Gas distributor for fluidizing chlorination furnace

Abstract

The utility model relates to the technical field of gas distributors, and discloses a gas distributor for a fluidizing chlorination furnace, which comprises a main pipe, the front end and the rear end of the outer wall of the main pipe are fixedly sleeved with ring pieces, the end part of the main pipe is fixedly connected with a gas injection pipe, and the end part of the gas injection pipe far away from the main pipe is fixedly connected with a joint. A plurality of distribution pipes are rotationally connected to the left side and the right side of the outer wall of the main pipe. According to the gas distributor for the fluidizing chlorination furnace, through cooperation of a main pipe, a ring piece, a gas injection pipe, a connector, a distribution pipe, gas injection holes and a transmission unit, an impeller and a reciprocating groove rod can rotate, the reciprocating groove rod in the rotating state can drive a sleeve, and the sleeve, a supporting block, a transverse plate and a toothed strip can intermittently move; the toothed rack in a moving state can perform meshing transmission on the toothed ring, so that the toothed ring and the distribution pipe can intermittently swing, the gas spraying range of the gas spraying holes can be expanded due to swing of the distribution pipe during the period, and full contact between gas and materials is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gas distributors, in particular to a gas distributor for a fluidized bed chlorination furnace. Background Technique

[0002] The gas distributor of the fluidized bed chlorination furnace is a key device for evenly distributing gas in the fluidized bed chlorination furnace. Its function is to evenly introduce gas (such as chlorine gas) into the fluidized bed layer of the chlorination furnace to ensure the full fluidization and efficient reaction of the materials in the furnace. During the fluidized bed chlorination process, the even distribution of gas is crucial for the reaction efficiency and product quality.

[0003] The gas distributor usually consists of components such as a gas distribution chamber, distribution pipes, nozzles or air holes. The gas enters the distribution chamber through the intake pipe and then is evenly sprayed into the furnace through the distribution pipes and nozzles or air holes.

[0004] However, the current gas distributors have certain deficiencies during use. For example, the spraying range of the gas during gas delivery (simple fan-shaped or linear) is relatively ordinary, which is not conducive to full contact with the materials. In addition, the materials are likely to block the spray holes during falling, and the subsequent maintenance frequency is also relatively high, affecting the overall performance of the fluidized bed chlorination furnace. Content of the Utility Model

[0005] The purpose of the utility model is to provide a gas distributor for a fluidized bed chlorination furnace, which can improve the spraying range of the gas from the spray holes, is conducive to full contact between the gas and the materials, can effectively prevent the spray holes from being blocked during the falling of the materials, reduce the subsequent maintenance frequency, and is conducive to the overall stable operation of the fluidized bed chlorination furnace, so as to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A gas distributor for a fluidized bed chlorination furnace includes a main pipe. Ring plates are fixedly sleeved on both the front and rear ends of the outer wall of the main pipe. An injection pipe is fixedly connected to the end of the main pipe. A joint is fixedly connected to the end of the injection pipe away from the main pipe. A plurality of distribution pipes are rotatably connected to both the left and right sides of the outer wall of the main pipe. A plurality of spray holes are formed on the outer wall of the distribution pipes. A transmission unit is arranged inside the main pipe. An anti-blocking unit is arranged on the inner wall of the spray holes.

[0007] Preferably, the transmission unit comprises: a reciprocating groove rod, which is located inside the main pipe, the top of the reciprocating groove rod is fixedly connected to an impeller, the top of the outer wall of the reciprocating groove rod is rotatably connected to a ring, the left and right sides of the outer wall of the ring are fixedly connected to cross bars, the cross bar is fixedly connected to the main pipe, the bottom end of the outer wall of the cross bar is fixedly connected to a vertical rod, the outer wall of the vertical rod is sleeved with a sleeve, the end of the sleeve is fixedly connected to a cross plate, the outer wall of the cross plate is fixedly sleeved with a support block, the end of the support block is fixedly connected with a sleeve, the inner wall of the sleeve is slidably connected to the reciprocating groove rod, the two ends of the cross plate are fixedly connected with toothed strips, the upper part of the toothed strip is meshingly connected with a toothed ring, and the inner wall of the toothed ring is fixedly connected to the outer wall of the gas injection pipe.

[0008] Preferably, an insert rod is provided on the inner wall of the tooth bar, a bracket is fixedly connected to the bottom end of the insert rod, and the bracket is fixedly connected to the main pipe.

[0009] Preferably, the outer wall of the distribution pipe is covered with a protective sleeve, and the protective sleeve is fixedly connected to the main pipe.

[0010] Preferably, a filter is provided at the end of the joint away from the gas injection pipe.

[0011] Preferably, the anti-blocking unit includes a spherical ball, which is attached to the inner wall of the jet hole, the outer wall of the spherical ball is fixedly connected with a square rod, the outer wall of the square rod is sleeved with a square tube, the square tube is fixedly connected to the contact surface of the distribution pipe, the outer wall of the square tube is fixedly sleeved with a disc, and a tension spring is fixedly connected between the disc and the spherical ball.

[0012] Preferably, the distribution pipe is a double-layer arc structure welded together.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the gas distributor for the boiling chlorination furnace has the following advantages over the traditional technology:

[0014] Through the coordination among the main pipe, the ring sheet, the gas injection pipe, the joint, the distribution pipe, the gas jet hole and the transmission unit, during the subsequent operation of the boiling chlorination furnace, the gas injection pipe is connected to the external gas supply pipeline through the joint, and gas is injected into the inside of the gas injection pipe, the main pipe and the distribution pipe. The gas can then be ejected from the gas jet hole to contact with the material to ensure sufficient fluidization and efficient reaction of the material in the furnace. During this process, the injected gas can impact the impeller while flowing inside the main pipe. Under the influence of this force, the impeller and the reciprocating groove rod can rotate. The reciprocating groove rod in the rotating state will drive the sleeve, so that the sleeve, the support block, the cross plate and the tooth bar can move intermittently. The tooth bar in the moving state can mesh the gear ring, so that the gear ring and the distribution pipe can swing intermittently. During this period, the swing of the distribution pipe can increase the jet range of the gas jet hole, which is conducive to full contact between the gas and the material.

[0015] Through the cooperation among the main pipe, the ring piece, the injection pipe, the joint, the distribution pipe, the air injection holes and the anti-blocking unit, after the air pressure inside the distribution pipe increases, the air pressure will push the spherical ball out of the air injection holes. During this process, when the air flow is ejected, an outward air pressure will be generated at the air injection holes. When the material falls towards the air injection holes, it will be affected by this air pressure and the material will not enter the interior of the air injection holes. When the air pressure ejected from the air injection holes is relatively small, the pulling force generated by the tension spring on the spherical ball will pull the spherical ball back into the air injection holes. Subsequently, when the air pressure ejected from the air injection holes is relatively small, it will not cause the material to block the air injection holes or drop into the interior of the distribution pipe, reducing the subsequent maintenance frequency and facilitating the overall stable operation of the fluidized bed chlorination furnace. Description of the Drawings

[0016] In combination with the drawings and with reference to the following specific embodiments, the above and other features, advantages and aspects of the various embodiments of the present disclosure will become more apparent. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic and the original components and elements are not necessarily drawn to scale.

[0017] Figure 1 Structural schematic diagram of the utility model;

[0018] Figure 2 is Figure 1 front partial sectional view;

[0019] Figure 3 is Figure 2 enlarged view at A in

[0020] Figure 4 is Figure 2 top view of the sleeve, the cross plate and the toothed bar in

[0021] Figure 5 is Figure 2 side sectional view of the distribution pipe and the spherical ball in

[0022] In the figure: 1, main pipe; 2, ring piece; 3, injection pipe; 4, joint; 5, distribution pipe; 6, air injection holes; 7, reciprocating groove rod; 8, impeller; 9, collar; 10, cross bar; 11, vertical bar; 12, sleeve bar; 13, cross plate; 14, support block; 15, sleeve; 16, toothed bar; 17, insertion rod; 18, support; 19, toothed ring; 20, protection cylinder; 21, filter disc; 22, spherical ball; 23, square rod; 24, square cylinder; 25, round disc; 26, tension spring. Specific Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-5 , the present invention provides a technical solution: a gas distributor for a fluidized bed chlorination furnace, including a main pipe 1. Ring plates 2 are fixedly sleeved on the front and rear ends of the outer wall of the main pipe 1. An injection pipe 3 is fixedly connected to the end of the main pipe 1. A joint 4 is fixedly connected to the end of the injection pipe 3 away from the main pipe 1. A plurality of distribution pipes 5 are rotatably connected to the left and right sides of the outer wall of the main pipe 1. A plurality of spray holes 6 are formed on the outer wall of the distribution pipe 5. A transmission unit is provided inside the main pipe 1, and an anti-blocking unit is provided on the inner wall of the spray hole 6.

[0025] In the specific implementation process, it is particularly pointed out that the ring plate 2 can be penetrated by bolts, and then the bolts are connected to the fluidized bed chlorination furnace, so that the structure of the gas distributor for the fluidized bed chlorination furnace can be installed at a suitable position inside the fluidized bed chlorination furnace. Then, the injection pipe 3 is connected to an external gas supply device (chlorine gas) through the joint 4. During the subsequent operation of the fluidized bed chlorination furnace, the injection pipe 3 is connected to an external gas supply pipeline through the joint 4 to inject gas into the injection pipe 3, the main pipe 1 and the distribution pipes 5. The gas can then be ejected from the spray holes 6 to contact the material, so as to ensure the full fluidization of the material in the furnace (the uniformly distributed gas flow makes the solid particles in the furnace, such as ores, coke, etc., fully fluidize, forming a boiling-like state, thereby increasing the gas-solid contact area and improving the reaction efficiency) and efficient reaction. The distribution pipes 5 are rotatably connected to the main pipe 1 through high-temperature-resistant sealed bearings. The high-temperature-resistant sealed bearings are made of heat-resistant bearing steel (high-temperature bearing steel). This kind of steel has sufficiently high high-temperature hardness, wear resistance, contact fatigue strength, oxidation resistance and high-temperature dimensional stability. Common high-temperature-resistant bearing steels include high-speed steel, high-chromium martensitic stainless steel and high-temperature carburized steel, etc. High-temperature sealed bearings usually have sealing rings or seals installed on both the inner and outer sides to prevent lubricant leakage and external impurities from invading the bearing interior, ensuring the long-term stable operation of the bearings in a high-temperature environment.

[0026] Further, the transmission unit includes: a reciprocating groove rod 7 located inside the main pipe 1. An impeller 8 is fixedly connected to the top end of the reciprocating groove rod 7. A collar 9 is rotatably connected to the top end of the outer wall of the reciprocating groove rod 7. Cross bars 10 are fixedly connected to both the left and right sides of the outer wall of the collar 9. The cross bars 10 are fixedly connected to the main pipe 1. A vertical rod 11 is fixedly connected to the bottom end of the outer wall of the cross bar 10. A strip 12 is sleeved on the outer wall of the vertical rod 11. A cross plate 13 is fixedly connected to the end of the strip 12. A support block 14 is fixedly sleeved on the outer wall of the cross plate 13. A sleeve 15 is fixedly connected to the end of the support block 14. The inner wall of the sleeve 15 is slidably connected to the reciprocating groove rod 7. Tooth bars 16 are fixedly connected to both ends of the cross plate 13. A tooth ring 19 is meshed and connected above the tooth bars 16. The inner wall of the tooth ring 19 is fixedly connected to the outer wall of the injection pipe 3.

[0027] In the specific implementation process, it is particularly worth noting that the impeller 8 is composed of multiple curved blades. The shape of the blades (such as spiral, airfoil) can guide the flow direction of the fluid (such as air, water). When the fluid flows through the blades, the surface of the blades is subjected to the combined action of lift and drag. When the fluid flows through the curved surface of the blades, the difference in flow velocity between the upper and lower surfaces leads to a pressure difference, generating a force perpendicular to the flow direction (similar to the principle of an airplane wing). The force parallel to the flow direction generated by the fluid directly impacting the blades, and the resultant force on the blades generates a rotational torque, pushing the impeller to rotate around the axis. The principle of the reciprocating transmission of the reciprocating groove rod 7 to the sleeve 15 is based on the cooperation mechanism between the reciprocating motion of the reciprocating groove rod 7 and the sleeve 15. Through a specific structure, the linear reciprocating motion of the sleeve is realized. The reciprocating groove rod 7 is provided with a groove track with a specific trajectory, such as a spiral groove or a straight groove. The shape of the groove track determines the movement trajectory of the sleeve. The reciprocating groove rod 7 rotates, and the groove track guides the movement of the sleeve. Sliders, pins and other components are installed inside or outside the sleeve 15 and are embedded in the groove track of the groove rod. The groove track restricts the movement direction of the slider or pin, so that the sleeve 15 can only move along the groove track, realizing linear reciprocation. During the flow of the injected gas inside the main pipe 1, the impeller 8 can be impacted. Affected by this force, the impeller 8 and the reciprocating groove rod 7 can rotate. The reciprocating groove rod 7 in the rotating state will drive the sleeve 15, enabling the sleeve 15, the support block 14, the cross plate 13 and the tooth bar 16 to move intermittently. The tooth bar 16 in the moving state can meshingly drive the tooth ring 19, enabling the tooth ring 19 and the distribution pipe 5 to swing intermittently. During this period, due to the swing of the distribution pipe 5, the jet range of the jet holes 6 can be increased, which is conducive to the full contact between the gas and the material.

[0028] Further, an insertion rod 17 is provided on the inner wall of the tooth bar 16. A support 18 is fixedly connected to the bottom end of the insertion rod 17. The support 18 is fixedly connected to the main pipe 1.

[0029] In the specific implementation process, it is particularly worth noting that the outer wall of the insertion rod 17 is in clearance fit with the inner wall of the toothed bar 16. Clearance fit refers to a fit with a clearance (including a minimum clearance equal to zero), which can improve the stability performance of the toothed bar 16 during reciprocating motion to a certain extent and facilitate the stable meshing transmission of the toothed bar 16 to the toothed ring 19.

[0030] Furthermore, a protective cylinder 20 is sleeved on the outer wall of the distribution pipe 5, and the protective cylinder 20 is fixedly connected to the main pipe 1.

[0031] In the specific implementation process, it is particularly worth noting that the protective cylinder 20 can provide a certain degree of protection to the connection between the distribution pipe 5 and the main pipe 1, and can effectively prevent the impact of materials on the connection between the distribution pipe 5 and the main pipe 1.

[0032] Furthermore, a filter disc 21 is provided at the end of the joint 4 away from the injection gas pipe 3.

[0033] In the specific implementation process, it is particularly worth noting that the filter disc 21 is made of stainless steel material with filter holes all over, and the mesh number is 60 mesh - 100 mesh, which can further prevent impurities in the injected gas from entering the interior of the main pipe 1.

[0034] Furthermore, the anti-blocking unit includes a spherical ball 22, the spherical ball 22 fits on the inner wall of the air injection hole 6, a square rod 23 is fixedly connected to the outer wall of the spherical ball 22, a square tube 24 is sleeved on the outer wall of the square rod 23, the contact surface of the square tube 24 and the distribution pipe 5 is fixedly connected, a circular disc 25 is fixedly sleeved on the outer wall of the square tube 24, and a tension spring 26 is fixedly connected between the circular disc 25 and the spherical ball 22.

[0035] In the specific implementation process, it is particularly worth noting that the outer wall of the square rod 23 is in clearance fit with the inner wall of the square tube 24. Clearance fit refers to a fit with a clearance (including a minimum clearance equal to zero), and the elastic coefficient of the tension spring 26 is 0.5N - 15N / CM. When the air pressure ejected from the air injection hole 6 is small, the pulling force generated by the tension spring 26 on the spherical ball 22 will pull the spherical ball 22 back into the air injection hole 6, so that the situation of material blocking the air injection hole 6 or falling into the interior of the distribution pipe 5 due to the small air pressure ejected from the air injection hole 6 will not occur.

[0036] Furthermore, the distribution pipe 5 is formed by welding a double-layer arc structure.

[0037] In the specific implementation process, it is particularly worth noting that it is convenient to install structural components inside the distribution pipe 5 during the generation stage, which is convenient for the smooth progress of the generation operation.

[0038] Working principle:

[0039] Large-range jet operation of the gas distributor for the fluidized bed chlorination furnace:

[0040] First, the user places the overall structure at a suitable position inside the fluidized chlorination furnace and uses bolts to pass through the ring plate 2 to connect it with the fluidized chlorination furnace, completing the installation operation of the overall structure of the gas distributor. During the subsequent operation of the fluidized chlorination furnace, the injection pipe 3 is connected to the external gas supply pipe through the joint 4, and gas is injected into the injection pipe 3, the main pipe 1, and the distribution pipe 5. Then, the gas can be ejected from the injection holes 6 to contact the material to ensure the full fluidization and efficient reaction of the material in the furnace. During the flow of the injected gas inside the main pipe 1, the impeller 8 can be impacted. Affected by this force, the impeller 8 and the reciprocating groove rod 7 can rotate. The reciprocating groove rod 7 in the rotating state will drive the sleeve 15, enabling the sleeve 15, the support block 14, the cross plate 13, and the toothed bar 16 to move intermittently. The toothed bar 16 in the moving state can engage and drive the toothed ring 19, enabling the toothed ring 19 and the distribution pipe 5 to swing intermittently. During this period, due to the swing of the distribution pipe 5, the jet range of the injection holes 6 can be increased, which is conducive to the full contact between the gas and the material.

[0041] Anti-blocking principle of the injection holes on the distribution pipe:

[0042] After the air pressure inside the distribution pipe 5 increases, the air pressure will push the ball 22 out of the injection hole 6. During this process, when the air flow ejects, an outward air pressure will be generated at the injection hole 6. When the material falls towards the injection hole 6, it will be affected by this air pressure and the material will not enter the inside of the injection hole 6. When the air pressure ejected from the injection hole 6 is relatively small, the pulling force generated by the tension spring 26 on the ball 22 will pull the ball 22 back into the injection hole 6. Subsequently, when the air pressure ejected from the injection hole 6 is relatively small (during the gas supply stop stage), the situation where the material blocks the injection hole 6 or falls into the inside of the distribution pipe 5 through the injection hole 6 will not occur, reducing the subsequent maintenance frequency and facilitating the stable operation of the overall fluidized chlorination furnace.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas distributor for a fluidized bed chlorination furnace, comprising a main pipe (1), characterized in that: Ring sheets (2) are fixedly sleeved at both the front and rear ends of the outer wall of the main pipe (1); an air injection pipe (3) is fixedly connected to the end of the main pipe (1); a joint (4) is fixedly connected to the end of the air injection pipe (3) away from the main pipe (1); a plurality of distribution pipes (5) are rotatably connected to the left and right sides of the outer wall of the main pipe (1); a plurality of air injection holes (6) are opened on the outer wall of the distribution pipe (5); a transmission unit is provided inside the main pipe (1); and an anti-blocking unit is provided on the inner wall of the air injection hole (6).

2. The gas distributor for boiling chlorination furnace according to claim 1, wherein: The transmission unit comprises: a reciprocating grooved rod (7), the reciprocating grooved rod (7) being located inside the main pipe (1), the top end of the reciprocating grooved rod (7) being fixedly connected to an impeller (8), the top end of the outer wall of the reciprocating grooved rod (7) being rotatably connected to a collar (9), the left and right sides of the outer wall of the collar (9) being fixedly connected to cross bars (10), the cross bar (10) being fixedly connected to the main pipe (1), the bottom end of the outer wall of the cross bar (10) being fixedly connected to a vertical rod (11), the outer wall of the vertical rod (11) being sleeved with a sleeve strip (12), the end of the sleeve strip (12) is fixedly connected to a transverse plate (13), the outer wall of the transverse plate (13) is fixedly sleeved with a support block (14), the end of the support block (14) is fixedly connected to a sleeve (15), the inner wall of the sleeve (15) is slidably connected to the reciprocating groove rod (7), both ends of the transverse plate (13) are fixedly connected to toothed strips (16), the upper part of the toothed strip (16) is meshingly connected to a toothed ring (19), and the inner wall of the toothed ring (19) is fixedly connected to the outer wall of the gas injection pipe (3).

3. The gas distributor for boiling chlorination furnace according to claim 2 is characterized in that: An insert rod (17) is provided on the inner wall of the tooth bar (16), a bracket (18) is fixedly connected to the bottom end of the insert rod (17), and the bracket (18) is fixedly connected to the main pipe (1).

4. The gas distributor for boiling chlorination furnace according to claim 1, wherein: The outer wall of the distribution pipe (5) is sheathed with a casing (20), and the casing (20) is fixedly connected to the main pipe (1).

5. The gas distributor for boiling chlorination furnace according to claim 1, wherein: A filter (21) is provided at the end of the joint (4) away from the gas injection pipe (3).

6. The gas distributor for boiling chlorination furnace according to claim 1, wherein: The anti-blocking unit comprises a spherical ball (22), the spherical ball (22) being fitted on the inner wall of the air jet hole (6), the outer wall of the spherical ball (22) being fixedly connected to a square rod (23), the outer wall of the square rod (23) being sleeved with a square tube (24), the square tube (24) being fixedly connected to a contact surface of the distribution pipe (5), the outer wall of the square tube (24) being fixedly sleeved with a disc (25), and a tension spring (26) being fixedly connected between the disc (25) and the spherical ball (22).

7. The gas distributor for boiling chlorination furnace according to claim 1, wherein: The distribution pipe (5) is a double-layer arc-shaped structure welded together.

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