Mixing device for nicosulfuron production

Abstract

The utility model discloses a mixing device for nicosulfuron production. Relates to the technical field of nicosulfuron production. The bottom of the mixing tank is provided with a mixing pipeline which is connected with an inlet of a booster pump A; an outlet of the booster pump A is connected with a sedimentation tank; inclined plate filler is arranged in the sedimentation tank; the sedimentation tank is provided with a finished product pipeline above the inclined plate filler; electric valves are arranged on the mixing pipeline, the finished product pipeline and the sludge discharge pipeline. The utility model has the beneficial effects that as a static settling mode is adopted in the settling tank, under the shallow settling action of the inclined plate filler, impurities settle at the lower part of the inclined plate filler, and a clean finished product is positioned at the upper part of the inclined plate filler, so that the clean finished product can be obtained, the impurities at the bottom of the settling tank are concentrated in the concentration hopper and discharged regularly, the impurities contain less finished product liquid, and the production efficiency is improved. And meanwhile, the finished product pipeline is connected with the security filter, so that the quality of the finished product is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to nicosulfuron production technical field especially, it relates to a nicosulfuron production is with mixing device. BACKGROUND

[0002] When nicosulfuron is produced, 2-ethoxycarbonylaminosulfonyl-N, N-dimethyl nicotinamide, 2-amino-4, 6-dimethoxypyrimidine, phase transfer catalyst and solvent are stirred to synthesize, and the impurities need to be removed after the synthesis of finished product, and currently the impurities are filtered out by using the method of filtering, and the problem of this method is that the impurities filtered out contain much finished product, causing the waste of finished product. SUMMARY

[0003] In order to solve the problem of finished product waste in the production of nicosulfuron at present, the utility model provides a nicosulfuron production is with mixing device.

[0004] The utility model discloses a technical scheme is: a nicosulfuron production is with mixing device, including mixing jar and sedimentation tank, be equipped with agitator and feed inlet on the mixing jar, and the mixing jar bottom is equipped with mixing pipeline connection booster pump A import, and booster pump A export connects the sedimentation tank, and the sedimentation tank is equipped with inclined plate filler, and booster pump A export is connected in the lower part of the inclined plate filler of the sedimentation tank, and the sedimentation tank is equipped with finished product pipeline in the upper part of the inclined plate filler, and the sedimentation tank bottom is equipped with sludge discharge pipeline, and sludge discharge pipeline connects sludge pump import, and all are equipped with electric valve on mixing pipeline, finished product pipeline and sludge discharge pipeline.

[0005] The space of the inclined plate filler of the sedimentation tank is greater than the volume of the mixing jar.

[0006] The liquid level meter is arranged on the mixing jar.

[0007] Finished product pipeline connects booster pump B, and booster pump B export connects security filter.

[0008] The conical thickener is arranged in the lower part of the sedimentation tank, and the thickener is connected with the sludge discharge pipeline.

[0009] The utility model has the advantages that: since the way of static settlement in the sedimentation tank is adopted, under the settlement of the shallow layer of the inclined plate filler, the impurities settle in the lower part of the inclined plate filler, and the clean finished product is located in the upper part of the inclined plate filler, so that the clean finished product can be obtained, the impurities in the bottom of the sedimentation tank are concentrated in the thickener, and are discharged by the sludge pump regularly, the finished product liquid contained in the impurities is little, the waste of the finished product is reduced, and the finished product pipeline is connected with the security filter, which guarantees the quality of the finished product. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model discloses a structure schematic diagram. Figure 1

[0011] ​In the diagram, 1-mixing tank, 2-agitator, 3-sedimentation tank, 4-inclined plate packing, 5-boost pump A, 6-boost pump B, 7-sludge pump, 8-concentrating hopper, 9-sludge discharge pipe, 10-mixing pipe, 11-finished product pipe, 12-security filter, 13-feed inlet, 14-level gauge. Detailed Implementation

[0012] like Figure 1 As shown, a mixing device for nicosulfuron production includes a mixing tank 1 and a settling tank 3. The mixing tank 1 is equipped with a stirrer 2 and a feed inlet 13. The bottom of the mixing tank 1 is equipped with a mixing pipe 10 connected to the inlet of a booster pump A5. The outlet of the booster pump A5 is connected to the settling tank 3. The settling tank 3 is equipped with inclined plate packing 4. The outlet of the booster pump A5 is connected to the lower part of the inclined plate packing 4 in the settling tank 3. The settling tank 3 is equipped with a finished product pipe 11 above the inclined plate packing 4. The bottom of the settling tank 3 is equipped with a sludge discharge pipe 9 connected to the inlet of a sludge discharge pump 7. Electric valves are installed on the mixing pipe 10, the finished product pipe 11, and the sludge discharge pipe 9.

[0013] The upper space of the inclined plate packing 4 in the settling tank 3 is larger than the volume of the mixing tank 1.

[0014] After all materials are mixed in mixing tank 1, the electric valve of mixing pipe 10 is opened, and booster pump A5 transports the mixed finished product and impurities to settling tank 3. Settling tank 3 can hold more than two times the volume of mixing tank 1 material at first, until the finished liquid above the inclined plate packing 4 is greater than the volume of one mixing tank 1. Then the electric valve of mixing pipe 10 is closed, and the mixed materials settle in settling tank 3 for 1 hour. Under the shallow settling action of inclined plate packing 4, impurities settle at the bottom of inclined plate packing 4. After settling, the electric valve of finished product pipe 11 is opened to discharge the clean finished product above the inclined plate packing 4. Each time, the finished liquid of one volume of mixing tank 1 is discharged, that is, the liquid below the inclined plate packing 4 remains still to prevent the settled impurities from being stirred up and rising again.

[0015] The mixing tank 1 is equipped with a level gauge to control the start and stop of the booster pump A5.

[0016] The finished pipe 11 is connected to the booster pump B6, and the outlet of the booster pump B6 is connected to the security filter 12. The security filter 12 is a PP cotton filter with a filtration accuracy of 5um.

[0017] The lower part of the sedimentation tank 3 is equipped with a conical thickening hopper 8, which is connected to the sludge discharge pipe 9.

[0018] Because of the way of static settlement in the settling tank 3, under the shallow settlement of the inclined plate filler 4, the impurities settle in the lower part of the inclined plate filler 4, and the clean product is located in the upper part of the inclined plate filler 4, so that the clean product can be obtained, the impurities at the bottom of the settling tank 3 are concentrated in the thickener 8, and are discharged periodically through the sludge pump 7, the impurities contain little product liquid, reducing the waste of the product, and the product pipeline 11 is connected with the security filter 12, serving as the guarantee of the quality of the product.

Claims

1. A mixing device for nicosulfuron production, comprising a mixing tank (1) and a settling tank (3), characterized in that: The mixing tank (1) is provided with a stirrer (2) and a feed inlet (13), the bottom of the mixing tank (1) is provided with a mixing pipeline (10) connected with the inlet of a booster pump A (5), the outlet of the booster pump A (5) is connected with a sedimentation tank (3), the sedimentation tank (3) is provided with an inclined plate filler (4), the outlet of the booster pump A (5) is connected with the lower part of the inclined plate filler (4) of the sedimentation tank (3), the upper part of the sedimentation tank (3) is provided with a finished product pipeline (11), the bottom of the sedimentation tank (3) is provided with a sludge discharge pipeline (9), the sludge discharge pipeline (9) is connected with the inlet of a sludge discharge pump (7), and the mixing pipeline (10), the finished product pipeline (11) and the sludge discharge pipeline (9) are all provided with electric valves.

2. The mixing device for producing nicosulfuron according to claim 1, characterized in that: The space of the upper part of the inclined plate filler (4) of the sedimentation tank (3) is greater than the volume of the mixing tank (1).

3. The mixing device for producing nicosulfuron according to claim 1, characterized in that: The mixing tank (1) is provided with a liquid level meter.

4. The mixing device for producing nicosulfuron according to claim 1, characterized in that: The finished product pipeline (11) is connected with a booster pump B (6), and the outlet of the booster pump B (6) is connected with a safety filter (12).

5. The nicosulfuron production mixing device according to claim 1, characterized in that: The lower part of the sedimentation tank (3) is provided with a conical thickener (8), and the thickener (8) is connected with the sludge discharge pipeline (9).

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