CN1084829A

CN1084829A - Processing machine for waste water containing cyanogen

Info

Publication number: CN1084829A
Application number: CN 92106730
Authority: CN
Inventors: 孙新荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-29
Filing date: 1992-09-29
Publication date: 1994-04-06

Abstract

Processing machine for waste water containing cyanogen of the present invention belongs to sewage treatment equipment.It is a kind of cabinet type or semi-automatic secondary apparatus for continous treatment of frame-type, voltage, reometer, pH and ORP instrument and corresponding switch and pilot lamp is arranged, warning howler on the front face plate; Two groups of mixing tank and electrode devicies that communicated by pipeline of clamping plate fixed are equipped with at the cabinet middle part; By the valve controlling flow amount with regulate the pH value and advance draining; Control entering of waste water by water inlet pipe, vacuum breaker, under meter.It is simple and reasonable for structure, and cost is low, takes up an area of to lack, and energy-conservation, easy and simple to handle, processing costs is low, and is effective, the relief liquor conformance with standard.

Description

Processing machine for waste water containing cyanogen

The invention belongs to sewage treatment equipment.

Environment protection is the major issue in the whole world, and various countries are all paid attention to.Owing to the three wastes are handled bad the fine, the thing of stopping production occurs repeatedly, and the cyanide wastewater that plating and other industries produce also belongs to the row of the three wastes, and pollutes rivers, and the harm people are healthy." the graphite pole plate handler " used always, " chlor-alkali ", " ferrous sulfate method ", " ozone method " handled complicated, the expense costliness, the cycle is longer.

The purpose of this invention is to provide the semi-automatic processed continuously mechanism of a kind of frame that utilizes chemical principle and design, its instrument monitoring, cost is low, takes up an area of to lack, and energy-conservation, easy and simple to handle, treatment effect is good.

We's ratio juris is to utilize the clorox that produces of electrolyzing table salt among the hypochlorite generator to mix with cyanide wastewater to make the cyanogen root be oxidized to cyanate radical, further is oxidized to carbonic acid gas and nitrogen or is hydrolyzed into bicarbonate of ammonia in waste water, in hydrolytic process, along with CN ^-Oxidized and the continuous minimizing of ion, complex cyanide reacts, and the cyanogen root of generation is constantly by the hypochlorite oxidation, and metal ion generates precipitation of hydroxide.The relevant chemical equation of reaction is:

Use instrument monitoring behind the waste water access arrangement, Artificial Control, oxide treatment in certain PH precipitates in water reservoir at last, and supernatant liquor is discharged.

Accompanying drawing is the processing machine for waste water containing cyanogen structural representation, and wherein Fig. 1 is the stravismus outside drawing, and Fig. 2 is the forward sight structure iron, and 1-advances alkali liquor pipe, 2-brine flow meter, 3-water sprayer, 4-train wheel bridge, the 5-hypochlorite generator, 6-mixing tank, the combination of 7-transmitter, the 8-under meter, 9-electrode cell, 10-electrode cell strainer, the 11-vacuum breaker, 12-lower plate, 13-water inlet pipe, 14-water shoot, 15-advance the saline solution pipe, the 16-rising pipe, 17-returns valve, 18-buffer tube, 19-secondary electrodes device water inlet pipe, the 20-door, 21-PH table, 22-ORP table, the 23-reometer, 24-voltmeter, 25-warning howler, the 26-pilot lamp, 27-starting mode of pump and stop button PH table, ORP shows switch.

The processed continuously cabinet type device processing machine for waste water containing cyanogen of a kind of secondary, it is characterized in that: fix two groups of blenders (6) and electrode assembly in cabinet bottom lower plate (12) front portion, middle fixedly hypochlorite generator (5), the left side is separator tube (18) fixedly, right side firm discharge meter (8), check-valves (11) with drainpipe (14) and the water inlet pipe (13) of valve, secondary mixer upper end pipeline meets the hypochlorite generator, lower channel connects separator tube and with the drainpipe of valve, one-level blender upper end connects water sprayer (3), lower termination hypochlorite generator, the lower end of one-level electrode assembly and with the drainpipe of valve, the drainpipe of separator tube top connected water outlet pipe (16) upper end and tail end tape splicing valve, secondary electrodes device water inlet pipe (19) in the separator tube connects the valve of secondary electrodes device, the flowmeter upper end joins with water sprayer (3), the connecting band valve advances alkali liquor pipe (1) on the water sprayer, the control of terminal strip brine flow meter (2) and valve advances saline solution pipe (15) under the hypochlorite generator, the train wheel bridge of cabinet (4) is mixing tube fixedly, separator tube, hypochlorite generator and flow are taken into account pipeline and front panel, door (20) is equipped with in the cabinet bottom, the front panel right-hand part leaves the valve hole of brine flow meter and saline solution pipe and alkali liquor pipe, the upper end, left side is voltmeter (24) from left to right, ammeter (23), ORP shows (22), PH shows (21), it is alarm (25) under the voltmeter, the bottom is starting of pump station indicator lamp and button, water pump stops indicator lamp and button, ORP table indicator lamp and switch, PH table indicator lamp and switch. This electrode assembly is by electrode cell (9), and the transmitter on electrode cell filter (11) and top combination (7) forms, the electrode cell water pipe that runs in. Associated conduit is contained in the cabinet and with corresponding instrument with relevant electrical equipment and links to each other.

The machine using method is: 1, preparation, check the liquid level of reagent in each transmitter, and the liquid level of saline slot and alkali groove is opened and is returned valve (17), makes equipment underproof water in adjustment return former cistern, closes each valve again. 2, the starting mode of pump button is pressed in start, and cyanide wastewater is squeezed into water inlet pipe (13) by cistern through immersible pump, through check-valves (11), flowmeter (8), water sprayer (3) enters one-level pipe-line mixer (6), adjust the control valve under the check-valves, make stability of flow at 5m³/ h, adjust the control valve under the one-level electrode assembly, make in the electrode cell stable level on the distance top 1 centimeter place, open the valve on the alkali liquor pipe (1), alkali lye in sneaking into the one-level pipe-line mixer, is mixed with cyanide wastewater water sprayer, open PH table switch, pH value in the waste water that transmitter combination on the one-level electrode assembly is about to measure is reflected on the PH table, adjust this valve, PH is stabilized in the 9-10, adjust the valve on the saline solution pipe (15), make brine flow be stabilized in the electrolysis in hypochlorite generator (5) of 100-120L/h salt solution, electrolyte enters in the secondary pipe-line mixer after sufficiently mixing, enter again in the separator tube (18), start dc source, make electric current at 200A, open ORP table switch, adjust the control valve of secondary electrodes device, make secondary electrodes pool inner water position be stabilized in 1 centimeter place apart from the top, the transmitter combination of secondary electrodes device, the current potential number that measures is reflected on the ORP table, adjust again the valve on the saline solution pipe, ORP is stabilized in the 250-350 scope, observe instrument (21,22), adjust each liquid flowing valve meter reading is stabilized in the prescribed limit, close at last and return valve (17) and make machine normal operation, the cyanide wastewater after the processing enters sedimentation basin through outlet pipe (16), after precipitating after a while, supernatant can discharge or utilize. 3, shutdown. Behind the end-of-job, open and return valve (17) and press the water pump stop button, close liquid flowing valve and dc source. 4, cleaning. Behind long-play, there is sediment in each blender, separator tube and the parts, the valve of the logical drainpipe in device for opening bottom, liquid storage in the equipment is drained in the former cistern, close the valve of logical drainpipe after the emptying, open and return valve (17) and open water pump cyanide wastewater circulation flushing, in the main system during deposit-free only, switch off the pump. Open again the valve of each logical drainpipe and close after 10 minutes, stand-by.

The advantage of this law is instrument monitoring, semi-automatic (can repack into full-automatic), equipment manufacturing cost is low, takes up an area less, energy-conservation, easy and simple to handle, and disposal cost is low, and treatment effect is good.

Claims

1, the processed continuously cabinet type device processing machine for waste water containing cyanogen of a kind of secondary, it is characterized in that: fix two groups of mixing tanks [6] and electrode device in cabinet bottom lower plate [12] front portion, center fixed hypochlorite generator [5], the left side is buffer tube [18] fixedly, right side base runoff meter [8], vacuum breaker [11] and water shoot [14] and the water inlet pipe [13] of being with valve, secondary mixing tank upper end pipeline meets the hypochlorite generator, lower channel connects the water shoot of buffer tube and band valve, one-level mixing tank upper end connects water sprayer [3], the water shoot of the lower end of following termination hypochlorite generator's one-level electrode device and band valve, the buffer tube top picks out the water shoot of water pipe [16] upper end and tail end tape splicing valve, secondary electrodes device water inlet pipe [19] in the buffer tube connects the valve of secondary electrodes device, the under meter upper end joins with water sprayer [3], the connecting band valve advances alkali liquor pipe [1] on the water sprayer, the control of terminal strip brine flow meter [2] and valve advances saline solution pipe [15] under the hypochlorite generator, the train wheel bridge of cabinet [4] is mixing tube fixedly, buffer tube, hypochlorite generator and flow are taken into account pipeline and front panel, door [20] is equipped with in the cabinet bottom, the front panel right-hand part leaves the valve hole of brine flow meter and saline solution pipe and alkali liquor pipe, the upper end, left side is voltmeter [24] from left to right, reometer [23], ORP shows [22], PH shows [21], it under the voltmeter warning howler [25], the bottom is starting of pump station pilot lamp and button, water pump stops pilot lamp and button, ORP table pilot lamp and switch, PH table pilot lamp and switch.

2, processing machine for waste water containing cyanogen according to claim 1 is characterized in that, this electrode device is made up of with the electrode cell (9) at middle part and the electrode cell strainer (11) of bottom the transmitter combination (7) on top.