Chemical pharmaceutical wastewater treatment device

Abstract

The utility model discloses a chemical pharmaceutical wastewater treatment device which comprises a first reaction box and a second reaction box, the bottom of an inlet pipeline is connected with a liquid transverse pipe, and a plurality of liquid branch pipes are distributed on the liquid transverse pipe along the length direction of the liquid transverse pipe; a gas transverse pipe is connected to the bottom of the gas supply pipe, a plurality of gas branch pipes are distributed on the gas transverse pipe in the length direction of the gas transverse pipe, and the gas branch pipes are inserted into the liquid branch pipes in a one-to-one correspondence mode; the gas branch pipe and the liquid branch pipe are both provided with holes. The utility model relates to the technical field of pharmaceutical wastewater treatment, through the sleeved combination design that a plurality of gas branch pipes and a plurality of liquid branch pipes are arranged in a contact bin, a plurality of liquid feeding and gas feeding points are realized, so that gas is in direct contact with pumped flocculation liquid, uniform mixing of the gas and the liquid is realized, and the flocculation effect is improved. And the sprayed bubbles can more uniformly wrap suspended matters in the liquid, so that the precipitation of flocculates in the floating process is reduced, and the separation effect of the air flotation method is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical wastewater treatment technology, specifically a chemical pharmaceutical wastewater treatment device. Background Technology

[0002] Chemical pharmaceutical wastewater treatment is a crucial aspect of environmental protection and sustainable resource utilization. The treatment process generally involves pretreatment, primary treatment, intermediate treatment, and advanced treatment. In the pretreatment stage, the main objectives are to remove large particulate impurities and adjust the pH value to ensure the smooth progress of subsequent treatment processes. Filtering large particulate impurities is primarily achieved through bar screens and sieves, while pH adjustment is accomplished by adding acidic or alkaline substances. The primary treatment stage mainly includes coagulation sedimentation and air flotation. Coagulation sedimentation involves adding coagulants to the wastewater, causing fine suspended particles and some dissolved pollutants to aggregate into larger flocs, which are then removed through sedimentation. In air flotation, current technology uses a single air tube inserted into the contact area, with several openings at the bottom. In this method, the ejected gas mainly carries suspended matter around the tube to the surface, while the flocs further away from the tube have less contact with the air bubbles. This results in a large amount of flocs settling once the bubbles detach during the drifting process, reducing the separation effect and affecting the overall treatment efficiency. Furthermore, the uneven distribution of bubbles prevents the effective separation of some flocculants, increasing the difficulty and cost of subsequent treatment. Therefore, existing chemical pharmaceutical wastewater treatment technologies urgently need improvement to enhance treatment efficiency and reduce operating costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a chemical pharmaceutical wastewater treatment device that solves the problem of poor contact effect when the sprayed gas carries suspended matter far from the air pipe during the existing air flotation process.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a chemical pharmaceutical wastewater treatment device, comprising a first reaction tank and a second reaction tank, wherein the bottom of the second reaction tank is connected to an outlet pipe, the first reaction tank is provided with an inlet pipe and a suction pump connected to the second reaction tank, the interior of the second reaction tank is divided into a contact chamber and a separation chamber by a partition, and an air pump is provided on the second reaction tank, wherein an air supply pipe inserted into the contact chamber is connected to the air pump;

[0005] The bottom of the inlet pipe is connected to a liquid horizontal pipe, and several liquid branch pipes are distributed along its length; the bottom of the gas supply pipe is connected to a gas horizontal pipe, and several gas branch pipes are distributed along its length, with each gas branch pipe inserted into a corresponding liquid branch pipe; both the gas branch pipe and the liquid branch pipe have openings.

[0006] Preferably, the opening includes a jet outlet on the gas branch pipe and a mixing outlet on the liquid branch pipe.

[0007] Preferably, the jet holes are located on both sides of the gas branch pipe.

[0008] Preferably, the mixing outlet is located on the top surface of the liquid branch pipe.

[0009] Preferably, the gas branch pipe and the liquid branch pipe are coaxial, and a cavity is formed between the gas branch pipe and the liquid branch pipe.

[0010] Preferably, the liquid outlet pipe is connected to the separation chamber.

[0011] Preferably, the top of the partition is provided with an inclined surface that slopes toward the separation chamber, and the top of the inclined surface has a gap with the top surface of the second reaction chamber.

[0012] Preferably, the contact chamber is provided with a grid, which covers the liquid branch pipe.

[0013] Preferably, the grid includes a first grid and a second grid, with the second grid disposed on both sides of the top of the first grid.

[0014] The beneficial effects of this utility model are as follows: By using the chemical pharmaceutical wastewater treatment device provided by this utility model, multiple gas branch pipes and multiple liquid branch pipes are connected in a combination design in the contact chamber to realize multiple liquid and gas supply points, so that the gas directly contacts the pumped flocculent liquid, realizing uniform mixing of gas and liquid. The sprayed bubbles can more evenly carry the suspended matter in the liquid, reduce the sedimentation of flocculents during the floating process, and increase the contact area and contact time between bubbles and flocculents, thereby significantly improving the separation effect of air flotation. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This utility model Figure 1 Main view;

[0017] Figure 3 This utility model Figure 1 Top view;

[0018] Figure 4 This is a schematic diagram of the connection structure between the liquid branch pipe and the gas branch pipe of this utility model;

[0019] Figure 5 This utility model Figure 4 Sectional view along line AA;

[0020] Figure 6 This is a schematic diagram of the mesh structure of this utility model.

[0021] Explanation of reference numerals in the figure

[0022] 1. First reaction chamber; 2. Suction pump; 3. Inlet pipe; 4. Second reaction chamber; 5. Baffle; 6. Contact chamber; 7. Separation chamber; 8. Air pump; 9. Liquid outlet pipe; 10. Inclined surface; 11. Gas supply pipe; 12. Liquid horizontal pipe; 13. Gas horizontal pipe; 14. Grid; 141. First grid; 142. Second grid; 15. Liquid branch pipe; 16. Clamping cavity; 17. Jet nozzle; 18. Gas branch pipe; 19. Mixing outlet; 20. Support. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Various changes can be made to the implementation scheme as long as the effects of the present invention can be achieved.

[0024] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process.

[0025] like Figures 1 to 6 As shown in the figure, this application embodiment proposes a chemical pharmaceutical wastewater treatment device, including a first reaction tank 1 and a second reaction tank 4. The first reaction tank 1 is equipped with a stirring mechanism for flocculation reaction of pharmaceutical wastewater. The first reaction tank 1 is equipped with an inlet pipe 3 and a suction pump 2 connected to the second reaction tank 4. The second reaction tank 4 is equipped with a foaming device (not shown in the figure) at the top and an outlet pipe 9 at the bottom.

[0026] like Figures 1 to 3 As shown, the second reaction chamber 4 is divided into a contact chamber 6 and a separation chamber 7 by a partition 5. The outlet pipe 9 is connected to the separation chamber 7, and the inlet pipe 3 is connected to the contact chamber 6. The top of the partition 5 is provided with an inclined surface 10 that slopes towards the separation chamber 7, and there is a gap between the top of the inclined surface 10 and the top surface of the second reaction chamber 4. The flocculated drug solution pumped into the contact chamber 6 comes into contact with microbubbles, so that the suspended matter comes into contact with the microbubbles and then enters the separation chamber 7. The impurities are then removed by a skimmer, and the treated liquid flows into the next process through the outlet pipe 9.

[0027] The second reaction chamber 4 is equipped with an air pump 8, and the air pump 8 is connected to an air supply pipe 11 that is inserted into the contact chamber 6.

[0028] Furthermore, a liquid horizontal pipe 12 is connected to the bottom of the inlet pipe 3, and several liquid branch pipes 15 are distributed along the length of the liquid horizontal pipe 12; a gas horizontal pipe 13 is connected to the bottom of the gas supply pipe 11, and several gas branch pipes 18 are distributed along the length of the gas horizontal pipe 13, with each gas branch pipe 18 correspondingly inserted into a liquid branch pipe 15; both the gas branch pipes 18 and the liquid branch pipes 15 have openings. The flocculated drug solution enters the contact chamber 6 through several liquid branch pipes 15, and the gas is sprayed into the liquid branch pipes 15 through several gas branch pipes 18. The gas carries impurities in the liquid, contacts and passes through the openings, floats on the surface of the contact chamber 6, and flows into the separation chamber 7 for natural separation.

[0029] Specifically, the openings include a jet hole 17 on the gas branch pipe 18 and a mixing outlet 19 on the liquid branch pipe 15. The jet hole 17 is located on both sides of the gas branch pipe 18; the mixing outlet 19 is located on the top surface of the liquid branch pipe 15.

[0030] The gas branch pipe 18 and the liquid branch pipe 15 are coaxial, and a cavity 16 is formed between the gas branch pipe 18 and the liquid branch pipe 15.

[0031] In one embodiment, gas is injected through the jet holes 17 on both sides of each gas branch pipe 18 into the cavity 16 between the gas branch pipe 18 and the liquid branch pipe 15, so that several liquid branches and several liquid-gas branches come into direct contact, thereby improving the contact efficiency between gas and liquid and thus improving the contact rate between microbubbles and impurities.

[0032] Additionally, a grid 14 is provided inside the contact chamber 6, covering the liquid branch pipe 15. This allows microbubbles and impurities to be dispersed by the grid 14, preventing them from accumulating. Specifically, the grid 14 includes a first grid 141 and a second grid 142. In this embodiment, the first grid 141 is a large-opening "V" shape, and the second grid 142 is a flat plate, fixed to the top two sides of the first grid 141 by connecting beams. Specifically, the two second grids 142 are parallel to the two plates of the first grid 141; for example, the second grid 142 on the left is parallel to the right plate of the first grid 141, and the second grid 142 on the right is parallel to the left plate of the first grid 141.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical pharmaceutical wastewater treatment device, comprising a first reaction tank and a second reaction tank, wherein the bottom of the second reaction tank is connected to an outlet pipe, and the first reaction tank is provided with an inlet pipe and a suction pump connected to the second reaction tank, characterized in that, The second reaction chamber is divided into a contact chamber and a separation chamber by a partition. An air pump is installed on the second reaction chamber, and an air supply pipe is connected to the air pump and inserted into the contact chamber. The bottom of the inlet pipe is connected to a liquid horizontal pipe, and several liquid branch pipes are distributed along its length; the bottom of the gas supply pipe is connected to a gas horizontal pipe, and several gas branch pipes are distributed along its length, with each gas branch pipe inserted into a corresponding liquid branch pipe; both the gas branch pipe and the liquid branch pipe have openings.

2. The chemical pharmaceutical wastewater treatment device according to claim 1, characterized in that: The openings include a jet outlet on the gas branch pipe and a mixing outlet on the liquid branch pipe.

3. The chemical pharmaceutical wastewater treatment device according to claim 2, characterized in that: The jet holes are located on both sides of the gas branch pipe.

4. The chemical pharmaceutical wastewater treatment device according to claim 2, characterized in that: The mixing outlet is located on the top surface of the liquid branch pipe.

5. The chemical pharmaceutical wastewater treatment device according to claim 1, characterized in that: The gas branch pipe and the liquid branch pipe are coaxial, and a cavity is formed between the gas branch pipe and the liquid branch pipe.

6. The chemical pharmaceutical wastewater treatment device according to claim 1, characterized in that: The liquid outlet pipe is connected to the separation chamber.

7. The chemical pharmaceutical wastewater treatment device according to claim 1, characterized in that: The top of the partition is provided with an inclined surface that slopes toward the separation chamber, and the top of the inclined surface has a gap with the top surface of the second reaction chamber.

8. The chemical pharmaceutical wastewater treatment device according to claim 1, characterized in that: The contact chamber is equipped with a grid, which covers the liquid branch pipe.

9. A chemical pharmaceutical wastewater treatment device according to claim 8, characterized in that: The grid includes a first grid and a second grid, with the second grid located on both sides of the top of the first grid.

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