Storage bin material stabilizing device for cement production
By designing unloading hoppers and unblocking mechanisms in cement production, the problem of hopper blockage can be solved, achieving automated anti-blockage and unblocking, improving material flow and production efficiency, reducing equipment damage, and ensuring safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-04-07
AI Technical Summary
Cement silos are prone to clogging, especially when the particle size of the material decreases, the viscosity increases, or the moisture content rises, resulting in low production efficiency, poor safety, and serious equipment damage.
A material stabilization device for cement production silos was designed, including a discharge silo and a blockage clearing mechanism. The blockage clearing blade contacts and rotates with the inner wall of the discharge silo to clear the adhering material. Combined with a vibration auxiliary mechanism and a controller, automated anti-blockage and blockage clearing are achieved.
It effectively solves the problem of silo blockage, improves material flow, reduces manual intervention, reduces equipment damage, and enhances production efficiency and safety.
Smart Images
Figure CN224091030U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement production technology, and in particular to a material stabilizing device for cement production silos. Background Technology
[0002] Limestone is an important raw material in cement production, and it is usually fed into the next stage of the system through feeding systems and silos for raw material batching. However, in production, blockages in sandstone silos are frequently observed. When the material changes—particle size decreases, the proportion of small particles increases, the material viscosity increases, or the moisture content rises—the silo blockage becomes more severe, often requiring manual knocking and cleaning operations. This seriously affects production efficiency and safety, increases the labor intensity and safety uncertainty of personnel, and causes significant damage to equipment. Utility Model Content
[0003] Therefore, the main objective of this utility model is to provide a material stabilizing device for cement production silos that can solve the problem of silo blockage.
[0004] To achieve the above objectives, this utility model provides a material stabilizing device for cement production silos, comprising:
[0005] Material warehouse;
[0006] A transition compartment is connected to the lower part of the material compartment;
[0007] The material stabilizing device includes a discharge bin and a blockage clearing mechanism. The discharge bin is located on the side of the transition bin away from the material bin. The blockage clearing mechanism is located in the discharge bin and contacts the inner wall of the discharge bin. The blockage clearing mechanism can move relative to the inner wall of the discharge bin to clear the material adhering to the inner wall of the discharge bin.
[0008] Optionally, the size of the transition chamber gradually decreases from the material bin to the unloading bin.
[0009] Optionally, the size of the unloading hopper gradually decreases from the direction of the material hopper toward the unloading hopper.
[0010] Optionally, the unblocking mechanism includes a drive assembly and an unblocking blade connected by a transmission. The unblocking blade contacts the inner wall of the unloading hopper, and the drive assembly is used to drive the unblocking blade to rotate around the axis of the unloading hopper to clean the material adhering to the inner wall of the unloading hopper.
[0011] Optionally, the number of unblocking blades is two or more, and the two or more unblocking blades are spaced apart.
[0012] Optionally, of the two or more unblocking blades, at least one unblocking blade contacts the upper part of the inner wall of the unloading bin, and at least one unblocking blade contacts the lower part of the inner wall of the unloading bin.
[0013] Optionally, the unblocking knife, which contacts the upper part of the inner wall of the unloading bin, extends into the transition bin.
[0014] Optionally, the drive assembly includes a motor, a planetary reducer, and planetary gears. The motor is driven by the planetary reducer, the planetary reducer is driven by the planetary gears, and the planetary gears are driven by the unblocking knife.
[0015] Optionally, the cement production material silo stabilizing device further includes a receiving hopper and a weighing conveyor belt. The receiving hopper is located on the side of the unloading silo away from the transition silo, and the weighing conveyor belt is located below the receiving hopper.
[0016] Optionally, the cement production silo stabilizing device further includes a vibration auxiliary mechanism, which includes two or more vibrators. The two or more vibrators are evenly spaced on the side wall of the unloading silo, and the vibrators can drive the unloading silo to vibrate.
[0017] Optionally, the cement production silo stabilizing device further includes a controller, which is communicatively connected to the unblocking mechanism, the vibration auxiliary mechanism, and the weighing conveyor belt. The controller is used to receive weight information detected by the weighing conveyor belt and to control the start and stop of the unblocking mechanism and the vibration auxiliary mechanism.
[0018] Optionally, a force sensor is installed on the weighing conveyor belt, and a pressure sensor and a level sensor are installed in the unloading hopper. The force sensor, pressure sensor, and level sensor are all communicatively connected to the controller, which is used to receive information detected by the force sensor, pressure sensor, and level sensor.
[0019] The advantages of this utility model's technical solution are as follows: In the cement production process, after the material enters the material silo, it flows into the transition silo under gravity, then into the unloading silo, and finally out to the required location. On the one hand, the material is prone to blockage at the outlet of the unloading silo due to factors such as the outlet size. On the other hand, due to environmental protection measures, the spraying intensity is increased to suppress dust, resulting in higher moisture content in the raw materials, which makes the material more agglomerated, sticky, and less fluid, leading to easier blockage. However, due to the anti-blocking mechanism of this application, when the inner wall of the unloading silo becomes blocked, the anti-blocking mechanism moves relative to the inner wall of the unloading silo to eliminate the phenomenon of material sticking to the wall and forming a crust, improve the flow state of the material in the entire unloading silo, fundamentally solve the problem of unstable material discharge from the unloading silo, and solve the blockage problem of the silo. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 the devices shown in these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of a cement production silo stabilizing device according to one embodiment;
[0022] Figure 2 This is an isometric sectional view of a material stabilizing device according to an embodiment;
[0023] Among them, 100 is the material silo; 200 is the transition silo; 300 is the material stabilizing device; 310 is the unloading silo; 311 is the pressure sensor; 312 is the material level sensor; 320 is the unblocking mechanism; 321 is the drive assembly; 3211 is the motor; 3212 is the planetary reducer; 322 is the unblocking knife; 400 is the receiving hopper; 500 is the weighing conveyor belt; 510 is the force sensor; 600 is the vibration auxiliary mechanism; 610 is the vibrator; and 700 is the controller.
[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, "and / or" throughout the text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0027] like Figure 1 and Figure 2 As shown, a cement production silo stabilizing device 300 includes a material silo 100, a transition silo 200, and the stabilizing device 300. The transition silo 200 is connected to the lower part of the material silo 100. The stabilizing device 300 includes a discharge silo 310 and a clearing mechanism 320. The discharge silo 310 is located on the side of the transition silo 200 away from the material silo 100. The clearing mechanism 320 is located in the discharge silo 310, contacts the inner wall of the discharge silo 310, and can move relative to the inner wall of the discharge silo 310 to clean the material adhering to the inner wall of the discharge silo 310. In this embodiment, the material is limestone.
[0028] In the cement production process, after the material enters the material silo 100, it flows into the transition silo 200 under the action of gravity, and then into the discharge silo 310. Finally, it flows out of the discharge silo 310 to the required position. On the one hand, the material is prone to blockage at the outlet of the discharge silo 310 due to the outlet size and other reasons. On the other hand, due to environmental protection measures, the spraying intensity is increased to suppress dust, resulting in higher moisture content in the raw materials, which makes the material more agglomerated, sticky, and less fluid, making it more prone to blockage. However, due to the setting of the unblocking mechanism 320 in this application, when the inner wall of the discharge silo 310 is blocked, the unblocking mechanism 320 moves relative to the inner wall of the discharge silo 310 to eliminate the phenomenon of material sticking to the wall and forming a skin, improve the flow state of the material in the entire discharge silo 310, fundamentally solve the problem of unstable material discharge in the discharge silo 310, and solve the blockage problem of the silo.
[0029] Specifically, increasing the spraying intensity on the material causes moisture to cause the material particles to stick together, resulting in larger physical sizes. When the ratio of the physical size of the particles to the diameter of the discharge port reaches a certain value, i.e., when the clogging threshold is reached, clogging, scaling, and arching will occur frequently.
[0030] Furthermore, the material stabilizing device 300 allows the present application to use a wider variety of inexpensive materials. Even when using a wider variety of inexpensive materials, the material stabilizing device 300 can maintain the smooth flow of materials, thereby improving the adaptability to materials and promoting production quality and efficiency.
[0031] refer to Figure 1 From the material bin 100 toward the unloading bin 310, the size of the transition bin 200 gradually decreases. In this embodiment, the transition bin 200 is frustum-shaped. It is understood that in other embodiments, the transition bin 200 may also be other suitable shapes.
[0032] refer to Figure 1 From the material bin 100 toward the unloading bin 310, the size of the unloading bin 310 gradually decreases. In this embodiment, the transition bin 200 is frustum-shaped. It is understood that in other embodiments, the transition bin 200 may also be other suitable shapes.
[0033] refer to Figure 1 and Figure 2 The unblocking mechanism 320 includes a drive assembly 321 and an unblocking blade 322 connected by a transmission. The unblocking blade 322 contacts the inner wall of the unloading bin 310. The drive assembly 321 drives the unblocking blade 322 to rotate around the axis of the unloading bin 310 to clean the material adhering to the inner wall of the unloading bin 310. Specifically, the relative movement between the internal unblocking blade 322 and the bin wall effectively expands the outlet cross-section several times. The drive assembly 321 drives the unblocking blade 322 to rotate around the axis of the unloading bin 310, forming an anti-blocking and unblocking system to achieve all-round anti-blocking and unblocking. This can eliminate the phenomenon of material sticking to the wall and forming a skin within the range of the unblocking blade 322, improve the flow state of the material in the entire material bin 100, and fundamentally solve the problem of unstable material discharge from the bin.
[0034] refer to Figure 2 The number of unblocking blades 322 is two or more, and the two or more unblocking blades 322 are spaced apart. Specifically, the use of two or more unblocking blades 322 makes the unblocking effect more reliable.
[0035] refer to Figure 2In a configuration of two or more unblocking blades 322, at least one unblocking blade 322 contacts the upper part of the inner wall of the unloading bin 310, and at least one unblocking blade 322 contacts the lower part of the inner wall of the unloading bin 310. Specifically, this arrangement ensures that each unblocking blade 322 does not need to traverse the entire height of the unloading bin 310, making the unblocking blades 322 more reliable and less prone to failure. Furthermore, this configuration of the unblocking blades 322 enables omnidirectional active anti-blocking and unblocking functions, providing a wider and more comprehensive coverage.
[0036] Furthermore, it should be mentioned that the unblocking blade 322, which contacts the upper part of the inner wall of the unloading bin 310, can alleviate the problem of material adhering to the upper part of the unloading bin 310. The unblocking blade 322, which contacts the lower part of the inner wall of the unloading bin 310, is used to solve the blockage problem at the throat. This prevents the unloading bin 310 from experiencing lower blockage, middle crusting, or high-level arching, allowing the material to flow continuously within the unloading bin 310.
[0037] refer to Figure 1 and Figure 2 The unblocking blade 322, which contacts the upper part of the inner wall of the unloading bin 310, extends into the transition bin 200. This arrangement is used to solve the blockage problem at the junction of the transition bin 200 and the unloading bin 310.
[0038] The transition chamber 200 and the unloading chamber 310 are made of stainless steel with a thickness of 10-20mm. In this embodiment, the thickness of the transition chamber 200 and the unloading chamber 310 is 13mm.
[0039] refer to Figure 1 The drive assembly 321 includes a motor 3211, a planetary reducer 3212, and planetary gears (not shown). The motor 3211 is connected to the planetary reducer 3212, the planetary reducer 3212 is connected to the planetary gears, and the planetary gears are connected to the unblocking knife 322. Specifically, the planetary reducer 3212 has the advantages of high torque, small size, and high safety factor, ensuring the service life and load capacity of the planetary reducer 3212. Combined with the overload protection function of the motor 3211, it protects the equipment from damage when foreign objects cause obstruction.
[0040] In this embodiment, the motor 3211 has a power of 3kW, a rated voltage of 380V, and a speed of 0.18r / min. It is understood that in other embodiments, the power and speed of the motor 3211 can be greater or less, as long as the unblocking knife 322 can achieve the unblocking function.
[0041] refer to Figure 1The cement production material silo stabilizing device 300 also includes a receiving hopper 400 and a weighing conveyor belt 500. The receiving hopper 400 is located on the side of the unloading silo 310 away from the transition silo 200, and the weighing conveyor belt 500 is located below the receiving hopper 400.
[0042] refer to Figure 1 The cement production silo stabilizing device 300 also includes a vibration auxiliary mechanism 600, which comprises two or more vibrators 610. These vibrators 610 are evenly spaced and arranged on the side wall of the unloading silo 310, and can drive the unloading silo 310 to vibrate. Specifically, the arrangement of two or more vibrators 610 allows the material to flow more smoothly under the combined action of gravity and vibration, preventing material agglomeration and bridging, and reducing the risk of blockage. The vibration frequency and amplitude of the vibrators 610 can be adjusted by a controller 700 according to the material characteristics and the silo's operating status. In this embodiment, the vibrator 610 is a high-frequency vibrator 610.
[0043] refer to Figure 1 The cement production silo stabilizing device 300 also includes a controller 700, which is communicatively connected to the unblocking mechanism 320 and is used to control the start and stop of the unblocking mechanism 320. Furthermore, the controller 700 can also control the rotational speed of the unblocking blade 322 in the unblocking mechanism 320.
[0044] The controller 700 is communicatively connected to the vibration auxiliary mechanism 600, and the controller 700 is used to control the start and stop of the vibration auxiliary mechanism 600. Furthermore, the controller 700 can also control the vibration frequency and amplitude of the vibrator 610 in the vibration auxiliary mechanism 600.
[0045] The controller 700 is communicatively connected to the weighing conveyor belt 500, and the controller 700 is used to receive the weight information detected by the weighing conveyor belt 500.
[0046] Further, refer to Figure 1 and Figure 2 A force sensor 510 is installed on the weighing conveyor belt 500, and a pressure sensor 510 311 and a level sensor 312 are installed in the unloading hopper 310. The force sensor 510, pressure sensor 510 311 and level sensor 312 are all connected to the controller 700. The controller 700 is used to receive the information detected by the force sensor 510, pressure sensor 510 311 and level sensor 312, and to control the start and stop of the unblocking mechanism 320 and the vibration auxiliary mechanism 600, or to control the working parameters of the unblocking mechanism 320 and the vibration auxiliary mechanism 600 according to the information received from each sensor.
[0047] Specifically, when the force sensor 510 on the weighing conveyor belt 500 detects that the force is no longer increasing or the magnitude of the increase is significantly reduced, it can be determined that the unloading hopper 310 is blocked. Then, the controller 700 controls the unblocking mechanism 320 and the vibrator 610 to start. When the force sensor 510 on the weighing conveyor belt 500 detects that the force has returned to its normal magnitude, it can be determined that the unblocking is complete. Then, the controller 700 controls the unblocking mechanism 320 and the vibrator 610 to stop. The rotation speed of the unblocking mechanism 320 and / or the vibration frequency and amplitude of the vibrator 610 can be controlled based on the magnitude of the force increase detected by the force sensor 510. In addition, the controller 700 can also determine whether the unloading hopper 310 is blocked based on the detection data of the pressure sensor 510311 and the material level sensor 312 inside the unloading hopper 310, thereby adaptively controlling the start / stop or working status of the unblocking mechanism 320 and the vibrator 610.
[0048] Furthermore, the unblocking mechanism 320 is normally in servo mode. When the material hopper 100 becomes clogged, the controller 700 controls the unblocking mechanism 320 to rotate based on signals from the force sensor 510, pressure sensor 510311, and level sensor 312. Once the clog in the material hopper 100 is cleared, the unblocking mechanism 320 stops, and the unloading hopper 310 resumes normal material discharge. The stopping of the unblocking mechanism 320 can be controlled based on feedback from the force sensor 510, pressure sensor 510311, and level sensor 312, or a preset time can be set, such as automatically stopping after approximately 10 seconds of operation. The equipment requires no on-site operation or maintenance; it operates entirely automatically.
[0049] The unblocking mechanism 320 adopts a servo operating mode. In automatic mode, it intelligently determines the start-up time based on the material cut-off signal sent by the weighing conveyor belt 500. It can achieve local, automatic, and remote control operation, ensuring reliable operation and low maintenance. Furthermore, it eliminates the operation mode of constantly stopping when blocked, significantly extending the service life of the unblocking mechanism 320.
[0050] Furthermore, the material stabilizing device 300 adopts a labyrinth + double-contact rubber seal, with a sealing pre-tightening compensation device installed on the upper part to ensure the sealing effect of the rubber. This sealing structure has been verified over many years and is reliable, durable, and provides excellent sealing performance.
[0051] Furthermore, the material stabilizing device 300 is equipped with an automatic lubrication system, which can automatically add lubricating grease at regular intervals and in measured quantities according to the operating frequency of the material stabilizing device 300, ensuring the effectiveness and lifespan of the equipment.
[0052] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent device transformations made based on the contents of this utility model specification and drawings under the utility model concept, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A material stabilizing device for cement production silos, characterized in that, include: Material warehouse; A transition silo is connected to the lower part of the material silo; The material stabilizing device includes a discharge bin and a blockage clearing mechanism. The discharge bin is located on the side of the transition bin away from the material bin. The blockage clearing mechanism is located in the discharge bin and contacts the inner wall of the discharge bin. The blockage clearing mechanism can move relative to the inner wall of the discharge bin to clear the material adhering to the inner wall of the discharge bin.
2. The cement production silo stabilizing device as described in claim 1, characterized in that, The unblocking mechanism includes a drive assembly and an unblocking blade connected by a transmission. The unblocking blade contacts the inner wall of the unloading hopper. The drive assembly is used to drive the unblocking blade to rotate around the axis of the unloading hopper to clean the material adhering to the inner wall of the unloading hopper.
3. The cement production silo stabilizing device as described in claim 2, characterized in that, The number of unblocking blades is two or more, and the two or more unblocking blades are spaced apart.
4. The cement production silo stabilizing device as described in claim 3, characterized in that, Of the two or more unblocking blades, at least one unblocking blade is in contact with the upper part of the inner wall of the unloading bin, and at least one unblocking blade is in contact with the lower part of the inner wall of the unloading bin.
5. The cement production silo stabilizing device as described in claim 4, characterized in that, The unblocking knife, which contacts the upper part of the inner wall of the unloading bin, extends into the transition bin.
6. The cement production silo stabilizing device as described in claim 2, characterized in that, The drive assembly includes a motor, a planetary reducer, and planetary gears. The motor is driven by the planetary reducer, the planetary reducer is driven by the planetary gears, and the planetary gears are driven by the unblocking knife.
7. The cement production silo stabilizing device as described in claim 1, characterized in that, The cement production material silo stabilizing device also includes a receiving hopper and a weighing conveyor belt. The receiving hopper is located on the side of the unloading silo away from the transition silo, and the weighing conveyor belt is located below the receiving hopper.
8. The cement production silo stabilizing device as described in claim 7, characterized in that, The cement production material silo stabilizing device also includes a vibration auxiliary mechanism, which includes two or more vibrators. The two or more vibrators are evenly spaced on the side wall of the unloading silo, and the vibrators can drive the unloading silo to vibrate.
9. The cement production silo stabilizing device as described in any one of claims 1-8, characterized in that, The cement production material silo stabilizing device also includes a controller, which is communicatively connected to the unblocking mechanism, the vibration auxiliary mechanism, and the weighing conveyor belt. The controller is used to receive the weight information detected by the weighing conveyor belt and to control the start and stop of the unblocking mechanism and the vibration auxiliary mechanism.
10. The cement production silo stabilizing device as described in claim 9, characterized in that, A force sensor is installed on the weighing conveyor belt, and a pressure sensor and a level sensor are installed in the unloading hopper. The force sensor, pressure sensor, and level sensor are all communicatively connected to the controller, which is used to receive information detected by the force sensor, pressure sensor, and level sensor.