PVD (Physical Vapor Deposition) wastewater pretreatment device

Abstract

The utility model relates to a PVD (Physical Vapor Deposition) wastewater pretreatment device, which belongs to the technical field of wastewater treatment and comprises a temporary storage tank, a reaction tank and a sedimentation tank, a first mounting plate is mounted at the top of the temporary storage tank, and a premixing component is arranged at the top of the first mounting plate; and the premixing assembly comprises a driving motor, and the driving motor is fixedly connected to the top of the first mounting plate. According to the PVD wastewater pretreatment device, firstly, when an air blower body operates to blow air, air is conducted into a rotating seat through a connecting pipe at the bottom of a cover plate, then is transferred into an air outlet plate through a hollow rod and finally mixes wastewater, and during mixing, a driving motor can be started to drive a bevel gear and a bevel gear ring to rotate in an engaged manner, so that the wastewater is mixed; the rotating seat rotates at the top of the first mounting plate, at the moment, the cover plate and the rotating seat are in friction sealing, and fan blades connected with an air outlet plate perform pre-mixing treatment on the wastewater, so that the wastewater can be subjected to preliminary mixing operation while air is blown, and the subsequent working efficiency is ensured to be higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field, concretely is a kind of PVD wastewater pretreatment device. BACKGROUND

[0002] PVD physical vapor deposition technology is a technology that under vacuum condition, using physical method, material source-solid or liquid surface vaporization into gaseous atom, molecule or partial ionization into ion, and through low pressure gas (or plasma) process, depositing thin film with certain special function on substrate surface.The main methods of physical vapor deposition include vacuum evaporation, sputtering coating, arc plasma coating, ion coating and molecular beam epitaxy.

[0003] According to Chinese patent CN211971998U, a kind of PVD wastewater pretreatment device, first, raw water is stored in the temporary storage pool, the air blower is opened, the wastewater in temporary storage pool keeps mixed uniform state, can make metal pollutant content uniform, can be convenient control subsequent reaction material addition;Then the wastewater in temporary storage pool is pumped into the reaction pool, the pH is adjusted by the sulfuric acid dosing device, when the pH detector detects the pH display 2-3, complete pH adjustment, then the sodium bisulfite or sodium thiosulfate dosing device is added to the reaction pool, sodium bisulfite or sodium thiosulfate, high-valence toxic metal cation in wastewater is reduced into low-valence metal cation, for example, hexavalent chromium is reduced into trivalent chromium, then the pH is adjusted to alkaline by the sodium hydroxide dosing device, such as pH=8.5, low-valence metal cation generates precipitate, finally the supernatant is discharged through the sedimentation tank, so as to reduce the load of subsequent wastewater disposal. The above device mixes in temporary storage pool, only rely on air blower to make wastewater in uniform mixed state, its effect is not good and easy to occur preliminary sedimentation, it can lead to the workload of agitator in reaction pool increases, and then affect the progress of subsequent work, then the filter screen in sedimentation tank is not provided with replacement part, and it is easy to occur unfavorable situation for a long time, therefore a kind of PVD wastewater pretreatment device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of PVD wastewater pretreatment device, with wastewater in the process of pretreatment, wastewater in temporary storage pool can achieve the effect of preliminary mixing, lay a good foundation for subsequent reaction, and filter screen can be replaced after a period of use, etc.Advantages, solve the problem that only rely on air blower to make wastewater in uniform mixed state, its effect is not good and easy to occur preliminary sedimentation, it can lead to the workload of agitator in reaction pool increases, and then affect the progress of subsequent work, then the filter screen in sedimentation tank is not provided with replacement part, and it is easy to occur unfavorable situation for a long time.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a PVD wastewater pretreatment device, including temporary storage pool, reaction pool and sedimentation tank, the top of temporary storage pool is equipped with first mounting plate, the top of first mounting plate is provided with premixing component;

[0006] The premixing component includes a driving motor, the driving motor is fixedly connected to the top of the first mounting plate, the output end of the driving motor is fixedly connected with a bevel gear, the top of the first mounting plate is rotatably connected with a rotating seat, the outer surface of the rotating seat is fixedly connected with a bevel gear ring, the bottom of the rotating seat is fixedly connected with a hollow rod, the bottom of the hollow rod is fixedly connected with an air outlet plate, the top of the air outlet plate is fixedly connected with a fan blade, and the inside of the sedimentation tank is provided with a replacement component.

[0007] Further, the replacement component includes a mounting bracket, the mounting bracket is fixedly connected to the top of the sedimentation tank, the top of the mounting bracket is fixedly connected with a winch, the outer surface of the winch is wound with a steel wire rope, and one end of the steel wire rope away from the winch is fixedly connected with a filter box.

[0008] Further, the outer surface of the filter box is fixedly connected with two protective plates, the inside of the filter box is fixedly connected with six partition plates, and each three partition plates are symmetrically distributed on the inner walls on the left and right sides of the filter box, the inner wall of the filter box is fixedly connected with a second mounting plate, and the outer surface of the second mounting plate is clampedly connected with a filter screen plate.

[0009] Further, the left side of the temporary storage pool is fixedly connected with a blower body, the output end of the blower body is fixedly connected with a cover plate, the bottom of the cover plate is fixedly connected with a connecting pipe, and the connecting pipe movably connects the bottom with the inside of the rotating seat.

[0010] Further, the inside of the reaction pool is provided with a stirrer, a pH detector, an ORP detector, a sulfuric acid dosing device, a sodium bisulfite or sodium thiosulfate dosing device and a sodium hydroxide dosing device.

[0011] Further, the front surface and the back surface of the air outlet plate are both provided with air outlet holes, and the number of the fan blades is not less than eight.

[0012] Compared with the prior art, the technical scheme of the application has the following beneficial effects:

[0013] 1、The PVD wastewater pretreatment device, first when the blower body is running blowing, air is conducted to the inside of the rotating seat through the connecting pipe at the bottom of the cover plate, then is transmitted to the inside of the air outlet plate through the hollow rod, and finally the wastewater is mixed, and when mixing, the driving motor can be started to drive the bevel gear and the bevel gear ring to mesh and rotate, so that the rotating seat rotates at the top of the first mounting plate, at this time the cover plate and the rotating seat are in friction sealing, and the fan blades connected to the air outlet plate pretreat the wastewater, so that the wastewater can be preliminarily mixed while blowing, and the subsequent work efficiency is higher. 2、The PVD wastewater pretreatment device, the filter box is started to drive the filter box to separate from the inside of the sedimentation tank after the filter screen plate is used for a period of time, and the filter screen plate can be pulled out in sequence, so that the filtering effect of the filter screen plate is not affected in the subsequent use process. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the main sectional view of the utility model structure;

[0015] Fig. 2 It is the plan view of the utility model structure;

[0016] Fig. 3 It is the utility model structure perspective view. In the drawing: 1, temporary storage pool;2, reaction tank;3, sedimentation tank;4, first mounting plate;5, driving motor;6, bevel gear;7, rotating seat;8, bevel gear ring;9, blower body;10, cover plate;11, connecting pipe;12, hollow rod;13, air outlet plate;14, fan blade;15, mounting bracket;16, winch;17, filter box;18, guard plate;19, partition plate;20, second mounting plate;21, filter screen plate. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figs. 1-3 A PVD wastewater pretreatment device in the embodiment comprises a temporary storage pool 1, a reaction tank 2 and a sedimentation tank 3, the inside of the reaction tank 2 is provided with a stirrer, a pH detector, an ORP detector, a sulfuric acid dosing device, a sodium bisulfite or sodium thiosulfate dosing device and a sodium hydroxide dosing device.

[0019] The top of the temporary storage pool 1 is provided with a first mounting plate 4, and a premixing assembly is arranged at the top of the first mounting plate 4; the premixing assembly comprises a driving motor 5 fixedly connected to the top of the first mounting plate 4, a bevel gear 6 fixedly connected to the output end of the driving motor 5, a rotating seat 7 rotatably connected to the top of the first mounting plate 4, a blower body 9 fixedly connected to the left side of the temporary storage pool 1, a cover plate 10 fixedly connected to the output end of the blower body 9, a connecting pipe 11 fixedly connected to the bottom of the cover plate 10, and the connecting pipe 11 movably connects the bottom to the inside of the rotating seat 7.

[0020] The outer surface of the rotating seat 7 is fixedly connected with a bevel gear ring 8, the bottom of the rotating seat 7 is fixedly connected with a hollow rod 12, the bottom of the hollow rod 12 is fixedly connected with an air outlet plate 13, air outlet holes are arranged on the front and back surfaces of the air outlet plate 13, the top of the air outlet plate 13 is fixedly connected with a plurality of fan leaves 14, and the number of the fan leaves 14 is not less than eight.

[0021] The inside of the sedimentation tank 3 is provided with a replacement assembly, the replacement assembly comprises a mounting bracket 15 fixedly connected to the top of the sedimentation tank 3, and a winch 16 fixedly connected to the top of the mounting bracket 15, the outer surface of the winch 16 is wound with a steel wire rope, one end of the steel wire rope away from the winch is fixedly connected with a filter box 17, and the outer surface of the filter box 17 is fixedly connected with two protective plates 18.

[0022] The inside of the filter box 17 is fixedly connected with six partition plates 19, and each three partition plates are symmetrically distributed on the inner walls on the left and right sides of the filter box 17, the inner walls of the filter box 17 are fixedly connected with a second mounting plate 20, and the outer surface of the second mounting plate 20 is clampedly connected with a filter screen plate 21.

[0023] In this embodiment, the number of the filter screen plates 21 is four, the sizes of the filter screen holes of the filter screen plates 21 gradually decrease from bottom to top, so that the filtering effect is better during filtering, and the filter screen plates 21 are clampedly connected with the second mounting plate 20.

[0024] In this embodiment, the rotating seat 7 is connected with the cover plate 10, so that the wastewater in the temporary storage pool 1 can be stirred and mixed by blowing air during preliminary mixing, and the uniformity of mixing is further improved.

[0025] In this embodiment, the operation relationship of the temporary storage pool 1 and the reaction pool 2 and the precipitation pool 3 is as follows: first, the raw wastewater is stored in the temporary storage pool, the air blower is started, and the wastewater in the temporary storage pool is kept in a mixed and uniform state, so that the content of metal pollutants is uniform, and the addition of materials for subsequent reaction can be conveniently controlled; then the wastewater in the temporary storage pool is pumped into the reaction pool, the pH is adjusted by the sulfuric acid dosing device, and when the pH detector detects that the pH is 2-3, the pH adjustment is completed, then sodium bisulfite or sodium thiosulfate is added to the reaction pool through the sodium bisulfite or sodium thiosulfate dosing device, the high-valence toxic metal cations in the wastewater are reduced to low-valence metal cations, for example, hexavalent chromium is reduced to trivalent chromium, then the pH is adjusted to alkaline by the sodium hydroxide dosing device, for example, pH = 8.5, so that the low-valence metal cations generate precipitates, and finally the supernatant is discharged through the precipitation pool, thereby reducing the load of subsequent wastewater treatment.

[0026] The working principle of the above embodiment is as follows:

[0027] The PVD wastewater pretreatment device first conducts air blowing when the air blower body 9 is in operation, air is conducted to the inside of the rotating seat 7 through the connecting pipe 11 at the bottom of the cover plate 10, then transmitted to the inside of the air outlet plate 13 through the hollow rod 12, and finally mixed with the wastewater. When mixing, the driving motor 5 can be started to drive the bevel gear 6 and the bevel gear ring 8 to rotate in meshing, so that the rotating seat 7 rotates on the top of the first mounting plate 4. At this time, the cover plate 10 is in frictional sealing with the rotating seat 7, and the fan blade 14 connected to the air outlet plate 13 performs preliminary mixing treatment on the wastewater, so that the wastewater can be preliminarily mixed while blowing, ensuring higher subsequent work efficiency. The filter box 17 is started to drive the filter box 17 to separate from the inside of the precipitation pool 3 after the filter screen plate 21 is used for a period of time, and the filter screen plate 21 can be pulled out in sequence, ensuring that the filtering effect of the filter screen plate 21 is not affected in the subsequent use process.

[0028] It should be noted that the standard parts used in the application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the mature bolt, rivet, welding and other connection modes in the prior art, conventional means, and the mechanical parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0029] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0030] While the embodiments of the present application have been shown and described with respect to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. Therefore, the scope of the application should not be limited by the embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims

1. A PVD wastewater pretreatment device, comprising a temporary storage tank (1), a reaction tank (2), and a sedimentation tank (3), characterized in that: The top of the temporary storage pool (1) is equipped with a first mounting plate (4), and a premixing component is provided on the top of the first mounting plate (4); The premixing component includes a drive motor (5), which is fixedly connected to the top of the first mounting plate (4). A bevel gear (6) is fixedly connected to the output end of the drive motor (5). A rotating seat (7) is rotatably connected to the top of the first mounting plate (4). A bevel gear ring (8) is fixedly connected to the outer surface of the rotating seat (7). A hollow rod (12) is fixedly connected to the bottom of the rotating seat (7). An air outlet plate (13) is fixedly connected to the bottom of the hollow rod (12). A fan blade (14) is fixedly connected to the top of the air outlet plate (13). A replacement component is provided inside the sedimentation tank (3).

2. The PVD wastewater pretreatment device according to claim 1, characterized in that: The replacement component includes a mounting bracket (15) which is fixedly connected to the top of the sedimentation tank (3). A winch (16) is fixedly connected to the top of the mounting bracket (15). A steel wire rope is wound around the outer surface of the winch (16). A filter box (17) is fixedly connected to the end of the steel wire rope away from the winch.

3. The PVD wastewater pretreatment device according to claim 2, characterized in that: The outer surface of the filter box (17) is fixedly connected with two protective plates (18), and the interior of the filter box (17) is fixedly connected with six partition plates (19), which are symmetrically distributed on the left and right inner walls of the filter box (17) in groups of three. The inner wall of the filter box (17) is fixedly connected with a second mounting plate (20), and the outer surface of the second mounting plate (20) is fitted with a filter screen plate (21).

4. The PVD wastewater pretreatment device according to claim 1, characterized in that: A blower body (9) is fixedly connected to the left side of the temporary storage pool (1). A cover plate (10) is fixedly connected to the output end of the blower body (9). A connecting pipe (11) is fixedly connected to the bottom of the cover plate (10). The connecting pipe (11) allows the bottom to be movably connected to the interior of the rotating seat (7).

5. The PVD wastewater pretreatment device according to claim 1, characterized in that: The reaction tank (2) is equipped with a stirrer, a pH meter, an ORP meter, a sulfuric acid dosing device, a sodium bisulfite or sodium thiosulfate dosing device, and a sodium hydroxide dosing device.

6. The PVD wastewater pretreatment device according to claim 1, characterized in that: The air outlet plate (13) has air outlet holes on both the front and back sides, and the number of fan blades (14) is not less than eight.

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