Tubular reactor anti-blocking device

Abstract

The invention provides a tubular reactor anti-blocking device which comprises an overflowing box, a liquid inlet pipe connected with a tubular reactor is arranged on one side of the overflowing box, a liquid outlet pipe connected with the tubular reactor is arranged on the other side of the overflowing box, and a flow guide plate located between the liquid inlet pipe and the liquid outlet pipe is arranged at the top of the overflowing box. A sediment bearing plate is rotatably arranged at the side end of the lower portion of the overflowing box, a discharging pipe is arranged at the bottom of the overflowing box, a control valve is arranged on the discharging pipe, and the lower end of the disturbance isolation cover can be further connected with the inner side wall of the overflowing box in a clamped mode. According to the anti-blocking device for the tubular reactor, the basic requirement for preventing the tubular reactor from being blocked can be met, sediment can be rapidly and efficiently discharged, disturbance to upper-layer fluid can be effectively avoided, and then the use requirement of people is more fully met.

Description

Technical Field

[0001] This invention belongs to the field of tubular reactor technology, and specifically relates to an anti-clogging device for tubular reactors. Background Technology

[0002] Because tubular reactors are prone to sedimentation and clogging during certain chemical reactions, it is necessary to clean the sediment from the tubular reactors regularly to ensure the normal progress of the sulfidation reaction. The shutdown process is troublesome and seriously affects production efficiency. Therefore, anti-clogging devices are installed on tubular reactors.

[0003] Existing anti-clogging devices for tubular reactors, while meeting the basic requirement of avoiding clogging, typically rely on rotating the sediment support structure to discharge sediment into the discharge structure. However, to avoid disturbing the fluid flowing above, this usually requires a slow rotation of the sediment support structure. This can result in some viscous sediment not completely detaching from the support structure surface, and the slow rotation means a longer discharge cycle. Although slow rotation reduces fluid disturbance and improves flow stability to some extent, it sacrifices discharge efficiency, thus failing to fully meet user needs. Summary of the Invention

[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing a tubular reactor anti-clogging device, which not only meets the basic requirement of avoiding tubular reactor clogging, but also enables rapid and efficient unloading of sediment, and effectively avoids disturbance to the upper fluid, thereby more fully meeting people's usage needs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a tubular reactor anti-clogging device, including a flow box, an inlet pipe connected to the tubular reactor on one side of the flow box, an outlet pipe connected to the tubular reactor on the other side of the flow box, a guide plate located between the inlet pipe and the outlet pipe at the top of the flow box, a sedimentation support plate rotatably installed at the lower side of the flow box, a discharge pipe installed at the bottom of the flow box, a control valve installed on the discharge pipe, an outward expansion section installed at the middle side of the flow box, and a disturbance isolation cover located above the outward expansion section and capable of vertical sliding in the flow box. The lower end of the disturbance isolation cover can form a sedimentation discharge channel with the outward expansion section, and the lower end of the disturbance isolation cover can also be engaged with the inner wall of the flow box.

[0006] As a further improvement of the present invention, the vertical cross-section of the guide plate is a trapezoidal structure with a smaller top and a larger bottom.

[0007] As a further improvement of the present invention, a first telescopic push rod is also vertically arranged on the flow box, and the output shaft of the first telescopic push rod passes through the top of the flow box and is connected to the top of the disturbance isolation cover.

[0008] As a further improvement of the present invention, a guide tube located next to the first telescopic push rod is also vertically arranged on the top of the flow box, and a guide rod slidably connected to the guide tube is also arranged on the top of the disturbance isolation cover.

[0009] As a further improvement of the present invention, a connecting shaft is provided transversely through and rotatably arranged on the side end of the flow box, the sedimentation support plate is rotatably connected to the connecting shaft, a first mounting bracket is also provided on the outer side wall of the flow box, a first drive motor is provided on the first mounting bracket, and a first coupling is provided between the output shaft of the first drive motor and the connecting shaft.

[0010] As a further improvement of the present invention, the lower end of the flow box is inclined to one side, and the discharge pipe is arranged at the bottom side of the flow box.

[0011] As a further improvement of the present invention, a fixing frame is also provided at the bottom of the filter box, a second telescopic push rod is vertically provided on the fixing frame, a second mounting frame is provided on the output shaft of the second telescopic push rod, a second drive motor is provided on the second mounting frame, and a stirring shaft is provided on the output shaft of the second drive motor through a second coupling, which can be vertically slidably connected and rotatably sealed to the bottom of the filter box. A scraper adapted to the sedimentation support plate is provided on the stirring shaft; stirring blades are also provided on the stirring shaft.

[0012] As a further improvement of the present invention, a through cylinder is provided at the bottom of the filter box, and a sealing ring adapted to the stirring shaft is provided on the inner side wall of the through cylinder.

[0013] As a further improvement of the present invention, the side end of the second mounting bracket is also provided with a guide sleeve that is vertically slidably connected to the side end of the fixed bracket.

[0014] As a further improvement of the present invention, the outer extension section has a V-shaped structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, by installing baffles, expansion sections, and disturbance isolation covers in the flow box, the liquid flow can be guided in a reasonable manner, and the accumulation rate of precipitates in the pipes can be slowed down, thereby significantly reducing the risk of blockage in the tubular reactor.

[0016] Secondly, the device is equipped with a rotatable sedimentation support plate and a controllable discharge pipe. When needed, the discharge can be opened by the control valve, and the first drive motor drives the sedimentation support plate to rotate and tilt the sediment, realizing fast and efficient sedimentation unloading and improving maintenance efficiency.

[0017] Third, the disturbance isolation cover can slide vertically, forming an independent sedimentation and unloading channel in conjunction with the outward expansion section; during the discharge process, the isolation cover can effectively separate the lower sedimentation area from the upper flowing liquid, avoiding disturbance to the upper fluid during the discharge operation, and ensuring the stability and continuity of the reaction process.

[0018] Fourth, the second drive motor drives the scraper to rotate through the stirring shaft, which can not only help suspend the sediment during operation to reduce deposition, but also scrape and clean the surface of the sediment bearing plate when the machine is stopped or the material is discharged, thereby improving the self-cleaning ability and preventing local accumulation and hardening.

[0019] Fifth, a sliding fit structure between the guide sleeve and the guide rod is set to ensure the stability and verticality of the disturbance isolation cover during the lifting process; at the same time, the sliding connection between the guide sleeve and the fixed frame enhances the stability of the stirring system's movement and improves the reliability of equipment operation.

[0020] Sixth, the bottom of the overflow box is tilted to one side and the discharge pipe is set at the lower end, which is conducive to the sediment naturally sliding to the discharge port under the action of gravity. Combined with the stirring and agitation of the scraper and stirring blades, a more thorough discharge effect can be achieved. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the scraper plate of the present invention; Figure 4 This is a schematic diagram of the sealing ring of the present invention.

[0023] In the diagram: 101, overflow box; 102, inlet pipe; 103, outlet pipe; 104, guide plate; 105, sedimentation support plate; 106, discharge pipe; 107, control valve; 108, outer expansion section; 109, disturbance isolation cover; 110, sedimentation unloading channel; 201, first telescopic push rod; 202, guide sleeve; 203, guide rod; 301, connecting shaft; 302, first mounting bracket; 303, first drive motor; 304, first coupling; 401, fixing bracket; 402, second telescopic push rod; 403, second mounting bracket; 404, second drive motor; 405, second coupling; 406, stirring shaft; 407, scraper; 408, stirring blade; 409, through cylinder; 410, sealing ring; 411, guide sleeve. Detailed Implementation

[0024] To better understand the present invention, the following embodiments further illustrate the content of the invention, but the scope of protection of the present invention is not limited to the following embodiments. Numerous specific details are set forth in the following description to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details.

[0025] like Figure 1 As shown, a tubular reactor anti-clogging device includes a flow box 101. An inlet pipe 102 connected to the tubular reactor is provided on one side of the flow box 101, and an outlet pipe 103 connected to the tubular reactor is provided on the other side of the flow box 101. A guide plate 104 is provided at the top of the flow box 101 between the inlet pipe 102 and the outlet pipe 103. A sedimentation support plate 105 is rotatably mounted on the lower side of the flow box 101, and the side end of the sedimentation support plate 105 is arc-shaped. The bottom of the flow box 101 is equipped with a discharge pipe 106, and a control valve 107 is installed on the discharge pipe 106. An expansion section 108 is located at the middle side of the flow box 101. A disturbance isolation cover 109, located above the expansion section 108 and capable of vertical sliding, is also installed in the flow box 101. The lower end of the disturbance isolation cover 109 forms a sedimentation discharge channel 110 with the expansion section 108, and the lower end of the disturbance isolation cover 109 can also engage with the inner wall of the flow box 101. The expansion section 108 has a V-shaped structure. The upper middle part of the disturbance isolation cover 109 is a slanted quadrangular prism, which not only isolates the disturbance generated during the rotation of the sedimentation support plate 105, preventing it from affecting the normal flow of fluid in the upper part of the flow box 101 and the sedimentation and separation of the sediment, but also effectively prevents sediment from accumulating on the disturbance isolation cover 109.

[0026] like Figure 2 As shown, the vertical cross-section of the guide plate 104 is a trapezoidal structure with a smaller top and a larger bottom.

[0027] like Figure 2 As shown, a first telescopic push rod 201 is also vertically arranged on the flow box 101. The output shaft of the first telescopic push rod 201 passes through the top of the flow box 101 and is connected to the top of the disturbance isolation cover 109.

[0028] like Figure 1 , 2 As shown, a guide tube 202 is vertically arranged on the top of the flow box 101, located next to the first telescopic push rod 201. A guide rod 203, which is slidably connected to the guide tube 202, is also arranged on the top of the disturbance isolation cover 109. The structure of the guide tube 202 and the guide rod 203 ensures the stability of the disturbance isolation cover 109 during the lifting process and prevents jamming; and can also prevent the first telescopic push rod 201 from being easily damaged by terrain deformation.

[0029] like Figure 2 , 4 As shown, a connecting shaft 301 is rotatably mounted through the side end of the flow box 101. The sedimentation support plate 105 is rotatably connected to the connecting shaft 301. A first mounting bracket 302 is also provided on the outer wall of the flow box 101. A first drive motor 303 is provided on the first mounting bracket 302. A first coupling 304 is provided between the output shaft of the first drive motor 303 and the connecting shaft 301.

[0030] like Figure 1 As shown, the lower end of the flow box 101 is inclined to one side, and the discharge pipe 106 is located at the bottom side of the flow box 101. The inclination of the bottom of the flow box 101 to one side and the placement of the discharge pipe 106 at the lower end facilitates the natural sliding of the sediment towards the discharge port under gravity. The inclination of the bottom of the flow box 101 to one side and the location of the discharge pipe 106 at the lowest end facilitate the natural collection and complete discharge of the sediment.

[0031] The working process of the anti-clogging device for the tubular reactor is as follows: First, the reaction liquid enters the flow chamber 101 through the inlet pipe 102, passes through the top guide plate 104, and then leaves the flow chamber 101 through the outlet pipe. The vertical cross-section of the guide plate 104 is a trapezoidal structure with a smaller top and a larger bottom, which can extend the flow path of the fluid, effectively disperse the liquid flow rate, and make it easier for the sediment in the fluid to accumulate at the bottom of the flow chamber, preventing the tubular reactor from becoming clogged.

[0032] The disturbance isolation cover 109 is driven by the first telescopic push rod 201 and achieves stable sliding through the guide rod 203 and the top guide cylinder 202. During normal operation, the disturbance isolation cover 109 is in the raised position, leaving a sedimentation discharge channel 110 between it and the outer expansion section 108. The liquid continues to flow forward, enters the outer expansion section 108 in the middle of the flow box 101, passes through the sedimentation discharge channel 110, and settles downward in the flow box 101. The outer expansion section 108 has a V-shaped structure, which further reduces the fluid velocity by increasing the flow cross-sectional area, allowing heavier particles to gradually settle, slowing their accumulation in the downstream pipeline, and preventing blockage; the settled solid particles fall onto the sedimentation support plate 105 at the lower side of the flow box 101.

[0033] When discharge is required, the output shaft of the first telescopic push rod 201 is first controlled to retract, causing the disturbance isolation cover 109 to move downward. With the vertical insertion and cooperation of the guide tube 202 and the guide rod 203, the disturbance isolation cover 109 is stably driven to move vertically upward, so that the lower end of the disturbance isolation cover 109 moves from the position corresponding to the outer expansion section 108 to the position that abuts against the inner side wall of the flow box 101, thereby sealing the upper fluid space and effectively isolating the upper flow area from the lower sedimentation area, ensuring that the liquid flow is not affected by the bottom sediment.

[0034] Then the output shaft of the first drive motor 303 can be driven to rotate, and the connecting shaft 301 and the sedimentation support plate 105 can be driven to rotate through the coupling until the sedimentation support plate 105 completes a 180-degree flip, and the sediment collected by sedimentation is rotated and poured into the lower space of the flow box 101. And by simply opening the control valve 107, the sediment can slide along the bottom of the inclined flow box 101 into the discharge pipe 106 and be discharged.

[0035] During the discharge process, the disturbance isolation cover 109 can seal the upper fluid space, preventing disturbance of the liquid flow and sedimentation separation of the sediment in the liquid during the normal rotation of the sediment support plate 105. This eliminates the need for users to reduce the rotation speed of the sediment support plate 105, thereby avoiding affecting the discharge speed and efficiency of the sediment.

[0036] After the material discharge is completed, the control valve 107 is closed, and the first drive motor 303 drives the sedimentation bearing plate 105 to reset through the first coupling 304. The output shaft of the first telescopic push rod 201 extends downward by a certain length, driving the disturbance isolation cover 109 to move down to the original position corresponding to the outer expansion section 108, and the system resumes continuous operation.

[0037] The entire system combines "anti-clogging in flow + periodic automatic slag discharge" to improve the continuity and safety of tubular reactor operation. Through reasonable flow channel design, dynamic disturbance isolation mechanism and driveable discharge structure, the device achieves effective management of precipitates in tubular reactor, significantly reduces the risk of clogging, and improves maintenance efficiency and process stability.

[0038] According to another embodiment of the invention, such as Figure 3 As shown, a fixed frame 401 is also provided at the bottom of the filter box. A second telescopic push rod 402 is vertically provided on the fixed frame 401. A second mounting frame 403 is provided on the output shaft of the second telescopic push rod 402. A second drive motor 404 is provided on the second mounting frame 403. A stirring shaft 406 is provided on the output shaft of the second drive motor 404 through a second coupling 405. It can be vertically slidably connected and rotatably sealed to the bottom of the filter box. A scraper 407 adapted to the sedimentation support plate 105 is provided on the stirring shaft 406. A stirring blade 408 is also provided on the stirring shaft 406.

[0039] like Figure 3 , 4 As shown, a through cylinder 409 is provided at the bottom of the filter box, and a sealing ring 410 adapted to the stirring shaft 406 is provided on the inner side wall of the through cylinder 409.

[0040] like Figure 3As shown, the side end of the second mounting bracket 403 is also provided with a guide sleeve that is vertically slidably connected to the side end of the fixed bracket 401.

[0041] During the process of unloading sediment by flipping the sediment bearing plate 105 so that the bearing surface faces downward, the output axis of the second telescopic push rod 402 can be extended upward, driving the second drive motor 404 to move upward until the scraper plate 407 abuts against the bearing surface of the sediment bearing plate 105. Then, the second drive motor 404 can be driven to drive the stirring shaft 406 to rotate through the second coupling 405, driving the scraper plate 407 and stirring blade 408 to rotate. This not only scrapes and cleans the surface of the sediment bearing plate 105, improving the thoroughness of unloading, but also improves the efficiency and thoroughness of discharge by agitating the fluid and sediment in the lower part of the flow box 101 through the scraper plate 407 and stirring blade 408, preventing local accumulation and hardening.

[0042] The sliding engagement between the guide sleeve and the fixed frame 401 enhances the stability of the second drive motor 404 and prevents the second telescopic push rod 404 from being easily damaged by terrain changes.

[0043] The above are preferred embodiments of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A tubular reactor anti-clogging device, comprising a flow box (101), an inlet pipe (102) connected to the tubular reactor on one side of the flow box (101), an outlet pipe (103) connected to the tubular reactor on the other side of the flow box (101), and a guide plate (104) located between the inlet pipe (102) and the outlet pipe (103) on the top of the flow box (101), characterized in that: A sedimentation support plate (105) is rotatably provided on the lower side of the flow box (101). A discharge pipe (106) is provided at the bottom of the flow box (101). A control valve (107) is provided on the discharge pipe (106). An expansion section (108) is provided on the middle side of the flow box (101). A disturbance isolation cover (109) located on the upper side of the expansion section (108) and capable of vertical sliding is also provided in the flow box (101). The lower end of the disturbance isolation cover (109) can form a sedimentation discharge channel (110) with the expansion section (108). The lower end of the disturbance isolation cover (109) can also be engaged with the inner wall of the flow box (101).

2. The anti-clogging device for a tubular reactor as described in claim 1, characterized in that: The vertical cross-section of the guide plate (104) is a trapezoidal structure with a smaller top and a larger bottom.

3. The anti-clogging device for the tubular reactor as described in claim 2, characterized in that: The flow box (101) is also vertically provided with a first telescopic push rod (201), the output shaft of which passes through the top of the flow box (101) and is connected to the top of the disturbance isolation cover (109).

4. The anti-clogging device for the tubular reactor as described in claim 3, characterized in that: The top of the overflow box (101) is also vertically provided with a guide tube (202) located next to the first telescopic push rod (201), and the top of the disturbance isolation cover (109) is also provided with a guide rod (203) that is slidably connected to the guide tube (202).

5. The anti-clogging device for a tubular reactor as described in claim 1, characterized in that: The side end of the flow box (101) is transversely connected to a connecting shaft (301), the sedimentation support plate (105) is rotatably connected to the connecting shaft (301), and a first mounting bracket (302) is also provided on the outer side wall of the flow box (101). A first drive motor (303) is provided on the first mounting bracket (302), and a first coupling (304) is provided between the output shaft of the first drive motor (303) and the connecting shaft (301).

6. The anti-clogging device for a tubular reactor as described in claim 1, characterized in that: The lower end of the flow box (101) is tilted to one side, and the discharge pipe (106) is located at the bottom side of the flow box (101).

7. The anti-clogging device for a tubular reactor as described in claim 6, characterized in that: The bottom of the filter box is also provided with a fixed frame (401), and a second telescopic push rod (402) is vertically provided on the fixed frame (401). A second mounting frame (403) is provided on the output shaft of the second telescopic push rod (402). A second drive motor (404) is provided on the second mounting frame (403). A stirring shaft (406) that can be vertically slidably connected and rotatably sealed connected to the bottom of the filter box is provided on the output shaft of the second drive motor (404) through a second coupling (405). A scraper (407) that is adapted to the sedimentation support plate (105) is provided on the stirring shaft (406). A stirring blade (408) is also provided on the stirring shaft (406).

8. The anti-clogging device for a tubular reactor as described in claim 7, characterized in that: The bottom of the filter box is provided with a through cylinder (409), and the inner side wall of the through cylinder (409) is provided with a sealing ring (410) that is compatible with the stirring shaft (406).

9. The anti-clogging device for a tubular reactor as described in claim 7 or 8, characterized in that: The second mounting bracket (403) is also provided with a guide sleeve that is vertically slidably connected to the side end of the fixed bracket (401).

10. The anti-clogging device for a tubular reactor as described in claim 1, characterized in that: The extended section (108) has a V-shaped structure.

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