CN108132354B - Cyanide reactivity tester - Google Patents
Cyanide reactivity tester Download PDFInfo
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- CN108132354B CN108132354B CN201711391186.8A CN201711391186A CN108132354B CN 108132354 B CN108132354 B CN 108132354B CN 201711391186 A CN201711391186 A CN 201711391186A CN 108132354 B CN108132354 B CN 108132354B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
Abstract
The invention discloses a cyanide reactivity tester, which comprises a reaction mechanism, a sample injection mechanism, a stirring module, a control module, a gas washing mechanism, an accessory module and an alarm device, wherein the reaction mechanism is connected with the sample injection mechanism; the reaction mechanism comprises a three-neck reaction container, a reaction container base, a reaction container upper cover and a reaction container fixing clamp; the sample injection mechanism comprises a peristaltic pump, a separating funnel, a valve knob, an acid liquor interface, a nitrogen interface, a peristaltic pump communication interface, a ground glass plug and a funnel fixing clamp; the stirring module comprises a tetrafluoro stirring rod, a stepping motor driver, a synchronous wheel, a synchronous belt and a hand wheel; the control module comprises a control switch, a control power supply and a main control device; the gas washing mechanism comprises a gas washing cylinder and is arranged on the right side of the tester; the auxiliary module comprises a bottom plate, foot pads, a fixed bottom plate, a diversion trench, a gear, a bearing seat and an exhaust outlet; the alarm device comprises a buzzer; the cyanide reactivity tester overcomes the defects of the prior art, and is high in detection precision, high in efficiency and good in safety.
Description
Technical Field
The present invention relates to the measurement of the ability of cyanide-containing waste to decompose to produce cyanide sulfide gas under acidic conditions to determine the risk of reactivity of solid waste. In the test, quantitative waste is mixed with a certain amount of acid in a reaction bottle, the generated gas is blown into a gas washing bottle, and then the analyte is measured to evaluate the risk of reactivity, more specifically, the cyanide reactivity tester is involved.
Background
Cyanide is widely used in civil industry, but is a high-toxic substance, once leakage occurs, serious consequences are caused to the living environment of human beings, so that the cyanide monitoring method has very important significance in environment monitoring. The cyanide reactivity tester in the domestic market at present has low detection precision, low efficiency and poor safety, and is difficult to meet the verification requirement. The market is in urgent need of detecting the dangerous characteristics of the substances by using a detection device meeting the standard requirements and adapting to the development of the age.
Disclosure of Invention
The cyanide reactivity tester overcomes the defects of the prior art and has reasonable structural design and accurate test.
The technical scheme of the invention is as follows:
the cyanide reactivity tester comprises a reaction mechanism, a sample injection mechanism, a stirring module, a control module, a gas washing mechanism, an accessory module and an alarm device; the reaction mechanism comprises a three-neck reaction container, a reaction container base, a reaction container upper cover and a reaction container fixing clamp; the sample injection mechanism comprises a peristaltic pump, a separating funnel, a valve knob, an acid liquor interface, a nitrogen interface, a peristaltic pump communication interface, a ground glass plug and a funnel fixing clamp; the stirring module comprises a tetrafluoro stirring rod, a stepping motor driver, a synchronous wheel, a synchronous belt and a hand wheel; the control module comprises a control switch, a control power supply and a main control device; the gas washing mechanism comprises a gas washing cylinder and is arranged on the right side of the tester; the auxiliary module comprises a bottom plate, foot pads, a fixed bottom plate, a diversion trench, a gear, a bearing seat and an exhaust outlet; the alarm device comprises a buzzer.
Wherein the three-neck reaction vessel is placed on the reaction vessel base, and the reaction vessel upper cover is placed on the three-neck reaction vessel; the reaction container fixing clamp is arranged on the fixing bottom plate and is formed by combining two semicircular rings, and a bolt fastening structure is used at the joint of the semicircular rings and is used for fixing the three-neck reaction container and the reaction container upper cover; the reaction vessel upper cover is fixed on a reaction vessel fixing plate through a clip, and the reaction vessel fixing plate is arranged on the fixing bottom plate; the reaction vessel is covered with three holes, the left hole is connected with the separating funnel, the middle hole is connected with the tetrafluoro stirring rod, the right hole is connected with the gas washing mechanism, and all the three holes adopt ground glass plug interfaces; the size of the fixed bottom plate is 500 multiplied by 500 mm, the material is high polymer material, and the fixed bottom plate is vertically arranged in the middle of the bottom plate; the reaction vessel base is a cylinder with the diameter of 80 mm and the height of 20 mm, is made of rubber and is arranged on the front side of the bottom plate; the three-neck reaction vessel and the upper cover of the reaction vessel are both glassware.
The peristaltic pump is connected with the peristaltic pump communication interface to control the injection range of the acid liquor, and the acid liquor interface is used for acid liquor injection; the separating funnel is fixed on the fixed bottom plate through the funnel fixing clamp, one end of the separating funnel adopts a ground glass plug interface, and the other end of the separating funnel is provided with the valve knob; the two funnel fixing clamps are respectively arranged at one third and two thirds of the length of the separating funnel from the upper end; the funnel fixing clamp is in the form of two strip-shaped wood blocks for clamping the separating funnel and is fixed in a bolt fastening mode.
The polytetrafluoroethylene stirring rod is vertically arranged in the middle hole of the upper cover of the three-neck reaction container, the length is 300 mm, the diameters of the stirring rod are 20 mm, 10 mm, 20 mm and 5 mm in sequence from top to bottom, and the lengths of the sections with the diameters of 20 mm, 10 mm and 20 mm are 40 mm; the stepping motor driver is arranged on the back of the fixed bottom plate and connected with the stepping motor to control the stepping motor to operate; the stepping motor is arranged on the front surface of the fixed bottom plate, and the main shaft is connected with the tetrafluoro stirring rod; when the stepping motor operates, the tetrafluoro stirring rod is driven to stir substances in the three-neck reaction container; the hand wheel is arranged on the fixed bottom plate, is 150 mm away from the bottom plate, has a diameter of 30 mm and is positioned on the right side of the three-neck reaction container, and the rotation of the synchronous wheel and the synchronous belt is manually controlled through the hand wheel; the synchronous wheel and the synchronous belt are connected with the tetrafluoro stirring rod and are used for adjusting the height of the tetrafluoro stirring rod in the three-neck reaction container; the hand wheel is arranged at the right upper part of the front surface of the fixed bottom plate; the synchronous belt and the synchronous wheels are positioned at the right upper part of the fixed bottom plate, the total number of the synchronous wheels is three, the diameters of the synchronous wheels are 50 mm, 30 mm, 20 mm, 50 mm and 20 mm respectively, the synchronous wheels are arranged at the upper side, the synchronous wheels with 20 mm are arranged at the lower side, and the synchronous wheels with 30 mm are arranged at the right side; the synchronous wheel is fixed on a concave iron sheet on the back of the fixed bottom plate, and the concave iron sheet is fixed on the fixed bottom plate through bolts.
The bottom plate is 600 multiplied by 400 mm in size and 30 mm in thickness, is made of low alloy steel, and is provided with an inward-inclined baffle plate at the edge, wherein the height of the baffle plate is 30 mm, the thickness of the baffle plate is 5 mm, and an included angle of 80 degrees is formed between the baffle plate and the horizontal plane; four foot pads are arranged on the lower portion of the bottom plate, the height of each foot pad is 20 mm, the diameter of each foot pad is 70 mm, and the foot pads are made of low carbon steel.
The main control device comprises a display screen, a mass flowmeter, an alternating current contactor, a sensor, a direct current motor, a pressure stabilizing valve, an electromagnetic regulating valve, an electromagnetic valve and a main board, wherein the display screen, the mass flowmeter, the alternating current contactor, the sensor, the direct current motor, the pressure stabilizing valve, the electromagnetic valve and the main board are used for displaying and inputting information, and the main board is electrically connected with other parts of the main control device to control the other parts; the mass flowmeter is arranged on the rear side of the bottom plate, the alternating current contactor is arranged on the right side of the mass flowmeter, the control switch comprises a three-in-one switch, a scram switch and a self-locking switch, the three-in-one switch is arranged on the right side of the back surface of the fixed bottom plate, the scram switch is arranged on the top of the fixed bottom plate, and the self-locking switch is arranged below the display screen; the sensor is arranged on the back of the fixed bottom plate, and the control power supply is arranged on the right side of the back of the fixed bottom plate and is used for supplying power to the control module.
Further, the pressure stabilizing valve is arranged below the separating funnel and used for adjusting the air pressure; the pressure stabilizing valve is arranged at the left lower part of the front surface of the fixed bottom plate.
Further, the buzzer is arranged on the back of the fixed bottom plate and is positioned on the right side of the stepping motor driver and used for alarming when danger occurs.
Further, the diversion trench is designed on the bottom plate and is arranged along the inner side of the inward-inclined baffle, and the diversion trench has a depth of 3 mm and a width of 10 mm and is externally connected with a waste liquid tank or a sewer.
Further, the valve knob is controlled by the direct current motor, the sensor, the gear and the bearing seat; the valve knob controls the acid liquor to be injected into the three-neck reaction vessel.
Furthermore, 0.25 mol/L NaOH solution is filled in the gas washing bottle; the exhaust gas outlet is installed on the right side of the bottom plate.
Compared with the prior art, the invention has the advantages that: automatically charging nitrogen at a speed of 60ml/min by default, wherein the charging speed is adjustable by 0-300ml/min, the duration is 30 minutes by default, and the charging time is adjustable by 0-120 minutes; injecting sulfuric acid solution (standard rule 0.05 mol/L) by using an automatic sample injection mechanism, wherein the sample injection amount is 0-600ml; the rotating motor drives the spiral stirrer to work, an auxiliary stirring function is provided, the stirring speed defaults to 30rpm, and the stirring speed can be set between 20 rpm and 60 rpm; the bottom of the equipment is provided with a diversion trench, and is externally connected with a waste liquid tank or a sewer, such as a reaction container is broken, and the solution flows out along the diversion trench, so that the equipment is prevented from being polluted; the equipment is provided with an excessive cyanogen sulfide gas collecting device, so that the excessive cyanogen sulfide gas is prevented from being dangerous for laboratory personnel; the equipment adopts touch screen control, supports one-key start, and can automatically complete the whole test process.
Drawings
FIG. 1 is a schematic diagram of a front view mechanism of a cyanide reactivity tester of the present invention;
FIG. 2 is a schematic diagram of a rear view mechanism of the cyanide reactivity tester of the present invention;
FIG. 3 is an enlarged view of a portion of the area of block A of FIG. 1;
FIG. 4 is an enlarged view of a portion of the area B of FIG. 1;
FIG. 5 is an enlarged view of a portion of the area of block C of FIG. 1;
fig. 6 is a partial enlarged view of the area of block D of fig. 2.
Reference numerals: a foot pad 1; a base plate 2; a diversion trench 3; a hand wheel 4; a reaction vessel fixing clip 5; a tetrafluoro stirring rod 6; a gas washing bottle 7; a stepping motor 8; a self-locking switch 9; a display screen 10; a fixed bottom plate 11; an emergency stop switch 12; a synchronizing wheel 13; a timing belt 14; grinding the glass plug 15; a separating funnel 16; a funnel-fixing clip 17; a valve knob 18; a reaction vessel fixing plate 19; a reaction vessel upper cover 20; a three-neck reaction vessel 21; a pressure stabilizing valve 22; a reaction vessel base 23; peristaltic pump 24; an electromagnetic regulating valve 25; a solenoid valve 26; a nitrogen interface 27; an acid interface 28; peristaltic pump communication interface 29; a three-in-one switch 30; a control power supply 31; a direct current motor 32; a sensor 33; a gear 34; a bearing block 35; a stepper motor driver 36; a buzzer 37; a mass flowmeter 38; an ac contactor 39; an exhaust outlet 40.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 to 6, the cyanide reactivity tester comprises a reaction mechanism, a sample injection mechanism, a stirring module, a control module, a gas washing mechanism, an accessory module and an alarm device. The reaction mechanism comprises a three-neck reaction vessel 21, a reaction vessel base 23, a reaction vessel upper cover 20 and a reaction vessel fixing clamp 5. The sample injection mechanism comprises a peristaltic pump 24, a separating funnel 16, a valve knob 18, an acid liquid interface 28, a nitrogen interface 27, a peristaltic pump communication interface 29, a ground glass plug 15 and a funnel fixing clamp 17. The stirring module comprises a tetrafluoro stirring rod 6, a stepping motor 8, a stepping motor driver 36, a synchronous wheel 13, a synchronous belt 14 and a hand wheel 4. The control module comprises a control switch, a control power supply 31 and a main control device. The gas washing mechanism comprises a gas washing bottle 7 which is arranged on the right side of the tester. The auxiliary module comprises a bottom plate 2, foot pads 1, a fixed bottom plate 11, a diversion trench 3, a gear 34, a bearing seat 35 and an exhaust outlet 40. The alarm means comprise a buzzer 37.
The three-necked reaction vessel 21 is placed on the reaction vessel base 23, and the reaction vessel upper cover 20 is placed on the three-necked reaction vessel 21. The reaction vessel fixation clamp 5 is installed on the fixed bottom plate 11, is formed by two semicircle rings combination, and semicircle ring junction uses bolt-up formula structure, adopts this kind of mode to connect, can make things convenient for the fixed elasticity degree of later stage regulation, adapts to different experimental conditions. The reaction vessel fixing clamp 5 is used for fixing the three-neck reaction vessel 21 and the reaction vessel upper cover 20, so as to avoid inaccurate test results caused by air leakage. The reaction vessel upper cover 20 is fixed to the reaction vessel fixing plate 19 by a clip, and the reaction vessel fixing plate 19 is mounted on the fixing base plate 11. The reaction vessel upper cover 20 has three trompil, and left side hole is connected separating funnel 16, the intermediate hole is connected tetrafluoro stirring rod 6, the right side hole is connected gas washing mechanism, three hole all adopts ground glass stopper 15 interface, fully guarantees the gas tightness of system. The fixed bottom plate 11 is 500×500 mm in size, made of polymer material, and vertically installed in the middle of the bottom plate 2. The reaction vessel base 23 is a cylinder with a diameter of 80 mm and a height of 20 mm, is made of rubber, and is arranged on the front side of the bottom plate 2. Both the three-necked reaction vessel 21 and the reaction vessel top cap 20 are glassware, which is intended to prevent cyanide reactants from chemically reacting with the vessel, resulting in unpredictable hazards.
The acid liquor interface 28, the nitrogen interface 27 and the peristaltic pump communication interface 29 are arranged on the left side of the bottom plate 2 side by side, the peristaltic pump 24 is connected with the peristaltic pump communication interface 29, the injection range of acid liquor is controlled, and the acid liquor interface 28 is used for acid liquor injection. The separating funnel 16 is fixed on the fixed bottom plate 11 through the funnel fixing clamp 17, one end of the separating funnel 16 adopts a ground glass plug 15 interface, the air tightness of the system is fully ensured, and the other end is provided with the valve knob 18. The valve knob 18 controls whether the acid solution is completely injected into the three-neck reaction vessel 21, and two funnel fixing clips 17 are respectively arranged at the third and the two thirds of the length of the separating funnel 16 from the upper end. The nitrogen port 27 is used for cleaning the residual gas in the pipeline.
The tetrafluoro stirring rod 6 is vertically arranged in the middle hole of the upper cover 20 of the three-neck reaction container, the length is 300 mm, the diameters are 20 mm, 10 mm, 20 mm and 5 mm from top to bottom, wherein the diameters of the 20 mm sections, the 10 mm sections and the 20 mm sections are 40 mm, the diameters of the tetrafluoro stirring rods 6 are different, the stirring efficiency can be improved, and better control performance is obtained; the tetrafluoro material is adopted, so that the material can resist severe conditions such as strong acid and the like, and the characteristics of the tested substances are fully considered. The stepper motor driver 36 is installed on the back of the fixed bottom plate 11, connected with the stepper motor 8, and controls the stepper motor 8 to operate. The stepping motor 8 is arranged on the front surface of the fixed bottom plate 11, and the main shaft is connected with the tetrafluoro stirring rod 6. When the stepping motor 8 operates, the tetrafluoro stirring rod 6 is driven to stir the substances in the three-neck reaction vessel 21. The hand wheel 4 is installed on the fixed bottom plate 11, the distance from the bottom plate 2 is 150 mm, the diameter is 30 mm, the hand wheel 4 is positioned on the right side of the three-neck reaction container 21, and the rotation of the synchronous wheel 13 and the synchronous belt 14 is manually controlled through the hand wheel 4. The synchronizing wheel 13 and the synchronizing belt 14 are connected with the tetrafluoro stirring rod 6 and are used for adjusting the height of the tetrafluoro stirring rod 6 in the three-neck reaction container 21; the hand wheel 4 is arranged on the right upper part of the front surface of the fixed bottom plate 11; the synchronous belt 14 and the synchronous wheels 13 are positioned on the right upper part of the fixed bottom plate 11, the synchronous wheels are three in total, the diameters of the synchronous wheels are 50 mm, 30 mm, 20 mm, 50 mm and 20 mm respectively, the synchronous wheels are arranged on the upper side, the synchronous wheels of 20 mm are arranged on the lower side, and the synchronous wheels of 30 mm are arranged on the right side; the synchronizing wheel 14 is fixed on a concave iron piece on the back of the fixed bottom plate 11, and the concave iron piece is fixed on the fixed bottom plate 11 through bolts.
The size of the bottom plate 2 is 600 multiplied by 400 mm, the thickness of the bottom plate is 30 mm, the bottom plate is made of low alloy steel, the edge of the bottom plate 2 is provided with an inward-inclined baffle, the height of the baffle is 30 mm, the thickness of the baffle is 5 mm, and an included angle of 80 degrees is formed between the baffle and the horizontal plane. Four foot pads 1 are arranged on the lower portion of the bottom plate 2, the height of each foot pad is 20 mm, the diameter of each foot pad is 70 mm, and the material is low carbon steel.
The main control device comprises a display screen 10, a mass flowmeter 38, an alternating-current contactor 39, a sensor 33, a direct-current motor 32, a pressure stabilizing valve 22, an electromagnetic regulating valve 25, an electromagnetic valve 26 and a main board, wherein the display screen is used for displaying and inputting information. The main board is mounted on the fixed bottom board 11, electrically connected with other components of the main control device, and controls the other components. The mass flowmeter 38 is installed at the rear side of the bottom plate 2, connected to the nitrogen gas port 27, and monitors the injection amount of nitrogen gas. The alternating current contactor 39 is installed on the right side of the mass flowmeter 38 and is used for controlling on-off of a circuit. The sensor 33 is mounted on the back of the fixed bottom plate 11 for limiting. The electromagnetic regulating valve 25 and the electromagnetic valve 26 are used for regulating and controlling the on-off of the air passage. The control switch comprises a three-in-one switch 30, an emergency stop switch 12 and a self-locking switch 9, wherein the three-in-one switch 30 is arranged on the right side of the back surface of the fixed bottom plate 11 and is used for being connected with an external power supply. The emergency stop switch 12 is arranged on the top of the fixed bottom plate 11 and is used for carrying out emergency stop on the cyanide reactivity tester. The self-locking switch 9 is arranged below the display screen 10 and is used for controlling the cyanide reactivity tester to be turned on and off. The sensor 33 is mounted on the back of the fixed base plate 11 and is mainly used for limiting. The control power supply 31 is installed on the right side of the back of the fixed bottom plate 11 and is used for supplying power to the control module.
The valve knob 18 is controlled by the dc motor 32, the sensor 33, the gear 34 and the bearing housing 35. The pressure stabilizing valve 22 is installed at the left lower part of the front surface of the fixed bottom plate 11 and is positioned below the separating funnel 16, and is used for adjusting the air pressure. The buzzer 37 is installed on the back of the fixed base plate 11 and located on the right side of the stepper motor driver 36, and is used for alarming when danger occurs. The diversion trench 3 is designed on the bottom plate 2 and is arranged along the inner side of the inward-inclined baffle, and the diversion trench 3 has a depth of 3 mm and a width of 10 mm and is externally connected with a waste liquid tank or a sewer. If the three-neck reaction vessel 21 is broken, the solution flows out along the diversion trench 3, so that equipment is prevented from being polluted. The gas washing bottle 7 is internally provided with 0.25 mol/L NaOH solution, and after the cyanide reaction in the three-neck reaction container 21 is finished, the generated gas is introduced into the gas washing bottle 7 for measuring the analyte and evaluating the reactivity risk. The exhaust gas discharge port 40 is installed at the right side of the bottom plate 2. After all measurements are completed, the generated exhaust gas is discharged through the exhaust gas discharge port 40.
The cyanide reactivity tester comprises the following specific operation steps:
1. test preparation: (1) opening the power supply of the instrument, connecting a nitrogen pipe and pressing a start button; (2) weighing the solid waste and putting the solid waste into a reaction container; (3) the peristaltic pump liquid inlet pipe is put into sulfuric acid solution with the concentration of 0.005 mol/L; (4) filling 0.25 mol/L NaOH solution into the gas washing bottle; (5) the instrument trachea is connected and checked for looseness.
2. Setting a tester: selecting 'automatic' on a display screen, and setting related parameters in 'parameter setting';
3. starting the test: clicking a test start button, and automatically completing the test steps by the instrument; the instrument sends out a drop prompt tone, and the experiment is completed;
4. end of test: taking the gas washing bottle away and performing a reference test; treating the waste liquid in the reaction vessel; placing a peristaltic pump liquid inlet pipe into the cleaning liquid; loading the reaction vessel on the instrument, and clicking a cleaning system in a display screen; the instrument automatically finishes cleaning; and (5) finishing cleaning and treating the cleaning waste liquid.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.
Claims (4)
1. The cyanide reactivity tester is characterized by comprising a reaction mechanism, a sample injection mechanism, a stirring module, a control module, a gas washing mechanism, an accessory module and an alarm device; the reaction mechanism comprises a three-neck reaction container, a reaction container base, a reaction container upper cover and a reaction container fixing clamp; the sample injection mechanism comprises a peristaltic pump, a separating funnel, a valve knob, an acid liquor interface, a nitrogen interface, a peristaltic pump communication interface, a ground glass plug and a funnel fixing clamp; the stirring module comprises a tetrafluoro stirring rod, a stepping motor driver, a synchronous wheel, a synchronous belt and a hand wheel; the control module comprises a control switch, a control power supply and a main control device; the gas washing mechanism comprises a gas washing cylinder and is arranged on the right side of the tester; the auxiliary module comprises a bottom plate, foot pads, a fixed bottom plate, a diversion trench, a gear, a bearing seat and an exhaust outlet; the alarm device comprises a buzzer;
wherein the three-neck reaction vessel is placed on the reaction vessel base, and the reaction vessel upper cover is placed on the three-neck reaction vessel; the reaction container fixing clamp is arranged on the fixing bottom plate and is formed by combining two semicircular rings, and a bolt fastening structure is used at the joint of the semicircular rings and is used for fixing the three-neck reaction container and the reaction container upper cover; the reaction vessel upper cover is fixed on a reaction vessel fixing plate through a clip, and the reaction vessel fixing plate is arranged on the fixing bottom plate; the reaction vessel is covered with three holes, the left hole is connected with the separating funnel, the middle hole is connected with the tetrafluoro stirring rod, the right hole is connected with the gas washing mechanism, and all the holes adopt ground glass plug interfaces; the size of the fixed bottom plate is 500 multiplied by 500 mm, the material is high polymer material, and the fixed bottom plate is vertically arranged in the middle of the bottom plate; the reaction vessel base is a cylinder with the diameter of 80 mm and the height of 20 mm, is made of rubber and is arranged on the front side of the bottom plate; the three-neck reaction container and the upper cover of the reaction container are glassware;
the peristaltic pump is connected with the peristaltic pump communication interface to control the injection range of the acid liquor, and the acid liquor interface is used for acid liquor injection; the separating funnel is fixed on the fixed bottom plate through the funnel fixing clamp, one end of the separating funnel adopts a ground glass plug interface, and the other end of the separating funnel is provided with the valve knob; the two funnel fixing clamps are respectively arranged at one third and two thirds of the length of the separating funnel from the upper end; the funnel fixing clamp is in a form of two strip-shaped wood blocks for clamping the separating funnel and is fixed in a bolt fastening form;
the polytetrafluoroethylene stirring rod is vertically arranged in the middle hole of the upper cover of the three-neck reaction container, the length is 300 mm, the diameters of the stirring rod are 20 mm, 10 mm, 20 mm and 5 mm in sequence from top to bottom, and the lengths of the sections with the diameters of 20 mm, 10 mm and 20 mm are 40 mm; the stepping motor driver is arranged on the back of the fixed bottom plate and connected with the stepping motor to control the stepping motor to operate; the stepping motor is arranged on the front surface of the fixed bottom plate, and the main shaft is connected with the tetrafluoro stirring rod; when the stepping motor operates, the tetrafluoro stirring rod is driven to stir substances in the three-neck reaction container; the hand wheel is arranged on the fixed bottom plate, is 150 mm away from the bottom plate, has a diameter of 30 mm and is positioned on the right side of the three-neck reaction container, and the rotation of the synchronous wheel and the synchronous belt is manually controlled through the hand wheel; the synchronous wheel and the synchronous belt are connected with the tetrafluoro stirring rod and are used for adjusting the height of the tetrafluoro stirring rod in the three-neck reaction container; the hand wheel is arranged at the right upper part of the front surface of the fixed bottom plate; the synchronous belt and the synchronous wheels are positioned at the right upper part of the fixed bottom plate, the total number of the synchronous wheels is three, the diameters of the synchronous wheels are 50 mm, 30 mm, 20 mm, 50 mm and 20 mm respectively, the synchronous wheels are arranged at the upper side, the synchronous wheels with 20 mm are arranged at the lower side, and the synchronous wheels with 30 mm are arranged at the right side; the synchronous wheel is fixed on a concave iron sheet on the back of the fixed bottom plate, and the concave iron sheet is fixed on the fixed bottom plate through bolts;
the bottom plate is 600 multiplied by 400 mm in size and 30 mm in thickness, is made of low alloy steel, and is provided with an inward-inclined baffle plate at the edge, wherein the height of the baffle plate is 30 mm, the thickness of the baffle plate is 5 mm, and an included angle of 80 degrees is formed between the baffle plate and the horizontal plane; four foot pads are arranged on the lower portion of the bottom plate, the height of each foot pad is 20 mm, the diameter of each foot pad is 70 mm, and the foot pads are made of low-carbon steel;
the main control device comprises a display screen, a mass flowmeter, an alternating current contactor, a sensor, a direct current motor, a pressure stabilizing valve, an electromagnetic regulating valve, an electromagnetic valve and a main board, wherein the display screen, the mass flowmeter, the alternating current contactor, the sensor, the direct current motor, the pressure stabilizing valve, the electromagnetic valve and the main board are used for displaying and inputting information, and the main board is electrically connected with other parts of the main control device to control the other parts; the mass flowmeter is arranged on the rear side of the bottom plate, the alternating current contactor is arranged on the right side of the mass flowmeter, the control switch comprises a three-in-one switch, a scram switch and a self-locking switch, the three-in-one switch is arranged on the right side of the back surface of the fixed bottom plate, the scram switch is arranged on the top of the fixed bottom plate, and the self-locking switch is arranged below the display screen; the sensor is arranged on the back of the fixed bottom plate, and the control power supply is arranged on the right side of the back of the fixed bottom plate and is used for supplying power to the control module;
the pressure stabilizing valve is arranged below the separating funnel and used for adjusting the air pressure; the pressure stabilizing valve is arranged at the left lower part of the front surface of the fixed bottom plate;
the diversion trench is designed on the bottom plate and is arranged along the inner side of the inward-inclined baffle, the depth of the diversion trench is 3 mm, the width of the diversion trench is 10 mm, and the diversion trench is externally connected with a waste liquid tank or a sewer.
2. The cyanide reactivity tester of claim 1 wherein: the buzzer is arranged on the back of the fixed bottom plate and is positioned on the right side of the stepping motor driver and used for alarming when danger occurs.
3. The cyanide reactivity tester of claim 1 wherein: the valve knob is controlled by the direct current motor, the sensor, the gear and the bearing seat; the valve knob controls the acid liquor to be injected into the three-neck reaction vessel.
4. The cyanide reactivity tester of claim 1 wherein: the inside of the gas washing bottle is provided with 0.25 mol/L NaOH solution; the exhaust gas outlet is installed on the right side of the bottom plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711391186.8A CN108132354B (en) | 2017-12-21 | 2017-12-21 | Cyanide reactivity tester |
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| CN201711391186.8A CN108132354B (en) | 2017-12-21 | 2017-12-21 | Cyanide reactivity tester |
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| CN108132354A CN108132354A (en) | 2018-06-08 |
| CN108132354B true CN108132354B (en) | 2023-06-20 |
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| US8460538B2 (en) * | 2010-06-14 | 2013-06-11 | King Fahd University Of Petroleum And Minerals | Method for detection of cyanide in water |
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