Dustproof catalyst sampling device

Abstract

The utility model provides a catalyst sampling dustproof device. The catalyst sampling dustproof device comprises a conveying pipe, a first switch valve, a second switch valve, an air inlet pipe and a sampling tank, the first end of the conveying pipe is used for connecting a catalyst sampler, and the second end of the conveying pipe is communicated with the sampling tank; a communicating port is formed in the middle of the conveying pipe and communicates with the air inlet pipe, and the end, away from the conveying pipe, of the air inlet pipe is connected with an air blowing device; the first switch valve is arranged at the first end of the conveying pipe or at the position close to the first end of the conveying pipe, and the second switch valve is arranged at the second end of the conveying pipe or at the position close to the second end of the conveying pipe. The sampling tank is provided with an exhaust port, a filter element is arranged in the sampling tank, and the filter element seals the exhaust port. The moving range of the catalyst is limited by arranging the sampling tank at the end part of the conveying pipe, and the filter element is arranged at the exhaust port of the sampling tank, so that when a gas medium is exhausted through the exhaust port, the catalyst is blocked in the sampling tank by the filter element, and the catalyst is prevented from diffusing out of the sampling tank.

Description

Technical Field

[0001] The utility model relates to the technical field of dust catalyst sampling, in particular to a catalyst sampling dust prevention device. Background Art

[0002] During the sampling process of the catalyst, a gas medium will be blown into the sampling device using a blowing device to purge the residual catalyst. However, during sampling and purging, some catalyst dust will float in the air under the influence of the gas medium pressure, which will affect people's health if inhaled. After sampling, a layer of catalyst will accumulate on the ground, affecting the standardization of the device, especially when blowing, the catalyst will fly. In addition, the general temperature of the catalyst is 300-600℃, and the sampling personnel are at risk of being scalded by the high-temperature catalyst when sampling directly.

[0003] In the existing patent, there is a catalyst sampling dust prevention facility (patent number: CN212722181U). This technology sets up a closed sampling box, fixes the box door with hinges and buckles, and places the sampling cup in the sampling box. The sampling process is carried out in the sampling box, and the excess catalyst is discharged through the bottom cone tube.

[0004] However, this technology only solves the dust problem when the sampling cup is connected to the catalyst, but the gas in the medium still needs to be discharged. The discharge will carry the catalyst dust out from the gap of the box, and the impact will be greater at the moment the door is opened. When sampling, the sampling cup is placed in the box, and it is impossible to see whether enough samples are collected. The sampling cup is full. It is inevitable to pour out part of the sample when taking out the sampling cup, and there will be catalyst left on the handle of the cup. In addition, the sampling tube needs to be purged after the sampling is completed, otherwise it will cause blockage. During the purging, the gas of the equipment will carry the catalyst and spray out from the bottom. Therefore, this technology cannot really prevent dust. Utility Model Content

[0005] Based on this, it is necessary to provide a catalyst sampling dust prevention device to address the above technical problems, which can avoid the problem that some catalyst dust floats in the air under the influence of gas medium pressure during sampling, affecting the health of sampling personnel.

[0006] A catalyst sampling dust prevention device, comprising: a delivery pipe, a first switch valve, a second switch valve, an air inlet pipe and a sampling tank;

[0007] The first end of the delivery tube is used to connect the catalyst into the sampler, and the second end of the delivery tube is connected to the sampling tank;

[0008] A communication port is provided in the middle of the delivery pipe, the communication port is communicated with the air inlet pipe, and an end of the air inlet pipe away from the delivery pipe is used to connect to a blowing device;

[0009] The first switch valve is disposed at the first end of the delivery pipe or a position close to the first end of the delivery pipe, and the second switch valve is disposed at the second end of the delivery pipe or a position close to the second end of the delivery pipe;

[0010] The sampling tank is provided with an exhaust port, a filter element is provided inside the sampling tank, and the filter element closes the exhaust port.

[0011] In one embodiment, the delivery tube is transparent.

[0012] In one of the embodiments, the air intake pipe is provided with a third switch valve.

[0013] In one embodiment, the filter element has a plurality of filter holes, and the pore size of each filter hole is less than or equal to 1.3 μm.

[0014] In one embodiment, the filter element has a plurality of filter holes, and the pore size of each filter hole is less than or equal to 1.3 μm.

[0015] In one of the embodiments, the bottom surface of the collecting hopper is provided with an opening, and the bottom surface of the collecting hopper is inclined from the edge of the collecting hopper toward the opening in a direction away from the sampling canister.

[0016] In one embodiment, an observation tube is provided at the bottom of the sampling tank, and the observation tube is transparent.

[0017] In one embodiment, a control component is disposed at the bottom of the sampling canister, and the control component is used to control the dosage of the catalyst entering the collection cup.

[0018] In one embodiment, the control component includes a discharge valve.

[0019] In one embodiment, the exhaust port is disposed on the top surface or the side surface of the sampling tank.

[0020] The above-mentioned catalyst sampling dust prevention device, the delivery pipe is connected to the catalyst sampler through the first end. When the catalyst sampler is started and the first switch valve is opened, the catalyst enters the delivery pipe. The delivery pipe is connected to the sampling tank through the second end. When the second valve is opened, the catalyst automatically slides to the second end and enters the sampling tank under the action of gravity. The air intake pipe is connected to the connecting port, so that the air intake pipe is connected to the delivery pipe. When the catalyst in the delivery pipe needs to be purged, the air intake pipe is connected to the blowing device. Close the first switch valve, open the second valve, and the gas blown out of the blowing device blows the catalyst remaining in the delivery pipe into the sampling tank through the second switch valve through the air intake pipe. After the gas medium with the catalyst enters the sampling tank, the gas medium flows toward the exhaust port, and the catalyst in the gas medium falls back into the sampling tank after being blocked by the filter element, and the filtered air is discharged outside the sampling tank. Since the general temperature of catalysts is between 300-600℃, the sampling tank contains the catalyst with higher temperature and waits for the catalyst to cool down. After cooling, the catalyst is gathered in the sampling tank and waits for sampling and collection to avoid the risk of workers being scalded by the newly collected catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of a catalyst sampling dust prevention device in one embodiment. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of 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.

[0023] Embodiment 1

[0024] In this embodiment, Figure 1 As shown, a catalyst sampling dust prevention device is provided, including: a delivery pipe 100, a first switch valve 110, a second switch valve 120, an air intake pipe 200 and a sampling tank 300; the first end of the delivery pipe 100 is used to connect to the catalyst sampler, and the second end of the delivery pipe 100 is connected to the sampling tank 300; a connecting port is provided in the middle of the delivery pipe 100, and the connecting port is connected to the air intake pipe 200, and the end of the air intake pipe 200 away from the delivery pipe 100 is used to connect to a blowing device; the first switch valve 110 is arranged at the first end of the delivery pipe 100 or a position close to the first end of the delivery pipe 100, and the second switch valve 120 is arranged at the second end of the delivery pipe 100 or a position close to the second end of the delivery pipe 100; the sampling tank 300 is provided with an exhaust port 310, and a filter element 320 is arranged in the sampling tank 300, and the filter element 320 closes the exhaust port 310.

[0025] The delivery pipe 100 is connected to the catalyst sampler through the first end. When the catalyst sampler is started and the first switch valve 110 is opened, the catalyst enters the delivery pipe 100. The delivery pipe 100 is connected to the sampling tank 300 through the second end. When the second valve is opened, the catalyst automatically slides to the second end under the action of gravity and enters the sampling tank 300. The air intake pipe 200 is connected to the connecting port, so that the air intake pipe 200 is connected to the delivery pipe 100. When the catalyst in the delivery pipe 100 needs to be purged, the air intake pipe 200 is connected to the blowing device. The first switch valve 110 is closed, and the second valve is opened. The gas blown out by the blowing device passes through the air intake pipe 200 and blows the catalyst remaining in the delivery pipe 100 into the sampling tank 300 through the second switch valve 120. After the gas medium with the catalyst enters the sampling tank 300, the gas medium flows toward the exhaust port 310, and the catalyst in the gas medium falls back into the sampling tank 300 after being blocked by the filter element 320, and the filtered air is discharged out of the sampling tank 300. Since the temperature of the catalyst is generally 300-600°C, the sampling tank 300 accommodates the catalyst with a higher temperature and waits for the catalyst to cool down. After cooling, the catalyst gathers in the sampling tank 300 and waits for sampling and collection, avoiding the risk of workers being scalded by the newly collected catalyst.

[0026] In one embodiment, the delivery tube 100 is transparent.

[0027] In this embodiment, the transparent delivery pipe 100 can more clearly observe the dosage of the catalyst in the delivery pipe 100, which is beneficial for the staff to timely control the catalyst into the sampler and the opening time of the first switch valve 110, and can improve the operating efficiency.

[0028] In one embodiment, the delivery pipe 100 is arranged to be gradually inclined downward from the first end to the second end.

[0029] In this embodiment, when the catalyst enters the delivery pipe 100, the catalyst is automatically slid from the first end to the second end of the delivery pipe 100 due to its own gravity, so that the catalyst is concentrated at the second end of the delivery pipe 100, making it easier to collect the catalyst.

[0030] In one embodiment, the exhaust port 310 is disposed on a side of the sampling canister 300 .

[0031] In this embodiment, after the gas medium with the catalyst enters the sampling tank 300, the temperature of the gas medium rises due to the high temperature of the catalyst, and the gas medium with a higher temperature is concentrated in the upper half of the sampling tank 300. The exhaust port 310 is opened on the side of the sampling tank 300 to allow the gas medium to be discharged out of the sampling tank 300 more quickly, which is conducive to increasing the collection speed of the catalyst.

[0032] In one embodiment, the exhaust port 310 is disposed on the top surface of the sampling canister 300 .

[0033] In this embodiment, in the sampling state, only the exhaust port 310 of the sampling tank 300 is connected to the outside. After the gas medium carrying the catalyst enters the sampling tank 300, it flows to the exhaust port 310 at the top of the sampling tank 300. Setting the exhaust port 310 at the top of the sampling tank 300 can allow the catalyst to fall directly back to the bottom of the sampling tank 300 through the obstruction of the filter element 320, reduce the contact of the catalyst with the side wall of the sampling tank 300 during the falling process, reduce the adhesion of the catalyst to the side wall of the sampling tank 300, and help collect more catalysts.

[0034] In one embodiment, the air intake pipe 200 is provided with a third switch valve 210 .

[0035] In this embodiment, a third switch valve 210 is installed on the air intake pipe 200, so that when the catalyst sampler delivers the catalyst into the delivery pipe 100, the air intake pipe 200 is closed to prevent the catalyst from being discharged from the air intake pipe 200. In addition, the air intake pipe 200 is used to communicate with the air blowing device, and controlling the opening size of the third switch valve 210 can also have the effect of changing the air blowing flow size of the air blowing device.

[0036] In one embodiment, the filter element 320 has a plurality of filter holes, and the pore size of each filter hole is less than or equal to 1.3 μm.

[0037] It should be understood that, after laboratory analysis, the content of catalytic cracking catalyst particles greater than 10 μm is greater than 99.99%. In this embodiment, the pore size of the filter hole in the filter element 320 is set to be less than or equal to 1.3 μm, so that the catalyst in the gas medium filtered by the filter element 320 is isolated in the sampling tank 300, and the catalyst dust will not be blown into the air outside the sampling tank 300.

[0038] In one embodiment, the angle between the air inlet pipe 200 and the first end of the delivery pipe 100 is a right angle.

[0039] In this embodiment, since the delivery pipe 100 is gradually inclined downward from the first end to the second end, when the air inlet pipe 200 blows gas into the delivery pipe 100, part of the catalyst in the delivery pipe 100 moves from the connecting port toward the first end, and part moves toward the second end. After the blowing stops, the catalyst moving toward the first end slides along the delivery pipe 100 toward the second end under the action of gravity and gathers with the catalyst at the second end.

[0040] In one embodiment, the angle between the air inlet pipe 200 and the first end of the delivery pipe 100 is an acute angle.

[0041] In this embodiment, when the angle between the intake pipe 200 and the first end of the delivery pipe 100 is an acute angle, after the gas is blown by the intake pipe 200, the flow direction of the gas in the intake pipe 200 is biased toward the second end of the delivery pipe 100, so that the catalyst in the delivery pipe 100 can move more quickly toward the second end of the delivery pipe 100, which is beneficial to improve the purging effect of the intake pipe 200 on the catalyst in the delivery pipe 100.

[0042] In one embodiment, a collecting hopper 330 is disposed at the bottom of the sampling tank 300 . An opening is provided at the bottom of the collecting hopper 330 . The bottom surface of the collecting hopper 330 is inclined from the edge of the collecting hopper 330 toward the opening and away from the sampling tank 300 .

[0043] In this embodiment, a collecting hopper 330 is installed at the bottom of the sampling tank 300, and the bottom surface of the collecting hopper 330 is tilted downward toward the opening. When the catalyst isolated in the sampling tank 300 falls to the bottom of the sampling tank 300, it is automatically concentrated toward the opening direction of the collecting hopper 330 under the action of gravity of the catalyst, and finally quickly discharged out of the collecting hopper 330 through the opening of the collecting hopper 330.

[0044] In one embodiment, an observation tube 340 is disposed at the bottom of the sampling tank 300 , and the observation tube 340 is transparent.

[0045] In this embodiment, the observation tube 340 is installed below the collection bucket 330, and the observation tube 340 is connected to the opening of the collection bucket 330. The catalyst falling into the collection bucket 330 slides into the observation tube 340 through the opening. The transparent observation tube 340 makes it easier to observe the dosage of the collected catalyst, avoiding excessive or insufficient dosage of catalyst in the sampling tank 300, which affects the collection effect.

[0046] In one embodiment, a control component is provided at the bottom of the sampling tank 300, and the control component includes a discharge valve 341. The discharge valve 341 is installed on the observation tube 340, and a catalyst sampling port is provided at the bottom of the observation tube 340. The discharge valve 341 is used to control the dosage of the catalyst released from the catalyst sampling port and falling into the collection cup.

[0047] In this embodiment, when the catalyst in the delivery pipe 100 is purged, the discharge valve 341 is closed and the bottom of the observation tube 340 is closed. The cooled catalyst in the collection hopper 330 falls into the observation tube 340. After a sufficient amount of catalyst is collected in the observation tube 340, the collection cup is placed at the catalyst sampling port at the bottom of the observation tube 340, and the discharge valve 341 is opened to collect the catalyst.

[0048] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A catalyst sampling dust prevention device, characterized in that: include: A delivery pipe, a first switch valve, a second switch valve, an air inlet pipe and a sampling tank; The first end of the delivery tube is used to connect the catalyst into the sampler, and the second end of the delivery tube is connected to the sampling tank; A communication port is provided in the middle of the delivery pipe, the communication port is communicated with the air inlet pipe, and an end of the air inlet pipe away from the delivery pipe is used to connect to a blowing device; The first switch valve is disposed at the first end of the delivery pipe or a position close to the first end of the delivery pipe, and the second switch valve is disposed at the second end of the delivery pipe or a position close to the second end of the delivery pipe; The sampling tank is provided with an exhaust port, a filter element is provided inside the sampling tank, and the filter element closes the exhaust port.

2. The catalyst sampling dust prevention device according to claim 1, characterized in that: The delivery tube is transparent.

3. The catalyst sampling dust prevention device according to claim 1, characterized in that: The air intake pipe is provided with a third switch valve.

4. The catalyst sampling dust prevention device according to claim 1, characterized in that: The filter element has a plurality of filter holes, and the pore size of each filter hole is less than or equal to 1.3 μm.

5. The catalyst sampling dust prevention device according to claim 1, characterized in that: A collecting hopper is arranged at the bottom of the sampling tank.

6. The catalyst sampling dust prevention device according to claim 5, characterized in that: The bottom surface of the collecting hopper is provided with an opening, and the bottom surface of the collecting hopper is inclined from the edge of the collecting hopper to the opening in a direction away from the sampling tank.

7. The catalyst sampling dust prevention device according to claim 1, characterized in that: An observation tube is arranged at the bottom of the sampling tank, and the observation tube is transparent.

8. The catalyst sampling dust prevention device according to claim 1, characterized in that: A control component is arranged at the bottom of the sampling tank, and the control component is used to control the dosage of the catalyst entering the collection cup.

9. The catalyst sampling dust prevention device according to claim 8, characterized in that: The control assembly includes a discharge valve.

10. The catalyst sampling dust prevention device according to any one of claims 1 to 9, characterized in that: The exhaust port is arranged on the top surface or the side surface of the sampling tank.

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