A device for reducing tin in ore

Abstract

The present application is about a device for reducing and treating tin in ore. The device for reducing and treating tin in ore includes: a test bench, a volumetric flask, a carbon dioxide supply system and a control system; the volumetric flask is placed on the test bench, the carbon dioxide supply system is installed on the test bench, the volumetric flask is connected to the carbon dioxide supply system, the control system is installed on the test bench, and the test bench and the carbon dioxide supply system are connected respectively. The solution provided by the present application can perform batch operations on samples through the test bench in cooperation with the carbon dioxide supply system, batch heat and cool the samples in the volumetric flask through the electric heating plate and cooling water tank of the test bench, and use the buffer bottle and flow observation water tank of the carbon dioxide supply system to realize uniform supply of carbon dioxide, ensure the stability of the air pressure in the volumetric flask, and completely discharge the air in the volumetric flask with carbon dioxide, so as to realize batch processing of tin samples.

Description

Technical Field

[0001] The present application relates to the technical field of tin element detection, and in particular to a device for reducing and treating tin elements in ores. Background Art

[0002] In nature, tin is mainly present as tin oxide (SnO 2 ) exists in the form of tin intermediate products selected by the mine dressing plant, and the associated elements are also relatively complex. 2 The chemical properties of tin are relatively stable, which makes it difficult to test and analyze. Potassium iodate titration analysis technology is the most conventional and stable method for detecting tin. During the sample pretreatment process, the sample needs to be weighed into a crucible, covered with zinc powder-sodium hydroxide and sintered. The sintered sample needs to be placed in a conical flask filled with dilute hydrochloric acid for heating reaction. The reacted sample needs to be placed in running water under the protection of carbon dioxide gas and cooled to room temperature. Whether the carbon dioxide gas supply is sufficient determines the protection integrity of the sample. If the supply is insufficient, the sample will be oxidized. If the supply is too high, the pressure will increase and the conical flask will explode. The heating temperature determines the sample treatment effect. When the temperature is too high, the violent reaction in the conical flask filled with dilute hydrochloric acid causes SnO 2 Premature reaction to form SnCl 2 , which affects the reduction of tetravalent tin to divalent tin, resulting in low results; when the temperature is too low, it will affect the leaching effect of the sample and the reaction time will be slow.

[0003] The current tin reduction device mainly uses an electric heating plate for heating, and uses a carbon dioxide cylinder or a covered funnel to add sodium bicarbonate to produce carbon dioxide. It cannot process large batches of samples at the same time, and the sample processing process needs to be manually controlled. There are deviations in the control of the heating temperature and the amount of carbon dioxide supply, and the stability of the sample processing process cannot be guaranteed, resulting in low processing efficiency and safety factor. Utility Model Content

[0004] The present application provides a device for reducing and treating tin in ore, aiming to solve the problems of being unable to process tin detection samples in large quantities and being unable to effectively control the heating temperature and the carbon dioxide supply.

[0005] The present application provides a device for reducing tin in ore, comprising:

[0006] Test bench, volumetric flask, CO2 supply system and control system;

[0007] The volumetric bottle is placed on the test bench, the carbon dioxide supply system is installed on the test bench, the volumetric bottle is connected to the carbon dioxide supply system, and the control system is installed on the test bench and connected to the test bench and the carbon dioxide supply system respectively;

[0008] The test bench includes an electric heating plate, a cooling water tank, a water supply valve and a drain valve. The electric heating plate is arranged on one side of the top of the test bench, and the cooling water tank is arranged on the other side of the test bench. The cooling water tank is provided with a water supply valve and a drain valve.

[0009] The carbon dioxide supply system includes a buffer bottle, a flow observation water tank, a carbon dioxide delivery pipe and a carbon dioxide delivery valve. The carbon dioxide delivery pipe and the flow observation water tank are installed on a bracket above the test bench. The carbon dioxide delivery valve is installed on the carbon dioxide delivery pipe. The carbon dioxide delivery valve is connected to an external carbon dioxide delivery pipeline. The flow observation water tank is connected to the carbon dioxide delivery pipe. The buffer bottle is connected to the flow observation water tank and the volumetric bottle respectively.

[0010] The control system includes a touch screen, a PLC controller, an electric heating plate temperature sensor, a cooling water tank temperature sensor and a power regulator. The electric heating plate temperature sensor and the cooling water tank temperature sensor are respectively installed on the electric heating plate and the cooling water tank. The PLC controller is installed in the test bench. The input end is connected to the electric heating plate temperature sensor and the cooling water tank temperature sensor, and the output end is connected to the touch screen, the power regulator, the carbon dioxide delivery valve, the water supply valve and the drain valve.

[0011] Optionally, in some embodiments, the volumetric flask array is on a test bench and is moved in batches to an electric heating plate or a cooling water tank by a fixture when in use;

[0012] The number of buffer bottles corresponds to the volumetric bottles, and the buffer bottles are arranged in an inverted array above the flow observation tank.

[0013] Optionally, in some embodiments, two conduits are provided on the stopper of the buffer bottle, one of which is connected to the flow observation tank and the other is connected to the volumetric flask;

[0014] Two pipes are also arranged on the stopper of the volumetric flask, which are respectively connected to the carbon dioxide delivery pipe and the buffer bottle. The pipe connected to the buffer bottle extends to the lower end of the volumetric flask, and the pipe connected to the carbon dioxide delivery pipe extends to the bottle mouth.

[0015] Optionally, in some embodiments, a second manual regulating valve is provided on the pipeline connecting the buffer bottle and the flow observation water tank, for manually controlling the flow of carbon dioxide in the flow observation water tank into the corresponding buffer bottle;

[0016] A manual regulating valve is installed on the pipe connecting the volumetric flask and the carbon dioxide delivery pipe, which is used to control the air in the volumetric flask and the excess carbon dioxide to flow into the carbon dioxide delivery pipe to ensure the normal air pressure in the volumetric flask.

[0017] Optionally, in some embodiments, the electric heating plate comprises:

[0018] Silicon carbide heating plate, electric heating wire and electric heating plate temperature sensor;

[0019] The electric heating wire is installed on one side of the top of the test bench. The electric heating wire is connected to the PLC controller through a power regulator, and the power of the electric heating wire is regulated by the power regulator;

[0020] The silicon carbide heating plate is installed on the electric heating wire, and the electric heating plate temperature sensor is installed at the bottom of the silicon carbide heating plate. The temperature of the silicon carbide heating plate is detected by the electric heating plate temperature sensor and input into the PLC controller.

[0021] Optionally, in some embodiments, cooling water delivery pipes are provided at both ends of the cooling water trough, and the water supply valve and the drain valve are respectively installed on the cooling water delivery pipes at both ends of the cooling water trough, and the water supply valve and the drain valve are controlled to open and close by a PLC controller.

[0022] Optionally, in some embodiments, the output end of the PLC controller is connected to a sound and light alarm device, which is installed on the test bench to remind experimenters.

[0023] The technical solution provided by this application may have the following beneficial effects:

[0024] The samples are batch operated by the test bench in cooperation with the carbon dioxide supply system, the samples in the volumetric flask are batch heated and cooled by the electric heating plate and cooling water tank of the test bench, the buffer bottle and flow observation water tank of the carbon dioxide supply system are used to realize uniform supply of carbon dioxide, ensure the stability of the air pressure in the volumetric flask, and the carbon dioxide can completely expel the air in the volumetric flask to realize batch processing of tin samples; and temperature sensors are set on the electric heating plate and the cooling water tank to monitor the heating temperature and cooling temperature of the samples in real time, and the PLC controller is cooperated to realize accurate temperature control, which ensures the stability and efficiency of sample processing and improves the reduction processing speed of potassium iodate titration analysis samples of tin element in ore.

[0025] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0027] Figure 1 It is a schematic structural diagram of a device for reducing tin in ore shown in an embodiment of the present application;

[0028] Figure 2 is a cross-sectional schematic diagram of a device for reducing tin in ore shown in an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the PLC controller connection circuit of the tin element reduction treatment device in the ore shown in the embodiment of the present application.

[0030] Figure markings: 1-test bench, 2-volume flask, 3-buffer bottle, 4-flow observation water tank, 5-carbon dioxide delivery pipe, 6-carbon dioxide delivery valve, 7-electric heating plate, 71-silicon carbide heating plate, 72-electric heating wire, 73-electric heating plate temperature sensor, 8-cooling water tank, 81-cooling water tank temperature sensor, 82-cooling water delivery pipe, 83-water supply valve, 84-drain valve, 9-touch screen, 10-PLC controller, 11-manual regulating valve one, 12-manual regulating valve two, 13-sound and light alarm device. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0032] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The current tin reduction device mainly uses an electric heating plate for heating, and uses a carbon dioxide cylinder or a covered funnel to add sodium bicarbonate to produce carbon dioxide. It cannot process large batches of samples at the same time, and the sample processing process needs to be manually controlled. There are deviations in the control of the heating temperature and the amount of carbon dioxide supply, and the stability of the sample processing process cannot be guaranteed, resulting in low processing efficiency and safety factor.

[0036] In view of the above problems, an embodiment of the present application provides a device for reducing tin in ore, which can perform batch operations on samples through a test bench in cooperation with a carbon dioxide supply system, batch heat and cool the samples in a volumetric flask through an electric heating plate and a cooling water tank of the test bench, and utilize a buffer bottle and a flow observation water tank of the carbon dioxide supply system to achieve uniform supply of carbon dioxide, thereby ensuring that the air pressure in the volumetric flask is stable, and carbon dioxide can completely expel the air in the volumetric flask, thereby achieving batch processing of tin samples; and temperature sensors are arranged on the electric heating plate and the cooling water tank to monitor the heating temperature and cooling temperature of the sample in real time, and cooperate with a PLC controller to achieve accurate temperature control, thereby ensuring the stability and efficiency of sample processing, and improving the reduction processing speed of samples analyzed by potassium iodate titration method for tin in ore.

[0037] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0038] Figure 1 It is a schematic diagram of the structure of a device for reducing tin in ore shown in an embodiment of the present application.

[0039] See also Figure 1 , a device for reducing tin in ore, comprising:

[0040] Test bench 1, volumetric flask 2, buffer bottle 3, flow observation water tank 4, carbon dioxide delivery pipe 5, carbon dioxide delivery valve 6, electric heating plate 7, silicon carbide heating plate 71, electric heating wire 72, electric heating plate temperature sensor 73, cooling water tank 8, cooling water tank temperature sensor 81, cooling water delivery pipe 82, water supply valve 83, drain valve 84, touch screen 9, PLC controller 10, manual regulating valve 1 11, manual regulating valve 2 12 and sound and light alarm device 13;

[0041] The volumetric flask 2 is a conical flask, which is arrayed on the test bench 1 and moved in batches by the conical flask clamps when in use. The electric heating plate 7 is arranged on one side of the top of the test bench 1, and the electric heating plate 7 includes a silicon carbide heating plate 71, an electric heating wire 72 and an electric heating plate temperature sensor 73; the electric heating wire 72 is evenly arranged on one side of the top of the test bench 1, and the electric heating wire 72 is connected to the output end of the PLC controller 10 through a power regulator, and the power of the electric heating wire 72 is regulated by the power regulator. The silicon carbide heating plate 71 is installed on the electric heating wire 72, and the electric heating plate temperature sensor 73 is installed at the bottom of the silicon carbide heating plate 71. The temperature of the silicon carbide heating plate 71 is detected by the electric heating plate temperature sensor 73 and input to the PLC controller 10. The PLC controller 10 sends instructions to the power regulator, and controls the input current of the electric heating wire 72 through the power regulator, thereby controlling the power of the electric heating plate 7.

[0042] The cooling water trough 8 is arranged on the other side of the test bench 1. Cooling water delivery pipes 82 are arranged at both ends of the cooling water trough 8, wherein the drainage pipe is arranged at the bottom side of the cooling water trough 8. The water supply valve 83 and the drainage valve 84 are respectively installed on the cooling water delivery pipes 82 at both ends of the cooling water trough 8. The water supply valve 83 and the drainage valve 84 are connected to the PLC controller 10, and their opening and closing are controlled by the PLC controller 10.

[0043] The carbon dioxide delivery pipe 5 and the flow observation water tank 4 are installed on the bracket above the test bench 1, and the carbon dioxide delivery valve 6 is installed on the carbon dioxide delivery pipe 5. The carbon dioxide delivery valve 6 is connected to the external carbon dioxide delivery pipeline, and the carbon dioxide delivery pipeline is connected to the carbon dioxide storage bottle. The flow observation water tank 4 is connected to the carbon dioxide delivery pipe 5. The flow observation water tank 4 is filled with one-third to two-thirds of water. The carbon dioxide flow rate is judged by the bubbles in the water, and the carbon dioxide gas can flow into the buffer bottle 3 evenly after passing through the flow observation water tank 4. The number of buffer bottles 3 corresponds to the volumetric bottle 2, and the buffer bottles 3 are inverted above the flow observation water tank 4. Two conduits are set on the bottle stopper of the buffer bottle 3, one of which is connected to the flow observation water tank 4. A manual regulating valve 2 12 is set on the pipe connecting the buffer bottle 3 and the flow observation water tank 4, which is used to manually control the flow of carbon dioxide in the flow observation water tank 4 into the corresponding buffer bottle 3. Another pipe of the buffer bottle 3 is connected to the volumetric bottle 2 and extends to the lower end of the volumetric bottle 2. The air in the volumetric bottle 2 is discharged according to the carbon dioxide density characteristics. Another pipe on the volumetric bottle 2 is connected to the carbon dioxide delivery pipe 5, which is set at the mouth of the volumetric bottle 2. A manual regulating valve 11 is installed on the pipeline connecting the volumetric flask 2 and the carbon dioxide delivery pipe 5, which is used to control the air and excess carbon dioxide in the volumetric flask 2 to flow into the carbon dioxide delivery pipe 5, ensuring that the air pressure in the volumetric flask 2 is normal.

[0044] The electric heating plate temperature sensor 73 and the cooling water tank temperature sensor 81 are installed on the electric heating plate 7 and the cooling water tank 8 respectively, and the PLC controller 10 is installed in the test bench 1. The input end of the PLC controller 10 is connected to the electric heating plate temperature sensor 73 and the cooling water tank temperature sensor 81, and the output end is connected to the touch screen 9, the power regulator, the carbon dioxide delivery valve 6, the water supply valve 83 and the drain valve 84. The output end of the PLC controller 10 is also connected to the sound and light alarm device 13, which is installed on the test bench 1 to remind the experimenter.

[0045] When using this application: weigh a certain amount of tin-containing ore sample, pour it into a corundum crucible, calcine it in a muffle furnace, cool it, and then put it into a volumetric flask 2 filled with hydrochloric acid. Slowly heat it on the electric heating plate 7 until the solution is clear. The heating setting temperature and heating time are set through the touch screen 9. The heating temperature is detected by the electric heating plate temperature sensor 73. When the temperature exceeds the setting range, the PLC controller 10 issues a command to adjust the power of the electric heating plate 7 through the power regulator. After the heating time is reached, the PLC controller 10 drives the sound and light alarm device 13 to remind the staff to add aluminum particles, and the aluminum particles react with the sample. After the reaction is completed, continue to heat on the electric heating plate 7. The secondary heating setting temperature and heating time are also set through the touch screen 9. During the heating process, open the manual regulating valve 11 to connect the carbon dioxide delivery pipe 5 with the volumetric flask 2 to ensure that the pressure in the volumetric flask 2 is stable. After the volumetric flask 2 boils after the set heating time, the PLC controller 10 drives the carbon dioxide delivery valve 6 to open, and at the same time drives the sound and light alarm device 13 to actuate to remind the staff to inject carbon dioxide gas into the carbon dioxide delivery pipe 5 and manually open the manual regulating valve 2 12. Due to the high air pressure in the volumetric flask 2, the carbon dioxide in the carbon dioxide delivery pipe 5 flows into the buffer bottle 3 through the flow observation tank 4. The staff checks the carbon dioxide flow through the flow observation tank 4, and the carbon dioxide gas then enters the lower part of the volumetric flask 2 through the buffer bottle 3 to discharge the air in the bottle. After the air in the volumetric flask 2 is exhausted, the manual regulating valve 1 11 and the manual regulating valve 2 12 are closed, and the volumetric flask 2 is sealed. The staff uses a conical flask clamp to place the volumetric flask 2 under the protection of carbon dioxide gas above the cooling water tank temperature sensor 81, detects the temperature of the volumetric flask 2, opens the water supply valve 83 and the drain valve 84 through the touch screen 9 and the PLC controller 10, cools the volumetric flask 2 to the set temperature through flowing water, drives the water supply valve 83 and the drain valve 84 to close, and drives the sound and light alarm device 13 to operate at the same time, reminding the staff that the tin-containing ore sample processing is completed, and this volumetric flask 2 can proceed to the next titration experiment.

[0046] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A device for reducing tin in ore, characterized in that: include: A test bench (1), a volumetric flask (2), a carbon dioxide supply system and a control system; The volumetric flask (2) is placed on the test bench (1), the carbon dioxide supply system is installed on the test bench (1), the volumetric flask (2) is connected to the carbon dioxide supply system, and the control system is installed on the test bench (1) and is respectively connected to the test bench (1) and the carbon dioxide supply system; The test bench (1) comprises an electric heating plate (7), a cooling water tank (8), a water supply valve (83) and a drainage valve (84); the electric heating plate (7) is arranged on one side of the top of the test bench (1); the cooling water tank (8) is arranged on the other side of the test bench (1); and the cooling water tank (8) is provided with a water supply valve (83) and a drainage valve (84); The carbon dioxide supply system comprises a buffer bottle (3), a flow observation water tank (4), a carbon dioxide delivery pipe (5) and a carbon dioxide delivery valve (6); the carbon dioxide delivery pipe (5) and the flow observation water tank (4) are installed on a bracket above the test bench (1); the carbon dioxide delivery valve (6) is installed on the carbon dioxide delivery pipe (5); the carbon dioxide delivery valve (6) is connected to an external carbon dioxide delivery pipeline; the flow observation water tank (4) is connected to the carbon dioxide delivery pipe (5); and the buffer bottle (3) is respectively connected to the flow observation water tank (4) and the volumetric flask (2); The control system comprises a touch screen (9), a PLC controller (10), an electric heating plate temperature sensor (73), a cooling water tank temperature sensor (81) and a power regulator. The electric heating plate temperature sensor (73) and the cooling water tank temperature sensor (81) are respectively installed on the electric heating plate (7) and the cooling water tank (8). The PLC controller (10) is installed in a test bench (1), and its input end is connected to the electric heating plate temperature sensor (73) and the cooling water tank temperature sensor (81), and its output end is connected to the touch screen (9), the power regulator, the carbon dioxide delivery valve (6), the water supply valve (83) and the drainage valve (84).

2. The device for reducing tin in ore according to claim 1, characterized in that: The volumetric flasks (2) are arranged in an array on the test bench (1) and are moved in batches to the electric heating plate (7) or the cooling water tank (8) by means of a fixture when in use; The number of the buffer bottles (3) corresponds to the number of the volumetric bottles (2), and the buffer bottles (3) are arranged in an inverted array above the flow observation water tank (4).

3. The device for reducing tin in ore according to claim 1 or 2, characterized in that: Two conduits are provided on the bottle stopper of the buffer bottle (3), one of which is connected to the flow observation water tank (4) and the other is connected to the volumetric flask (2); The stopper of the volumetric flask (2) is also provided with two pipes, which are respectively connected to the carbon dioxide delivery pipe (5) and the buffer bottle (3); the pipe connected to the buffer bottle (3) extends to the lower end of the volumetric flask (2), and the pipe connected to the carbon dioxide delivery pipe (5) extends to the bottle mouth.

4. The device for reducing tin in ore according to claim 3, characterized in that: A second manual regulating valve (12) is provided on the pipeline connecting the buffer bottle (3) and the flow observation water tank (4) for manually controlling the flow of carbon dioxide in the flow observation water tank (4) into the corresponding buffer bottle (3); A manual regulating valve (11) is installed on the pipeline connecting the volumetric flask (2) and the carbon dioxide delivery pipe (5) for controlling the air and excess carbon dioxide in the volumetric flask (2) to flow into the carbon dioxide delivery pipe (5) to ensure that the air pressure in the volumetric flask (2) is normal.

5. The device for reducing tin in ore according to claim 1, characterized in that: The electric heating plate (7) comprises: A silicon carbide heating plate (71), an electric heating wire (72) and an electric heating plate temperature sensor (73); The electric heating wire (72) is installed on one side of the top of the test bench (1), and the electric heating wire (72) is connected to the PLC controller (10) through the power regulator, and the power of the electric heating wire (72) is regulated by the power regulator; The silicon carbide heating plate (71) is mounted on the electric heating wire (72), and the electric heating plate temperature sensor (73) is mounted on the bottom of the silicon carbide heating plate (71). The temperature of the silicon carbide heating plate (71) is detected by the electric heating plate temperature sensor (73) and input into the PLC controller (10).

6. The device for reducing tin in ore according to claim 1, characterized in that: Cooling water delivery pipes (82) are provided at both ends of the cooling water tank (8), and the water supply valve (83) and the drainage valve (84) are respectively installed on the cooling water delivery pipes (82) at both ends of the cooling water tank (8), and the opening and closing of the water supply valve (83) and the drainage valve (84) are controlled by the PLC controller (10).

7. The device for reducing tin in ore according to claim 1, characterized in that: The output end of the PLC controller (10) is connected to an audible and visual alarm device (13), which is installed on the test bench (1) and is used to remind experimenters.

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