A green and environmentally friendly microbial treatment device and process for electroplating wastewater

Abstract

The present invention relates to the field of biological treatment of electroplating wastewater, and discloses a green and environmentally friendly microbial treatment device for electroplating wastewater, comprising a culture tank and a feeding mechanism and an auxiliary mechanism arranged in the culture tank. The feeding mechanism is used to receive nutrient solution and hot air supplied by a supply mechanism and draw them into the culture tank. During the feeding process, the nutrient solution is distributed in each height layer of the culture solution after linear distribution and planar distribution in turn. The auxiliary mechanism is used to assist the discharge of microorganisms in the culture tank and can prevent the microorganisms from mixing with metabolites and can also prevent the nutrients in the nutrient solution from sinking to the bottom. The present invention also discloses a treatment process of the green and environmentally friendly microbial treatment device for electroplating wastewater, comprising a microorganism culturing process and a process of feeding the microorganisms into an electroplating wastewater treatment tank, which can provide the microorganisms with a good culture environment, improve the survival rate of the microorganisms, and thereby improve the microbial treatment effect of the electroplating wastewater.

Description

Technical Field

[0001] The present invention relates to the field of sewage treatment, specifically to the field of biological treatment of electroplating wastewater, and particularly to the field of microbial cultivation technology in the biological treatment of electroplating wastewater. Background Art

[0002] Biological treatment is one of the methods for treating electroplating wastewater. It uses microorganisms as treatment media to treat electroplating wastewater. During the treatment process, the most important thing is the survival of microorganisms in the treatment pool. The microorganisms in the treatment pool are affected by various culture conditions, such as temperature difference, nutrient solution, and whether there are bacteria that are unfavorable to microorganisms in the culture environment, etc. These are all important factors affecting the survival of microorganisms. Once the survival rate of microorganisms used as treatment media is low, it will seriously affect the treatment effect and efficiency of electroplating wastewater.

[0003] After searching, the applicant found a Chinese utility model patent with authorization announcement number CN217458997U, which is mainly used to keep the temperature of the microbial culture device used in sewage treatment relatively constant with small fluctuations. At the same time, by raising the water level, the cultured microorganisms are allowed to overflow into the sewage regularly to solve the impact of temperature difference on microbial culture. However, it has some shortcomings: 1. The comparative document uses a heating plate to achieve the purpose of heating and temperature control. The heating plate uses electric heating technology. Generally speaking, in electric heating technology, the temperature of the heating plate itself is very high, and the temperature of the culture solution decreases in the direction away from the heating plate. Therefore, on the one hand, the temperature of each part of the culture solution is not actually kept balanced, and there are differences, which is not conducive to microorganisms. Cultivation of organisms, on the other hand, the temperature of the heating plate itself is too high, and the environment around the heating plate is not only not conducive to the cultivation of microorganisms, but also kills the microorganisms at high temperature; 2. During the cultivation of microorganisms, nutrient solution needs to be added regularly to keep the concentration of the nutrient solution in the culture vessel within an appropriate range and the more uniform the better, while in the comparative document, the nutrient solution is directly added through the feed port, and the nutrient solution is dispersed in the culture fluid in the culture vessel through diffusion between molecules, which is not conducive to the uniform distribution of the nutrient solution; in summary, the present application proposes a green and environmentally friendly electroplating wastewater microbial treatment device and process for improving the microbial culture environment to increase the survival rate of microorganisms, thereby helping to improve the microbial treatment effect of electroplating wastewater. Summary of the Invention

[0004] In order to solve the problems mentioned in the above background, the present invention provides a green and environmentally friendly microbial treatment device and process for electroplating wastewater.

[0005] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows.

[0006] A green and environmentally friendly microbial treatment device for electroplating wastewater includes a culture tank, wherein the upper end of the culture tank is provided with a feeding hopper for feeding microbial strains, the lower end is provided with a base, the side is provided with an output port and a control valve is provided at the output port, and the interior of the culture tank is provided with a feeding mechanism, which is used to receive nutrient solution and hot air supplied by a supply mechanism and draw them into the culture tank. During the feeding process, the nutrient solution is distributed linearly and plane-distributed in turn and then spreads to each height layer of the culture solution.

[0007] Furthermore, the delivery mechanism includes a delivery rack, a threaded rod vertically arranged in the culture tank, a motor for driving the threaded rod to rotate is provided on the base, two groups of threaded rods are provided, a worm gear is horizontally installed on the delivery rack, the worm gear is located between the two groups of threaded rods and forms a threaded fit with the two groups of threaded rods respectively, and a delivery unit is provided on the delivery rack.

[0008] Furthermore, the delivery unit includes a rotating ring which is coaxially arranged with the culture tank and rotatably mounted on the delivery rack. The rotating ring and the worm gear are powered by a power transmission member. A delivery leaf is radially extended on the outer cylindrical surface of the rotating ring. The upper end of the delivery leaf is open and matched with a leaf cover, and the lower end is closed. A partition is provided in the delivery leaf. The extension direction of the partition is parallel to the extension direction of the delivery leaf and divides the inner cavity of the delivery leaf into a delivery chamber 1 and a delivery chamber 2 which are not connected to each other. An upper delivery hole connected to the delivery chamber 2 is provided on the leaf cover, and a lower delivery hole connected to the delivery chamber 1 is provided at the lower closed end of the delivery leaf. There are multiple upper delivery holes and lower delivery holes arranged in an array along the extension direction of the delivery leaf.

[0009] Furthermore, a connecting ring is coaxially provided on the inner circumferential surface of the rotating ring, an annular groove 1 and an annular groove 2 are coaxially provided on the upper end surface of the connecting ring, a connecting hole 1 for communicating the annular groove 1 with the delivery chamber 1, and a connecting hole 2 for communicating the annular groove 2 with the delivery chamber 2 are provided on the outer circumferential surface of the connecting ring, a ring cover is coaxially rotatably mounted on the upper end surface of the connecting ring, a connecting hole group is provided on the ring cover, the connecting hole group consists of a connecting hole 4 provided on the lower end surface of the ring cover, and a connecting hole 3 provided on the inner wall of the ring cover and connected to the connecting hole 4, and two connecting hole groups are provided, one connecting hole group is connected to the annular groove 1, and the other connecting hole group is connected to the annular groove 2;

[0010] The upper delivery hole is used for delivering nutrient solution, and the lower delivery hole is used for delivering hot air medium.

[0011] Furthermore, an auxiliary mechanism is provided in the culture tank, which is used to assist in the discharge of microorganisms in the culture tank and to prevent the mixing of microorganisms and metabolites, and to prevent the nutrients in the nutrient solution from sinking to the bottom.

[0012] Furthermore, the auxiliary mechanism includes a screw rod coaxially rotatably installed in the culture tank, and a piston coaxially slidably arranged in the culture tank and located below the delivery rack;

[0013] An upper bracket is provided on the upper end surface of the piston, and a stirring blade coaxially arranged with the culture tank is rotatably mounted on the upper bracket;

[0014] A second motor for driving the screw to rotate is provided on the base. A nut is installed on the external thread of the screw. A switching component is provided between the nut, the screw and the piston. The switching component is used to change the state of the nut. The nut is set to switch between a rotating state in which it only rotates and a moving state in which it only moves. The nut and the stirring blade are powered by a power connector.

[0015] Furthermore, bellows are provided between the upper end of the culture tank and the delivery rack, and between the delivery rack and the upper bracket.

[0016] A treatment process of an electroplating wastewater microbial green environmental protection treatment device, wherein the microbial culture process is as follows:

[0017] Step 1: The motor drives the threaded rod to rotate. There is a speed difference between the two sets of threaded rods, which causes the worm gear to move and rotate at the same time, thereby causing the delivery unit to rotate and move back and forth in the vertical direction;

[0018] At the same time, the nutrient solution provided by the supply mechanism flows sequentially through a group of connecting holes and annular groove two into the second delivery chamber. The nutrient solution in the second delivery chamber is delivered into the culture tank through the upper delivery hole. During the delivery process, the nutrient solution forms a collapse at the upper hole mouth, so that the nutrient solution output through the two adjacent upper delivery holes contacts each other, and the nutrient solution is distributed linearly on the leaf cover. Then, as the delivery unit rotates, the nutrient solution changes from linear distribution to planar distribution. At the same time, as the delivery unit reciprocates, the planar distribution of the nutrient solution spreads throughout all height layers of the culture solution.

[0019] Step 2: Motor 1 is operated to drive the delivery unit to rotate and move back and forth in the vertical direction. At the same time, the hot air medium provided by the supply mechanism is filtered to remove dust and kill miscellaneous bacteria at high temperature, and then flows through another set of connecting holes and annular groove 1 toward delivery chamber 1, and flows toward the culture tank through the lower delivery hole. The hot air moves down for a distance and then floats up. The hot air exposes the culture tank to oxygen while keeping the culture tank in a constant temperature environment.

[0020] Furthermore, during the microbial cultivation process, the nut is in a rotating state. When the second motor is running to drive the screw to rotate, the nut has and only rotates, and the rotation of the nut pulls the stirring blade to rotate through the power connection.

[0021] The process of microorganisms entering the electroplating wastewater treatment tank:

[0022] Step 1: The nut is switched to the moving state. When the motor 2 is running to drive the screw to rotate, the nut can only move upward. The upward movement of the nut brings the piston upward, and the piston pushes the culture solution upward. At the same time, the control valve opens, and the supernatant of the culture solution is discharged into the electroplating wastewater treatment tank through the output port;

[0023] Step 2: After the output is completed, the second motor drives the screw to rotate in the opposite direction, and the auxiliary mechanism is reset.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. During the microbial cultivation process of the present application, the nutrient solution and hot air medium are supplied into the culture tank through the cooperation of the delivery mechanism and the supply mechanism, wherein:

[0026] The nutrient solution is output into the culture tank through the upper delivery hole. During this process, the high-concentration nutrient solution is generally a fluid. When it is delivered through the upper delivery hole, the nutrient solution will collapse at the upper hole mouth, which enables the nutrient solutions output from two adjacent upper delivery holes to contact each other. The nutrient solution is distributed linearly on the leaf cover. Then, as the delivery unit rotates, the nutrient solution changes from linear distribution to planar distribution, which is equivalent to the culture solution being used as a scraping medium to scrape the nutrient solution, so that the nutrient solution is distributed in a planar state. At the same time, as the delivery unit moves back and forth, the planarly distributed nutrient solution spreads over all height layers of the culture solution, achieving uniform distribution of the nutrient solution in the culture tank, and the nutrient solution is more evenly distributed in the culture tank.

[0027] After the hot air medium passes through the filter to remove dust and kills miscellaneous bacteria at high temperature, it flows into the culture tank through the lower discharge hole. The hot air will move down a distance and then float up. This can improve the movement trajectory and movement time of the hot air in the culture liquid, so that the heat exchange and oxygen exposure effects can be improved. In addition, the hot air medium exists in the form of bubbles in the culture liquid and is evenly distributed, thereby improving the temperature balance of various parts of the culture liquid in the culture tank. In addition, the air is in a flowing state and passes through the heating plate. After heating, it flows into the culture tank, so the problem 1 in the background technology will not occur.

[0028] In summary, the culture environment of microorganisms is improved, thereby increasing the survival rate of microorganisms and improving the microbial treatment effect of electroplating wastewater.

[0029] 2. During the microbial culture process, microorganisms generally exist near the liquid surface, which is called clear liquid, and metabolic products are located at the bottom of the liquid, which is called turbid liquid. The clear liquid and turbid liquid cannot be mixed and discharged into the sewage treatment tank;

[0030] In the present application, the setting of the auxiliary mechanism can not only assist in the discharge of microorganisms in the culture tank and prevent the clear liquid from mixing with the turbid liquid, but also stir the culture liquid in the culture tank to prevent some nutrients in the nutrient solution from sinking to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is an internal schematic diagram of the present invention;

[0033] Figure 3 A schematic diagram of the supply organization;

[0034] Figure 4 is a schematic diagram of a heating component;

[0035] Figure 5 It is a schematic diagram of the delivery mechanism and auxiliary mechanism;

[0036] Figure 6 This is an exploded view of the delivery mechanism;

[0037] Figure 7 is a schematic diagram of the connecting ring and the ring cover;

[0038] Figure 8 is a schematic diagram of a threaded rod, a worm gear, and a power transmission member;

[0039] Figure 9 is a schematic diagram of the auxiliary mechanism;

[0040] Figure 10 It is a partial schematic diagram of the auxiliary mechanism;

[0041] Figure 11 Schematic diagram of the screw rod, nut and nut holder;

[0042] Figure 12 It is a cross-sectional view of the screw rod, nut and switching component.

[0043] The reference numerals in the accompanying drawings are:

[0044] 100, culture tank; 101, base; 102, feeding hopper; 103, control valve;

[0045] 200, supply mechanism; 201, water pump; 202, air pump; 203, nutrient tank; 204, heating component; 2041, box; 2042, heating plate;

[0046] 300, bellows;

[0047] 400, delivery mechanism; 401, threaded rod; 402, motor 1; 403, delivery rack; 404, delivery blade; 405, delivery chamber 1; 406, delivery chamber 2; 407, blade cover; 408, connecting ring; 4081, ring groove 1; 4082, ring groove 2; 4083, connecting hole 1; 4084, connecting hole 2; 409, ring cover; 4091, connecting hole 3; 4092, connecting hole 4; 410, worm gear; 411, power transmission member;

[0048] 500, auxiliary mechanism; 501, hydraulic pump; 502, piston; 503, stirring blade; 504, upper bracket; 505, motor 2; 506, screw rod; 5061, side rod; 5062, protruding pin 1; 5063, spring 1; 507, nut; 5071, protruding pin 2; 508, power connecting piece; 509, lower bracket; 510, nut holder; 511, protruding pin 3; 512, spring 2; 513, inner joint. DETAILED DESCRIPTION

[0049] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0050] like Figures 1-12 As shown, a green and environmentally friendly microbial treatment device for electroplating wastewater includes a culture tank 100. The upper end of the culture tank 100 is provided with a feeding hopper 102 for feeding microbial strains, the lower end is provided with a base 101, the side is provided with an output port and a control valve 103 is provided at the output port, and the interior is provided with a feeding mechanism 400. The feeding mechanism 400 is used to receive the nutrient solution and hot air supplied by the supply mechanism 200 and pull them toward the culture tank 100 to make the nutrient solution and hot air evenly distributed in the culture tank 100. During the rising process of the hot air, it will bring heat to the culture solution mixed with the nutrient solution in the culture tank 100, so as to achieve the purpose of keeping the temperature of the microbial culture environment relatively constant and increasing the oxygen content, thereby finally achieving the purpose of improving the microbial culture environment.

[0051] Furthermore, during the microbial culture process, microorganisms generally exist near the liquid surface, which is called clear liquid, and metabolic products are located at the bottom of the liquid, which is called turbid liquid. The clear liquid and the turbid liquid cannot be mixed and discharged into the sewage treatment pool. Therefore, an auxiliary mechanism 500 is also provided in the culture tank 100 to assist the discharge of microorganisms in the culture tank 100 and prevent the clear liquid from mixing with the turbid liquid. In addition, it can also stir the culture liquid in the culture tank 100 to prevent some nutrients in the nutrient solution from sinking to the bottom.

[0052] like Figure 2 and Figure 5-Figure 8 As shown, the delivery mechanism 400:

[0053] The delivery mechanism 400 includes a threaded rod 401 vertically arranged in the culture tank 100. The bottom end of the threaded rod 401 extends out of the culture tank 100 and is driven by a motor 402 arranged on the base 101. There are two groups of threaded rods 401 and two groups of motors 402 are correspondingly arranged.

[0054] The delivery mechanism 400 further includes a delivery rack 403, which is assembled on the threaded rod 401 through a support member. Specifically, Figure 6 and Figure 8 As shown, a worm gear 410 is horizontally installed on the delivery rack 403. The worm gear 410 is located between the two groups of threaded rods 401 and is threadedly matched with the two groups of threaded rods 401 respectively. That is, the threaded rods 401 here are equivalent to worms and are connected to the worm gear 410. Therefore, when the two groups of motors 402 are running: when the two groups of threaded rods 401 rotate in the same direction and at the same speed, the worm gear 410 only moves along the axial direction of the threaded rods 401; when the two groups of threaded rods 401 rotate in opposite directions and at the same speed, the worm gear 410 only rotates around the axis core line; when there is a speed difference between the two groups of threaded rods 401, the worm gear 410 moves along the axial direction of the threaded rods 401 while rotating around the axis core line.

[0055] The delivery rack 403 is also provided with a delivery unit, specifically, Figure 6 and Figure 8 As shown, the delivery unit includes a rotating ring arranged coaxially with the culture tank 100 and rotatably mounted on the delivery rack 403. The rotating ring and the worm gear 410 are connected to each other through a power transmission member 411. The movement of the worm gear 410 brings the delivery rack 403 to move, and naturally brings the delivery unit to move together. The rotation of the worm gear 410 causes the rotating ring to rotate through the power transmission member 411, and the rotating ring rotates with the delivery unit. The power transmission member 411 is as shown in FIG. Figure 8 The figure shows the power transmission route that can be realized by the existing bevel gear, spur gear and ring gear, which will not be described in detail.

[0056] A delivery blade 404 extends radially from the outer circumferential surface of the rotating ring. The upper end of the delivery blade 404 is open and matched with a blade cover 407, and the lower end is closed. A partition is provided in the delivery blade 404. The extension direction of the partition is parallel to the extension direction of the delivery blade 404 and divides the inner cavity of the delivery blade 404 into a delivery chamber 1 405 and a delivery chamber 2 406 that are not connected to each other. The blade cover 407 is provided with an upper delivery hole that communicates with the delivery chamber 2 406. The lower closed end of the delivery blade 404 is provided with a lower delivery hole that communicates with the delivery chamber 1 405. A plurality of upper and lower delivery holes are arranged in an array along the extension direction of the delivery blade 404.

[0057] Furthermore, the upper delivery hole is used to deliver nutrient solution, and the lower delivery hole is used to deliver hot air medium. The significance of this is that, on the one hand, high-concentration nutrient solution is generally a fluid. When delivered through the upper delivery hole, the nutrient solution will collapse at the upper hole mouth, which enables the nutrient solution output from the two adjacent upper delivery holes to contact each other, and the nutrient solution is linearly distributed on the leaf cover 407. Then, as the delivery unit rotates, the nutrient solution changes from linear distribution to planar distribution, which is equivalent to the culture solution being used as a scraping medium to scrape the nutrient solution, so that the nutrient solution is evenly distributed on the surface. At the same time, as the delivery unit moves, the surface distribution of the nutrient solution changes to a uniform three-dimensional distribution, realizing the nutrient solution in the culture tank 10 0. It should be noted that the release unit only needs to move near the liquid surface of the culture solution. On the other hand, when the hot air medium is released through the lower release hole, the hot air will move down a certain distance, which can improve the movement trajectory and movement time of the hot air in the culture solution, so that the heat exchange and oxygen exposure effects can all be improved. On the contrary, when the hot air medium is released through the upper hole and the nutrient solution is released through the lower hole, it is distributed in a vertical line under the action of gravity. The nutrient solution does not collapse, and there is no contact between adjacent output nutrient solutions. The uniform distribution effect is relatively poor, the moving distance and movement time of the hot air medium are relatively short, and the heat exchange and oxygen exposure effects are relatively poor.

[0058] The nutrient solution and hot air are independently input into the second delivery chamber 406 and the first delivery chamber 405 through the cooperation of the connecting ring 408 and the ring cover 409. Specifically, Figure 5 and Figure 7 As shown, the connecting ring 408 is coaxially arranged on the inner circumference of the rotating ring. The upper end surface of the connecting ring 408 is provided with two coaxial annular grooves of unequal diameters: annular groove 1 4081 and annular groove 2 4082. The outer circumference of the connecting ring 408 is also provided with a connecting hole 1 4083 for communicating between the annular groove 1 4081 and the first delivery chamber 405, and a connecting hole 2 4084 for communicating between the annular groove 2 4082 and the second delivery chamber 406.

[0059] The upper end surface of the connecting ring 408 is also coaxially rotatably mounted with a ring cover 409, and the ring cover 409 is provided with a connecting hole group, which consists of a connecting hole four 4092 provided on the lower end surface of the ring cover 409 and a connecting hole three 4091 provided on the inner wall of the ring cover 409 and connected to the connecting hole four 4092. There are two groups of connecting hole groups, one group is connected to the ring groove one 4081, and the other group is connected to the ring groove two 4082; the nutrient solution flows toward the delivery chamber two 406 through one group of connecting hole groups and the ring groove two 4082, and the hot air medium flows toward the delivery chamber one 405 through the other group of connecting hole groups and the ring groove one 4081.

[0060] like Figure 2-Figure 4 As shown, the supply mechanism 200:

[0061] The supply mechanism 200 includes a water pump 201, an air pump 202, a nutrient tank 203 and a heating component 204, wherein the liquid inlet end of the water pump 201 is connected to the nutrient tank 203 via a connecting pipe 1, the liquid outlet end is connected to a connecting hole group connected to the annular groove 4082 via a connecting pipe 2, the air inlet end of the air pump 202 is provided with a filter, the air outlet end is connected to the heating component 204 via a connecting pipe 3, and the heating component 204 is connected to the connecting hole group connected to the annular groove 4081 via a connecting pipe 4.

[0062] Further, such as Figure 4 As shown, the heating component 204 includes a box body 2041, and the inner cavity of the box body 2041 is configured as two chambers: chamber 1 and chamber 2. Chamber 1 and chamber 2 are provided with a through hole for communication between the two chambers at one end along the extension direction. In each group of chambers, a plurality of heating plates 2042 are arranged in an array along the extension direction. The heating plates 2042 are arranged obliquely and the gaps for air to pass between two adjacent heating plates 2042 and the chambers are respectively located at both ends of the heating plates 2042, as shown in FIG. Figure 4 As shown, chamber one is connected to connecting pipe three, and chamber two is connected to connecting pipe four; its significance lies in that such a setting can make the air come into contact with the heating plate 2042. The heating plate 2042 adopts electric heating technology, and its surface temperature is relatively high, up to hundreds of degrees Celsius. When the air comes into contact with it, the bacteria in the air will be killed by the high temperature. Since the air has been filtered by the filter before, the hot air medium finally transported to the culture tank 100 is relatively clean and will not bring dust, impurities, bacteria, etc. into the culture environment of the microorganisms.

[0063] like Figure 2 、 Figure 5 and Figures 9-12 As shown, the auxiliary mechanism 500:

[0064] The auxiliary mechanism 500 includes a piston 502 coaxially slidably arranged in the culture tank 100 and located below the delivery rack 403 . An upper bracket 504 is provided on the upper end surface of the piston 502 , and a stirring blade 503 coaxially arranged with the culture tank 100 is rotatably mounted on the upper bracket 504 .

[0065] The auxiliary mechanism 500 also includes a screw rod 506 coaxially mounted in the culture tank 100, the bottom end of the screw rod 506 extends out of the culture tank 100 and is driven by a motor 2 505 arranged on the base 101, and a nut 507 is installed on the external thread of the screw rod 506. A switching member is provided between the nut 507, the screw rod 506 and the piston 502, and the switching member is used to change the state of the nut 507. The nut 507 is set to switch between a rotating state and a moving state. When in the rotating state, the nut 507 can and can only be rotated by the screw rod 506. The nut 507 and the stirring blade 503 are connected by a power connection. The connector 508 forms a power connection, and the rotation of the nut 507 drives the stirring blade 503 to rotate through the power connector 508. At this time, the stirring blade 503 is located at the bottom of the culture tank 100. The rotation can prevent the nutrients in the nutrient solution from sinking to the bottom. When in a moving state, the nut 507 can and can only be driven by the screw rod 506 to move in the vertical direction. The movement of the nut 507 brings the piston 502 with it. The piston 502 moves upward to push the culture solution in the culture tank 100 upward. At the same time, the control valve 103 is opened, and the clear liquid in the culture solution is input into the electroplating wastewater treatment pool through the output port, and the piston 502 moves downward and resets.

[0066] Specifically, such as Figure 10-12 As shown:

[0067] The switching member includes a lower bracket 509 provided on the lower end surface of the piston 502 and a nut holder 510 provided on the lower bracket 509 .

[0068] like Figure 12 As shown, a wire hole is coaxially provided at the bottom end of the screw rod 506, and the wire hole is divided into a cylindrical section located at the bottom and a rectangular section located at the top. An inner joint 513 is coaxially installed in the cylindrical section, and an outer circular surface of the inner joint 513 is provided with an opening 2. The portion of the screw rod 506 corresponding to the opening 2 is provided with an opening 1, and there is a gap between the opening 1 and the opening 2. A hydraulic pump 501 is provided on the base 101, and a hydraulic pipe is provided at the liquid outlet end of the hydraulic pump 501. A rotary joint is provided between the hydraulic pipe and the screw rod 506. The hydraulic medium is driven by the hydraulic pump 501 to pass through the hydraulic pipe, the rotary joint, the opening 1, the gap, and the opening 2 to flow into the inner joint 513, and then flows into the rectangular section of the wire hole through the upper opening of the inner joint 513.

[0069] like Figure 12 As shown, two sets of side rods 5061 are slidably mounted in the rectangular section of the thread hole. The area between the bottom ends of the two sets of side rods 5061 is connected to the upper pipe opening of the inner joint 513. When hydraulic medium flows into the rectangular section through the inner joint 513, the hydraulic medium is located between the two sets of side rods 5061 and pushes the two sets of side rods 5061 away from each other.

[0070] A pin hole 1 is provided along the outer surface of the screw rod 506, and a convex pin 5062 is slidably installed in the pin hole 1. The convex pin 1 5062 is connected to the side rod 5061, and a spring 1 5063 is also provided between the side rod 5061 and the side wall of the rectangular section. In the initial state, the surface of the convex pin 1 5062 facing away from the side rod 5061 is located at the outer opening of the pin hole 1 and has an arc shape that is adapted to the shape of the opening of the pin hole 1. When the hydraulic medium drives the two groups of side rods 5061 away from each other, the convex pin 1 5062 extends out of the pin hole 1. When the hydraulic medium flows back, the spring 1 5063 releases the elastic force, the two groups of side rods 5061 approach each other, and the convex pin 1 5062 is reset.

[0071] like Figure 12 As shown, a pin hole 2 is opened along the outer circular surface of the nut 507. In the initial state, the piston 502 is located at the bottom of the culture tank 100 and the pin hole 1 is connected to the pin hole 2. A convex pin 2 5071 is slidably installed in the pin hole 2. The two ends of the convex pin 2 5071 are respectively in an arc shape that is adapted to the shape of the two openings of the pin hole 2 and in the initial state, the end of the convex pin 2 5071 facing the screw rod 506 is located at the opening of the pin hole 2 facing the screw rod 506.

[0072] like Figure 12 As shown, a third protruding pin 511 is installed on the nut frame 510 and slides radially along the nut 507. A second spring 512 is provided on the side of the third protruding pin 511 facing away from the nut 507. In the initial state, one end of the third protruding pin 511 extends into the second pin hole.

[0073] The process of switching components to change the state of nut 507:

[0074] In the initial state, one end of the convex pin three 511 extends into the pin hole two, and the convex pin one 5062 does not extend into the pin hole two. Therefore, at this time, the nut 507 and the screw rod 506 form a threaded fit, and the nut 507 is connected to the nut holder 510. The nut holder 510 is set on the lower bracket 509, and the lower bracket 509 is set on the piston 502. The piston 502 has a sliding fit in the vertical direction. Therefore, at this time, the nut 507 also has a sliding fit in the vertical direction. When the screw rod 506 rotates, the nut 507 moves in the vertical direction. The nut 507 moves with the nut holder 510, the lower bracket 509, the piston 502, the stirring blade 503, etc., that is, the nut 507 is in a moving state;

[0075] When the hydraulic pump 501 fills the hydraulic medium into the thread hole, the hydraulic medium pushes the two sets of side rods 5061 away from each other, so that the convex pin 1 5062 extends into the pin hole 2, the convex pin 3 511 retreats and exits the pin hole 2, and the convex pin 2 5071 is located in the pin hole 2 as a whole. At this time, the nut 507 is disconnected from the nut frame 510, and the nut 507 is connected to the screw rod 506. When the screw rod 506 rotates, it rotates with the nut 507. The nut 507 rotates with the stirring blade 503 through the power connecting piece 508, that is, the nut 507 is in a rotating state.

[0076] Further, such as Figure 2 As shown, bellows 300 are provided between the upper end of the culture tank 100 and the delivery rack 403 and between the delivery rack 403 and the upper bracket 504; the auxiliary mechanism 500 and the related structures in the delivery mechanism 400 are isolated and protected, and isolated from contact with the culture solution.

[0077] Working principle of the present invention:

[0078] The culture solution and microbial strains are fed into the culture tank 100 through the feeding hopper 102. During the culture process, the process of adding nutrient solution into the culture tank 100 is as follows:

[0079] The operation of motor 1 402 drives the delivery unit to rotate and reciprocate in the vertical direction. At the same time, the water pump 201 operates, so that the nutrient solution in the nutrient tank 203 flows into the delivery chamber 2 406 through the connecting pipe 1, the connecting pipe 2, the first group of connecting holes, and the second annular groove 4082 in sequence. The nutrient solution in the delivery chamber 2 406 is delivered into the culture tank 100 through the upper delivery hole. During this process, the high-concentration nutrient solution is generally a fluid. When it is delivered through the upper delivery hole, the nutrient solution will collapse at the upper hole mouth, which enables the nutrient solution output from the two adjacent upper delivery holes to contact each other. The nutrient solution is distributed linearly on the leaf cover 407. Then, as the delivery unit rotates, the nutrient solution changes from linear distribution to planar distribution, which is equivalent to the culture solution acting as a scraping medium to scrape the nutrient solution, so that the nutrient solution is distributed on a surface. At the same time, as the delivery unit reciprocates, the surface-distributed nutrient solution spreads throughout all height layers of the culture solution, achieving uniform distribution of the nutrient solution in the culture tank 100.

[0080] During the culture process, the temperature control process in the culture tank 100 is as follows:

[0081] The operation of motor 402 drives the delivery unit to rotate and move back and forth in the vertical direction. At the same time, the air pump 202 is running. When the air passes through the heating component 204, it is heated into a hot air medium and filtered to remove dust and kill bacteria at high temperature. Then, the hot air medium flows into the delivery chamber 405 through another set of connecting holes and annular groove 4081, and flows into the culture tank 100 through the lower delivery hole. The hot air will move down a distance and then float up. This can improve the movement trajectory and movement time of the hot air in the culture solution, so that the heat exchange and oxygen exposure effects can be improved.

[0082] Furthermore, during the cultivation process, the nut 507 is in a rotating state, and the stirring blades 503 rotate to prevent some components in the nutrient solution from sinking to the bottom.

[0083] The process of exporting microorganisms to the electroplating wastewater treatment tank:

[0084] The nut 507 switches to the moving state, and the second motor 505 drives the piston 502 to move upward. The piston 502 pushes the culture solution upward. At the same time, the control valve 103 opens, and the supernatant of the culture solution is discharged into the treatment tank through the output port, that is, the microorganisms are pulled toward the output port.

[0085] After the output is completed, the piston 502 moves downward and resets, the control valve 103 is closed, and the cultivation of microorganisms continues.

[0086] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A microbial green environmental protection treatment device for electroplating wastewater, comprising a culture tank (100), wherein the upper end of the culture tank (100) is provided with a feeding hopper (102) for feeding microbial strains, the lower end is provided with a base (101), and the side is provided with an output port and a control valve (103) is provided at the output port, characterized in that: It also includes a supply mechanism (200), and a delivery mechanism (400) is provided inside the culture tank (100). The delivery mechanism (400) is used to receive the nutrient solution and hot air supplied by the supply mechanism (200) and draw them into the culture tank (100). During the delivery process, the nutrient solution is distributed linearly and planarly in turn and then spreads to each height layer of the culture solution. The delivery mechanism (400) includes a delivery frame (403), a threaded rod (401) vertically arranged in the culture tank (100), a motor (402) for driving the threaded rod (401) to rotate is provided on the base (101), two groups of threaded rods (401) are provided, a worm gear (410) is horizontally installed on the delivery frame (403), the worm gear (410) is located between the two groups of threaded rods (401) and respectively forms a threaded fit with the two groups of threaded rods (401), and a delivery unit is provided on the delivery frame (403); The delivery unit includes a rotating ring coaxially arranged with the culture tank (100) and rotatably mounted on the delivery frame (403), the rotating ring and the worm gear (410) are connected to each other by a power transmission member (411), the outer circumferential surface of the rotating ring is provided with a delivery leaf (404) extending radially, the upper end of the delivery leaf (404) is open and matched with a leaf cover (407), and the lower end is closed, a partition is provided in the delivery leaf (404), the extension direction of the partition is parallel to the extension direction of the delivery leaf (404) and the inner cavity of the delivery leaf (404) is divided into a delivery chamber 1 (405) and a delivery chamber 2 (406) which are not connected to each other, the leaf cover (407) is provided with an upper delivery hole connected to the delivery chamber 2 (406), the lower closed end of the delivery leaf (404) is provided with a lower delivery hole connected to the delivery chamber 1 (405), and a plurality of the upper delivery holes and the lower delivery holes are arranged in an array along the extension direction of the delivery leaf (404); The upper delivery hole is used for delivering nutrient solution, and the lower delivery hole is used for delivering hot air medium.

2. The electroplating wastewater microbial green environmental protection treatment device according to claim 1, characterized in that: The inner circumferential surface of the rotating ring is coaxially provided with a connecting ring (408), the upper end surface of the connecting ring (408) is coaxially provided with a ring groove 1 (4081) and a ring groove 2 (4082), the outer circumferential surface of the connecting ring (408) is provided with a connecting hole 1 (4083) for connecting the ring groove 1 (4081) with the delivery chamber 1 (405), and a connecting hole 2 (4084) for connecting the ring groove 2 (4082) with the delivery chamber 2 (406), and the upper end surface of the connecting ring (408) is provided with a connecting hole 1 (4083) for connecting the ring groove 1 (4081) with the delivery chamber 1 (405), and a connecting hole 2 (4084) for connecting the ring groove 2 (4082) with the delivery chamber 2 (406). A ring cover (409) is coaxially rotatably mounted on the end face, and a connecting hole group is provided on the ring cover (409), the connecting hole group consisting of a fourth connecting hole (4092) provided on the lower end face of the ring cover (409), and a third connecting hole (4091) provided on the inner wall of the ring cover (409) and connected to the fourth connecting hole (4092). There are two connecting hole groups, one connecting hole group is connected to the first ring groove (4081), and the other connecting hole group is connected to the second ring groove (4082).

3. The electroplating wastewater microbial green environmental protection treatment device according to claim 1 or 2, characterized in that: An auxiliary mechanism (500) is also provided in the culture tank (100). The auxiliary mechanism (500) is used to assist in the discharge of microorganisms in the culture tank (100) and can prevent the microorganisms from mixing with metabolites, and can also prevent the nutrients in the nutrient solution from sinking to the bottom.

4. The electroplating wastewater microbial green environmental protection treatment device according to claim 3 is characterized by: The auxiliary mechanism (500) includes a screw rod (506) coaxially rotatably mounted in the culture tank (100), and a piston (502) coaxially slidably disposed in the culture tank (100) and located below the delivery rack (403); An upper bracket (504) is provided on the upper end surface of the piston (502), and a stirring blade (503) coaxially arranged with the culture tank (100) is rotatably mounted on the upper bracket (504); A second motor (505) for driving the screw (506) to rotate is provided on the base (101). A nut (507) is installed on the external thread of the screw (506). A switching member is provided between the nut (507), the screw (506) and the piston (502). The switching member is used to change the state of the nut (507). The nut (507) is configured to switch between a rotation state in which only rotation occurs and a movement state in which only movement occurs. A power connection is formed between the nut (507) and the stirring blade (503) via a power connector (508).

5. The electroplating wastewater microbial green environmental protection treatment device according to claim 4 is characterized by: A bellows (300) is provided between the upper end of the culture tank (100) and the delivery rack (403), and between the delivery rack (403) and the upper support (504).

6. The treatment process of the electroplating wastewater green and environmentally friendly microbial treatment device according to claim 4, characterized in that: It includes a microbial culture process, which includes the following steps: Step 1: The motor 1 (402) is operated to drive the threaded rod (401) to rotate. There is a speed difference between the two sets of threaded rods (401), which causes the worm gear (410) to move and rotate at the same time, thereby causing the delivery unit to rotate and reciprocate in the vertical direction; At the same time, the nutrient solution provided by the supply mechanism (200) flows sequentially through a group of connecting holes and the second annular groove (4082) toward the second delivery chamber (406). The nutrient solution in the second delivery chamber (406) is delivered toward the culture tank (100) through the upper delivery hole. During the delivery process, the nutrient solution collapses at the upper hole mouth, so that the nutrient solution output through the two adjacent upper delivery holes contacts each other. The nutrient solution is linearly distributed on the leaf cover (407). Then, as the delivery unit rotates, the nutrient solution changes from linear distribution to planar distribution. At the same time, as the delivery unit moves back and forth, the planarly distributed nutrient solution spreads over all height layers of the culture solution. Step 2: The motor 1 (402) is operated to drive the delivery unit to rotate and move back and forth in the vertical direction. At the same time, the hot air medium provided by the supply mechanism (200) is filtered to remove dust and kill miscellaneous bacteria at high temperature, and then flows through another group of connecting holes and the annular groove 1 (4081) toward the delivery chamber 1 (405), and flows toward the culture tank (100) through the lower delivery hole. The hot air moves down for a distance and then floats up. The hot air exposes the culture tank (100) to oxygen while keeping the culture tank (100) in a constant temperature environment.

7. The treatment process of the electroplating wastewater microbial green environmental protection treatment device according to claim 6 is characterized by: During the microbial cultivation process, the nut (507) is in a rotating state. When the second motor (505) is running to drive the screw (506) to rotate, the nut (507) can and only can rotate. The rotation of the nut (507) pulls the stirring blade (503) to rotate through the power connection (508).

8. The treatment process of the electroplating wastewater green and environmentally friendly microbial treatment device according to claim 4, characterized in that: The process of introducing microorganisms into the electroplating wastewater treatment tank includes the following steps: Step 1: The nut (507) is switched to a moving state. When the second motor (505) is running to drive the screw (506) to rotate, the nut (507) can and only can move upward. The nut (507) moves upward with the piston (502). The piston (502) pushes the culture solution upward. At the same time, the control valve (103) is opened, and the upper clear liquid of the culture solution is discharged into the electroplating wastewater treatment tank through the output port. Step 2: After the output is completed, the second motor (505) drives the screw (506) to rotate in the opposite direction, and the auxiliary mechanism (500) is reset.

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