Uniform heating water bath gold separation and acid gas absorption device

Abstract

The utility model belongs to the technical field of fire assaying, and particularly relates to a uniform heating water bath gold separation and acid gas absorption device. Wherein the alkali liquor absorption bottle is communicated with the interior of the shell through a long guide pipe, a short guide pipe is arranged on the alkali liquor absorption bottle, the titanium alloy test tube rack is matched in the shell, a polytetrafluoroethylene paddle stirrer is arranged in the shell, and a quartz test tube is arranged in the titanium alloy test tube rack; an air pressure balance port, a water outlet, a liquid level sensor and a lower liquid level sensor are arranged on one side of the shell; a water injection port communicated with a water source is formed in the other side of the shell; a water valve is arranged on the water injection port; a heating plate and an adjustable-speed motor are arranged at the bottom of the shell, and the adjustable-speed motor drives a polytetrafluoroethylene paddle stirrer; according to the utility model, the liquid level can be controlled in the gold separation process, the heating is uniform, and meanwhile, the problems of annealing treatment and acid gas absorption are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire assaying, and in particular relates to a uniformly heated water bath gold separation and acid gas absorption device. Background Art

[0002] Fire assay gravimetric method is a method commonly used for precious metal detection; this method is to melt the sample to be tested with other fluxes, enrich the precious metals in the lead buckle, obtain gold and silver particles through the ash blowing step, and separate the gold from the particles to obtain gold particles, so that the gold content of the sample to be tested can be calculated. In the traditional fire assay gravimetric method, it is usually done manually and requires experienced operators. During the water bath gold separation process, it is necessary to pay attention to the changes in the liquid level frequently. When the water volume is too low, it is added manually, which leads to uneven heating temperature, increases time, and greatly reduces work efficiency; the traditional method of gold particles obtained by gold separation is to transfer them to a porcelain crucible for annealing, or use a blowpipe annealing method, which requires a lot of manual operation; acid gas is generated during the entire gold separation process, which needs to be carried out in a fume hood, but it will still diffuse into the working environment. Summary of the invention

[0003] In order to overcome the above problems, the utility model provides a uniformly heated water bath gold separation and acid gas absorption device, which can control the liquid level during the gold separation process and make the heating uniform, while solving the problems of annealing and acid gas absorption.

[0004] A uniformly heated water bath gold separation and acid gas absorption device comprises a shell, an alkali solution absorption bottle 103, an upper liquid level sensor 202, a lower liquid level sensor 203, a polytetrafluoroethylene paddle stirrer 205, a titanium alloy test tube rack 302, and a quartz test tube 303; wherein the alkali solution absorption bottle 103 is connected to the inside of the shell through a long conduit 104, and the alkali solution absorption bottle 103 is also provided with a short conduit 105 for vacuuming, the titanium alloy test tube rack 302 is connected in cooperation with the shell, and polytetrafluoroethylene paddle stirrers 205 are respectively provided in the shells at the front and rear ends of the titanium alloy test tube rack 302, and the titanium alloy test tube rack 302 is connected to the inside of the shell through a long conduit 104. A plurality of quartz test tubes 303 are installed in the gold test tube rack 302; an air pressure balance port 201 and a drain port 204 are respectively provided at the upper and lower ends of the side wall on one side of the shell, and an upper liquid level sensor 202 and a lower liquid level sensor 203 are respectively provided at the upper and lower ends of the side wall of the shell between the air pressure balance port 201 and the drain port 204; and a water inlet connected to a water source is provided above the side wall on the other side of the shell, and a water valve 206 is provided on the water inlet; a heating plate 402 and a speed regulating motor 401 are provided at the bottom of the shell, wherein the driving shaft of the speed regulating motor 401 is connected to a polytetrafluoroethylene paddle stirrer 205.

[0005] The housing comprises a shell 101 and a cover 102 , wherein the cover 102 is covered and fixed on the shell 101 , and the titanium alloy test tube rack 302 and the polytetrafluoroethylene paddle stirrer 205 are both located in the shell 101 .

[0006] A plurality of bases 403 are disposed at the bottom of the housing 101 , and a heating plate 402 and a speed regulating motor 401 are disposed at the bottom of the housing 101 inside the bases 403 .

[0007] The titanium alloy test tube rack 302 is provided with a plurality of test tube holes, in which the quartz test tubes 303 are placed, and the front and rear ends of the titanium alloy test tube rack 302 are respectively provided with test tube rack handles 301, and the top outer sides of the left and right sides are respectively provided with limiting plates 304, and the titanium alloy test tube rack 302 is connected to the groove set on the inner wall of the shell 101 through the limiting plates 304.

[0008] The polytetrafluoroethylene paddle stirrer 205 includes a rotating shaft and a stirring impeller, wherein the stirring impeller is fixed to the top of the rotating shaft, and the bottom of the rotating shaft passes through the bottom plate of the shell 101 and is connected to the driving shaft of the speed regulating motor 401 located at the bottom of the shell 101, and is driven to rotate by the speed regulating motor 401.

[0009] Beneficial effects of the utility model:

[0010] 1. Improve the stability of gold separation: The utility model reduces manual intervention through the liquid level sensor and the paddle agitator, makes the water temperature uniform, and improves working stability.

[0011] 2. Improve safety: The utility model absorbs the generated acid gas with alkaline solution to avoid polluting the environment and causing harm to the human body.

[0012] 3. Improve work efficiency: The gold separation test tube is made of quartz material. After gold separation, it can be annealed directly in the muffle furnace, reducing the number of operating steps.

[0013] In summary, the utility model is easy to control the water level, gold particles can be directly annealed, the generated acid gas can be effectively processed, manual operation is reduced, work efficiency and working environment are improved, and pollution is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings used in the description of the embodiments of the present invention. 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 the contents of the embodiments of the present invention and these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the test tube and the test tube rack of the utility model;

[0018] Figure 4 It is a schematic diagram of the bottom structure of the utility model.

[0019] Among them: 101-shell; 102-lid; 103-alkali solution absorption bottle; 104-long guide tube; 105-short guide tube; 201-air pressure balance port; 202-upper liquid level sensor; 203-lower liquid level sensor; 204-drain port; 205-polytetrafluoroethylene paddle stirrer; 206-water valve; 301-test tube rack handle; 302-titanium alloy test tube rack; 303-quartz test tube; 304-limiting plate; 401-speed regulating motor; 402-heating plate; 403-base. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0021] Example 1

[0022] like Figure 1-4 As shown, a uniformly heated water bath gold separation and acid gas absorption device comprises a housing, an alkali solution absorption bottle 103, an upper liquid level sensor 202, a lower liquid level sensor 203, a polytetrafluoroethylene paddle stirrer 205, a titanium alloy test tube rack 302, and a quartz test tube 303; wherein the alkali solution absorption bottle 103 is connected to the inside of the housing through a long conduit 104, and the alkali solution absorption bottle 103 is also provided with a short conduit 105 for vacuuming, the titanium alloy test tube rack 302 is connected in cooperation with the housing, and the front and rear of the titanium alloy test tube rack 302 are Polytetrafluoroethylene paddle stirrers 205 are respectively provided in the shells at both ends, and a plurality of quartz test tubes 303 are installed in the titanium alloy test tube rack 302; an air pressure balance port 201 and a drain port 204 are respectively provided at the upper and lower ends of the side wall on one side of the shell, and an upper liquid level sensor 202 and a lower liquid level sensor 203 are respectively provided at the upper and lower ends of the side wall of the shell between the air pressure balance port 201 and the drain port 204; and a water inlet connected to a water source is provided above the side wall on the other side of the shell, and a water valve 206 is provided on the water inlet.

[0023] The housing comprises a shell 101 and a cover 102 , wherein the cover 102 is covered and fixed on the shell 101 , and the titanium alloy test tube rack 302 and the polytetrafluoroethylene paddle stirrer 205 are both located in the shell 101 .

[0024] The bottom of the shell 101 is provided with a plurality of bases 403 supporting the gold separation device, the bottom of the shell 101 inside the base 403 is provided with a heating plate 402, and the bottom of the shell 101 at the front and rear ends of the heating plate 402 is provided with a speed regulating motor 401 respectively.

[0025] The titanium alloy test tube rack 302 is provided with a plurality of test tube holes, in which the quartz test tubes 303 are placed, and the front and rear ends of the titanium alloy test tube rack 302 are respectively provided with test tube rack handles 301, and the top outer sides of the left and right sides are respectively provided with limiting plates 304, and the titanium alloy test tube rack 302 is connected to the groove set on the inner wall of the shell 101 through the limiting plates 304.

[0026] The polytetrafluoroethylene paddle stirrer 205 includes a rotating shaft and a stirring impeller, wherein the stirring impeller is fixed to the top of the rotating shaft, and the bottom of the rotating shaft passes through the bottom plate of the shell 101 and is connected to the driving shaft of the speed regulating motor 401 corresponding to the bottom of the shell 101, and is driven to rotate by the speed regulating motor 401.

[0027] Example 2

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 The utility model is composed of a shell 101, a cover 102, an alkali solution absorption bottle 103, a long conduit 104, a short conduit 105, an air pressure balance port 201, an upper liquid level sensor 202, a lower liquid level sensor 203, a drain port 204, a polytetrafluoroethylene paddle stirrer 205, a water valve 206, a test tube rack handle 301, a titanium alloy test tube rack 302, a quartz test tube 303, and a limit plate 304. The device as a whole is supported by a shell 101, which has a cover 102 on it. A long conduit 104 connects the alkali solution absorption bottle 103 and the shell 101, and a short conduit 105 connects the alkali solution absorption bottle and the vacuum device. The front of the shell 101 has an air pressure balance port 201, an upper liquid level sensor 202, a lower liquid level sensor 203, and a drain port 204. A water valve 206 is connected to the side of the shell 101. A paddle stirrer 205 is installed at the bottom of the shell 101. The quartz test tube 303 is placed in a titanium alloy test tube rack 302. Test tube rack handles 301 are installed on both sides of the titanium alloy test tube rack 302, and there are limit plates 304 at the front and back.

[0029] The quartz test tube 303 is made of quartz.

[0030] When in use, the gold and silver particles are placed in the quartz test tube 303, and after adding dilute nitric acid to the quartz test tube 303, the quartz test tube 303 is placed in the shell 101, and the limit plate 304 is used to limit the position to prevent boiling and other forces from changing the position of the titanium alloy test tube rack 302. The heating plate 402 is turned on to heat the bottom of the shell 101. As the reaction proceeds, the water in the shell 101 evaporates and gradually decreases. At this time, the liquid level is monitored by the lower liquid level sensor 203. If the liquid level is lower than the set value, the water valve 206 is opened to inject water into the shell 101. The polytetrafluoroethylene paddle stirrer 205 keeps stirring to make the temperature distribution of the water in the shell 101 uniform. When the upper liquid level sensor 202 detects that the liquid level has reached, the water valve 206 is closed to stop injecting water. This is repeated to keep the liquid level in the shell 101 in dynamic balance. During the entire reaction process, the end of the short conduit 105 is always in a negative pressure state, so that the generated acid gas enters the alkali solution absorption bottle 103 through the conduit 104, and the acid gas can be effectively recovered. The height of the vent 201 is slightly lower than the quartz test tube 303. After the reaction is completed, the titanium alloy test tube rack 302 and the quartz test tube 303 are taken out as a whole and placed in a muffle furnace for annealing. This working process can be repeated every day. After the work is completed that day, the wastewater in the shell 101 is discharged through the drain port 204.

[0031] When the utility model is used, the gold and silver particles are placed in a test tube, and a certain amount of dilute nitric acid is added by a liquid adding device. The bottom is heated by a heating plate 402. As the heating proceeds, the water evaporates and decreases. The liquid level is judged by the lower liquid level sensor 203. When it is lower than the minimum height required for gold separation, water is stored. Through the action of the stirring paddle, the water temperature can be quickly uniformed to reduce the influence of temperature on gold separation. When the maximum liquid level is reached, water injection is stopped. The acid gas generated during gold separation is absorbed by an alkaline solution absorption device, and the waste acid is treated by the acid-base neutralization principle. The test tube used is made of high temperature resistant material, and finally the test tube can be directly placed in a muffle furnace to anneal the sponge gold.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the protection scope of the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes based on the technical scheme and the utility model concept of the present invention within the technical scope disclosed by the present invention. These simple variations all belong to the protection scope of the present invention.

[0033] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0034] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A uniformly heated water bath gold separation and acid gas absorption device, characterized in that: The invention comprises a shell, an alkali solution absorption bottle (103), an upper liquid level sensor (202), a lower liquid level sensor (203), a polytetrafluoroethylene paddle stirrer (205), a titanium alloy test tube rack (302), and a quartz test tube (303); wherein the alkali solution absorption bottle (103) is connected to the inside of the shell through a long conduit (104), and the alkali solution absorption bottle (103) is also provided with a short conduit (105) for vacuuming; the titanium alloy test tube rack (302) is connected in cooperation with the shell; and polytetrafluoroethylene paddle stirrers (205) are respectively provided in the shell at the front and rear ends of the titanium alloy test tube rack (302); and the titanium alloy test tube rack (302) is provided with a plurality of polytetrafluoroethylene paddle stirrers (205). A plurality of quartz test tubes (303) are contained therein; an air pressure balance port (201) and a water outlet (204) are respectively disposed at the upper and lower ends of the side wall on one side of the shell, and an upper liquid level sensor (202) and a lower liquid level sensor (203) are respectively disposed at the upper and lower ends of the side wall of the shell between the air pressure balance port (201) and the water outlet (204); and a water injection port connected to a water source is disposed above the side wall on the other side of the shell, and a water valve (206) is disposed on the water injection port; a heating plate (402) and a speed regulating motor (401) are disposed at the bottom of the shell, wherein a driving shaft of the speed regulating motor (401) is connected to a polytetrafluoroethylene paddle stirrer (205).

2. The uniformly heated water bath gold separation and acid gas absorption device according to claim 1 is characterized in that: The housing comprises a shell (101) and a cover (102), wherein the cover (102) covers and is fixed on the shell (101), and the titanium alloy test tube rack (302) and the polytetrafluoroethylene paddle stirrer (205) are both located in the shell (101).

3. The uniformly heated water bath gold separation and acid gas absorption device according to claim 2 is characterized in that: A plurality of bases (403) are provided at the bottom of the shell (101), and a heating plate (402) and a speed regulating motor (401) are provided at the bottom of the shell (101) inside the bases (403).

4. The uniformly heated water bath gold separation and acid gas absorption device according to claim 1, characterized in that: The titanium alloy test tube rack (302) is provided with a plurality of test tube holes, and the quartz test tubes (303) are placed in the test tube holes. The front and rear ends of the titanium alloy test tube rack (302) are respectively provided with test tube rack handles (301), and the top outer sides of the left and right sides are respectively provided with limiting plates (304). The titanium alloy test tube rack (302) is connected to the groove provided on the inner wall of the shell (101) through the limiting plates (304).

5. The uniformly heated water bath gold separation and acid gas absorption device according to claim 3 is characterized in that: The polytetrafluoroethylene paddle stirrer (205) comprises a rotating shaft and a stirring impeller, wherein the stirring impeller is fixed to the top of the rotating shaft, and the bottom of the rotating shaft passes through the bottom plate of the housing (101) and is connected to the driving shaft of the speed regulating motor (401) located at the bottom of the housing (101), and is driven to rotate by the speed regulating motor (401).

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