A pre-polycondensation hot well

Abstract

The utility model relates to a kind of precondensation thermal well including well body, the baffle of first chamber and second chamber being arranged in well body interior and separating the inner cavity of well body. The top end of baffle and the top end of well body form plane for liquid overflow, so that liquid can only be overflowed by the filter basket of top to realize exchange, so as to separate the process of sedimentation and the process of fine filtration, first chamber is used for the preliminary sedimentation of atmospheric leg incoming material, so that heavy slag can be gathered in bottom, and the liquid separated by preliminary separation is overflowed to the filter basket of second chamber to carry out final filtration, which avoids the direct impact and winding of solid slag on filter basket, significantly reduces the plugging frequency in well body, prolongs the continuous operation cycle of device, reduces the cleaning frequency of system shutdown, improves the stability, efficiency and product quality of production process.

Description

Technical Field

[0001] This utility model relates to the field of polycondensation technology, and in particular to a pre-polycondensation hot well. Background Technology

[0002] Current prepolymerization heat wells are typically single containers. The incoming material from the air feed directly enters and impacts the filter device in the heat well, causing solid residue and liquid to mix and tumble in a single space. This prevents effective sedimentation and separation, and the material is easily and quickly clogged. Frequent clogging affects product quality and requires frequent shutdowns of the production equipment for cleaning and maintenance, severely restricting the efficiency and stability of continuous production.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a pre-condensation thermal well to solve the problem that when atmospheric feed material directly enters and impacts the filtration device in the thermal well, solid slag and liquid mix and tumble in a single space, failing to achieve effective sedimentation and separation.

[0005] The technical solution adopted in this utility model is as follows: A prepolymerization thermal well, comprising a well body, characterized in that: The well body is provided with a baffle that divides the inner cavity of the well body into a first chamber and a second chamber; the top of the baffle and the top of the well body form a plane for liquid overflow; the top of the first chamber is provided with a large air leg BDO inlet pipe, and the bottom of the first chamber is provided with a slag removal pipe. The bottom of the second chamber is provided with a circulating BDO outlet pipe, and the top of the second chamber is provided with a filter basket; the top of the first chamber and the top of the second chamber are connected through the filter basket, and the liquid level in the first chamber can flow into the second chamber from the filter basket after rising to the top of the overflow baffle.

[0006] A further technical solution is that the top of the well body is provided with a slag removal manhole and a filter basket manhole, and the position of the filter basket manhole corresponds to the position of the filter basket.

[0007] A further technical solution is that the filter basket is detachably supported at the top of the second chamber.

[0008] A further technical solution is that the slag removal pipe is connected to a slag removal box, the slag removal box is connected to a slag remover, a first condensate outlet pipe is provided on one side of the top of the slag removal box, and a ball valve is provided at the first condensate outlet pipe; a drain pipe is provided on one side of the bottom of the slag removal box.

[0009] A further technical solution is that a knife gate valve is provided at the connection between the slag removal box and the slag remover.

[0010] A further technical solution is that an outer coil is provided on the bottom outer wall of the well body, and the outer coil is connected to a steam inlet pipe and a second condensate outlet pipe.

[0011] A further technical solution is that a vent pipe is provided on one side of the top of the well body.

[0012] A further technical solution is that a low-discharge BDO inlet pipe is provided at the top of the well body, and a concentrated BDO inlet pipe is provided on the side of the first chamber.

[0013] The beneficial effects of this utility model embodiment are as follows: (i) A pre-condensation thermal well includes a well body, inside which a baffle is provided to separate the inner cavity of the well body into a first chamber and a second chamber. The top of the baffle and the top of the well body form a plane for liquid overflow, so that the liquid can only overflow and exchange through the filter basket at the top, thereby separating the settling process and the fine filtration process. The first chamber is used for the initial settling of the incoming material from the large air leg, so that heavy slag can be accumulated at the bottom, while the liquid after initial separation overflows to the filter basket in the second chamber for final filtration. This structure avoids the direct impact and entanglement of solid slag on the filter basket, significantly reduces the frequency of clogging in the well body, extends the continuous operation cycle of the device, reduces the number of system shutdowns for cleaning, and improves the stability, efficiency and product quality of the production process.

[0014] (ii) Furthermore, the top of the well body is equipped with a slag removal manhole and a filter basket manhole, with the filter basket manhole positioned corresponding to the position of the filter basket. These manholes provide dedicated online maintenance channels for the equipment. The filter basket manhole, with its vertically aligned position with the filter basket, allows operators to directly access, lift, replace, or clean the filter basket directly below without stopping the machine. The slag removal manhole is used to clean residual slag from the top of the baffle, enabling rapid and targeted maintenance of critical components and improving the ease of operation and production efficiency of the equipment.

[0015] (III) Furthermore, the slag removal pipe is connected to a slag removal box, which is connected to the slag remover. A first condensate outlet pipe is installed on one side of the top of the slag removal box, and a ball valve is installed at the first condensate outlet pipe. A drain pipe is installed on one side of the bottom of the slag removal box. The slag removal pipe, slag removal box, and slag remover constitute a slag removal system. The slag removal box acts as a buffer and temporary storage container, receiving heavy slag from the first chamber and using the slag remover to provide power to finally discharge the slag from the system. The condensate outlet pipe and ball valve at the top of the slag removal box are used to discharge the steam condensate accumulated in the box, preventing the condensate from affecting the operation of the slag remover. The drain pipe is used to completely empty the residual liquid and slurry in the box during maintenance or long-term shutdown, ensuring operational safety and facilitating maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of a prepolymerization thermal well according to this utility model.

[0017] Figure 2 These are front and back views of the top and bottom of a prepolymerized thermal well according to this utility model.

[0018] In the picture: 100. Well body; 101. Slag removal manhole; 102. Filter basket manhole; 103. Vent pipe; 104. Low-pressure BDO inlet pipe; 110. First chamber; 111. Large-pressure BDO inlet pipe; 112. Slag removal pipe; 113. Concentrated BDO inlet pipe; 120. Second chamber; 121. Circulating BDO outlet pipe; 200. Baffle; 300. Filter basket; 400. Slag removal box; 401. First condensate outlet pipe; 402. Drain pipe; 500. Knife gate valve; 600. External coil; 601. Steam inlet pipe; 602. Second condensate outlet pipe. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] First embodiment: A pre-condensation thermal well includes a well body 100, inside which a baffle 200 is provided to divide the inner cavity of the well body 100 into a first chamber 110 and a second chamber 120. Exemplarily, a vent pipe 103 is provided on one side of the top of the well body 100. A plane for liquid overflow is formed between the top of the baffle 200 and the top of the well body 100. A large-volume BDO inlet pipe 111 is provided at the top of the first chamber 110, and a slag removal pipe 112 is provided at the bottom of the first chamber 110. A low-volume BDO inlet pipe 104 is also provided at the top of the well body 100, and a concentrated BDO inlet pipe 113 is also provided on the side of the first chamber 110. A circulating BDO outlet pipe 121 is provided at the bottom of the second chamber 120, and a filter basket 300 is provided at the top of the second chamber 120. Exemplarily, the filter basket 300 is detachably supported at the top of the second chamber 120. The top of the first chamber 110 is connected to the top of the second chamber 120 through a filter basket 300. After the liquid level in the first chamber 110 rises to the top of the overflow baffle 200, it can flow into the second chamber 120 through the filter basket 300.

[0021] Furthermore, the top of the well body 100 is equipped with a slag removal manhole 101 and a filter basket 300 manhole 102, with the filter basket manhole 102 positioned corresponding to the position of the filter basket 300. The slag removal manhole 101 and the filter basket manhole 102 provide dedicated online maintenance channels for the equipment. The filter basket manhole 102, with its vertically corresponding position to the filter basket 300, allows operators to directly hoist, replace, or clean the filter basket 300 directly below without stopping the machine. The slag removal manhole 101 is used to clean residual slag from the top of the baffle 200, enabling rapid and targeted maintenance of key components and improving the ease of equipment operation and production efficiency.

[0022] Furthermore, the slag removal pipe 112 is connected to a slag removal box 400, which is connected to a slag remover. A first condensate outlet pipe 401 is provided on one side of the top of the slag removal box 400, and a ball valve is installed at the first condensate outlet pipe 401. A drain pipe 402 is provided on one side of the bottom of the slag removal box 400. The slag removal pipe 112, the slag removal box 400, and the slag remover constitute a slag removal system. The slag removal box 400 acts as a buffer and temporary storage container, receiving heavy slag from the first chamber 110, and using the slag remover to power the final discharge of the slag from the system. The condensate outlet pipe and ball valve at the top of the slag removal box 400 are used to discharge the steam condensate accumulated in the box, preventing the condensate from affecting the operation of the slag remover. The drain pipe 402 is used to completely empty the residual liquid and slurry in the box during maintenance or long-term shutdown, ensuring operational safety and facilitating maintenance.

[0023] Furthermore, a knife gate valve 500 is installed at the connection between the slag removal box 400 and the slag remover. The knife gate valve 500 is suitable for slurry media containing solid particles. By closing this valve, the slag remover and the slag removal box 400 are completely isolated. Therefore, when the slag remover needs maintenance, repair, or replacement, it is not necessary to empty the entire slag removal box 400 or even the hot well system, ensuring the safety of operators, simplifying maintenance procedures, and enabling rapid maintenance of key components.

[0024] Furthermore, an outer coil 600 is installed on the outer wall of the bottom end of the well body 100. The outer coil 600 is connected to a steam inlet pipe 601 and a second condensate outlet pipe 602. The heating steam introduced into the outer coil 600 uniformly heats the bottom of the well body 100, maintaining the operating temperature required for the pre-polymerization process. This prevents the material from increasing in viscosity or solidifying due to temperature reduction, thus ensuring the fluidity of the material, especially the bottom slurry, allowing it to be smoothly discharged through the slag removal pipe 112. It also maintains the entire interior of the hot well under suitable reaction or storage temperature conditions, ensuring the stability and efficiency of the process.

[0025] In operation, this embodiment is as follows: The material first enters the first chamber 110 through the BDO inlet pipe 111, where gas-liquid separation and heavy slag settling occur. The liquid level gradually rises until it overflows the top plane of the baffle 200, and then flows into the second chamber 120 after filtration through the corresponding filter basket 300. Finally, it is discharged from the system through the circulating BDO outlet pipe 121. The slag settled at the bottom of the first chamber 110 enters the connected slag removal box 400 through the slag removal pipe 112, and can be finally discharged by the slag remover under the control of the knife gate valve 500. Steam is introduced into the external coil 600 to heat or insulate the well body 100, and its condensate is discharged through the second condensate outlet pipe 602. When maintenance is required, the slag can be cleaned through the slag removal manhole 101, or the detachable filter basket 300 can be replaced or cleaned by opening the filter basket 300 manhole 102.

[0026] In this embodiment, the direct impact and entanglement of solid slag on the filter basket 300 is avoided, which significantly reduces the frequency of clogging in the well body 100, extends the continuous operation cycle of the device, reduces the number of system shutdowns for cleaning, and improves the stability, efficiency and product quality of the production process.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A prepolymerization thermal well, comprising a well body, characterized in that: The well body is provided with a baffle that divides the inner cavity of the well body into a first chamber and a second chamber; the top of the baffle and the top of the well body form a plane for liquid overflow; the top of the first chamber is provided with a large air leg BDO inlet pipe, and the bottom of the first chamber is provided with a slag removal pipe. The bottom of the second chamber is provided with a circulating BDO outlet pipe, and the top of the second chamber is provided with a filter basket; the top of the first chamber and the top of the second chamber are connected through the filter basket, and the liquid level in the first chamber can flow into the second chamber from the filter basket after rising to the top of the overflow baffle.

2. The prepolymerization thermal well according to claim 1, characterized in that: The top of the well body is provided with a slag removal manhole and a filter basket manhole, and the position of the filter basket manhole corresponds to the position of the filter basket.

3. The prepolymerization thermal well according to claim 1, characterized in that: The filter basket is detachably supported at the top of the second chamber.

4. The prepolymerization thermal well according to claim 1, characterized in that: The slag removal pipe is connected to a slag removal box, which is connected to a slag remover. A first condensate outlet pipe is provided on one side of the top of the slag removal box, and a ball valve is provided at the first condensate outlet pipe. A drain pipe is provided on one side of the bottom of the slag removal box.

5. The prepolymerization thermal well according to claim 4, characterized in that: A knife gate valve is installed at the connection between the slag removal box and the slag remover.

6. The prepolymerization thermal well according to claim 1, characterized in that: The bottom outer wall of the well body is provided with an outer coil, which is connected to a steam inlet pipe and a second condensate outlet pipe.

7. The prepolymerization thermal well according to claim 1, characterized in that: A vent pipe is provided on one side of the top of the well body.

8. The prepolymerization thermal well according to claim 1, characterized in that: The top of the well body is also provided with a low-discharge BDO inlet pipe, and the side of the first chamber is also provided with a concentrated BDO inlet pipe.

Images