Multi-layer blockage clearing and crushing device for cement bunker bottom

Abstract

The utility model discloses a multi-layer type unblocking and crushing device at the bottom of a cement bunker, which comprises a crushing chamber, a crushing device and a poking rod, the crushing chamber is communicated with a blanking channel and a discharge pipe, the crushing device is rotatably arranged in the crushing chamber and comprises a plurality of crushing layers, each crushing layer comprises crushing shafts which are transversely arranged side by side, crushing knives are uniformly distributed on the crushing shafts, and the poking rod is communicated with the blanking channel. The crushing cutters in the same crushing layer are mutually staggered; a material poking rod penetrating through the crushing layer is movably arranged in the crushing chamber, and when the material poking rod moves upwards, the upper end of the material poking rod can stretch into the discharging channel; the crushing device is connected with a first driving device, and the poking rod is connected with a second driving device. According to the utility model, a plurality of crushing layers are arranged in the crushing chamber, so that materials can be uniformly and efficiently crushed; meanwhile, the material poking rod can effectively dredge blockage caused by cement caking in the discharging channel, and the device has the advantages of being smooth in discharging, good in crushing effect, high in blockage clearing and crushing efficiency of the whole device, high in controllability of particle fineness of prepared cement finished products and good in uniformity.

Description

Technical Field

[0001] This utility model belongs to the technical field of cement production and storage equipment, and specifically relates to a multi-layer unblocking and crushing device for the bottom of a cement silo. Background Technology

[0002] Cement production requires homogenization, and the finished cement needs to be stored. Therefore, cement plants typically have large-capacity cement silos, generally with a storage capacity of no less than 7 tons. To reduce the pressure exerted by the material's own weight on the discharge port at the bottom of the silo, pressure-relief cones or other pressure-reducing structures are usually installed above the discharge port. During cement homogenization or storage, due to the large storage volume and long storage time, cement is prone to caking at the bottom of the silo and in the discharge channel. This requires clearing and breaking up the caking material to prevent blockage of the discharge port, which would hinder discharge and affect unloading efficiency.

[0003] Limited by the cement silo capacity and the setting of the pressure-reducing cone at the bottom, the existing technology of probing material from the top of the silo and crushing it from the bottom cannot be applied. Furthermore, placing both the probing and crushing mechanisms at the bottom of the silo causes spatial interference, preventing simultaneous operation and leading to difficulties in continuous unloading and low production efficiency. Therefore, some existing technologies, such as CN212268388U, integrate the probing and crushing mechanisms into a single device. During crushing operations, the material feeding channel can be propelled simultaneously, solving the problem of continuous operation. However, this type of equipment typically uses a single crushing shaft or two crushing shafts arranged side-by-side to crush the falling cement blocks, resulting in high energy consumption, low crushing efficiency, and insufficiently fine and uniform cement particles after crushing. Utility Model Content

[0004] The purpose of this invention is to propose a multi-layer unblocking and crushing device for the bottom of a cement silo, so as to solve the problems of poor coordination between material clearing and crushing operations in existing cement silo bottom material unblocking equipment, high energy consumption of the crushing device, low crushing efficiency, and unstable quality of finished cement.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model proposes a multi-layer unblocking and crushing device for the bottom of a cement silo, including a crushing chamber, a crushing device and a material feeding rod. The crushing chamber is connected to the material feeding channel at the bottom of the cement silo, and the crushing chamber is connected to a discharge pipe.

[0007] The crushing chamber is rotatably equipped with a crushing device, which includes multiple crushing layers. Each crushing layer includes a crushing shaft arranged horizontally side by side. Crushing blades are evenly distributed on the crushing shaft, and the crushing blades on adjacent crushing shafts in the same crushing layer are staggered. A material-push rod is movably provided in the crushing chamber. The material-push rod is arranged through all crushing layers. When the material-push rod moves upward, its upper end can extend into the material discharge channel. The crushing device is connected to a first driving device, and the material-push rod is connected to a second driving device.

[0008] Based on the above settings, by setting multiple crushing layers in the crushing chamber and rationally distributing the crushing blades, it is ensured that the material can be crushed uniformly and efficiently. At the same time, the up and down movement of the feeding rod can effectively clear the blockage caused by cement lumps in the feeding channel. It has the characteristics of smooth feeding, good crushing effect, high overall equipment clearing and crushing efficiency, and high controllability and uniformity of the fineness of the cement finished product particles.

[0009] Preferably, the axial spacing of the crushing blades in each crushing layer on the crushing shaft gradually decreases from top to bottom. This design allows for sufficient space to be reserved in the upper layer of the crushing chamber to process large pieces of material, and makes it easier to grasp large pieces of material, crush them layer by layer, and ensure that the particle size meets the preset requirements and is uniform, thereby achieving a better crushing effect.

[0010] Preferably, the radial spacing of the crushing blades in each crushing layer on the crushing shaft gradually decreases from top to bottom. This design achieves layer-by-layer grading crushing of cement blocks by changing the modulus of the crushing blades in the radial direction, effectively maintaining the effective material gripping of each layer, thereby improving the energy conversion efficiency of the drive device and reducing energy consumption.

[0011] Preferably, one or more material-push rods are provided. The material-push rods are located at the center of the crushing chamber or are evenly distributed between the crushing shafts. The number of material-push rods is determined according to the cross-sectional size and shape of the material discharge channel. This design facilitates the material-push action surface of the material-push rods to cover the entire material discharge channel, thereby enabling continuous and stable material discharge from the material discharge channel, improving the synergistic operation effect of material-push and crushing, and achieving higher clearing and crushing efficiency.

[0012] Preferably, multiple material-carrying rods are provided, which are distributed between the crushing shaft and the side wall of the crushing chamber. The material-carrying rods are evenly distributed relative to the crushing chamber. This design can simplify the avoidance design of the material-carrying rods in the crushing device, reduce the interference of the material-carrying rods on the crushing device, optimize the crushing effect in the crushing chamber, and prevent too many large particles of material from passing through directly and clogging the discharge pipe.

[0013] More preferably, the second driving device is independently set for the material-push rod. The second driving device drives a single material-push rod to move up and down independently. This design is conducive to enabling the material-push rod to move up and down simultaneously, or move up and down alternately, or operate as a single rod, etc., to flexibly deal with different blockages in the material discharge channel, effectively agitate and clear the material, prevent secondary blockages, ensure the maximum material-push effect, and further improve the blockage clearing efficiency.

[0014] Preferably, the first driving device includes a power source and a synchronous gear set. The crushing shaft is divided into a driving shaft and a driven shaft. The driving shaft is directly connected to the power source. The driving shaft and the driven shaft are connected by a synchronous gear set. This design helps to ensure uniform transmission of crushing force and effectively improves crushing uniformity.

[0015] Preferably, the first drive device is set for each crushing layer, and the crushing shaft of each crushing layer includes a drive shaft and a driven shaft. This design helps to ensure that the crushing shafts in the same crushing layer rotate synchronously, which is more conducive to improving the material gripping capacity and ensuring the crushing effect.

[0016] Preferably, the first drive device is a set, corresponding to the crushing device. The crushing shaft is divided into one drive shaft and multiple driven shafts. This design allows for the use of fewer power sources, which helps to simplify the overall structure of the equipment and is especially suitable for scenarios where the installation space is relatively limited.

[0017] Preferably, the power source of the first drive device is a hydraulic motor or a geared motor, and the second drive device is a hydraulic cylinder or an electric push rod.

[0018] Beneficial effects

[0019] One of the above technical solutions has the following advantages or beneficial effects:

[0020] 1) By setting multiple crushing layers and reasonably distributing crushing blades in the crushing chamber, the material can be crushed evenly and efficiently. At the same time, the up and down movement of the feeding rod can effectively clear the blockage caused by cement lumps in the feeding channel. It has the characteristics of smooth feeding, good crushing effect, higher overall equipment synergistic clearing and crushing efficiency, and high controllability and uniformity of the fineness of the finished cement particles.

[0021] 2) By arranging the crushing blades in each crushing layer in a manner that gradually decreases in axial direction and axial spacing on the crushing shaft from top to bottom, the cement blocks are crushed layer by layer from large to small. This ensures that there is sufficient space for material to fall in the upper layer of the crushing chamber, and also ensures that each crushing layer has a strong material gripping ability, thereby maintaining a stable and uniform crushing effect. At the same time, it can also improve the energy conversion efficiency of the drive device, reduce energy consumption, and make it more energy-efficient.

[0022] 3) By evenly distributing multiple independently operating material-push rods in the crushing chamber, the material-push operation covers the entire material feeding process and flexibly responds to different blockage conditions, ensuring that the material feeding channel can continuously feed material, thereby improving the overall operating efficiency of the equipment. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a longitudinal side view of Embodiment 1 of the present utility model;

[0025] Figure 2 This is a top view of the structure of Embodiment 1 of the present utility model;

[0026] Figure 3 This is a longitudinal front view of Embodiment 2 of the present invention;

[0027] Figure 4 This is a top view of the structure of Embodiment 2 of the present invention. Figure 1 ;

[0028] Figure 5 This is a top view of the structure of Embodiment 2 of the present invention. Figure 2 ;

[0029] In the figure: crushing chamber 1; crushing device 2; crushing layer 201; crushing shaft 21; crushing blade 22; material feeding rod 3; rod body 31; crushing cone 32; gas channel 33; air blowing port 34; first drive device 4; power source 41; synchronous gear set 42; second drive device 5. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0031] This utility model provides a multi-layer unblocking and crushing device for the bottom of a cement silo, including a crushing chamber 1, a crushing device 2 and a material feeding rod 3. The crushing chamber 1 is connected to the material feeding channel at the bottom of the cement silo (not shown in the attached figure), and the crushing chamber 1 is connected to a discharge pipe (not shown in the attached figure).

[0032] The crushing chamber 1 is rotatably equipped with a crushing device 2, which includes multiple crushing layers 201. The number of crushing layers 201 is determined based on the desired particle fineness and installation space. Each crushing layer 201 includes crushing shafts 21 arranged horizontally side by side. The crushing shafts 21 can be dual shafts or an even number of shafts, with two shafts arranged as a group. Crushing blades 22 are evenly distributed on the crushing shafts 21, and the crushing blades 22 on adjacent crushing shafts 21 within the same crushing layer 201 are arranged alternately.

[0033] The crushing chamber 1 is equipped with a movable material-push rod 3, which penetrates all crushing layers 201. When the material-push rod 3 moves upward, its upper end can extend into the feeding channel. The number of material-push rods 3 is determined according to the cross-sectional size and shape of the feeding channel, and can be a single rod, double rods, or multiple rods. The crushing device 2 is connected to a first driving device 4, and the material-push rod 3 is connected to a second driving device 5.

[0034] The following is a simplified description, taking a double-shaft double-layer structure containing two crushing layers 201 and each crushing shaft 21 including two crushing shafts 21 arranged side by side as an example for specific explanation. However, it should be noted that this utility model is not limited to this structure.

[0035] Example 1

[0036] like Figure 1 and Figure 2 As shown, this utility model provides a multi-layer unblocking and crushing device for the bottom of a cement silo, including a crushing chamber 1, a crushing device 2, and a single material-push rod 3. The crushing device 2 includes two crushing layers 201, each crushing layer 201 having two crushing shafts 21 arranged horizontally side by side, and each crushing shaft 21 having crushing blades 22 evenly distributed on it. The crushing blades 22 in the same crushing layer 201 are staggered. The material-push rod 3 is located at the center of the crushing chamber 1, extending upward through the two crushing layers 201 and positioned between the two crushing shafts 21. Its upper part can move up and down within the crushing chamber 1, and when the material-push rod 3 moves upward, its upper end can penetrate into the material discharge channel to perform material-push operations. Preferably, as... Figure 1 As shown, the structure of the material-push rod 3 can be a combination of rod body 31 and crushing cone 32. The upper part of the crushing cone 32 is cone-shaped to reduce the resistance of the material-push rod 3 moving upward. The rod body 31 is provided with a gas channel 33 that connects to high-pressure gas. The crushing cone 32 is provided with an air blowing port 34 for spraying high-pressure gas to make the crushed cement blocks looser and easier to fall.

[0037] The crushing blades 22 in the upper crushing layer 201 near the material feeding channel have a larger axial and radial spacing, while the crushing blades 22 in the lower crushing layer 201 have a smaller axial and radial spacing compared to the upper layer. Specifically, along the axial direction of the crushing shaft 21, the upper layer's crushing blades 22 are more sparsely spaced, while the lower layer's are more densely packed. Along the radial direction of the crushing shaft 21, the upper layer's crushing blades 22 have a larger modulus, while the lower layer's have a smaller modulus. This spacing arrangement (larger at the top, smaller at the bottom) allows sufficient space to be reserved in the upper layer of the crushing chamber 1 for material feeding and processing of large pieces, avoiding interference with the material feeding channel. Furthermore, the sparser arrangement of the upper crushing blades 22 makes it easier to grasp large pieces of material, effectively maintaining effective material gripping in each layer. This improves the energy conversion efficiency of the drive device, reduces energy consumption, and ultimately achieves layer-by-layer grading crushing, ensuring that the finished particle size meets the preset requirements and is uniform, thus improving the smoothness of cement silo unloading.

[0038] Furthermore, the first drive device 4 connected to the crushing device 2 includes a power source 41 and a synchronous gear set 42. The first drive device 4 is provided with two sets corresponding to the crushing layer 201. The crushing shaft 21 of each crushing layer 201 includes a drive shaft and a driven shaft. The drive shaft is directly connected to the power source 41. The drive shaft and the driven shaft rotate synchronously inward through the synchronous gear set 42 to crush cement blocks, so as to ensure that the crushing force of each crushing layer 201 is transmitted evenly, so as to ensure the uniformity of crushed particles.

[0039] As a feasible implementation, the first drive device 4 connected to the crushing device 2 can be set up in only one set. The crushing shaft 21 in the crushing chamber 1 is divided into one drive shaft and multiple driven shafts. The drive shaft is directly connected to the power source 41, and the driven shaft is connected to the drive shaft or other driven shafts through the synchronous gear set 42 to reduce the number of drive devices and simplify the overall structure of the equipment. It is especially suitable for scenarios where the installation space is relatively limited.

[0040] The power source 41 of the first drive device 4 can be a hydraulic motor or a geared motor, and the second drive device 5 can be a hydraulic cylinder or an electric push rod.

[0041] Example 2

[0042] like Figure 3 , Figure 4 As shown, this embodiment provides a multi-layer unblocking and crushing device for the bottom of a cement silo, which differs from Embodiment 1 in that:

[0043] Multiple material-push rods 3 are provided and are evenly distributed between the crushing shafts 21 so that the material-push action surface of the material-push rods 3 covers the entire material feeding channel, thereby enabling continuous and stable material feeding from the material feeding channel, improving the synergistic operation effect of material-push and crushing, and increasing the efficiency of clearing blockages and crushing.

[0044] Furthermore, the second driving device 5 is independently set corresponding to the material-push rod 3. The second driving device 5 drives a single material-push rod 3 to move up and down independently, so that the material-push rod 3 can move up and down simultaneously, or move up and down alternately, or operate as a single rod, etc., to flexibly deal with different blockages in the material discharge channel, effectively agitate and clear the material, prevent secondary blockages, ensure the maximum material-push effect, and further improve the blockage clearing efficiency.

[0045] As a feasible implementation method, such as Figure 5 As shown, the material-push rods 3 are respectively disposed between the crushing shaft 21 and the side wall of the crushing chamber 1. The material-push rods 3 are evenly distributed relative to the crushing chamber 1 to simplify the avoidance design of the crushing device 2 on the material-push rods 3, reduce the interference of the material-push rods 3 on the crushing device 2, optimize the crushing effect in the crushing chamber 1, and prevent too many large particles of material from passing directly and clogging the discharge pipe.

[0046] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A multi-layer unblocking and crushing device for the bottom of a cement silo, comprising a crushing chamber, a crushing device and a material feeding rod, wherein the upper part of the crushing chamber is connected to a material feeding channel at the bottom of the cement silo, and the crushing chamber is connected to a discharge pipe; Its features are, The crushing chamber is rotatably equipped with a crushing device, which includes multiple crushing layers. Each crushing layer includes a crushing shaft arranged horizontally side by side. Crushing blades are evenly distributed on the crushing shaft, and the crushing blades on adjacent crushing shafts in the same crushing layer are staggered. A material-push rod is movably provided in the crushing chamber. The material-push rod is arranged through all crushing layers. When the material-push rod moves upward, its upper end can extend into the material discharge channel. The crushing device is connected to a first driving device, and the material-push rod is connected to a second driving device.

2. The multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 1, characterized in that: The axial spacing of the crushing blades in each crushing layer on the crushing shaft decreases from top to bottom.

3. The multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 1, characterized in that: The radial spacing of the crushing blades in each crushing layer on the crushing shaft decreases from top to bottom.

4. The multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 1, characterized in that: The material feeding rod is provided as one or more, and the material feeding rod is located at the center of the crushing chamber or evenly distributed between the crushing shafts. The number of material feeding rods is determined according to the cross-sectional size and shape of the material feeding channel.

5. The multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 1, characterized in that: The material-push rod is provided in multiple parts, which are disposed between the crushing shaft and the side wall of the crushing chamber, and are evenly distributed relative to the crushing chamber.

6. A multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 4 or 5, characterized in that: The second driving device is independently set up corresponding to the material-push rod, and the second driving device drives a single material-push rod to move up and down independently.

7. The multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 1, characterized in that: The first driving device includes a power source and a synchronous gear set. The crushing shaft is divided into a driving shaft and a driven shaft. The driving shaft is directly connected to the power source, and the driving shaft and the driven shaft are connected by a synchronous gear set.

8. A multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 7, characterized in that: The first driving device is provided for each crushing layer, and the crushing shaft of each crushing layer includes a driving shaft and a driven shaft.

9. A multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 7, characterized in that: The first driving device is a set, corresponding to the crushing device, and the crushing shaft is divided into one driving shaft and multiple driven shafts.

10. A multi-layer unblocking and crushing device for the bottom of a cement silo according to claim 7, characterized in that: The power source of the first drive device is a hydraulic motor or a geared motor, and the second drive device is a hydraulic cylinder or an electric push rod.

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