Chemical experiment waste liquid treatment system
Technical field
The present invention relates to chemical experiment field, particularly relate to a kind of chemical experiment waste liquid treatment system.
Background technology
Colleges and universities' chemical experiment plays very important effect in chemical experiment teaching and chemical science research; be the very effective course of one of exploitation students ' practical ability and elaborative faculty, it greatly can improve the interest of students study and excavate the potentiality studied intensively further.But, a large amount of pharmaceutical chemicalss, reagent can be used in chemical experiment teaching and process of scientific research, also can produce a large amount of waste gas, waste liquid and solid waste.And along with the continuous increase of number of student; accumulate through long-term experiment; the waste that colleges and universities' chemical laboratory produces also gets more and more; add these waste compositions quite complicated; if do not carry out necessary process and directly discharge; not only can the teaching and scientific research environment of breaking test room, also can damage the healthy of teachers and students, cause very serious consequence.Therefore, the waste of chemical laboratory discharge just can must discharge, to reduce the pollution to environment after focusing on.
For this reason, Chinese utility model patent specification sheets CN202921330U discloses a kind of chemical experiment waste liquid collection device, comprise waste collection box body, the cross section of waste collection box body is rectangle, the lower end closed of waste collection box body, the upper end of waste collection box body is opening end, waste collection tray interior is provided with three compartments, three compartments all communicate with the opening end of waste collection box body, waste collection box body outer side wall is fixed with two retaining plates, two retaining plates be arranged in parallel, two retaining plates are vertical with waste collection box body outer side wall to be arranged, on each retaining plate along thickness of slab direction through processing threaded hole, two threaded holes are coaxially arranged, threaded hole is threaded with jackscrew, each compartment sidewall of waste collection box body is respectively equipped with outage near lower end, one end of liquid discharge pipe is connected with outage, liquid discharge pipe is provided with control valve.But this chemical experiment waste liquid collection device is only the effect playing centralized collection, and it does not do any purifying treatment to waste liquid, therefore objectionable constituent during discharge in waste liquid still can cause environmental pollution.
Summary of the invention
The defect of prior art and various weak point in view of the above, the technical problem to be solved in the present invention is to provide a kind of chemical experiment waste liquid treatment system.
For achieving the above object, the invention provides a kind of chemical experiment waste liquid treatment system, comprise controller, the funnel of falling liquid, neutralization tank, liquid collecting tank, induced draft fan, fill the first scrubbing bottle of Acidic Liquid, the second scrubbing bottle filling alkali solution and the 3rd scrubbing bottle being filled with gac, the described funnel of falling liquid is connected with neutralization tank by tubing, the inwall of described tubing is provided with the first electronics PH and counts, and is provided with the first shower nozzle of multiple injection Acidic Liquid in described neutralization tank, second shower nozzle of multiple injection alkali solution, and the 3rd shower nozzle of multiple injection water, inwall bottom neutralization tank is provided with the second electronics PH and counts, the bottom of described neutralization tank is provided with a liquid discharge pipe, the lower end of this liquid discharge pipe is provided with a filter screen, described liquid collecting tank is connected with liquid discharge pipe by a collector tube, described collector tube is provided with a magnetic valve, the inwall of liquid collecting tank is provided with a liquidometer, described first electronics PH counts, second electronics PH counts, first shower nozzle, second shower nozzle, 3rd shower nozzle, magnetic valve is all connected with controller with liquidometer, also comprise first outlet pipe, second exhaust pipe, the 3rd vapor pipe and the 4th vapor pipe, described first outlet pipe one end is placed in neutralization tank, and the other end stretches in the Acidic Liquid of the first scrubbing bottle, and described induced draft fan is arranged on first outlet pipe, described second exhaust pipe one end is placed in the first scrubbing bottle and is positioned at the top of Acidic Liquid, and the other end stretches in the alkali solution of the second scrubbing bottle, described 3rd vapor pipe one end is placed in the second scrubbing bottle and is positioned at the top of alkali solution, and the other end stretches in the gac of the 3rd scrubbing bottle, described 4th vapor pipe one end is placed in the 3rd scrubbing bottle and is positioned at the top of gac, and the other end is placed in outdoor.
Further, described collector tube comprises the first collector tube and the second collector tube, and the lower end of the first collector tube is connected by flange with the upper end of the second collector tube, and described magnetic valve is arranged on the first collector tube, first collector tube is connected with liquid discharge pipe, and the second collector tube is connected with liquid collecting tank.
Preferably, multiple sealing-ring is provided with between described liquid discharge pipe and the first collector tube.
Further, also comprise one and be fixed on motor on neutralization tank upper surface, this motor is connected with controller, and the stir shaft that the output shaft of described motor is arranged in neutralization tank by shaft coupling and is connected, and described stir shaft is provided with agitating vane.
Preferably, the outer wall of described neutralization tank is provided with an operating panel, and described operating panel is provided with display screen and operation push-button, and described display screen is all connected with controller with operation push-button.
Preferably, described operating panel is also provided with the pilot lamp and hummer that are all connected with controller.
The chemical experiment waste liquid treatment system that the present invention relates to has following beneficial effect:
This chemical experiment waste liquid treatment system can in and the pH value of waste liquid and gas, carry out again when the pH value of waste liquid is adjusted in the scope of emission standard concentrating discharge, and whole process is automated operation, thus manual operation can be avoided healthy produced harm, and this system architecture is simple, easy to operate.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technique means of the present invention, and can be implemented according to the content of specification sheets, coordinates accompanying drawing to be described in detail to this patent below with preferred embodiment of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Element numbers explanation
1 funnel of falling liquid
2 neutralization tanks
3 liquid collecting tanks
4 induced draft fans
5 first scrubbing bottles
6 second scrubbing bottles
7 the 3rd scrubbing bottles
8 tubings
9 first electronics PH count
10 first shower nozzles
11 second shower nozzles
12 the 3rd shower nozzles
13 second electronics PH count
14 liquid discharge pipes
15 filter screens
16 magnetic valves
17 liquidometers
18 first outlet pipes
19 second exhaust pipes
20 the 3rd vapor pipes
21 the 4th vapor pipes
22 first collector tubes
23 second collector tubes
24 sealing-rings
25 motors
26 stir shafts
27 agitating vanes
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, the invention provides a kind of chemical experiment waste liquid treatment system, comprise controller, the funnel of falling liquid 1, neutralization tank 2, liquid collecting tank 3, induced draft fan 4, fill the first scrubbing bottle 5 of Acidic Liquid, fill the second scrubbing bottle 6 of alkali solution and be filled with the 3rd scrubbing bottle 7 of gac, the described funnel of falling liquid 1 is connected with neutralization tank 2 by tubing 8, the inwall of described tubing 8 is provided with the first electronics PH and counts 9, is provided with the first shower nozzle 10 of multiple injection Acidic Liquid in described neutralization tank 2, second shower nozzle 11 of multiple injection alkali solution, and the 3rd shower nozzle 12 of multiple injection water, inwall bottom neutralization tank 2 is provided with the 3rd electronics PH and counts 13, the bottom of described neutralization tank 2 is provided with a liquid discharge pipe 14, the lower end of this liquid discharge pipe 14 is provided with a filter screen 15, described liquid collecting tank 3 is connected with liquid discharge pipe 14 by a collector tube, described collector tube is provided with a magnetic valve 16, the inwall of liquid collecting tank 3 is provided with a liquidometer 17, described first electronics PH counts 9, second electronics PH counts 13, first shower nozzle 10, second shower nozzle 11, 3rd shower nozzle 12, magnetic valve 16 is all connected with controller with liquidometer 17, also comprise first outlet pipe 18, second exhaust pipe 19, the 3rd vapor pipe 20 and the 4th vapor pipe 21, described first outlet pipe 18 one end is placed in neutralization tank 2, the other end stretches in the Acidic Liquid of the first scrubbing bottle 5, and described induced draft fan 4 is arranged on first outlet pipe 18, described second exhaust pipe 19 one end is placed in the first scrubbing bottle 5 and is positioned at the top of Acidic Liquid, and the other end stretches in the alkali solution of the second scrubbing bottle 6, described 3rd vapor pipe 20 one end is placed in the second scrubbing bottle 6 and is positioned at the top of alkali solution, and the other end stretches in the gac of the 3rd scrubbing bottle 7, described 4th vapor pipe 21 one end is placed in the 3rd scrubbing bottle 7 and is positioned at the top of gac, and the other end is placed in outdoor.
In the present invention, described first scrubbing bottle 5, second scrubbing bottle 6 and the 3rd scrubbing bottle 7 are encloses container, and when experiment is finished, poured into by experimental waste liquid in the funnel of falling liquid 1, then waste liquid is entered in neutralization tank 2 by tubing 8.The first electronics PH in tubing 8 counts 9 for detecting the potential of hydrogen of waste liquid, and when waste liquid is in time acid, controller controls that the first shower nozzle 10 is closed, the second shower nozzle 11 and the 3rd shower nozzle 12 are opened, to spray alkaline liquid and water simultaneously; When waste liquid is in alkalescence, controller controls that the second shower nozzle 11 is closed, the first shower nozzle 10 and the 3rd shower nozzle 12 are opened, to spray acidic liquid and water simultaneously, thus in reaching and the object of waste liquid and dilution waste liquid.Described second electronics PH counts 13 and neutralize for detecting and dilute the pH value of afterwards waste liquid, after this pH value is in the scope meeting emission request of setting, controller Controlling solenoid valve 16 is opened, then waste liquid is by entering in liquid collecting tank 3 in liquid discharge pipe 14, filter screen 15, collector tube, solid particulate interception in liquid discharge pipe 14, is realized solid-liquid separation by described filter screen 15; Afterwards the waste liquid in liquid collecting tank 3 is focused on.After the liquidometer 17 in liquid collecting tank 3 detects that liquid level reaches preset value, then controller Controlling solenoid valve 16 is closed, to prevent the spilling of waste liquid.In N-process, have the generation of gas, the gas produced is successively by being expelled to outdoor after the first scrubbing bottle 5, second scrubbing bottle 6 and the 3rd scrubbing bottle 7, first scrubbing bottle 5 in and alkaline gas, second scrubbing bottle 6 in and sour gas, the 3rd scrubbing bottle 7 is for the objectionable constituent in filtering gas.So, this chemical experiment waste liquid treatment system can in and the pH value of waste liquid and gas, carry out again when the pH value of waste liquid is adjusted in the scope of emission standard concentrating discharge, and whole process is automated operation, thus manual operation can be avoided healthy produced harm, and this system architecture is simple, easy to operate.
Further, as shown in Figure 1, the lower end that described collector tube comprises the first collector tube 22 and the second collector tube 23, first collector tube 22 is connected by flange with the upper end of the second collector tube 23, be provided with sealing member between two flanges, and two flanges are bolted to connection; Described magnetic valve 16 is arranged on the first collector tube 22, and the first collector tube 22 is connected with liquid discharge pipe 14 and presses, and the second collector tube 23 is connected with liquid collecting tank 3.When needing the waste liquid in liquid collecting tank 3 to outwell, the flange of the flange of the first collector tube 22 with the second collector tube 23 being separated mutually, then liquid collecting tank 3 is transported to the place of specifying, very convenient.Preferably, between described liquid discharge pipe 14 and the first collector tube 22, be provided with multiple sealing-ring 24, to ensure the stopping property between liquid discharge pipe 14 and the first collector tube 22.
Further, see Fig. 1, also comprise one and be fixed on motor 25 on neutralization tank 2 upper surface, this motor 25 is connected with controller, the stir shaft 26 that the output shaft of described motor 25 is arranged in neutralization tank 2 by shaft coupling and is connected, and described stir shaft 26 is provided with agitating vane 27.
Preferably, the outer wall of described neutralization tank 2 is provided with an operating panel, and described operating panel is provided with display screen and operation push-button, and described display screen is all connected with controller with operation push-button, and shown operation push-button is used for opening or disable motor 25.
Preferably, described operating panel is also provided with the pilot lamp be all connected with controller and hummer, after the liquid level in liquid collecting tank 3 reaches set(ting)value, then controller controls bright, the hummer of pilot lamp and sounds the alarm, to play warning function.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above a kind of chemical experiment waste liquid treatment system that the embodiment of the present invention provides is described in detail; for one of ordinary skill in the art; according to the thought of the embodiment of the present invention; all will change in specific embodiments and applications; in sum; this description should not be construed as limitation of the present invention, and all any changes made according to design philosophy of the present invention are all within protection scope of the present invention.