2, 6-dichloro-p-nitroaniline wastewater treatment device

Abstract

The utility model discloses a 2, 6-dichloro-p-nitroaniline wastewater treatment device which comprises a liquid storage cylinder with an opening in the top, a vertical atomizing cylinder of which the bottom end is communicated with the liquid storage cylinder and the inner peripheral wall is uniformly provided with first spray heads, a medicine supply pipe externally connected to the outer peripheral wall of the atomizing cylinder, and an annular cavity which is arranged in the atomizing cylinder and is used for communicating the first spray heads with the medicine supply pipe, the top end of the vertical spraying pipe is fixedly connected with the inner top wall of the atomizing cylinder, second spraying heads are evenly distributed on the outer peripheral wall of the vertical spraying pipe, the liquid inlet pipe is externally connected to the top of the outer peripheral wall of the liquid storage cylinder, the circulating pipe is externally connected to the bottom of the outer peripheral wall of the liquid storage cylinder and communicated with the top of the spraying pipe, the circulating pump is connected to the circulating pipe in series, and the liquid outlet pipe is externally connected to the bottom of the outer peripheral wall of the liquid storage cylinder. According to the 2, 6-dichloro-p-nitroaniline wastewater treatment device disclosed by the utility model, 2, 6-dichloro-p-nitroaniline wastewater can be treated through a medicament, the medicament and the wastewater can be more effectively mixed, the reaction efficiency of the medicament and the wastewater can be improved, and the medicament can be more fully utilized.

Description

Technical Field

[0001] This utility model relates to a wastewater treatment device for 2,6-dichloro-p-nitroaniline. Background Technology

[0002] 2,6-Dichloro-p-nitroaniline can be used as an intermediate in the synthesis of dyes and pigments, particularly in the production of aromatic amine compounds. However, 2,6-dichloro-p-nitroaniline wastewater is highly acidic and produces numerous byproducts; therefore, it requires treatment before discharge.

[0003] Currently, the treatment of 2,6-dichloro-p-nitroaniline wastewater generally involves mixing the reagent with the wastewater and then treating it with the reagent. However, during the treatment process, insufficient mixing of the reagent with the wastewater can easily lead to problems that affect the treatment efficiency and effectiveness. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a 2,6-dichloro-p-nitroaniline wastewater treatment device, comprising: a vertically placed liquid storage cylinder with an open top and a closed bottom; a vertically placed atomizing cylinder fixed to the top of the liquid storage cylinder, with a closed top and an open bottom, the bottom of which is connected to the liquid storage cylinder, and first spray heads evenly distributed on its inner circumferential wall; a drug supply pipe connected to the outer circumferential wall of the atomizing cylinder; an annular cavity disposed inside the atomizing cylinder, connecting each first spray head to the drug supply pipe; a vertically placed spray pipe fixed to the inner top wall of the atomizing cylinder with a closed bottom and second spray heads evenly distributed on its outer circumferential wall; an inlet pipe connected to the top of the outer circumferential wall of the liquid storage cylinder; a circulation pipe connected to the bottom of the outer circumferential wall of the liquid storage cylinder and connected to the top of the spray pipe; a circulation pump connected in series with the circulation pipe and close to the liquid storage cylinder; and an outlet pipe connected to the bottom of the outer circumferential wall of the liquid storage cylinder.

[0005] Preferably, the bottom end of the spray pipe extends to the bottom of the atomizing cylinder.

[0006] Preferably, it further includes: a motor fixed to the bottom wall of the liquid storage cylinder, a vertical rotating shaft located in the liquid storage cylinder and fixed to the motor at its bottom end, and a plurality of stirring rods fixed on the rotating shaft.

[0007] Preferably, the top end of the rotating shaft is rotatably connected to the bottom end of the spray pipe via a bearing.

[0008] Preferably, a first filter screen is fixed at the connection between the circulation pipe and the liquid storage cylinder.

[0009] Preferably, a second filter screen is fixed at the connection between the liquid outlet pipe and the liquid storage cylinder.

[0010] Preferably, the atomizing cylinder and the liquid storage cylinder are coaxial; the spray pipe and the atomizing cylinder are coaxial; and the rotating shaft and the liquid storage cylinder are coaxial.

[0011] Preferably, the drug supply pipe is equipped with a drug supply valve; the liquid inlet pipe is equipped with a liquid inlet valve; and the liquid outlet pipe is equipped with a liquid outlet valve.

[0012] Preferably, it also includes a slag discharge port connected to the bottom of the outer peripheral wall of the liquid storage cylinder.

[0013] Preferably, the slag discharge port is sealed by a sealing cap.

[0014] The advantages and beneficial effects of this utility model are as follows: It provides a 2,6-dichloro-p-nitroaniline wastewater treatment device, which can treat 2,6-dichloro-p-nitroaniline wastewater with a reagent, and can make the reagent and wastewater more effectively mixed, improve the reaction efficiency of the reagent and wastewater, and make the reagent more fully utilized.

[0015] This utility model also has the following features:

[0016] This invention atomizes and sprays wastewater through a second spray head evenly distributed on the outer peripheral wall of the spray pipe, and atomizes and sprays the agent through a first spray head evenly distributed on the inner peripheral wall of the atomizing cylinder. The atomized agent and the atomized wastewater can be mixed more effectively, which can improve the reaction efficiency between the agent and the wastewater.

[0017] This invention thoroughly stirs the liquid in the storage cylinder, allowing the medicine falling into the storage cylinder to fully react with the wastewater in the cylinder, thereby enabling the medicine to be utilized more fully.

[0018] In the processing, this invention uses a first filter to intercept solid impurities generated during the reaction, preventing these impurities from entering the circulation pipe and spraying pipe, thus clogging the second spray head.

[0019] This invention uses a second filter to intercept solid impurities generated during the reaction, thus preventing solid impurities from being discharged with the treated wastewater. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0022] The specific technical solution of this utility model is as follows:

[0023] like Figure 1As shown, a 2,6-dichloro-p-nitroaniline wastewater treatment device includes: a vertically placed liquid storage cylinder 1 with an open top and a closed bottom; a vertically placed atomizing cylinder 2 fixed to the top of the liquid storage cylinder 1, with a closed top, an open bottom, and a bottom end communicating with the liquid storage cylinder 1, and with first spray heads 21 evenly distributed on its inner peripheral wall; a drug supply pipe 3 connected to the outer peripheral wall of the atomizing cylinder 2; an annular cavity 22 disposed inside the atomizing cylinder 2, connecting each first spray head 21 to the drug supply pipe 3; and a vertically placed spray pipe with its top fixed to the inner top wall of the atomizing cylinder 2, its bottom extending to the bottom of the atomizing cylinder 2, its bottom closed, and second spray heads 41 evenly distributed on its outer peripheral wall. 4. An inlet pipe 5 connected to the top of the outer peripheral wall of the liquid storage cylinder 1; a circulation pipe 6 connected to the bottom of the outer peripheral wall of the liquid storage cylinder 1 and connected to the top of the spray pipe 4; a circulation pump 61 connected in series with the circulation pipe 6 and close to the liquid storage cylinder 1; an outlet pipe 7 connected to the bottom of the outer peripheral wall of the liquid storage cylinder 1; a motor 81 fixed to the bottom wall of the liquid storage cylinder 1; a vertical rotating shaft 82 located in the liquid storage cylinder 1, fixed to the bottom end of the motor 81, and rotatably connected to the bottom end of the spray pipe 4 through a bearing 84; multiple stirring rods 83 fixed on the rotating shaft 82; and a slag discharge port 11 connected to the bottom of the outer peripheral wall of the liquid storage cylinder 1.

[0024] A first filter screen 91 is fixedly provided at the connection between the circulation pipe 6 and the liquid storage cylinder 1; a second filter screen 92 is fixedly provided at the connection between the liquid outlet pipe 7 and the liquid storage cylinder 1.

[0025] The atomizing cylinder 2 and the liquid storage cylinder 1 are coaxial; the spray pipe 4 and the atomizing cylinder 2 are coaxial; the rotating shaft 82 and the liquid storage cylinder 1 are coaxial.

[0026] The drug supply pipe 3 is equipped with a drug supply valve 31; the liquid inlet pipe 5 is equipped with a liquid inlet valve 51; the liquid outlet pipe 7 is equipped with a liquid outlet valve 71; and the slag discharge port 11 is sealed by a sealing cap.

[0027] The working principle of this utility model's 2,6-dichloro-p-nitroaniline wastewater treatment device includes:

[0028] The 2,6-dichloro-p-nitroaniline wastewater to be treated is fed into the storage tank 1 through the inlet pipe 5;

[0029] Then, the circulation pump 61 continuously inputs the wastewater in the storage tank 1 into the spray pipe 4 through the circulation pipe 6, and the second spray head 41 evenly distributed on the outer peripheral wall of the spray pipe 4 atomizes and sprays out the wastewater in the spray pipe 4; at the same time, the agent is input into the annular cavity 22 of the atomizing cylinder 2 through the supply pipe 3, and the first spray head 21 evenly distributed on the inner peripheral wall of the atomizing cylinder 2 atomizes and sprays out the agent in the annular cavity 22; the atomized agent and the atomized wastewater can be mixed more effectively, which can improve the reaction efficiency of the agent and the wastewater, and the wastewater after the reaction and the agent that did not participate in the reaction will eventually fall into the storage tank 1;

[0030] In addition, the motor 81 drives the stirring rod 83 to rotate through the rotating shaft 82, which can fully stir the liquid in the storage cylinder 1, so that the medicine falling into the storage cylinder 1 reacts fully with the wastewater in the cylinder, thereby making fuller use of the medicine.

[0031] After the wastewater in the storage cylinder 1 reacts fully with the reagent, the treated wastewater is output through the outlet pipe 7. The second filter screen 92 fixed at the connection between the outlet pipe 7 and the storage cylinder 1 can intercept the solid impurities generated by the reaction and prevent the solid impurities from being output with the treated wastewater.

[0032] Furthermore, during the processing, the first filter screen 91 fixed at the connection between the circulation pipe 6 and the liquid storage cylinder 1 can also intercept the solid impurities generated by the reaction, prevent the solid impurities from entering the circulation pipe 6, and thus prevent the solid impurities from entering the spray pipe 4 along the circulation pipe 6 and clogging the second spray head 41.

[0033] After the treated wastewater is discharged, the solid impurities produced in the reaction can be discharged through the slag discharge port 11.

[0034] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A 2,6-dichloro-p-nitroaniline wastewater treatment device, characterized by comprising: The utility model relates to a medicine spraying device, which comprises the following parts: a top open liquid storage cylinder, a vertical atomizing cylinder with a bottom end communicated with the liquid storage cylinder and a first spray head arranged on the inner circumferential wall of the atomizing cylinder in a uniform manner, a medicine supply pipe connected to the outer circumferential wall of the atomizing cylinder, an annular cavity arranged in the atomizing cylinder and connecting each first spray head with the medicine supply pipe, a vertical spray pipe with a top end fixed to the inner top wall of the atomizing cylinder and a second spray head arranged on the outer circumferential wall of the spray pipe in a uniform manner, a liquid inlet pipe connected to the top outer circumferential wall of the liquid storage cylinder, a circulation pipe connected to the bottom outer circumferential wall of the liquid storage cylinder and communicated with the top of the spray pipe, a circulation pump connected in series to the circulation pipe, and a liquid outlet pipe connected to the bottom outer circumferential wall of the liquid storage cylinder.

2. The 2,6-dichloro-p-nitroaniline wastewater treatment device according to claim 1, characterized by The bottom end of the spray pipe extends to the bottom of the atomizing cylinder.

3. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 2, characterized by The utility model further comprises: a motor fixed to the bottom outer wall of the liquid storage cylinder, a vertical rotating shaft arranged in the liquid storage cylinder and fixed to the bottom of the motor, and a plurality of stirring rods fixed to the rotating shaft.

4. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 3, characterized by The top end of the rotating shaft is rotatably connected to the bottom end of the spray pipe through a bearing.

5. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 1, characterized by A first filter screen is fixed to the connection between the circulation pipe and the liquid storage cylinder.

6. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 1, characterized by A second filter screen is fixed to the connection between the liquid outlet pipe and the liquid storage cylinder.

7. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 4, characterized by The atomizing cylinder and the liquid storage cylinder are coaxial; the spray pipe and the atomizing cylinder are coaxial; and the rotating shaft and the liquid storage cylinder are coaxial.

8. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 1, characterized by A medicine supply valve is arranged on the medicine supply pipe; a liquid inlet valve is arranged on the liquid inlet pipe; and a liquid outlet valve is arranged on the liquid outlet pipe.

9. The 2,6-dichloro-p-nitroaniline wastewater treatment apparatus according to claim 1, characterized by The utility model further comprises: a residue discharge port connected to the bottom outer circumferential wall of the liquid storage cylinder.

10. The 2,6-dichloro-p-nitroaniline wastewater treatment device according to claim 9, characterized by The residue discharge port is closed by a sealing cover.

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