A laboratory sewage treatment device

Abstract

The invention provides a laboratory sewage treatment device, which belongs to the technical field of sewage treatment, and comprises a primary sewage treatment device, wherein the primary sewage treatment device is used for conducting sewage treatment experiments in the laboratory, and the secondary sewage treatment device is used for further treating the sewage treated by the primary sewage treatment device. The filter plate is driven to move by an electric push rod, so that the first gear and the first rack interact with each other to drive the rotating plate to rotate, and the filter plate moves downward to achieve uniform mixing of sewage and flocculant through the through groove and the filter hole, thereby ensuring uniform dispersion of the flocculant in the sewage, improving the effect and efficiency of the flocculation reaction, and facilitating the formation and separation of subsequent metal impurity precipitation. The rotating arrangement of the rotating plate can effectively prevent the filter hole from being blocked by impurities during the working process of the filter plate, and when the sewage flows through, the rotation of the rotating plate can disturb the impurities near the filter hole, so that it is not easy to adhere to the surface of the filter hole.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a sewage treatment device for a laboratory. Background Art

[0002] With the acceleration of industrialization and the frequent development of various laboratory research activities, the treatment of metal impurities in sewage has become a key challenge in the field of environmental protection and resource recovery. The existing sewage treatment technology still has shortcomings in treating metal-containing sewage: in the mixing process of metal impurities and flocculants, traditional devices often lack an efficient mixing mechanism. In most cases, it is difficult to ensure that the metal impurities and flocculants are in full contact in the sewage by relying solely on simple stirring or natural diffusion. This insufficient reaction directly reduces the effectiveness of the flocculant. The metal impurities cannot form large and stable flocs, which seriously affects the precipitation effect. Ultimately, a large amount of metal impurities remain in the treated sewage, resulting in a waste of metal resources. Therefore, the present application provides a laboratory sewage treatment device to meet the needs. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a laboratory sewage treatment device to solve the problem that existing traditional devices often lack an efficient mixing mechanism. In most cases, it is difficult to ensure that metal impurities and flocculants are in full contact in the sewage by simply relying on simple stirring or natural diffusion. This insufficient reaction directly reduces the effectiveness of the flocculant.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A laboratory sewage treatment device, comprising a primary sewage treatment device, a secondary sewage treatment device is further provided on one side of the primary sewage treatment device, the primary sewage treatment device is used for conducting sewage treatment experiments in the laboratory, the secondary sewage treatment device is used for further treating sewage treated by the primary sewage treatment device, and the secondary sewage treatment device comprises a tank body and a sewage inlet connected to the top of the tank body;

[0006] A filter plate is slidably provided on the inner wall of the tank body, a plurality of filter holes are provided on the surface of the filter plate, a plurality of through grooves are provided on the surface of the filter plate, a first rotating rod is rotatably provided on the inner wall of the through groove, a rotating plate is fixedly provided on the outer wall of the first rotating rod, a first gear is fixedly provided on the outer wall of the first rotating rod, a torsion spring is sleeved on one end of the first rotating rod away from the first gear, one end of the torsion spring is fixed to the rotating plate, and the other end of the torsion spring is fixed to the through groove, a plurality of first support bars are fixedly provided on the inner wall of the tank body, a plurality of first racks are equidistantly provided on the first support bar, an electric push rod is fixedly provided on the top of the tank body, and the protruding end of the electric push rod is fixed to the filter plate.

[0007] Optionally, a first cover plate and a second cover plate are slidably provided on the surface of the filter plate, a second rotating rod is rotatably provided on the filter plate, a second gear is fixedly provided on the outer side wall of the second rotating rod, a second rack is fixedly provided on a side of the first cover plate close to the second gear, a third rack is fixedly provided on a side of the second cover plate close to the second gear, the second rack and the third rack are both meshed and connected with the second gear, a side of the second rack close to the second cover plate is slidably connected to an inner wall of the second cover plate, and a side of the third rack close to the first cover plate is slidably connected to an inner wall of the first cover plate;

[0008] The outer wall of the second rotating rod is provided with a sliding groove, and the inner wall of the sliding groove is slidably provided with a third gear, and a convex part is fixedly provided on the side of the third gear close to the sliding groove, and the convex part slides with the sliding groove, and an extrusion part is rotatably provided on the end of the second rotating rod away from the first cover plate through a bearing, and a second support bar is fixedly provided on the inner wall of the tank body, and a moving part is slidably provided on the inner wall of the first support bar, and a first spring is fixedly provided on the inner wall of the support bar, one end of the first spring is fixed to the moving part, and a fourth rack is fixedly provided on one side of the moving part.

[0009] Optionally, a sewage outlet is provided at the bottom of the tank body, a first support frame is fixedly provided on the inner wall of the tank body, a sliding rod is slidably provided on the inner wall of the first support frame, a plug is fixedly provided on the outer wall of the sliding rod, and the plug is used to block the sewage outlet, a second support frame is fixedly provided on the inner wall of the tank body located on one side of the first support frame, a third rotating rod is rotatably provided on the inner wall of the second support frame, a top plate is fixedly provided on the outer wall of the third rotating rod, a second spring is fixedly provided on the bottom of the tank body, one end of the second spring is fixed to the top plate, and a side of the top plate close to the sliding rod is slidably connected to the outer wall of the sliding rod through a sliding hole.

[0010] Optionally, the sewage outlet is fixedly connected to a sewage pipe, a partition is fixedly provided on the inner wall of the sewage pipe, through holes are equidistantly provided on the partition, a miscellaneous pipe is fixedly connected to the inner wall of the sewage pipe, a sewage pipe is fixedly connected to the inner wall of the sewage pipe, and two collecting boxes are provided under the tank body, and the two collecting boxes are used to collect the miscellaneous pipe and the sewage pipe, respectively.

[0011] Optionally, the primary sewage treatment device includes a box body, a magnetic stirring device is arranged on the surface of the box body, a plurality of semiconductor refrigeration fins are equidistantly arranged on the inner wall of the box body, a cooling fan for controlling the temperature inside the box body is also arranged on the inner wall of the box body, and a control panel for controlling the rotation speed and temperature of the magnetic stirring device is also installed on one side of the box body.

[0012] Optionally, the extrusion piece is arranged in an inclined surface.

[0013] Optionally, a sealing ring is fixedly provided on the outer side wall of the plug.

[0014] Optionally, through slots are formed on the first support frame and the second support frame at equal intervals.

[0015] Optionally, scale lines are equidistantly provided on one side of the tank body.

[0016] Optionally, an observation window is provided on one side of the tank body close to the scale line.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, the filter plate is driven to move by the electric push rod, so that the first gear and the first rack interact with each other to drive the rotating plate to rotate, and the filter plate moves downward, so that the sewage and the flocculant are evenly mixed up and down through the through groove and the filter hole, thereby ensuring the uniform dispersion of the flocculant in the sewage, improving the effect and efficiency of the flocculation reaction, and facilitating the subsequent formation and separation of metal impurity precipitation;

[0019] The rotating setting of the rotating plate can effectively prevent impurities from clogging the filter holes during the working process of the filter plate. When sewage flows through, the rotation of the rotating plate can disturb the impurities near the filter holes, making it difficult for them to adhere to the surface of the filter holes, and can shake off some of the blocked impurities, thereby continuously maintaining the high filtration efficiency of the filter plate, reducing problems such as treatment interruption or reduced treatment effect caused by filter hole blockage, extending the service life of the filter plate, and reducing equipment maintenance costs;

[0020] By setting the first cover plate and the second cover plate, the sliding action on the filter plate can completely cover the filter holes and the through grooves on the filter plate, so as to achieve a stratified state in which the upper part of the tank body is sewage and the lower part is impurities, effectively reducing the problem of sewage and precipitated impurities mixing with each other again in the subsequent treatment process, simplifying the process of removing metal impurities separately, and improving the treatment efficiency and effect;

[0021] The filter plate is pushed down by an electric push rod. With the help of the linkage of the extrusion part on the filter plate, the rotation of the top plate, the sliding of the slide rod and the opening and closing of the sewage outlet by the plug can be controlled. The sewage outlet can be opened at a specific time to discharge impurities according to the predetermined procedure and needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 This is a schematic diagram of the overall structure of a laboratory sewage treatment device;

[0024] Figure 2 It is a schematic diagram of another perspective of the overall laboratory sewage treatment device;

[0025] Figure 3 This is a schematic diagram of the electric push rod, tank body and observation window of the laboratory sewage treatment device;

[0026] Figure 4 It is a schematic diagram of a filter plate, a second rotating rod and an extrusion member of a laboratory sewage treatment device;

[0027] Figure 5 A schematic diagram of a wastewater inlet, extrusion parts and filter plates of a laboratory wastewater treatment device;

[0028] Figure 6 It is a schematic diagram of a filter plate, a first cover plate and a second cover plate of a laboratory sewage treatment device;

[0029] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0030] Figure 8 It is a schematic diagram of a first rack, a second rack and a second gear of a laboratory sewage treatment device;

[0031] Fig. 9 It is a schematic diagram of a first support bar, a tank body and a second support bar of a laboratory sewage treatment device;

[0032] Fig.10A schematic diagram of a plug, a first support frame and a second support frame of a laboratory sewage treatment device;

[0033] Fig.11 A schematic diagram of a second rotating rod, a third gear and an extrusion member of a laboratory sewage treatment device;

[0034] Fig.12 A schematic diagram of the filter plates and extrusions of a laboratory wastewater treatment device;

[0035] Fig.13 for Fig.12 Enlarged view of point A in the middle;

[0036] Fig.14 This is a schematic diagram of the tank, sewage pipe and collection box of the laboratory sewage treatment device;

[0037] Fig.15 for Fig.14 Enlarged view of point B in the middle;

[0038] Fig.16 This is a schematic diagram of the box, magnetic stirring device and cooling fan of the laboratory sewage treatment device.

[0039] Reference numerals:

[0040] 1. Primary sewage treatment device; 101. Box; 102. Magnetic stirring device; 103. Semiconductor refrigeration heat sink; 104. Cooling fan; 105. Control panel; 2. Secondary sewage treatment device; 201. Tank; 202. Sewage inlet; 203. Filter plate; 204. Filter hole; 205. Through slot; 206. First rotating rod; 207. Rotating plate; 208. First gear; 209. Torsion spring; 210. First support bar; 211. First rack; 212. Electric push rod; 213. First cover plate; 214. Second cover plate; 215. Second rotating rod; 216. Second gear; 217 , second rack; 218, third rack; 219, slide; 220, third gear; 221, convex part; 222, extrusion part; 223, second support bar; 224, moving part; 225, first spring; 226, fourth rack; 227, sewage outlet; 228, first support frame; 229, slide bar; 230, plug; 231, second support frame; 232, third rotating rod; 233, top plate; 234, second spring; 235, sewage pipe; 236, partition; 237, through hole; 238, drainage pipe; 239, sewage pipe; 240, collecting box; 3, scale line; 4, observation window; 300, ring.

[0041] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0042] The following is a detailed description of a laboratory sewage treatment device provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0043] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0044] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0045] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0046] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0047] like Figures 1 to 16 As shown, an embodiment of the present invention provides a laboratory sewage treatment device, including a primary sewage treatment device 1, wherein the primary sewage treatment device 1 includes a housing 101, a magnetic stirring device 102 is provided on the surface of the housing 101, and the magnetic stirring device 102 is equipped with a beaker, which drives the stirring bar to rotate rapidly in the beaker by magnetic force, so that the sewage and the chemical agent added subsequently are fully mixed and contacted, the chemical reaction process is accelerated, and it is ensured that the metal impurities can react with the agent evenly, thereby improving the removal efficiency of the metal impurities, and the inner wall of the housing 101 is equidistantly provided with semiconductor refrigeration fins 103, which treat the sewage. The heat generated by the chemical reaction when mixing with water can be absorbed and transferred. The cooling fan 104 cooperates with the semiconductor refrigeration heat sink 103 to enhance the air circulation in the box and quickly dissipate the heat to the outside. The operator can accurately control the speed of the magnetic stirring device 102 through the control panel 105, and the optimal speed is required according to the properties of the sewage, the treatment volume and the chemical agent to achieve the best mixing effect. After the metal impurities form tiny precipitated particles, flocculants are added, and the active groups of the molecular chains act on the surface charges of the precipitated particles to reduce the electrostatic repulsion and adsorb and bridge, so that the particles agglomerate into larger flocs. This is a prior art and will not be described in detail here.

[0048] Taking into account the considerable amount of metal-containing wastewater generated in the laboratory, and the complicated process of treating such wastewater, which requires a lot of manpower and time costs, a secondary sewage treatment device 2 is also installed on one side of the primary sewage treatment device 1, which mainly performs deep purification treatment on the metal-containing wastewater, separates and extracts the metal components in the sewage, thereby realizing the resource utilization of the sewage and creating favorable conditions for subsequent resource recycling and reuse.

[0049] Specifically, the secondary sewage treatment device 2 includes a tank body 201 and a sewage inlet 202 connected to the top of the tank body 201. One side of the tank body 201 is equidistantly provided with scale lines 3, and the scale lines 3 are the first scale bar, the second scale bar and the third scale bar in sequence. The filter plate 203 is slidably arranged on the inner wall of the tank body 201, and is made of high-strength, corrosion-resistant materials, such as stainless steel or special engineering plastics. The specific material is not limited. A plurality of filter holes 204 are evenly arranged on its surface. A plurality of through grooves 205 are arranged on the surface of the filter plate 203. The inner wall of each through groove 205 is rotatably provided with a first rotating rod 206. The outer wall of the first rotating rod 206 is fixedly connected with a rotating plate 207 and a first gear 208. The torsion spring The spring 209 is sleeved on one end of the first rotating rod 206 away from the first gear 208, one end of which is fixedly connected to the rotating plate 207, and the other end is fixedly connected to the through groove 205. A plurality of first support bars 210 are fixedly arranged on the inner wall of the tank body 201. The first support bar 210 is made of a solid metal material, such as aluminum alloy or carbon steel, and the specific material is not limited. A plurality of first racks 211 are equidistantly arranged on the first support bar 210. An electric push rod 212 is fixedly installed on the top of the tank body 201. The protruding end of the electric push rod 212 is fixedly connected to the filter plate 203. An observation window 4 is provided on the side of the tank body 201 close to the scale line 3. The observation window 4 is used to observe the state of sewage treatment and the position of the filter plate 203 when it descends.

[0050] At the beginning of the treatment process, the sewage in the first sewage treatment device is introduced into the secondary sewage treatment device 2 through the sewage inlet 202, and the sewage flows into the tank body 201. When the amount of sewage in the tank body 201 reaches a certain level, the staff adds flocculant into it through the sewage inlet 202.

[0051] Then, the electric push rod 212 is started, and its extended end begins to extend and pushes the filter plate 203 to slide downward along the inner wall of the tank body 201. During this process, as the filter plate 203 moves downward, the first gear 208 contacts the first rack 211, and the first rack 211 drives the first gear 208 to rotate, thereby driving the first rotating rod 206 to rotate, so that the rotating plate 207 rotates accordingly, and the torsion spring 209 is deformed by the force. At the same time, the downward movement of the filter plate 203 and the rotation of the rotating plate 207 work together to promote the mixing of the sewage and flocculant in the tank body 201, and the two are evenly mixed up and down through the through groove 205 and the filter hole 204.

[0052] When the filter plate 203 slides down until the first gear 208 is out of contact with the first rack 211, the torsion spring 209 recovers its deformation and pushes the rotating plate 207 back to its horizontal initial state. Then, as the extended end of the electric push rod 212 continues to extend, the filter plate 203 drives the first gear 208 to contact the first rack 211 again, and the above-mentioned rotation and mixing actions are repeated until the extended end of the electric push rod 212 reaches the first scale bar position on the scale value.

[0053] At this time, the extended end of the driving electric push rod 212 is retracted, driving the filter plate 203 to slide upward along the inner wall of the tank body 201, and the first gear 208 is contacted with the first rack 211 again and is driven to rotate, and the first rotating rod 206 and the rotating plate 207 also rotate accordingly, so that the sewage and the flocculant are further mixed, and the torsion spring 209 is compressed again. When the filter plate 203 moves up to the first gear 208 and the first rack 211 are separated, the torsion spring 209 restores its deformation to reset the rotating plate 207.

[0054] The extended end of the electric push rod 212 is operated in this cycle for three minutes to ensure that the impurities in the sewage are fully mixed with the flocculant. After three minutes, the extended end of the electric push rod 212 drives the filter plate 203 to the first scale bar position and stops running, so that the metal impurities in the sewage are precipitated under the condition of full mixing, laying a good foundation for the subsequent further treatment process.

[0055] Furthermore, after the metal impurities in the sewage are fully mixed with the flocculant and precipitated, the impurities and sewage will show obvious upper and lower stratification. However, in the actual treatment process, due to the influence of factors such as operation, it is easy for the sewage and the precipitated impurities to mix with each other again. This situation makes it more difficult to remove the metal impurities alone, which not only increases the complexity of the treatment process, but also reduces the treatment efficiency and effect.

[0056] like Figures 1 to 13As shown, the first cover plate 213 and the second cover plate 214 are slidably arranged on the surface of the filter plate 203, and they can perform relative sliding movement on the filter plate 203 to cover or expose a partial area of ​​the filter plate 203. A second rotating rod 215 is rotatably arranged on the filter plate 203, and the outer wall of the second rotating rod 215 is fixedly connected with a second gear 216. A second rack 217 is fixedly arranged on the side of the first cover plate 213 close to the second gear 216, and a third rack 218 is fixedly arranged on the side of the second cover plate 214 close to the second gear 216, and the second rack 217 and the third rack 218 are both meshed and connected with the second gear 216. The side of the second rack 217 close to the second cover plate 214 is slidably connected to the inner wall of the second cover plate 214, and the side of the third rack 218 close to the first cover plate 213 is slidably connected to the inner wall of the first cover plate 213. The second rotating rod 21 A slide groove 219 is provided on the outer wall of the can 201, and a third gear 220 is slidably provided on the inner wall of the slide groove 219. A convex piece 221 is fixedly provided on the side of the third gear 220 close to the slide groove 219. The convex piece 221 slidably cooperates with the slide groove 219, so that the third gear 220 can slide within a certain range in the slide groove 219, while maintaining a relative connection relationship with the second rotating rod 215, and a ring 300 is fixedly provided on the surface of the third gear. An extrusion piece 222 is rotatably provided at one end of the second rotating rod 215 away from the first cover plate 213 through a bearing, and the extrusion piece 222 is arranged in an inclined surface. A second support bar 223 is fixedly provided on the inner wall of the tank body 201, and a moving piece 224 is slidably provided on the inner wall of the second support bar 223. A first spring 225 is fixedly provided on the inner wall of the second support bar 223, and one end of the first spring 225 is fixedly connected to the moving piece 224.

[0057] like Figures 1 to 13 As shown, after the sewage in the tank 201 has completed sedimentation, the electric push rod 212 is started so that its protruding end continues to extend downward, and the electric push rod 212 pushes the filter plate 203 to move downward synchronously. When the filter plate 203 reaches the second scale bar position, the electric push rod 212 stops running. During this process, as the electric push rod 212 is driven, the filter plate 203 slides downward and pulls the second rotating rod 215 to move downward, thereby driving the extrusion piece 222 to move downward together.

[0058] When the filter plate 203 moves downward, the inclined surface of the extrusion member 222 contacts the moving member 224. As the filter plate 203 slides further downward, the inclined surface of the extrusion member 222 continues to exert an extrusion force on the moving member 224, forcing the moving member 224 to slide along the inner wall of the second support bar 223 toward the direction of the first spring 225. During this process, the moving member 224 squeezes the first spring 225. At the same time, the sliding of the moving member 224 drives the fourth rack 226 to move synchronously.

[0059] As the electric push rod 212 continues to push the filter plate 203 downward, the filter plate 203 drives the second rotating rod 215 to move downward continuously. When the filter plate 203 drops to a certain extent, the fourth rack 226 contacts the third gear 220. Due to the meshing action of the fourth rack 226 and the third gear 220, as the filter plate 203 continues to move downward, the protruding piece 221 on the third gear 220 slides along the slide groove 219. At the same time, the moving piece 224 drives the sliding of the fourth rack 226, prompting the fourth rack 226 to drive the third gear 220 to rotate. The rotation of the third gear 220 drives the second rotating rod 215 to rotate synchronously. The rotation of the second rotating rod 215 further drives the second gear 216 to rotate. The rotation of the second gear 216 acts on the second rack 217 and the third rack 218 respectively, causing the two to slide, thereby pushing the first cover plate 213 and the second cover plate 214 to slide toward the inner wall direction of the tank body 201.

[0060] It should be noted that when the inclined surface of the extrusion member 222 contacts the movable member 224 and applies pressure, the movable member 224 will slide and drive the fourth rack 226 to slide in the direction of the first spring 225. During this process, the filter plate 203 drives the second rotating rod 215 to continue to slide downward. As the second rotating rod 215 moves downward, the ring 300 on the third gear 220 will gradually contact the surface of the fourth rack 226 and finally fall on the fourth rack 226.

[0061] When the fourth rack 226 continues to slide, it will mesh with the third rack 218, thereby driving the third gear 220 to rotate. At the same time, the second rotating rod 215 continues to slide downward. During this process, the protrusion 221 on the third gear 220 will slide along the sliding groove 219 on the second rotating rod 215, so that the downward sliding of the second rotating rod 215 will not affect the continuous meshing of the third gear 220 and the fourth rack 226.

[0062] When the fourth rack 226 slides to the end position toward the first spring 225 , the ring 300 on the third gear 220 still rests on the surface of the fourth rack 226 , and the third gear 220 and the fourth rack 226 still maintain a meshing state.

[0063] When the second rotating rod 215 slides upward to reset, the moving member 224 will drive the fourth rack 226 to slide in the direction away from the first spring 225. During this process, the fourth rack 226 will drive the third gear 220 to reverse. When the engagement of the fourth rack 226 with the third gear 220 ends until the two are no longer engaged, due to its own weight, the third gear 220 will slide downward along the slide groove 219 on the second rotating rod 215 until it reaches the lowermost position of the slide groove 219.

[0064] As the extended end of the electric push rod 212 continues to slide downward, the moving member 224, under the continuous extrusion of the extrusion member 222, always drives the fourth rack 226 to rotate the third gear 220. The second rotating rod 215, driven by the rotation of the third gear 220, continuously drives the second rack 217 and the third rack 218, so that the first cover plate 213 and the second cover plate 214 continue to slide toward the inner wall of the tank body 201. During this period, the sewage at the bottom of the tank body 201 is gradually squeezed out through the filter hole 204.

[0065] Until the filter plate 203 continues to slide downward until the extrusion piece 222 squeezes the moving piece 224 to the end position of the inner wall of the second support bar 223, the fourth rack 226 drives the third gear 220 to rotate and drives the second gear 216 to completely open the second rack 217 and the third rack 218. At this time, the first cover plate 213 and the second cover plate 214 just completely cover the filter holes 204 and the through grooves 205 on the filter plate 203, thereby realizing a clear stratified state in which the upper part of the tank body 201 is sewage and the lower part is impurities, creating favorable conditions for the subsequent separate treatment of sewage and impurities.

[0066] like Figures 1 to 16 As shown, a sewage outlet 227 is provided at the bottom of the tank body 201, a first support frame 228 is fixedly provided on the inner wall of the tank body 201, a plug 230 is fixedly connected to the outer wall of the slide bar 229, a sealing ring is fixedly provided on the outer wall of the plug 230, the plug 230 can slide on the inner wall of the first support frame 228, and the plugging and opening operations of the sewage outlet 227 are realized by the displacement of the slide bar 229. The plug 230 is made of a corrosion-resistant material that is compatible with the material of the tank body 201, such as rubber or special plastic, to ensure that it can maintain good sealing performance in the process of long-term contact with sewage and impurities to prevent sewage leakage. The inner wall of the tank body 201 is located on the first support frame 228. A second support frame 231 is fixedly set on one side of 28, and the second support frame 231 provides a rotation support point for the third rotating rod 232. Through grooves are equidistantly opened on the first support frame 228 and the second support frame 231, so that when impurities are discharged, sewage and impurities can flow into the sewage pipe 235 through the through grooves and be discharged, ensuring that the third rotating rod 232 can rotate stably on its inner wall. The outer wall of the third rotating rod 232 is fixedly connected with a top plate 233, and the side of the top plate 233 close to the sliding rod 229 is slidably connected to the outer wall of the sliding rod 229 through a sliding hole. A second spring 234 is fixedly set at the bottom of the tank body 201, and one end of the second spring 234 is fixedly connected to the top plate 233.

[0067] When it comes to processing impurities deposited in the lower part of the tank body 201, the electric push rod 212 is first started to extend its protruding end, and the protruding end of the electric push rod 212 pushes the filter plate 203 to move downward synchronously until it reaches the third scale bar position, and then the drive of the electric push rod 212 is stopped.

[0068] As the extended end of the electric push rod 212 drives the filter plate 203 to slide downward, the extrusion member 222 on the filter plate 203 moves synchronously and applies an extrusion force to the moving member 224. When this process continues, the extrusion member 222 contacts and interacts with the top plate 233, pushing the top plate 233 to rotate downward around its rotation axis. The downward rotation of the top plate 233 squeezes the second spring 234, causing the second spring 234 to be gradually compressed and deformed.

[0069] As the top plate 233 continues to rotate downward, the sliding rod 229 connected thereto will slide upward along the inner wall of the first support frame 228 under the push of the top plate 233. Since the plug 230 is fixed to the outer wall of the sliding rod 229, the upward sliding movement of the sliding rod 229 will drive the plug 230 to move upward together, thereby gradually opening the sewage outlet 227 originally blocked by the plug 230, and the impurities deposited in the lower part of the tank body 201 can be smoothly discharged from the tank body 201 through the sewage outlet 227 under the action of gravity, thereby achieving the purpose of cleaning and discharging the impurities.

[0070] like Figures 1 to 16 As shown, considering that the impurities precipitated in the lower part of the tank body 201 contain sewage and will also be discharged, a sewage pipe 235 is connected to the sewage outlet 227, and a partition 236 is fixedly arranged inside the sewage pipe 235. A plurality of through holes 237 are evenly and equidistantly opened on the partition 236. At the same time, the inner wall of the sewage pipe 235 is fixedly connected with a drainage pipe 238 and a sewage pipe 239, respectively. Two collecting boxes 240 are placed under the tank body 201. The two collecting boxes 240 can effectively collect the impurities discharged from the drainage pipe 238 and the sewage flowing out of the sewage pipe 239, thereby realizing the preliminary separation of impurities and sewage, so as to facilitate their subsequent more detailed and targeted treatment, reduce the adverse effects that may be caused by mutual mixing, and improve the treatment efficiency and resource recovery rate of the entire sewage treatment system.

[0071] When sewage and impurities are discharged from the sewage pipe 235, the partition 236 plays a key role. The impurities are effectively blocked by the partition 236 due to their large particles, while the sewage can be discharged smoothly through the through holes 237 on the partition 236 due to its fluidity. The impurities intercepted by the partition 236 will then be guided by the sewage pipe 235 and discharged into a corresponding collection box 240 through the discharge pipe 238; at the same time, the sewage passing through the through holes 237 of the partition 236 will be poured into another collection box 240 specially used for collecting sewage, thereby achieving a preliminary separation of sewage and impurities, providing convenient conditions for subsequent separate treatments, and helping to improve the orderliness and efficiency of the overall sewage treatment process.

[0072] When the impurities in the tank body 201 are discharged, the electric push rod 212 is started to retract its extended end until it is reset. During this process, the extended end of the electric push rod 212 drives the filter plate 203 to move upward synchronously, and the filter plate 203 then drives the extrusion piece 222 to retract together. As the filter plate 203 slides upward, the extrusion piece 222 gradually breaks away from the contact with the top plate 233. At this time, the originally compressed second spring 234 recovers its deformation due to the disappearance of the extrusion effect, pushing the top plate 233 back to its initial position. During the resetting process, the top plate 233 drives the slide bar 229 to reset synchronously, so that the plug 230 on the slide bar 229 can effectively block the sewage outlet 227 again to prevent accidental leakage of liquid in the tank body 201.

[0073] At the same time, as the extrusion piece 222 returns to its original position, the first spring 225 in a compressed state on the moving piece 224 also begins to gradually recover its deformation, and generates elastic force to push the moving piece 224 to slide in the direction of the extrusion piece 222. The sliding of the moving piece 224 drives the fourth rack 226 to move synchronously, thereby driving the third gear 220 to reverse. The reversal of the third gear 220 drives the second rotating rod 215 to reverse accordingly. The reversal of the second rotating rod 215 drives the second gear 216 to rotate in the opposite direction. The reversal action of the second gear 216 acts on the second rack 217 and the third rack 218, causing them to reverse respectively, thereby prompting the first cover plate 213 and the second cover plate 214 to slide in opposite directions.

[0074] As the filter plate 203 continues to slide upward, when the first cover plate 213 and the second cover plate 214 are fully reset, the sewage in the upper layer of the tank body 201 flows into the bottom area again under the action of gravity, thereby realizing the readjustment of the sewage and the spatial layout in the tank body 201. When the filter plate 203 is fully reset, the entire device enters a standby state, waiting for sewage to be added to the tank body 201 again. Once the amount of sewage reaches the predetermined treatment standard amount, the above series of operation processes can be repeated to continuously treat the sewage, thereby ensuring the cyclicity and stability of the sewage treatment process and effectively improving the efficiency and quality of sewage treatment.

[0075] The working principle of the technical solution provided by the present invention is as follows: at the initial stage of the treatment process, the sewage in the first sewage treatment device is introduced into the secondary sewage treatment device 2 through the sewage inlet 202, and the sewage flows into the tank body 201. When the amount of sewage in the tank body 201 reaches a certain level, the staff adds flocculant therein through the sewage inlet 202.

[0076] Then, the electric push rod 212 is started, and its extended end begins to extend and pushes the filter plate 203 to slide downward along the inner wall of the tank body 201. During this process, as the filter plate 203 moves downward, the first gear 208 contacts the first rack 211, and the first rack 211 drives the first gear 208 to rotate, thereby driving the first rotating rod 206 to rotate, so that the rotating plate 207 rotates accordingly, and the torsion spring 209 is deformed by the force. At the same time, the downward movement of the filter plate 203 and the rotation of the rotating plate 207 work together to promote the mixing of the sewage and flocculant in the tank body 201, and the two are evenly mixed up and down through the through groove 205 and the filter hole 204.

[0077] When the filter plate 203 slides down until the first gear 208 is out of contact with the first rack 211, the torsion spring 209 recovers its deformation and pushes the rotating plate 207 back to its horizontal initial state. Then, as the extended end of the electric push rod 212 continues to extend, the filter plate 203 drives the first gear 208 to contact the first rack 211 again, and the above-mentioned rotation and mixing actions are repeated until the extended end of the electric push rod 212 reaches the first scale bar position on the scale value.

[0078] At this time, the extended end of the driving electric push rod 212 is retracted, driving the filter plate 203 to slide upward along the inner wall of the tank body 201, and the first gear 208 is contacted with the first rack 211 again and is driven to rotate, and the first rotating rod 206 and the rotating plate 207 also rotate accordingly, so that the sewage and the flocculant are further mixed, and the torsion spring 209 is compressed again. When the filter plate 203 moves up to the first gear 208 and the first rack 211 are separated, the torsion spring 209 restores its deformation to reset the rotating plate 207.

[0079] The extended end of the electric push rod 212 is operated in this cycle for three minutes to ensure that the impurities in the sewage are fully mixed with the flocculant. After three minutes, the extended end of the electric push rod 212 drives the filter plate 203 to the first scale bar position and stops running, so that the metal impurities in the sewage are precipitated under the condition of full mixing, laying a good foundation for the subsequent further treatment process.

[0080] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0081] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laboratory sewage treatment device, comprising a primary sewage treatment device, characterized in that: A secondary sewage treatment device is also provided on one side of the primary sewage treatment device, the primary sewage treatment device is used for conducting sewage treatment experiments in the laboratory, and the secondary sewage treatment device is used for further treating the sewage treated by the primary sewage treatment device, and the secondary sewage treatment device includes a tank body and a sewage inlet connected to the top of the tank body; The inner wall of the tank body is slidably provided with a filter plate, the surface of the filter plate is provided with a plurality of filter holes, the surface of the filter plate is provided with a plurality of through grooves, the inner wall of the through groove is rotatably provided with a first rotating rod, the outer wall of the first rotating rod is fixedly provided with a rotating plate, the outer wall of the first rotating rod is fixedly provided with a first gear, the end of the first rotating rod away from the first gear is sleeved with a torsion spring, one end of the torsion spring is fixed to the rotating plate, and the other end of the torsion spring is fixed to the through groove, a plurality of first support bars are fixedly provided on the inner wall of the tank body, a plurality of first racks are equidistantly provided on the first support bar, an electric push rod is fixedly provided on the top of the tank body, and the protruding end of the electric push rod is fixed to the filter plate; The surface of the filter plate is slidably provided with a first cover plate and a second cover plate, the filter plate is rotatably provided with a second rotating rod, the outer side wall of the second rotating rod is fixedly provided with a second gear, a second rack is fixedly provided on a side of the first cover plate close to the second gear, a third rack is fixedly provided on a side of the second cover plate close to the second gear, the second rack and the third rack are both meshed and connected with the second gear, a side of the second rack close to the second cover plate is slidably connected to an inner wall of the second cover plate, and a side of the third rack close to the first cover plate is slidably connected to an inner wall of the first cover plate; The outer wall of the second rotating rod is provided with a sliding groove, the inner wall of the sliding groove is slidably provided with a third gear, a convex piece is fixedly provided on the side of the third gear close to the sliding groove, the convex piece slides with the sliding groove, an extrusion piece is rotatably provided on the end of the second rotating rod away from the first cover plate through a bearing, a second supporting bar is fixedly provided on the inner wall of the tank body, a moving piece is slidably provided on the inner wall of the first supporting bar, a first spring is fixedly provided on the inner wall of the supporting bar, one end of the first spring is fixed to the moving piece, and a fourth rack is fixedly provided on one side of the moving piece; The bottom of the tank body is provided with a sewage outlet, the inner wall of the tank body is fixedly provided with a first support frame, the inner wall of the first support frame is slidably provided with a sliding rod, the outer wall of the sliding rod is fixedly provided with a plug, and the plug is used to block the sewage outlet, the inner wall of the tank body is located on a side of the first support frame and a second support frame is fixedly provided, the inner wall of the second support frame is rotatably provided with a third rotating rod, the outer wall of the third rotating rod is fixedly provided with a top plate, the bottom of the tank body is fixedly provided with a second spring, one end of the second spring is fixed to the top plate, and the side of the top plate close to the sliding rod is slidably connected with the outer wall of the sliding rod through a sliding hole; The sewage outlet is fixedly connected to a sewage pipe, a partition is fixedly provided on the inner wall of the sewage pipe, through holes are equidistantly provided on the partition, a miscellaneous pipe is fixedly connected to the inner wall of the sewage pipe, a sewage pipe is fixedly connected to the inner wall of the sewage pipe, and two collecting boxes are provided under the tank body, and the two collecting boxes are respectively used to collect the miscellaneous pipe and the sewage pipe.

2. The laboratory sewage treatment device according to claim 1, characterized in that: The primary sewage treatment device includes a box body, a magnetic stirring device is arranged on the surface of the box body, a plurality of semiconductor refrigeration fins are arranged at equal intervals on the inner wall of the box body, a cooling fan for controlling the temperature inside the box body is also arranged on the inner wall of the box body, and a control panel for controlling the rotation speed and temperature of the magnetic stirring device is also installed on one side of the box body.

3. The laboratory sewage treatment device according to claim 1, characterized in that: The extrusion piece is arranged in an inclined surface.

4. The laboratory sewage treatment device according to claim 1, characterized in that: A sealing ring is fixedly arranged on the outer side wall of the plug.

5. The laboratory sewage treatment device according to claim 1, characterized in that: The first support frame and the second support frame are both provided with through slots at equal intervals.

6. The laboratory sewage treatment device according to claim 1, characterized in that: One side of the tank body is provided with scale lines at equal intervals.

7. The laboratory sewage treatment device according to claim 1, characterized in that: An observation window is provided on one side of the tank body close to the scale line.

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