An eod macromer preparation device

Abstract

This utility model belongs to the field of chemical equipment technology and relates to an EOD macromonomer preparation device, comprising: a first pretreatment vessel, with a first feeding pipe and a catalyst pipe connected to its inlet end, and a first treatment vessel connected to its outlet end via a pipeline, the outlet end of the first treatment vessel being connected to a first outlet pipe; a second pretreatment vessel, with a second feeding pipe, a potassium hydroxide pipe, and a temporary feeding pipe connected to its inlet end, and a second treatment vessel connected to its outlet end via a pipeline, the outlet end of the second treatment vessel being connected to a second outlet pipe; and a post-treatment vessel, with a feeding pipe and a neutralizing agent pipe connected to its inlet end, the feeding pipe being connected to the first outlet pipe and the second outlet pipe, and a discharge pipe connected to its outlet end. It has the advantage of being able to meet the preparation needs of different macromonomer products with a small amount of equipment, thereby increasing profits.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, and in particular relates to an EOD macromonomer preparation device. Background Technology

[0002] Ethylene oxide derivatives mainly refer to nonionic surfactants, polyether macromonomers, and other fine chemical products synthesized from ethylene oxide as raw materials. They can be widely used in daily chemicals, textiles, metal processing, high-speed rail and highway engineering, and other fields.

[0003] Currently, with the continuous development of EOD products, especially EOD macromonomer products, the market is becoming increasingly mature and saturated, and profit margins are being continuously squeezed. Under this market predicament, how to improve EOD macromonomer preparation equipment to increase profits has become an urgent problem to be solved. Utility Model Content

[0004] This invention provides an EOD macromonomer preparation device that can meet the preparation needs of different macromonomer products with a small amount of equipment, thereby increasing profits.

[0005] The technical solution of this utility model includes: an EOD macromonomer preparation device, comprising: a first pretreatment vessel, the inlet end of which is connected to a first feeding pipe and a catalyst pipe, the outlet end of which is connected to a first treatment vessel via a pipeline, and the outlet end of which is connected to a first outlet pipe; a second pretreatment vessel, the inlet end of which is connected to a second feeding pipe, a potassium hydroxide pipe and a temporary feeding pipe, the outlet end of which is connected to a second treatment vessel via a pipeline, and the outlet end of which is connected to a second outlet pipe; and a post-treatment vessel, the inlet end of which is connected to a feed pipe and a neutralizing agent pipe, the feed pipe being connected to the first outlet pipe and the second outlet pipe, and the outlet end of which is connected to a discharge pipe.

[0006] Preferably, the first feeding pipe is connected to a plurality of first feeding branch pipes, the plurality of first feeding branch pipes are arranged in parallel, and nitrogen gas is introduced into one of the first feeding branch pipes.

[0007] Preferably, the second feeding pipe is connected to a plurality of second feeding branch pipes, the plurality of second feeding branch pipes are arranged in parallel, and nitrogen gas is introduced into one of the second feeding branch pipes.

[0008] Preferably, the feed pipe is connected to a nitrogen pipe, and the first discharge pipe and the second discharge pipe are equipped with automatic valves.

[0009] Preferably, a circulating water inlet pipe is connected to one side of the post-treatment vessel, and a circulating water outlet pipe is connected to the other side of the post-treatment vessel.

[0010] Preferably, the top of the post-treatment vessel is connected to a tail gas scrubbing pipe and a vacuum pipe, the unloading pipe is connected to the bottom of the post-treatment vessel, and the unloading pipe is equipped with an automatic valve.

[0011] Preferably, the top of the first pretreatment vessel is connected to a first exhaust gas washing pipe and a first vacuum pipe, and the bottom of the first pretreatment vessel is connected to the top of the first treatment vessel through a pipe.

[0012] Preferably, the top of the second pretreatment vessel is connected to a second exhaust gas washing pipe and a second vacuum pipe, and the bottom of the second pretreatment vessel is connected to the top of the second treatment vessel through a pipeline.

[0013] Preferably, the first pretreatment vessel, the first treatment vessel, the second pretreatment vessel, the second treatment vessel, and the posttreatment vessel are all equipped with a stirring mechanism.

[0014] The beneficial effects of this utility model are as follows: By designing two EOD large monomer production lines, a first large monomer production line is formed using a first pretreatment kettle and a first processing kettle, and a second large monomer production line is formed using a second pretreatment kettle and a second processing kettle. The two large monomer production lines share the same post-processing kettle, enabling the sharing of some equipment between the two large monomer production lines. Compared with using two independent large monomer production lines, this saves on equipment usage, thereby reducing production costs and increasing the profit margin of large monomer products. Furthermore, a temporary feeding pipe is designed at the inlet end of the second pretreatment kettle. Using this temporary feeding pipe, appropriate raw materials can be added to the second pretreatment kettle according to the type of large monomer product being produced, expanding the types of large monomer products that can be produced. When facing new market demands for large monomer products, there is no need to design and replace a new large monomer production line, improving the utilization rate of this EOD large monomer production line and thus increasing product profits. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0016] Figure 1 This is a schematic diagram of an embodiment.

[0017] in: 1. First pretreatment vessel; 11. First feeding pipe; 12. First feeding branch pipe; 13. Catalyst pipe; 14. First tail gas scrubbing pipe; 15. First vacuum pipe; 2. First treatment vessel; 21. First discharge pipe; 3. Second pretreatment vessel; 31. Second feeding pipe; 32. Second feeding branch pipe; 33. Potassium hydroxide pipe; 34. Temporary feeding pipe; 35. Second tail gas scrubbing pipe; 36. Second vacuum pipe; 4. Second treatment vessel; 41. Second discharge pipe; 5. Post-processing vessel; 51. Feeding pipe; 52. Nitrogen pipe; 53. Neutralizing agent pipe; 54. Circulating water inlet pipe; 55. Circulating water outlet pipe; 56. Tail gas scrubbing pipe; 57. Vacuum pipe; 58. Discharge pipe. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In this document, terms such as "above," "below," "left," "right," "inner," and "outer" are established based on the positional relationships shown in the accompanying drawings. Depending on the drawings, these positional relationships may change; therefore, they should not be construed as absolute limitations on the scope of protection. Furthermore, relational terms such as "first" and "second" are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components. In addition, in embodiments of this utility model, "above," "below," etc., include the stated number.

[0020] The EOD macromonomer preparation apparatus of this embodiment is mainly proposed in response to the reality that the market demand for existing EOD macromonomer products is becoming increasingly saturated and profit margins are being continuously squeezed, in order to increase the profit of the produced EOD macromonomer products and enhance market competitiveness.

[0021] Reference Figure 1 The EOD macromonomer preparation apparatus of this embodiment includes a first pretreatment vessel 1, a first processing vessel 2, a second pretreatment vessel 3, a second processing vessel 4, and a post-processing vessel 5. The first pretreatment vessel 1, the first processing vessel 2, and the post-processing vessel 5 form a first EOD macromonomer production line, while the second pretreatment vessel 3, the second processing vessel 4, and the post-processing vessel 5 form a second EOD macromonomer production line. This allows the two macromonomer production lines to share the post-processing vessel 5, saving on equipment usage for both lines, thereby reducing production costs and increasing the profit margin of the macromonomer product.

[0022] The feed end of the first pretreatment vessel 1 is connected to a first feeding pipe 11 and a catalyst pipe 13. Depending on the type of large monomer product to be produced, the corresponding raw materials are added to the first pretreatment vessel 1 through the first feeding pipe 11 and the catalyst pipe 13. After processing is completed in the first pretreatment vessel 1, the material flows from the discharge end of the first pretreatment vessel 1 into the first treatment vessel 2 through a pipeline. The discharge end of the first treatment vessel 2 is connected to a first discharge pipe 21; that is, after processing is completed in the first treatment vessel 2, the material is discharged from the first discharge pipe 21.

[0023] The feed end of the second pretreatment vessel 3 is connected to a second feeding pipe 31, a potassium hydroxide pipe 33, and a temporary feeding pipe 34. Depending on the type of large monomer product required for the second production line, the necessary raw materials are added to the second pretreatment vessel 3 through the second feeding pipe 31. Simultaneously, potassium hydroxide is added to the second pretreatment vessel 3 through the potassium hydroxide pipe 33. Furthermore, the temporary feeding pipe 34 allows for adjustments to the production of different types of large monomer products based on market demand changes. This enables the second pretreatment vessel 3 to produce different types of large monomer products according to market needs, expanding the range of large monomer products produced and enhancing the production line's product adaptability. Consequently, when changing the large monomer products produced, there is no need to design a new production line, improving the utilization rate of existing equipment, reducing production costs, and ultimately increasing the profit margin of large monomer products and enhancing market competitiveness.

[0024] The discharge end of the second pretreatment vessel 3 is connected to the second treatment vessel 4 via a pipeline. That is, after the processing is completed in the second pretreatment vessel 3, the intermediate product enters the second treatment vessel 4 through the pipeline. The discharge end of the second treatment vessel 4 is connected to the second discharge pipe 41. That is, after the processing is completed in the second treatment vessel 4, the product is discharged from the second discharge pipe 41 into the subsequent processing.

[0025] The feed end of the post-processing reactor 5 is connected to a feed pipe 51 and a neutralizing agent pipe 53. The feed pipe 51 is connected to the first discharge pipe 21 and the second discharge pipe 41. Thus, materials discharged from the first discharge pipe 21 and the second discharge pipe 41 can both enter the post-processing reactor 5 through the feed pipe 51, enabling the two large single-unit production lines to share the same post-processing reactor 5, thereby reducing production costs and increasing profits. Simultaneously, the required neutralizing agent is added to the post-processing reactor 5 through the neutralizing agent pipe 53 during post-processing. The discharge end of the post-processing reactor 5 is connected to a discharge pipe 58. After processing is completed in the post-processing reactor 5, the material is discharged to a designated site through the discharge pipe 58.

[0026] Reference Figure 1The first feeding pipe 11 is connected to multiple first feeding branch pipes 12, which are arranged in parallel. Nitrogen gas is introduced into one of the first feeding branch pipes 12. Similarly, the second feeding pipe 31 is connected to multiple second feeding branch pipes 32, which are arranged in parallel. Nitrogen gas is introduced into one of the second feeding branch pipes 32. Thus, by designing multiple first feeding branch pipes 12 and second feeding branch pipes 32, it is possible to supply each raw material using independent feeding branch pipes according to the production needs of the large monomer product. Furthermore, some feeding branch pipes can be kept as spares to facilitate adjustments in the supply of raw materials based on the type of large monomer product being produced. This allows the preparation apparatus of this embodiment to meet the production needs of various different large monomer products. Furthermore, nitrogen gas is introduced into one of the first feeding branch pipes 12 and the second feeding branch pipe 32. At the end of production, nitrogen gas can be used to purge the raw materials remaining in the pipeline, so as to avoid corrosion of the pipeline by the raw materials remaining in the pipeline, and to avoid pollution caused by the replacement of raw materials in the pipeline, which would affect the quality of the large-scale single product produced.

[0027] The feed pipe 51 is connected to a nitrogen pipe 52. At the end of production, nitrogen is introduced through the nitrogen pipe 52 to purge any remaining material in the pipe, preventing material residue from contaminating subsequent production and thus improving the quality of the large-scale monomer products produced by this device. Automatic valves are installed on the first discharge pipe 21 and the second discharge pipe 41 to facilitate switching between the two large-scale monomer production lines.

[0028] One side of the post-treatment vessel 5 is connected to a circulating water inlet pipe 54, and the other side is connected to a circulating water outlet pipe 55. Circulating water enters through the circulating water inlet pipe 54, exchanges heat with the post-treatment vessel 5 to cool it down, and then exits from the circulating water outlet pipe 55, so as to maintain the post-treatment vessel 5 within the required processing temperature range and improve the quality of the large monomers produced.

[0029] The top of the post-treatment vessel 5 is connected to a tail gas scrubbing pipe 56 and a vacuum pipe 57, and the bottom of the post-treatment vessel 5 is connected to a discharge pipe 58, which is equipped with an automatic valve. Similarly, the top of the first pre-treatment vessel 1 is connected to a first tail gas scrubbing pipe 14 and a first vacuum pipe 15, and the bottom of the first pre-treatment vessel 1 is connected to the top of the first treatment vessel 2 via a pipe. The top of the second pre-treatment vessel 3 is connected to a second tail gas scrubbing pipe 35 and a second vacuum pipe 36, and the bottom of the second pre-treatment vessel 3 is connected to the top of the second treatment vessel 4 via a pipe. In this way, the tail gas from the first pre-treatment vessel 1, the second pre-treatment vessel 3, and the post-treatment vessel 5 can be treated by tail gas scrubbing before being discharged into the atmosphere, avoiding environmental pollution.

[0030] Reference Figure 1Each of the first pretreatment vessel 1, first treatment vessel 2, second pretreatment vessel 3, second treatment vessel 4, and posttreatment vessel 5 is equipped with a stirring mechanism to agitate the materials inside the vessel, thereby improving the processing effect. Furthermore, motors are designed on the top exterior of each of the first pretreatment vessel 1, first treatment vessel 2, second pretreatment vessel 3, second treatment vessel 4, and posttreatment vessel 5 to drive the stirring mechanism within them.

[0031] The EOD macromonomer preparation apparatus of this embodiment utilizes a first pretreatment vessel 1, a first treatment vessel 2, and a post-treatment vessel 5 to form a large macromonomer product production line, and utilizes a second pretreatment vessel 3, a second treatment vessel 4, and a post-treatment vessel 5 to form another large macromonomer product production line. The two macromonomer production lines share the post-treatment vessel 5, which can save on equipment used in production, reduce production costs, and increase the profit of macromonomer products. In addition, a temporary feeding pipe 34 is designed in the second pretreatment vessel 3, which can flexibly adjust the types of macromonomer products produced according to market demand. It can meet the preparation needs of different macromonomer products with a small amount of equipment, which can increase the profit of macromonomer products and improve market competitiveness.

[0032] Where the embodiments do not contradict each other, at least some of the technical solutions in each embodiment can be recombine to form the essential technical solution of this utility model. Of course, the embodiments can also reference or include each other. Furthermore, it should be noted that adaptive adjustments and modifications made by those skilled in the art when recombinating the technical means described in the embodiments will also fall within the protection scope of this utility model.

[0033] The technical principles of this utility model have been described above in conjunction with specific embodiments. However, it should be noted that these descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, other specific embodiments or equivalent substitutions of this utility model that can be conceived by those skilled in the art without creative effort will all fall within the scope of protection of this utility model.

Claims

1. An apparatus for the preparation of EOD macromers, characterized in that, include: The first pretreatment vessel (1) has a first feeding pipe (11) and a catalyst pipe (13) connected to its feed end. The first pretreatment vessel (1) has a first treatment vessel (2) connected to its discharge end via a pipeline. The first treatment vessel (2) has a first discharge pipe (21) connected to its discharge end. The second pretreatment vessel (3) has a second feeding pipe (31), a potassium hydroxide pipe (33) and a temporary feeding pipe (34) connected to its feed end. The second pretreatment vessel (3) has a second treatment vessel (4) connected to its discharge end via a pipeline. The second treatment vessel (4) has a second discharge pipe (41) connected to its discharge end. The post-processing vessel (5) has a feed pipe (51) and a neutralizing agent pipe (53) connected to its feed end. The feed pipe (51) is connected to the first discharge pipe (21) and the second discharge pipe (41). The discharge end of the post-processing vessel (5) is connected to a discharge pipe (58).

2. The EOD macromer preparation apparatus according to claim 1, wherein: The first feeding pipe (11) is connected to a plurality of first feeding branch pipes (12), and the plurality of first feeding branch pipes (12) are arranged in parallel, and nitrogen gas is introduced into one of the first feeding branch pipes (12).

3. The EOD macromer preparation apparatus of claim 2, wherein: The second feeding pipe (31) is connected to a plurality of second feeding branch pipes (32), which are arranged in parallel, and nitrogen gas is introduced into one of the second feeding branch pipes (32).

4. The EOD macromer preparation apparatus according to claim 1, wherein: The feed pipe (51) is connected to a nitrogen pipe (52), and the first discharge pipe (21) and the second discharge pipe (41) are equipped with automatic valves.

5. The EOD macromer preparation apparatus according to claim 4, wherein: One side of the post-treatment vessel (5) is connected to a circulating water inlet pipe (54), and the other side of the post-treatment vessel (5) is connected to a circulating water outlet pipe (55).

6. The EOD macromer preparation apparatus of claim 5, wherein: The top of the post-treatment vessel (5) is connected to a tail gas scrubbing pipe (56) and a vacuum pipe (57), and the unloading pipe (58) is connected to the bottom of the post-treatment vessel (5). The unloading pipe (58) is equipped with an automatic valve.

7. The EOD macromer preparation apparatus of claim 1, wherein: The top of the first pretreatment vessel (1) is connected to a first exhaust gas washing pipe (14) and a first vacuum pipe (15), and the bottom of the first pretreatment vessel (1) is connected to the top of the first treatment vessel (2) through a pipe.

8. The EOD macromer preparation apparatus of claim 1, wherein: The top of the second pretreatment vessel (3) is connected to a second exhaust gas washing pipe (35) and a second vacuum pipe (36), and the bottom of the second pretreatment vessel (3) is connected to the top of the second treatment vessel (4) through a pipeline.

9. The EOD macromer preparation apparatus of claim 1, wherein: The first pretreatment vessel (1), the first treatment vessel (2), the second pretreatment vessel (3), the second treatment vessel (4), and the posttreatment vessel (5) are all equipped with a stirring mechanism.

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