Device for preventing arching of raw coal bunker and silo

Abstract

The invention relates to the technical field of bulk material transportation and storage, in particular to a device for preventing arching of a raw coal bunker and a silo, which comprises a bearing assembly, an inner protective cover, an outer protective cover arranged at one end of the inner protective cover, a driving assembly and a motor arranged at one end of the inner protective cover, the bearing assembly further comprises a fixing disc arranged at one end of the inner protective cover, first threaded grooves are formed in the inner side of the fixing disc, the first threaded grooves are formed in the fixing disc in a circumferential array mode, first bolts are arranged in the first threaded grooves, the fixing disc is in a circular ring shape, and the middle of the fixing disc is in a cavity shape. After being decelerated by the speed reducer, the coal is transmitted to the arch breaking assembly, the arch breaking assembly rotates and moves forwards, and accumulated coal adhered to the inner wall of the raw coal bunker is cleaned through the arch breaking assembly.

Description

Technical Field

[0001] The invention relates to the technical field of transportation and storage of loose materials, in particular to a device for preventing raw coal bunkers and silos from arching. Background Art

[0002] Raw coal bins and silos are storage devices for loose materials and are widely used in the power, chemical, steel, cement, port and mining industries. The arching problem of raw coal bins and silos caused by the stickiness of loose materials is very prominent. The long-term accumulation of materials caused by this leads to safety problems such as spontaneous combustion and explosion. The problem of reduced silo volume caused by material accumulation seriously restricts safe production.

[0003] At present, the main ways to solve the arch formation in raw coal bins and silos are: air cannons, vibrating devices and manual cleaning. The air cannons and vibrating devices cannot be effectively cleaned because the wet and sticky materials stick to the walls of the raw coal bins and silos. The manual cleaning method requires the equipment to be shut down and the cleaning personnel to enter the raw coal bins and silos for cleaning. The construction period is long and the cleaning workload is large, and there is a risk of poisoning, suffocation, and collapse and burying the cleaning personnel. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a device for preventing raw coal bunkers and silos from arching, comprising a bearing assembly including an inner shield and an outer shield arranged at one end of the inner shield; and

[0006] The driving assembly includes a motor arranged at one end of the inner shield.

[0007] As a preferred solution of the device for preventing arching of raw coal bins and silos described in the present invention, the bearing assembly also includes a fixed plate arranged at one end of the inner protective cover, the inner side of the fixed plate has a first thread groove, the first thread groove is arranged in a circular array in the fixed plate, and a first bolt is arranged in the first thread groove.

[0008] As a preferred solution of the device for preventing arching of raw coal bunkers and silos of the present invention, the fixing disk is in a circular ring shape, and the middle part of the fixing disk is in a cavity shape.

[0009] As a preferred solution of the device for preventing arching of raw coal bunkers and silos of the present invention, the driving assembly further includes a motor arranged at one end of the reducer, and a connecting shaft is arranged at one end of the motor.

[0010] As a preferred solution of the device for preventing arching of raw coal bunkers and silos of the present invention, the connecting shaft is arranged inside the reducer.

[0011] As a preferred solution of the device for preventing arch formation in raw coal bins and silos described in the present invention, it also includes a fixing assembly, which includes a connecting plate arranged at one end of the outer protective cover, a second thread groove is arranged on the inner side of the connecting plate, a circular array of the second thread groove is arranged in the connecting plate, a second bolt is arranged in the second thread groove, and a connecting plate is provided at one end of the connecting plate.

[0012] As a preferred solution of the device for preventing arch formation in raw coal bins and silos according to the present invention, it also includes an arch breaking assembly, which includes a connecting rod arranged on the inner side of a connecting plate, a spiral groove is opened on the outer side of the connecting rod, and an arch breaking piece is arranged on the outer side of the connecting rod.

[0013] As a preferred solution of the device for preventing arch formation in raw coal bins and silos according to the present invention, it also includes a cleaning component, which includes a tooth groove arranged at one end of the outer protective cover, a third thread groove is opened on the inner side of the tooth groove, and a circular array of the third thread groove is arranged on the inner side of the tooth groove.

[0014] As a preferred solution of the device for preventing arching of raw coal bunkers and silos of the present invention, a fixing ring is provided at one end of the tooth groove, and a dust cleaning plate is provided at one end of the fixing ring.

[0015] As a preferred solution of the device for preventing arch formation in raw coal bins and silos described in the present invention, it also includes a limit assembly, which includes a first limit switch arranged at one end of the outer protective cover, a first pulley is arranged below the first limit switch, a second limit switch is arranged at the other end of the outer protective cover, and a second pulley is arranged below the second limit switch.

[0016] The beneficial effects of the present invention are as follows: the motor is driven, the speed is reduced by the reducer and then transmitted to the arch breaking component, the arch breaking component rotates and moves forward, and the accumulated coal adhering to the inner wall of the raw coal bin is cleaned off by the arch breaking component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 It is an overall diagram of the present invention.

[0019] Figure 2 This is a diagram showing the bearing assembly of the present invention.

[0020] Figure 3 This is a diagram showing the fixing components in the present invention.

[0021] Figure 4 This is a diagram showing the dust cleaning component of the present invention.

[0022] Figure numbers: 100, bearing assembly; 101, inner shield; 101a, fixed plate; 102, outer shield; 200, driving assembly; 201, motor; 201a, connecting shaft; 202, reducer; 300, fixing assembly; 301, connecting plate; 302, connecting plate; 400, arch breaking assembly; 401, connecting rod; 401a, screw rod; 402, arch breaking piece; 500, cleaning assembly; 501, fixing ring; 501a, cleaning plate; 502, tooth groove; 600, limit assembly; 601, first limit switch; 602, second limit switch. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1, reference Figures 1 to 4 , which is the first embodiment of the present invention, provides a device for preventing arching of raw coal bunkers and silos, which includes a bearing assembly 100, including an inner shield 101 and an outer shield 102 arranged at one end of the inner shield 101; and,

[0027] The driving assembly 200 includes a motor 201 disposed at one end of the inner shield 101 .

[0028] The bearing assembly 100 further includes a fixing plate 101a disposed at one end of the inner shield 101. A first thread groove is disposed on the inner side of the fixing plate 101a. A circumferential array of the first thread groove is disposed in the fixing plate 101a. A first bolt is disposed in the first thread groove.

[0029] The fixing disk 101a is in a ring shape, and the middle of the fixing disk 101a is in a cavity shape.

[0030] The driving assembly 200 further includes a motor 201 disposed at one end of the reducer 202 , and a connecting shaft 201 a is disposed at one end of the motor 201 .

[0031] The connecting shaft 201 a is disposed inside the speed reducer 202 .

[0032] The forward and backward movement of the connecting rod 401 is realized by the reducer 202 and the limit assembly 600 installed on the outer shield 102, which can effectively avoid equipment jamming, excessive torque and damage.

[0033] Usage process: When the volume of sticky coal on the inner wall of the raw coal bin becomes large enough, the subsequent coal will accumulate on it and cannot fall off, thus forming an arch phenomenon. When the raw coal bin is arched, start the motor 201, which is decelerated by the reducer 202 and then transmitted to the arch breaking component 400. The arch breaking component 400 rotates and moves forward, and the accumulated coal stuck to the inner wall of the raw coal bin is cleaned off by the arch breaking component 400.

[0034] Example 2, reference Figures 1 to 4 , which is the second embodiment of the present invention, and this embodiment provides a device for preventing arching of raw coal bins and silos, which also includes a fixing assembly 300, and the fixing assembly 300 includes a connecting plate 301 arranged at one end of the outer protective cover 102, and a second thread groove is arranged on the inner side of the connecting plate 301, and a second thread groove is arranged in a circular array in the connecting plate 301, and a second bolt is arranged in the second thread groove, and a connecting plate 302 is provided at one end of the connecting plate 301.

[0035] The invention also includes an arch breaking assembly 400 , which includes a connecting rod 401 arranged inside the connecting disk 301 , a spiral groove is formed on the outside of the connecting rod 401 , and an arch breaking member 402 is provided on the outside of the connecting rod 401 .

[0036] Usage process: When the motor 201 is started, the motor 201 will drive the connecting shaft 201a to rotate, and the connecting shaft 201a will drive the arch breaking component 400, and be decelerated by the reducer 202. The connecting rod 401 on the arch breaking component 400 rotates and moves forward, and the arch breaking part 402 at the front end of the connecting rod 401 cleans up the accumulated coal stuck to the inner wall of the raw coal bin.

[0037] Example 3, reference Figures 1 to 4 , which is the third embodiment of the present invention, and this embodiment provides a device for preventing arching of raw coal bins and silos, which also includes a cleaning component 500, the cleaning component 500 includes a tooth groove 502 arranged at one end of the outer protective cover 102, the inner side of the tooth groove 502 is provided with a third thread groove, and the third thread groove circular array is arranged on the inner side of the tooth groove 502.

[0038] A fixing ring 501 is provided at one end of the tooth groove 502 , and a dust cleaning plate 501 a is provided at one end of the fixing ring 501 .

[0039] It also includes a limit assembly 600, which includes a first limit switch 601 arranged at one end of the outer shield 102, a first pulley is arranged below the first limit switch 601, and a second limit switch 602 is arranged at the other end of the outer shield 102, and a second pulley is arranged below the second limit switch 602.

[0040] When the connecting rod 401 moves, the connecting rod 401 will contact the upper 501, which can effectively remove the coal and other debris stuck in the screw rod 401a and prevent the connecting rod 401 from getting stuck.

[0041] Usage process: When the tail end of the arch breaking component 400 touches the connecting rod 401 and the second limit switch 602 on the left, the connecting rod 401 and the second limit switch 602 will be activated, and the motor 201 will be controlled to stop rotating through the connected cable, and the motor 201 will be reversed. After the connecting rod 401 reverses, the arch breaking component 400 retracts, thereby effectively preventing the impact of materials such as coal and protecting the arch breaking device.

[0042] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0043] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0044] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for preventing raw coal bunkers and silos from arching, characterized in that: include, A bearing assembly (100) comprises an inner shield (101) and an outer shield (102) arranged at one end of the inner shield (101); and The driving assembly (200) comprises a motor (201) arranged at one end of the inner shield (101).

2. The device for preventing arching of raw coal bunkers and silos as claimed in claim 1, characterized in that: The bearing assembly (100) further comprises a fixing plate (101a) arranged at one end of the inner shield (101), the fixing plate (101a) having a first thread groove on its inner side, a circumferential array of the first thread grooves being arranged in the fixing plate (101a), and a first bolt being arranged in the first thread groove.

3. The device for preventing arching of raw coal bunkers and silos as claimed in claim 2, characterized in that: The fixing disk (101a) is in a circular ring shape, and the middle portion of the fixing disk (101a) is in a cavity shape.

4. The device for preventing arching of raw coal bunkers and silos as claimed in claim 3, characterized in that: The driving assembly (200) further comprises a motor (201) arranged at one end of the reducer (202), and a connecting shaft (201a) is arranged at one end of the motor (201).

5. The device for preventing arching of raw coal bunkers and silos as claimed in claim 4, characterized in that: The connecting shaft (201a) is arranged inside the reducer (202).

6. The device for preventing arching of raw coal bunkers and silos as claimed in claim 5, characterized in that: The invention also comprises a fixing assembly (300), wherein the fixing assembly (300) comprises a connecting plate (301) arranged at one end of the outer shield (102), a second thread groove is arranged on the inner side of the connecting plate (301), a circumferential array of the second thread groove is arranged in the connecting plate (301), a second bolt is arranged in the second thread groove, and a connecting plate (302) is arranged at one end of the connecting plate (301).

7. The device for preventing arching of raw coal bunkers and silos as claimed in claim 6, characterized in that: It also includes an arch-breaking component (400), which includes a connecting rod (401) arranged on the inner side of the connecting plate (301), a spiral groove is provided on the outer side of the connecting rod (401), and an arch-breaking member (402) is provided on the outer side of the connecting rod (401).

8. The device for preventing arching of raw coal bunkers and silos as claimed in claim 7, characterized in that: It also includes a cleaning component (500), which includes a tooth groove (502) arranged at one end of the outer shield (102), a third thread groove is opened on the inner side of the tooth groove (502), and a circular array of the third thread groove is arranged on the inner side of the tooth groove (502).

9. The device for preventing arching of raw coal bunkers and silos as claimed in claim 8, characterized in that: A fixing ring (501) is provided at one end of the tooth groove (502), and a dust cleaning plate (501a) is provided at one end of the fixing ring (501).

10. The device for preventing arching of raw coal bunkers and silos as claimed in claim 9, characterized in that: The invention also includes a limit assembly (600), wherein the limit assembly (600) includes a first limit switch (601) arranged at one end of the outer shield (102), a first pulley is arranged below the first limit switch (601), a second limit switch (602) is arranged at the other end of the outer shield (102), and a second pulley is arranged below the second limit switch (602).

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