CN218900679U - Harmless disposal device for waste potassium borohydride - Google Patents
Harmless disposal device for waste potassium borohydride Download PDFInfo
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- CN218900679U CN218900679U CN202222941234.9U CN202222941234U CN218900679U CN 218900679 U CN218900679 U CN 218900679U CN 202222941234 U CN202222941234 U CN 202222941234U CN 218900679 U CN218900679 U CN 218900679U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model relates to a harmless treatment device of waste potassium borohydride, which comprises a solution preparation tank and a reaction tank, wherein the bottom of the solution preparation tank is connected with the upper end of the reaction tank through a pipeline, and a pump and a filter are sequentially arranged on the pipeline; the outside of the reaction tank is coated with a jacket, the jacket is a countercurrent jacket, the lower end of the jacket is provided with a cooling water inlet, and the upper end of the jacket is provided with a cooling water outlet; the upper end of the reaction tank is connected with an external incineration device through an air outlet pipe, and the air outlet pipe is provided with an induced draft fan and a hydrogen purification device; the solution preparation tank and the reaction tank are internally provided with stirring devices, and the solution preparation tank is provided with two liquid feeding pipes, a solid feeding port and an exhaust port; the inner side wall of the solution preparation tank is provided with an online pH meter a, the inner side wall of the reaction tank is provided with an online pH meter b, and the upper end of the reaction tank is provided with a feed inlet. The device can effectively treat the dangerous waste potassium borohydride, and has good effect.
Description
Technical Field
The utility model belongs to the technical field of harmless treatment of hazardous waste, and particularly relates to a harmless treatment device for waste potassium borohydride.
Background
Potassium borohydride is a powerful reducing agent with an alkali metal complex salt structure, and is widely applied to the field of fine chemical synthesis of medicines, pesticides, fragrances and the like. Because of strong reducibility and extremely flammable gas generated when meeting water, the waste chemicals produced by the industry contain a large amount of the substances, are listed in the name book of the easy-to-make explosion dangerous chemicals, and are controlled according to the public security management method of the easy-to-make explosion dangerous chemicals. In practice, the waste potassium borohydride should be delivered to a qualified hazardous waste disposal enterprise for disposal. Due to the strong reducibility of potassium borohydride, it is a difficult waste to dispose of during disposal.
Meanwhile, studies have shown that potassium borohydride stores hydrogen up to 7.4wt% and 10g of potassium borohydride can emit 0.45L of gas at a concentration of 2wt% aqueous solution. Hydrogen has wide application in petrochemical industry, electronic industry, metallurgical industry, food processing, float glass, fine organic synthesis, aerospace and other fields. Hydrogen is also an ideal secondary energy source. Therefore, research on a harmless treatment device for effectively treating the dangerous waste potassium borohydride has urgent social demands.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a harmless disposal device for waste potassium borohydride, which is used for effectively disposing dangerous waste potassium borohydride.
The utility model comprises the following technical scheme: the harmless disposal device of the waste potassium borohydride comprises a solution preparation tank and a reaction tank, wherein the bottom of the solution preparation tank is connected with the upper end of the reaction tank through a pipeline, and a pump and a filter are sequentially arranged on the pipeline; the outside of the reaction tank is coated with a jacket, the jacket is a countercurrent jacket, the lower end of the jacket is provided with a cooling water inlet, and the upper end of the jacket is provided with a cooling water outlet; the upper end of the reaction tank is connected with an external incineration device through an air outlet pipe, and the air outlet pipe is provided with an induced draft fan and a hydrogen purification device; stirring devices are arranged in the solution preparation tank and the reaction tank and are used for stirring materials in the solution preparation tank and the reaction tank; the solution preparation tank is provided with two liquid charging pipes, a solid charging port and an exhaust port, wherein the solid charging port is used for adding an oxidant, one liquid charging pipe is used for adding an acid solution, the other liquid charging pipe is used for adding water, and the two liquid charging pipes are provided with metering pumps; the inner side wall of the solution preparation tank is provided with an online pH meter a, and the outer end of the online pH meter a is connected with an external display device; the inner side wall of the reaction tank is provided with an online pH meter b, and the outer end of the online pH meter b is connected with an external display device; the upper end of the reaction tank is provided with a feed inlet for adding potassium borohydride.
Further, an aeration device is arranged at the bottom of the solution preparation tank.
Further, a safety valve, a thermometer and a pressure gauge are also arranged on the reaction tank.
Further, a transparent window and a water line scale are also arranged on the reaction tank; the transparent window is rectangular from top to bottom, and the water line scale is arranged near the transparent window.
Further, the pump is a corrosion resistant metering pump.
Further, the stirring device is a mechanical stirring device, the mechanical stirring device comprises a stirring motor and a stirring paddle, the stirring paddle is driven by the stirring motor, and the stirring motor is arranged at the upper end of the solution preparation tank or the reaction tank; the stirring paddle extends into the solution preparation tank or the reaction tank.
Further, the solution preparing tank and the reaction tank body are made of corrosion-resistant and light-proof materials.
The oxidant solution preparing tank and the reaction tank body adopt corrosion-resistant materials and light-proof to ensure the oxidizing property of the oxidant, such as a steel lining ETFE material on the market is covered with dark glass or a plastic plate to prevent decomposition; the acid adding pump is made of a corrosion-resistant metering pump and made of a plurality of materials such as polytetrafluoroethylene, poly perfluoroethylene propylene and the like, and the water adding pump is a common metering pump.
Preferably, the oxidizing agent solution preparing tank is provided with an on-line pH meter, an exhaust port, an aeration device arranged at the bottom, a pump and a filter are arranged when the oxidizing agent solution preparing tank is connected with the reaction tank, and mechanical stirring and air stirring (aeration device) are simultaneously used when the oxidizing agent is solid, so that the filter is prevented from being blocked.
Preferably, the mechanical stirring device of the oxidant solution preparation tank and the reaction tank is a motor-driven stirring paddle, and the air stirring is that an aeration device is arranged at the bottom, so that solid oxidant is prevented from accumulating at the bottom and blocking.
Preferably, the reaction tank is provided with a transparent window for observing the reaction condition, more preferably, the window of the reaction tank is rectangular from top to bottom, and the color of the solution in the reaction tank and the intensity of the reaction can be seen in real time.
Preferably, the pressure gauge, the thermometer and the online pH meter of the reaction tank can reflect the intensity of the reaction in real time, and when the air pressure in the reaction tank reaches a set value, the safety valve is opened to release pressure; the temperature is measured by a thermometer so as to conveniently regulate and control the flow rate of cooling water of the jacket, thereby ensuring proper temperature.
Preferably, the reaction tank is provided with a water line to pump the amount of the oxidizer solution according to the amount of the waste potassium borohydride.
Preferably, the feeding port and the potassium permanganate feeding port are provided with fireproof plates for preventing the two from being contacted with acid to cause combustion.
Preferably, a draught fan is arranged on a connecting pipeline of the reaction tank and the hydrogen collection tank to accelerate the collection of hydrogen, and meanwhile, the safety of the reaction tank is ensured; the hydrogen purification device is arranged to filter impurities in the hydrogen so as to lead the purity of the hydrogen to be higher.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects: the utility model provides a harmless treatment device for waste potassium borohydride, which utilizes the principle that partial oxidant has stronger oxidizing property under acidic condition to safely and harmlessly treat waste potassium borohydride, and simultaneously, the hydrogen energy in the potassium borohydride is secondarily utilized, so that the economic benefit is improved.
Drawings
FIG. 1 is a schematic diagram of the device association of the present utility model;
in the figure, 1 is a solution configuration tank, 2 is a reaction tank, 1-1 is a solid feed port, 1-2 is a water feed pipe, 1-3 is a acid feed pipe, 1-4 is a stirring motor a,1-5 is an online pH meter a,1-6 is an aeration device, 1-7 is a water pumping device, 1-8 is a filter, 1-9 is an exhaust port, 1-10 is a stirring paddle a,2-1 is a stirring motor b,2-2 is a feed port, 2-3 is a condensed water outlet, 2-4 is a water line scale, 2-5 is an online pH meter b,2-6 is a water outlet, 2-7 is a condensed water inlet, 2-8 is a transparent window, 2-9 is a thermometer, 2-10 is a pressure gauge, 2-11 is a safety valve, 2-12 is a stirring paddle b,3-1 is an induced draft fan, and 3-2 is a hydrogen purification device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed therewith: can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
As shown in figure 1, the harmless disposal device of the waste potassium borohydride comprises a solution preparation tank 1 and a reaction tank 2, wherein the bottom of the solution preparation tank 1 is connected with the upper end of the reaction tank 2 through a pipeline, and a pump 1-7 and a filter 1-8 are sequentially arranged on the pipeline; the outside of the reaction tank 2 is coated with a jacket, the jacket is a countercurrent jacket, the lower end of the jacket is provided with a cooling water inlet 2-7, and the upper end of the jacket is provided with a cooling water outlet 2-3; the upper end of the reaction tank 2 is connected with an external incineration device through an air outlet pipe, and the air outlet pipe is provided with an induced draft fan 3-1 and a hydrogen purification device 3-2; stirring devices are arranged in the solution preparation tank 1 and the reaction tank 2 and are used for stirring materials in the solution preparation tank 1 and the reaction tank 2; the solution preparation tank 1 is provided with two liquid charging pipes, a solid charging port 1-1 and an exhaust port 1-9, wherein the solid charging port 1-1 is used for adding an oxidant, one liquid charging pipe is used for adding acid liquor, the other liquid charging pipe is used for adding water, and the two liquid charging pipes are provided with metering pumps; the inner side wall of the solution preparation tank 1 is provided with an online pH meter a1-5, and the outer end of the online pH meter a1-5 is connected with an external display device; the inner side wall of the reaction tank 2 is provided with an online pH meter b2-5, and the outer end of the online pH meter b2-5 is connected with an external display device; the upper end of the reaction tank 2 is provided with a feed inlet 2-2 for adding potassium borohydride.
Further, the bottom of the solution preparing tank 1 is provided with aeration devices 1-6.
Further, a safety valve 2-11, a thermometer 2-9 and a pressure gauge 2-10 are arranged on the reaction tank 2.
Further, a transparent window 2-8 and a water line scale 2-4 are also arranged on the reaction tank 2; the transparent window is rectangular from top to bottom, and the water line scale 2-4 is arranged near the transparent window 2-8.
Further, the pumps 1-7 are corrosion resistant metering pumps.
Further, the stirring device is a mechanical stirring device, the mechanical stirring device comprises a stirring motor and a stirring paddle, the stirring paddle is driven by the stirring motor, and the stirring motor is arranged at the upper end of the solution preparation tank or the reaction tank; the stirring paddle extends into the solution preparation tank or the reaction tank.
Further, the solution preparing tank 1 and the reaction tank 2 are made of corrosion-resistant and light-proof materials so as to ensure the oxidizing property of the oxidant, such as a steel lining ETFE material on the market is covered with dark glass or a plastic plate to prevent decomposition; the acid adding pump is made of a corrosion-resistant metering pump and made of a plurality of materials such as polytetrafluoroethylene, poly perfluoroethylene propylene and the like, and the water adding pump is a common metering pump.
Preferably, the oxidizing agent solution preparing tank 1 is provided with an online pH meter a1-5, an exhaust port, an aeration device is arranged at the bottom, and a metering pump 1-7 and a filter 1-8 are arranged when the oxidizing agent solution preparing tank is connected with the reaction tank 2, and mechanical stirring and air stirring (aeration device) are simultaneously used when the oxidizing agent is solid, so that the filter is prevented from being blocked. The aeration device refers to equipment for supplying oxygen to an aeration tank in the wastewater treatment process by an activated sludge process.
Preferably, the mechanical stirring device of the oxidant solution preparation tank and the reaction tank is a motor-driven stirring paddle, and the air stirring is that an aeration device is arranged at the bottom, so that solid oxidant is prevented from accumulating at the bottom and blocking.
Preferably, the reaction tank 2 is provided with transparent windows 2-8 for observing the reaction condition, more preferably, the windows of the reaction tank are rectangular from top to bottom, and the color of the solution in the reaction tank and the intensity of the reaction can be seen in real time.
Preferably, the pressure gauge 2-10, the thermometer 2-9 and the online pH meter b2-5 of the reaction tank 2 can reflect the intensity of the reaction in real time, and when the air pressure in the reaction tank reaches a set value, the safety valve is opened to release pressure; the temperature is measured by a thermometer so as to conveniently regulate and control the flow rate of cooling water of the jacket, thereby ensuring proper temperature.
Preferably, the reaction tank 2 is provided with a water line scale 2-4 for pumping the amount of the oxidizer solution according to the amount of the waste potassium borohydride.
Preferably, the connection pipeline of the reaction tank 2 and the external incineration device is provided with an induced draft fan 3-1 to accelerate the collection of hydrogen, and the safety of the reaction tank is ensured, and the hydrogen purification device 3-2 is arranged to filter impurities in the hydrogen so that the purity of the hydrogen is higher. The hydrogen purification equipment is the existing mature equipment, takes electrolytic hydrogen as raw material, carries out catalytic deoxidization cooling, adsorption secondary drying, and removes impurity oxygen, water vapor and dust in the hydrogen through a filter to obtain high-purity hydrogen, and the purity of the product high-purity hydrogen can reach more than 99.9995%.
In a preferred embodiment of the solution, the collected waste potassium borohydride is quantitatively treated, the pump of the adding water of the oxidant solution preparation tank is a metering pump, the adding amount and the adding amount of the oxidant are recorded to control the solution concentration, and the solution is transferred to the reaction tank without metering.
The implementation process of the utility model is as follows: weighing the collected waste potassium borohydride to about 12.23kg; 600kg of tap water is pumped into a solution preparation tank, about 2kg of waste chemical reagent potassium permanganate collected by the hazardous waste disposal center is selected as an oxidant, the waste chemical reagent potassium permanganate is slowly added into the preparation tank from a feeding port, a stirring device is started to completely dissolve the waste chemical reagent potassium permanganate, and then sulfuric acid is pumped into the preparation tank to adjust the pH value to 3-4; pumping the potassium permanganate solution into a reaction tank, slowly adding potassium borohydride, judging the reaction condition by observing the color, temperature, pressure and pH of the solution, and safely disposing the potassium borohydride when the temperature is reduced to room temperature and the pH value of the solution is 6-7 and the solution is colorless and transparent. The embodiment not only safely disposes the potassium borohydride, but also cooperatively disposes the dangerous waste potassium permanganate, fully reutilizes the hydrogen energy in the potassium borohydride, and improves the economic benefit.
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather to cover all modifications, equivalents and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. The harmless disposal device of the waste potassium borohydride is characterized by comprising a solution preparation tank (1) and a reaction tank (2), wherein the bottom of the solution preparation tank (1) is connected with the upper end of the reaction tank (2) through a pipeline, and a pump (1-7) and a filter (1-8) are sequentially arranged on the pipeline;
the outside of the reaction tank (2) is coated with a jacket, the jacket is a countercurrent jacket, the lower end of the jacket is provided with a cooling water inlet (2-7), and the upper end of the jacket is provided with a cooling water outlet (2-3);
the upper end of the reaction tank (2) is connected with an external incineration device through an air outlet pipe, and an induced draft fan (3-1) and a hydrogen purification device (3-2) are arranged on the air outlet pipe;
stirring devices are arranged in the solution preparation tank (1) and the reaction tank (2) and are used for stirring materials in the solution preparation tank (1) and the reaction tank (2);
the solution preparation tank (1) is provided with two liquid feeding pipes, a solid feeding port (1-1) and an exhaust port (1-9), wherein the solid feeding port (1-1) is used for adding an oxidant, one liquid feeding pipe is used for adding acid liquor, the other liquid feeding pipe is used for adding water, and the two liquid feeding pipes are provided with metering pumps;
the inner side wall of the solution preparation tank (1) is provided with an online pH meter a (1-5), and the outer end of the online pH meter a (1-5) is connected with an external display device;
the inner side wall of the reaction tank (2) is provided with an online pH meter b (2-5), and the outer end of the online pH meter b (2-5) is connected with an external display device;
the upper end of the reaction tank (2) is provided with a feed inlet (2-2) for adding potassium borohydride.
2. The apparatus for harmless disposal of waste potassium borohydride according to claim 1, wherein aeration means (1-6) are provided at the bottom of the solution preparing tank (1).
3. The harmless disposal device of waste potassium borohydride according to claim 2, wherein the reaction tank (2) is further provided with a safety valve (2-11), a thermometer (2-9) and a pressure gauge (2-10).
4. A waste potassium borohydride harmless treatment device according to claim 3, wherein the reaction tank (2) is further provided with a transparent window (2-8) and a water line scale (2-4); the transparent window is rectangular from top to bottom, and the water line scale (2-4) is arranged near the transparent window (2-8).
5. A waste potassium borohydride harmless disposal device according to claim 1, characterized in that said pumps (1-7) are corrosion-resistant metering pumps.
6. The harmless treatment device of the waste potassium borohydride according to claim 1, wherein the stirring device is a mechanical stirring device, the mechanical stirring device comprises a stirring motor and a stirring paddle, the stirring paddle is driven by the stirring motor, and the stirring motor is arranged at the upper end of the solution preparation tank or the reaction tank; the stirring paddle extends into the solution preparation tank or the reaction tank.
7. The harmless disposal device of waste potassium borohydride according to claim 1, wherein the solution preparing tank (1) and the reaction tank (2) are made of corrosion-resistant and light-proof materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222941234.9U CN218900679U (en) | 2022-11-05 | 2022-11-05 | Harmless disposal device for waste potassium borohydride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222941234.9U CN218900679U (en) | 2022-11-05 | 2022-11-05 | Harmless disposal device for waste potassium borohydride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218900679U true CN218900679U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222941234.9U Active CN218900679U (en) | 2022-11-05 | 2022-11-05 | Harmless disposal device for waste potassium borohydride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218900679U (en) |
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2022
- 2022-11-05 CN CN202222941234.9U patent/CN218900679U/en active Active
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