Urea production tail gas anti-conglomeration mechanism

Abstract

The utility model discloses a kind of urea production tail gas anti-aggregation mechanisms, it is related to urea production technical field.The utility model includes exhaust cylinder, the left side fixedly connected with air inlet pipe of exhaust cylinder, the right side fixedly connected with drain pipe and water inlet pipe of exhaust cylinder, the top fixedly connected with exhaust pipe of exhaust cylinder, further include: filler part, the filler part is installed on exhaust cylinder, the filler part is used to pass through filler and adsorb impurity on waste gas;And locking part.The utility model is through setting locking part, specifically is to rotate handle counterclockwise, then threaded rod will be pushed to mobile plate by convex axle and limit ring to front, then buckle plate leaves fixed clamping block, to release the fixation of filler box, subsequently buckle plate is pushed up and separates from fixed clamping block, again operate in the same way on the other side, subsequently pull handle on baffle, filler box can be taken out, subsequent replacement filler etc. Operation is convenient, this mode is more convenient to disassemble, easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of urea production technology, and in particular relates to a mechanism for preventing the agglomeration of tail gas during urea production. Background Technology

[0002] The urea production tail gas anti-agglomeration mechanism is an environmental protection technology system used to control ammonia emissions in urea production tail gas. It mainly targets the need for efficient absorption and compliance with emission standards for high concentrations of ammonia in tail gas.

[0003] Traditional urea production exhaust gas is typically discharged into an exhaust stack, where it is then treated by passing through two layers of packing material (such as ceramic or metal packing). Water is also used to ensure full contact between the water and the exhaust gas, removing ammonia through physical adsorption and chemical reaction. However, as the exhaust gas is treated, a large amount of impurities accumulate on the packing material, requiring replacement. The packing material is usually placed in a storage box, which is installed on the exhaust stack using multiple bolts. Disassembly requires finding suitable wrenches and other tools to remove the bolts, making subsequent replacement difficult and inefficient. Utility Model Content

[0004] The purpose of this utility model is to provide a mechanism to prevent the agglomeration of urea production exhaust gas. By setting a locking part, specifically by turning the handle counterclockwise, the threaded rod will push the moving plate forward through the convex shaft and the limiting ring, thus releasing the buckle plate from the fixing block and releasing the packing box. Then, push the buckle plate upward to disengage it from the fixing block, and then operate in the same way on the other side. Finally, pull the handle on the baffle to remove the packing box, which facilitates subsequent packing replacement and other operations. This method is more convenient to disassemble and operate. It solves the problem that the storage box is installed on the exhaust pipe with multiple bolts, and it is necessary to find suitable wrenches and other tools to remove the bolts during disassembly, which makes subsequent replacement difficult.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a mechanism for preventing the agglomeration of tail gas in urea production, comprising an exhaust pipe, an air inlet pipe fixedly connected to the left side of the exhaust pipe, a drain pipe and a water inlet pipe fixedly connected to the right side of the exhaust pipe, and an exhaust pipe fixedly connected to the top of the exhaust pipe, and further comprising:

[0007] A packing section, mounted on an exhaust stack, is used to adsorb impurities from the exhaust gas; and

[0008] A locking part is installed on the outside of the exhaust pipe, and the locking part is used to lock and fix the packing part.

[0009] The air intake pipe is used to transport exhaust gas into the exhaust stack, the drain pipe is used to discharge water, and the water inlet pipe is used to transport water.

[0010] Furthermore, several spray pipes are installed at the end of the water inlet pipe. The spray pipes are located inside the exhaust stack and are used to spray water to wash the particulate matter in the exhaust gas. After the exhaust gas is treated by adsorption in the packing section and sprayed by the spray pipes, it will be discharged from the exhaust pipe.

[0011] Furthermore, the packing part includes a packing box inserted into the exhaust stack, a baffle is fixedly connected to the front of the packing box, a fixing block is fixedly connected to the left and right sides of the baffle, and a sealing strip is sleeved on the inner side of the baffle;

[0012] The sealing strip contacts the exhaust pipe for sealing, and the bottom of the stuffing box is provided with a leakage hole.

[0013] Furthermore, the locking part includes a fixing bracket fixedly connected to the back of the exhaust pipe, a threaded rod internally connected to the fixing bracket, and a throttle fixedly connected to the back of the threaded rod; and

[0014] A tensioning assembly is mounted in front of the fixing frame and is used to pull and lock the baffle.

[0015] The fixing frame is used to support the threaded rod and the tensioning assembly. When the threaded rod rotates, it will drive the tensioning assembly to move forward or backward.

[0016] Furthermore, the tensioning assembly includes a movable plate disposed on the front side of the threaded rod, a buckle plate disposed on the outer side of the movable plate, a buckle groove being provided at the bottom of the buckle plate, a fixed shaft being rotatably connected inside the buckle plate, the fixed shaft being fixedly connected to the surface of the movable plate, and a limit ring and a limit rod being fixedly connected to the front side of the movable plate respectively.

[0017] The buckle plate is inserted into the fixing block through a buckle groove, and the fixing shaft is used to support the buckle plate and make the buckle plate flip so that it can be easily removed from the fixing block.

[0018] Furthermore, a convex shaft is fixedly connected to the front of the threaded rod. The convex shaft rotates inside the limiting ring. The threaded rod pulls the limiting ring to move through the convex shaft, and at the same time drives the moving plate to move together.

[0019] Furthermore, the limiting rod slides through the fixed frame and extends to the outside, and the limiting rod is used to support the moving plate and limit the movement of the moving plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model features a locking mechanism. Specifically, when the handle is turned counterclockwise, the threaded rod pushes the moving plate forward through the convex shaft and the limiting ring, causing the buckle plate to disengage from the fixing block and thus releasing the packing box. Then, the buckle plate is pushed upward to disengage from the fixing block, and the other side is operated in the same way. Finally, the handle on the baffle is pulled to remove the packing box, facilitating subsequent packing replacement and other operations. This method is more convenient for disassembly and is simple and convenient to operate.

[0022] 2. This utility model uses a baffle to insert the packing box into the exhaust pipe. Then, the sealing strip on the baffle contacts the surface of the exhaust pipe, thus achieving a sealing effect. Then, the buckle is rotated and the buckle groove is inserted into the fixing block. By pulling, the packing box is locked and fixed, and the baffle is also pulled and locked, and the sealing strip is squeezed to make the sealing strip fit tightly, thus improving the sealing effect.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0026] Figure 2 This is a front view cross-sectional structural diagram of the exhaust pipe of this utility model;

[0027] Figure 3 This is a schematic diagram of the overall structure of the locking part of this utility model;

[0028] Figure 4 This is a schematic diagram of the overall structure of the stuffing box of this utility model;

[0029] Figure 5 This is a schematic diagram of the overall structure of the tensioning component of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Exhaust pipe; 11. Air inlet pipe; 12. Drain pipe; 13. Water inlet pipe; 131. Spray pipe; 14. Exhaust pipe; 2. Packing section; 21. Packing box; 22. Baffle; 23. Fixing block; 24. Sealing strip; 3. Locking part; 31. Fixing bracket; 32. Threaded rod; 321. Protruding shaft; 33. Turning handle; 34. Tensioning assembly; 341. Moving plate; 342. Buckle plate; 343. Buckle groove; 344. Fixing shaft; 345. Limiting ring; 346. Limiting rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0033] Please see Figures 1-5 As shown, this utility model is a mechanism for preventing the agglomeration of tail gas in urea production, including an exhaust pipe 1, an air inlet pipe 11 fixedly connected to the left side of the exhaust pipe 1, a drain pipe 12 and a water inlet pipe 13 fixedly connected to the right side of the exhaust pipe 1, and an exhaust pipe 14 fixedly connected to the top of the exhaust pipe 1. It also includes:

[0034] Packing section 2, installed on exhaust stack 1, is used to adsorb impurities on the exhaust gas through packing material; and

[0035] Locking part 3 is installed on the outside of the exhaust pipe 1 and is used to lock and fix the packing part 2.

[0036] The intake pipe 11 is used to transport exhaust gas into the exhaust stack 1, the drain pipe 12 is used to discharge water, and the water inlet pipe 13 is used to transport water.

[0037] Several spray pipes 131 are installed at the end of the water inlet pipe 13. The spray pipes 131 are located inside the exhaust pipe 1. The spray pipes 131 are used to spray water to wash the particulate matter in the exhaust gas. After the exhaust gas is adsorbed by the packing part 2 and sprayed by the spray pipes 131, it will be discharged from the exhaust pipe 14.

[0038] The packing section 2 includes a packing box 21 inserted into the exhaust pipe 1. A baffle 22 is fixedly connected to the front of the packing box 21. Fixing blocks 23 are fixedly connected to the left and right sides of the baffle 22. A sealing strip 24 is sleeved on the inner side of the baffle 22. The height of the baffle 22 is greater than the height of the packing box 21. The packing box 21 is inserted into the exhaust pipe 1 through the front of the exhaust pipe 1. Then the sealing strip 24 on the baffle 22 contacts the surface of the exhaust pipe 1, thereby achieving a sealing effect. Then the buckle 342 is rotated, and the buckle groove 343 is inserted into the fixing block 23. By pulling the fixing block 23 through the buckle 342, the packing box 21 is locked and fixed. The baffle 22 is also pulled and locked along with the packing box 21, and the sealing strip 24 is squeezed, so that the sealing strip 24 is in a tight state, improving the sealing effect.

[0039] The sealing strip 24 contacts the exhaust pipe 1 for sealing, and the bottom of the stuffing box 21 is provided with a leakage hole.

[0040] The locking part 3 includes a fixing bracket 31 fixedly connected to the back of the exhaust pipe 1, a threaded rod 32 threadedly connected inside the fixing bracket 31, and a handle 33 fixedly connected to the back of the threaded rod 32; and

[0041] Tensioning assembly 34 is installed in front of the fixing frame 31 and is used to pull and lock the baffle 22.

[0042] The fixing bracket 31 is used to support the threaded rod 32 and the tensioning assembly 34. When the threaded rod 32 rotates, it will drive the tensioning assembly 34 to move forward or backward.

[0043] The tensioning assembly 34 includes a movable plate 341 disposed on the front of the threaded rod 32. A buckle plate 342 is disposed on the outer side of the movable plate 341. A buckle groove 343 is opened at the bottom of the buckle plate 342. A fixed shaft 344 is rotatably connected inside the buckle plate 342. The fixed shaft 344 is fixedly connected to the surface of the movable plate 341. A limit ring 345 and a limit rod 346 are fixedly connected to the front of the movable plate 341 respectively. When the handle 33 is turned counterclockwise, the threaded rod 32 will push the movable plate 341 forward through the convex shaft 321 and the limit ring 345. The buckle plate 342 will then leave the fixed block 23, thereby releasing the fixation of the packing box 21. Then, the buckle plate 342 will be pushed upward to disengage from the fixed block 23. The same operation will be carried out on the other side. Then, the handle on the baffle 22 will be pulled to remove the packing box 21, which is convenient for subsequent packing replacement and other operations. This method is more convenient to disassemble and simple to operate.

[0044] The buckle plate 342 is inserted into the fixing block 23 through the buckle groove 343, and the fixing shaft 344 is used to support the buckle plate 342 and make the buckle plate 342 flip so that it can be easily removed from the fixing block 23.

[0045] The threaded rod 32 is fixedly connected to the front of the convex shaft 321. The convex shaft 321 rotates inside the limiting ring 345. The threaded rod 32 pulls the limiting ring 345 to move through the convex shaft 321, and at the same time drives the moving plate 341 to move together.

[0046] The limiting rod 346 slides through the fixed frame 31 and extends to the outside. The limiting rod 346 is used to support the moving plate 341 and limit the movement of the moving plate 341.

[0047] One specific application of this embodiment is:

[0048] In use, the exhaust gas enters the exhaust stack 1 through the inlet pipe 11 and flows upward. The water inlet pipe 13 is used to connect the water delivery pipe so that the water is delivered to the spray pipe 131 and then sprayed out to mix with the exhaust gas. The sprayed water is discharged from the drain pipe 12. After the exhaust gas enters the exhaust stack 1, it will be adsorbed by the packing on the two packing boxes 21. The lower packing section is used to initially absorb high concentration ammonia, and the upper packing section further treats the escaped low concentration ammonia. The packing box 21 contains ceramic or metal packing. The treated exhaust gas will be discharged through the exhaust pipe 14.

[0049] When the packing in the stuffing box 21 needs to be replaced, turn the handle 33 counterclockwise. The threaded rod 32 will push the moving plate 341 forward through the convex shaft 321 and the limiting ring 345. The convex shaft 321 will rotate within the limiting ring 345. When the moving plate 341 moves, it will drive the limiting rod 346 to slide on the fixed frame 31, causing the moving plate 341 to move linearly. By moving the moving plate 341 forward, the buckle plate 342 will disengage from the fixed block 23, thereby releasing the fixation of the stuffing box 21. Then, push the buckle plate 342 upward, and the buckle plate 342 will rotate on the fixed shaft 344. At this time, the buckle plate 342 will be completely disengaged from the fixed block 23. Then, turn the other side... The same operation is followed by pulling the handle on the baffle 22 to remove the packing box 21, facilitating subsequent packing replacement and other operations. When it is necessary to install the packing box 21, insert the packing box 21 into the exhaust pipe 1. Then, the sealing strip 24 on the baffle 22 contacts the surface of the exhaust pipe 1, thereby achieving a sealing effect. Then, rotate the buckle 342 to make the buckle groove 343 engage with the fixing block 23. Then, turn the handle 33 clockwise to drive the threaded rod 32 to rotate together. The convex shaft 321 will pull the moving plate 341 through the limit ring 345, and the buckle 342 will pull the fixing block 23, thereby locking the packing box 21 onto the exhaust pipe 1, thus completing the installation.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mechanism for preventing coalescence in urea production tail gas, comprising an exhaust pipe (1), an air inlet pipe (11) fixedly connected to the left side of the exhaust pipe (1), a drain pipe (12) and a water inlet pipe (13) fixedly connected to the right side of the exhaust pipe (1), and an exhaust pipe (14) fixedly connected to the top of the exhaust pipe (1), characterized in that, Also includes: A packing section (2), which is installed on the exhaust stack (1), is used to adsorb impurities on the exhaust gas through the packing material; and Locking part (3), the locking part (3) is installed on the outside of the exhaust pipe (1), the locking part (3) is used to lock and fix the packing part (2); The air inlet pipe (11) is used to transport exhaust gas into the exhaust stack (1), the drain pipe (12) is used to discharge water, and the water inlet pipe (13) is used to transport water. The packing part (2) includes a packing box (21) inserted into the exhaust pipe (1). A baffle (22) is fixedly connected to the front of the packing box (21). Fixed blocks (23) are fixedly connected to the left and right sides of the baffle (22). A sealing strip (24) is sleeved on the inner side of the baffle (22). The sealing strip (24) is in contact with the exhaust pipe (1) for sealing, and the bottom of the packing box (21) is provided with a leakage hole; The locking part (3) includes a fixing bracket (31) fixedly connected to the back of the exhaust pipe (1), a threaded rod (32) threadedly connected inside the fixing bracket (31), and a throttle (33) fixedly connected to the back of the threaded rod (32); and A tensioning assembly (34) is installed in front of the fixing frame (31) and is used to pull and lock the baffle (22); The fixing frame (31) is used to support the threaded rod (32) and the tensioning assembly (34). When the threaded rod (32) rotates, it will drive the tensioning assembly (34) to move forward or backward.

2. The anti-agglomeration mechanism for urea production tail gas according to claim 1, characterized in that, The end of the water inlet pipe (13) is equipped with several spray pipes (131). The spray pipes (131) are located inside the exhaust pipe (1). The spray pipes (131) are used to spray water to wash the particulate matter in the exhaust gas. After the exhaust gas is adsorbed by the packing part (2) and sprayed by the spray pipes (131), it will be discharged from the exhaust pipe (14).

3. The anti-agglomeration mechanism for urea production tail gas according to claim 2, characterized in that, The tensioning assembly (34) includes a movable plate (341) disposed on the front of the threaded rod (32), a buckle plate (342) disposed on the outer side of the movable plate (341), a buckle groove (343) being provided at the bottom of the buckle plate (342), a fixed shaft (344) being rotatably connected inside the buckle plate (342), the fixed shaft (344) being fixedly connected to the surface of the movable plate (341), and a limit ring (345) and a limit rod (346) being fixedly connected to the front of the movable plate (341). The buckle plate (342) is inserted into the fixing block (23) through the buckle groove (343), and the fixing shaft (344) is used to support the buckle plate (342) and make the buckle plate (342) flip so that it can be easily removed from the fixing block (23).

4. The anti-agglomeration mechanism for urea production tail gas according to claim 3, characterized in that, The threaded rod (32) is fixedly connected to a convex shaft (321) on the front. The convex shaft (321) rotates inside the limiting ring (345). The threaded rod (32) pulls the limiting ring (345) to move through the convex shaft (321), and at the same time drives the moving plate (341) to move together.

5. The anti-agglomeration mechanism for urea production tail gas according to claim 4, characterized in that, The limiting rod (346) slides through the fixing frame (31) and extends to the outside. The limiting rod (346) is used to support the moving plate (341) and limit the movement of the moving plate (341).

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