Separation treatment device for mixed acid byproducts in industrial sulfanilamide synthesis

Abstract

The utility model discloses a separation treatment device for mixed acid byproducts in industrial sulfanilamide synthesis, which comprises a reaction tank, a top cover is arranged at the upper end of the reaction tank, and a fixed seat, a support and an acid injection port are sequentially arranged on the top cover from left to right; a first driving motor is arranged at the lower end of the reaction tank, the driving end of the first driving motor extends into the reaction tank and is connected with a stirring shaft, the first driving motor is arranged to drive stirring blades on the stirring shaft, so that the stirring blades perform stirring in the reaction tank, and an arranged filling pipe is externally connected with a preset alkali liquor pump; the alkali liquor is injected into the reaction tank according to the requirement of neutralization reaction, meanwhile, the mixed acid byproduct in the reaction tank is fully neutralized by fully stirring, and the neutralized substance in the barrel is diluted by adding water through the acid injection port after the reaction and is discharged from the preset drain outlet, so that the problems that manual stirring is needed at present, and the reaction time is shortened are solved. And part of waste mixed acid cannot be fully neutralized.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, and specifically relates to a separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis. Background Art

[0002] In the related art, the acid concentration of the mixed acid by-product in the industrial sulfonamide synthesis is generally low and the impurity content is high.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0004] At present, the commonly used method for treating the mixed acid by-products is to add alkali solution to neutralize it, inject the waste mixed acid into the reaction tank for stirring, and then add water to discharge it. The treatment effect is poor, the labor intensity is high, and some impurities will hang on the inner wall of the reaction tank. Utility Model Content

[0005] The utility model aims to provide a separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a separation and treatment device for mixed acid byproducts in industrial sulfonamide synthesis, comprising a reaction tank, the upper end of which is provided with a top cover, and the top cover is provided with a fixing seat, a bracket and an acid injection port in sequence from left to right;

[0007] A first drive motor is provided at the lower end of the reaction tank, a drive end of the first drive motor extends into the reaction tank and is connected to a stirring shaft, and a stirring blade is provided on the stirring shaft;

[0008] A filling pipe is provided through the bracket, a keyless bushing is provided on the filling pipe, a sprocket is provided on the keyless bushing, the lower end of the filling pipe extends into the cavity of the reaction tank and is connected to a shunt pipe, and a plurality of nozzles are provided on the shunt pipe.

[0009] Preferably, the fixing seat is slidably connected to the top cover and fixed by locking bolts, and is provided with a motor mounting frame, on which a second driving motor is longitudinally mounted, and the second driving motor is provided with a transmission wheel, and the transmission wheel is connected to the sprocket by a transmission chain.

[0010] Preferably, a sliding block is provided on the side wall of the fixing seat, and an adjusting bolt is provided on the sliding block, and the end of the adjusting bolt abuts against the fixing seat.

[0011] Preferably, the diverter tube is an arcuate diverter tube, and the length of the diverter tube is greater than half of the diameter of the reaction tank.

[0012] Preferably, the nozzles are distributed at both ends of the diverter pipe in a circular array and tilted downward, and are distributed at the lower side of the diverter pipe in a vertically downward manner.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides a first driving motor to drive the stirring blades on the stirring shaft, so that the stirring blades stir in the reaction tank; the provided filling pipe is externally connected to a preset alkali solution pump, and the alkali solution is added to the reaction tank as required for the neutralization reaction; at the same time, sufficient stirring is performed to fully neutralize the mixed acid by-products in the reaction tank; after the reaction, the neutralized substance in the barrel is diluted with water through the acid injection port and discharged from the preset sewage outlet, thereby solving the problem that manual stirring is currently required, resulting in failure to fully neutralize some of the waste mixed acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a main schematic diagram of the utility model;

[0015] Figure 2 It is a top view schematic diagram of the utility model.

[0016] In the figure: 1. reaction tank; 2. top cover; 3. fixing seat; 4. bracket; 5. acid injection port; 6. first drive motor; 7. stirring shaft; 8. stirring blade; 9. filling pipe; 10. keyless bushing; 11. sprocket; 12. diverter pipe; 13. nozzle; 14. motor mounting bracket; 15. second drive motor; 16. transmission wheel; 17. slider; 18. adjustment bolt. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-2The utility model provides a technical solution: a separation and treatment device for mixed acid byproducts in industrial sulfonamide synthesis, comprising a reaction tank 1, a top cover 2 is provided at the upper end of the reaction tank 1, and a fixing seat 3, a bracket 4 and an acid injection port 5 are provided on the top cover 2 from left to right; a first driving motor 6 is provided at the lower end of the reaction tank 1, and the driving end of the first driving motor 6 extends into the reaction tank 1 and is connected to a stirring shaft 7, and a stirring blade 8 is provided on the stirring shaft 7, and the stirring blade 8 is driven by the first driving motor 6 to stir the stirring blade 8 on the stirring shaft 7 in the reaction tank 1; a filling pipe 9 is provided through the bracket 4, and the filling pipe 9 is externally connected to a preset alkali solution A pump is used to add alkali solution into the reaction tank 1 according to the requirements of the neutralization reaction. A keyless bushing 10 is provided on the filling pipe 9. A sprocket 11 is provided on the keyless bushing 10. The sprocket 11 is a wheel with cog-type sprocket teeth for meshing with a block with an accurate pitch on a link chain or a cable, that is, a solid or spoked gear meshing with a roller chain to transmit motion. The lower end of the filling pipe 9 extends into the cavity of the reaction tank 1 and is connected to a shunt pipe 12. A plurality of nozzles 13 are provided on the shunt pipe 12. The nozzles 13 disperse and spray the alkali solution introduced by the filling pipe 9 to make the neutralization reaction in the reaction tank 1 more sufficient. At the same time, a sewage outlet is pre-arranged on the side wall of the reaction tank 1.

[0019] Specifically, the fixing seat 3 is slidably connected to the top cover 2 and fixed by locking bolts. A motor mounting frame 14 is provided on the fixing seat 3. A second driving motor 15 is longitudinally mounted on the motor mounting frame 14. A transmission wheel 16 is provided on the second driving motor 15. The transmission wheel 16 is connected to the sprocket 11 through a transmission chain. When the transmission wheel 16 rotates, the sprocket 11 is driven to rotate.

[0020] Specifically, a slider 17 is provided on the side wall of the fixing seat 3. The slider 17 is a slider for adjusting the bolt. An adjusting bolt 18 is provided on the slider 17. The end of the adjusting bolt 18 abuts against the fixing seat 3. The adjusting bolt 18 can be threadedly connected on the slider 17. The adjusting bolt 18 is turned to control its lateral movement on the slider 7, so that the fixing seat 3 abutted by it can be slightly adjusted in position on the top cover 2.

[0021] Specifically, the diverter pipe 12 is an arcuate diverter pipe, and the length of the diverter pipe 12 is greater than half the diameter of the reaction tank 1 . The water outlet of the arcuate diverter pipe is arranged downward to ensure that the alkali neutralization liquid sprayed from the diverter pipe 12 is evenly dispersed.

[0022] Specifically, the nozzles 13 are distributed at both ends of the diverter pipe 12 in a circular array and tilted downward, and are distributed at the lower side of the diverter pipe 12 in a vertically downward manner.

[0023] Working principle: When the utility model is working, the stirring blade 8 on the stirring shaft 7 is driven by the first driving motor 6, so that the stirring blade 8 stirs in the reaction tank 1, and the filling pipe 9 is externally connected to a preset alkali liquid pump, and the alkali liquid is added to the reaction tank 1 according to the requirements of the neutralization reaction. At the same time, the mixed acid by-product in the reaction tank 1 is fully neutralized by sufficient stirring. After the reaction, the neutralized substance in the barrel is diluted with water through the acid injection port 5 and discharged from the preset sewage outlet.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis, characterized in that: It comprises a reaction tank (1), wherein the upper end of the reaction tank (1) is provided with a top cover (2), and the top cover (2) is provided with a fixing seat (3), a bracket (4) and an acid injection port (5) in sequence from left to right; A first drive motor (6) is provided at the lower end of the reaction tank (1); a drive end of the first drive motor (6) extends into the reaction tank (1) and is connected to a stirring shaft (7); and a stirring blade (8) is provided on the stirring shaft (7); The bracket (4) is provided with a filling pipe (9) running through it, the filling pipe (9) is provided with a keyless shaft bushing (10), the keyless shaft bushing (10) is provided with a sprocket (11), the lower end of the filling pipe (9) extends into the cavity of the reaction tank (1) and is connected to a diverter pipe (12), and the diverter pipe (12) is provided with a plurality of nozzles (13).

2. The separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis according to claim 1, characterized in that: The fixing seat (3) is slidably connected to the top cover (2) and fixed by locking bolts. A motor mounting frame (14) is provided on the fixing seat. A second driving motor (15) is longitudinally mounted on the motor mounting frame (14). A transmission wheel (16) is provided on the second driving motor (15). The transmission wheel (16) is connected to the sprocket (11) by a transmission chain.

3. The separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis according to claim 2, characterized in that: A sliding block (17) is provided on the side wall of the fixing seat (3), and an adjusting bolt (18) is provided on the sliding block (17), wherein the end of the adjusting bolt (18) abuts against the fixing seat (3).

4. The separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis according to claim 1, characterized in that: The diverter pipe (12) is an arcuate diverter pipe, and the length of the diverter pipe (12) is greater than half the diameter of the reaction tank (1).

5. The separation and treatment device for mixed acid by-products in industrial sulfonamide synthesis according to claim 1, characterized in that: The nozzles (13) are distributed in a circular array and tilted downward at the ends of both sides of the diverter pipe (12), and are distributed in a vertically downward manner at the bottom of the diverter pipe (12).

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