Batching device and method for cement clinker production

Abstract

The invention relates to the technical field of cement clinker production, and discloses a batching device and method.The batching device for cement clinker production comprises a mixing box, a stacking hopper, a screening plate and a stirring rod are sequentially installed in the mixing box from top to bottom, and a scraping and crushing mechanism is arranged on the upper side of the screening plate; the scraping and crushing mechanism is in transmission connection with the stirring rod, the screening plate comprises an annular groove, a conical plate is fixedly mounted on the annular groove, a plurality of annular holes are formed in the conical plate, and the scraping and crushing mechanism comprises a scraping assembly and a crushing assembly. Fine materials are screened out through the annular holes, caked or large-particle stones are intercepted, the pushing blocks drive the caked or large-particle stones to slide onto the annular grooves, the caked or large-particle stones are crushed into fine materials through the crushing rollers, and then the fine materials are pushed to the bottom of the material mixing box through the material pushing plate. And blocked agglomerated or large-particle stones are crushed and fall back into the mixing box while the conical plate is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of cement clinker production, and in particular to a batching device and method for cement clinker production. Background Art

[0002] Cement clinker is a semi-finished product of cement. 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, burning them until they are partially or completely melted, and then cooling them.

[0003] When limestone is used in the production of cement clinker, the limestone ore obtained by mining needs to be coarsely crushed, medium crushed and finely crushed in sequence, and then mixed with clay and iron raw materials in a certain ratio. In order to avoid dust during the crushing process, the limestone needs to be crushed in a water mist environment, so there will be a phenomenon of fine material agglomeration, and there will still be a small amount of large-grained stones, resulting in the burning degree of the agglomerated or large-grained stone part being different from that of the fine material part during subsequent calcination, thereby affecting the production quality of cement clinker. In the prior art, agglomerates or large-grained stones can be screened out by adding a screening mechanism to the batching device, but the above technology still has the following defects: during the screening work, some of the sieve holes of the screening mechanism will be blocked, resulting in reduced screening efficiency and the need for regular cleaning. At the same time, the screened limestone material cannot enter the batching device, causing the raw material ratio in the batching device to change, resulting in different production quality of cement clinker. Summary of the invention

[0004] In view of the problem in the prior art that the screening mechanism itself is easily blocked when screening out limestone and causes the cement clinker proportion to change, a batching device for cement clinker production is proposed.

[0005] The purpose is to avoid clogging of the screening mechanism itself and to crush the screened limestone again before entering the mixing box to ensure the proportion of cement clinker.

[0006] The technical solution of the present invention is a batching device for cement clinker production, comprising a mixing box, in which a stacking hopper, a screening plate, and a stirring rod are sequentially installed 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 transmission-connected with the stirring rod;

[0007] The screening plate comprises an annular groove fixedly connected to the mixing box, a conical plate is fixedly mounted on the annular groove, a plurality of discharge grooves are evenly distributed at 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, and a plurality of annular holes are concentrically opened on the conical plate, a plurality of blanking circular holes are opened at equal intervals on the annular hole, and the blanking circular holes are arranged above the discharge groove;

[0008] The scraper and crushing mechanism includes a scraper component and a crushing component. The scraper component includes a pushing block arranged in an annular hole. The crushing component includes a motor fixedly installed on the outside of a mixing box. The output end of the motor passes through the mixing box and is transmission-connected with a driving ring. The driving ring is rotationally connected to the mixing box. A plurality of crushing rollers and a plurality of push plates are evenly distributed on the driving ring. The crushing rollers and the push plates are both arranged on annular grooves.

[0009] By adopting the above technical scheme, the raw materials of cement clinker are put into the stacking hopper according to the proportion, and fall to the middle part of the upper side of the conical plate through the discharge port of the stacking hopper. The raw materials slide around along the inclined surface of the conical plate, and the fine materials fall downward to the bottom of the mixing box through the annular hole. The lumps or large-grained stones are intercepted on the annular hole. The motor drives the driving ring to rotate, and the pushing block drives the lumps or large-grained stones on the annular hole to the discharge circular hole. The lumps or large-grained stones pass through the discharge circular hole and roll down to the annular groove on the discharge trough. The crushing roller crushes the lumps or large-grained stones on the annular groove, and then the pushing plate pushes the crushed fine materials to make them leave the annular groove and fall to the bottom of the mixing box, and the stirring rod stirs and mixes the raw materials and the crushed fine materials.

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

[0011] By adopting the above technical solution, the width of the annular hole is smaller than the size of the agglomerates and large-grained stones, so that the agglomerates or large-grained stones will be intercepted on the annular hole after passing through it and stop sliding downward. When the pushing block rotates, it pushes the agglomerates or large-grained stones on the annular hole, so that they move to the dropping circular hole and then fall downward onto the discharge chute.

[0012] Furthermore, the cross section of the annular groove is a U-shaped structure, and a plurality of arc-shaped holes are formed on the annular groove at equal intervals.

[0013] With the above technical solution, the discharge trough is inclined, with one end of the annular groove lower than the other end, and the arc hole is set between two adjacent discharge troughs. After the discharge trough discharges the agglomerates or large-grained stones to the annular groove, the crushing roller can crush the agglomerates or large-grained stones when passing through, and then the push plate pushes the crushed fine materials to fall downward through the arc hole. The driving ring drives the rotating frame to rotate, so that the arc scraper can rotate and scrape the raw materials accumulated on the conical plate to increase the screening speed of the raw materials. At the same time, the blanking plate is set in the blanking port of the stacking hopper, and multiple through holes are set at equal intervals. On the one hand, the raw materials falling from the stacking hopper are evenly distributed on the conical plate, and on the other hand, the blanking port can be dredged to avoid blockage of the blanking port. The conical setting of the blanking plate can make the raw materials on the stacking hopper be discharged cleanly to avoid residue.

[0014] Furthermore, the scraper assembly also includes a rotating frame connected and fixed to the driving ring, a plurality of arc-shaped scrapers are evenly distributed on the rotating frame, the arc-shaped scrapers are arranged on the conical plate, and the pushing block is connected and fixed to the arc-shaped scrapers;

[0015] The rotating frame is connected and fixed to the stirring rod, and a blanking plate with a conical structure is fixedly connected to the upper side of the rotating frame. The blanking plate is arranged in the stacking hopper, and a plurality of through holes are opened on the blanking plate.

[0016] By adopting the above technical solution, the driving ring drives the rotating frame to rotate, so that the arc 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 blanking plate is arranged in the blanking port of the stacking hopper, and multiple through holes are arranged at equal intervals. On the one hand, the raw materials dropped from the stacking hopper are evenly distributed on the conical plate, and on the other hand, the blanking port can be unblocked to avoid blockage of the blanking port. The conical setting of the blanking plate can make the raw materials on the stacking hopper be discharged cleanly to avoid residue.

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

[0018] By adopting the above technical solution, the motor drives the transmission gear to rotate, and the transmission gear and the gear ring cooperate to drive the drive ring to rotate clockwise (from a top view). Since the diameter of the gear ring is larger than the diameter of the transmission gear, the rotation of the drive ring driven by the motor is a labor-saving movement, which can save output power and power consumption.

[0019] Furthermore, a plurality of connecting frames are fixedly connected to the driving ring, the connecting frame is rotatably connected to a crushing roller, and the connecting frame is fixedly connected to a pushing plate.

[0020] By adopting the above technical scheme, the driving ring drives the crushing roller and the push plate to rotate synchronously through the connecting frame, and the crushing roller and the push plate move in the annular groove. A U-shaped gap is provided between the lower part of the crushing roller and the annular groove, and the push plate is in sliding contact with the inner wall of the annular groove. When the crushing roller passes through a position with agglomerates or large-grained stones, it cooperates with the annular groove to crush them into fine materials, and then the push plate pushes the fine materials to the arc hole to make them fall downward.

[0021] Furthermore, a driving unit is installed on the connecting frame, and the driving unit includes a gear set and an arc-shaped rack. The gear set includes a gear 1 coaxially connected to the crushing roller, one side of the gear 1 is meshedly connected to a gear 2, one side of the gear 2 is coaxially connected to a gear 3, the gear 3 is meshed with the arc-shaped rack for transmission, and the arc-shaped rack is connected and fixed to the mixing box.

[0022] By adopting 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 driving ring, so that when the crushing roller itself rotates, it can bite the contacted lumps or large-grained stones, and the phenomenon that the crushing roller pushes the lumps or large-grained stones to move can be avoided, so that the lumps or large-grained stones can 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 one side of the connecting frame facing the discharge chute.

[0024] With the above technical solution, when the crushing roller is about to approach the discharge end of the discharge trough, the arc-shaped baffle first moves to the discharge end of the discharge trough to block the discharge trough port, thereby preventing the discharge trough from continuing to discharge when the crushing roller is crushing the agglomerates or large-grained stones on the annular groove, thereby preventing the agglomerates or large-grained stones from falling between the crushing roller and the push plate, resulting in the omission of crushing the agglomerates or large-grained stones. The remaining structure is the same as that of the embodiment.

[0025] Furthermore, the conical plate is provided with a plurality of inclined grooves at equal intervals on one side of the annular hole, and two crushing knives are fixedly connected to the blanking circular hole, and the crushing knives are in an L-shaped structure.

[0026] By adopting the above technical scheme, the setting of the inclined groove makes the height of one side of the annular hole facing the center of the conical plate lower than the other side, thereby improving the interception effect of lumps or large-grained stones and preventing the lumps or large-grained stones from escaping from the annular hole due to their own inertia. The two crushing knives are symmetrically arranged on the circular hole for dropping materials, and the blades are facing the center of the circular hole for dropping materials. When the lumps or large-grained stones are too large to fall normally through the circular hole for dropping materials, the pushing block can push the lumps or large-grained stones to abut against the crushing knives, and the upper part of the crushing knives can block the lumps or large-grained stones. The pushing block and the crushing knives can cooperate to perform preliminary crushing of the lumps or large-grained stones and avoid blockage of the circular hole for dropping materials.

[0027] Another object of the present invention is to provide a method for using a batching device for cement clinker production, the purpose of which is to crush the lumps or large-particle stones intercepted by screening the cement clinker raw materials and mix them with the raw materials, while avoiding blockage of the screening mechanism itself, improving production efficiency and ensuring production quality.

[0028] To achieve the above object, 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. Put the raw materials of cement clinker into the stacking hopper according to the proportion. The stacking hopper discharges the raw materials so that they slide down along the top of the conical plate. Fine materials fall into the bottom of the mixing box through the annular hole, and lumps or large-grained stones are intercepted on the annular hole.

[0030] S2, the motor drives the driving ring to rotate, the push block drives the agglomerates or large-grained stones to move to the round hole and then fall to the discharge chute, and the discharge chute drives the agglomerates or large-grained stones to slide to the annular groove;

[0031] S3, the driving ring drives the crushing roller to rotate, and the crushing roller cooperates with the annular groove to crush the agglomerates or large-grained stones into fine materials, and then the push plate drives the crushed fine materials to move to the arc hole and fall to the bottom of the mixing box;

[0032] S4. The stirring rod rotates to stir and mix the raw materials and the crushed fine materials, and after the stirring is completed, the materials are 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 materials slide on the conical plate, the annular holes screen out the fine materials and intercept the lumps or large-grained stones. The pushing block drives the intercepted lumps or large-grained stones to slide onto the annular groove. The crushing roller crushes the lumps or large-grained stones into fine materials, and then the pushing plate pushes them to the arc hole and drops them to the bottom of the mixing box, thereby avoiding the blockage of the conical plate and crushing the intercepted lumps or large-grained stones and then falling them back into the mixing box, avoiding the change of the proportion of cement clinker and ensuring the production quality of cement clinker.

[0035] 2. The inclined groove set on one side of the annular hole can improve the interception effect of agglomerates or large-grained stones, and prevent agglomerates or large-grained stones from escaping from the current annular hole and rolling onto the lower annular hole due to rolling inertia, so that each annular hole maintains an effective interception effect, which helps to improve the screening effect of the conical plate.

[0036] 3. When the lumps or large-grained stones are too large to fall through the circular hole, the push block and the crushing knife can clamp and squeeze the lumps or large-grained stones to crush them initially and enable them to pass through the circular hole effectively to avoid blockage. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

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

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

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

[0045] Fig. 9 It is a schematic diagram of the disassembly of the drive unit structure of the present invention;

[0046] Fig.10 For the present invention Figure 7 A schematic diagram of the enlarged structure in the middle.

[0047] In the figure:

[0048] 1. Mixing box; 2. Stacking hopper; 3. Screening plate; 301. Annular groove; 302. Conical plate; 303. Discharge trough; 304. Annular hole; 305. Round hole for blanking; 306. Arc hole; 307. Inclined trough; 4. Stirring rod; 5. Scraping assembly; 501. Pushing block; 502. Rotating frame; 503. Arc scraper; 504. Blanking 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 baffle; 7. Driving unit; 701. Gear 1; 702. Gear 2; 703. Gear 3; 704. Arc rack; 8. Crushing knife. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0050] Example 1, reference Figure 1-Figure 9, which is the first embodiment of the present invention, provides a batching device for cement clinker production, including a mixing box 1, in which a stacking hopper 2, a screening plate 3, and a stirring rod 4 are installed from top to bottom in sequence, and a scraping and crushing mechanism is provided on the upper side of the screening plate 3, and the scraping and crushing mechanism is transmission-connected with 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, and a plurality of discharge grooves 303 are evenly distributed on the lower part of the conical plate 302, one end of the discharge groove 303 passes through the conical plate 302 and extends to the top of the annular groove 301, and a plurality of annular holes 304 are concentrically opened on the conical plate 302 , a plurality of circular holes 305 for dropping materials are opened at equal intervals on the annular hole 304, and the circular holes 305 for dropping materials are arranged above the discharge groove 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 arranged in the annular hole 304, and the crushing component 6 includes a motor 601 fixedly installed on the outside of the mixing box 1, and the output end of the motor 601 passes through the mixing box 1 and is transmission-connected with a driving ring 603, and the driving ring 603 is rotationally connected to the mixing box 1, and a plurality of crushing rollers 605 and a plurality of pushing plates 606 are evenly distributed on the driving ring 603, and the crushing rollers 605 and the pushing plates 606 are all arranged on the annular groove 301.

[0051] Specifically, the raw materials of cement clinker are put into the stacking hopper 2 according to the proportion, and fall to the middle part of the upper side of the conical plate 302 through the discharge port of the stacking hopper 2. The raw materials slide around along the inclined surface of the conical plate 302, and the fine materials fall downward to the bottom of the mixing box 1 through the annular hole 304. The lumps or large-grained stones are intercepted on the annular hole 304. The motor 601 drives the driving ring 603 to rotate, and the pushing block 501 drives the lumps or large-grained stones on the annular hole 304 to be pushed to the discharge circular hole 305. The lumps or large-grained stones pass through the discharge circular hole 305 and roll down to the annular groove 301 on the discharge trough 303. The crushing roller 605 crushes the lumps or large-grained stones on the annular groove 301, and then the pushing plate 606 pushes the crushed fine materials to make them leave the annular groove 301 and fall to the bottom of the mixing box 1, and the stirring rod 4 stirs and mixes the raw materials and the crushed fine materials.

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

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

[0054] Specifically, the width of the annular hole 304 is smaller than the size of the agglomerates and large-grained stones, so that the agglomerates or large-grained stones will be intercepted on the annular hole 304 after passing through it and stop sliding downward. When the pushing block 501 rotates, it pushes the agglomerates or large-grained stones on the annular hole 304, causing them to move to the dropping circular hole 305 and then fall downward 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-grained stones or agglomerated stones in the fine material. The width of the annular hole 304 can be used to screen out the conventional raw materials after fine crushing, and the large-grained stones or agglomerated stones are intercepted on the annular hole 304 and cannot fall off. The size of the dropping hole 305 allows the large-grained stones or agglomerated stones to pass through.

[0056] Reference Figure 3-Figure 4 The cross section of the annular groove 301 is U-shaped, and a plurality of arc-shaped holes 306 are formed on the annular groove 301 at equal intervals.

[0057] Specifically, the discharge trough 303 is arranged at an angle, with one end facing the annular groove 301 lower than the other end, and the arc hole 306 is arranged between two adjacent discharge troughs 303. After the discharge trough 303 discharges the lumps or large-grained stones onto the annular groove 301, the crushing roller 605 can crush the lumps or large-grained stones when passing by, and then the push plate 606 pushes the crushed fine material to make it fall downward through the arc hole 306.

[0058] Reference Figure 5-Figure 6 The scraper assembly 5 also includes a rotating frame 502 connected and fixed to the driving ring 603, and a plurality of arc scrapers 503 are evenly distributed on the rotating frame 502, the arc scrapers 503 are arranged on the conical plate 302, and the pushing block 501 is connected and fixed to the arc scrapers 503; the rotating frame 502 is connected and fixed to the stirring rod 4, and a conical blanking plate 504 is fixedly connected to the upper side of the rotating frame 502, the blanking plate 504 is arranged in the stacking hopper 2, and a plurality of through holes 505 are opened on the blanking plate 504.

[0059] Specifically, the driving ring 603 drives the rotating frame 502 to rotate, so that the arc scraper 503 can rotate and scrape the raw materials accumulated on the conical plate 302, thereby improving the screening speed of the raw materials. At the same time, the blanking plate 504 is arranged in the blanking port of the stacking hopper 2, and multiple through holes 505 are arranged at equal intervals. On the one hand, the raw materials dropped from the stacking hopper 2 are evenly distributed on the conical plate 302, and on the other hand, the blanking port can be unblocked to avoid blockage of the blanking port. The conical setting of the blanking plate 504 can discharge the raw materials on the stacking hopper 2 cleanly to avoid residue.

[0060] Reference Figure 8The output end of the motor 601 is fixedly connected with a transmission gear 602 , the driving ring 603 is fixedly connected with a gear ring 604 , and the transmission gear 602 is meshingly connected with the gear ring 604 .

[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 As shown in the top view, since 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, which is a labor-saving movement, thereby saving output power and power consumption.

[0062] Among them, a plurality of support seats are arranged at equal intervals on the outside of the driving ring 603, the support seats are connected and fixed to the inner wall of the mixing box 1, and three U-shaped limiting rollers are rotatably arranged on the support seats. The limiting rollers are in rolling contact with the driving ring 603, so that the axis of the driving ring 603 and the axis of the mixing box 1 are located in the same vertical axis.

[0063] Reference Fig. 9 A plurality of connecting frames 607 are fixedly connected to the driving ring 603 , the connecting frame 607 is rotatably connected to a crushing roller 605 , and the connecting frame 607 is fixedly connected to a pushing plate 606 .

[0064] Specifically, the driving ring 603 drives the crushing roller 605 and the push plate 606 to rotate synchronously through the connecting frame 607, and the crushing roller 605 and the push 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, and the push plate 606 is in sliding contact with the inner wall of the annular groove 301. When the crushing roller 605 passes through a position where there are lumps or large particles of stone, it cooperates with the annular groove 301 to crush them into fine materials, and then the push plate 606 pushes the fine materials to the arc hole 306 to make them fall downward.

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

[0066] Specifically, the diameter of gear three 703 is greater than that of gear two 702, and the diameter of gear two 702 is greater than that of gear one 701. After gear three 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 driving ring 603, so that when the crushing roller 605 itself rotates, it can bite the contacted lumps or large-grained stones, and the phenomenon that the crushing roller 605 pushes the lumps or large-grained stones to move can be avoided, so that the lumps or large-grained stones can be effectively crushed at the lower end of the crushing roller 605 and the annular groove 301.

[0067] In the actual work process, refer to Figure 4 and Fig. 9 The inner wall of the annular groove 301 and the surface of the crushing roller 605 are both provided with anti-skid patterns, which can increase the friction against the agglomerates or large-grained stones, improve the bite effect, and prevent the agglomerates or large-grained stones from escaping.

[0068] Example 2, reference Fig. 9 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that an arc-shaped baffle 608 is fixedly connected to the side of the connecting frame 607 facing the discharge chute 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 port of the discharge trough 303, thereby preventing the discharge trough 303 from continuing to discharge when the crushing roller 605 is crushing the agglomerates or large-grained stones on the annular groove 301, thereby preventing the agglomerates or large-grained stones from falling between the crushing roller 605 and the push plate 606, resulting in the omission of crushing the agglomerates or large-grained stones. The rest of the structure is the same as that of the first embodiment.

[0070] Example 3, reference Figure 3 and Fig.10 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a conical plate 302 is located on one side of the annular hole 304 and is provided with a plurality of inclined grooves 307 at equal intervals. Two crushing knives 8 are fixedly connected to the blanking circular hole 305, and the crushing knives 8 are L-shaped.

[0071] Specifically, the arrangement of the inclined groove 307 makes the height of one side of the annular hole 304 toward the center of the conical plate 302 lower than the other side, thereby improving the interception effect on lumps or large-grained stones and preventing the lumps or large-grained stones from escaping from the annular hole 304 due to their own inertia. The two crushing knives 8 are symmetrically arranged on the blanking circular hole 305, and the blades are facing the center of the blanking circular hole 305. When the lumps or large-grained stones are too large to fall normally through the blanking circular hole 305, the pushing block 501 can push the lumps or large-grained stones to abut against the crushing knife 8, and the upper part of the crushing knife 8 can block the lumps or large-grained stones. The pushing block 501 cooperates with the crushing knife 8 to perform preliminary crushing of the lumps or large-grained stones and avoid blockage of the blanking circular hole 305.

[0072] The push 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 chamfers, so that the push block 501 can drive the agglomerates or large-grained stones on the annular hole 304 to move, and prevent the agglomerates or large-grained stones from being pushed and squeezed and sliding down out of the annular hole 304. The rest of the structure is the same as that of Example 2.

[0073] Comprehensive examples 1-3, the working principle of the present invention:

[0074] After the raw materials of cement clinker are proportioned, they are put into the stacking hopper 2, the motor 601 drives the driving ring 603 to rotate, the rotating frame 502 drives the dropping plate 504 to rotate, so that the raw materials on the stacking hopper 2 are evenly spread to the top of the conical plate 302 through the through hole 505, and the arc scraper 503 rotates and scrapes the raw materials accumulated on the conical plate 302, and the raw materials slide along the inclined surface on the conical plate 302, and the fine materials fall downward to the bottom of the mixing box 1 through the annular hole 304, and the lumps or large particles of stones are intercepted on the annular hole 304, and the pushing block 501 drives the lumps on the annular hole 304 to move. The lumps or large-particle stones are pushed to the circular hole 305 for dropping materials, and the lumps or large-particle stones pass through the circular hole 305 and roll down on the discharge trough 303 to the annular groove 301. When the crushing roller 605 passes the position where the lumps or large-particle stones are located, it cooperates with the annular groove 301 to crush them into fine materials. Then the push plate 606 pushes the fine materials to the arc hole 306 so that they fall downward 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 to discharge the mixed raw materials through the discharge pipe.

[0075] Example 4, reference Figure 1-Figure 10 , which is a fourth embodiment of the present invention, provides: a method for using a batching device for cement clinker production, comprising the following steps:

[0076] S1. Put the raw materials of cement clinker into the stacking hopper 2 according to the proportion. The stacking hopper 2 discharges the raw materials so that they slide down along the top of the conical plate 302. The fine materials fall into the bottom of the mixing box 1 through the annular hole 304. The lumps or large particles of stone are intercepted on the annular hole 304.

[0077] S2, the motor 601 drives the driving ring 603 to rotate, and the push block 501 drives the agglomerates or large-grained stones to move to the drop hole 305 and then fall to the discharge trough 303, and the discharge trough 303 drives the agglomerates or large-grained stones to slide onto the annular groove 301;

[0078] S3, the driving ring 603 drives the crushing roller 605 to rotate, and the crushing roller 605 cooperates with the annular groove 301 to crush the agglomerates or large-grained stones into fine materials, and then the push plate 606 drives the crushed fine materials to move to the arc hole 306 and fall to the bottom of the mixing box 1;

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

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A batching device for cement clinker production, characterized in that: The mixing box (1) comprises a material mixing hopper (2), a screening plate (3) and a stirring rod (4) which are sequentially installed from top to bottom in the mixing box (1); a scraping and crushing mechanism is arranged on the upper side of the screening plate (3); and the scraping and crushing mechanism is in driving connection with the stirring rod (4); The screening plate (3) comprises an annular groove (301) fixedly connected to the mixing box (1), a conical plate (302) is fixedly mounted on the annular groove (301), a plurality of discharge grooves (303) are evenly distributed on the lower part of the conical plate (302), one end of the discharge groove (303) passes through the conical plate (302) and extends to the top of the annular groove (301), and a plurality of annular holes (304) are concentrically formed on the conical plate (302), a plurality of blanking circular holes (305) are formed on the annular hole (304) at equal intervals, and the blanking circular holes (305) are arranged above the discharge groove (303); The scraper and crushing mechanism comprises a scraper component (5) and a crushing component (6), wherein the scraper component (5) comprises a pushing block (501) arranged in an annular hole (304), and the crushing component (6) comprises a motor (601) fixedly installed on the outside of a mixing box (1), wherein the output end of the motor (601) penetrates into the mixing box (1) and is connected to a driving ring (603) in a transmission manner, wherein the driving ring (603) is rotatably connected to the mixing box (1), and a plurality of crushing rollers (605) and a plurality of pushing plates (606) are evenly distributed on the driving ring (603), and the crushing rollers (605) and the pushing plates (606) are both arranged on the annular groove (301).

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

3. The batching device for cement clinker production according to claim 1, characterized in that: The cross section of the annular groove (301) is U-shaped, and a plurality of arc-shaped holes (306) are provided on the annular groove (301) at equal intervals.

4. The batching device for cement clinker production according to claim 1, characterized in that: The scraper assembly (5) further comprises a rotating frame (502) connected and fixed to the driving ring (603), a plurality of arc-shaped scrapers (503) are evenly distributed on the rotating frame (502), the arc-shaped scrapers (503) are arranged on the conical plate (302), and the pushing block (501) is connected and fixed to the arc-shaped scrapers (503); The rotating frame (502) is fixedly connected to the stirring rod (4), and a material blanking plate (504) with a conical structure is fixedly connected to the upper side of the rotating frame (502). The material blanking plate (504) is arranged in the stacking hopper (2), and a plurality of through holes (505) are opened on the material blanking plate (504).

5. The batching device for cement clinker production according to claim 1, characterized in that: The output end of the motor (601) is fixedly connected to a transmission gear (602), the drive ring (603) is fixedly connected to a gear ring (604), and the transmission gear (602) is meshingly connected to the gear ring (604).

6. The batching device for cement clinker production according to claim 1, characterized in that: A plurality of connecting frames (607) are fixedly connected to the driving ring (603), the connecting frame (607) is rotatably connected to a crushing roller (605), and the connecting frame (607) is fixedly connected to a pushing plate (606).

7. The batching device for cement clinker production according to claim 6, characterized in that: A driving unit (7) is mounted on the connecting frame (607), and the driving unit (7) comprises a gear set and an arc-shaped rack (704). The gear set comprises a gear one (701) coaxially connected to the crushing roller (605), one side of the gear one (701) is meshingly connected to a gear two (702), one side of the gear two (702) is coaxially connected to a gear three (703), the gear three (703) is meshingly transmitted with the arc-shaped rack (704), and the arc-shaped rack (704) is connected and fixed to the mixing box (1).

8. The batching device for cement clinker production according to claim 6, characterized in that: An arc-shaped baffle (608) is fixedly connected to one side of the connecting frame (607) facing the discharge chute (303).

9. The batching device for cement clinker production according to claim 1, characterized in 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 knives (8) are fixedly connected to the blanking circular hole (305), and the crushing knives (8) are in an L-shaped structure.

10. A method for using a batching device for cement clinker production, which is applied to the batching device for cement clinker production according to claim 3, characterized in that: The following steps are involved: S1. Put various raw materials of cement clinker into the stacking hopper (2) according to the proportions. The stacking hopper (2) discharges the raw materials so that they slide down along the top of the conical plate (302). Fine materials fall into the bottom of the mixing box (1) through the annular hole (304). Agglomerates or large-grained stones are intercepted on the annular hole (304). S2, the motor (601) drives the driving ring (603) to rotate, and the push block (501) drives the agglomerates or large-grained stones to move to the drop hole (305) and then fall to the discharge trough (303), and the discharge trough (303) drives the agglomerates or large-grained stones to slide onto the annular groove (301); S3, the driving ring (603) drives the crushing roller (605) to rotate, and the crushing roller (605) cooperates with the annular groove (301) to crush the lumps or large-grained stones into fine materials, and then the push plate (606) drives the crushed fine materials to move to the arc hole (306) and fall to the bottom of the mixing box (1); S4, the stirring rod (4) rotates to stir and mix the raw materials and the crushed fine materials, and after the stirring is completed, they are discharged through the discharge pipe at the bottom of the mixing box (1).

Images