Method and device for judging clogging of euroricette draw tube based on rfid tagging

Abstract

The application relates to a kind of based on RFID check-in Euro bin material falling pipe jamming judgment method and device, device includes winch mechanism and multiple telescopic material falling pipes, multiple telescopic material falling pipes one end is located on the winch mechanism, the other end is connected to the top of Euro bin, still includes upright pole, check-in machine and multiple check-in chips, each check-in chip is respectively installed on the edge of each section of multiple telescopic material falling pipes, upright pole is located above winch mechanism, with multiple telescopic material falling pipes same direction setting, check-in machine is located at the top of upright pole;When multiple telescopic material falling pipes are completely contracted, each check-in chip is located within the receiving range of check-in machine, when the extension amount of each section of multiple telescopic material falling pipes reaches the corresponding threshold value of the section, check-in machine loses the signal of corresponding check-in chip.Compared with prior art, the application has the advantages of timely finding the problem of Euro bin telescopic material falling pipe jamming, reducing the damage and deformation of telescopic material falling pipe caused by jamming, improving safety benefits and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of radio frequency identification technology, in particular to a Euro bin unloading pipe jamming judgment method and device based on RFID check-in. BACKGROUND

[0002] The Euro bin is a kind of closed storage system similar to the silo, which can store non-free flowing solid bulk materials with large storage demand. Due to its design structure that the internal material cannot flow freely, the stability of feeding and discharging of viscous materials such as desulfurized gypsum or limestone powder and the like is ensured.

[0003] In the prior art, solid materials are accumulated and stored in horizontal layers, the materials enter from the top of the silo, fall down through the telescopic unloading pipe, and are distributed to each part of the unloading layer by the spiral conveyor suspended and controlled by the rotary stack bridge. The telescopic unloading pipe is connected by several concentrically nested pipes with different diameters from top to bottom. The diameter of the pipe decreases from top to bottom. In this way, the upper pipe can be inserted into the adjacent lower pipe, and all pipes can be inserted into the lowermost pipe, which is called the shrinkage state.

[0004] The Euro bin is often used to store materials such as limestone and bituminous coal. These materials have a high proportion of powdery particles, and have high volatile matter, moisture and viscosity. Coal dust and water vapor mixed together can adhere to the wall of the central telescopic unloading pipe. These adhered materials can affect the normal sliding of the central telescopic unloading pipe when it is stretched or shrunk. Sometimes, the adjacent two pipes will suddenly stretch and slide down under the action of gravity, causing a large impact load, which can cause pipe deformation, limit connection ring damage and other failures, seriously affecting the safe and stable operation of the material conveying system and the service life of the mechanical equipment inside the Euro bin system. SUMMARY

[0005] The purpose of the present application is to overcome the defect that the existing technology cannot timely find the unloading pipe jamming, and to provide a Euro bin unloading pipe jamming judgment method and device based on RFID check-in.

[0006] The purpose of the present application can be achieved by the following technical solutions:

[0007] A Euro bin unloading pipe jamming judgment device based on RFID check-in, comprising a winch mechanism and a plurality of telescopic unloading pipes, one end of the plurality of telescopic unloading pipes being located on the winch mechanism, and the other end being connected to the top of the Euro bin, characterized in that the device further comprises a vertical rod, a check-in machine and a plurality of check-in chips, each check-in chip being installed on the upper edge of each section of the plurality of telescopic unloading pipes, the vertical rod being located above the winch mechanism and being arranged in the same direction as the plurality of telescopic unloading pipes, and the check-in machine being located at the top of the vertical rod.

[0008] When the multi-section telescopic feeding tube is fully retracted, each check-in chip is within the receiving range of the check-in machine. When the extension of each section of the multi-section telescopic feeding tube reaches the threshold corresponding to that section, the check-in machine loses the signal of the corresponding check-in chip.

[0009] Furthermore, the check-in chips are arranged along the centerline of the multi-section telescopic feeding tube.

[0010] Furthermore, the check-in chip is a passive device.

[0011] Furthermore, the height of the upright is the same as the height of the center of the line connecting the upper edges of the first and last sections when the multi-section telescopic discharge tube is fully retracted.

[0012] Furthermore, the distance between the upright and the multi-section telescopic discharge pipe is a constant.

[0013] Furthermore, the check-in receiving distance of the check-in machine is the maximum distance from each check-in chip to the check-in machine when the multi-section telescopic feeding tube is fully retracted.

[0014] The determination method used in this invention includes the following steps:

[0015] 1) Determine the height range to which the current working position of the hoisting mechanism belongs;

[0016] 2) Determine the check-in chip corresponding to the given height range;

[0017] 3) Determine whether the check-in machine can receive the signal from the designated check-in chip; if it can receive the signal, the feeding tube is normal; if it cannot receive the signal, the feeding tube is stuck.

[0018] Further, in step 1), the height interval is set as follows: starting from the highest working position of the hoisting mechanism, each descent is equal to the retractable length of one section of the discharge pipe, which is one height interval.

[0019] Furthermore, in step 3), when the check-in machine can receive the check-in chip signal, it determines that the material feeding tube is normal and then executes the judgment process again.

[0020] Furthermore, in the judgment method, the judgment process stops when the distance between the hoisting mechanism and the ground is 0 meters.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1) This invention uses a pole to support the check-in machine, so that the check-in machine is as close as possible to each check-in chip when the material drop tube is fully retracted. When the distance the material drop tube moves with the hoisting mechanism reaches a threshold, the check-in chip will leave the receiving range of the check-in machine. By judging whether the check-in machine can receive the signal sent by the corresponding check-in chip within a specified height range, the check-in machine can promptly detect the problem of jamming of the telescopic material drop tube of the Euro warehouse, reduce the damage and deformation caused by the jamming of the telescopic material drop tube, and improve safety efficiency.

[0023] 2) This invention uses RFID chip check-in to confirm the placement of the material drop tube. Only the same cable and power cable need to be laid at the check-in machine, which reduces the construction difficulty.

[0024] 3) The chip in the central feeding tube is a passive device, fixed on the feeding tube. The only vulnerable part is the main body of the check-in machine, which facilitates later maintenance and verification.

[0025] 4) This invention installs a check-in chip in each telescopic discharge tube, which can logically determine whether the discharge tube is retracted or fully extended, reducing the limit by half compared to the traditional design concept.

[0026] 5) The signal receiving distance of the check-in machine is adjustable, which means that the accuracy can be freely adjusted. The traditional design accuracy is 5mm, which is not suitable for the central material drop tube. Too high an accuracy can easily cause malfunctions or failure to act, resulting in equipment downtime. This invention can set the equipment action distance by the signal receiving distance of the check-in machine, thereby adapting to complex on-site working conditions. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention.

[0028] Figure 2 This is a flowchart of the judgment method according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the judgment method according to an embodiment of the present invention.

[0030] Figure 4 This is a schematic diagram of the judgment method during the rising process of the hoisting mechanism according to an embodiment of the present invention.

[0031] The markings in the diagram are: 1. Check-in machine, 2. Check-in chip, 3. Pole, 4. Hoisting mechanism, 5. Telescopic discharge pipe, 6. Warehouse top, 7. First discharge pipe, 8. Second discharge pipe, 9. Third discharge pipe. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0033] Example

[0034] The embodiments of the present invention are as follows: Figure 1 The device shown is a jamming detection device for a warehouse discharge pipe based on an RFID check-in system. It includes a hoisting mechanism 4 and a multi-section telescopic discharge pipe 5. One end of the multi-section telescopic discharge pipe 5 is connected to the hoisting mechanism 4, and the other end is connected to the top of the warehouse 6. The device also includes a pole 3, a check-in machine 1, and multiple check-in chips 2. The pole 3 and the multi-section telescopic discharge pipe 5 are placed in the same direction. The check-in machine 1 is installed on the top of the pole 3. The RFID check-in chips 2 are placed on the upper edge of each section of the multi-section telescopic discharge pipe 5. The check-in chips 2 are numbered sequentially from top to bottom. When the multi-section telescopic discharge pipe 5 is fully retracted, all the check-in chips 2 are within the receiving range of the check-in machine 1.

[0035] When the multi-section telescopic discharge tube 5 is in the retracted state, each check-in chip 2 is within the receiving range of the check-in machine 1. When the multi-section telescopic discharge tube 5 is running normally, when the extension of one section of the discharge tube reaches the threshold of that section, the check-in machine 1 loses the signal of the corresponding check-in chip 2. The threshold of each section of the discharge tube is the radius of the cross section of the check-in machine's receiving range on that section of the discharge tube.

[0036] Preferably, by placing the check-in chip 2 along the center line of the multi-section telescopic feeding tube 5, the receiving range of the check-in machine 1 can be reduced, and the sensitivity of the check-in machine 1 to abnormal working conditions can be improved.

[0037] Preferably, the distance between the upright 3 and the multi-section telescopic discharge pipe 5 is a fixed value to reduce the change in the receiving range caused by the movement of the upright 3 and improve the accuracy.

[0038] Preferably, the height of the upright 3 is the same as the height of the center of the line connecting the upper edges of the first and last sections of the multi-section telescopic discharge tube 5 when it is fully retracted, so that the distance between each check-in chip 2 and the check-in machine 1 is closer, thereby improving the sensitivity of the check-in machine 1 to abnormal working conditions.

[0039] Preferably, the check-in chip 2 can be a passive device, reducing the need for circuitry on the telescopic feeding tube and lowering the damage rate.

[0040] Preferably, the check-in receiving distance of the check-in machine is the maximum distance between each check-in chip and the check-in machine 1 when the multi-section telescopic feeding tube 5 is fully retracted, thereby improving the sensitivity of the check-in machine to the check-in chip at the farthest distance.

[0041] like Figure 2 As shown, taking the warehouse top 6 as an example where the distance to the ground is 50 meters, the highest working position of the hoisting mechanism 4 is 45 meters, and the telescopic distance of each section of the material drop pipe is 5 meters, the judgment process is as follows:

[0042] Step 1: Determine the current height range of hoisting mechanism 4;

[0043] Step 2: Confirm the check-in chip 2 corresponding to the current altitude range;

[0044] Step 3: Confirm that the corresponding check-in chip 2 is in place. If the feeding tube is in place, the feeding tube is normal. Otherwise, the feeding tube is stuck.

[0045] Preferably, in step 1), the height interval is set such that each descent from the highest working position of the hoisting mechanism 4 is equal to the retractable length of one section of the discharge pipe, which is one height interval. This setting can accurately locate which section of the discharge pipe has malfunctioned.

[0046] Furthermore, in step 3), when the check-in machine 1 can receive the signal from the check-in chip 2, it determines that the material feeding tube is normal and then executes the judgment process again to achieve continuous monitoring.

[0047] Furthermore, during the judgment process, the judgment process stops when the distance between the hoisting mechanism and the ground is 0 meters. At this point, the maximum extension distance has been reached, and there is no need to perform a jamming judgment.

[0048] A specific embodiment of the present invention is given below.

[0049] like Figure 3 As shown, when the hoisting mechanism 4 descends to a height of 41 meters above the ground, the first section of the discharge pipe 7 has not yet fully unfolded, and the second section of the discharge pipe 8 separates from the third section of the discharge pipe 9. According to the judgment steps, at this time, the sign-in machine 1 confirms that the sign-in chip 2 corresponding to the second section of the discharge pipe 8 has not been properly positioned, and outputs that the discharge pipe is stuck.

[0050] like Figure 4 As shown, when the hoisting mechanism 4 rises to a height of 40 meters above the ground, the second section of the discharge pipe 8 and the third section of the discharge pipe 9 fail to be nested together. According to the judgment steps, at this time, the check-in machine 1 confirms that the check-in chip 2 corresponding to the second section of the discharge pipe 8 has not been properly positioned, and the output discharge pipe is stuck.

[0051] The present invention installs a check-in chip 2 on each section of the feeding tube, which enables the judgment of the feeding tube status during both the descent and ascent processes, and can reduce the limit by half.

[0052] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for judging jamming of a discharge pipe in a Euro warehouse based on RFID check-in, comprising a hoisting mechanism (4) and a multi-section telescopic discharge pipe (5), wherein one end of the multi-section telescopic discharge pipe (5) is located on the hoisting mechanism (4), and the other end is connected to the top of the Euro warehouse, characterized in that, The device also includes a pole (3), a check-in machine (1) and multiple check-in chips (2). Each check-in chip (2) is installed on the upper edge of each section of the multi-section telescopic discharge pipe (5). The pole (3) is located above the hoisting mechanism (4) and is arranged in the same direction as the multi-section telescopic discharge pipe (5). The check-in machine (1) is located at the top of the pole (3). When the multi-section telescopic feeding tube (5) is fully retracted, each check-in chip (2) is within the receiving range of the check-in machine (1). When the extension of each section of the multi-section telescopic feeding tube (5) reaches the threshold corresponding to that section, the check-in machine (1) loses the signal of the corresponding check-in chip (2).

2. The RFID-based check-in device for judging jamming of the discharge pipe in a Euro warehouse according to claim 1, characterized in that, The check-in chip (2) is arranged along the center line of the multi-section telescopic discharge tube (5).

3. The RFID-based check-in device for judging jamming of the discharge pipe in a Euro warehouse according to claim 1, characterized in that, The check-in chip (2) is a passive device.

4. The RFID-based check-in device for judging jamming of the discharge pipe in a Euro warehouse according to claim 1, characterized in that, The height of the upright (3) is the same as the height of the center of the line connecting the upper edges of the first and last sections when the multi-section telescopic drop tube (5) is fully retracted.

5. The RFID-based check-in device for judging jamming of the discharge pipe in a Euro warehouse according to claim 4, characterized in that, The distance between the upright (3) and the multi-section telescopic drop tube (5) is a constant.

6. The RFID-based check-in device for judging jamming of the discharge pipe in a Euro warehouse according to claim 5, characterized in that, The check-in receiving distance of the check-in machine (1) is the maximum distance from each check-in chip (2) to the check-in machine (1) when the multi-section telescopic discharge tube (5) is fully retracted.

7. A method for judging jamming of a refrigerated discharge pipe in a refrigerated warehouse based on RFID check-in, as described in any one of claims 1-6, characterized in that, The determination method includes the following steps: 1) Determine the height range of the current working position of the hoisting mechanism (4); 2) Determine the check-in chip corresponding to the height range (2); 3) Determine whether the check-in machine (1) can receive the signal from the designated check-in chip (2); if it can receive the signal, the feeding tube is normal; if it cannot receive the signal, the feeding tube is stuck.

8. The method for judging jamming of the feed pipe in a Euro warehouse as described in claim 7, characterized in that, In step 1), the height interval is set as follows: starting from the highest working position of the hoisting mechanism (4), each descent is equal to the retractable length of a section of the discharge pipe, which is a height interval.

9. The method for judging jamming of the feed pipe in a Euro warehouse as described in claim 7, characterized in that, In step 3), when the check-in machine (1) can receive the check-in chip (2) signal, it determines that the material drop tube is normal and then performs the judgment process again.

10. The method for judging jamming of the feed pipe in a Euro warehouse as described in claim 7, characterized in that, In the aforementioned judgment method, the judgment process is stopped when the distance between the hoisting mechanism (4) and the ground is 0 meters.

Images