Feeding mechanism for calcium carbonate production
By setting up a material selection component in calcium carbonate production to screen limestone crushed material into coarse and fine materials, the problem of equipment blockage caused by uneven crushed material size is solved, thereby improving production efficiency and equipment life.
Patent Information
- Application Number
- CN202423046933.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-11
AI Technical Summary
In the current calcium carbonate production process, the crushed stone is uneven in size and irregular in shape, which makes the feeding equipment prone to clogging and reduces work efficiency.
By setting up the material selection component 3, the crushed limestone fragments are screened into coarse limestone and fine limestone, and then conveyed to the rotary kiln by a screw conveyor to avoid blockage by large pieces of fragments.
This achieves uniform screening of limestone crushed materials, improving production efficiency and extending the service life of the equipment.
Smart Images
Figure CN223641891U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of calcium carbonate production equipment, and more specifically, it relates to a feeding mechanism for calcium carbonate production. Background Technology
[0002] Calcium carbonate powder is refined from limestone through decomposition and chemical reactions. In the production process, large pieces of limestone need to be initially crushed into small pieces, which are then fed into a rotary kiln for calcination. In reality, it's difficult to achieve uniform size and shape of the crushed stone, causing existing feeding mechanisms to easily become clogged when encountering large pieces, significantly reducing work efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a feeding mechanism for calcium carbonate production, which aims to solve the technical problems involved in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a feeding mechanism for calcium carbonate production, comprising:
[0005] A crushing box, wherein the interior of the crushing box is provided with a receiving cavity, and the top of the crushing box is provided with a feeding port communicating with the receiving cavity;
[0006] There are two crushing rollers, which are arranged parallel to each other at the upper end of the receiving cavity, and there is a crushing channel between the two crushing rollers that corresponds to the feeding port.
[0007] The material selection component is inclinedly disposed in the receiving cavity, located below the two crushing rollers. The material selection component is provided with a fine material passage area and a coarse material passage area that are connected to each other. The fine material passage area is located at the upwardly inclined end of the material selection component and below the crushing channel. A screen is provided in the fine material passage area.
[0008] A partition plate is disposed in the receiving cavity and located below the material selection component. The partition plate divides the receiving cavity into a fine material storage cavity and a coarse material storage cavity. The fine material storage cavity is located below the fine material passage area and is used to collect limestone fine material. The coarse material storage cavity is located below the coarse material passage area and is used to collect limestone coarse material.
[0009] The screw conveyor has its feed inlet connected to the fine material storage chamber via a first discharge pipe, and is used to transport limestone fines to the rotary kiln.
[0010] In one possible implementation, a transition guide plate is inclinedly provided within the accommodating cavity. The transition guide plate is located between the material selection component and the crushing roller. One end of the transition guide plate is inclined downwards, passing through the transmission path of the crushing channel and extending above the upwardly inclined end of the screen. The transition guide plate is used to guide limestone crushed material to fall onto the screen.
[0011] In one possible implementation, the transition guide plate has anti-smashing ribs on the end face facing the crushing roller.
[0012] In one possible implementation, the cross-section of the anti-smashing ridge is arched.
[0013] In one possible implementation, the material selection component includes a frame and mounting blocks. The mounting blocks are respectively disposed on the side walls of the receiving cavity at both ends of the frame in the inclined direction. The mounting blocks are slidably connected to both ends of the frame, and an elastic member is provided between the end of the frame and the mounting block.
[0014] In one possible implementation, the mounting block includes a first block and a second block. The first block corresponds to the upwardly inclined end of the frame and has a longitudinal groove. A first slider is hinged to the end of the frame corresponding to the first block, and the first slider is slidably connected in the longitudinal groove. An elastic component corresponding to the first block is disposed between the first slider and the longitudinal groove. The second block corresponds to the downwardly inclined end of the frame and has a transverse groove. A second slider is hinged to the end of the frame corresponding to the second block, and the second slider is slidably connected in the transverse groove. An elastic component corresponding to the second block is disposed between the second slider and the transverse groove.
[0015] In one possible implementation, the upwardly inclined end of the transition guide plate is hinged to the crushing box, the downwardly inclined end of the transition guide plate is hinged to a connecting rod, and the other end of the connecting rod is hinged to the second slider.
[0016] In one possible implementation, the partition plate includes a first vertical plate, the lower end of which is connected to a first inclined plate and a second inclined plate. The first inclined plate is inclined downward to the bottom of the receiving cavity on the side that is inclined upward toward the material selection component, and the second inclined plate is inclined downward to the bottom of the receiving cavity on the side that is inclined downward toward the material selection component.
[0017] In one possible implementation, the bottom of the crushing box is provided with a coarse material discharge port communicating with the coarse material storage chamber, and also includes a belt conveyor located below the coarse material discharge port for conveying limestone coarse material.
[0018] In one possible implementation, the feeding port is provided with two symmetrically arranged guide plates, which are inclined downward toward the crushing channel.
[0019] The beneficial effects of the feeding mechanism for calcium carbonate production provided by this utility model are as follows: Compared with the prior art, the feeding mechanism for calcium carbonate production of this utility model, by setting a material selection component, screens the limestone crushed by the crushing roller into limestone coarse material and limestone fine material. The limestone fine material is transported to the rotary kiln by a screw conveyor, thereby avoiding the screw conveyor from being blocked by limestone crushed material with a larger block size, thus improving the operating efficiency. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A longitudinal sectional view of a feeding mechanism for calcium carbonate production provided in this embodiment of the present invention;
[0022] Figure 2 A top view of the material selection component in the crushing box provided in an embodiment of this utility model;
[0023] Figure 3 For along Figure 2 The internal structure of the crushing chamber is shown in the cross-section of line AA.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Crushing box; 101. Feeding port; 102. Guide plate; 103. Fine material discharge port; 104. Coarse material discharge port; 2. Crushing roller; 3. Material selection component; 31. Frame; 311. Long rod; 312. Crossbar; 32. First block; 321. Longitudinal chute; 33. Second block; 331. Transverse chute; 34. Helical spring; 35. Anti-detachment block; 301. Screen; 302. First slider; 303. Second slider; 4. Divider plate; 41. First longitudinal plate; 42. First inclined plate; 43. Second inclined plate; 5. Screw conveyor; 6. Transition guide plate; 61. Anti-smashing rib; 7. Connecting rod; 8. First discharge pipe; 9. Belt conveyor; 10. Fine material storage chamber; 11. Coarse material storage chamber. Detailed Implementation
[0026] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0030] Please see Figures 1 to 3This invention provides a feeding mechanism for calcium carbonate production. The feeding mechanism includes a crushing box 1, crushing rollers 2, a material selection component 3, a partition plate 4, and a screw conveyor 5. The crushing box 1 has an internal receiving cavity, and the top of the crushing box 1 has a feeding port 101 communicating with the receiving cavity. There are two crushing rollers 2, which are arranged parallel to each other at the upper end of the receiving cavity. A crushing channel corresponding to the feeding port 101 is provided between the two crushing rollers 2. In this embodiment, both crushing rollers 2 are provided with crushing teeth (not shown in the figure) circumferentially. The two crushing rollers 2 can be driven by two motors respectively, or one motor can drive one of them, using gears or other transmission components to drive the other. Existing technologies for driving the crushing rollers 2 are numerous and will not be described in detail. During operation, the two crushing rollers 2 rotate relative to each other. Large pieces of limestone can be crushed into limestone fragments. The material selection component 3 is inclinedly arranged in the receiving cavity and located below the two crushing rollers 2. The material selection component 3 is provided with a fine material passage zone and a coarse material passage zone connected to each other. The fine material passage zone is located at the upward inclined end of the material selection component 3 and below the crushing channel. A screen 301 is provided in the fine material passage zone. A partition plate 4 is arranged in the receiving cavity and located below the material selection component 3. The partition plate 4 divides the receiving cavity into a fine material storage cavity 10 and a coarse material storage cavity 11. The fine material storage cavity 10 is located below the fine material passage zone and is used to collect limestone fines. The coarse material storage cavity 11 is located below the coarse material passage zone and is used to collect limestone coarses. The feed inlet of the screw conveyor 5 is connected to the fine material storage cavity 10 through the first discharge pipe 8 and is used to transport the limestone fines to the rotary kiln.
[0031] The present invention provides a feeding mechanism for calcium carbonate production. Compared with the prior art, by setting a material selection component 3, the limestone crushed by the crushing roller 2 is screened into limestone coarse material and limestone fine material. The limestone fine material is conveyed to the rotary kiln by the screw conveyor 5, thereby avoiding the screw conveyor 5 from being blocked by the limestone crushed material with a larger block size, and thus improving the operating efficiency.
[0032] In some embodiments, please refer to Figure 1 and Figure 3 Two symmetrically arranged guide plates 102 are provided in the above-mentioned feeding port 101. The two guide plates 102 are inclined downward toward the crushing channel. The above arrangement can guide the limestone raw material to enter the crushing channel quickly during production.
[0033] In some embodiments, please refer to Figures 1 to 3A transition guide plate 6 is inclinedly provided within the accommodating cavity. The transition guide plate 6 is located between the material selection component 3 and the crushing roller 2. The downward-inclined end of the transition guide plate 6 passes through the transmission path of the crushing channel and extends above the upward-inclined end of the screen 301. The transition guide plate 6 is used to guide the limestone crushed material onto the screen 301. In application, the limestone crushed material, after being crushed by the crushing roller 2, directly falling onto the screen 301 will cause a significant impact on the screen 301. Over time, the screen 301 is prone to deformation or even breakage under the continuous impact of the limestone crushed material. To improve the screening effect of screen 301 on limestone fragments, in this embodiment, a transition guide plate 6 is added below the crushing roller 2. This allows the limestone fragments falling along the crushing channel to preferentially land on the transition guide plate 6, which then guides them onto the screen 301. By prioritizing the impact of the limestone fragments on the transition guide plate 6, the impact force of the limestone fragments can be reduced, allowing the limestone to fall onto the screen 301 more gently. This significantly reduces the impact force on the screen 301, thereby improving its service life.
[0034] In this embodiment, anti-smashing ribs 61 are provided on the end face of the transition guide plate 6 facing the crushing roller 2. There are multiple anti-smashing ribs 61, which are arranged laterally and continuously along the inclined direction of the transition guide plate 6. In this embodiment, the cross-section of the anti-smashing ribs 61 is arched. By providing anti-smashing ribs 61, on the one hand, the structural strength of the transition guide plate 6 is strengthened and its impact resistance is improved. On the other hand, the arched anti-smashing ribs 61 can slow down the transmission speed of limestone crushed material and reduce the impact force of limestone crushed material on the screen 301.
[0035] In some embodiments, please refer to Figures 1 to 3 The material selection component 3 includes a frame 31 and two mounting blocks. The two mounting blocks are respectively set on the side walls of the receiving cavity at both ends of the frame 31 in the inclined direction. The mounting blocks at both ends of the frame 31 are slidably connected, and elastic components are provided at the ends of the frame 31 and between them.
[0036] Specifically, the frame 31 includes two symmetrically arranged long rods 311 and two crossbars 312 spaced apart between the two long rods 311. One of the crossbars 312 is connected to the upwardly inclined end of the two long rods 311, and the other crossbar 312 is connected between the middle parts of the two long rods 311. The area between the two crossbars 312 is the fine material passage area, and the area between the crossbar 312 located in the middle of the long rod 311 and the downwardly inclined end of the long rod 311 is the coarse material passage area. The screen 301 is installed between the two crossbars 312. In this embodiment, each end of each long rod 311 corresponds to a mounting block, and the two mounting blocks corresponding to the same long rod 311 form a block group. In this embodiment, each block group includes a first block 32 and a second block 33. The first block 32 corresponds to the upwardly inclined end of the long rod 311, and the first block 32 is provided with a longitudinal groove 321. The end of the long rod 311 corresponding to the first block 32 is hinged with a first slider. 302, the first slider 302 is slidably connected in the longitudinal groove 321, and the elastic component corresponding to the first block 32 is disposed between the first slider 302 and the longitudinal groove 321; the second block 33 corresponds to the downward inclined end of the long rod 311, and the second block 33 is provided with a transverse groove 331. The end of the long rod 311 corresponding to the second block 33 is hinged to the second slider 303, and the second slider 303 is slidably connected in the transverse groove 331. The elastic component corresponding to the second block 33 is disposed between the second slider 303 and the transverse groove 331. In this embodiment, both the longitudinal groove 321 and the transverse groove 331 are T-shaped groove structures, and both the first slider 302 and the second slider 303 are T-shaped mechanism blocks adapted to them. The elastic component is a helical spring 34. An anti-detachment block 35 is also installed on the top of the longitudinal groove 321. The anti-detachment block 35 can prevent the long rod 311 from detaching from the longitudinal groove 321 by limiting the movement distance of the first slider 302. With the above settings, in practical applications, when limestone fragments fall onto the screen 301, the weight of the limestone fragments causes the frame 31 to compress the spiral spring 34 downwards. After the limestone fragments are screened, the compressed spiral spring 34 pushes the frame 31 to move upwards. Thus, with the transmission of limestone fragments, the spiral spring 34 causes the frame 31 to drive the screen 301 to vibrate up and down, thereby further accelerating the screening effect of the screen 301 on the limestone fragments.
[0037] Furthermore, in order to improve the vibration effect of the frame 31, the upward tilting end of the transition guide plate 6 is hinged to the crushing box 1, and a connecting rod 7 is hinged to the downward tilting end of the transition guide plate 6, so that the other end of the connecting rod 7 is hinged to the second slider 303. In this way, when the limestone crushed material impacts the transition guide plate 6, it can drive the transition guide plate 6 to rotate up and down, thereby driving the frame 31 to vibrate up and down.
[0038] In some embodiments, please refer to Figure 1 and Figure 3 The partition plate 4 includes a first vertical plate 41, and the lower end of the first vertical plate 41 is connected to a first inclined plate 42 and a second inclined plate 43 respectively. The first inclined plate 42 is inclined downward to the bottom of the receiving cavity on the side that is inclined upward toward the material selection component 3, thereby forming a fine material storage cavity 10 between the first inclined plate 42 and the side wall of the receiving cavity. The second inclined plate 43 is inclined downward to the bottom of the receiving cavity on the side that is inclined downward toward the material selection component 3, thereby forming a coarse material storage cavity 11 between the second inclined plate 43 and the side wall of the receiving cavity.
[0039] At the bottom of the crushing chamber 1, there are fine material discharge ports 103 and coarse material discharge ports 104. The fine material discharge port 103 is connected to the fine material storage chamber, and the first discharge pipe 8 is connected to the fine material discharge port 103. The limestone fine material can be transferred to the conveyor through the fine material discharge port 103 and the first discharge pipe 8. The coarse material discharge port 104 is connected to the coarse material storage chamber 11. A belt conveyor 9 is provided below the coarse material discharge port 104. With the help of the belt conveyor 9, the limestone coarse material in the coarse material storage chamber 11 can be transported to a designated location for further processing.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A feeding mechanism for calcium carbonate production, characterized in that, include: The crushing box (1) has an internal accommodating cavity and a feeding port (101) communicating with the accommodating cavity at the top. There are two crushing rollers (2), which are arranged parallel to each other at the upper end of the accommodating cavity. There is a crushing channel between the two crushing rollers (2) that corresponds to the feeding port (101). The material selection component (3) is inclinedly arranged in the accommodating cavity and located below the two crushing rollers (2). The material selection component (3) is provided with a fine material passage area and a coarse material passage area connected to each other. The fine material passage area is located at the upward inclined end of the material selection component (3) and below the crushing channel. A screen (301) is provided in the fine material passage area. A partition plate (4) is provided in the accommodating cavity and located below the material selection component (3). The partition plate (4) divides the accommodating cavity into a fine material storage cavity and a coarse material storage cavity (11). The fine material storage cavity is located below the fine material passage area and is used to collect limestone fine material. The coarse material storage cavity (11) is located below the coarse material passage area and is used to collect limestone coarse material. The screw conveyor (5) has its feed inlet connected to the fine material storage chamber via the first discharge pipe (8) and is used to transport limestone fines to the rotary kiln.
2. The feeding mechanism for calcium carbonate production as described in claim 1, characterized in that, A transition guide plate (6) is inclinedly provided in the accommodating cavity. The transition guide plate (6) is located between the material selection component (3) and the crushing roller (2). The downward inclined end of the transition guide plate (6) passes through the transmission path of the crushing channel and extends above the upward inclined end of the screen (301). The transition guide plate (6) is used to guide limestone crushed material to fall onto the screen (301).
3. The feeding mechanism for calcium carbonate production as described in claim 2, characterized in that, The transition guide plate (6) has anti-smashing ribs (61) on the end face facing the crushing roller (2).
4. The feeding mechanism for calcium carbonate production as described in claim 3, characterized in that, The cross-section of the anti-smashing protrusion (61) is arched.
5. The feeding mechanism for calcium carbonate production as described in claim 2, characterized in that, The material selection component (3) includes a frame (31) and mounting blocks. The mounting blocks are respectively disposed on the side walls of the receiving cavity at both ends of the frame (31) in the inclined direction. The mounting blocks are slidably connected to the two ends of the frame (31) respectively, and an elastic component is provided between the end of the frame (31) and the mounting block.
6. The feeding mechanism for calcium carbonate production as described in claim 5, characterized in that, The mounting block includes a first block (32) and a second block (33). The first block (32) corresponds to the upwardly inclined end of the frame (31). A longitudinal groove (321) is provided on the first block (32). A first slider (302) is hinged to the end of the frame (31) corresponding to the first block (32). The first slider (302) is slidably connected in the longitudinal groove (321). The elastic component corresponding to the first block (32) is disposed between the first slider (302) and the mounting block (33). Between the longitudinal slide groove (321); the second block (33) corresponds to the downward inclined end of the frame (31), the second block (33) is provided with a transverse slide groove (331), the end of the frame (31) corresponding to the second block (33) is hinged with a second slider (303), the second slider (303) is slidably connected in the transverse slide groove (331), and the elastic component corresponding to the second block (33) is disposed between the second slider (303) and the transverse slide groove (331).
7. The feeding mechanism for calcium carbonate production as described in claim 6, characterized in that, The upper end of the transition guide plate (6) is hinged to the crushing box (1), and the lower end of the transition guide plate (6) is hinged to a connecting rod (7). The other end of the connecting rod (7) is hinged to the second slider (303).
8. The feeding mechanism for calcium carbonate production as described in claim 1, characterized in that, The partition plate (4) includes a first vertical plate (41), and the lower end of the first vertical plate (41) is connected to a first inclined plate (42) and a second inclined plate (43). The first inclined plate (42) is inclined downward to the bottom of the receiving cavity on the side that is inclined upward toward the material selection component (3), and the second inclined plate (43) is inclined downward to the bottom of the receiving cavity on the side that is inclined downward toward the material selection component (3).
9. A feeding mechanism for calcium carbonate production as described in claim 1, characterized in that, The bottom of the crushing box (1) is provided with a coarse material discharge port (104) communicating with the coarse material storage chamber (11), and also includes a belt conveyor (9), which is located below the coarse material discharge port (104) and is used to transport limestone coarse material.
10. A feeding mechanism for calcium carbonate production as described in claim 1, characterized in that, The feeding port (101) is provided with two symmetrically arranged guide plates (102), which are inclined downward toward the crushing channel.