Experimental device for coal gangue component extraction

Abstract

The embodiment of the utility model discloses an experimental device for coal gangue component extraction, which can effectively improve the stability and the extraction efficiency of the extraction process so as to ensure the data accuracy. The experimental device comprises a heating device, a reaction container, a condensing device, a buffer device and an absorption device, the reaction container comprises a three-neck flask and is used for containing component extraction reactants; the heating device is used for heating the reaction container; one end of the condensing device is connected with the first opening of the three-neck flask, the other end of the condensing device is communicated with the inlet end of the buffer device through a first pipeline, and the condensing device is used for condensing and refluxing water vapor volatilized from the three-neck flask of the reaction container; the outlet end of the buffer device is communicated with the inlet end of the absorption device through a second pipeline; the method is suitable for coal gangue component extraction scenes.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of coal gangue component extraction, and specifically to an experimental device for extracting coal gangue components. Background Art

[0002] Gangue, a solid waste generated during coal mining and processing, contains large amounts of sulfides. Sulfides in gangue can generate acidic substances during oxidation, causing environmental pollution. Therefore, the extraction and analysis of sulfur-containing minerals in gangue are of great significance.

[0003] The extraction device of the experimental device used in the traditional coal gangue extraction method (such as Figure 1 ) is used to extract sulfur-containing minerals from coal gangue. The temperature control during the extraction process is unstable (water bath heating method), which affects the accuracy and repeatability of the experimental results. Utility Model Content

[0004] In view of this, an embodiment of the present application provides an experimental device for extracting coal gangue components, which facilitates the control of temperature stability during the heating process.

[0005] An experimental device for extracting coal gangue components, comprising: a heating device, a reaction container, a condensing device, a buffer device and an absorption device;

[0006] The reaction vessel includes a three-necked flask for holding reactants during gangue component extraction; the heating device is used to heat the reaction vessel; one end of the condensing device is connected to the first opening of the three-necked flask, and the other end is connected to the inlet end of the buffer device through a first pipeline, and is used to condense and reflux water vapor and HCl volatilized from the three-necked flask of the reaction vessel; the buffer device includes a wide-mouthed flask for holding pH4 buffer and an embedded absorption device, the outlet end of the buffer device is connected to the inlet end of the absorption device through a second pipeline; the absorption device is used to hold AgNO3 solution.

[0007] In a specific embodiment, the heating device includes a shell having an opening at the upper end and an electric heating wire embedded in the side wall of the shell; a base fixed to the bottom of the shell; the shell and the base enclose a accommodating cavity for accommodating the main part of the three-necked flask; the main part of the three-necked flask is placed in the accommodating cavity.

[0008] In a specific embodiment, the inner wall of the shell at one end close to the base has an annular raised band protruding toward the accommodating cavity, and the electric heating wire is arranged in the annular raised band.

[0009] Furthermore, the heating device also includes a temperature sensor, which is arranged at the end of a sensor support on the inner wall of the shell; the sensor support is embedded in the inner wall of the shell, and the end of the sensor support is flush with the inner wall of the shell.

[0010] In a specific embodiment, the reaction vessel further comprises a screw-capped thermometer sleeve, which is arranged in the second opening of the three-necked flask and is equipped with a temperature sensor; and a curved glass vacuum joint, which is arranged in the third opening of the three-necked flask.

[0011] In a specific embodiment, the condensation device includes a spherical condenser, the condensation fluid inlet end of the spherical condenser is connected to the first opening of the three-necked flask; the condensation fluid outlet end of the spherical condenser is connected to the inlet end of the curved glass vacuum joint; the outlet end of the curved glass vacuum joint is connected to the inlet end of the buffer device through the first pipeline.

[0012] Furthermore, the spherical condenser tube also includes a water inlet and a water outlet for the inflow and outflow of cooling fluid.

[0013] Preferably, the buffer device adopts a Mengshi washing bottle, and the absorption device adopts a brown impact absorption bottle.

[0014] Furthermore, the buffer device also includes a wide-mouth container and a first bottle stopper installed at the opening of the wide-mouth container, the first bottle stopper is provided with a first through hole and a second through hole; the first through hole is used for passing the first tube body; the absorption device is sleeved in the wide-mouth container, and the outlet pipe of the absorption device is embedded in the second through hole.

[0015] Compared with the prior art, the experimental device for extracting coal gangue components provided in the embodiment of the present application has the following beneficial effects:

[0016] First, the heating device can more stably control the heating temperature, thus ensuring the accuracy and repeatability of the experimental results;

[0017] Secondly, the reaction container, the condensing device, the buffer device, and the absorption device are standardized experimental containers and connectors, which do not need to be customized and are easy to obtain and assemble, thereby reducing experimental costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 Schematic diagram of the traditional component extraction experimental setup;

[0020] Figure 2 Schematic diagram of the experimental setup for component extraction;

[0021] Figure 3 Exploded three-dimensional schematic diagram of the heating device;

[0022] Description of main reference numerals:

[0023] 1-Heating device; 2-Three-necked flask; 3-Spherical condenser; 4-Curved glass exhaust connector; 5-Montenegro gas washing bottle; 6-Brown impact suction bottle; 7-Screw-type thermometer sleeve; 8-Temperature measurement sensor; 90-First pipeline; 91-Second pipeline; 10-Electric heater; 11-Shell; 13-Base; 14-Electrical device; 15-Wide-mouth flask. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] It should be clear that the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] In order to enable those skilled in the art to better understand the technical concepts, implementation plans and beneficial effects of the embodiments of the present application, specific examples are provided below for detailed description.

[0027] See Figure 2As shown, the embodiment of the present application provides an experimental device for extracting components from coal gangue, comprising: a heating device, a reaction vessel, a condensing device, a buffer device and an absorption device; the reaction vessel comprises a three-necked flask 2 for containing reactants for component extraction; the heating device is used to heat the reaction vessel; one end of the condensing device is connected to the first opening of the three-necked flask 2, and the other end is connected to the inlet end of the buffer device through a first pipe 90, for cooling the vapor volatilized from the three-necked flask 2 of the reaction vessel; the buffer device is used to contain the reactants for component extraction; pH4 buffer solution, the outlet end of the buffer device 5 is connected to the inlet end of the absorption device through a second pipeline 91; the absorption device is used to contain AgNO3 solution; wherein, the heating device 1 includes: a shell 11, the upper end of the shell 11 has an opening, and an electric heating wire is embedded in the side wall of the shell 11; the base 13 is fixed to the bottom of the shell 11; the shell 11 and the base 13 enclose a accommodating cavity for accommodating the main part of the three-necked flask 2; the main part of the three-necked flask 2 is placed in the accommodating cavity.

[0028] The experimental device composed of the above makes the control of heating temperature more stable and ensures the accuracy and repeatability of the experimental results.

[0029] Optionally, in one embodiment of the present application, the heating device 1 further includes an electric heater 10 and an electrical device 14 .

[0030] Optionally, in one embodiment of the present application, the inner wall of the shell 11 at one end close to the base 13 has an annular raised band protruding toward the accommodating cavity, and the electric heating wire is arranged in the annular raised band.

[0031] Optionally, in one embodiment of the present application, the heating device 1 further includes: a temperature sensor, which is arranged at the end of a sensor support on the inner wall of the shell 11; the sensor support is embedded in the inner wall of the shell, and the end of the sensor support is flush with the inner wall of the shell.

[0032] Optionally, in one embodiment of the present application, the reaction vessel further comprises: a screw-capped thermometer sleeve 7, which is arranged in the second opening of the three-necked flask 2, and the screw-capped thermometer sleeve 7 is equipped with a temperature measurement sensor 8; and a curved glass exhaust joint, which is arranged in the third opening of the three-necked flask 2.

[0033] The electrical device 14 controls the heating process of the electric heater 10 by comparing the temperature values ​​sent back by the temperature measurement sensor 8 in the reaction container 2 and the temperature sensor in the electric heater 10, making the temperature control more stable; accordingly, it also makes the operation more convenient and the energy consumption lower.

[0034] Optionally, in one embodiment of the present application, the condensation device includes: a spherical condenser 3, the condensation fluid inlet end of the spherical condenser 3 is connected to the first opening of the three-necked flask 2; the condensation fluid outlet end of the spherical condenser 3 is connected to the inlet end of the curved glass vacuum joint 4; the outlet end of the curved glass vacuum joint 4 is connected to the inlet end of the buffer device 5 through the first pipeline; wherein, the spherical condenser 3 also includes a water inlet 31 and a water outlet 30, the water inlet 31 is used to flow in cooling liquid, and the water outlet 30 is used to flow out cooling liquid, and the condensation effect of the spherical condenser is realized by the cooling liquid.

[0035] The spherical condenser 3 condenses and refluxes the evaporated water vapor and HCl, preventing the water vapor and HCl from entering the subsequent container along with the reaction precipitate, thereby reducing the solution concentration in the subsequent container and reducing the amount of HCl in the three-necked flask 2, thereby ensuring the accuracy of the experiment.

[0036] Preferably, the buffer device adopts a Mengshi washing bottle 5, and the absorption device adopts a brown impact absorption bottle 6.

[0037] The Mengshi washing bottle 5 is designed with a large absorption liquid surface space, which is convenient for completely absorbing the HCl gas mixed in the H2S gas, preventing the volatilized HCl gas from entering the AgNO3 solution to react and produce AgCl precipitation, affecting the mass weighing of the Ag2S precipitation; the brown impact-type absorption bottle 6 has a large absorption liquid surface space and an impact-type design, which is convenient for completely absorbing the H2S gas. The brown bottle body can effectively prevent the AgNO3 solution from decomposing when exposed to light and improve the absorption efficiency.

[0038] Optionally, in one embodiment of the present application, the buffer device includes: a wide-mouth container 15 and a first bottle stopper installed at the opening of the wide-mouth container 15, the first bottle stopper being provided with a first through hole and a second through hole; the first through hole is used for passing a first pipeline 90; the brown impact absorption bottle 6 is arranged in the wide-mouth container, and the outlet pipe of the brown impact absorption bottle 6 is embedded in the second through hole.

[0039] Preferably, the wide-mouth container 15 adopts a dark bottle body, which once again increases the light-shielding properties of the buffer device and the absorption device.

[0040] Preferably, the first pipeline 90 and the second pipeline 91 are made of silicone tubes, which have good high temperature resistance and corrosion resistance.

[0041] In actual use of the device, the component extraction reactant is loaded into the first opening of the three-necked flask 2, and then the inlet end of the spherical condenser 3 is connected to the first opening of the three-necked flask 2; the screw-capped thermometer sleeve 7 equipped with a temperature measurement sensor 8 is installed into the second opening of the three-necked flask 2; the main body of the three-necked flask 2 is placed in the receiving cavity of the electric heater 10; the valve of the water inlet pipe of the spherical condenser is opened, the valve of the nitrogen pipe is opened, and the switch of the heating device 1 is turned on; while the electric heater 10 heats the component extraction reactant, nitrogen is continuously blown in. , the continuously blown-in nitrogen can eliminate the interference of oxygen in the air on the reaction; at the preset heating temperature of the heating device 1, the component extraction reactants react, and the reaction precipitate first enters the spherical condenser 3, where the water vapor and HCl contained in the reaction precipitate are condensed and refluxed into the three-necked flask 2, and then enters the Mengshi washing bottle 5 of the buffer device to filter out the HCl gas contained in the reaction precipitate, and then enters the brown impact absorption bottle 6 of the absorption device, in which the reaction precipitate is completely absorbed.

[0042] Through the above technical solution, the experimental device for extracting coal gangue components makes the control of heating temperature more stable, thereby ensuring the accuracy and repeatability of the experimental results; secondly, the reaction container, the condensation device, the buffer device, and the absorption device are preferably standardized experimental containers and connectors, which do not require customization and are easy to obtain and assemble, thereby reducing experimental costs and improving the convenience of experimental operations.

[0043] It should be noted that, in this document, terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0044] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An experimental device for extracting coal gangue components, characterized in that: include: Heating device, reaction vessel, condensing device, buffer device and absorption device; The reaction container includes a three-necked flask for containing component extraction reactants; The heating device is used to heat the reaction container; One end of the condensing device is connected to the first opening of the three-necked flask, and the other end is connected to the inlet end of the buffer device through a first pipeline, and is used to condense and reflux the water vapor and HCl volatilized in the three-necked flask of the reaction container; The buffer device is used to contain pH 4 buffer, and the outlet end of the buffer device is connected to the inlet end of the absorption device through a second pipeline; The absorption device is used to contain AgNO3 solution; Wherein, the heating device comprises: A shell having an opening at its upper end and an electric heating wire embedded in a side wall of the shell; A base is fixed to the bottom of the shell; the shell and the base surround a receiving cavity for receiving the main body of the three-necked flask; the main body of the three-necked flask is placed in the receiving cavity.

2. The experimental device according to claim 1, characterized in that The inner wall of the shell at one end close to the base has an annular raised band protruding toward the accommodating cavity, and the electric heating wire is arranged in the annular raised band.

3. The experimental device according to claim 2, characterized in that The heating device further comprises: A temperature sensor is provided at the end of a sensor support on the inner wall of the shell; the sensor support is embedded in the inner wall of the shell, and the end of the sensor support is flush with the inner wall of the shell.

4. The experimental device according to claim 1, characterized in that The reaction vessel also includes: a screw-capped thermometer sleeve, the screw-capped thermometer sleeve being arranged in the second opening of the three-necked flask and equipped with a temperature measuring sensor; A curved glass vacuum joint is provided in the third opening of the three-necked flask.

5. The experimental device according to claim 1, characterized in that: The condensing device comprises: A spherical condenser, wherein the condensed fluid inlet end of the spherical condenser is connected to the first opening of the three-necked flask; and the condensed fluid outlet end of the spherical condenser is connected to the inlet end of the curved glass exhaust joint; The outlet end of the curved glass air extraction joint is connected to the inlet end of the buffer device through the first pipeline; The spherical condenser tube further includes a water inlet and a water outlet for the inflow and outflow of cooling liquid.

6. The experimental device according to claim 1, characterized in that The buffer device adopts a Mengshi washing bottle, and the absorption device adopts a brown impact absorption bottle.

7. The experimental device according to claim 1, characterized in that The buffer device comprises: A wide-mouth container and a first bottle stopper installed at the opening of the wide-mouth container, wherein the first bottle stopper is provided with a first through hole and a second through hole; the first through hole is used for passing a first pipeline; The absorption device is sleeved in the wide-mouth container, and the outlet pipe of the absorption device is embedded in the second through hole.

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