Nitrogen-containing wastewater recovery device

Abstract

The utility model relates to the technical field of nitrogenous wastewater treatment, in particular to a nitrogenous wastewater recovery device. The nitrogen-containing wastewater recovery device comprises a recovery box, an opening allowing a nitric acid packaging barrel to be reversely buckled is formed in the top of the recovery box, and a fixing assembly used for fixing the nitric acid packaging barrel is arranged above the recovery box, so that the nitric acid packaging barrel can be stably and reversely buckled in the recovery box; a spraying assembly penetrating through the opening and extending into the nitric acid packaging barrel is arranged in the recycling box, the spraying assembly comprises a spraying barrel, a plurality of spraying pipes are arranged on the spraying barrel, spraying heads are installed on the spraying pipes, nozzles are distributed on the spraying heads, and the spraying heads are communicated with the spraying barrel. Remaining nitric acid in the nitric acid packaging barrel is recycled through the spraying assembly, the nitric acid recycling rate is increased, and meanwhile the treatment difficulty of comprehensive wastewater is effectively improved. The device is simple in structure, reasonable in design and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen-containing wastewater treatment, in particular to a nitrogen-containing wastewater recovery device. Background Art

[0002] Electronic grade nitric acid is a strong acid with strong corrosive and oxidizing properties. It is easily decomposed by light and is a colorless transparent liquid at room temperature. Electronic grade nitric acid is used in high-tech fields such as electronic components, semiconductors, and photovoltaics. Therefore, the purity of electronic grade nitric acid is extremely high, and it needs to meet strict requirements such as low metal ion content and low particulate matter content.

[0003] In the existing production process of electronic-grade nitric acid, 70% industrial nitric acid is often used as raw material, and the raw material is usually stored in packaging barrels. When electronic-grade nitric acid needs to be produced, 70% industrial nitric acid raw material is put into the distillation tower. After the feeding is completed, some industrial nitric acid often remains in the raw material packaging barrel. At present, in order to prevent the residual industrial nitric acid from being randomly placed and causing dangerous accidents, the staff often uses a cleaning method to clean the packaging barrel. However, the nitrogen-containing wastewater generated during the cleaning process is discharged into the sewage treatment system, which not only causes a waste of raw industrial nitric acid, but also increases the difficulty of treatment and operating costs of the sewage treatment system.

[0004] In view of this, the present application proposes a nitrogen-containing wastewater recovery device to recover industrial nitric acid. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a nitrogen-containing wastewater recovery device.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a nitrogen-containing wastewater recovery device, including a recovery box, an opening for a nitric acid packaging barrel to be turned upside down is opened on the top of the recovery box, a fixing component for fixing the nitric acid packaging barrel is provided above the recovery box, a spray component passing through the opening and extending into the nitric acid packaging barrel is provided in the recovery box, the spray component includes a spray barrel, a plurality of spray pipes are provided on the spray barrel, a spray head is installed on the spray pipe, and nozzles are distributed on the spray head.

[0007] Furthermore, the spray assembly also includes a circulating water pump, the water inlet end of the circulating water pump is connected to the recovery tank, and the water outlet end of the circulating water pump is connected to the spray barrel.

[0008] Furthermore, the spray pipes are arranged on the side and top of the spray cylinder.

[0009] Furthermore, the spray pipes arranged on the sides of the spray cylinder are symmetrically arranged.

[0010] Furthermore, the fixing component includes a clamping plate abutting against the outer wall of the nitric acid packaging barrel, a fixing seat is provided at the bottom of the clamping plate, a threaded rod is movably connected to the fixing seat, and a driving motor is provided at one end of the threaded rod.

[0011] Furthermore, a frame body for the threaded rod to move is provided on the top of the recovery box, and the other end of the threaded rod passes through the frame body and is connected to the output end of the driving motor.

[0012] Furthermore, the bottom of the driving motor abuts against the top of the recovery box.

[0013] Furthermore, the clamping plates include two pieces, and the two clamping plates are symmetrically arranged; and the clamping plate is provided with an arc-shaped groove matching the nitric acid packaging barrel on the side facing the nitric acid packaging barrel.

[0014] Furthermore, a water inlet pipe is provided on the side of the recovery box, the water inlet pipe is connected to a liquid pump, and the water inlet end of the liquid pump is connected to a water storage tank.

[0015] Furthermore, a water outlet pipe is provided at the bottom of the recovery box, and a control valve is connected to the water outlet pipe.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The present application provides an opening at the top of a recycling box for a nitric acid packaging barrel to be turned upside down, and a fixing assembly for fixing the nitric acid packaging barrel is provided above the recycling box, so that the nitric acid packaging barrel can be stably turned upside down in the recycling box; a spray assembly is provided in the recycling box that passes through the opening and extends into the nitric acid packaging barrel, and the spray assembly includes a spray cylinder, and a plurality of spray pipes are provided on the spray cylinder, and a spray head is installed on the spray pipe, and nozzles are distributed on the spray head, so that the nitric acid remaining in the nitric acid packaging barrel can be recycled through the spray assembly, thereby increasing the recycling rate of nitric acid and effectively improving the difficulty of treating comprehensive wastewater.

[0018] 2. The utility model has a simple structure, reasonable design and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a nitrogen-containing wastewater recovery device in a preferred embodiment of the utility model;

[0020] Figure 2 It is a schematic structural diagram of a nitrogen-containing wastewater recovery device without a nitric acid packaging barrel in a preferred embodiment of the utility model.

[0021] Figure numerals: 1. Recovery box; 2. Nitric acid packaging barrel; 3. Opening; 4. Fixing assembly; 401. Snap-in plate; 402. Fixing seat; 403. Threaded rod; 404. Driving motor; 5. Spraying assembly; 501. Spraying cylinder; 502. Spraying pipe; 503. Spraying head; 504. Nozzle; 505. Circulating water pump; 6. Frame; 7. Water inlet pipe; 8. Liquid pump; 9. Water storage tank; 10. Water outlet pipe; 11. Control valve. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-Figure 2 As shown, a preferred embodiment of the utility model is a nitrogen-containing wastewater recovery device, comprising a recovery box 1, wherein the top of the recovery box 1 is provided with an opening 3 for a nitric acid packaging barrel 2 to be turned upside down, and a fixing component 4 for fixing the nitric acid packaging barrel 2 is provided above the recovery box 1, so that the nitric acid packaging barrel can be stably turned upside down in the recovery box; a spray component 5 that passes through the opening 3 and extends into the nitric acid packaging barrel is provided in the recovery box 1, and the spray component 5 includes a spray barrel 501, and a plurality of spray pipes 502 are provided on the spray barrel 501, and a spray head 503 is installed on the spray pipe 502, and nozzles 504 are distributed on the spray head 503, so that the nitric acid remaining in the nitric acid packaging barrel can be recycled through the spray component 5, thereby increasing the recovery rate of nitric acid and effectively improving the difficulty of treating comprehensive wastewater.

[0024] As a preferred embodiment of the utility model, it may also have the following additional technical features: the spray assembly 5 further includes a circulating water pump 505, the water inlet end of the circulating water pump 505 is connected to the recycling tank 1, and the water outlet end of the circulating water pump 505 is connected to the spray barrel 501. In this way, the water in the recycling tank can be recycled to avoid the waste of water resources.

[0025] In this embodiment, the spray pipes 502 are arranged on the side and top of the spray barrel 501, and the spray pipes 502 arranged on the side of the spray barrel 501 are symmetrically arranged. Therefore, the spray pipes can thoroughly clean the nitric acid packaging barrel and recover the residual nitric acid in the nitric acid packaging barrel to the greatest extent.

[0026] In this embodiment, the fixing assembly 4 includes a clamping plate 401 that abuts against the outer wall of the nitric acid packaging barrel 2, a fixing seat 402 is provided at the bottom of the clamping plate 401, a threaded rod 403 is movably connected to the fixing seat 402, and a driving motor 404 is provided at one end of the threaded rod 403; a frame 6 for the threaded rod 403 to move is provided at the top of the recycling box 1, and the other end of the threaded rod 403 penetrates the frame 6 and is connected to the output end of the driving motor 404, and the bottom of the driving motor 404 abuts against the top of the recycling box 1. Thus, by starting the driving motor 404, the threaded rod 403 is driven to rotate, thereby driving the fixing seat 402 on the threaded rod 403 to move left and right, and then driving the clamping plate 401 to move to fix or loosen the nitric acid packaging barrel, wherein the fixing seat moves with the rotation of the threaded rod according to the existing technology, such as providing a threaded line matching the threaded rod in the fixing seat, which will not be described in detail in this embodiment.

[0027] In this embodiment, the clamping plates 401 include two pieces, and the two clamping plates 401 are symmetrically arranged; and the clamping plates 401 are provided with an arc-shaped groove matching the nitric acid packaging barrel on the side facing the nitric acid packaging barrel 2, thereby achieving stable fixation of the nitric acid packaging barrel 2, so that the nitric acid packaging barrel 2 will not fall off under the flushing of the spray assembly.

[0028] In this embodiment, a water inlet pipe 7 is provided on the side of the recovery box 1, and a liquid pump 8 is connected to the water inlet pipe 7, and a water storage tank 9 is connected to the water inlet end of the liquid pump 8; a water outlet pipe 10 is provided at the bottom of the recovery box 1, and a control valve 11 is connected to the water outlet pipe 10. Therefore, when the nitric acid solution in the recovery box reaches a preset concentration, the nitric acid solution is discharged to the production equipment of the electronic grade nitric acid solution through the water outlet pipe 10 by opening the control valve 11, and then the liquid pump 8 is started to pump the water in the water storage tank 9 into the recovery box 1, and the nitric acid packaging barrel 2 is cleaned.

[0029] The working principle of the utility model is as follows: when in use, the nitric acid packaging barrel 2 is placed upside down on the opening 3 at the top of the recycling box 1, and the driving motor 404 is started to drive the threaded rod 403 to rotate, thereby driving the fixing seat 402 on the threaded rod 403 to move left and right, and then driving the clamping plate 401 to move to fix the nitric acid packaging barrel; then the circulating water pump 505 is started to pump water to the spray barrel 501, and the water is sprayed by the spray head 503 on the spray pipe 502, and the nitric acid remaining in the nitric acid packaging barrel is cleaned, and the water containing nitric acid flows back to the recycling box 1, so as to realize the recovery of nitric acid, increase the recovery rate of nitric acid, and effectively improve the difficulty of treating comprehensive wastewater. The device of this embodiment is provided with a controller and a power supply electrically connected to the controller, and the controller is electrically connected to the driving motor 404, the circulating water pump 506, the liquid pump 8, and the control valve 12. The circuit connection can be realized according to the prior art, and this embodiment will not be repeated one by one.

[0030] Under the premise that no conflict occurs, those skilled in the art may freely combine and superimpose the above-mentioned additional technical features.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A nitrogen-containing wastewater recovery device, characterized in that: It comprises a recycling box, the top of which is provided with an opening for a nitric acid packaging barrel to be turned upside down, a fixing component for fixing the nitric acid packaging barrel is provided above the recycling box, a spray component penetrating through the opening and extending into the nitric acid packaging barrel is provided in the recycling box, the spray component comprises a spray cylinder, a plurality of spray pipes are provided on the spray cylinder, a spray head is installed on the spray pipe, and nozzles are distributed on the spray head.

2. The nitrogen-containing wastewater recovery device according to claim 1, characterized in that: The spray assembly also includes a circulating water pump, a water inlet end of the circulating water pump is connected to the recovery tank, and a water outlet end of the circulating water pump is connected to the spray barrel.

3. The nitrogen-containing wastewater recovery device according to claim 1, characterized in that: The spray pipes are arranged on the side and top of the spray cylinder.

4. The nitrogen-containing wastewater recovery device according to claim 3 is characterized in that: The spray pipes arranged on the sides of the spray cylinder are symmetrically arranged.

5. The nitrogen-containing wastewater recovery device according to claim 1, characterized in that: The fixing assembly comprises a clamping plate abutting against the outer wall of the nitric acid packaging barrel, a fixing seat is provided at the bottom of the clamping plate, a threaded rod is movably connected to the fixing seat, and a driving motor is provided at one end of the threaded rod.

6. The nitrogen-containing wastewater recovery device according to claim 5, characterized in that: A frame body for the threaded rod to move is arranged on the top of the recovery box, and the other end of the threaded rod passes through the frame body and is connected with the output end of the driving motor.

7. The nitrogen-containing wastewater recovery device according to claim 6, characterized in that: The bottom of the driving motor abuts against the top of the recovery box.

8. The nitrogen-containing wastewater recovery device according to claim 5, characterized in that: The clamping plates include two pieces, which are symmetrically arranged; and the side of the clamping plate facing the nitric acid packaging barrel is provided with an arc-shaped groove matching the nitric acid packaging barrel.

9. The nitrogen-containing wastewater recovery device according to claim 1, characterized in that: A water inlet pipe is provided at the side of the recovery box, a liquid pump is connected to the water inlet pipe, and a water storage tank is connected to the water inlet end of the liquid pump.

10. The nitrogen-containing wastewater recovery device according to claim 1, characterized in that: A water outlet pipe is provided at the bottom of the recovery box, and a control valve is connected to the water outlet pipe.

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