Zinc pyrrolidone carboxylate production device

Abstract

The utility model discloses a zinc pyrrolidone carboxylate production device which comprises a dehydration reaction kettle, a dilution tank is connected to the outside of the dehydration reaction kettle, a decolorizing kettle is connected to the outside of the dilution tank through a diluent delivery pump, and a decolorizing liquid delivery pump, a decolorizing filter, a precision filter and a storage kettle are sequentially connected to the outside of the decolorizing kettle. The exteriors of the diluting tank and the decolorizing kettle are connected with a pure water head tank; an inner cavity is formed in the inner side of the storage kettle, a first heating cavity is formed in the middle of the inner cavity, a discharging opening is formed in one side of the bottom of the inner cavity, a second heating cavity is formed in the periphery of the side wall of the storage kettle, and the first heating cavity is communicated with the second heating cavity. According to the utility model, treatment and temporary storage of glutamic acid can be realized, and the glutamic acid can be conveniently canned and transported by manufacturers.

Description

Technical Field

[0001] The utility model relates to a chemical substance production device, in particular to a zinc pyrrolidone carboxylate production device. Background Art

[0002] At present, the preparation process of zinc pyrrolidone carboxylate is to first dehydrate and decolorize glutamic acid, then condense the glutamic acid obtained by the treatment with zinc oxide to obtain zinc glutamate, and then dissolve, filter and crystallize the zinc glutamate to obtain the desired zinc pyrrolidone carboxylate.

[0003] However, since each of the above steps needs to be processed by a separate processing equipment, and the processing efficiency of different equipment, as well as the amount and transportation method of each raw material in the processing process are different, how to combine and optimize the equipment required for the above processes to improve the processing efficiency of zinc pyrrolidone carboxylate and facilitate the transportation of semi-finished products by manufacturers has become a problem that manufacturers need to solve at present. Utility Model Content

[0004] The purpose of the utility model is to provide a zinc pyrrolidone carboxylate production device, which can realize the processing and temporary storage of glutamic acid and facilitate the canning and transportation of glutamic acid by manufacturers.

[0005] The technical solution of the utility model is as follows: a zinc pyrrolidonecarboxylate production device comprises a dehydration reaction kettle, the outside of the dehydration reaction kettle is connected with a dilution tank, the outside of the dilution tank is connected with a decolorization kettle via a dilution liquid delivery pump, the outside of the decolorization kettle is sequentially connected with a decolorization liquid delivery pump, a decolorization filter, a precision filter and a storage kettle, the outsides of the dilution tank and the decolorization kettle are both connected with a pure water high-level tank; an inner cavity is formed on the inner side of the storage kettle, a first heating cavity is arranged in the middle of the inner cavity, a discharge port is arranged on one side of the bottom of the inner cavity, a second heating cavity is arranged around the side wall of the storage kettle, and the first heating cavity and the second heating cavity are connected to each other.

[0006] In the aforementioned zinc pyrrolidonecarboxylate production device, a heating tube is connected to the middle of the inner cavity, the inner side of the heating tube forms a first heating cavity, the lower end of the first heating cavity extends to the outside of the storage kettle and is interconnected with the first heating cavity, and the upper end of the first heating cavity extends to the outside of the storage kettle and forms an oil inlet.

[0007] In the aforementioned zinc pyrrolidonecarboxylate production device, an outer cylinder is connected to the outer side of the bottom of the storage kettle, a second heating chamber is formed between the outer cylinder and the side wall of the storage kettle, and an oil outlet is formed on one side of the top of the second heating chamber.

[0008] In the aforementioned zinc pyrrolidonecarboxylate production device, a stirring mechanism is provided in the inner cavity.

[0009] In the aforementioned zinc pyrrolidonecarboxylate production device, the stirring mechanism includes a stirring tube sleeved on the outside of the heating tube, a plurality of stirring blades are distributed around the stirring tube, and the upper end of the stirring tube extends to the outside of the storage kettle and is transmission-connected to a driving motor.

[0010] In the aforementioned zinc pyrrolidonecarboxylate production device, a cover plate is connected to the top of the storage kettle, the heating tube and the stirring tube both pass through the cover plate and extend to the outside of the storage kettle, and the stirring tube and the cover plate are rotatably connected.

[0011] In the aforementioned zinc pyrrolidonecarboxylate production device, the outside of the dehydration reaction kettle is sequentially connected with a dewatering condenser, a dewatering cooler and a dewatering receiving tank.

[0012] Compared with the prior art, the utility model has the following characteristics:

[0013] (1) By limiting the connection structure of each processing equipment, the continuous dehydration, dissolution, decolorization and filtration process of glutamic acid can be realized, thereby obtaining a liquid glutamic acid semi-finished product; by setting up a storage kettle, the processed liquid glutamic acid can be temporarily stored, thereby facilitating the subsequent canning and transportation work of the operators;

[0014] (2) On this basis, by setting and structurally defining the first heating chamber and the second heating chamber in the storage kettle, the heating oil can control the temperature of the liquid glutamic acid from the middle and surrounding of the inner cavity respectively after it is introduced, thereby ensuring the storage stability of the liquid glutamic acid and preventing it from being precipitated due to the influence of external temperature;

[0015] (3) Through the coordination of the stirring tube connection structure of the heating tube, the utility model can also integrate the stirring tube on the basis of the heating tube, so that the stirring tube can be used to evenly stir the liquid glutamate near the first heating chamber and the second heating chamber and the liquid glutamate in other areas, thereby improving the temperature control effect of the utility model on the liquid glutamate;

[0016] Therefore, the utility model can realize the processing and temporary storage of glutamic acid, and is convenient for manufacturers to can and transport glutamic acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the storage kettle in Example 1;

[0019] Figure 3 It is a schematic diagram of the structure of the storage kettle in Example 2.

[0020] The markings in the accompanying drawings are: 1-dehydration reaction kettle, 2-dilution tank, 3-dilution liquid delivery pump, 4-decolorization kettle, 5-decolorization liquid delivery pump, 6-decolorization filter, 7-precision filter, 8-storage kettle, 9-pure water high-level tank, 10-inner cavity, 11-first heating chamber, 12-discharge port, 13-second heating chamber, 14-heating tube, 15-outer cylinder, 16-stirring tube, 17-cover plate, 18-dewatering condenser, 19-dewatering cooler, 20-dewatering receiving tank. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0022] Example 1. A zinc pyrrolidone carboxylate production device, comprising: Figure 1 and 2 As shown, it includes a dehydration reactor 1, the outside of the dehydration reactor 1 is connected to a dilution tank 2, the outside of the dilution tank 2 is connected to a decolorization reactor 4 via a dilution liquid delivery pump 3, the outside of the decolorization reactor 4 is sequentially connected to a decolorization liquid delivery pump 5, a decolorization filter 6, a precision filter 7 and a storage reactor 8, one side of the precision filter 7 is connected to the decolorization reactor 4 via a reflux pipe, and the outsides of the dilution tank 2 and the decolorization reactor 4 are both connected to a pure water high-level tank 9; an inner cavity 10 is formed on the inner side of the storage reactor 8, a first heating cavity 11 is provided in the middle of the inner cavity 10, a discharge port 12 is provided on one side of the bottom of the inner cavity 10, and a mutually staggered arrangement is formed between the discharge port 12 and the first heating cavity 11, a second heating cavity 13 is provided around the side wall of the storage reactor 8, and the first heating cavity 11 and the second heating cavity 13 are connected to each other.

[0023] A heating tube 14 is connected to the middle of the inner cavity 10, and the inner side of the heating tube 14 forms a first heating cavity 11. The lower end of the first heating cavity 11 extends to the outside of the storage kettle 8 and is interconnected with the first heating cavity 11. The upper end of the first heating cavity 11 extends to the outside of the storage kettle 8 and forms an oil inlet.

[0024] The outer side of the bottom of the storage kettle 8 is connected to an outer cylinder 15 , a second heating chamber 13 is formed between the outer cylinder 15 and the side wall of the storage kettle 8 , and an oil outlet is formed on one side of the top of the second heating chamber 13 .

[0025] The outside of the oil inlet and the oil outlet are respectively connected to an oil inlet pipe and an oil outlet pipe. After entering through the oil inlet pipe, the heat transfer oil passes through the first heating chamber 11 and the second heating chamber 13 in sequence and heats the liquid in the inner cavity 10. After heating, it is discharged through the oil outlet pipe and reheated, so that the liquid in the heating chamber is maintained at a specified temperature.

[0026] A cover plate 17 is connected to the top of the storage kettle 8 , and the heating pipe 14 passes through the cover plate 17 and extends to the outside of the storage kettle 8 .

[0027] The outside of the dehydration reactor 1 is connected in sequence with a dewatering condenser 18, a dewatering cooler 19 and a dewatering receiving tank 20.

[0028] Working principle of the utility model: when the utility model is used, the glutamic acid liquid is first put into the dehydration reactor 1, and the dehydration reactor 1 is used to sterilize and dehydrate the glutamic acid liquid. The evaporated water vapor is treated by the dehydration condenser 18 and the dehydration cooler 19 and then enters the dehydration receiving tank 20 for reuse. After the glutamic acid is treated, it enters the dilution tank 2 and is diluted with pure water to obtain a glutamic acid dilution liquid. After the glutamic acid dilution liquid is generated, it is transported to the decolorization reactor 4 by the dilution pump 3, and then activated carbon is added to decolorize the glutamic acid dilution liquid. After the decolorization is completed, the glutamic acid dilution liquid is transported to the decolorization filter 6 and the precision filter 7 in sequence by the decolorization filter 6 and the precision filter 7, so that the impurities and activated carbon in the glutamic acid dilution liquid are filtered and separated by the decolorization filter 6 and the precision filter 7, and the glutamic acid clear liquid is obtained and sent to the storage reactor 8 for temporary storage, waiting for the operator to regularly can the glutamic acid in the storage reactor 8 and transport it to the subsequent station for treatment.

[0029] When the glutamic acid in the storage kettle 8 is stored, the first heating chamber 11 and the second heating chamber 13 cooperate to control the temperature of the glutamic acid in the inner cavity 10 from the middle and the surroundings after the heat transfer oil is introduced, thereby preventing the glutamic acid from being affected by the external environment and causing stability problems.

[0030] Example 2. A zinc pyrrolidone carboxylate production device, comprising: Figure 1 and 3 As shown, it includes a dehydration reactor 1, the outside of the dehydration reactor 1 is connected to a dilution tank 2, the outside of the dilution tank 2 is connected to a decolorization reactor 4 via a dilution liquid delivery pump 3, the outside of the decolorization reactor 4 is sequentially connected to a decolorization liquid delivery pump 5, a decolorization filter 6, a precision filter 7 and a storage reactor 8, one side of the precision filter 7 is connected to the decolorization reactor 4 via a reflux pipe, and the outsides of the dilution tank 2 and the decolorization reactor 4 are both connected to a pure water high-level tank 9; an inner cavity 10 is formed on the inner side of the storage reactor 8, a first heating cavity 11 is provided in the middle of the inner cavity 10, a discharge port 12 is provided on one side of the bottom of the inner cavity 10, and a mutually staggered arrangement is formed between the discharge port 12 and the first heating cavity 11, a second heating cavity 13 is provided around the side wall of the storage reactor 8, and the first heating cavity 11 and the second heating cavity 13 are connected to each other.

[0031] A heating tube 14 is connected to the middle of the inner cavity 10, and the inner side of the heating tube 14 forms a first heating cavity 11. The lower end of the first heating cavity 11 extends to the outside of the storage kettle 8 and is interconnected with the first heating cavity 11. The upper end of the first heating cavity 11 extends to the outside of the storage kettle 8 and forms an oil inlet.

[0032] The outer side of the bottom of the storage kettle 8 is connected to an outer cylinder 15 , a second heating chamber 13 is formed between the outer cylinder 15 and the side wall of the storage kettle 8 , and an oil outlet is formed on one side of the top of the second heating chamber 13 .

[0033] The outside of the oil inlet and the oil outlet are respectively connected to an oil inlet pipe and an oil outlet pipe. After entering through the oil inlet pipe, the heat transfer oil passes through the first heating chamber 11 and the second heating chamber 13 in sequence and heats the liquid in the inner cavity 10. After heating, it is discharged through the oil outlet pipe and reheated, so that the liquid in the heating chamber is maintained at a specified temperature.

[0034] A stirring mechanism is disposed in the inner cavity 10 .

[0035] The stirring mechanism includes a stirring tube 16 sleeved on the outside of the heating tube 14. The stirring tube 16 and the heating tube 14 are coaxially arranged with a gap therebetween. A plurality of stirring blades are distributed around the stirring tube 16. The upper end of the stirring tube 16 extends to the outside of the storage kettle 8 and is transmission-connected to a driving motor.

[0036] A cover plate 17 is connected to the top of the storage kettle 8, and the heating tube 14 and the stirring tube 16 extend through the cover plate 17 to the outside of the storage kettle 8. The outer wall of the stirring tube 16 is rotatably connected to the cover plate 17 via a seat bearing. A bracket for supporting the stirring tube 16 is provided in the middle of the heating tube 14, and the lower end of the stirring tube 16 is buckled and connected to the bracket and can rotate along the bracket. A sealing rubber pad is provided at the joint between the stirring tube 16 and the bracket.

[0037] The outside of the dehydration reactor 1 is connected in sequence with a dewatering condenser 18, a dewatering cooler 19 and a dewatering receiving tank 20.

[0038] Compared with Example 1, this embodiment uses a stirring mechanism integrated on the storage kettle 8 to continuously stir the glutamate in the inner cavity 10, so that the glutamate near the first heating chamber 11 and the second heating chamber 13 can exchange heat with the glutamate in other areas, thereby improving the temperature uniformity of the glutamate in the inner cavity 10.

Claims

1. A zinc pyrrolidone carboxylate production device, characterized in that: The invention comprises a dehydration reaction kettle (1), wherein the outside of the dehydration reaction kettle (1) is connected to a dilution tank (2), the outside of the dilution tank (2) is connected to a decolorization kettle (4) via a dilution liquid delivery pump (3), the outside of the decolorization kettle (4) is sequentially connected to a decolorization liquid delivery pump (5), a decolorization filter (6), a precision filter (7) and a storage kettle (8), and the outsides of the dilution tank (2) and the decolorization kettle (4) are both connected to a pure water high-level tank (9); an inner cavity (10) is formed on the inner side of the storage kettle (8), a first heating cavity (11) is provided in the middle of the inner cavity (10), a discharge port (12) is provided on one side of the bottom of the inner cavity (10), a second heating cavity (13) is provided around the side wall of the storage kettle (8), and the first heating cavity (11) and the second heating cavity (13) are connected to each other.

2. A zinc pyrrolidonecarboxylate production device according to claim 1, characterized in that: A heating tube (14) is connected to the middle of the inner cavity (10), and a first heating cavity (11) is formed inside the heating tube (14). The lower end of the first heating cavity (11) extends to the outside of the storage kettle (8) and is in communication with the first heating cavity (11), and the upper end of the first heating cavity (11) extends to the outside of the storage kettle (8) and forms an oil inlet.

3. A zinc pyrrolidonecarboxylate production device according to claim 2, characterized in that: The outer side of the bottom of the storage kettle (8) is connected to an outer cylinder (15), a second heating chamber (13) is formed between the outer cylinder (15) and the side wall of the storage kettle (8), and an oil outlet is formed on one side of the top of the second heating chamber (13).

4. A zinc pyrrolidonecarboxylate production device according to claim 2, characterized in that: A stirring mechanism is provided in the inner cavity (10).

5. A zinc pyrrolidonecarboxylate production device according to claim 4, characterized in that: The stirring mechanism comprises a stirring tube (16) sleeved on the outside of the heating tube (14), a plurality of stirring blades are distributed around the stirring tube (16), and the upper end of the stirring tube (16) extends to the outside of the storage kettle (8) and is transmission-connected to a driving motor.

6. The zinc pyrrolidonecarboxylate production device according to claim 5, characterized in that: The top of the storage kettle (8) is connected to a cover plate (17), the heating tube (14) and the stirring tube (16) both pass through the cover plate (17) and extend to the outside of the storage kettle (8), and the stirring tube (16) and the cover plate (17) are rotatably connected.

7. The zinc pyrrolidonecarboxylate production device according to claim 1, characterized in that: The outside of the dehydration reaction kettle (1) is connected in sequence to a dewatering condenser (18), a dewatering cooler (19) and a dewatering receiving tank (20).

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