A wastewater treatment equipment for ammonium paratungstate production

Abstract

The present invention relates to the field of wastewater treatment, and in particular to a wastewater treatment device for ammonium paratungstate production, including a wastewater pool and a sealing plate, etc.; a drain port is provided at the rear side of the wastewater pool; and a sealing plate is provided at the upper side of the wastewater pool. The present invention realizes that by making the filter membrane rise from the wastewater, the filter membrane will move equivalently to the wastewater, and at this time, the water pressure forces the wastewater to quickly pass through the filter membrane, so that the wastewater is quickly filtered through the filter membrane, and the metal ions and water molecules in the wastewater quickly pass through the filter membrane, which is beneficial to ensure the treatment efficiency of the wastewater, and in the process of the filter membrane rising, the ammonium paratungstate crystals are fished out by the filter membrane. In this process, when the filter membrane rises in the wastewater and fishes the ammonium paratungstate crystals out of the water surface, the wastewater will impact the ammonium paratungstate crystals intercepted by the filter membrane, thereby effectively reducing the problem that the ammonium tungstate crystals are easily blocked by the filter membrane after being intercepted by the filter membrane.

Description

Technical Field

[0001] The invention relates to the field of wastewater treatment, in particular to wastewater treatment equipment for ammonium paratungstate production. Background Art

[0002] After the preparation of ammonium paratungstate, the wastewater produced contains metal ions carried by various minerals, as well as ammonium paratungstate crystals precipitated when the concentration of ammonium paratungstate in the wastewater is too high. The existing wastewater treatment method adds chemical agents to precipitate the metal ions so that the treated wastewater meets the discharge requirements. However, as ammonium paratungstate crystals are recyclable resources, their sizes are different and they are scattered in various areas of the wastewater. When metal ions precipitate, the precipitated metal ions will wrap the ammonium paratungstate crystals, resulting in the removal of the recyclable ammonium paratungstate crystals together with the metal precipitates, reducing the use of recyclable resources in the wastewater. , the ammonium paratungstate crystals in the wastewater are intercepted by the filter membrane, and water and other ions pass through the filter membrane, thereby achieving the effect of collecting the ammonium paratungstate crystals. In the wastewater treatment process, the plate filter membrane is more suitable for use in the wastewater pool than other filter membranes due to its large filtration area. During use, the wastewater is first filtered through the plate filter membrane to intercept the ammonium paratungstate crystals, and then the filtered wastewater passes through the filter membrane into the wastewater pool, and then chemical agents are added to treat the wastewater. Due to the large filtration area of ​​the plate filter membrane, the overall susceptibility to pressure and deformation occurs, resulting in the plate filter membrane being prone to deformation and cracking after long-term use, and thus unable to intercept the ammonium paratungstate crystals.

[0003] At the same time, when the ammonium paratungstate crystals are intercepted on the upper side of the plate filter membrane, since the ammonium paratungstate crystals still need to be rinsed with clean water to remove the wastewater remaining on the surface, and the wastewater usually contains harmful substances, the existing plate filter membrane directly discharges the wastewater into the wastewater pool for chemical precipitation after filtration. When the ammonium paratungstate crystals need to be rinsed with clean water, the clean water after rinsing will directly pass through the plate filter membrane and flow into the wastewater pool. Since chemical agents are added to adjust the pH value of the wastewater to precipitate metal ions, the pH value will be diluted when the clean water enters the wastewater, making it difficult for the metal ions to form precipitates, thereby causing the wastewater to fail to meet the discharge standards. Summary of the invention

[0004] In order to overcome the shortcomings of the existing plate filter membrane that is easily deformed by pressure, resulting in the filter membrane being easily damaged after long-term use, and the plate filter membrane being unable to intercept the clean water from falling into the wastewater and affecting the precipitation of metal ions in the wastewater when the ammonium paratungstate crystals need to be rinsed with clean water, the present invention provides a wastewater treatment device for ammonium paratungstate production.

[0005] The technical scheme is: a wastewater treatment equipment for ammonium paratungstate production, comprising a wastewater pool, a liquid inlet pipe, a sealing plate, a first frame, a filter membrane and a liquid adding pipe; a drain port is provided at the rear side of the wastewater pool; a sealing plate is provided at the upper side of the wastewater pool; a plurality of liquid inlet pipes are installed on the sealing plate; the plurality of liquid inlet pipes penetrate the sealing plate; a first frame is connected in the wastewater pool; a filter membrane is provided on the first frame; a liquid adding pipe is connected to the lower front side of the wastewater pool; the liquid adding pipe is connected to an external pharmaceutical delivery device; and further comprising an electromagnetic valve, a protective rod, a fishing assembly and a flushing assembly; an electromagnetic valve is provided on the sealing plate; a plurality of protective rods for reducing the deformation of the filter membrane when it is compressed are installed on the first frame; a fishing assembly is slidably connected in the wastewater pool; the first frame and the filter membrane are driven to move up and down by the fishing assembly; and a flushing assembly for washing ammonium paratungstate crystals is provided on the wastewater pool.

[0006] Furthermore, the flushing component includes a water inlet pipe, a collection net and a water collection box; the front side of the wastewater tank is connected to a plurality of water inlet pipes for cleaning ammonium paratungstate crystals; each water inlet pipe is connected to an external water pumping device; a collection net is fixedly connected to the rear side of the wastewater tank; the collection net is located below the drain outlet; and a water collection box is fixedly connected to the lower rear side of the wastewater tank.

[0007] Furthermore, the fishing assembly includes a first electric slider, a second frame and a slide rail; a plurality of slide rails are fixedly connected inside the wastewater pool; a first electric slider is slidably connected to each slide rail; all the first electric sliders are fixedly connected to the second frame; and the second frame is connected to the first frame.

[0008] Furthermore, the protective component includes a second electric slider, a third frame, a limit plate and a one-way membrane; each slide rail is slidably connected to a second electric slider; each second electric slider is located below an adjacent first electric slider; all the second electric sliders are fixedly connected to the third frame; a number of limit plates are rotatably connected to the third frame to prevent the filter membrane from being compressed and damaged; a micro motor is arranged between each limit plate and the third frame; and a one-way membrane is rotatably connected to the middle of each limit plate.

[0009] Furthermore, it also includes a scraper bar; the scraper bar is fixedly connected to the lower side of the third frame to prevent sediment from adhering to the inner wall of the wastewater tank.

[0010] Furthermore, it also includes a limit rod; the lower side of each limit plate is set to be hollow, and a limit rod is fixedly connected to the lower side of each limit plate; the limit rod is made of alloy material.

[0011] Furthermore, it also includes a rotating plate; the rear side of the wastewater pool is connected to a rotating plate that is convenient for cleaning the wastewater on the surface of the ammonium paratungstate crystals through an external micro-motor; the rotating plate is located in the drain outlet.

[0012] Furthermore, a plurality of limit plates are combined to form a wave shape.

[0013] Furthermore, it also includes a guide plate and an elastic member; the second frame is rotatably connected to a plurality of guide plates through a torsion spring to make the ammonium paratungstate crystals evenly distributed on the filter membrane; an elastic member is fixedly connected to the left and right sides of the second frame; and the telescopic end of the elastic member is fixedly connected to the first frame.

[0014] Furthermore, when the second frame body is attached to the first frame body, all the guide plates are combined into a flat plate.

[0015] The beneficial effects are as follows: the present invention realizes that by making the filter membrane rise from the wastewater, the filter membrane will be equivalent to the movement of the wastewater, at this time, the water pressure forces the wastewater to quickly pass through the filter membrane, so that the wastewater is quickly filtered through the filter membrane, and the metal ions and water molecules in the wastewater quickly pass through the filter membrane, which is beneficial to ensure the treatment efficiency of the wastewater, and in the process of the filter membrane rising, the ammonium paratungstate crystals are fished out by the filter membrane. In this process, when the filter membrane rises in the wastewater and fishes the ammonium paratungstate crystals out of the water surface, the wastewater will impact the ammonium paratungstate crystals intercepted by the filter membrane, thereby effectively reducing the problem that the ammonium tungstate crystals are easily blocked by the filter membrane after being intercepted by the filter membrane;

[0016] By adding multiple protective rods, the filter membrane is slightly deformed into a wave shape when under pressure, and the ammonium paratungstate crystals are accumulated in the concave part of the filter membrane, while reducing the deformation of the filter membrane to prevent it from being torn, so that other parts of the filter membrane can be normally permeable, and in the process of intercepting the ammonium paratungstate crystals, the interference of ammonium paratungstate on the water permeability of the filter membrane is reduced;

[0017] By starting the electromagnetic valve to close, the wastewater pool is in a closed state, so that when the filter membrane rises, the water on its surface is affected by the air pressure, forcing the wastewater to pass through the filter membrane and fall back into the wastewater pool, thereby avoiding excessive untreated wastewater remaining on the filter membrane and ensuring the equipment's treatment capacity for ammonium paratungstate wastewater;

[0018] The limit plate provides an overall support structure for the filter membrane, so that the filter membrane is not pressed downward and damaged, thereby protecting the filter membrane and extending the service life of the equipment, while preventing ammonium paratungstate crystals from falling back into the wastewater from the damaged position of the filter membrane;

[0019] The wastewater is blocked by closing all the guide plates to form a flat plate, so that the guide plates can withstand the impact force of the free fall of the wastewater, thereby preventing the filter membrane from being damaged and protecting the filter membrane. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from a first viewing angle of the present invention;

[0021] Figure 2 is a schematic diagram of a second viewing angle stereoscopic structure of the present invention;

[0022] Figure 3 It is a combined cross-sectional view of a wastewater tank and a sealing plate of the present invention;

[0023] Figure 4 It is an exploded view of the fishing assembly and the protection assembly of the present invention;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention;

[0025] Figure 6 It is a cross-sectional view of the limiting plate of the present invention;

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the wastewater pool, water inlet pipe and collection network combination of the present invention;

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the guide plate of the present invention;

[0028] Fig. 9 This is a diagram showing the transition state of the guide plate of the present invention.

[0029] The names and serial numbers of the parts in the figure are: 1-wastewater tank, 1001-drain port, 2-liquid inlet pipe, 3-sealing plate, 4-electromagnetic valve, 5-first frame, 6-protection rod, 7-filter membrane, 8-liquid adding pipe, 101-water inlet pipe, 102-collection net, 103-water collecting box, 104-first electric slider, 105-second frame, 106-second electric slider, 107-third frame, 108-limiting plate, 109-scraper strip, 110-one-way membrane, 111-limiting rod, 112-slide rail, 113-rotating plate, 201-guide plate, 202-elastic member. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0031] Example 1

[0032] like Figure 1-Figure 7 As shown, a wastewater treatment device for ammonium paratungstate production includes a wastewater pool 1, a liquid inlet pipe 2, a sealing plate 3, a first frame 5, a filter membrane 7 and a liquid adding pipe 8; a drain port 1001 is opened at the rear side of the wastewater pool 1; a sealing plate 3 is arranged on the upper side of the wastewater pool 1; a plurality of liquid inlet pipes 2 are installed on the sealing plate 3; a plurality of liquid inlet pipes 2 penetrate the sealing plate 3; a first frame 5 is connected inside the wastewater pool 1; a filter membrane 7 is arranged on the first frame 5; a liquid adding pipe 8 is connected to the lower part of the front side of the wastewater pool 1; the liquid adding pipe 8 is connected to an external pharmaceutical delivery device;

[0033] It also includes an electromagnetic valve 4, a protective rod 6, a fishing assembly and a flushing assembly; the electromagnetic valve 4 is arranged on the sealing plate 3; a plurality of protective rods 6 are installed on the first frame 5; a fishing assembly is slidably connected in the wastewater pool 1; the first frame 5 and the filter membrane 7 are driven up and down by the fishing assembly; and a flushing assembly is arranged on the wastewater pool 1.

[0034] The flushing assembly includes a water inlet pipe 101, a collecting net 102 and a water collecting box 103; a plurality of water inlet pipes 101 are connected to the front side of the wastewater tank 1; each water inlet pipe 101 is connected to an external water pumping device; a collecting net 102 is fixedly connected to the rear side of the wastewater tank 1; the collecting net 102 is located below the drain outlet 1001; a water collecting box 103 is fixedly connected to the lower rear side of the wastewater tank 1.

[0035] The scooping assembly includes a first electric slider 104, a second frame 105 and a slide rail 112; four rectangularly distributed slide rails 112 are fixedly connected inside the wastewater pool 1; each slide rail 112 is slidably connected to a first electric slider 104; all the first electric sliders 104 are commonly fixedly connected to the second frame 105; the second frame 105 is connected to the first frame 5.

[0036] The protective component includes a second electric slider 106, a third frame 107, a limit plate 108 and a one-way membrane 110; each slide rail 112 is slidably connected to a second electric slider 106; each second electric slider 106 is located below an adjacent first electric slider 104; all the second electric sliders 106 are fixedly connected to the third frame 107; a plurality of limit plates 108 are rotatably connected to the third frame 107; a micro motor is arranged between each limit plate 108 and the third frame 107; a one-way membrane 110 is rotatably connected to the middle of each limit plate 108.

[0037] The third frame 107 further includes a scraper strip 109 ; the scraper strip 109 is fixedly connected to the lower side of the third frame 107 .

[0038] It also includes a limiting rod 111; the lower side of each limiting plate 108 is set to be hollow, and a limiting rod 111 is fixedly connected to the lower side of each limiting plate 108; the limiting rod 111 is made of alloy material.

[0039] It also includes a rotating plate 113 ; the rear side of the wastewater pool 1 is rotatably connected to the rotating plate 113 through an external micro motor; the rotating plate 113 is located in the drain outlet 1001 .

[0040] A plurality of limiting plates 108 are combined to form a wave shape.

[0041] In the process of treating ammonium paratungstate wastewater, the wastewater is introduced into the wastewater pool 1 through the liquid inlet pipe 2 for treatment. Due to the high content of ammonium paratungstate in the wastewater, ammonium paratungstate crystals are easily precipitated in the wastewater. Since the ammonium paratungstate crystals are recyclable resources, when the chemical agent is pumped into the liquid adding pipe 8 through the external pumping equipment to chemically precipitate the wastewater, the precipitate produced by the metal ions is easy to wrap the ammonium paratungstate crystals and precipitate together. This requires further treatment of the metal precipitate when the ammonium paratungstate crystals need to be recovered. In the existing method, the wastewater is first filtered through the filter membrane 7. After the water molecules and metal ions pass through the filter membrane 7, the ammonium paratungstate crystals are The ammonium paratungstate crystals are intercepted on the filter membrane 7, and then the ammonium paratungstate crystals are collected. In this process, due to the large amount of wastewater treated in the wastewater pool 1 at a time, the ammonium paratungstate crystals are easily blocked by the filter membrane 7 after being intercepted, resulting in poor water permeability of the filter membrane 7, and then causing the wastewater to be discharged into the wastewater pool 1 slowly. In order to avoid this phenomenon, in the process of adding wastewater to the wastewater pool 1, the first electric slider 104 is first started to slide downward on the slide rail 112, thereby driving the second frame 105 to move downward to the bottom of the wastewater pool 1, thereby driving the first frame 5 and the filter membrane 7 to move to the bottom of the wastewater pool 1, and then pouring the wastewater into the wastewater pool 1. When the wastewater liquid level is high When the filter membrane 7 is in the middle and upper part of the wastewater tank 1, the injection of wastewater is stopped. At this time, since the filter membrane 7 is in the wastewater, the first electric slider 104 is started to move upward, thereby driving the first frame 5 and the filter membrane 7 to move slowly upward. When the filter membrane 7 moves slowly upward, the filter membrane 7 will be equivalent to the movement of wastewater. At this time, the water pressure forces the wastewater to quickly pass through the filter membrane 7, so that the wastewater is quickly filtered through the filter membrane 7, so that the metal ions and water molecules in the wastewater quickly pass through the filter membrane 7, so that the lower side of the filter membrane 7 is the intercepted wastewater. When the first frame 5 and the filter membrane 7 rise to a height higher than the liquid adding pipe 8, the chemical agent is input into the liquid adding pipe 8 through the external pumping equipment, so that The metal ions in the ammonium paratungstate wastewater begin to precipitate. At the same time, since the ammonium paratungstate crystals are distributed in various positions of the wastewater, during the rising process of the filter membrane 7, the ammonium paratungstate crystals are fished out by the filter membrane 7 until the filter membrane 7 rises and floats to the surface of the water. In this process, when the filter membrane 7 rises in the wastewater to fish the ammonium paratungstate crystals out of the water, the wastewater will impulse the ammonium paratungstate crystals intercepted by the filter membrane 7, thereby effectively reducing the problem of ammonium tungstate crystals being easily blocked by the filter membrane 7 after being intercepted by the filter membrane 7, so that the filter membrane 7 can speed up the filtration and treatment of the wastewater while fishing the ammonium paratungstate crystals out of the water, which is beneficial to ensure the treatment efficiency of the wastewater.

[0042] During the rising process of the filter membrane 7, due to the large overall force-bearing area of ​​the filter membrane 7, the middle part of the filter membrane 7 is easily sunken due to the influence of water pressure during the rising process, which causes the middle part of the filter membrane 7 to be damaged after long-term use. At the same time, the fixed edge between the filter membrane 7 and the first frame 5 is also easily torn due to the influence of water pressure, thereby rendering the filter membrane 7 ineffective. In order to avoid this phenomenon, a plurality of protective rods 6 are added to the lower side of the filter membrane 7 to strengthen the stability of the filter membrane 7 and reduce The deformation amount of the filter membrane 7 when subjected to water pressure provides support for the filter membrane 7 when salvaging the ammonium paratungstate crystals, thereby preventing the filter membrane 7 from being easily torn by the water pressure. At the same time, the addition of multiple protective rods 6 causes the filter membrane 7 to slightly deform into a wave shape when subjected to pressure. The filter membrane 7 that is deformed into a wave shape under pressure is used to cause the ammonium paratungstate crystals to accumulate in the depressions of the filter membrane 7, so that other positions of the filter membrane 7 are normally permeable. In the process of intercepting the ammonium paratungstate crystals, the interference of ammonium paratungstate on the water permeability of the filter membrane 7 is further reduced, so as to ensure the normal treatment efficiency of the wastewater.

[0043] As the filter membrane 7 gradually floats to the surface, the force of the water pressure on the filter membrane 7 gradually decreases, resulting in that when the filter membrane 7 floats to the surface, more wastewater is likely to remain on the surface of the filter membrane 7 and cannot be discharged back to the wastewater pool 1 for treatment, and the efficiency of the wastewater passing through the filter membrane 7 by its own weight is poor, and even the wastewater cannot pass through the filter membrane 7 without pressure. In order to avoid this phenomenon, when the wastewater is injected into the wastewater pool 1, the electromagnetic valve 4 is opened by starting to connect the wastewater pool 1 with the outside world, so as to facilitate the discharge of the internal gas when the wastewater pool 1 is filled with water. At the same time, when the filter membrane 7 floats to the surface, the electromagnetic valve 4 is closed by starting to close the wastewater pool 1. When the filter membrane 7 continues to rise, the filter membrane 7 squeezes the air inside the wastewater pool 1 to form a pressure difference. The wastewater is forced to pass through the filter membrane 7 and fall back to the wastewater pool 1 under the influence of the air pressure, thereby avoiding excessive untreated wastewater remaining on the filter membrane 7, and ensuring the treatment capacity and treatment efficiency of ammonium paratungstate wastewater.

[0044] It is also considered that since the filter membrane 7 is continuously affected by the water pressure and continuously sinks and deforms downward, the filter membrane 7 is still vulnerable to damage during the long-term use. Therefore, a second electric slider 106, a third frame 107 and a limit plate 108 are arranged below the filter membrane 7. When the first electric slider 104 slides downward on the slide rail 112, thereby driving the second frame 105 to move downward to the bottom of the wastewater tank 1, and then driving the first frame 5 and the filter membrane 7 to move to the bottom of the wastewater tank 1, the second electric slider 106 is synchronously made to slide downward on the slide rail 112, thereby driving the third frame 107 and the limit plate 108 to slide downward synchronously. In the initial state, the limit plate 108 is as shown in the following figure. Figure 3 and Figure 4The third frame 107 and the limiting plate 108 are in the wavy state shown, so that after the third frame 107 and the limiting plate 108 are lowered to the bottom of the wastewater tank 1, as the first electric slider 104 continues to slide downward on the slide rail 112, the first frame 5 will contact the third frame 107, and the filter membrane 7 is located above the limiting plate 108. In the process of the filter membrane 7 rising to filter the wastewater and intercept the crystals in the wastewater, the second electric slider 106 is synchronously started to move upward on the slide rail 112, thereby driving the third frame 107 and the limiting plate 108 to move upward with the filter membrane 7. When the filter membrane 7 is compressed and deformed, the limiting plate 108 is attached to the lower side of the filter membrane 7 to provide an overall support structure for the filter membrane 7, so that the filter membrane 7 is not The influence of water pressure causes the filter membrane 7 to continue to be depressed and damaged, thereby protecting the filter membrane 7 and extending the service life of the equipment. At the same time, it prevents ammonium paratungstate crystals from falling back into the wastewater from the damaged position of the filter membrane 7. At this time, the wastewater flows through the filter membrane 7 to the limiting plate 108, and then the one-way membrane 110 opens when the wastewater passes through the one-way membrane 110, so that the wastewater falls back into the wastewater tank 1. In the process of the third frame 107 moving downward, in order to prevent metal ion precipitates from adhering to the inner wall of the wastewater tank 1, the scraper bar 109 is driven downward by the third frame 107 when it moves downward, and then the scraper bar 109 is attached to the inner wall of the wastewater tank 1 and moves downward to scrape off the metal precipitates adhering to the inner wall of the wastewater tank 1.

[0045] In the process of discharging the wastewater back to the wastewater pool 1 through the one-way membrane 110, the lower side of the limiting plate 108 is set to be hollow, and a limiting rod 111 is set on the lower side of the limiting plate 108. The limiting rod 111 is used to support the filter membrane 7, and at the same time, the wastewater can easily flow into the hollow part of the limiting plate 108 through the limiting rod 111, so that it is convenient to discharge the filtered wastewater back to the wastewater pool 1 through the one-way membrane 110, so as to avoid the small drainage place of the limiting plate 108, which may cause the wastewater to reversely osmose and be discharged from the upper side of the filter membrane 7.

[0046] When the filter membrane 7 removes the ammonium paratungstate crystals from the water surface and the wastewater remaining on the filter membrane 7 is discharged into the wastewater pool 1, the third frame 107 and the limit plate 108 are driven by the second electric slider 106 to move downward for a distance, and then all micro motors are started to drive all the limit plates 108 to rotate 180 degrees clockwise based on the front and back view, so that the side of the limit plate 108 with the limit rod 111 faces downward, as shown in FIG. Figure 5 and Figure 6As shown, the second electric slider 106 is then started to drive the limit plate 108 to move upward and fit the lower side of the filter membrane 7, and the first electric slider 104 and the second electric slider 106 are then controlled to move upward synchronously. When the limit plate 108 moves to the position of the drain port 1001, it stops moving. At this time, the external pumping equipment is started to supply water to the water inlet pipe 101. The water enters the wastewater tank 1 through the water inlet pipe 101 to form a water curtain on the upper side of the filter membrane 7 and flows backward, thereby cleaning the ammonium paratungstate on the surface of the filter membrane 7. The wastewater is adjusted to a pH value by adding chemicals to precipitate metal ions. In order to prevent the flushing water from interfering with the treatment of the wastewater, the one-way membrane 110 is facing upward at this time, and the one-way membrane 110 is in a closed state under the influence of the water flow, so that the limit plate 108 and the one-way membrane 110 cooperate to form a sealed state. Initially, the rotating plate 113 is used as shown in Figure 7 The method shown is located at the rear side of the wastewater pool 1, so that the drain port 1001 is in a closed state, and then the water inlet pipe 101 is controlled to discharge clean water to the filter membrane 7, so that the clean water cannot be discharged from the drain port 1001, and the water for washing the ammonium paratungstate crystals flows along the filter membrane 7 and the upper side of the limit plate 108 to wash the ammonium paratungstate crystals. During the washing process of the ammonium paratungstate crystals, based on the view from left to right, the micro motor is controlled to rotate the rotating plate 113 counterclockwise to partially open the drain port 1001, so that the wastewater is discharged into the collection network 102 through the drain port 1001 and flows into the water collection system. The box 103 is opened, and most of the ammonium paratungstate crystals are intercepted at the drain port 1001 and continuously rinsed with clean water, and a small number of smaller ammonium paratungstate crystals fall into the collecting net 102. Finally, the rotating plate 113 is fully opened, so that the rinsed ammonium paratungstate crystals pass through the drain port 1001 and fall into the collecting net 102 under the action of the water flow, and the rinsed water passes through the collecting net 102 and falls into the water collecting box 103, while the ammonium paratungstate crystals are collected in the collecting net 102. There is no need to manually clean the ammonium paratungstate crystals, so as to avoid contact between the harmful substances remaining in the wastewater and the workers.

[0047] It is also considered that by combining all the limiting plates 108 into a wavy structure, the filter membrane 7 is attached to the limiting plates 108 in a wavy shape under the influence of air pressure, so that ammonium paratungstate accumulates in the depression, which is convenient for centralized cleaning of ammonium paratungstate crystals.

[0048] Example 2

[0049] On the basis of Example 1, Figure 1-Figure 4 and Figure 8-Figure 9 As shown, it also includes a guide plate 201 and an elastic member 202; a plurality of guide plates 201 are rotatably connected to the second frame 105 through a torsion spring; an elastic member 202 is fixedly connected to the left and right sides of the second frame 105, and the elastic member 202 is a spring telescopic rod; the telescopic end of the elastic member 202 is fixedly connected to the first frame 5.

[0050] When the second frame 105 is attached to the first frame 5 , all the guide plates 201 are combined into a flat plate.

[0051] In the process of salvaging ammonium paratungstate crystals by the filter membrane 7, in order to prevent a large amount of ammonium paratungstate crystals from accumulating on one side of the filter membrane 7, a guide plate 201 is provided on the second frame body 105. In the initial state, when the first electric slider 104 slides downward on the slide rail 112, thereby driving the second frame body 105 to move downward to the bottom of the wastewater tank 1, after the first frame body 5 will contact the third frame body 107, as the first electric slider 104 continues to drive the second frame body 105 to move downward, the elastic member 202 will be compressed, and the second frame body 105 will fit with the first frame body 5. At this time, the guide plate 201 will be restricted by the filter membrane 7 and cannot move downward, so that the guide plate 201 will rotate around the connection point with the second frame body 105 as the rotating axis, and the torsion spring at the connection point between the guide plate 201 and the second frame body 105 is compressed, so that when the second frame body 105 fits with the first frame body 5, all the guide plates 201 are as follows. Fig. 9 In the flat state shown in the figure, when the filter membrane 7 rises to salvage the ammonium paratungstate crystals, the second frame 105 will first drive the elastic member 202 to move upward, and the first frame 5 and the second frame 105 will gradually separate, so that the telescopic end of the elastic member 202 will gradually stretch, so that the guide plate 201 will be reset to the position as shown in the figure under the action of the torsion spring. Figure 8 In the inverted V-shaped state shown, when the filter membrane 7 rises to salvage the ammonium paratungstate crystals, the ammonium paratungstate crystals distributed in the wastewater are guided by the guide plate 201 to evenly distribute and flow to the filter membrane 7, avoiding the situation where a large amount of ammonium paratungstate accumulates on one side of the filter membrane 7, which is convenient for subsequent flushing and collection. At the same time, when the wastewater in the wastewater pool 1 is precipitated, the external pumping equipment starts to suck, so that the wastewater and the metal ion precipitate are discharged from the wastewater pool 1 together. When it is necessary to inject wastewater into the wastewater pool 1 again for treatment, the filter membrane 7 needs to be lowered to the bottom of the wastewater pool 1. The ammonium paratungstate crystals in the wastewater are salvaged, and because the liquid inlet pipe 2 is located above the wastewater pool 1 and the limiting plate 108 is wave-shaped, the filter membrane 7 has space to deform when it is impacted by the wastewater. As a result, in the process of discharging the wastewater, the freely falling wastewater directly rushes to the surface of the filter membrane 7, which makes the filter membrane 7 easily deformed and deflected by the impact of the wastewater, causing the filter membrane 7 to be damaged. In order to avoid this phenomenon, when the second frame 105 moves downward to fit and reset with the first frame 5, all the guide plates 201 are made as shown in the figure. Fig. 9 As shown in the flat plate state, when the wastewater is discharged from the liquid inlet pipe 2 into the wastewater tank 1, the wastewater is blocked by the flat plate state formed by the closed guide plates 201, so that the guide plates 201 bear the impact force of the free fall of the wastewater, thereby preventing the filter membrane 7 from being damaged and protecting the filter membrane 7.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A wastewater treatment device for ammonium paratungstate production, comprising a wastewater pool (1), a liquid inlet pipe (2), a sealing plate (3), a first frame (5), a filter membrane (7) and a liquid adding pipe (8); a drain port (1001) is provided at the rear side of the wastewater pool (1); a sealing plate (3) is provided at the upper side of the wastewater pool (1); a plurality of liquid inlet pipes (2) are installed on the sealing plate (3); the plurality of liquid inlet pipes (2) penetrate the sealing plate (3); the wastewater pool (1) is connected with the first frame (5); the first frame (5) is provided with a filter membrane (7); the lower part of the front side of the wastewater pool (1) is connected with a liquid adding pipe (8); the liquid adding pipe (8) is connected to an external pharmaceutical delivery device; the device is characterized in that: It also includes an electromagnetic valve (4), a protective rod (6), a scooping assembly and a flushing assembly; the electromagnetic valve (4) is arranged on the sealing plate (3); a plurality of protective rods (6) are installed on the first frame (5) to reduce the deformation of the filter membrane (7) when it is under pressure; the scooping assembly is slidably connected in the wastewater pool (1); the first frame (5) and the filter membrane (7) are driven to move up and down by the scooping assembly; and a flushing assembly for washing ammonium paratungstate crystals is arranged on the wastewater pool (1); The flushing assembly comprises a water inlet pipe (101), a collection net (102) and a water collection box (103); the front side of the wastewater pool (1) is connected to a plurality of water inlet pipes (101) for washing ammonium paratungstate crystals; each water inlet pipe (101) is connected to an external water pumping device; the rear side of the wastewater pool (1) is fixedly connected to a collection net (102); the collection net (102) is located below the drain outlet (1001); the lower part of the rear side of the wastewater pool (1) is fixedly connected to a water collection box (103); The scooping assembly comprises a first electric slider (104), a second frame (105) and a slide rail (112); a plurality of slide rails (112) are fixedly connected inside the wastewater pool (1); each slide rail (112) is slidably connected to a first electric slider (104); all the first electric sliders (104) are fixedly connected to the second frame (105); the second frame (105) is connected to the first frame (5); The protection component comprises a second electric slider (106), a third frame (107), a limit plate (108) and a one-way membrane (110); each slide rail (112) is slidably connected to a second electric slider (106); each second electric slider (106) is located below an adjacent first electric slider (104); all the second electric sliders (106) are fixedly connected to the third frame (107); a plurality of limit plates (108) are rotatably connected to the third frame (107) to prevent the filter membrane (7) from being damaged by pressure; a micro motor is provided between each limit plate (108) and the third frame (107); and a one-way membrane (110) is rotatably connected to the middle of each limit plate (108); It also includes a scraper (109); the scraper (109) is fixedly connected to the lower side of the third frame (107) to prevent sediment from adhering to the inner wall of the wastewater tank (1); It also includes a limiting rod (111); the lower side of each limiting plate (108) is configured to be hollow, and a limiting rod (111) is fixedly connected to the lower side of each limiting plate (108); the limiting rod (111) is made of alloy material; The invention also includes a rotating plate (113); the rear side of the wastewater pool (1) is connected to the rotating plate (113) by means of an external micro motor for rotatably cleaning the wastewater on the surface of the ammonium paratungstate crystals; the rotating plate (113) is located in the drain outlet (1001).

2. A wastewater treatment equipment for ammonium paratungstate production according to claim 1, characterized in that: A plurality of limit plates (108) are combined to form a wave shape.

3. A wastewater treatment equipment for ammonium paratungstate production according to claim 2, characterized in that: It also includes a guide plate (201) and an elastic member (202); a plurality of guide plates (201) are rotatably connected to the second frame (105) via a torsion spring so that ammonium paratungstate crystals are evenly distributed on the filter membrane (7); an elastic member (202) is fixedly connected to the left and right sides of the second frame (105); and the telescopic end of the elastic member (202) is fixedly connected to the first frame (5).

4. A wastewater treatment equipment for ammonium paratungstate production according to claim 3, characterized in that: When the second frame body (105) is attached to the first frame body (5), all the guide plates (201) are combined into a flat plate state.

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