A cement clinker production batching device and method

Abstract

The application relates to the technical field of cement clinker production, and discloses a batching device and method for cement clinker production, wherein the batching device for cement clinker production comprises a mixing box, a stacking hopper, a screening plate and a stirring rod are sequentially arranged in the mixing box from top to bottom, a material scraping and crushing mechanism is arranged on the upper side of the screening plate, the material scraping and crushing mechanism is in transmission connection with the stirring rod, the screening plate comprises an annular groove, a conical plate is fixedly installed on the annular groove, a plurality of annular holes are formed in the conical plate, the material scraping and crushing mechanism comprises a material scraping assembly and a crushing assembly. Fine materials are screened out through the annular holes, and the caked or large-granular stone blocks are intercepted, the caked or large-granular stone blocks are slid onto the annular groove under the driving of the pushing block, the caked or large-granular stone blocks are crushed into fine materials by the crushing roller, and the pushing plate pushes the caked or large-granular stone blocks to the bottom of the mixing box, so that the caked or large-granular stone blocks intercepted are crushed and then fall back into the mixing box while the conical plate is prevented from being blocked.

Description

Technical Field

[0001] This invention relates to the field of cement clinker production technology, and in particular to a batching device and method for cement clinker production. Background Technology

[0002] Cement clinker is a semi-finished cement product. After cooling and grinding, it can be made into various types of cement. Cement clinker is a semi-finished product obtained by mixing limestone, clay, and iron raw materials as the main raw materials in appropriate proportions to form raw meal, burning it until it is partially or completely melted, and then cooling it.

[0003] In cement clinker production, limestone ore needs to be coarsely crushed, medium-crushed, and finely crushed sequentially before being mixed with clay and iron-containing raw materials in a specific ratio. To avoid dust generation during the crushing process, the limestone is crushed in a water mist environment, which results in the formation of fine particles and the presence of a small amount of large stones. This leads to inconsistent calcination degrees between the agglomerated or large-particle portions and the fine particles during subsequent calcination, thus affecting the quality of the cement clinker. Existing technologies use a screening mechanism in the batching device to remove agglomerated or large-particle stones. However, this technology still has the following drawbacks: during screening, some screen holes become clogged, reducing screening efficiency and requiring regular cleaning. Furthermore, the screened limestone cannot enter the batching device, altering the raw material ratio and resulting in inconsistent cement clinker quality. Summary of the Invention

[0004] In view of the problems of existing technology, such as the screening mechanism being prone to clogging when screening limestone and causing changes in the cement clinker mix ratio, a batching device for cement clinker production is proposed.

[0005] Its purpose is to prevent the screening mechanism from becoming clogged and to re-crush the screened limestone before it enters the mixing tank, thus ensuring the proportion of cement clinker.

[0006] The technical solution of the present invention is a batching device for cement clinker production, including a mixing box. The mixing box is equipped with a stacking hopper, a screening plate, and a stirring rod from top to bottom. A scraping and crushing mechanism is provided on the upper side of the screening plate, and the scraping and crushing mechanism is connected to the stirring rod in a transmission manner.

[0007] The screening plate includes an annular groove fixedly connected to the mixing box. A conical plate is fixedly installed on the annular groove. Multiple discharge grooves are evenly distributed on the lower part of the conical plate. One end of the discharge groove passes through the conical plate and extends to the top of the annular groove. Multiple annular holes are concentrically opened on the conical plate. Multiple discharge holes are evenly spaced on the annular holes. The discharge holes are located above the discharge groove.

[0008] The scraping and crushing mechanism includes a scraping component and a crushing component. The scraping component includes a pushing block disposed in an annular hole. The crushing component includes a motor fixedly installed on the outside of the mixing box. The output end of the motor passes through the mixing box and is connected to a drive ring. The drive ring is rotatably connected to the mixing box. Multiple crushing rollers and multiple pushing plates are evenly distributed on the drive ring. The crushing rollers and pushing plates are all disposed on an annular groove.

[0009] Using the above technical solution, the raw materials of cement clinker are placed on the hopper according to the proportion. They fall through the discharge port of the hopper to the middle of the upper side of the conical plate. The raw materials slide down the slope of the conical plate to the surrounding area. Fine materials fall down through the annular hole to the bottom of the mixing box. Lumps or large stones are intercepted on the annular hole. The motor drives the drive ring to rotate, and the pusher pushes the lumps or large stones on the annular hole to the discharge hole. The lumps or large stones pass through the discharge hole and roll down on the discharge chute to the annular groove. The crushing roller crushes the lumps or large stones on the annular groove. Then the pusher pushes the crushed fine materials to leave the annular groove and fall to the bottom of the mixing box. The stirring rod mixes the raw materials and the crushed fine materials.

[0010] Furthermore, the diameter of the blanking hole is larger than the width of the annular hole.

[0011] Using the above technical solution, the width of the annular hole is smaller than the size of the lumps and large stones, so that the lumps or large stones will be intercepted on the annular hole after passing through it and stop sliding down. When the push block rotates, it pushes the lumps or large stones on the annular hole, causing them to move to the discharge hole and fall down onto the discharge chute.

[0012] Furthermore, the annular groove has a U-shaped cross-section, and multiple arc-shaped holes are equally spaced on the annular groove.

[0013] Using the above technical solution, the discharge chute is inclined, with one end facing the annular trough lower than the other. An arc-shaped hole is located between two adjacent discharge chutes. After the discharge chute discharges lumps or large stones onto the annular trough, the crushing roller crushes these lumps or large stones as it passes over them. Then, a pusher plate pushes the crushed fine material through the arc-shaped hole and downwards. The drive ring drives the rotating frame to rotate, allowing the arc-shaped scraper to rotate and scrape the raw material accumulated on the conical plate, increasing the screening speed. Simultaneously, a discharge plate is located inside the discharge port of the hopper, with multiple through holes spaced evenly. This ensures that the raw material falling from the hopper is evenly distributed onto the conical plate and also clears the discharge port, preventing blockage. The conical shape of the discharge plate ensures that the raw material in the hopper is completely discharged, preventing residue.

[0014] Furthermore, the scraping assembly also includes a rotating frame that is fixedly connected to the drive ring. The rotating frame is evenly distributed with multiple arc-shaped scrapers, which are disposed on a conical plate, and the pushing block is fixedly connected to the arc-shaped scrapers.

[0015] The rotating frame is fixedly connected to the stirring rod, and a tapered material drop plate is fixedly connected to the upper side of the rotating frame. The material drop plate is located inside the hopper and has multiple through holes.

[0016] Using the above technical solution, the drive ring drives the rotating frame to rotate, so that the arc-shaped scraper can rotate and scrape the raw materials accumulated on the conical plate, thereby improving the screening speed of the raw materials. At the same time, the discharge plate is set in the discharge port of the hopper, and multiple through holes are set at equal intervals. On the one hand, the raw materials falling from the hopper are evenly distributed onto the conical plate, and on the other hand, the discharge port is cleared to avoid blockage. The conical setting of the discharge plate can ensure that the raw materials on the hopper are discharged cleanly, avoiding the generation of residues.

[0017] Furthermore, a transmission gear is fixedly connected to the output end of the motor, and a gear ring is fixedly connected to the drive ring, with the transmission gear meshing with the gear ring.

[0018] Using the above technical solution, the motor drives the transmission gear to rotate, and the transmission gear cooperates with the gear ring to drive the drive ring to rotate clockwise (top view). Since the diameter of the gear ring is larger than the diameter of the transmission gear, the motor drives the drive ring to rotate in a force-saving motion, which can save output power and power consumption.

[0019] Furthermore, multiple connecting frames are fixedly connected to the drive ring, the connecting frames are rotatably connected to a crushing roller, and the connecting frames are fixedly connected to a pusher plate.

[0020] Using the above technical solution, the drive ring drives the crushing roller and the pusher plate to rotate synchronously through the connecting frame. The crushing roller and the pusher plate move in the annular groove. A U-shaped gap is provided between the lower part of the crushing roller and the annular groove. The pusher plate slides in contact with the inner wall of the annular groove. When the crushing roller passes through the position with lumps or large stones, it cooperates with the annular groove to crush them into fine materials. Then the pusher plate pushes the fine materials to the arc-shaped hole so that they fall downwards.

[0021] Furthermore, a drive unit is installed on the connecting frame. The drive unit includes a gear set and an arc-shaped rack. The gear set includes a gear one coaxially connected to the crushing roller. A gear two is meshed with one side of the gear one. A gear three is coaxially connected with one side of the gear two. The gear three meshes with the arc-shaped rack for transmission. The arc-shaped rack is connected and fixed to the mixing box.

[0022] Using the above technical solution, the diameter of gear three is larger than that of gear two, and the diameter of gear two is larger than that of gear one. After gear three contacts the arc-shaped rack, it drives the crushing roller to rotate counterclockwise. The rotation speed of the working surface of the crushing roller is the same as the rotation speed of the crushing roller itself following the drive ring. This allows the crushing roller to bite the contacted clumps or large stone particles when it rotates, avoiding the phenomenon of the crushing roller pushing the clumps or large stone particles to move. This allows the clumps or large stone particles to be effectively crushed at the lower end of the crushing roller and the annular groove.

[0023] Furthermore, an arc-shaped baffle is fixedly connected to the side of the connecting frame facing the discharge chute.

[0024] Using the above technical solution, when the crushing roller is about to approach the discharge end of the discharge chute, the arc-shaped baffle moves to the discharge end of the discharge chute first, blocking the discharge chute port. This prevents the discharge chute from continuing to discharge material while the crushing roller is crushing lumps or large stones on the annular groove, thus preventing lumps or large stones from falling between the crushing roller and the pusher plate, causing any missed crushing of lumps or large stones. The remaining structure is the same as in the embodiment.

[0025] Furthermore, the conical plate has multiple inclined grooves evenly spaced on one side of the annular hole, and two crushing blades are fixedly connected to the discharge hole, the crushing blades having an L-shaped structure.

[0026] Using the above technical solution, the inclined groove is designed so that the height of the side of the annular hole facing the center of the conical plate is lower than that of the other side, thereby improving the interception effect of lumps or large stones and preventing the lumps or large stones from detaching from the annular hole due to their own inertia. The two crushing blades are symmetrically arranged on the discharge hole, with the blades facing the center of the discharge hole. When the lumps or large stones are too large to fall normally through the discharge hole, the pushing block can push the lumps or large stones to abut against the crushing blades. The upper part of the crushing blades can block the lumps or large stones. The pushing block and the crushing blades work together to initially crush the lumps or large stones and prevent the discharge hole from becoming blocked.

[0027] Another objective of this invention is to provide a method for using a batching device for cement clinker production. The purpose is to crush lumps or large stones that are intercepted during the screening of cement clinker raw materials and mix them with the raw materials, while avoiding clogging of the screening mechanism itself, thereby improving production efficiency and ensuring production quality.

[0028] To achieve the above objectives, the present invention provides the following technical solution: a method for using a batching device for cement clinker production, comprising the following steps:

[0029] S1. Place the raw materials of cement clinker into the stacking hopper according to the proportion. Discharge the raw materials from the stacking hopper so that they slide down the top of the conical plate. Fine materials fall into the bottom of the mixing box through the annular hole, while lumps or large stones are intercepted on the annular hole.

[0030] S2. The motor drives the drive ring to rotate, pushing the block to move the clumps or large stones to the discharge hole and then onto the discharge chute. The discharge chute then causes the clumps or large stones to slide onto the annular groove.

[0031] S3. The drive ring drives the crushing roller to rotate. The crushing roller cooperates with the annular groove to crush lumps or large stones into fine materials. Then the pusher plate drives the crushed fine materials to the arc-shaped hole and fall to the bottom of the mixing box.

[0032] S4. The stirring rod rotates to mix the raw materials and crushed fines. After mixing, the mixture is discharged through the discharge pipe at the bottom of the mixing box.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. When the raw material slides down the conical plate, the annular holes screen out fine materials and intercept lumps or large stones. The pusher block drives the intercepted lumps or large stones to slide down onto the annular groove. The crushing roller crushes the lumps or large stones into fine materials, and then the pusher plate pushes them to the arc-shaped hole and they fall to the bottom of the mixing box. This process avoids clogging of the conical plate while crushing the intercepted lumps or large stones and returning them to the mixing box, thus preventing changes in the cement clinker mix ratio and ensuring the production quality of cement clinker.

[0035] 2. The inclined groove on one side of the annular hole can improve the interception effect of clumps or large stones, and prevent clumps or large stones from rolling off the current annular hole due to rolling inertia and rolling onto the lower annular hole, so that each annular hole maintains an effective interception effect, thereby helping to improve the screening effect of the conical plate.

[0036] 3. When lumps or large stones are too large to fall through the discharge hole, the push block and the crushing blade work together to clamp and squeeze the lumps or large stones, so that they are initially crushed and can pass through the discharge hole effectively, avoiding blockage. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0038] Figure 2 This is a schematic cross-sectional view of the mixing tank structure of the present invention;

[0039] Figure 3 This is a schematic cross-sectional view of the annular groove and conical plate structure of the present invention;

[0040] Figure 4 This is a top view schematic diagram of the sieve plate structure of the present invention;

[0041] Figure 5 This is a schematic diagram of the scraping assembly, crushing assembly, and stirring rod of the present invention;

[0042] Figure 6 This is a schematic diagram of the scraping assembly structure of the present invention;

[0043] Figure 7 This is a schematic diagram of the pushing block and annular hole structure of the present invention;

[0044] Figure 8 This is a schematic diagram of the crushing component structure of the present invention;

[0045] Figure 9 This is a schematic diagram showing the disassembled structure of the drive unit of the present invention;

[0046] Figure 10 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the middle.

[0047] In the picture:

[0048] 1. Mixing bin; 2. Stacking hopper; 3. Screening plate; 301. Annular groove; 302. Conical plate; 303. Discharge chute; 304. Annular hole; 305. Discharge hole; 306. Arc-shaped hole; 307. Inclined chute; 4. Stirring rod; 5. Scraper assembly; 501. Pushing block; 502. Rotating frame; 503. Arc-shaped scraper; 504. Discharge plate; 505. Through hole; 6. Crushing assembly; 601. Motor; 602. Transmission gear; 603. Drive ring; 604. Gear ring; 605. Crushing roller; 606. Pushing plate; 607. Connecting frame; 608. Arc-shaped baffle; 7. Drive unit; 701. Gear one; 702. Gear two; 703. Gear three; 704. Arc-shaped rack; 8. Crushing blade. Detailed Implementation

[0049] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0050] Example 1, referring to Figures 1-9This is the first embodiment of the present invention, which provides a batching device for cement clinker production, including a mixing box 1. A stockpile 2, a screening plate 3, and a stirring rod 4 are installed sequentially from top to bottom inside the mixing box 1. A scraping and crushing mechanism is provided on the upper side of the screening plate 3, and the scraping and crushing mechanism is connected to the stirring rod 4. The screening plate 3 includes an annular groove 301 fixedly connected to the mixing box 1. A conical plate 302 is fixedly installed on the annular groove 301. Multiple discharge troughs 303 are evenly distributed on the lower part of the conical plate 302. One end of each discharge trough 303 extends through the conical plate 302 and extends above the annular groove 301. Multiple annular holes 304 are concentrically formed on the conical plate 302. Multiple discharge holes 305 are evenly spaced on the annular hole 304, and the discharge holes 305 are located above the discharge trough 303; the scraping and crushing mechanism includes a scraping component 5 and a crushing component 6. The scraping component 5 includes a pushing block 501 located in the annular hole 304, and the crushing component 6 includes a motor 601 fixedly installed on the outside of the mixing box 1. The output end of the motor 601 passes into the mixing box 1 and is connected to a drive ring 603. The drive ring 603 is rotatably connected to the mixing box 1. Multiple crushing rollers 605 and multiple pushing plates 606 are evenly distributed on the drive ring 603. The crushing rollers 605 and the pushing plates 606 are all located on the annular groove 301.

[0051] Specifically, the raw materials for cement clinker are placed into the hopper 2 according to the proportions, and fall into the middle of the upper side of the conical plate 302 through the discharge port of the hopper 2. The raw materials slide down the slope of the conical plate 302 to the surrounding area. The fine material falls down through the annular hole 304 to the bottom of the mixing box 1. The lumps or large particles of stone are intercepted on the annular hole 304. The motor 601 drives the drive ring 603 to rotate, and the push block 501 pushes the lumps or large particles of stone on the annular hole 304 to the discharge hole 305. The lumps or large particles of stone pass through the discharge hole 305 and roll down on the discharge chute 303 to the annular trough 301. The crushing roller 605 crushes the lumps or large particles of stone on the annular trough 301. Then the push plate 606 pushes the crushed fine material to leave the annular trough 301 and fall into the bottom of the mixing box 1. The stirring rod 4 stirs and mixes the raw materials and the crushed fine material.

[0052] The bottom of the mixing tank 1 has a funnel-shaped structure, and a switch valve is installed on the discharge pipe at the bottom of the mixing tank 1. The opening and closing state of the discharge pipe can be controlled by the switch valve.

[0053] Reference Figures 3-4 The diameter of the blanking hole 305 is larger than the width of the annular hole 304.

[0054] Specifically, the width of the annular hole 304 is smaller than the size of the lumps and large stones, so that the lumps or large stones will be intercepted on the annular hole 304 after passing through it and stop sliding down. When the push block 501 rotates, it pushes the lumps or large stones on the annular hole 304, causing them to move to the discharge hole 305 and fall down onto the discharge chute 303.

[0055] It is understandable that after the limestone ore is finely crushed, there will still be a small amount of large stones or lumps in the fine material. The width of the annular hole 304 can be used to screen out the conventional raw material after fine crushing, while the large stones or lumps are intercepted on the annular hole 304 and cannot fall off. The size of the discharge hole 305 allows the large stones or lumps to pass through.

[0056] Reference Figures 3-4 The annular groove 301 has a U-shaped cross-section, and multiple arc-shaped holes 306 are equally spaced on the annular groove 301.

[0057] Specifically, the discharge trough 303 is inclined, with one end facing the annular trough 301 being lower than the other end. The arc-shaped hole 306 is located between two adjacent discharge troughs 303. After the discharge trough 303 discharges lumps or large stones onto the annular trough 301, the crushing roller 605 can crush the lumps or large stones when it passes by. Then, the pusher plate 606 pushes the crushed fine material to fall down through the arc-shaped hole 306.

[0058] Reference Figures 5-6 The scraping assembly 5 also includes a rotating frame 502 that is fixedly connected to the drive ring 603. Multiple arc-shaped scrapers 503 are evenly distributed on the rotating frame 502. The arc-shaped scrapers 503 are disposed on the conical plate 302, and the pushing block 501 is fixedly connected to the arc-shaped scrapers 503. The rotating frame 502 is fixedly connected to the stirring rod 4, and a tapered material drop plate 504 is fixedly connected to the upper side of the rotating frame 502. The material drop plate 504 is disposed in the hopper 2, and multiple through holes 505 are opened on the material drop plate 504.

[0059] Specifically, the drive ring 603 drives the rotating frame 502 to rotate, so that the arc-shaped scraper 503 can rotate and scrape the raw materials accumulated on the conical plate 302, thereby increasing the screening speed of the raw materials. At the same time, the discharge plate 504 is located in the discharge port of the hopper 2, and multiple through holes 505 are arranged at equal intervals. On the one hand, the raw materials falling from the hopper 2 are evenly distributed onto the conical plate 302. On the other hand, the discharge port can be cleared to avoid blockage. The conical arrangement of the discharge plate 504 can ensure that the raw materials on the hopper 2 are discharged cleanly, avoiding the generation of residues.

[0060] Reference Figure 8A transmission gear 602 is fixedly connected to the output end of the motor 601, and a gear ring 604 is fixedly connected to the drive ring 603. The transmission gear 602 and the gear ring 604 are meshed together.

[0061] Specifically, the motor 601 drives the transmission gear 602 to rotate, and the transmission gear 602 cooperates with the gear ring 604 to drive the drive ring 603 to rotate clockwise. Figure 8 (From a top-down perspective) Because the diameter of the gear ring 604 is larger than the diameter of the transmission gear 602, the motor 601 drives the drive ring 603 to rotate in a force-saving motion, which can save output power and power consumption.

[0062] The drive ring 603 has multiple support seats at equal intervals on its outer side. The support seats are fixedly connected to the inner wall of the mixing box 1. Three U-shaped limiting rollers are rotatably provided on the support seats. The limiting rollers are in rolling contact with the drive ring 603, so that the axis of the drive ring 603 and the axis of the mixing box 1 are located on the same vertical axis.

[0063] Reference Figure 9 Multiple connecting frames 607 are fixedly connected to the drive ring 603. The connecting frame 607 is rotatably connected to a crushing roller 605 and is fixedly connected to a pusher plate 606.

[0064] Specifically, the drive ring 603 drives the crushing roller 605 and the pusher plate 606 to rotate synchronously through the connecting frame 607. The crushing roller 605 and the pusher plate 606 move in the annular groove 301. A U-shaped gap is provided between the lower part of the crushing roller 605 and the annular groove 301. The pusher plate 606 slides in contact with the inner wall of the annular groove 301. When the crushing roller 605 passes through the position with lumps or large stones, it cooperates with the annular groove 301 to crush them into fine materials. Then the pusher plate 606 pushes the fine materials to the arc-shaped hole 306 so that they fall downwards.

[0065] Reference Figure 9 A drive unit 7 is installed on the connecting frame 607. The drive unit 7 includes a gear set and an arc rack 704. The gear set includes a gear 1 701 coaxially connected to the crushing roller 605. A gear 2 702 is meshed on one side of the gear 1 701. A gear 3 703 is coaxially connected on one side of the gear 2 702. The gear 3 703 meshes with the arc rack 704 for transmission. The arc rack 704 is connected and fixed to the mixing box 1.

[0066] Specifically, the diameter of gear 3 703 is larger than that of gear 2 702, and the diameter of gear 2 702 is larger than that of gear 1 701. After gear 3 703 contacts the arc-shaped rack 704, it drives the crushing roller 605 to rotate counterclockwise. The rotation speed of the working surface of the crushing roller 605 is the same as the rotation speed of the crushing roller 605 itself following the drive ring 603. This allows the crushing roller 605 to bite the contacted clumps or large stone particles when it rotates, which can avoid the phenomenon of the crushing roller 605 pushing the clumps or large stone particles to move. This allows the clumps or large stone particles to be effectively crushed at the lower end of the crushing roller 605 and the annular groove 301.

[0067] In practical work, refer to Figure 4 and Figure 9 The inner wall of the annular groove 301 and the surface of the crushing roller 605 are both provided with anti-slip textures. The anti-slip textures can increase the friction on clumps or large stones, improve the interlocking effect, and prevent clumps or large stones from escaping.

[0068] Example 2, refer to Figure 9 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that an arc-shaped baffle 608 is fixedly connected to the side of the connecting frame 607 facing the discharge trough 303.

[0069] Specifically, when the crushing roller 605 is about to approach the discharge end of the discharge trough 303, the arc-shaped baffle 608 first moves to the discharge end of the discharge trough 303 to block the discharge port of the discharge trough 303. This prevents the discharge trough 303 from continuing to discharge material while the crushing roller 605 is crushing lumps or large stones on the annular groove 301, thereby preventing lumps or large stones from falling between the crushing roller 605 and the pusher plate 606 and causing any missed crushing of lumps or large stones. The remaining structure is the same as that in Embodiment 1.

[0070] Example 3, referring to Figure 3 and Figure 10 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the conical plate 302 is provided with a plurality of inclined grooves 307 at equal intervals on one side of the annular hole 304, and two crushing blades 8 are fixedly connected to the discharge hole 305. The crushing blades 8 have an L-shaped structure.

[0071] Specifically, the inclined groove 307 is designed so that the height of the side of the annular hole 304 facing the center of the conical plate 302 is lower than that of the other side, thereby improving the interception effect on lumps or large stones and preventing the lumps or large stones from detaching from the annular hole 304 due to their own inertia. The two crushing blades 8 are symmetrically arranged on the discharge hole 305, with the blades facing the center of the discharge hole 305. When the lumps or large stones are too large to fall normally through the discharge hole 305, the pushing block 501 can push the lumps or large stones to abut against the crushing blades 8. The upper part of the crushing blades 8 can block the lumps or large stones. The pushing block 501 and the crushing blades 8 can perform preliminary crushing of the lumps or large stones and prevent the discharge hole 305 from becoming blocked.

[0072] The pushing block 501 is inclined on one side facing the crushing blade 8, and the vertical surfaces on both sides of the inclined groove 307 are provided with arc-shaped chamfers, so that the pushing block 501 can drive the clumps or large stone particles on the annular hole 304 to move, preventing the clumps or large stone particles from being pushed and squeezed out of the annular hole 304 and sliding down. The rest of the structure is the same as that of Embodiment 2.

[0073] Based on embodiments 1-3, the working principle of the present invention is as follows:

[0074] After the raw materials for cement clinker are proportioned, they are placed into the stockpile hopper 2. The motor 601 drives the drive ring 603 to rotate, and the rotating frame 502 drives the material drop plate 504 to rotate, so that the raw materials on the stockpile hopper 2 are evenly spread to the top of the conical plate 302 through the through hole 505. The arc-shaped scraper 503 rotates and scrapes the raw materials piled on the conical plate 302. The raw materials slide along the inclined surface on the conical plate 302. Fine materials fall down into the bottom of the mixing box 1 through the annular hole 304, while lumps or large stones are intercepted on the annular hole 304. The pusher block 501 drives the lumps on the annular hole 304 to move. Large lumps or stones are pushed to the discharge hole 305. The lumps or large stones pass through the discharge hole 305 and roll down the discharge chute 303 onto the annular chute 301. When the crushing roller 605 passes the position with lumps or large stones, it works with the annular chute 301 to crush them into fine material. Then the pusher plate 606 pushes the fine material to the arc-shaped hole 306 so that it falls down to the bottom of the mixing box 1. Then the stirring rod 4 rotates to stir and mix the raw materials. After the stirring is completed, the motor 601 is stopped and the switch valve is opened so that the mixed raw materials are discharged through the discharge pipe.

[0075] Example 4, refer to Figures 1-10 The fourth embodiment of the present invention provides a method for using a batching device for cement clinker production, comprising the following steps:

[0076] S1. Place the raw materials of cement clinker into the stacking hopper 2 according to the proportion. The raw materials are discharged from the stacking hopper 2 so that they slide down the top of the conical plate 302. Fine materials fall into the bottom of the mixing box 1 through the annular hole 304. Clumps or large stones are intercepted on the annular hole 304.

[0077] S2. Motor 601 drives drive ring 603 to rotate, push block 501 to move clumps or large stones to the discharge hole 305 and then fall onto discharge chute 303. Discharge chute 303 drives clumps or large stones to slide onto annular groove 301.

[0078] S3. The drive ring 603 drives the crushing roller 605 to rotate. The crushing roller 605 cooperates with the annular groove 301 to crush lumps or large stones into fine materials. Then the pusher plate 606 drives the crushed fine materials to the arc-shaped hole 306 and falls into the bottom of the mixing box 1.

[0079] S4. The stirring rod 4 rotates to stir and mix the raw materials and crushed fine materials. After the stirring is completed, the mixture is discharged through the discharge pipe at the bottom of the mixing box 1.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A batching device for cement clinker production, characterized in that: The mixture includes a mixing box (1), and a stacking hopper (2), a screening plate (3), and a stirring rod (4) are installed in the mixing box (1) from top to bottom. A scraping and crushing mechanism is provided on the upper side of the screening plate (3), and the scraping and crushing mechanism is connected to the stirring rod (4) in a transmission manner. The screening plate (3) includes an annular groove (301) fixedly connected to the mixing box (1). A conical plate (302) is fixedly installed on the annular groove (301). A plurality of discharge troughs (303) are evenly distributed on the lower part of the conical plate (302). One end of the discharge trough (303) passes through the conical plate (302) and extends to the top of the annular groove (301). A plurality of annular holes (304) are concentrically opened on the conical plate (302). A plurality of discharge holes (305) are equally spaced on the annular holes (304). The discharge holes (305) are located above the discharge troughs (303). The scraping and crushing mechanism includes a scraping assembly (5) and a crushing assembly (6). The scraping assembly (5) includes a pusher block (501) disposed in an annular hole (304). The crushing assembly (6) includes a motor (601) fixedly installed on the outside of the mixing box (1). The output end of the motor (601) passes into the mixing box (1) and is fixedly connected to a transmission gear (602). The transmission gear (602) is meshed with a gear ring (604) on its lower side. A drive ring (603) is fixedly connected to the bottom of the gear ring (604). The drive ring (603) is rotatably connected to the mixing box (1). Multiple crushing rollers (605) and multiple pusher plates (606) are evenly distributed on the drive ring (603). The crushing rollers (605) and pusher plates (606) are all disposed on the annular groove (301). The scraping assembly (5) also includes a rotating frame (502) that is fixedly connected to the drive ring (603). Multiple arc-shaped scrapers (503) are evenly distributed on the rotating frame (502). The arc-shaped scrapers (503) are located on the conical plate (302). The pushing block (501) is fixedly connected to the arc-shaped scrapers (503). The rotating frame (502) is fixedly connected to the stirring rod (4). A tapered dropping plate (504) is fixedly connected to the upper side of the rotating frame (502). The dropping plate (504) is located in the hopper (2). Multiple through holes (505) are opened on the dropping plate (504). Multiple connecting frames (607) are fixedly connected to the drive ring (603). The connecting frame (607) is rotatably connected to a crushing roller (605). The connecting frame (607) is fixedly connected to a pusher plate (606). An arc-shaped baffle (608) is fixedly connected to the side of the connecting frame (607) facing the discharge chute (303). Two crushing blades (8) are fixedly connected to the discharge hole (305). The crushing blades (8) have an L-shaped structure.

2. The batching device for cement clinker production according to claim 1, characterized in that: The diameter of the blanking hole (305) is larger than the width of the annular hole (304).

3. The batching device for cement clinker production according to claim 1, characterized in that: The annular groove (301) has a U-shaped cross-section, and multiple arc-shaped holes (306) are equally spaced on the annular groove (301).

4. The batching device for cement clinker production according to claim 1, characterized in that: A drive unit (7) is installed on the connecting frame (607). The drive unit (7) includes a gear set and an arc rack (704). The gear set includes a gear one (701) coaxially connected to the crushing roller (605). A gear two (702) is meshed on one side of the gear one (701). A gear three (703) is coaxially connected on one side of the gear two (702). The gear three (703) meshes with the arc rack (704) for transmission. The arc rack (704) is connected and fixed to the mixing box (1).

5. A method of using a batching device for cement clinker production, which is applied to the batching device for cement clinker production as described in claim 3, characterized in that: Includes the following steps: S1. Place the raw materials of cement clinker into the hopper (2) according to the proportion. Discharge the raw materials from the hopper (2) so that they slide down the top of the conical plate (302) to the bottom. Fine materials fall into the bottom of the mixing box (1) through the annular hole (304). Clumps or large stones are intercepted on the annular hole (304). S2. The motor (601) drives the drive ring (603) to rotate, and pushes the block (501) to move the clumps or large stones to the discharge hole (305) and then onto the discharge chute (303). The discharge chute (303) then causes the clumps or large stones to slide onto the annular groove (301). S3. The drive ring (603) drives the crushing roller (605) to rotate. The crushing roller (605) and the annular groove (301) work together to crush lumps or large stones into fine materials. Then the pusher plate (606) drives the crushed fine materials to move to the arc-shaped hole (306) and fall into the bottom of the mixing box (1). S4. The stirring rod (4) rotates to stir and mix the raw materials and crushed fine materials. After the stirring is completed, the mixture is discharged through the bottom discharge pipe of the mixing box (1).

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