Air screen for removing carbon powder mingled in active coke

Abstract

The utility model provides an air screen for removing carbon powder mingled in active coke, which is mounted in the active coke circulating process, can remove the carbon powder mingled in active coke particles in the active coke circulating process, does not need to specially move the active coke out of a device for treatment, and is convenient and fast. Comprising an inner cylinder used for providing a falling channel for active coke solid materials mingled with carbon powder, a feeding port is formed in the top of the inner cylinder, and a discharging gas inlet is formed in the bottom of the inner cylinder; the outer cylinder is sleeved outside the inner cylinder, and a jacket cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder; a discharge hole corresponding to the discharge air inlet is formed in the bottom of the outer cylinder, and is used for mounting the air screen on an active coke circulating device through the discharge hole; the gas inlet is formed in the side wall of the outer cylinder and is used for introducing gas into the jacket cavity through the gas inlet; the gas outlet is formed in the part, extending out of the outer cylinder, of the upper part of the inner cylinder and is used for enabling the gas with the carbon powder to flow out through the gas outlet.

Description

Technical Field

[0001] The utility model belongs to the technical field of active coke impurity treatment, and in particular relates to an air screen for removing carbon powder mixed in active coke. Background Art

[0002] After years of development, the activated coke dry desulfurization process has become a mainstream process in the flue gas desulfurization and denitrification purification industry. The catalyst used in this process to purify flue gas is columnar activated coke. During the circulation of activated coke in the device, activated coke powder will be produced due to wear and other reasons. Activated coke powder will not only increase the running resistance of flue gas, but also may cause activated coke agglomeration, poor circulation and ultimately lead to adverse consequences such as temperature rise of the activated coke bed, resulting in greater safety risks and economic losses. Therefore, removing carbon powder from activated coke particles has important economic and practical significance, but there are few devices dedicated to removing activated coke powder. Utility Model Content

[0003] The utility model provides an air screen for removing carbon powder mixed in activated coke. The air screen is installed in the activated coke circulation process. The carbon powder mixed in the activated coke particles can be removed in the activated coke circulation process without the need to specially remove the activated coke from the device for processing. The utility model is convenient and quick.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A wind screen for removing carbon powder mixed with activated coke, comprising:

[0006] The inner cylinder is used to provide a falling channel for the activated coke solid material mixed with carbon powder, and the inner cylinder is provided with a feed inlet at the top and a discharge air inlet at the bottom;

[0007] The outer cylinder is sleeved on the outside of the inner cylinder, and a jacket cavity is formed between the inner wall of the outer cylinder and the outer wall of the inner cylinder; a discharge port corresponding to the discharge air inlet is provided at the bottom of the outer cylinder, and the air screen is installed on the activated coke circulation device through the discharge port;

[0008] An air inlet is installed on the side wall of the outer cylinder and is used to introduce gas into the jacket cavity through the air inlet;

[0009] The gas outlet is installed on the part of the upper part of the inner cylinder extending out of the outer cylinder, and is used to allow the gas containing carbon powder to flow out through the gas outlet.

[0010] Furthermore, it also includes:

[0011] The wear-resistant material guiding component is installed inside the inner cylinder and is used to guide the material.

[0012] Furthermore, the anti-wear material guide component includes:

[0013] A tray, which has an open top and is located below the bottom outlet of the feed inlet, for receiving materials;

[0014] There are multiple spiral guide plates, which are evenly connected to the bottom of the tray and parallel to each other for guiding flow.

[0015] Furthermore, the spiral guide plate is a plate-like structure extending in a continuous Z shape.

[0016] Furthermore, the tray and the spiral guide plate are both made of carbon steel.

[0017] Furthermore, the air outlet is arranged to be inclined upward.

[0018] Furthermore, the bottoms of the inner tube and the outer tube are both cone-section structures.

[0019] Furthermore, the bottom outlet of the feed port extends to the interior of the inner tube.

[0020] The beneficial effects of the utility model include:

[0021] Gas is introduced into the jacket cavity through the air inlet to form an air flow, which enters the inner cylinder along the jacket cavity from the discharge air inlet at the bottom of the inner cylinder. The gas flows from bottom to top along the inner cylinder, so that the carbon powder in the activated coke particles falling in the inner cylinder is entrained by the air flow and discharged through the air outlet, thereby effectively removing the carbon powder in the activated coke and improving the purity and use effect of the activated coke; the wind screen is connected to the activated coke circulation device through the discharge port at the bottom thereof, and the carbon powder can be removed without removing the activated coke from the device, thereby improving the processing efficiency and convenience.

[0022] By installing anti-wear material guiding components inside the inner cylinder, the material enters from the feed port and falls onto the tray below the feed port. When the tray is full of material, it will overflow and flow down to the spiral guide plate, which will guide the material. This process blocks the direct contact between the material and the wall of the inner cylinder, thereby achieving anti-wear requirements and satisfying the material guiding requirements. It can effectively reduce the wear of the activated coke particles on the equipment, protect the equipment structure, and extend its service life.

[0023] The design of the spiral guide plate allows the material to fall evenly and orderly in the inner cylinder, avoiding material accumulation and blockage, and improving processing efficiency. At the same time, the continuous Z-shaped structure of the spiral guide plate also helps to increase the contact area and duration between the material and the airflow, further improving the removal effect of carbon powder.

[0024] The bottom of the inner and outer cylinders are both tapered, which is conducive to the smooth discharge of materials and the effective circulation of gas. By removing the carbon powder in the activated coke, the running resistance of the flue gas can be effectively reduced, and the problems of activated coke agglomeration and poor circulation can be avoided, thereby reducing safety risks and economic losses. The tray and spiral guide plate are made of carbon steel, which has high wear resistance and corrosion resistance. The gas outlet is tilted upward, which is conducive to the smooth discharge of the gas with carbon powder and avoids gas reflux and accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the pallet structure;

[0027] Figure 3 Schematic diagram of the spiral guide plate structure;

[0028] Figure 4 It is a schematic diagram of the structure of the wear-resistant material guide component.

[0029] In the figure: 1. feed port; 2. discharge air inlet; 3. air outlet; 4. anti-wear material guide component; 5. inner cylinder; 6. outer cylinder; 7. air inlet; 8. discharge port; 9. jacket cavity; 4.1. tray; 4.2. spiral guide plate. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "inside" and "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] The invention discloses an air screen for removing carbon powder mixed in activated coke, which can be fixed on an activated coke circulation device by means of ear seats, skirt seats or hoisting. The air screen is not limited to use on the activated coke circulation device, but also has obvious effect on removing fine powder impurities in other solids.

[0034] like Figure 1 As shown, the outer cylinder 6 is sleeved on the outside of the inner cylinder 5, and a jacket cavity 9 is formed between the inner wall of the outer cylinder 6 and the outer wall of the inner cylinder 5; a feed port 1 is provided at the top of the inner cylinder 5, and the bottom outlet of the feed port 1 extends to the inside of the inner cylinder 5, a discharge air inlet 2 is provided at the bottom of the inner cylinder 5, an air outlet 3 is provided at the part of the upper part of the inner cylinder 5 extending out of the outer cylinder 6, and an anti-wear material guiding component 4 is installed inside the inner cylinder 5; a discharge port 8 corresponding to the discharge air inlet 2 is provided at the bottom of the outer cylinder 6, and an air inlet 7 is provided on the side wall of the outer cylinder 6, and the air inlet 7 is located below the air outlet 3 in terms of orientation.

[0035] The following are some preferred parameter settings for this wind screen:

[0036] The feed port 1 of the inner tube 5 extends 300-500 mm into the inner tube 5, and a bolt-detachable structure is formed between the feed port 1 and the inner tube 5. The distance between the bottom outlet of the feed port 1 and the anti-wear guide component 4 is 400-600 mm.

[0037] The wear-resistant material guide component 4 consists of two parts, a tray 4.1 and a plurality of spiral guide plates 4.2 evenly connected to the bottom of the tray 4.1; the tray 4.1 is a cylindrical short-circuit structure, and the bottom is blocked by a flat plate; the plurality of spiral guide plates 4.2 are parallel to each other and spiral downward at the same angle inside the inner cylinder 5; the spiral guide plates 4.2 are 50 to 200 mm high, with a spiral angle of 20 to 60°, and a spacing of 15 to 45° between each spiral guide plate 4.2, that is, a plurality of spiral guide plates 4.2 are distributed along the circumference of the tray 4.1, and the angular spacing of each spiral guide plate 4.2 along the circumference is 15 to 45°.

[0038] The principle of the anti-wear material guiding component 4 is: the material enters the inner tube 5 from the feed port 1 and falls onto the tray 4.1 below the feed port 1. When the tray 4.1 is full of material, it will overflow and flow down to the spiral guide plate 4.2, and the spiral guide plate 4.2 will guide the material. This process blocks the direct contact between the material and the wall of the inner tube 5, prevents the wear of the inner wall of the inner tube 5, realizes the anti-wear requirements, and also meets the material guiding requirements, and the tray 4.1 and the spiral guide plate 4.2 are both made of carbon steel.

[0039] The width of the jacket cavity 9 formed between the inner cylinder 5 and the outer cylinder 6 is 50-300 mm. The diameter and cylinder height of the wind screen inner cylinder 5 are ≥500 mm. The bottoms of the inner cylinder 5 and the outer cylinder 6 are both cone-section structures with a semi-cone angle of 20-60°. The air outlet 3 on the inner cylinder 5 is arranged upwardly tilted, and the angle between the air outlet 3 and the horizontal direction is 35-65°.

[0040] The utility model discloses an air screen for removing carbon powder mixed with activated coke, wherein an inner cylinder 5 is fixed inside an outer cylinder 5 to form a jacket cavity 9. The activated coke solid material mixed with carbon powder enters the inner cylinder 5 from a feed port 1 on the inner cylinder 5, moves downward through an internal anti-wear material guide component 4, and then flows out from a discharge air inlet 2 at the bottom of the inner cylinder. The air inlet 7 on the outer cylinder 6 is connected to a pumping gas device, and gas enters from the air inlet 7, enters the inner cylinder 5 from the discharge air inlet 2 at the bottom of the inner cylinder 5 along a jacket cavity 9 between the inner and outer cylinders, and flows out from a gas outlet 3 on the inner cylinder 5 from bottom to top. In the process of contact between the activated coke particles and the gas, the carbon powder is carried away by the gas and enters a subsequent processing device, thereby realizing the removal of the carbon powder in the activated coke particles.

[0041] The utility model can effectively remove carbon powder impurities mixed in activated coke solid particles and realize online removal of carbon powder, which has great practical significance for devices that are adversely affected by the presence of carbon powder, such as activated coke flue gas purification devices.

[0042] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A wind screen for removing carbon powder mixed with activated coke, characterized in that: include: The inner cylinder (5) is used to provide a falling channel for the activated coke solid material mixed with carbon powder, and the inner cylinder (5) is provided with a feed inlet (1) at the top and a discharge air inlet (2) at the bottom; The outer cylinder (6) is sleeved on the outside of the inner cylinder (5), and a jacket cavity (9) is formed between the inner wall of the outer cylinder (6) and the outer wall of the inner cylinder (5); a discharge port (8) corresponding to the discharge air inlet (2) is provided at the bottom of the outer cylinder (6), and the air screen is installed on the activated coke circulation device through the discharge port (8); An air inlet (7) is installed on the side wall of the outer tube (6) and is used to introduce gas into the jacket cavity (9) through the air inlet (7); An air outlet (3) is installed at the portion of the inner cylinder (5) extending out of the outer cylinder (6) and is used to allow the gas containing the carbon powder to flow out through the air outlet (3); An anti-wear material guiding component (4) is installed inside the inner cylinder (5) and is used to guide the material; The anti-wear material guiding component (4) comprises: A tray (4.1) with an open top and arranged below the bottom outlet of the feed inlet (1) for receiving materials; A plurality of spiral guide plates (4.2) are provided, and the plurality of spiral guide plates (4.2) are evenly connected to the bottom of the tray (4.1) and are parallel to each other, and are used for guiding flow; The spiral guide plate (4.2) is a plate-like structure extending in a continuous Z shape.

2. The air screen for removing carbon powder mixed with activated coke according to claim 1, characterized in that: The tray (4.1) and the spiral guide plate (4.2) are both made of carbon steel.

3. The air screen for removing carbon powder mixed with activated coke according to claim 1, characterized in that: The air outlet (3) is arranged to be inclined upward.

4. The air screen for removing carbon powder mixed with activated coke according to claim 1, characterized in that: The bottoms of the inner cylinder (5) and the outer cylinder (6) are both cone-section structures.

5. The air screen for removing carbon powder mixed with activated coke according to claim 1, characterized in that: The bottom outlet of the feed port (1) extends to the interior of the inner tube (5).

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