Gas-solid rapid separation device

Abstract

The utility model discloses a rapid gas-solid separation device which comprises an outer barrel, a rotational flow barrel, a rotational flow end socket, a rotational flow plate and an inlet pipe system, the rotational flow plate is connected to the outer side of the rotational flow cylinder, and the rotational flow seal head is connected to the lower side of the rotational flow cylinder; the rotational flow plate, the rotational flow cylinder and the rotational flow end socket are arranged on the inner side of the outer cylinder, the inlet pipe system penetrates through the outer cylinder and is connected with the rotational flow cylinder, and an opening is formed in the rotational flow cylinder. The gas-solid rapid separation device is wide in application range, can be used for rapid separation of oil gas and a catalyst at an outer riser terminal, and can also be used for rapid separation of oil gas and a catalyst at an inner riser terminal. The gas-solid rapid separation device fully utilizes the space of the settler shell, greatly saves the equipment investment, and has better economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical separation equipment, in particular to a gas-solid rapid separation device. Background Art

[0002] In the catalytic device of the refinery, after the oil and gas at the top of the external riser reactor enters the reaction settler, the terminal oil and gas and the catalyst need to be quickly separated to prevent overreaction and affect the product yield. The prior art is that after the oil and gas enter the reaction settler through the external riser, a coarse cyclone separator is set at the terminal to quickly separate the oil and gas and the catalyst. The disadvantage of the prior art is that the cyclone separator has a complex structure, is difficult to manufacture and install, and has a high equipment investment.

[0003] CN201310477151.1 discloses a method and equipment for preventing coking in an external riser reactor, including a settler, a top swirl, a stripping section, an external riser reactor, an external cyclone-type quick separator, a closed connecting pipe, a coke-proof gas distribution pipe, a partition plate, and an air guide pipe. The patented external cyclone separation system is connected to the top swirl in the settler in a closed manner, and a special channel is provided to guide the stripping gas and a wing valve to discharge the oil and gas so that it does not flow through the settler, thereby improving the inclusion rate of the quick separation system and helping to solve the coking problem of the settler. However, the external cyclone-type quick separator is arranged at the top of the riser reactor, and an additional catalyst return pipe needs to be provided, which not only increases the overall height of the equipment, but also requires an increased support frame and additional inspection and maintenance labor protection measures. This makes it difficult to install, inspect and maintain the equipment, the equipment investment is high, and the inspection and inspection of external operators are difficult.

[0004] CN201610055045.8 discloses a fast separation device for the outlet of a catalytic cracking riser, comprising: a reactor shell, an inner riser, a cyclone fast separation head, and a gas-solid dense phase circulation pre-stripper. This technology can achieve efficient and fast separation of oil and gas and catalyst, fast extraction of oil and gas, and efficient pre-stripping of catalyst, reduce the occupied space of the equipment, reduce the volume of the settler, and reduce the coking sites in the settler. However, it can only be used for fast separation of oil and gas and catalyst at the inner lifting terminal, has a complex structure, is difficult to manufacture and install, has high equipment investment, and has obvious limitations in the scope of technical application. Utility Model Content

[0005] In order to solve the technical problems existing in the above-mentioned prior art and realize the rapid separation of oil, gas and catalyst, the utility model provides a gas-solid rapid separation device.

[0006] The utility model discloses a gas-solid rapid separation device, comprising an outer cylinder, a cyclone cylinder, a cyclone head, a cyclone plate and an inlet pipe system; the cyclone plate is connected to the outside of the cyclone cylinder, and the cyclone head is connected to the lower side of the cyclone cylinder; the cyclone plate, the cyclone cylinder and the cyclone head are arranged on the inner side of the outer cylinder, the inlet pipe system passes through the outer cylinder, the inlet pipe system is connected to the cyclone cylinder, and an opening is arranged on the cyclone cylinder.

[0007] The utility model discloses a gas-solid rapid separation device, which is further characterized in that: an outer cylinder comprises a gas outlet pipe, a gas outlet cone, a gas-solid separation chamber, a solid outlet cone, and a solid outlet cylinder, and the gas outlet pipe, the gas outlet cone, the gas-solid separation chamber, the solid outlet cone, and the solid outlet cylinder are connected in sequence from top to bottom; an inlet pipe system comprises an inlet elbow, an inlet pipe, and an inlet cone, and the inlet elbow, the inlet pipe, the inlet cone, and the cyclone cylinder are connected in sequence; and a cyclone plate and a cyclone cylinder are arranged on the inner side of the gas-solid separation chamber.

[0008] The utility model provides a gas-solid rapid separation device, which is further characterized in that the swirl plate can be in any shape that is conducive to the swirl of the fluid, and the most commonly used is the arc plate.

[0009] The utility model provides a gas-solid rapid separation device, which is further characterized in that a vortex-breaking plate is arranged inside a gas outlet pipe.

[0010] The utility model provides a gas-solid rapid separation device, which is further characterized in that the opening structure and opening area of ​​the cyclone cylinder can be of any shape and size, which are ultimately subject to the process calculation requirements.

[0011] The utility model provides a gas-solid rapid separation device, which is further characterized in that inspection manholes are arranged on the swirl head and the solid outlet cone.

[0012] The utility model provides a gas-solid rapid separation device, which is further characterized in that all inner surfaces contacting the gas-solid medium are provided with wear-resistant linings and wear-resistant lining anchoring pieces.

[0013] The utility model provides a gas-solid rapid separation device, which is further characterized in that a stripping device is arranged at the bottom end of a solid outlet cylinder, and the stripping device can be a stripping baffle, a stripping grid, or a material sealing bucket structure.

[0014] This gas-solid rapid separation device utilizes the vertical downward flow medium entering the inlet pipe system through the openings on the cyclone cylinder and the oil, gas, and catalyst solids after rectification by the cyclone plates, which have different centrifugal forces in the high-speed centrifugal cyclone, to throw the gas and solid cyclones into the gas-solid separation chamber for rapid separation. The lighter gas cyclones out of the gas-solid separation chamber and enters the gas outlet cone and gas outlet pipe upward, and enters the subsequent separation device after being rectified by the gas outlet vortex plate; the heavier solids are thrown out by the cyclone and enter the gas-solid separation chamber, cyclone along its wall into the solid outlet cone and solid outlet cylinder, and enter the stripping device at the bottom. This gas-solid rapid separation device is also provided with an inspection channel, that is, a welded inspection manhole is provided on the solid outlet cone and the cyclone head, wherein the welded inspection manhole on the cyclone head is also a channel for removing residual solids in the cyclone cylinder during maintenance.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. The gas-solid rapid separation device has a wide range of applications. It can be used not only for rapid separation of oil, gas and catalyst at the terminal of an external riser, but also for rapid separation of oil, gas and catalyst at the terminal of an internal riser.

[0017] 2. This gas-solid rapid separation device makes full use of the space of the settler shell, greatly saves equipment investment, and has good economic benefits.

[0018] 3. The gas-solid rapid separation device has a simple structure, is reliable, and is easy to manufacture and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a gas-solid rapid separation device of the utility model;

[0020] Figure 2 for Figure 1 A-direction sectional view;

[0021] In the figure: 1, inlet pipe, 2, inlet elbow, 3, inlet cone, 4, swirl cylinder, 5, swirl plate, 6, swirl head, 7, inspection manhole, 8, gas outlet pipe, 9, vortex breaking plate, 10, gas outlet cone, 11, gas-solid separation chamber, 12, solid outlet cone, 13, solid outlet cylinder, 14, stripping device, 15, opening. DETAILED DESCRIPTION

[0022] The utility model will be described in detail below with reference to the accompanying drawings:

[0023] like Figure 1 , Figure 2As shown, the utility model includes an inlet pipe 1, an inlet elbow 2, an inlet cone 3, a cyclone cylinder 4, a cyclone plate 5, a cyclone head 6, an inspection manhole 7, a gas outlet pipe 8, a vortex breaking plate 9, a gas outlet cone 10, a gas-solid separation chamber 11, a solid outlet cone 12, a solid outlet cylinder 13 and a stripping device 14; the inlet elbow 2, the inlet pipe 1, the inlet cone 3, the cyclone cylinder 4 are connected in sequence; the gas outlet pipe 8, the gas outlet cone 10, the gas-solid separation chamber 11, the solid outlet cone 12, the solid outlet cylinder 13 and the stripping device 14 are connected in sequence; the arc-shaped cyclone plate 5 is connected to the outside of the cyclone cylinder 4, the cyclone head 6 is connected to the lower side of the cyclone cylinder 4, and the vortex breaking plate 9 is arranged on the inner side of the gas outlet pipe 8; an opening 15 is provided on the cyclone cylinder 4, and an inspection manhole 7 is provided on the cyclone head 6 and the solid outlet cone 12.

[0024] Oil, gas and catalyst pass through the inlet elbow 2, inlet pipe 1 and inlet cone 3 in sequence and enter the cyclone cylinder 4. The oil, gas and catalyst solids in the medium have different centrifugal forces in the high-speed centrifugal cyclone. The gas-solid cyclone is thrown out from the opening 15 to the gas-solid separation chamber 11 for rapid separation through the cyclone cylinder 4 and the cyclone plate 5. The lighter gas cyclones out of the gas-solid separation chamber 11 toward the gas outlet pipe 8, and enters the subsequent separation device after being rectified by the vortex plate 9; the heavier solids are thrown out by the cyclone and enter the gas-solid separation chamber 11, and fall into the solid outlet cone 12, the solid outlet cylinder 13 and the stripping device 14 through the wall cyclone for discharge. Considering that the solids in the medium erode the parts of the separation device, relevant wear-resistant linings and wear-resistant lining anchors are set on all surfaces contacting the gas-solid medium. The gas-solid rapid separation device is also provided with an inspection channel, that is, a welded inspection manhole 7 is provided on the solid outlet cone 12 and the cyclone head 6, wherein the welded inspection manhole 7 on the cyclone head 6 is also a channel for removing residual solids in the cyclone cylinder during maintenance.

[0025] The above are only typical embodiments of the present invention, and those skilled in the art can make appropriate modifications and improvements thereon, but they are substantially the same as the present invention and also fall within the protection scope of the present invention.

Claims

1. A gas-solid rapid separation device, characterized in that: It includes an outer cylinder, a swirl cylinder, a swirl head, a swirl plate, and an inlet pipe system; the swirl plate is connected to the outside of the swirl cylinder, and the swirl head is connected to the bottom of the swirl cylinder; the swirl plate, swirl cylinder, and swirl head are arranged on the inside of the outer cylinder, the inlet pipe system passes through the outer cylinder, the inlet pipe system is connected to the swirl cylinder, and an opening is arranged on the swirl cylinder.

2. The gas-solid rapid separation device according to claim 1, characterized in that: The outer cylinder includes a gas outlet pipe, a gas outlet cone, a gas-solid separation chamber, a solid outlet cone, and a solid outlet cylinder, and the gas outlet pipe, gas outlet cone, gas-solid separation chamber, solid outlet cone, and solid outlet cylinder are connected in sequence from top to bottom; the inlet pipe system includes an inlet elbow, an inlet pipe, and an inlet cone, and the inlet elbow, inlet pipe, inlet cone, and cyclone cylinder are connected in sequence; the cyclone plate and the cyclone cylinder are arranged on the inner side of the gas-solid separation chamber.

3. The gas-solid rapid separation device according to claim 2, characterized in that: The swirl plate is a circular arc plate.

4. The gas-solid rapid separation device according to claim 2, characterized in that: A vortex-breaking plate is arranged inside the gas outlet pipe.

5. The gas-solid rapid separation device according to claim 2, characterized in that: Inspection manholes are provided on the swirl head and the solid outlet cone.

6. The gas-solid rapid separation device according to claim 2, characterized in that: All inner surfaces in contact with gas-solid media are provided with wear-resistant linings and wear-resistant lining anchors.

7. The gas-solid rapid separation device according to claim 2, characterized in that: A stripping device is arranged at the bottom of the solid outlet cylinder.

8. The gas-solid rapid separation device according to claim 7, characterized in that: The stripping device is a stripping baffle or a stripping grid or a material sealing hopper structure.

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