Layered detection purging pneumatic flow aiding type bin cleaning device

Abstract

The utility model belongs to the technical field of material storage, and particularly provides a layered detection purging pneumatic flow aiding type bin cleaning device which comprises a bin, a bin cleaning purging assembly and a material sensing element. The stock bin is provided with a plurality of working areas in a stacked mode in the height direction. The bin cleaning and purging assemblies are arranged in the stock bin, and at least one bin cleaning and purging assembly is arranged in each working area; the material sensing elements are installed in the stock bin, and at least one material sensing element is arranged in each working area. According to the method, the stock bin is divided into a plurality of working areas in the height direction of the stock bin, and at least one bin cleaning and purging assembly and one material sensing element are arranged in each working area; when the material sensing element in a certain working area detects arching and material suspending, only the bin cleaning and purging assembly in the working area needs to be started, idle work of the bin cleaning and purging assemblies in other working areas is avoided, energy is saved, and the bin cleaning effect and the bin cleaning efficiency are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of material storage, and more specifically, to a stratified detection and purge pneumatic flow-assisted warehouse clearing device. Background Art

[0002] In daily production, due to production process and other reasons, materials need to be proportioned, mixed and stored, and generally there will be a silo. When the silo is unloading, the flow rate is generally faster in the center (we call it the flowing layer), while the flow rate on both sides near the silo wall is slower. The combined force formed by the internal pressure of the materials on both sides of the silo wall and the reaction force of the silo wall forms a retention layer and a bonding layer at the half-top angle of the silo. Especially in the transition section and contraction section of the silo, due to pressure, material moisture or high air humidity, the material will form arches and bridges. If the material stays in the retention layer and the bonding layer for a long time and is not handled in time, it will form a blockage, which will cause feeder failure, coal mill failure and other failures, affecting normal production and even causing safety accidents.

[0003] The existing silo cleaning methods mainly rely on manual cleaning, which is time-consuming, labor-intensive and has potential safety hazards. Other silo cleaning methods such as air cannons, vibrators, loosening machines, etc. have problems such as low cleaning efficiency, large wear and tear, and high maintenance costs.

[0004] Of course, there are also special cleaning equipment in the prior art, for example: a high-pressure pneumatic flow-assisted warehouse cleaning equipment and warehouse cleaning method, which mainly includes a controller, an air compressor, a pipeline system, a liquid pressure pump station, valve components, etc. Although the warehouse cleaning equipment in the prior art improves the warehouse cleaning efficiency, the warehouse cleaning machine cannot accurately determine the material arching and hanging material positions when in use, resulting in the bottom layer of the warehouse working unit doing useless work, which in turn leads to insufficient water and gas pressure in the water supply and air supply pipelines required by the working unit at the arching and hanging material position, which will result in the actual water supply and air supply being unable to meet the warehouse cleaning needs, resulting in unsatisfactory warehouse cleaning effects. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a layered detection and purge pneumatic flow-assisted warehouse clearing device to solve the technical problem of poor warehouse clearing effect in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a layered detection and purge pneumatic flow-assisted clearing device, including a silo, a clearing and purge component, and a material sensing element; the silo is provided with a plurality of working areas stacked along the height direction; the clearing and purge component is in the silo, and at least one clearing and purge component is arranged in each working area; the material sensing element is installed in the silo, and at least one material sensing element is arranged in each working area.

[0007] Optionally, the material sensing element comprises a rotary paddle type material level switch.

[0008] Optionally, the rotary paddle level switch includes a rotating drive, a sensing blade and a detection element; the rotating drive is mounted on the silo; the sensing blade is connected to the output shaft of the rotating drive; the detection element is electrically connected to the output shaft of the rotating drive for detecting whether the sensing blade is rotating.

[0009] Optionally, the warehouse clearing device further comprises a camera, which is installed in the silo, and at least one camera is arranged in each working area, and the camera is used to capture the scene in the silo in real time.

[0010] Optionally, the warehouse clearing device further includes an operation screen, and the operation screen is electrically connected to the camera.

[0011] Optionally, the bin clearing device further comprises a control unit, and the control unit is electrically connected to the material sensing element and the bin clearing and purge assembly respectively.

[0012] Optionally, the bin cleaning and blowing assembly includes a blowing unit; the blowing unit includes an air source, an air pipe and an air nozzle; one end of the air pipe is connected to the air source, and the other end of the air pipe extends into the silo and is connected to the air nozzle.

[0013] Optionally, the blowing unit further includes an air storage tank, one end of which is connected to the air source, and the other end of which is connected to the air pipe.

[0014] Optionally, the bin cleaning and blowing assembly further includes a water spray unit; the water spray unit includes a water tank, a water pipe and a nozzle; one end of the water pipe is connected to the water tank, and the other end of the water pipe extends into the silo and is connected to the nozzle.

[0015] Optionally, the bin cleaning device further comprises a sealing member, and the sealing member is installed at the connection between the bin cleaning and purge assembly and the silo.

[0016] The beneficial effects of the layered detection and purge pneumatic flow-assisted clearing device provided in the present application are: compared with the prior art, in the present application, the silo is divided into multiple working areas along its height direction, and at least one clearing and purge component and a material sensing element are arranged in each working area; when the material sensing element in a certain working area detects arched suspended material, only the clearing and purge component in the working area needs to be started, thereby avoiding useless work of the clearing and purge components in other working areas, saving energy, and improving the clearing effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A schematic diagram of the cross-sectional structure of a layered detection and purge pneumatic flow-assisted warehouse clearing device provided in an embodiment of the present application.

[0019] Among them, the reference numerals in the figure are:

[0020] 100- Silo;

[0021] 200-clearance and purge assembly;

[0022] 201-first cleaning and purge assembly;

[0023] 202-second cleaning and purge assembly;

[0024] 203-third clearing and purge assembly;

[0025] 300-Material sensing element;

[0026] 301-first material sensing element;

[0027] 302- second material sensing element;

[0028] 303 - the third material sensing element. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] See also Figure 1 The stratified detection and purge pneumatic flow-assisted warehouse clearing device provided in the embodiment of the present application is now described. The stratified detection and purge pneumatic flow-assisted warehouse clearing device comprises a silo 100, a warehouse clearing and purge assembly 200, and a material sensing element 300; the silo 100 is provided with a plurality of working areas stacked along the height direction; the warehouse clearing and purge assembly 200 is in the silo 100, and at least one warehouse clearing and purge assembly 200 is provided in each working area; the material sensing element 300 is installed in the silo 100, and at least one material sensing element 300 is provided in each working area.

[0034] Compared with the prior art, the layered detection and purge pneumatic flow-assisted warehouse cleaning device provided in the embodiment of the present application divides the silo 100 into a plurality of working areas along its height direction, and at least one warehouse cleaning and purge component 200 and a material sensing element 300 are provided in each working area; when the material sensing element 300 in a certain working area detects arched suspended material, only the warehouse cleaning and purge component 200 in the working area needs to be started, thereby avoiding useless work of the warehouse cleaning and purge components 200 in other working areas, saving energy, and improving the warehouse cleaning effect and efficiency.

[0035] In one embodiment of the present application, the material sensing element 300 includes a rotary paddle type material level switch.

[0036] In this embodiment, by providing a rotary paddle type material level switch, it is possible to more accurately determine whether there is material arching or suspended material in the working area where the material sensing element 300 is located.

[0037] In one embodiment of the present application, the rotary paddle level switch includes a rotating drive, a sensing blade and a detection element; the rotating drive is installed on the silo 100; the sensing blade is connected to the output shaft of the rotating drive; the detection element is electrically connected to the output shaft of the rotating drive for detecting whether the sensing blade is rotating.

[0038] In this embodiment, the working principle of the rotary paddle level switch is as follows:

[0039] The rotating drive member drives the sensing blade to rotate. When the material is suspended and arched to the position of the sensing blade, the rotation of the sensing blade is blocked, and the detection element generates a rotation displacement around the output shaft of the rotating drive member. It can be understood that the rotary level switch also includes two micro switches. The rotation displacement of the detection element first activates one micro switch to send a signal that there is a material hanging arch; then the other micro switch is activated to cut off the power supply of the rotating drive member to stop it from rotating. As long as the material hanging arch state exists, this state will continue.

[0040] When the material hanging arch is cleared and the sensing blade is no longer blocked, the detection unit will return to its original state by the spring tension. First, a micro switch is activated to connect the power of the rotating drive to make it rotate. Then another micro switch is activated to send out a no-material signal. As long as there is no material blocking the rotation of the sensing blade, this state will continue.

[0041] In one embodiment of the present application, the warehouse cleaning device further includes a camera (not shown), which is installed in the silo 100 . At least one camera is provided in each working area, and the camera is used to capture the image in the silo 100 in real time.

[0042] In one embodiment of the present application, the warehouse clearing device further includes an operating screen (not shown), and the operating screen is electrically connected to the camera.

[0043] In this embodiment, by providing an operation screen, the image captured by the camera can be presented intuitively, and on-site operators can more effectively determine the actual position of the material in the silo 100 through the image.

[0044] In one embodiment of the present application, the bin clearing device further includes a control unit (not shown), and the control unit is electrically connected to the material sensing element 300 and the bin clearing and purge assembly 200 respectively.

[0045] In this embodiment, by setting a control unit, the start and stop of the material sensing element 300 and the bin cleaning and purge assembly 200 can be controlled respectively. When the material sensing element 300 detects that the material is suspended and arched, the material sensing element 300 transmits the signal to the control unit, and the control unit controls the bin cleaning and purge assembly 200 corresponding to the material sensing element 300 to start. Specifically, the control unit can adopt a PLC (Programmable Logic Controller).

[0046] In one embodiment of the present application, the bin cleaning and blowing assembly 200 includes a blowing unit (not shown); the blowing unit includes an air source, an air pipe and an air nozzle; one end of the air pipe is connected to the air source, and the other end of the air pipe extends into the silo 100 and is connected to the air nozzle.

[0047] In this embodiment, by providing an air blowing unit, the materials adhering to the inner wall of the silo 100 can be blown away, thereby improving the efficiency of clearing the silo. The air source can be a high-pressure air source, such as a high-pressure air pump.

[0048] In one embodiment of the present application, the blowing unit further includes an air storage tank (not shown), one end of the air storage tank is connected to the air source, and the other end of the air storage tank is connected to the air pipe.

[0049] In this embodiment, by providing a gas storage tank, high-pressure gas can be stored, avoiding frequent startup of the high-pressure gas pump, saving energy consumption, and extending the service life of the equipment.

[0050] In one embodiment of the present application, the bin cleaning and blowing assembly 200 also includes a water spray unit (not shown); the water spray unit includes a water tank, a water pipe and a nozzle; one end of the water pipe is connected to the water tank, and the other end of the water pipe extends into the silo 100 and is connected to the nozzle.

[0051] In this embodiment, by providing a water spray unit in combination with an air blowing unit, the warehouse cleaning efficiency can be further improved. The water spray unit and the air blowing unit can be started at the same time, or the water spray unit and the air blowing unit can be started in sequence in a cycle.

[0052] In one embodiment of the present application, the bin cleaning device further includes a seal (not shown), which is installed at the connection between the bin cleaning and purge assembly 200 and the silo 100 .

[0053] In this embodiment, by providing a sealing member, the airtightness of the silo 100 can be improved, thereby improving the silo cleaning effect of the silo cleaning and blowing assembly 200 .

[0054] In this embodiment, three bin cleaning and purge components 200 and three material sensing elements 300 are provided as an example. Figure 1At this time, the bin cleaning and purge assembly 200 includes a first bin cleaning and purge assembly 201, a second bin cleaning and purge assembly 202 and a third bin cleaning and purge assembly 203 which are sequentially arranged from bottom to top along the height direction of the silo 100; the material sensing element 300 includes a first material sensing element 301, a second material sensing element 302 and a third material sensing element 303 which are sequentially arranged from bottom to top along the height direction of the silo 100.

[0055] When material hanging and arching occurs in the silo 100, the on-site operator only needs to press a button on the operation interface of the operation screen to detect and clear the silo, and then the first material sensing element 301, the second material sensing element 302 and the third material sensing element 303 start to rotate. When it is found that the sensing blade of the first material sensing element 301 rotates unimpeded, it means that there is no material hanging arch in the working area where the first material sensing element 301 is located; and the sensing blades of the second material sensing element 302 and the third material sensing element 303 are hindered from rotating, it means that there is material hanging arch in the working area.

[0056] When the rotation of the sensing blades of the second material sensing element 302 and the third material sensing element 303 is blocked, the material information will be transmitted to the control unit, and the control unit will start the second cleaning and blowing components 202 and the third cleaning and blowing components 203 in the corresponding working area to perform high-pressure pneumatic cleaning and blowing. Since there is no material hanging arch in the working area where the first material sensing element 301 is located, the corresponding first cleaning and blowing components 201 will not be started, reducing energy waste.

[0057] In this embodiment, the working detection time of the first material sensing element 301, the second material sensing element 302 and the third material sensing element 303 does not exceed five seconds. At the same time, after the control unit receives the material blockage signal, the second cleaning and purge component 202 and the third cleaning and purge component 203 will immediately execute the blocked material clearing instruction. The entire cleaning start-up process does not exceed ten seconds, which greatly improves work efficiency.

[0058] Since the flow rate is generally faster in the center of the silo 100 (called the flow layer) when unloading, and slower near the inner wall of the silo 100 on both sides, the combined force formed by the internal pressure of the materials on both sides of the inner wall of the silo 100 and the reaction force of the inner wall of the silo 100 forms a retention layer and a bonding layer at the half top angle of the silo 100. In particular, the transition section and the contraction section of the silo 100 will cause arching and bridging of materials due to pressure, material moisture or high air humidity. Usually, when the silo 100 is unloading normally on site, the silo 100 has actually been stuck and bonded.

[0059] Therefore, when there is no staff on site to operate the equipment, the first material sensing element 301, the second material sensing element 302 and the third material sensing element 303 can be set to start detection every half an hour through the program setting of the control unit. At the same time, the real-time picture in the silo 100 can also be displayed on the operation screen to determine the real material level in the silo 100, and immediately determine to start the first silo cleaning and purge component 201, the second silo cleaning and purge component 202 or the third silo cleaning and purge component 203 to perform high-pressure pneumatic silo cleaning and purge on the silo 100. The formation of material hanging arches can be prevented more timely.

[0060] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A layered detection and purge pneumatic flow-assisted warehouse clearing device, characterized in that: include: A silo, wherein the silo is stacked with a plurality of working areas along the height direction; A bin cleaning and purge assembly, wherein the bin cleaning and purge assembly is in the silo, and at least one bin cleaning and purge assembly is disposed in each working area; as well as A material sensing element is installed in the silo, and at least one material sensing element is provided in each working area.

2. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 1 is characterized in that: The material sensing element comprises a rotary paddle type material level switch.

3. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 2 is characterized in that: The rotary paddle level switch comprises: A rotary drive member, the rotary drive member being mounted on the silo; an induction blade connected to an output shaft of the rotary drive member; and A detection element is electrically connected to the output shaft of the rotary drive member and is used to detect whether the induction blade is rotating.

4. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 1, characterized in that: The warehouse clearing device also includes a camera, which is installed in the silo. At least one camera is arranged in each working area, and the camera is used to take real-time pictures of the interior of the silo.

5. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 4 is characterized in that: The warehouse clearing device also includes an operation screen, and the operation screen is electrically connected to the camera.

6. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 1, characterized in that: The bin clearing device further comprises a control unit, which is electrically connected to the material sensing element and the bin clearing and blowing assembly respectively.

7. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 1, characterized in that: The bin cleaning and blowing assembly includes a blowing unit; the blowing unit includes an air source, an air pipe and an air nozzle; one end of the air pipe is connected to the air source, and the other end of the air pipe extends into the silo and is connected to the air nozzle.

8. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 7 is characterized in that: The blowing unit further comprises an air storage tank, one end of which is connected to the air source, and the other end of which is connected to the air pipe.

9. The pneumatically assisted warehouse clearing device for layered detection and purge according to claim 7, characterized in that: The bin cleaning and blowing assembly also includes a water spray unit; the water spray unit includes a water tank, a water pipe and a nozzle; one end of the water pipe is connected to the water tank, and the other end of the water pipe extends into the silo and is connected to the nozzle.

10. The pneumatically assisted warehouse clearing device for layered detection and purge according to any one of claims 1 to 9, characterized in that: The bin cleaning device further comprises a sealing member, which is installed at the connection between the bin cleaning and blowing assembly and the silo.

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