put into the ball mill for grinding after screening, and then put into the premixing box for sufficient mixing. Then, use the material transmission device and multi-stage preheating pipeline to enter the rotary kiln for high-temperature combustion of raw materials to form clinker.

[0003] During the combustion process of cement raw meal, the factors that affect the burnability of raw meal are: 1. The particle size of raw meal raw materials. The finer the raw materials are ground, the better the burnability is. 2. The mixing degree of raw meal. The more fully mixed, the better the burnability is. 3. The proportion of raw meal. Different raw meal formulas and proportions have different burnability.

[0004] In the prior art, during the raw material processing, only a single ball mill is used to grind the raw materials, which results in the presence of many small particles in the raw materials. In addition, during the raw material batching process, there are many types of raw materials, and the batching process requires weighing, transportation, and efficiency verification one by one. In addition, granular and powdered raw materials are prone to agglomeration, resulting in poor mixing by simple stirring. Summary of the invention

[0005] The object of the present invention is to provide a batching device and method for improving the burnability of cement raw meal, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A batching device for improving the burnability of cement raw materials, the batching device comprises a premixing box, a stirring column driven by a motor is arranged at the lower end of the inner cavity of the premixing box, a feeding end cover is arranged at the upper end of the premixing box, a feeding platform connected to the inner cavity of the premixing box is arranged on the feeding end cover, and multiple groups of batching barrels with weighing devices are arranged on the outer side of the feeding platform.

[0008] Side plates and lifting frames for lifting and plugging are arranged on both sides of the inner cavity of the premixing box. The side plates are located on the outside of the stirring column. A blanking cavity is arranged in the cavity between the other side of the side plate and the inner wall of the premixing box. A lower reflux groove connecting the middle inner cavity of the premixing box and the blanking inner cavity is arranged on the side plate. Multiple groups of crushing components are arranged on the lifting frame. The crushing components are composed of a pair of crushing rollers. The crushing rollers are driven by a driving shaft driven by a motor. Multiple groups of teeth distributed in a circular array are arranged on the arc outer wall of the crushing roller. Adjacent crushing rollers are connected by teeth meshing, and a pair of crushing rollers rotate and mesh toward one side of the stirring column.

[0009] Preferably, the side panels and the front and rear side walls of the lifting frame are in contact with the inner wall of the premix box, the lower end of the lifting frame is provided with a lower slot, the lower slot is slidably plugged into the side panel, the upper end of the side panel is provided with a telescopic rod, the upper end of the telescopic rod is fixed to the upper inner wall of the lower slot.

[0010] Preferably, a plurality of diversion frames are provided at the upper end of the lifting frame, the crushing assembly is installed in the diversion frame, the front and rear side walls of the crushing roller rotate to fit the inner wall of the diversion frame, and the gap between the arc outer wall of the crushing roller and the upper and lower inner walls of the diversion frame is smaller than the height of the teeth.

[0011] Preferably, a side frame is provided on the outer wall of the lifting frame on one side of the blanking inner cavity, the side frame is flush with the driving shaft, and a brush is provided on the side frame, and the brush is pressed on the arc outer wall of the crushing roller.

[0012] Preferably, a loading platform is provided at the upper end of the feed end cover, and the upper end of the loading platform is sealed by a sealing cover. Material troughs corresponding to multiple groups of dosing barrels are provided on the side walls of the loading platform. The lower end of the loading platform is connected to the inner cavity of the premixing box through a feed port. An anti-arc overflow plate facing the feed port is telescopically installed in the middle of the lower end surface of the sealing cover, and a gap is left between the anti-arc overflow plate and the inner wall of the loading platform.

[0013] Preferably, the feed end cover is provided with a hinge seat corresponding to the dosing barrel one by one, the inner cavity of the dosing barrel is provided with an inclined inner groove, the side wall of the dosing barrel is provided with an inclined discharge pipe corresponding to the material groove, the inclined discharge pipe is inclined upward, and a handle is provided on the outer wall of the dosing barrel away from the material groove, and a weighing device is provided at the lower end of the dosing barrel, and a rotating rod is provided at the lower end of the weighing device, and the lower end of the rotating rod is rotatably plugged into the hinge seat.

[0014] Preferably, a threaded groove is provided on the side wall of the hinge seat, a threaded pressure block is rotatably installed on the outer thread of the threaded groove, a sliding inner cavity is provided on the inner side of the threaded groove, a plurality of groups of limit grooves are provided on the end face of the rotating rod, a pressure plate is provided between the rotating rod and the threaded pressure block, the side wall of the sliding inner cavity is provided with a side groove for limiting the position of the pressure plate, a side block slidably inserted in the side groove is provided on the side wall of the pressure plate, one end face of the pressure plate is rotatably fitted with the threaded pressure block, and the other end face of the pressure plate is provided with an insertion rod inserted in the limiting groove, the inclined discharge pipe is opposite to the material trough, an inclined material plate cooperating with the inclined discharge pipe is provided on the outer wall of the loading platform, the lower end of the inclined material plate is connected to the material trough, baffles are provided on both sides of the inclined material plate, and a sealing plate facing the upper end of the inclined material plate is provided on the outer wall of the sealing cover.

[0015] Preferably, a lifting groove is provided in the inner cavity at the lower end of the side of the dispensing barrel close to the inclined discharge pipe, and a lifting valve plate extending into the inclined discharge pipe is vertically slidably inserted in the lifting groove, and a limiting plate is provided at one end of the lifting valve plate located in the lifting groove, a spring is pressed at the lower end of the limiting plate, and a pull rope for driving the lifting valve plate to open and close is connected to the lower end of the limiting plate.

[0016] Preferably, a lower cover plate for blocking the lifting groove is provided at the lower end of the dispensing barrel, a through hole is provided on the dispensing barrel on the side of the handle, a wire groove is provided on the upper end face of the lower cover plate and a wire groove is provided which passes through horizontally, guide wheels facing the lifting groove and the through hole are provided at both ends of the wire groove respectively, the pull rope extends smoothly along the guide wheel to the upper end of the through hole, and a pull ring is provided at the end of the pull rope.

[0017] A method for improving the burnability of cement raw meal according to the batching device, the method comprising the following steps:

[0018] S1: Add various cement raw materials into the batching barrel respectively, weigh and proportion them quantitatively through a weighing device, and then add the quantitatively proportioned raw materials into the premixing box through a loading platform;

[0019] S2: The added raw material is stirred and mixed by the stirring column. During the stirring process, the crushing assembly is synchronously started to make the crushing rollers rotate relatively. Since the crushing rollers are provided with teeth and tooth grooves, the stirred raw material enters the tooth grooves and is crushed by the meshing of the crushing rollers. Through the directional rotation of the crushing rollers, the crushed raw materials are transported to the falling cavity and returned to the lower end of the inner cavity of the premixing box through the lower reflux groove. In this way, the raw material is continuously stirred and crushed to obtain fully mixed cement raw material with suitable particle size.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention adds meshing crushing rollers to the existing premixing box, utilizes the tooth grooves and teeth of the crushing rollers to mesh, so as to achieve the purpose of further crushing, and utilizes the tooth grooves of the crushing rollers to rotate to achieve the purpose of transportation, so that the crushed raw materials are transported to the blanking cavity for reciprocating crushing and mixing, thereby avoiding repeated mixing and crushing at a single position, and with a batching cylinder that can be weighed and convenient for feeding, the processing efficiency and quality of cement raw materials are greatly improved, and the performance and efficiency of the raw materials in the batching process are simultaneously improved from three aspects, thereby achieving improved burnability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the feed end cover structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the dispensing barrel of the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the dispensing barrel of the present invention;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating installation of the dispensing barrel of the present invention;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the crushing assembly of the present invention installed on the lifting frame;

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the lifting frame and the side panels of the present invention;

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the sealing cover of the present invention;

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the threaded pressing block and the pressing plate assembly of the present invention.

[0031] In the figure: 1. premixing box; 2. feed end cover; 3. stirring column; 4. side plate; 5. lower reflux trough; 6. lifting frame; 7. lower slot; 8. telescopic rod; 9. diverter frame; 10. crushing roller; 11. side frame; 12. brush; 13. blanking cavity; 14. feed port; 15. hinge seat; 16. batching barrel; 17. inclined discharge pipe; 18. sealing cover; 19. loading platform; 20. anti-overflow plate; 21. handle; 22. Inclined material plate; 23. Baffle; 24. Sealing plate; 25. Material trough; 26. Inclined inner trough; 27. Pull ring; 28. Weighing device; 29. ​​Turn rod; 30. Threaded groove; 31. Insert rod; 32. Lower cover plate; 33. Lifting valve plate; 34. Guide wheel; 35. Limit plate; 36. Spring; 37. Pull rope; 38. Lifting groove; 39. Limit groove; 40. Threaded pressure block; 41. Pressure plate; 42. Drive shaft. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 9 , the present invention provides a technical solution:

[0034] A batching device for improving the burnability of cement raw materials, the batching device includes a premixing box 1, the lower end of the inner cavity of the premixing box 1 is provided with a stirring column 3 driven by a motor, the upper end of the premixing box 1 is provided with a feed end cover 2, the feed end cover 2 is provided with a loading platform 19 connected to the inner cavity of the premixing box 1, and multiple groups of batching barrels 16 with weighing devices 28 are provided on the outer side of the loading platform 19.

[0035] The raw materials in the premixing box 1 are fully stirred by the stirring column 3, and the purpose of quantitative batching is achieved by the batching cylinder 16 with a weighing device 28.

[0036] Side plates 4 and lifting frames 6 for lifting and plugging are arranged on both sides of the inner cavity of the premixing box 1. The side plates 4 are located on the outside of the stirring column 3. A blanking cavity 13 is arranged in the cavity between the other side of the side plates 4 and the inner wall of the premixing box 1. A lower reflux groove 5 connecting the middle inner cavity of the premixing box 1 and the blanking cavity 13 is arranged on the side plates 4. Multiple groups of crushing components are arranged on the lifting frame 6. The crushing components are composed of a pair of crushing rollers 10. The crushing rollers 10 are driven by a driving shaft 42 driven by a motor. Multiple groups of teeth distributed in a circular array are arranged on the arc outer wall of the crushing rollers 10. Adjacent crushing rollers 10 are connected by tooth meshing. A pair of crushing rollers 10 rotate and mesh toward one side of the stirring column 3.

[0037] By setting a rotating crushing roller 10, the teeth and grooves on the crushing roller 10 are used to collect the raw materials in the mixing process, and the extrusion between the teeth and the teeth and grooves is used to further crush the raw materials, thereby reducing the particle size of the raw materials and improving the flammability. At the same time, the circular rotation of the crushing roller 10 is used to transport the crushed raw materials in the teeth and grooves to the blanking cavity 13 to separate them from the cavity where the stirring column 3 is located. The raw materials that fall into the blanking cavity 13 rotate with the stirring and continuous crushing, and gradually move along the lower reflux groove 5 to the cavity where the stirring column 3 is located. In this way, the raw materials are crushed and stirred in a circulating flow in the premixing box 1, which greatly improves the efficiency of stirring and crushing, avoids repeated mixing and crushing of raw materials at a single position, improves the mixing degree, and further improves the flammability.

[0038] At the same time, by limiting the rotation direction of the crushing roller 10, leakage is avoided, so that the raw material can only pass through the meshing gap between adjacent crushing rollers 10. For the gap between the upper and lower positions of the crushing assembly, the crushing roller 10 rotates toward the inner cavity where the stirring column 3 is located, thereby preventing the raw material from leaking in the gap.

[0039] Embodiment 2: On the basis of Embodiment 1, in order to adapt to different mixed amounts of raw materials, the front and rear side walls of the side panel 4 and the lifting frame 6 are in contact with the inner wall of the premixing box 1, and a lower slot 7 is provided at the lower end of the lifting frame 6. The lower slot 7 is slidably inserted on the side panel 4, and a telescopic rod 8 is provided at the upper end of the side panel 4. The upper end of the telescopic rod 8 is fixed to the upper inner wall of the lower slot 7.

[0040] Through the cooperation of the telescopic rod 8 and the lower slot 7, the purpose of adjusting the height of the lifting frame 6 is achieved, and then the purpose of controlling the height of the crushing component is achieved, so as to adapt to the raw materials of different heights in the inner cavity of the premixing box 1.

[0041] A plurality of diverter frames 9 are arranged at the upper end of the lifting frame 6, and the crushing components are installed in the diverter frames 9. The front and rear side walls of the crushing roller 10 rotate to fit the inner wall of the diverter frame 9. The gap between the arc outer wall of the crushing roller 10 and the upper and lower inner walls of the diverter frame 9 is smaller than the height of the teeth. A side frame 11 is arranged on the outer wall of the lifting frame 6 on one side of the blanking inner cavity 13. The side frame 11 is flush with the driving shaft 42. A brush 12 is arranged on the side frame 11, and the brush 12 is pressed on the arc outer wall of the crushing roller 10.

[0042] The brush 12 is provided to clean the outer wall of the crushing roller 10 during rotation, thereby preventing the raw material from being stuck in the tooth groove. The raw material is scraped out of the tooth groove by the brush 12, and then falls into the falling cavity 13 by gravity, and further mixed in the scraping and falling process.

[0043] Example 3: On the basis of Example 2, in order to avoid reverse overflow of powdered raw materials during the mixing process, a loading platform 19 is provided at the upper end of the feed end cover 2, and the upper end of the loading platform 19 is sealed by a sealing cover 18. Material troughs 25 corresponding to multiple groups of dosing barrels 16 are provided on the side walls of the loading platform 19. The lower end of the loading platform 19 is connected to the inner cavity of the premixing box 1 through the feed port 14, and an anti-arc overflow plate 20 facing the feed port 14 is telescopically installed in the middle of the lower end surface of the sealing cover 18, and a gap is left between the anti-arc overflow plate 20 and the inner wall of the loading platform 19.

[0044] The anti-overflow plate 20 is provided to prevent the powder material from overflowing in the stirring process.

[0045] Embodiment 4: On the basis of Embodiment 3, in order to realize convenient and fast quantitative batching and feeding, a hinge seat 15 corresponding to the batching barrel 16 is arranged on the feed end cover 2, the inner cavity of the batching barrel 16 is provided with an inclined inner groove 26, and the side wall of the batching barrel 16 is provided with an inclined discharge pipe 17 corresponding to the material groove 25, the inclined discharge pipe 17 is inclined upward, and a handle 21 is arranged on the outer wall of the batching barrel 16 away from the material groove 25, and a weighing device 28 is arranged at the lower end of the batching barrel 16, and a rotating rod 29 is arranged at the lower end of the weighing device 28, and the lower end of the rotating rod 29 is rotatably plugged into the hinge seat 15.

[0046] The hinge seat 15 is provided to realize the rotational installation of the batching barrel 16 , and the handle 21 is used to realize the tilting of the batching barrel 16 , so that the weighed raw materials are conveniently transported to the loading platform 19 along the inclined inner groove 26 and the inclined discharge pipe 17 .

[0047] A thread groove 30 is provided on the side wall of the hinge seat 15, a thread pressing block 40 is rotatably installed on the outer thread of the thread groove 30, a sliding inner cavity is provided on the inner side of the thread groove 30, a plurality of groups of limit grooves 39 are provided on the end surface of the rotating rod 29, a pressing plate 41 is provided between the rotating rod 29 and the thread pressing block 40, a side groove for limiting the position of the pressing plate 41 is provided on the side wall of the sliding inner cavity, a side block slidably inserted in the side groove is provided on the side wall of the pressing plate 41, and a side of the pressing plate 41 is provided. The side end face is rotated to fit the threaded pressure block 40, and the other side end face of the pressure plate 41 is provided with an insertion rod 31 inserted in the limiting groove 39, the inclined discharge pipe 17 is opposite to the material trough 25, and the outer wall of the loading platform 19 is provided with an inclined material plate 22 that cooperates with the inclined discharge pipe 17, the lower end of the inclined material plate 22 is connected to the material trough 25, and baffles 23 are provided on both sides of the inclined material plate 22, and a sealing plate 24 facing the upper end of the inclined material plate 22 is provided on the outer wall of the sealing cover 18.

[0048] The inclined material plate 22 is provided to cooperate with the rotating inclined discharging pipe 17 to form an inclined material discharge pipe, and the sealing plate 24 and the baffle 23 are used to block the raw materials in the falling process to prevent the raw materials from raising dust.

[0049] Embodiment 5: On the basis of Embodiment 4, in order to conveniently control the opening and closing of the inclined discharge pipe 17, a lifting groove 38 is provided in the inner cavity at the lower end of the dispensing barrel 16 close to the inclined discharge pipe 17, and a lifting valve plate 33 extending to the inclined discharge pipe 17 is vertically slidably inserted in the lifting groove 38, and a limiting plate 35 is provided at one end of the lifting valve plate 33 located in the lifting groove 38, and a spring 36 is pressed at the lower end of the limiting plate 35, and the lower end of the limiting plate 35 is connected to a pull rope 37 for driving the lifting valve plate 33 to open and close.

[0050] By setting the cooperation of the spring 36 and the lifting groove 38, the elastic installation of the lifting valve plate 33 is realized, and then under the reset elastic force of the spring 36, the lifting valve plate 33 rises and blocks the inclined discharge pipe 17, so as to facilitate the weighing of the raw materials in the batching barrel 16. After weighing, the batching barrel 16 is tilted, and the lifting valve plate 33 is lowered by pulling the pull rope 37, thereby realizing the connection between the inclined discharge pipe 17 and the inclined inner groove 26, thereby achieving the purpose of discharging.

[0051] The lower end of the dispensing barrel 16 is provided with a lower cover plate 32 for blocking the lifting groove 38, and the dispensing barrel 16 is provided with a through hole located on the side of the handle 21. The upper end surface of the lower cover plate 32 is provided with a wire groove that passes horizontally through, and the two ends of the wire groove are respectively provided with guide wheels 34 facing the lifting groove 38 and the through hole. The pull rope 37 extends smoothly along the guide wheel 34 to the upper end of the through hole, and the end of the pull rope 37 is provided with a pull ring 27.

[0052] The guide wheel 34 is provided to realize smooth bending and extension of the pull rope 37 , so that the pull rope 37 extends to one side of the handle 21 , which facilitates the traction adjustment of the pull rope 37 in the tilted state.

[0053] A method for improving the burnability of cement raw meal according to a batching device, the method comprising the following steps:

[0054] S1: Add various cement raw materials into the batching barrel 16 respectively, perform quantitative weighing and proportioning through the weighing device 28, and then use the loading platform 19 to add the quantitatively proportioned raw materials into the premixing box 1;

[0055] S2: The added raw material is stirred and mixed by the stirring column 3, and the crushing component is synchronously started during the stirring process, so that the crushing roller 10 rotates relatively. Since the crushing roller 10 is provided with teeth and tooth grooves, the stirred raw material enters the tooth grooves and is crushed by the meshing of the crushing roller 10. The crushed raw material is transported to the falling cavity 13 through the directional rotation of the crushing roller 10, and returns to the lower end of the inner cavity of the premixing box 1 through the lower reflux groove 5. In this way, the raw material is continuously stirred and crushed to obtain a fully mixed cement raw material with a suitable particle size.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A batching device for improving the burnability of cement raw materials, the batching device comprising a premixing box (1), the lower end of the inner cavity of the premixing box (1) is provided with a stirring column (3) driven by a motor, the upper end of the premixing box (1) is provided with a feed end cover (2), the feed end cover (2) is provided with a loading platform (19) connected to the inner cavity of the premixing box (1), and the outer side of the loading platform (19) is provided with a plurality of batching barrels (16) with weighing devices (28), characterized in that: Side plates (4) and lifting frames (6) for lifting and plugging are arranged on both sides of the inner cavity of the premixing box (1); the side plates (4) are located on the outer side of the stirring column (3); a blanking cavity (13) is arranged in the cavity between the other side of the side plates (4) and the inner wall of the premixing box (1); a lower reflux groove (5) connecting the middle inner cavity of the premixing box (1) and the blanking cavity (13) is arranged on the side plates (4); a plurality of groups of crushing components are arranged on the lifting frames (6); the crushing components are composed of a pair of crushing rollers (10); the crushing rollers (10) are driven by a driving shaft (42) driven by a motor; a plurality of groups of teeth distributed in a circumferential array are arranged on the arc outer wall of the crushing rollers (10); adjacent crushing rollers (10) are connected by teeth meshing; the pair of crushing rollers (10) rotate and mesh toward one side of the stirring column (3).

2. A batching device for improving the burnability of cement raw meal according to claim 1, characterized in that: The front and rear side walls of the side plate (4) and the lifting frame (6) are both in contact with the inner wall of the premix box (1); a lower slot (7) is provided at the lower end of the lifting frame (6); the lower slot (7) is slidably plugged into the side plate (4); a telescopic rod (8) is provided at the upper end of the side plate (4); the upper end of the telescopic rod (8) is fixed to the inner wall of the upper end of the lower slot (7).

3. A batching device for improving the burnability of cement raw meal according to claim 2, characterized in that: The upper end of the lifting frame (6) is provided with a plurality of groups of diverter frames (9), the crushing components are installed in the diverter frames (9), the front and rear side walls of the crushing roller (10) rotate to fit the inner wall of the diverter frame (9), and the gap between the arc outer wall of the crushing roller (10) and the upper and lower inner walls of the diverter frame (9) is smaller than the height of the teeth.

4. A batching device for improving the burnability of cement raw meal according to claim 3, characterized in that: The lifting frame (6) is provided with a side frame (11) on the outer wall of one side of the blanking inner cavity (13); the side frame (11) is flush with the driving shaft (42); a brush (12) is provided on the side frame (11); and the brush (12) is pressed onto the arc outer wall of the crushing roller (10).

5. A batching device for improving the burnability of cement raw meal according to claim 1, characterized in that: A loading platform (19) is provided at the upper end of the feed end cover (2), and the upper end of the loading platform (19) is sealed by a sealing cover (18). A material trough (25) corresponding to the multiple groups of batching barrels (16) is provided on the side wall of the loading platform (19). The lower end of the loading platform (19) is connected to the inner cavity of the premixing box (1) through the feed port (14). An anti-arc overflow plate (20) facing the feed port (14) is telescopically installed in the middle of the lower end surface of the sealing cover (18), and a gap is left between the anti-arc overflow plate (20) and the inner wall of the loading platform (19).

6. A batching device for improving the burnability of cement raw meal according to claim 5, characterized in that: The feed end cover (2) is provided with a hinge seat (15) corresponding to the dispensing barrel (16) one by one, the inner cavity of the dispensing barrel (16) is provided with an inclined inner groove (26), the side wall of the dispensing barrel (16) is provided with an inclined discharge pipe (17) corresponding to the material groove (25), the inclined discharge pipe (17) is inclined upward, and a handle (21) is provided on the outer wall of the dispensing barrel (16) away from the material groove (25), and the lower end of the dispensing barrel (16) is provided with a weighing device (28), and the lower end of the weighing device (28) is provided with a rotating rod (29), and the lower end of the rotating rod (29) is rotatably plugged into the hinge seat (15).

7. A batching device for improving the burnability of cement raw meal according to claim 6, characterized in that: The hinge seat (15) is provided with a thread groove (30) on the side wall, a thread pressing block (40) is rotatably installed on the outer side of the thread groove (30), a sliding inner cavity is provided on the inner side of the thread groove (30), a plurality of groups of limit grooves (39) are provided on the end surface of the rotating rod (29), a pressing plate (41) is provided between the rotating rod (29) and the thread pressing block (40), a side groove for limiting the position of the pressing plate (41) is provided on the side wall of the sliding inner cavity, a side block slidably inserted in the side groove is provided on the side wall of the pressing plate (41), and a side of the pressing plate (41) is provided. The side end face is rotated to fit the threaded pressure block (40), the other side end face of the pressure plate (41) is provided with an insertion rod (31) inserted into the limiting groove (39), the inclined discharge pipe (17) is directly opposite to the material trough (25), the outer wall of the loading platform (19) is provided with an inclined material plate (22) that cooperates with the inclined discharge pipe (17), the lower end of the inclined material plate (22) is connected to the material trough (25), baffles (23) are provided on both sides of the inclined material plate (22), and a sealing plate (24) directly opposite to the upper end of the inclined material plate (22) is provided on the outer wall of the sealing cover (18).

8. A batching device for improving the burnability of cement raw meal according to claim 7, characterized in that: A lifting groove (38) is provided in the inner cavity of the lower end of one side of the dispensing barrel (16) close to the inclined discharge pipe (17), and a lifting valve plate (33) extending into the inclined discharge pipe (17) is vertically slidably inserted in the lifting groove (38), and a limiting plate (35) is provided at one end of the lifting valve plate (33) located in the lifting groove (38), a spring (36) is pressed at the lower end of the limiting plate (35), and a pull rope (37) for driving the lifting valve plate (33) to open and close is connected to the lower end of the limiting plate (35) 9. A batching device for improving the burnability of cement raw meal according to claim 8, characterized in that: The lower end of the dispensing barrel (16) is provided with a lower cover plate (32) for blocking the lifting groove (38); the dispensing barrel (16) is provided with a through hole located on one side of the handle (21); the upper end surface of the lower cover plate (32) is provided with a wire groove that runs transversely therethrough; guide wheels (34) facing the lifting groove (38) and the through hole are respectively provided at both ends of the wire groove; a pull rope (37) smoothly extends along the guide wheel (34) to the upper end of the through hole; a pull ring (27) is provided at the end of the pull rope (37).

10. A method for improving the burnability of cement raw meal according to the batching device of any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: Adding raw materials for preparing various cements into a batching barrel (16) respectively, performing quantitative weighing and proportioning by a weighing device (28), and then adding the quantitatively proportioned raw materials into a premixing box (1) by using a loading platform (19); S2: The added raw material is stirred and mixed by the stirring column (3), and the crushing component is synchronously started during the stirring process, so that the crushing roller (10) rotates relatively. Since the crushing roller (10) is provided with teeth and tooth grooves, the stirred raw material enters the tooth grooves and is crushed by the meshing of the crushing roller (10). The crushed raw material is transported to the falling material cavity (13) through the directional rotation of the crushing roller (10), and returns to the lower end of the cavity of the premixing box (1) through the lower reflux groove (5). In this way, the raw material is continuously stirred and crushed to obtain a fully mixed cement raw material with a suitable particle size.

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