Wastewater treatment equipment for laboratory

Abstract

The invention relates to the technical field of wastewater treatment, in particular to laboratory wastewater treatment equipment which comprises a treatment box, a conveying mechanism for conveying chemicals into the treatment box, a stirring mechanism for stirring and mixing wastewater and chemicals in the treatment box, and a pretreatment mechanism for filtering wastewater entering the treatment box, the stirring mechanism comprises a stirring part, a driving unit for driving the stirring part to rotate while vertically move, a movable shell, a movable rod fixedly mounted on the movable shell, and a linkage part for driving the movable shell to axially move. According to the device disclosed by the invention, through the arrangement of the stirring mechanism, wastewater and a medicament can be transversely and vertically stirred, so that the wastewater and the medicament can be more sufficiently mixed, the mixing uniformity is improved, the wastewater and the medicament are further sufficiently contacted and reacted, and the purification effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to wastewater treatment equipment for laboratories. Background Art

[0002] Water treatment refers to the process of removing suspended matter, organic matter, heavy metal ions, pathogens and other harmful components from domestic sewage, industrial wastewater and other wastewater containing pollutants through a series of physical, chemical or biological methods, so as to improve the water quality and meet national emission standards or reuse requirements.

[0003] With the development of science and technology in China, the demand for laboratories is increasing. Especially in the past decade, the number of laboratories of various types has continued to increase. For laboratories for drug or food testing, the amount of water used is relatively large. In order to avoid the environmental impact of laboratory wastewater, laboratory wastewater must be treated to meet discharge standards before it can be discharged.

[0004] A Chinese patent with application number CN202220444795.5 discloses a wastewater treatment and purification equipment for a physical and chemical laboratory, including a base, on which a liquid collecting box, a neutralization barrel, and a sedimentation tank are installed in sequence; the liquid collecting box is connected to the neutralization barrel through a liquid extraction pipe, and a liquid extraction pump is installed on the liquid extraction pipe; a dosing funnel is fixed on the top of the neutralization barrel, and the neutralization barrel is connected to the sedimentation tank through a liquid outlet pipe, and a valve is installed on the liquid outlet pipe; a support frame is fixed on the base, and a stirring mechanism is fixed on the support frame, and the stirring mechanism includes a stirring part, and the stirring part is located in the neutralization barrel; a barrel cover is installed on the top of the neutralization barrel, and a first telescopic rod is fixed on both sides of the top of the barrel cover, and the end of the first telescopic rod is fixedly connected to the support frame; a power piece is installed on the support frame, and the stirring part and the power piece are matched in transmission. The utility model collects experimental waste liquid through a liquid collecting box and discharges it after neutralization and precipitation. It is easy to operate and has strong feasibility, which solves the problem of difficulty in implementing experimental wastewater treatment in the past.

[0005] However, when the above patent mixes the wastewater and the reagent, since the stirring mechanism can only move in the vertical direction, it is easy to cause uneven mixing of the wastewater and the reagent, resulting in the wastewater being unable to fully react with the reagent, thereby reducing the purification effect of the wastewater.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the invention

[0007] The purpose of the present invention is to provide a laboratory wastewater treatment equipment which can effectively solve the above technical problems.

[0008] In order to achieve the purpose of the present invention, the following technical scheme is adopted: A laboratory wastewater treatment device, comprising: a treatment box, a conveying mechanism for conveying a reagent into the treatment box, a stirring mechanism for stirring and mixing the wastewater and the reagent in the treatment box, and a pretreatment mechanism for filtering the wastewater entering the treatment box; The stirring mechanism comprises: a stirring member, a driving unit driving the stirring member to rotate and move vertically, a movable shell, a movable rod fixedly mounted on the movable shell, a linkage member driving the movable shell to move axially, a fixed tube fixedly mounted on the processing box, a guide groove provided in the fixed tube, and a rolling member rotatably mounted on the movable rod; the rolling member rolls in the guide groove; The driving unit includes: a long shaft rotatably mounted on the processing box, a driven bevel gear fixedly sleeved on the long shaft, a driving bevel gear meshingly connected to the driven bevel gear, a power source for driving the driving bevel gear to rotate, a reciprocating thread opened on the long shaft, a moving plate threadedly connected to the long shaft, and a mounting frame fixedly mounted on the moving plate; the stirring element is rotatably mounted on the mounting frame.

[0009] Furthermore, the stirring member includes: a stirring shaft rotatably mounted on the mounting frame, a stirring blade fixedly mounted on the stirring shaft, and a limiting strip fixedly mounted on the stirring shaft; a mounting groove and a limiting groove are opened on the long shaft, the limiting groove is connected to the mounting groove, and the stirring shaft is slidably mounted in the mounting groove, and the limiting strip slides in the limiting groove.

[0010] Furthermore, the linkage member includes: a transmission gear, a horizontal rack and a vertical rack respectively meshed with the transmission gear.

[0011] Furthermore, the conveying mechanism includes: a capsule body fixedly installed between the processing box and the movable plate, a medicine box fixedly installed on the processing box, a liquid outlet head connected to the movable shell, a liquid inlet pipe connecting the capsule body and the medicine box, and a liquid outlet pipe connecting the capsule body and the movable shell; the liquid outlet end of the liquid outlet pipe is rotatably connected to the movable shell.

[0012] Furthermore, the pretreatment mechanism includes: a filter box 1 fixedly installed on the treatment box, a filter box 2 plugged into the filter box 1, a filter assembly fixedly installed in the filter box 2, and an annular filter fixedly installed between the filter box 1 and the filter box 2; a liquid inlet opening is opened on the treatment box, and the liquid inlet opening is connected to the filter box 1.

[0013] Furthermore, the filter assembly comprises: a filter screen, a mounting unit for mounting the filter screen, a front cleaning member for cleaning a liquid inlet side of the filter screen, and a rear cleaning member for cleaning a liquid outlet side of the filter screen; The installation unit includes: an installation frame fixedly installed in the second filter box, an annular groove opened on the installation frame, an annular plate movably installed in the annular groove, and a linkage spring fixedly installed between the annular plate and the annular groove; the annular plate is fixedly sleeved on the filter net.

[0014] Furthermore, the front cleaning member includes: a connecting shell fixedly mounted on the long axis, a scraper movably mounted in the connecting shell, a baffle fixedly mounted on the connecting shell, and a connecting spring fixedly mounted between the scraper and the connecting shell.

[0015] Furthermore, the rear cleaning member includes: a cleaning cylinder rotatably mounted on the long shaft, a linkage bevel gear coaxially connected to the cleaning cylinder, and a bevel gear ring meshingly connected to the linkage bevel gear.

[0016] Furthermore, the stirring mechanism also includes: a linkage gear fixedly mounted on the liquid outlet head, a fixed gear ring meshingly connected to the linkage gear, and a connecting plate fixedly mounted on the liquid outlet head; the liquid outlet head is rotatably mounted on the movable shell.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention discloses a laboratory wastewater treatment device, which can stir wastewater and a reagent horizontally and vertically by setting a stirring mechanism, so that the wastewater and the reagent can be mixed more fully, the mixing uniformity is improved, and then the wastewater and the reagent are fully contacted and reacted, thereby improving the purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] Figure 1 It is a three-dimensional schematic diagram of a laboratory wastewater treatment device of the present invention; Figure 2 It is a cross-sectional schematic diagram of a component treatment box of a laboratory wastewater treatment equipment of the present invention; Figure 3 It is a cross-sectional schematic diagram of a filter box, a component of a laboratory wastewater treatment equipment of the present invention; Figure 4 It is a three-dimensional schematic diagram of a component capsule of a laboratory wastewater treatment device of the present invention; Figure 5 It is a three-dimensional schematic diagram of a stirring blade as a component of a laboratory wastewater treatment equipment of the present invention; Figure 6 The present invention is a laboratory wastewater treatment equipment Figure 5 Enlarged view of point A in the middle; Figure 7 The present invention is a laboratory wastewater treatment equipment Figure 5 Enlarged view of point B in the middle; Figure 8 The present invention is a laboratory wastewater treatment equipment Figure 5 Enlarged view of point C in the middle; Fig. 9 The present invention is a laboratory wastewater treatment equipment Figure 5 Enlarged view of point D in the middle; Fig.10 It is a schematic diagram of a long-axis cross-sectional view of components of a laboratory wastewater treatment device of the present invention; Fig.11 It is a cross-sectional schematic diagram of a filter box of a component of a laboratory wastewater treatment equipment of the present invention; Fig.12 It is a cross-sectional schematic diagram of a ring filter as a component of a laboratory wastewater treatment equipment of the present invention; Fig.13 It is a three-dimensional schematic diagram of a filter screen component of a laboratory wastewater treatment equipment of the present invention; Fig.14 It is a cross-sectional schematic diagram of a component installation frame of a laboratory wastewater treatment equipment of the present invention; Fig.15 The present invention is a laboratory wastewater treatment equipment Fig.14 Enlarged view of point E in the middle; Fig.16 The present invention is a schematic cross-sectional view of a component connection shell of a laboratory wastewater treatment device.

[0020] In the figure: 1. Processing box; 2. Stirring mechanism; 21. Vertical stirring assembly; 211. Stirring member; 2111. Stirring shaft; 2112. Stirring blade; 2113. Limiting bar; 212. Driving unit; 2121. Power source; 2122. Active bevel gear; 2123. Driven bevel gear; 2124. Long shaft; 2125. Moving plate; 2126. Slide bar; 2127. Mounting frame; 22. Horizontal stirring assembly; 221, axial stirring unit; 2211, movable shell; 2212, linkage; 22121, transverse rack; 22122, vertical rack; 22123, transmission gear; 2213, guide; 22131, movable frame; 22132, movable plate; 22133, fixed plate; 22134, guide groove; 2214, movable rod; 222, circumferential stirring unit; 2221, fixed pipe; 222 2. guide groove; 2223. rolling element; 23. fixed gear ring; 24. linkage gear; 25. connecting plate; 3. pretreatment mechanism; 31. filter box 1; 32. filter box 2; 33. filter assembly; 331. filter screen; 332. mounting unit; 3321. mounting frame; 3322. annular plate; 3323. linkage spring; 333. front cleaning element; 3331. connecting shell; 3332. scraper; 3 333. Baffle; 3334. Connecting spring; 334. Rear cleaning member; 3341. Cleaning cylinder; 3342. Interlocking bevel gear; 3343. Bevel gear ring; 34. Annular filter; 35. Liquid inlet opening; 4. Conveying mechanism; 41. Capsule; 42. Medicine box; 43. Liquid inlet pipe; 44. Liquid outlet pipe; 45. Liquid outlet head; 5. Arc plate; 6. Feed pipe; 7. Discharge pipe; 8. Discharge opening; 9. Interlocking plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present invention, rather than all embodiments.

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 16 As shown, the present invention is a laboratory wastewater treatment equipment, comprising: a treatment box 1, the treatment box 1 is connected to a discharge pipe 7, the purified water can be discharged through the discharge pipe 7, a conveying mechanism 4 for conveying a reagent into the treatment box 1, a stirring mechanism 2 for stirring and mixing the wastewater and the reagent in the treatment box 1, and a pretreatment mechanism 3 for filtering the wastewater entering the treatment box 1.

[0024] The stirring mechanism 2 includes: a vertical stirring assembly 21 and a horizontal stirring assembly 22; the vertical stirring assembly 21 includes: a stirring member 211 and a driving unit 212 that drives the stirring member 211 to rotate and move vertically; The driving unit 212 includes: a long shaft 2124 rotatably mounted on the processing box 1, a driven bevel gear 2123 fixedly mounted on the long shaft 2124, an active bevel gear 2122 meshingly connected to the driven bevel gear 2123, a power source 2121 for driving the active bevel gear 2122 to rotate, a reciprocating thread opened on the long shaft 2124, a moving plate 2125 threadedly connected to the long shaft 2124, a mounting frame 2127 fixedly mounted on the moving plate 2125, and a slide bar 2126 fixedly mounted on the moving plate 2125; the stirring member 211 is rotatably mounted on the mounting frame 2127, a slide groove is opened in the processing box 1, and the slide bar 2126 slides in the slide groove.

[0025] When the wastewater and the reagent are stirred and mixed, the power source 2121 is started to drive the active bevel gear 2122 to rotate, and the active bevel gear 2122 drives the driven bevel gear 2123 to rotate, thereby driving the long shaft 2124 to rotate, and the sliding bar 2126 and the sliding groove limit the movable plate 2125, so that the movable plate 2125 moves back and forth along the axial direction of the long shaft 2124, and the mounting frame 2127 is driven to move back and forth along the axial direction of the long shaft 2124 through the movable plate 2125, thereby driving the stirring member 211 to move back and forth along the axial direction of the long shaft 2124, that is, to move vertically.

[0026] The stirring member 211 includes: a stirring shaft 2111 rotatably mounted on a mounting frame 2127, a stirring blade 2112 fixedly mounted on the stirring shaft 2111, and a limiting strip 2113 fixedly mounted on the stirring shaft 2111; a mounting groove and a limiting groove are provided on the long shaft 2124, the limiting groove is connected to the mounting groove, and the stirring shaft 2111 is slidably mounted in the mounting groove, and the limiting strip 2113 slides in the limiting groove.

[0027] When the stirring member 211 moves back and forth along the axial direction of the long axis 2124, the stirring shaft 2111 drives the limit bar 2113 to slide in the limit groove. At the same time, the limit bar 2113 is driven to rotate through the long axis 2124, the limit bar 2113 drives the stirring shaft 2111 to rotate, and the stirring shaft 2111 drives the stirring blade 2112 to rotate, so that the stirring blade 2112 rotates along the circumferential direction of the long axis 2124.

[0028] In the present invention, by setting the vertical stirring assembly 21, the stirring member 211 can be rotated and moved vertically, thereby realizing vertical stirring and mixing of wastewater and chemicals, improving the mixing effect of wastewater and chemicals, and further improving the purification effect of wastewater.

[0029] It is added here that the power source 2121 is preferably an electric motor.

[0030] The lateral stirring assembly 22 includes: an axial stirring unit 221 and a circumferential stirring unit 222; the axial stirring unit 221 includes: a movable shell 2211, a movable rod 2214 fixedly mounted on the movable shell 2211, a linkage 2212 for driving the movable shell 2211 to move axially, and a guide member 2213 for guiding the movable shell 2211 when moving axially; the guide member 2213 includes: a movable frame 22131 rotatably mounted with the movable rod 2214, a movable plate 22132 fixedly mounted on the movable frame 22131, A fixed plate 22133 fixedly installed in the processing box 1, and a guide groove 22134 opened on the fixed plate 22133; the movable plate 22132 slides in the guide groove 22134; the connecting member 2212 includes: a transmission gear 22123 rotatably installed on the fixed plate 22133, a horizontal rack 22121 and a vertical rack 22122 respectively meshing with the transmission gear 22123; the horizontal rack 22121 is fixedly connected to the movable frame 22131, and the vertical rack 22122 is fixedly connected to the movable plate 2125.

[0031] When the movable plate 2125 drives the mounting frame 2127 to move back and forth along the axial direction of the long axis 2124, it can drive the vertical rack 22122 to move back and forth up and down, the vertical rack 22122 drives the transmission gear 22123 to rotate forward and reverse, and the transmission gear 22123 drives the horizontal rack 22121 to move back and forth left and right, thereby making the two movable shells 2211 approach or move away from each other.

[0032] When the movable shell 2211 moves, it can drive the movable rod 2214 to move, the movable rod 2214 can drive the movable frame 22131 to move, and the movable frame 22131 can drive the movable plate 22132 to slide in the guide groove 22134. Through the mutual cooperation between the movable plate 22132 and the guide groove 22134, the movable frame 22131 can be limited when moving, and then the movable shell 2211 can be limited when moving, so that the movable shell 2211 moves axially along the movable rod 2214, thereby realizing axial stirring of the treatment solution.

[0033] In the present invention, by moving the two movable shells 2211 closer to or farther away from each other, the treatment solution can be axially stirred, so that the mixed liquid of the agent and the wastewater produces convection, and then the agent and the wastewater continue to flow and penetrate each other, so that the agent and the wastewater are fully in contact and react, further improving the purification effect of the wastewater.

[0034] The circumferential stirring unit 222 includes: a fixed tube 2221 fixedly mounted on the processing box 1, a guide groove 2222 opened in the fixed tube 2221, and a rolling member 2223 rotatably mounted on the movable rod 2214; the rolling member 2223 rolls in the guide groove 2222; the movable rod 2214 is movably mounted in the fixed tube 2221.

[0035] When the movable rod 2214 moves, it can drive the rolling element 2223 to roll in the guide groove 2222. Since the guide groove 2222 is spiral, the movable rod 2214 can rotate along the circumference of the fixed tube 2221 under the guidance of the path of the guide groove 2222. The movable rod 2214 drives the movable shell 2211 to rotate along the circumference of the fixed tube 2221, thereby realizing circumferential stirring of the treated solution and further improving the purification effect of the wastewater.

[0036] It is added here that the rolling element 2223 is preferably a bull's eye ball.

[0037] In the present invention, the axial stirring unit 221 and the circumferential stirring unit 222 cooperate with each other to achieve axial stirring and circumferential stirring of the wastewater and the reagent, so that the wastewater and the reagent are fully in contact and react with each other, thereby improving the purification effect.

[0038] The conveying mechanism 4 includes: a capsule 41 fixedly installed between the processing box 1 and the movable plate 2125, a medicine box 42 fixedly installed on the processing box 1, and a liquid outlet head 45 connected to the movable shell 2211. There are several liquid outlet heads 45, which are evenly distributed in a ring shape on the corresponding movable shell 2211, and a liquid inlet pipe 43 connecting the capsule 41 and the medicine box 42; a one-way valve 1 is installed on the liquid inlet pipe 43, and a liquid outlet pipe 44 connecting the capsule 41 and the movable shell 2211, and a one-way valve 2 is installed on the liquid outlet pipe 44; the liquid outlet end of the liquid outlet pipe 44 is rotatably connected to the movable shell 2211.

[0039] When the movable plate 2125 drives the mounting frame 2127 to move back and forth along the axial direction of the long axis 2124, the capsule 41 can be compressed and restored. When the movable plate 2125 moves downward, the capsule 41 can be restored. At this time, the one-way valve 1 is opened and the one-way valve 2 is closed. During the restoration of the capsule 41, the medicine in the medicine box 42 can be sucked into the capsule 41 through the liquid inlet pipe 43. When the movable plate 2125 moves upward, the capsule 41 can be compressed. At this time, the one-way valve 1 is closed and the one-way valve 2 is opened. The medicine in the capsule 41 is squeezed and flows into the movable shell 2211 through the liquid outlet pipe 44 and is sprayed out through the liquid outlet head 45, so that the medicine is transported into the wastewater to purify the wastewater.

[0040] The reciprocating movement of the movable plate 2125 can drive the capsule 41 to compress and recover, thereby realizing automatic delivery of the medicine without manual addition, saving time and effort.

[0041] In addition, the reagent delivery and stirring are carried out synchronously, and the reagent is directly delivered to the inside of the wastewater, thereby facilitating better mixing of the wastewater and the reagent.

[0042] The stirring mechanism 2 also includes: a linkage gear 24 fixedly mounted on the liquid discharge head 45, a fixed gear ring 23 fixedly mounted on the movable frame 22131, and a connecting plate 25 fixedly mounted on the liquid discharge head 45; the liquid discharge head 45 is rotatably mounted on the movable shell 2211, and the linkage gear 24 and the fixed gear ring 23 are meshed with each other.

[0043] When the movable shell 2211 rotates along the circumferential direction of the fixed tube 2221, the liquid discharge head 45 can be driven to rotate along the circumferential direction of the fixed tube 2221, and the liquid discharge head 45 drives the interlocking gear 24 to rotate along the circumferential direction of the fixed tube 2221. Since the fixed gear ring 23 and the interlocking gear 24 are meshed with each other, the interlocking gear 24 rotates along the circumferential direction of the fixed tube 2221 while rotating on its own, thereby driving the liquid discharge head 45 to rotate along the circumferential direction of the fixed tube 2221 while rotating on its own, so that the connecting plate 25 can achieve the circumferential rotation along the fixed tube 2221 while rotating on its own.

[0044] The connecting plate 25 realizes the circumferential rotation and self-rotation of the fixed pipe 2221. On the one hand, it can play a role of circumferential stirring on the wastewater and the agent, so that the wastewater and the agent form a continuous circulation flow in the circumferential direction, so that the wastewater and the agent can be mixed more fully, and the mixing uniformity is improved, thereby allowing the wastewater and the agent to fully contact and react, and further improve the purification effect; on the other hand, the agent is distributed over a wide range in the wastewater, thereby increasing the contact area between the wastewater and the agent, and thereby improving the stirring efficiency.

[0045] In the present invention, by setting the stirring mechanism 2, the wastewater and the agent can be stirred horizontally and vertically, so that the wastewater and the agent can be mixed more fully, the mixing uniformity is improved, and then the wastewater and the agent are fully contacted and reacted, the purification effect is improved, and the problem that the stirring mechanism 2 in the prior art can only move in the vertical direction, which easily leads to uneven mixing of the wastewater and the agent, thereby causing the wastewater to be unable to fully react with the agent, reducing the purification effect of the wastewater is solved.

[0046] As a further extension of the present invention, the wastewater in the laboratory for drug or food testing carries a certain amount of water-insoluble substances. Before the wastewater enters the treatment box 1, the water-insoluble substances in the wastewater need to be filtered to avoid the water-insoluble substances from being entangled on the stirring mechanism 2 and affecting the stirring effect of the stirring mechanism 2, and to avoid the water-insoluble substances from affecting the mixing effect of the medicine and the wastewater. Therefore, it is necessary to pretreat the laboratory wastewater.

[0047] The pretreatment mechanism 3 includes: a filter box 1 31 fixedly installed on the treatment box 1, a filter box 2 32 plugged and installed in the filter box 1 31, a feed pipe 6 is connected to the filter box 2 32, a certain amount of laboratory wastewater can be transported to the filter box 2 32 through the feed pipe 6, a filter assembly 33 fixedly installed in the filter box 2 32, and an annular filter screen 34 fixedly installed between the filter box 1 31 and the filter box 2 32; a liquid inlet opening 35 is opened on the treatment box 1, and the liquid inlet opening 35 is connected to the filter box 1 31.

[0048] When wastewater enters the filter box 2 32 through the feed pipe 6, the water-insoluble substances in the wastewater can be filtered through the setting of the filter assembly 33, so as to prepare for the subsequent mixing of the wastewater and the reagent; the filter assembly 33 includes: a filter screen 331, the filter screen 331 is sleeved on the outside of the long axis 2124, and the filter screen 331 can slide along the axial direction of the long axis 2124, a mounting unit 332 for mounting the filter screen 331, a front cleaning member 333 for cleaning the liquid inlet side of the filter screen 331, and a rear cleaning member 334 for cleaning the liquid outlet side of the filter screen 331; the mounting unit 332 includes: a mounting frame 3321 fixedly mounted in the filter box 2 32, an annular groove provided on the mounting frame 3321, an annular plate 3322 movably mounted in the annular groove, and a linkage spring 3323 fixedly mounted between the annular plate 3322 and the annular groove; the annular plate 3322 is fixedly sleeved on the filter screen 331.

[0049] Specifically, when the wastewater flows to the top of the filter net 331, the water-insoluble substances in the wastewater can be filtered through the setting of the filter net 331, so that the water-insoluble substances in the wastewater are retained on the top of the filter net 331, and the filtered wastewater flows into the filter box 31. Since a liquid inlet opening 35 is opened on the treatment box 1, the liquid inlet opening 35 is connected to the filter box 31, and the filtered wastewater flows into the treatment box 1 through the liquid inlet opening 35.

[0050] In the present invention, by filtering the water-insoluble substances in the wastewater, on the one hand, the water-insoluble substances are prevented from being entangled on the stirring mechanism 2 and affecting the stirring effect of the stirring mechanism 2; on the other hand, the water-insoluble substances are prevented from affecting the mixing effect of the agent and the wastewater, thereby affecting the purification effect of the wastewater.

[0051] Since the water-insoluble substances in the wastewater are retained on the top of the filter 331, it is easy to cause the filter 331 to be blocked, so the filter 331 needs to be cleaned by the front cleaning member 333 and the rear cleaning member 334 to ensure the filtering effect of the filter 331; the front cleaning member 333 includes: a connecting shell 3331 fixedly mounted on the long shaft 2124, a scraper 3332 movably mounted in the connecting shell 3331, a baffle 3333 fixedly mounted on the connecting shell 3331, and a connecting spring 3334 fixedly mounted between the scraper 3332 and the connecting shell 3331; the rear cleaning member 334 includes: a cleaning cylinder 3341 rotatably mounted on the long shaft 2124, a linkage bevel gear 3342 coaxially connected to the cleaning cylinder 3341, and a bevel gear ring 3343 meshingly connected to the linkage bevel gear 3342; a discharge opening 8 is opened on the side wall of the filter box 2 32, and the bottom of the inner cavity of the discharge opening 8 is consistent with the top height of the filter 331.

[0052] Specifically, when the power source 2121 is started, the long shaft 2124 can be driven to rotate. When the long shaft 2124 drives the rear cleaning member 334 to rotate, the long shaft 2124 drives the cleaning cylinder 3341 and the linked bevel gear 3342 to rotate along the circumferential direction of the long shaft 2124. Since the linked bevel gear 3342 and the bevel gear ring 3343 are engaged with each other, the linked bevel gear 3342 rotates along the circumferential direction of the rotating shaft and at the same time rotates on its own, thereby driving the cleaning cylinder 3341 to rotate on its own. The surface of the cleaning cylinder 3341 is preferably designed with hard bristles, and the hard bristles will extend into the filter holes of the filter net 331 (not shown) and push out the substances in the filter holes. The pushed out substances are on the liquid inlet side of the filter net 331.

[0053] By rotating the cleaning cylinder 3341 along the circumference of the long axis 2124 and rotating on its own, the substances in the filter holes can be pushed out, thereby achieving preliminary cleaning of the filter screen 331 and improving the filtering effect of the filter screen 331.

[0054] Since the central axis of the cleaning cylinder 3341 is parallel to the central axis of the linkage shaft and does not overlap, when the cleaning cylinder 3341 rotates, the filter screen 331 can be intermittently squeezed to move the filter screen 331. During the movement of the filter screen 331, the annular plate 3322 is driven to slide in the annular groove, and the linkage spring 3323 is driven to deform. Through the elastic force of the linkage spring 3323, the filter screen 331 vibrates, thereby accelerating the filtering efficiency of the filter screen 331 for wastewater.

[0055] In the present invention, the cleaning cylinder 3341 pushes out the substances in the filter holes of the filter 331 while driving the filter 331 to vibrate, which on the one hand achieves preliminary cleaning of the filter 331 and improves the filtering effect of the filter 331, and on the other hand speeds up the filtering efficiency of the filter 331 for wastewater.

[0056] At the same time, when the front cleaning member 333 rotates, the long shaft 2124 drives the connecting shell 3331 to rotate, and the connecting shell 3331 drives the scraper 3332 to rotate. The scraper 3332 can scrape the material retained on the liquid inlet side of the filter 331 (the top of the filter 331) and the material pushed out of the filter hole by the hard bristles. Since the scraper 3332 is arranged in an arc shape, the material is subjected to the centrifugal force as the scraper 3332 rotates, and is then guided to the discharge opening 8 for discharge. Through the arrangement of the front cleaning member 333, the secondary cleaning of the filter 331 is achieved, the cleaning effect is greatly improved, and the filtering effect of the filter 331 is further improved.

[0057] By setting the connecting spring 3334, the scraper 3332 can always fit the filter screen 331, avoiding the problem of separation of the scraper 3332 and the filter screen 331 due to vibration of the filter screen 331, and improving the cleaning effect of the scraper 3332 on the filter screen 331.

[0058] By setting the baffle 3333, when the material is subjected to the centrifugal force as the scraper 3332 rotates, the material is shielded, which is conducive to collecting the material and improving the cleaning efficiency of the material.

[0059] In the present invention, by providing the front cleaning member 333 and the rear cleaning member 334, the filter 331 can be cleaned in multiple ways, thereby improving the cleaning effect and further improving the filtering effect of the filter 331, thereby preventing substances from clogging the filter 331 and affecting the ventilation effect.

[0060] Since a discharge opening 8 is provided on the side wall of the filter box 32, and the bottom of the inner cavity of the discharge opening 8 is at the same height as the top of the filter screen 331, the material scraped by the scraper 3332 falls onto the top of the annular filter screen 34 through the discharge opening 8. Through the setting of the annular filter screen 34, a small amount of moisture contained in the material can be filtered out, thereby realizing the collection of the filtered material.

[0061] It is added here that a sealing door is installed on the filter box 31. When it is necessary to clean the materials collected on the annular filter 34, the sealing door can be opened to facilitate cleaning of the materials.

[0062] In addition, an arc plate 5 is fixedly installed at the top of the long axis 2124. When wastewater is transported to the filter box 2 32 through the feed pipe 6, the wastewater first flows to the top of the arc plate 5, and then flows to the filter screen 331 through the top of the arc plate 5, thereby avoiding the problem that the wastewater directly impacts the filter screen 331 and causes damage to the filter screen 331, thereby playing a role in protecting the filter screen 331; When the long shaft 2124 rotates, the arc plate 5 can be driven to rotate, so that the wastewater can be diverted, so that the wastewater flows from all directions of the arc plate 5 to the filter screen 331, thereby improving the filtering efficiency of the wastewater; Since the arc plate 5 is located at the top of the driving bevel gear 2122 and the driven bevel gear 2123 , waste water can be prevented from impacting the driving bevel gear 2122 and the driven bevel gear 2123 , thereby protecting the driving bevel gear 2122 and the driven bevel gear 2123 .

[0063] As an optional solution, a linkage plate 9 is fixedly installed on the long shaft 2124, and the bottom of the linkage plate 9 is in contact with the top of the treatment box 1. The linkage plate 9 is driven to rotate by the long shaft 2124 to scrape the wastewater on the top of the treatment box 1, so that the wastewater quickly enters the treatment box 1 through the liquid inlet opening 35.

[0064] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0065] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A laboratory wastewater treatment equipment, characterized in that: include: A treatment box, a conveying mechanism for conveying a reagent into the treatment box, a stirring mechanism for stirring and mixing the wastewater and the reagent in the treatment box, and a pre-treatment mechanism for filtering the wastewater entering the treatment box; The stirring mechanism comprises: a stirring member, a driving unit driving the stirring member to rotate and move vertically, a movable shell, a movable rod fixedly mounted on the movable shell, a linkage member driving the movable shell to move axially, a fixed tube fixedly mounted on the processing box, a guide groove provided in the fixed tube, and a rolling member rotatably mounted on the movable rod; the rolling member rolls in the guide groove; The driving unit includes: a long shaft rotatably mounted on the processing box, a driven bevel gear fixedly sleeved on the long shaft, a driving bevel gear meshingly connected to the driven bevel gear, a power source for driving the driving bevel gear to rotate, a reciprocating thread opened on the long shaft, a moving plate threadedly connected to the long shaft, and a mounting frame fixedly mounted on the moving plate; the stirring element is rotatably mounted on the mounting frame.

2. A laboratory wastewater treatment equipment as claimed in claim 1, characterized in that: The stirring member includes: a stirring shaft rotatably mounted on the mounting frame, a stirring blade fixedly mounted on the stirring shaft, and a limiting strip fixedly mounted on the stirring shaft; a mounting groove and a limiting groove are opened on the long shaft, the limiting groove is connected to the mounting groove, and the stirring shaft is slidably mounted in the mounting groove, and the limiting strip slides in the limiting groove.

3. A laboratory wastewater treatment equipment as claimed in claim 1, characterized in that: The linkage member comprises: a transmission gear, a transverse rack and a vertical rack respectively meshed with the transmission gear.

4. A laboratory wastewater treatment equipment as claimed in claim 1, characterized in that: The conveying mechanism includes: a sac body fixedly installed between the processing box and the movable plate, a medicine box fixedly installed on the processing box, a liquid outlet head connected to the movable shell, a liquid inlet pipe connecting the sac body and the medicine box, and a liquid outlet pipe connecting the sac body and the movable shell; the liquid outlet end of the liquid outlet pipe is rotatably connected to the movable shell.

5. A laboratory wastewater treatment equipment as claimed in claim 1, characterized in that: The pretreatment mechanism includes: a filter box 1 fixedly installed on the treatment box, a filter box 2 plugged and installed in the filter box 1, a filter assembly fixedly installed in the filter box 2, and an annular filter screen fixedly installed between the filter box 1 and the filter box 2; a liquid inlet opening is opened on the treatment box, and the liquid inlet opening is connected to the filter box 1.

6. A laboratory wastewater treatment equipment as claimed in claim 5, characterized in that: The filter assembly comprises: a filter screen, a mounting unit for mounting the filter screen, a front cleaning member for cleaning a liquid inlet side of the filter screen, and a rear cleaning member for cleaning a liquid outlet side of the filter screen; The installation unit includes: an installation frame fixedly installed in the second filter box, an annular groove opened on the installation frame, an annular plate movably installed in the annular groove, and a linkage spring fixedly installed between the annular plate and the annular groove; the annular plate is fixedly sleeved on the filter net.

7. A laboratory wastewater treatment equipment as claimed in claim 6, characterized in that: The front cleaning member comprises: a connection shell fixedly mounted on the long shaft, a scraper movably mounted in the connection shell, a baffle fixedly mounted on the connection shell, and a connection spring fixedly mounted between the scraper and the connection shell.

8. A laboratory wastewater treatment equipment as claimed in claim 6, characterized in that: The rear cleaning member comprises: a cleaning cylinder rotatably mounted on the long shaft, a linkage bevel gear coaxially connected to the cleaning cylinder, and a bevel gear ring meshingly connected to the linkage bevel gear.

9. A laboratory wastewater treatment equipment as claimed in claim 4, characterized in that: The stirring mechanism further comprises: a linkage gear fixedly sleeved on the liquid discharge head, a fixed gear ring meshingly connected with the linkage gear, and a connecting plate fixedly mounted on the liquid discharge head; the liquid discharge head is rotatably mounted on the movable shell.

Images