Anti-arching cement bin convenient to overhaul

Abstract

The utility model relates to the technical field of cement bins, in particular to an anti-arching cement bin convenient to overhaul, which comprises a cement bin and an arch breaking motor, the cement bin comprises a conical section at the bottom and a plurality of straight sections at the upper part, and the arch breaking motor is mounted on the first straight section, close to the conical section, of the cement bin. The arch breaking motor is connected with the input end of the arch breaking gearbox through the arch breaking transmission rod, the output end of the arch breaking gearbox is connected with the arch breaking blade shaft, and the arch breaking blade shaft is in bolted connection with the arch breaking blades. The arch breaking blades are of a net-shaped structure, so that caked blocks in the cement bin are scattered to prevent arching again while arching of the conical section is broken; the cement block scattering efficiency of the rhombic sections of the arch breaking blades is higher; the cement bin is provided with an inspection manhole, so that the cement bin can be conveniently overhauled from the conical end; the inspection manhole is provided with a door opening limiting sensor to prevent sudden rotation of arch breaking blades when people enter, so that the safety of the people is ensured; the equipment is simple in structure, low in failure rate, low in cost and reliable in structure; the domestic blank is filled and the application field is expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of cement silos, in particular to an anti-arching cement silo which is convenient for maintenance. Background Art

[0002] Cement silos are used to store cement, which is prone to arching when exposed to moisture. This phenomenon is most severe at the conical end of the silo, where arching can affect normal unloading. Therefore, cement silos are often equipped with arch-breaking devices. Currently, arch-breaking devices on the market are mainly categorized as those installed on the silo roof or at the conical end.

[0003] In order to ensure the capacity, the average height of the cement silo is generally twenty meters. The high height leads to safety hazards in the arch-breaking device placed on the silo roof, especially the safety hazards of the pulley installed at the bottom of the silo roof arch-breaking device are more serious. At the same time, the silo roof arch-breaking device needs to extend from the silo roof to the cone end to handle the arch breaking of the cement silo cone. The path is very long. When the arch-breaking motor is placed on the silo roof, it cannot ensure that the end arch-breaking operation is vertically downward, which may easily damage the cement silo body or the resistance is too great to extend. Some methods adopt the method of adding secondary extension or rotating electromechanical parts to the extension rod. At this time, the electromechanical parts are buried in the cement, and cannot effectively dissipate heat, which can easily burn the motor and pollute the cement. The device installed on the silo roof needs to go deep into the cement silo and require an opening on the silo roof. After the silo roof is opened, it cannot be sealed, which will cause water vapor to enter and aggravate the arching phenomenon.

[0004] The arch breaking device installed in the cone section generally adopts an air blowing device or an air cushion arch breaking device. This type of arch breaking has low efficiency and poor arch breaking effect and cannot effectively break up the lumps in the cement silo.

[0005] Therefore, there is an urgent need to design a cement silo that is easy to maintain and has an anti-arching function, so as to solve the problems of low arch breaking efficiency and poor effect of existing cement silos. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a cement silo that is easy to maintain and has an anti-arching function.

[0007] The technical solution adopted by the utility model to solve the technical problem is: an anti-arch cement silo that is easy to maintain, including a cement silo and an arch-breaking motor, the cement silo including a conical section at the bottom and multiple straight sections at the upper part, the arch-breaking motor is installed on the first straight section of the cement silo close to the conical section, the arch-breaking motor is connected to the input end of the arch-breaking gearbox through an arch-breaking transmission rod, the output end of the arch-breaking gearbox is connected to the arch-breaking blade shaft, and the arch-breaking blade shaft is bolted with an arch-breaking blade.

[0008] Specifically, the arch-breaking gear box and the arch-breaking blade shaft are both installed on the center line of the cement silo.

[0009] Specifically, there are three arch-breaking blades in total, and the arch-breaking blades are evenly distributed on the arch-breaking blade axis at an angle of 120°.

[0010] Specifically, each rod of the arch-breaking blade has a diamond-shaped cross section, and the sharp corner of the diamond-shaped cross section points to the direction of rotation.

[0011] Specifically, the arch-breaking blades are of a mesh structure, the grid spacing of the mesh structure is D / 2, and D is the diameter of the cement silo discharge port.

[0012] Specifically, the length of the arch-breaking blade shaft is 1 / 3 of the height of the cement silo cone section, and a space is left for the arch-breaking blade shaft just above the cement silo discharge port.

[0013] Specifically, the cone section of the cement silo is provided with a maintenance manhole, and a manhole sealing door is installed at the maintenance manhole.

[0014] Specifically, a rain cover is installed above the arch-breaking motor, and the rain cover is fixed on the outer wall of the cement silo.

[0015] The utility model has the following beneficial effects:

[0016] The utility model is designed to prevent arching of cement silo which is easy to inspect and maintain. The mesh structure of the arch-breaking blades can break up the arch in the cone section and disperse the lumps inside the cement silo to prevent arching again. The diamond cross-section of the arch-breaking blades can more efficiently disperse cement blocks. The arch-breaking blades leave space just above the cement silo discharge port, which does not affect the normal unloading of the cement silo during operation. The arch-breaking blade shafts leave space just above the cement silo discharge port, which does not affect the normal unloading of the cement silo during operation. The cement silo is provided with an inspection manhole, which is convenient for entering the cement silo at the cone end for inspection and maintenance. The inspection manhole is provided with a door opening limit sensor to prevent the arch-breaking blades from suddenly rotating when people enter, thereby ensuring the safety of people. The arch-breaking blades are bolted and can be easily disassembled and replaced after wear. The equipment has a simple structure, low failure rate, low cost and reliable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an anti-arching cement silo that is easy to inspect and maintain.

[0018] Figure 2 Is the broken arch blade in Figure 1 Cross-sectional view along the AA axis.

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle B-direction arch-breaking blade.

[0020] As shown in the figure: 1-cement silo; 2-arch breaking motor; 3-arch breaking transmission rod; 4-arch breaking gear box; 5-arch breaking blade shaft; 6-arch breaking blade; 7-maintenance manhole; 8-rain cover. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely further describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 3 As shown, a cement silo with anti-arching function that is easy to maintain includes a cement silo 1, an arch-breaking motor 2, an arch-breaking transmission rod 3, an arch-breaking gear box 4, an arch-breaking blade shaft 5, an arch-breaking blade 6, a maintenance manhole 7, and a rain cover 8.

[0023] An arch-breaking motor 2 is installed on the first straight section of the cement silo 1 close to the cone section. The arch-breaking motor 2 is connected to the arch-breaking gear box 4 installed on the center line of the cement silo 1 through the arch-breaking transmission rod 3. An arch-breaking blade shaft 5 is installed below the arch-breaking size box 4, and an arch-breaking blade 6 is bolted to the arch-breaking blade shaft 5.

[0024] The tapered section of the cement silo 1 is provided with an inspection manhole 7 , and the straight section of the cement silo 1 is provided with a rainproof cover 8 above the arch-breaking motor 2 .

[0025] There are three arch-breaking blades 6, and the included angle of the arch-breaking blades 6 is evenly distributed at 120°; each rod of the arch-breaking blades 6 has a diamond cross-section, and the sharp corner of the diamond cross-section points in the direction of rotation; the arch-breaking blades 6 have a mesh structure, and the grid spacing is D / 2, where D is the diameter of the cement silo discharge port; the arch-breaking blades 6 are irregular in shape, leaving space directly above the discharge port of the cement silo 1.

[0026] The length of the arch-breaking blade shaft 5 is 1 / 3 of the height of the cone end, leaving space just above the material opening of the cement silo 1; a door opening limit sensor is installed at the manhole sealing door of the inspection manhole 7.

[0027] During use, the operator finds that there is material in the cement silo 1 at the operating terminal, and opens the cement silo unloading port, but the cement silo unloads slowly or does not unload, and starts the arch breaking motor 2, drives the arch breaking blade shaft 5 and the arch breaking blade 6 to rotate through the arch breaking transmission rod 3 and the arch breaking gear box 4, and breaks up the lumps inside the cone end of the cement silo 1. After the cement silo 1 is unloaded normally, the arch breaking motor 2 is turned off.

[0028] When it is necessary to enter the cone of cement silo 1 for maintenance, the maintenance manhole 7 is opened. At this time, the system detects the door opening limit sensor signal of the maintenance manhole 7, locks the arch breaking motor 2 and the screw conveyor configured for cement silo 1, and places a protective cover inside the cement silo 1 after the personnel enter through the maintenance manhole 7 to prevent cement from falling and injuring the staff. After the maintenance is completed, exit the cement silo 1 and close the maintenance manhole 7. At this time, the system detects the door opening limit sensor signal of the maintenance manhole 7, releases the lock of the arch breaking motor 2 and the screw conveyor configured for cement silo 1, and completes the maintenance task.

[0029] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention.

[0030] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

[0031] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement silo with an anti-arching feature that is easy to maintain, characterized in that: It includes a cement silo and an arch-breaking motor. The cement silo includes a conical section at the bottom and multiple straight sections at the top. The arch-breaking motor is installed on the first straight section of the cement silo close to the conical section. The arch-breaking motor is connected to the input end of the arch-breaking gearbox through an arch-breaking transmission rod. The output end of the arch-breaking gearbox is connected to the arch-breaking blade shaft. The arch-breaking blade shaft is bolted with an arch-breaking blade.

2. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: The arch-breaking gear box and the arch-breaking blade shaft are both installed on the center line of the cement silo.

3. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: There are three arch-breaking blades in total, and the arch-breaking blades are evenly distributed on the arch-breaking blade axis at an angle of 120 degrees.

4. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: Each rod of the arch-breaking blade has a diamond-shaped cross section, and the sharp corner of the diamond-shaped cross section points to the direction of rotation.

5. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: The arch-breaking blades are of a mesh structure, the grid spacing of the mesh structure is D / 2, and D is the diameter of the cement silo discharge port.

6. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: The length of the arch-breaking blade shaft is 1 / 3 of the height of the cement silo cone section, and a space is left for the arch-breaking blade shaft just above the cement silo discharge port.

7. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: The cone section of the cement silo is provided with a maintenance manhole, and a manhole sealing door is installed at the maintenance manhole.

8. The anti-arching cement silo that is easy to maintain according to claim 1 is characterized in that: A rainproof cover is arranged above the arch-breaking motor and is fixed on the outer wall of the cement silo.

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