Advanced filtration treatment device for germanium smelting acid wastewater

Abstract

The invention relates to the technical field of germanium smelting acid wastewater, in particular to a germanium smelting acid wastewater deep filtration treatment device which comprises a machine body, a first cavity and a second cavity are formed in the machine body, and each of the first cavity and the second cavity is provided with four sets of vertical stirring plates and a transverse stirring blade which are used for mixing wastewater and chemical reagents. Each of the first chamber and the second chamber is provided with four pressing plates for pressing sludge, and each pressing plate is provided with a reverse osmosis membrane for discharging redundant water in the sludge. When the vertical stirring plate is switched to be connected with the pressing plate, the stirring range of the vertical stirring plate is enlarged, when the vertical stirring plate is switched to be separated from the pressing plate, the pressing plate conducts sludge pressing operation, sludge and waste water do not need to be carried, automatic and rapid switching from the reaction procedure to the pressing procedure is achieved, and the efficiency is improved. The treatment capacity and the automation degree are greatly improved, and meanwhile, harmful substances are prevented from leaking or volatilizing due to the fact that the sludge and the wastewater are carried.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of germanium smelting acid wastewater, and particularly to a germanium smelting acid wastewater deep filtration treatment device. BACKGROUND

[0002] The scattered metal germanium is a supporting material for high-tech industry, which is widely used in electronic industry, aerospace, and military industry.

[0003] When the germanium smelting is carried out, a large amount of acid wastewater is generated in the leaching process and the rinsing process, wherein the wastewater generated in the leaching process contains high-concentration arsenic. Since arsenic is extremely toxic, the arsenic-containing wastewater needs to be separately neutralized and sludge precipitated to reduce the harm of arsenic. However, the existing reaction tank equipment and sludge pressing equipment are independently arranged, so that the slurry mixture after reaction needs to be transferred from the reaction tank to the pressing equipment, which is easy to cause harmful substances to drip or volatilize, thereby causing secondary pollution. SUMMARY

[0004] The present application is proposed to solve the problem in the prior art that the reaction tank equipment and the sludge pressing equipment are independently arranged, the slurry mixture after reaction needs to be transferred from the reaction tank to the pressing equipment, and harmful substances are easy to drip or volatilize.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The germanium smelting acid wastewater deep filtration treatment device comprises a machine body, a first chamber for storing arsenic-containing wastewater and a second chamber for storing non-arsenic-containing wastewater are arranged in the machine body, four sedimentation tanks for precipitating sludge are arranged in the first chamber and the second chamber, four groups of vertical stirring plates and one horizontal stirring blade for mixing wastewater and chemical reagents are arranged in the first chamber and the second chamber, four pressing plates for pressing sludge are arranged in the first chamber and the second chamber, a reverse osmosis membrane for discharging excess water in the sludge is arranged on the pressing plate, a driving mechanism for driving the vertical stirring plate and the horizontal stirring blade is arranged in the machine body, and a switching mechanism for connecting or separating the vertical stirring plate and the pressing plate to increase the stirring range or perform the sludge pressing operation is arranged in the machine body.

[0007] Preferably, the bottom end of the first chamber and the bottom end of the second chamber are composed of four sedimentation tanks through one middle end guide block and four side end guide blocks, the middle end guide block is composed of a regular tetrahedron and a cuboid from top to bottom, the side end guide block is composed of a right triangular prism and a cuboid from top to bottom, and one group of vertical stirring plates and a reverse osmosis membrane are movably abutted at the upper and lower ends.

[0008] Preferably, the bottom end of the sedimentation tank is slidingly provided with a discharge plate for discharging sludge, and the lower end of the machine body is rotatably provided with a locking rotating rod which is movably abutted with the lower end of the discharge plate.

[0009] Preferably, a first conveying pipe for conveying the waste water after arsenic removal is arranged between the first chamber and the second chamber, and a second conveying pipe for conveying the waste water in the second chamber is arranged on the side of the second chamber away from the first conveying pipe.

[0010] Preferably, the driving mechanism comprises two driving motors which are respectively fixedly arranged above the first chamber and the second chamber through two mounting supports, the lower end of one of the mounting supports is rotatably provided with a rotating shaft which is fixedly connected with the output end of the driving motor, the lower end of the rotating shaft is rotatably connected with a mounting chamber, the one end of the rotating shaft in the mounting chamber is key-connected with a first bevel gear, and four rotating shafts are arranged through the mounting chamber, and the one end of one of the rotating shafts in the mounting chamber is key-connected with a second bevel gear which is meshingly connected with the first bevel gear.

[0011] Preferably, one of the rotating shafts is provided with a thread above the machine body, one end of the rotating shaft below the mounting chamber is fixedly connected with one horizontal stirring blade, and one end of the rotating shaft outside the mounting chamber is fixedly connected with a group of vertical stirring plates through two arc plates.

[0012] Preferably, the switching mechanism comprises four bidirectional telescopic rods which are slidingly arranged above the first chamber and the second chamber, the two telescopic ends of one of the bidirectional telescopic rods are fixedly connected with a connecting rod and an assembling nut, the lower end of the connecting rod is movably connected with one pressing plate and a group of vertical stirring plates, the four assembling nuts which are abutted with each other are arranged on the thread of one rotating shaft.

[0013] Preferably, four vertical sliding rails are fixedly arranged on the upper ends of the first chamber and the second chamber, one of the bidirectional telescopic rods is slidingly arranged on one of the vertical sliding rails through a sliding support, four guide sliding grooves are arranged in the first chamber and the second chamber, and one of the connecting rods is slidingly arranged in one of the guide sliding grooves through a sliding rod, and the guide sliding groove is composed of a horizontal groove and a vertical groove.

[0014] Preferably, one of the pressing plates and a group of vertical stirring plates are provided with a moving groove, the two arc plates are rotatably connected with a ring member which is fixedly connected with the mounting chamber, the upper and lower ends of one of the ring members are fixedly connected with limit sliding rails, and the lower end of one of the connecting rods is movably sleeved in the moving groove and the limit sliding rails.

[0015] Preferably, one side end of the moving groove of the pressing plate is fixedly provided with a first magnetic block, both sides of the lower end of the connecting rod are fixedly provided with a second magnetic block, and one side end of the limiting slide rail is fixedly provided with a third magnetic block, the first magnetic block, the second magnetic block and the third magnetic block are all wrapped by a corrosion-resistant shell, and the second magnetic block is attracted to the first magnetic block and the third magnetic block.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、The present application increases the stirring range of the vertical stirring plate when switching the vertical stirring plate and the pressing plate to connect, improves the stirring effect, and allows the pressing plate to perform the sludge pressing operation when switching the vertical stirring plate and the pressing plate to separate, thereby eliminating the need to transport sludge and wastewater, realizing automatic and rapid switching from the reaction process to the pressing process, reducing manual intervention, achieving a continuous production process, greatly improving the treatment capacity and the degree of automation, and avoiding the dripping or volatilization of harmful substances due to the transportation of sludge and wastewater.

[0018] 2、The present application uses the vertical stirring of four groups of vertical stirring plates and the horizontal stirring of one horizontal stirring blade to stir the wastewater and the chemical reagent in multiple directions, accelerates the reaction rate between the two, and makes the precipitated particles generated by the neutralization reaction quickly coagulate into large alunite flowers, thereby improving the precipitation speed.

[0019] 3、The present application connects the vertical stirring plate and the pressing plate when one group of vertical stirring plates and one reverse osmosis membrane are in contact, thereby increasing the stirring range and closing the reverse osmosis membrane at the same time, avoiding the clogging of the reverse osmosis membrane by high-concentration suspended solids during stirring, and shortening the service life of the reverse osmosis membrane, and when one group of vertical stirring plates and one reverse osmosis membrane are separated, the vertical stirring plate and the pressing plate are separated to allow the pressing plate to perform the sludge pressing operation, so that the sludge becomes a drier mud cake, and at the same time, the reverse osmosis membrane is opened to allow the water body squeezed out of the sludge to pass through the reverse osmosis membrane for filtration and discharge, thereby reducing the volume and water content of the sludge and improving the water quality of the squeezed water body. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structure diagram of a germanium smelting acid wastewater deep filtration treatment device is provided for the present application;

[0021] Figure 2 A front view diagram of a germanium smelting acid wastewater deep filtration treatment device is provided for the present application; Figure One

[0022] Figure 3 An enlarged diagram of part A in the present application is provided; Figure 2

[0023] Figure 4 ​​A vertical section view of a germanium smelting acid wastewater deep filtration treatment device according to the present application Figure Two ;

[0024] Figure 5 An enlarged view of part B in the present application Figure 4 ;

[0025] Figure 6 A bottom view of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0026] Figure 7 A top view of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0027] Figure 8 A structure diagram of a rotating shaft of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0028] Figure 9 A vertical section view of an installation chamber of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0029] Figure 10 A structure diagram of a connecting rod of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0030] Figure 11 An enlarged view of part C in the present application Figure 10 ;

[0031] Figure 12 A structure diagram of a vertical stirring plate of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0032] Figure 13 A structure diagram of a limiting slide rail of a germanium smelting acid wastewater deep filtration treatment device according to the present application

[0033] In the figure: 1, machine body; 2, first chamber; 3, second chamber; 4, middle end guide block; 5, side end guide block; 6, sedimentation tank; 7, vertical stirring plate; 8, horizontal stirring blade; 9, pressing plate; 10, reverse osmosis membrane; 11, first conveying pipe; 12, second conveying pipe; 13, discharging plate; 14, locking rotating rod; 15, driving motor; 16, rotating shaft; 17, first bevel gear; 18, rotating shaft; 19, second bevel gear; 20, circular arc plate; 21, installation chamber; 22, vertical slide rail; 23, sliding support; 24, bidirectional telescopic rod; 25, guide sliding groove; 26, connecting rod; 27, sliding rod; 28, assembled nut; 29, moving groove; 30, first magnetic block; 31, second magnetic block; 32, ring-shaped part; 33, limiting slide rail; 34, third magnetic block. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0035] With reference to Figures 1-13 A kind of germanium smelting acidic wastewater advanced filtration processing device, including body 1, first chamber 2 for storing arsenic-containing wastewater and second chamber 3 for non-arsenic-containing wastewater are set in body 1, and arsenic-containing wastewater is produced in leaching process, i.e. through strong acid leaching soluble germanium tetrachloride, and non-arsenic-containing wastewater is produced when flushing the equipment contacted with strong acid, first chamber 2 and second chamber 3 are all provided with four sedimentation tanks 6 for precipitating sludge, to concentrate the sludge in sedimentation tank 6 for subsequent processing, first chamber 2 and second chamber 3 are all provided with four groups of vertical stirring plates 7 for mixing wastewater and chemical reagent and a horizontal stirring blade 8, and through the vertical stirring of vertical stirring plate 7 and the horizontal stirring of horizontal stirring blade 8, the wastewater and chemical reagent are stirred in multiple directions, the reaction rate between the two is accelerated, the precipitated particles generated by neutralization reaction quickly coagulate into large alunite flowers, and then sink downward to sedimentation tank 6, and the chemical reagent includes reducing agent, neutralizing agent and flocculating agent, since the chemical reagent is a mature technical means in the field to which the present application belongs, it is not described in detail, and first chamber 2 and second chamber 3 are all provided with four pressing plates 9 for pressing sludge, to destroy the floc structure of the sludge and squeeze out excess water, thereby significantly reducing the volume and moisture content of the sludge, so that it becomes a drier cake, and the pressing plate 9 is installed with a reverse osmosis membrane 10 for discharging excess water in the sludge, so that the squeezed water is filtered through the reverse osmosis membrane 10 and then flows out of the sedimentation tank 6, a driving mechanism is provided in the body 1 for driving the vertical stirring plate 7 and the horizontal stirring blade 8, to accelerate the reaction rate between the wastewater and the chemical reagent, so that the precipitated particles generated by neutralization reaction quickly coagulate into large alunite flowers, since the alunite flowers are easy to be broken by external force, four groups of vertical stirring plates 7 and a horizontal stirring blade 8 are driven to rotate at low speed for stirring, to improve the integrity of the alunite flowers, a switching mechanism is provided in the body 1 for connecting or separating the vertical stirring plate 7 and the pressing plate 9, to increase the stirring range or perform the sludge pressing operation, to realize automatic and rapid switching from the reaction process to the pressing process, reduce manual intervention, to achieve continuous production process, and greatly improve the processing capacity and automation degree.

[0036] Preferably, as shown in the accompanying Figure 4 and the accompanying Figure 6As shown, the bottom end of the first chamber 2 and the bottom end of the second chamber 3 are both composed of four sedimentation tanks 6 through a middle end guide block 4 and four side end guide blocks 5, the middle end guide block 4 is composed of a regular tetrahedron and a cuboid from top to bottom, the side end guide block 5 is composed of a straight tri-prism and a cuboid from top to bottom, and the inclined surface of the regular tetrahedron of the middle end guide block 4 is inclined towards the sedimentation tank 6, the inclined surface of the straight tri-prism of the side end guide block 5 is inclined towards the sedimentation tank 6, and the downwardly precipitated alum flowers fall into the sedimentation tank 6 to form sludge under the guidance of the inclined surfaces of the middle end guide block 4 and the side end guide block 5, and when a set of vertical stirring plates 7 are in contact with the upper and lower ends of a reverse osmosis membrane 10, i.e. the vertical stirring plates 7 are connected with the pressing plate 9, the stirring range is increased and the reverse osmosis membrane 10 is closed at the same time, so as to avoid the reverse osmosis membrane 10 from being blocked by high-concentration suspended solids during stirring, and shorten the service life of the reverse osmosis membrane 10; when a set of vertical stirring plates 7 are separated from a reverse osmosis membrane 10, i.e. the vertical stirring plates 7 are separated from the pressing plate 9, so as to facilitate the pressing plate 9 to perform the pressing sludge operation, and at the same time, the reverse osmosis membrane 10 is opened to allow the water body squeezed out of the sludge to pass through the reverse osmosis membrane 10 for filtration and discharge, so as to reduce the volume and water content of the sludge, and improve the water quality of the squeezed water body.

[0037] Preferably, a discharge plate 13 for discharging sludge is slidably installed at the bottom end of the sedimentation tank 6, and a corrosion-resistant sealing ring is arranged between the discharge plate 13 and the sedimentation tank 6 to improve the sealing performance, and a locking rotating rod 14 in contact with the lower end of the discharge plate 13 is rotatably installed at the lower end of the machine body 1, and the discharge plate 13 is removed by rotating the locking rotating rod 14, so as to take out the pressed mud cake, and then mix the mud cake with cement, lime, sulfide and other solidifying agents to wrap the heavy metals in the solidified body and reduce the leaching toxicity of the heavy metals; a first conveying pipe 11 for conveying the arsenic-removed wastewater is installed between the first chamber 2 and the second chamber 3, a second conveying pipe 12 for conveying the wastewater in the second chamber 3 is installed on the side of the second chamber 3 away from the first conveying pipe 11, and corrosion-resistant water pumps are arranged at the first conveying pipe 11 and the second conveying pipe 12, the arsenic-removed wastewater is conveyed to the second chamber 3 through the first conveying pipe 11, the wastewater is discharged from the machine body 1 through the second conveying pipe 12, and activated carbon or special heavy metal adsorbent is used outside the machine body 1 to further remove trace heavy metals in the remaining wastewater, and then a nanofiltration membrane is used to greatly reduce ions and impurities in the wastewater, so as to improve the water quality of the water body and achieve "zero discharge" of the wastewater.

[0038] Preferably, the driving mechanism comprises two driving motors 15 fixedly installed above the first chamber 2 and the second chamber 3 through two mounting supports, the lower end of one mounting support is rotatably installed with a rotating shaft 16 fixedly connected with the output end of the driving motor 15, the lower end of the rotating shaft 16 is rotatably connected with a mounting chamber 21, the first bevel gear 17 is keyed connected to one end of the rotating shaft 16 located in the mounting chamber 21, four rotating shafts 18 are installed through one mounting chamber 21, the second bevel gear 19 is keyed connected to one end of one rotating shaft 18 located in the mounting chamber 21 and meshed connected with the first bevel gear 17, one rotating shaft 16 is provided with a thread above the machine body 1, one rotating shaft 16 is fixedly connected with one horizontal stirring blade 8 at one end below the mounting chamber 21, one rotating shaft 18 is fixedly connected with one set of vertical stirring plates 7 at one end outside the mounting chamber 21 through two arc plates 20, and then the driving motor 15 is started to drive the rotating shaft 16 to rotate the first bevel gear 17, and the four sets of vertical stirring plates 7 and the horizontal stirring blade 8 are driven to rotate by the meshing transmission of one first bevel gear 17 and four second bevel gears 19, so as to stir the wastewater and the chemical reagent in multiple directions to accelerate the reaction rate between them.

[0039] Preferably, the switching mechanism comprises four bidirectional telescopic rods 24 slidably installed above the first chamber 2 and the second chamber 3, the bidirectional telescopic rod 24 is an electric bidirectional telescopic rod, the two telescopic ends of one bidirectional telescopic rod 24 are fixedly connected with a connecting rod 26 and an assembly nut 28, respectively, the lower end of one connecting rod 26 is movably connected with one pressing plate 9 and one set of vertical stirring plates 7, four closed assembly nuts 28 are assembled, and the four closed assembly nuts 28 are installed at the threaded portion of one rotating shaft 16.

[0040] Preferably, the upper end of the first chamber 2 and the second chamber 3 is fixedly installed with four vertical sliding rails 22, one bidirectional telescopic rod 24 is slidably installed on one vertical sliding rail 22 through one sliding support 23, and the bidirectional telescopic rod 24 moves vertically and linearly under the guidance of the vertical sliding rail 22, four guide sliding grooves 25 are formed in the first chamber 2 and the second chamber 3, one connecting rod 26 is slidably installed in one guide sliding groove 25 through one sliding rod 27, the guide sliding groove 25 is composed of a horizontal groove and a vertical groove, and the connecting rod 26 moves horizontally and vertically and linearly in sequence under the guidance of the guide sliding groove 25.

[0041] Preferably, one pressing plate 9 and a set of vertical stirring plates 7 are provided with moving grooves 29, two circular arc plates 20 are rotationally connected with annular members 32 fixedly connected with mounting chambers 21, that is, the two rotating circular arc plates 20 rotate in the annular members 32, while the annular members 32 are in a stationary state together with the mounting chambers 21, and one annular member 32 is fixedly connected with limit sliding rails 33 at the upper and lower ends, and one connecting rod 26 is movably sleeved in the moving grooves 29 and the limit sliding rails 33.

[0042] Preferably, the side end of the moving groove 29 of one pressing plate 9 is fixedly provided with a first magnetic block 30, the lower end of one connecting rod 26 is fixedly provided with a second magnetic block 31 on both sides, and the side end of one limit sliding rail 33 is fixedly provided with a third magnetic block 34, and the first magnetic block 30, the second magnetic block 31 and the third magnetic block 34 are all wrapped by corrosion-resistant shells to avoid corrosion of the magnetic blocks by strong acid, and the second magnetic block 31 is repulsively attracted to the first magnetic block 30 and the third magnetic block 34, respectively.

[0043] It is particularly pointed out that when a set of vertical stirring plates 7 are connected with one pressing plate 9, the reverse osmosis membrane 10 of one pressing plate 9 is clamped between a set of vertical stirring plates 7 to limit one pressing plate 9 to a set of vertical stirring plates 7, and repulsively attracted magnetic blocks can be arranged at the contact position of the vertical stirring plate 7 and the pressing plate 9 to enhance the limiting force of the pressing plate 9, at this time the connecting rod 26 is located in the limit sliding rail 33 of the annular member 32, and since the second magnetic block 31 and the third magnetic block 34 are repulsively attracted, the connecting rod 26 is limited to the limit sliding rail 33;

[0044] When it is necessary to separate the vertical stirring plate 7 and the pressing plate 9, a rotation angle sensor arranged in the mounting chamber 21 and detecting the rotation angle of the rotating shaft 18 is provided, when the rotating shaft 18 and the vertical stirring plate 7 are located at 0°, that is, the moving groove 29 of the vertical stirring plate 7 and the limit sliding rail 33 are parallel and aligned, the two telescopic ends of the bidirectional telescopic rod 24 are extended, the connecting rod 26 is disconnected from the second magnetic block 31 and the third magnetic block 34 under the driving of one telescopic end of the bidirectional telescopic rod 24, the connecting rod 26 moves to the moving groove 29 of the pressing plate 9 and is connected through the repulsive force between the first magnetic block 30 and the second magnetic block 31, at the same time, one telescopic end of the bidirectional telescopic rod 24 continues to drive the pressing plate 9 and the vertical stirring plate 7 to separate, until the connecting rod 26 and the pressing plate 9 move above the sedimentation tank 6, and the other telescopic end of the bidirectional telescopic rod 24 drives the assembly nuts 28 to move towards the threads of the rotating shaft 16, so that the four assembly nuts 28 are closed and abutted, and the rotating rotating shaft 16 and the four assembly nuts 28 drive the bidirectional telescopic rod 24 to move downward, so that the pressing plate 9 is pressed downward, and the rotating rotating shaft 16 drives the vertical stirring plate 7 and the horizontal stirring blade 8 to stir the remaining wastewater, so as to avoid the stratification of the remaining wastewater due to the static state, and to make the concentration of the remaining wastewater from top to bottom not uniform.

[0045] When the vertical stirring plate 7 and the pressing plate 9 need to be connected, the driving rotating shaft 16 is driven to rotate reversely, so that the pressing plate 9 and the vertical stirring plate 7 are located at the same height, then the two telescopic ends of the bidirectional telescopic rod 24 are driven to retract, the connecting rod 26 and the pressing plate 9 are moved to the vertical stirring plate 7 under the driving of one telescopic end of the bidirectional telescopic rod 24, until the reverse osmosis membrane 10 of one pressing plate 9 is clamped between a group of vertical stirring plates 7, the connecting rod 26 is moved to the limiting slide rail 33 of the annular part 32, and the connecting rod 26 is limited to the limiting slide rail 33 through the repulsion between the second magnetic block 31 and the third magnetic block 34, and the other telescopic end of the bidirectional telescopic rod 24 drives the assembling nut 28 to move away from the rotating shaft 16, so that the four assembling nuts 28 are separated.

[0046] The function principle of the present application can be described as follows:

[0047] First, the arsenic-containing wastewater and the non-arsenic-containing wastewater are poured into the first chamber 2 and the second chamber 3 respectively, and the strong toxicity and high solubility pentavalent arsenic is reduced to trivalent arsenic with lower toxicity and easier precipitation by pouring the reducing agent into the first chamber 2, then the neutralizing agent, flocculating agent and other chemical reagents are poured into the first chamber 2 and the second chamber 3, so as to remove the acidity of the wastewater, at this time, the driving motor 15 is started, and the driving motor 15 drives the first bevel gear 17 to rotate through the rotating shaft 16, since one first bevel gear 17 is in meshing transmission with four second bevel gears 19, the second bevel gear 19 drives the pressing plate 9 to rotate vertically through the rotating shaft 18 and the vertical stirring plate 7, and the rotating shaft 16 drives the horizontal stirring blade 8 to rotate horizontally, so as to stir the wastewater and the chemical reagents in multiple directions, so as to accelerate the reaction rate between them, so that the precipitated particles generated by the neutralization reaction quickly coagulate into large alunite flowers, and then quickly settle downward, and under the guidance of the inclined surfaces of the middle guide block 4 and the side guide block 5, the alunite flowers fall into the sedimentation tank 6 to form sludge;

[0048] After starting the two-way telescopic rod 24, the two telescopic ends of the two-way telescopic rod 24 are extended, so that the four assembled nuts 28 are closed and abut the threads of the rotating shaft 16, and the connecting rod 26 moves from the horizontal slot of the guide sliding groove 25 to the vertical slot, and the connecting rod 26 drives the pressing plate 9 to move above the sedimentation tank 6, so that the pressing plate 9 is separated from the vertical stirring plate 7, to open the reverse osmosis membrane 10, and start the driving motor 15, so that the rotating shaft 16 drives the two-way telescopic rod 24 to move downward in the vertical sliding rail 22 through the threads and the four assembled nuts 28, and the connecting rod 26 moves downward in the vertical slot of the guide sliding groove 25, so that the pressing plate 9 moves downward in the sedimentation tank 6 to extrude the excess water in the sludge, and the water is filtered by the reverse osmosis membrane 10 to remove impurities, and flows into the first chamber 2 and the second chamber 3, and the rotating rotating shaft 16 drives the vertical stirring plate 7 and the horizontal stirring blade 8 to stir the remaining wastewater, to avoid the remaining wastewater from being stratified due to being in a stationary state, and to cause the remaining wastewater to have different concentrations from top to bottom, and then the remaining wastewater is discharged through the first delivery pipe 11 and the second delivery pipe 12, and activated carbon or special heavy metal adsorbent is used outside the machine body 1 to further remove trace heavy metals in the remaining wastewater, and a nanofiltration membrane is used to greatly reduce ions and impurities in the wastewater, thereby improving the water quality of the water body, to achieve "zero discharge" of wastewater.

[0049] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes within the technical range disclosed by the present application according to the technical solution and inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A germanium smelting acidic wastewater advanced filtration treatment device, comprising a machine body (1), characterized in that, The machine body (1) is provided with a first chamber (2) for storing arsenic-containing wastewater and a second chamber (3) for storing non-arsenic-containing wastewater, each of the first chamber (2) and the second chamber (3) is provided with four sedimentation tanks (6) for depositing sludge, each of the first chamber (2) and the second chamber (3) is provided with four vertical stirring plates (7) and a horizontal stirring blade (8) for mixing wastewater and chemical reagents, each of the first chamber (2) and the second chamber (3) is provided with four pressing plates (9) for pressing sludge, the pressing plate (9) is provided with a reverse osmosis membrane (10) for discharging excess water in the sludge, the machine body (1) is provided with a driving mechanism for driving the vertical stirring plate (7) and the horizontal stirring blade (8), and the machine body (1) is provided with a switching mechanism for connecting or separating the vertical stirring plate (7) and the pressing plate (9) to increase the stirring range or to perform the sludge pressing operation.

2. The device for deep filtration of germanium smelting acidic wastewater according to claim 1, characterized in that, The bottom end of the first chamber (2) and the bottom end of the second chamber (3) are composed of four sedimentation tanks (6) through a middle end guide block (4) and four side end guide blocks (5), the middle end guide block (4) is composed of a regular tetrahedron and a cuboid from top to bottom, the side end guide block (5) is composed of a straight tri-prism and a cuboid from top to bottom, and one set of vertical stirring plates (7) and a reverse osmosis membrane (10) are movably arranged at the upper and lower ends.

3. The device for deep filtration of germanium smelting acidic wastewater according to claim 2, characterized in that, The bottom end of the sedimentation tank (6) is slidably provided with a discharge plate (13) for discharging sludge, and the lower end of the machine body (1) is rotatably provided with a locking rotating rod (14) movably arranged at the lower end of the discharge plate (13).

4. The device for deep filtration of germanium smelting acidic wastewater according to claim 2, characterized in that, A first conveying pipe (11) for conveying wastewater after arsenic removal is arranged between the first chamber (2) and the second chamber (3), and a second conveying pipe (12) for conveying wastewater in the second chamber (3) is arranged on the side away from the first conveying pipe (11) of the second chamber (3).

5. The device for deep filtration of germanium smelting acidic wastewater according to claim 2, characterized in that, The driving mechanism comprises two driving motors (15) fixedly arranged above the first chamber (2) and the second chamber (3) through two mounting supports, a rotating shaft (16) fixedly connected with the output end of the driving motor (15) is rotatably arranged at the lower end of one mounting support, a mounting chamber (21) is rotatably connected to the lower end of the rotating shaft (16), a first bevel gear (17) is keyed connected to one end of the rotating shaft (16) in the mounting chamber (21), four rotating shafts (18) are arranged through the mounting chamber (21), and a second bevel gear (19) is meshingly connected with the first bevel gear (17) and keyed connected to one end of one rotating shaft (18) in the mounting chamber (21).

6. The device for advanced filtration of germanium smelting acidic wastewater according to claim 5, characterized in that, One rotating shaft (16) is provided with a thread at the upper end, one rotating shaft (16) is fixedly connected with a horizontal stirring blade (8) at one end below the mounting chamber (21), and one rotating shaft (18) is fixedly connected with one set of vertical stirring plates (7) through two arc plates (20) at one end outside the mounting chamber (21).

7. The device for deep filtration of germanium smelting acidic wastewater according to claim 6, characterized in that, The switching mechanism includes four bidirectional telescopic rods (24) which are slidingly installed above the first chamber (2) and the second chamber (3), two telescopic ends of one of the bidirectional telescopic rods (24) are fixedly connected with a connecting rod (26) and an assembling nut (28), the lower end of one of the connecting rods (26) is movably connected with one pressing plate (9) and one set of vertical stirring plates (7), four closed assembling nuts (28) are a set, and the four closed assembling nuts (28) are installed at the threaded part of a rotating shaft (16).

8. The device for deep filtration of germanium smelting acidic wastewater according to claim 7, characterized in that, The upper ends of the first chamber (2) and the second chamber (3) are fixedly installed with four vertical sliding rails (22), one of the bidirectional telescopic rods (24) is slidingly installed on one of the vertical sliding rails (22) through a sliding support (23), four guide sliding grooves (25) are formed in the first chamber (2) and the second chamber (3), one of the connecting rods (26) is slidingly installed in one of the guide sliding grooves (25) through a sliding rod (27), and the guide sliding groove (25) is composed of a horizontal groove and a vertical groove.

9. The device for deep filtration of germanium smelting acidic wastewater according to claim 8, characterized in that, One of the pressing plates (9) and one set of the vertical stirring plates (7) are provided with a moving groove (29), the two arc plates (20) are rotatably connected with a ring-shaped piece (32) which is fixedly connected with the installation chamber (21), the upper and lower ends of one of the ring-shaped pieces (32) are fixedly connected with a limiting sliding rail (33), and the lower end of one of the connecting rods (26) is movably sleeved in the moving groove (29) and the limiting sliding rail (33).

10. The device for deep filtration of germanium smelting acidic wastewater according to claim 9, characterized in that, The side end of the moving groove (29) of one of the pressing plates (9) is fixedly installed with a first magnetic block (30), the lower end of one of the connecting rods (26) is fixedly installed with a second magnetic block (31) on both sides, the side end of one of the limiting sliding rails (33) is fixedly installed with a third magnetic block (34), the first magnetic block (30), the second magnetic block (31) and the third magnetic block (34) are all wrapped with a corrosion-resistant shell, and the second magnetic block (31) is repelled to the first magnetic block (30) and the third magnetic block (34).

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