Silver nitrate production treatment device and waste gas treatment mechanism
By using ozone to pretreat nitrogen oxides during the silver nitrate production process and purifying the liquid in a spray tower, the problem of water tank corrosion in silver nitrate waste gas treatment was solved, achieving efficient purification of waste gas and protection of the water tank.
Patent Information
- Application Number
- CN202520407045.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-10
AI Technical Summary
In existing technologies, the silver nitrate waste gas treatment method causes corrosion of the inner wall of the water tank, leading to damage to the water tank.
The ozone in the pretreatment unit is used to oxidize the nitrogen oxides generated in the silver nitrate reactor, and the oxidized gas is introduced into the spray tower in the exhaust gas treatment unit for purification using the liquid in the spray tower, thus avoiding direct introduction of the exhaust gas into the water tank.
It effectively prevents corrosion of the inner wall of the water tank, improves the purification effect of exhaust gas, and protects the integrity of the water tank.
Smart Images
Figure CN223861625U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of silver nitrate production technology, specifically relating to a silver nitrate production and processing device and a waste gas treatment mechanism. Background Technology
[0002] Silver nitrate is an inorganic compound that is a white crystalline powder that is readily soluble in water, ammonia, and glycerol, and slightly soluble in ethanol. The production of silver nitrate generates a large amount of exhaust gas. Directly discharging this exhaust gas would negatively impact environmental quality. Therefore, it is necessary to purify the exhaust gas before emission to reduce the content of harmful substances and thus benefit environmental protection.
[0003] Existing methods for treating silver nitrate waste gas typically involve directly introducing the waste gas into a water tank, where an alkaline solution is placed to absorb the acidic gases in the exhaust gas, thus achieving a purification effect. However, long-term use of this method can lead to corrosion of the inner wall of the water tank, resulting in damage to the tank.
[0004] Therefore, a silver nitrate production and processing device and a waste gas treatment mechanism are designed to solve the technical problem in the prior art where directly introducing waste gas into the water tank causes damage to the water tank.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one silver nitrate production and processing apparatus and a waste gas treatment mechanism.
[0007] In a first aspect, embodiments of this disclosure provide a silver nitrate production and processing apparatus, comprising:
[0008] A silver nitrate reactor, which contains silver and has a nitric acid feed pipe connected to its upper end;
[0009] The pretreatment unit introduces ozone into the silver nitrate reactor through an ozone input pipe to oxidize the nitrogen oxides produced in the reaction within the reactor; and
[0010] The waste gas treatment unit is connected to the waste gas pipe installed on the silver nitrate reactor; wherein
[0011] The oxidized gas is introduced into the bottom of the spray tower in the waste gas treatment unit through the exhaust pipe, and discharged after being purified by the liquid sprayed from the top of the spray tower.
[0012] In one optional embodiment, the exhaust gas treatment mechanism includes:
[0013] A liquid storage tank is located below the spray tower and the two are connected.
[0014] A circulation pipe, on which a circulation pump is installed; wherein
[0015] The circulating pump is adapted to pump liquid from the liquid storage tank to the top of the spray tower through the circulating pipe to purify the waste gas introduced by the waste gas pipe.
[0016] In one optional embodiment, the spray tower is internally equipped with a gas stagnation assembly, which includes:
[0017] A rotary motor is installed at the top of the spray tower;
[0018] A rotating shaft is disposed inside the spray tower, and the top end of the rotating shaft passes through the spray tower and connects to the output end of the rotary motor; wherein
[0019] The rotating shaft is provided with several gas stagnation mesh plates, and each of the gas stagnation mesh plates is provided with several air holes; and
[0020] A coaxial reverser is provided at each interval of the connection between the gas stabilization mesh plate and the rotating shaft.
[0021] In one optional implementation, the preprocessing mechanism includes:
[0022] An ozone generator, the output of which is connected to the ozone input pipe; and
[0023] An ozone microporous distributor is installed on the ozone input pipe and located inside the silver nitrate reactor; wherein
[0024] The ozone generator is adapted to introduce the generated ozone into the interior of the silver nitrate reactor through an ozone input pipe and discharge it through an ozone microporous distributor to oxidize the nitrogen oxide gas produced in the reaction inside the silver nitrate reactor.
[0025] Secondly, embodiments of this disclosure also provide a waste gas treatment mechanism, comprising:
[0026] A liquid storage tank is located below the spray tower and the two are connected.
[0027] A circulation pipe, on which a circulation pump is installed; wherein
[0028] The circulating pump is adapted to pump liquid from the liquid storage tank to the top of the spray tower through the circulating pipe to purify the waste gas introduced by the waste gas pipe.
[0029] In one optional embodiment, the spray tower is internally equipped with a gas stagnation assembly, which includes:
[0030] A rotary motor is installed at the top of the spray tower;
[0031] A rotating shaft is disposed inside the spray tower, and the top end of the rotating shaft passes through the spray tower and connects to the output end of the rotary motor; wherein
[0032] The rotating shaft is provided with several gas stagnation mesh plates, and each of the gas stagnation mesh plates is provided with several air holes; and
[0033] A coaxial reverser is provided at each interval of the connection between the gas stabilization mesh plate and the rotating shaft.
[0034] The beneficial effects of this utility model are that the device is equipped with a pretreatment mechanism and an exhaust gas treatment mechanism. The ozone in the pretreatment mechanism is used to oxidize the nitrogen oxides produced in the silver nitrate reactor during the preparation of silver nitrate. Then, the oxidized gas is introduced into the spray tower in the exhaust gas treatment mechanism. The liquid in the spray tower is sprayed out from the top of the spray tower and falls to contact the rising exhaust gas for purification, avoiding the direct introduction of exhaust gas into the water tank, which would cause corrosion and damage to the inner wall of the water tank.
[0035] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0036] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0038] Figure 1 An overall perspective view provided for an embodiment of this disclosure;
[0039] Figure 2 This is a schematic diagram of the overall internal cross-sectional structure provided in the embodiments of this disclosure;
[0040] Figure 3 This is a cross-sectional structural diagram of the gas hysteresis assembly provided in an embodiment of this disclosure.
[0041] In the picture:
[0042] 1. Silver nitrate reactor; 10. Nitric acid feed pipe; 11. Control valve; 12. Exhaust gas pipe;
[0043] 2. Pretreatment unit; 20. Ozone generator; 21. Ozone input pipe; 210. Ozone microporous distributor;
[0044] 3. Waste gas treatment mechanism; 30. Liquid storage tank; 31. Spray tower; 32. Circulation pump; 33. Circulation pipe; 330. Spray nozzle; 34. Exhaust pipe; 35. Gas stagnation component; 350. Rotary motor; 351. Rotating shaft; 352. Gas stagnation mesh plate; 353. Air hole; 354. Coaxial reverser. Detailed Implementation
[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0046] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.
[0047] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0048] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0049] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0050] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0051] Research has found that existing methods for treating silver nitrate waste gas typically involve directly introducing the waste gas into a water tank, where an alkaline solution is placed to absorb the acidic gases in the exhaust gas, thus achieving a purification effect. However, long-term use of this method can lead to corrosion of the inner wall of the water tank, causing damage to the tank.
[0052] Based on the above research, this disclosure provides a silver nitrate production and processing device and a waste gas treatment mechanism. By setting up a pretreatment mechanism and a waste gas treatment mechanism, the ozone in the pretreatment mechanism is used to oxidize the nitrogen oxides generated during the preparation of silver nitrate in the silver nitrate reactor. Then, the oxidized gas is introduced into the spray tower in the waste gas treatment mechanism. The liquid in the spray tower is sprayed from the top of the spray tower and falls to contact the rising waste gas for purification, avoiding the direct introduction of waste gas into the water tank, which would cause corrosion and damage to the inner wall of the water tank.
[0053] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.
[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0055] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0056] In some embodiments, such as Figure 1 As shown, silver is placed in the silver nitrate reactor 1 before the reaction begins. Then, nitric acid is introduced into the silver nitrate reactor 1 through the nitric acid feed pipe by opening the regulating valve 11 to generate silver nitrate and nitrogen oxide waste gas. At the same time, the ozone generator 20 is turned on (this ozone generator is existing technology, and the specific model and working principle will not be described in detail here). The ozone generated by it enters the interior of the silver nitrate reactor 1 through the ozone input pipe 21 to oxidize and pretreat the nitrogen oxide waste gas. Then, the oxidized waste gas enters the liquid storage tank 30 through the waste gas pipe 12 for spray purification.
[0057] In some embodiments, such as Figure 2 As shown, an ozone microporous distributor 210 is installed at one end of the ozone input pipe 21 inside the silver nitrate reactor 1 to uniformly distribute ozone and bring it into contact with the nitrogen oxide exhaust gas.
[0058] In some embodiments, such as Figure 2 As shown, the oxidized waste gas enters the liquid storage tank 30 through the waste gas pipe 12. One end of the waste gas pipe 12 is located inside the liquid storage tank 30 and is above the liquid surface. After entering, the waste gas naturally rises into the spray tower 31. The circulation pump 32 is started, and the liquid in the liquid storage tank 30 is pumped into the top of the spray tower 31 through the circulation pipe 33. A nozzle 330 can be added at the end of the circulation pipe 33 located at the top of the spray tower 31 to spray the liquid evenly. The liquid falls onto the uppermost gas stagnant mesh plate 352 and drips from the upper air hole 353 onto the lower gas stagnant mesh plate 352. The rising gas can only rise through the air hole 353, so that the liquid and waste gas can fully contact each other for purification, avoiding direct introduction of waste gas into the liquid storage tank 30 and causing corrosion to the inner wall of the tank.
[0059] In some embodiments, such as Figure 3 As shown, while purifying the exhaust gas, the rotary motor 350 is started, and its output end drives the rotating shaft 351 to rotate, which in turn drives the gas stagnation mesh plates 352 on the rotating shaft 351 to rotate, as shown. Figure 3As shown, the gas stagnation mesh plate 352 is preferably provided in three layers, and a coaxial reverser 354 is provided at the connection between the middle layer gas stagnation mesh plate 352 and the rotating shaft 351 (the coaxial reverser 354 is existing technology, and its specific structure and working principle will not be described in detail here). This makes the rotation direction of the gas stagnation mesh plate 352 opposite to that of the rotating shaft 351. By making the spaced gas stagnation mesh plates 352 rotate in different directions, the rising speed of the exhaust gas is slowed down, the residence time of the exhaust gas in the spray tower 31 is increased, and the purification effect of the exhaust gas is further improved. Finally, the purified exhaust gas is discharged through the exhaust pipe 34 at the top of the spray tower 31.
[0060] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0061] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0062] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0063] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0064] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A silver nitrate production and processing device, characterized in that, include: The silver nitrate reactor (1) is filled with silver and connected to the upper end of the nitric acid feed pipe (10). The pretreatment unit (2) introduces ozone into the silver nitrate reactor (1) through the ozone input pipe (21) to oxidize the nitrogen oxide gas produced in the reaction within the silver nitrate reactor (1); and The waste gas treatment unit (3) is connected to the waste gas pipe (12) installed on the silver nitrate reactor (1); wherein The exhaust pipe (12) introduces the oxidized gas into the bottom of the spray tower (31) in the exhaust gas treatment device (3), and discharges it after being purified by the liquid sprayed from the top of the spray tower (31).
2. The silver nitrate production and processing apparatus as described in claim 1, characterized in that, The waste gas treatment mechanism (3) includes: A liquid storage tank (30) is located below the spray tower (31) and the two are connected; A circulation pipe (33) is provided with a circulation pump (32); wherein The circulating pump (32) is adapted to pump the liquid in the liquid storage tank (30) through the circulating pipe (33) to the top of the spray tower (31) to purify the waste gas introduced by the waste gas pipe (12).
3. The silver nitrate production and processing apparatus as described in claim 2, characterized in that, The spray tower (31) is internally equipped with a gas stagnation component (35), which includes: A rotary motor (350) is installed at the top of the spray tower (31); A rotating shaft (351) is disposed inside the spray tower (31), and the top end of the rotating shaft (351) passes through the spray tower (31) and is connected to the output end of the rotary motor (350); wherein The rotating shaft (351) is provided with a plurality of gas stagnation mesh plates (352), and each of the gas stagnation mesh plates (352) is provided with a plurality of air holes (353); and A coaxial reverser (354) is provided at each connection point between the gas stagnation mesh plate (352) and the rotating shaft (351).
4. The silver nitrate production and processing apparatus as described in claim 1, characterized in that, The pretreatment unit (2) includes: An ozone generator (20) whose output is connected to the ozone input pipe (21); and An ozone microporous distributor (210) is disposed on the ozone input pipe (21) and located inside the silver nitrate reactor (1); wherein The ozone generator (20) is adapted to introduce the generated ozone into the interior of the silver nitrate reactor (1) through the ozone input pipe (21) and discharge it through the ozone microporous distributor (210) to oxidize the nitrogen oxide gas produced in the reaction inside the silver nitrate reactor (1).
5. A waste gas treatment mechanism, characterized in that, include: A liquid storage tank (30) is located below the spray tower (31) and the two are connected; A circulation pipe (33) is provided with a circulation pump (32); wherein The circulating pump (32) is adapted to pump the liquid in the liquid storage tank (30) through the circulating pipe (33) to the top of the spray tower (31) to purify the waste gas introduced by the waste gas pipe (12).
6. The waste gas treatment mechanism as described in claim 5, characterized in that, The spray tower (31) is internally equipped with a gas stagnation component (35), which includes: A rotary motor (350) is installed at the top of the spray tower (31); A rotating shaft (351) is disposed inside the spray tower (31), and the top end of the rotating shaft (351) passes through the spray tower (31) and is connected to the output end of the rotary motor (350); wherein The rotating shaft (351) is provided with a plurality of gas stagnation mesh plates (352), and each of the gas stagnation mesh plates (352) is provided with a plurality of air holes (353); and A coaxial reverser (354) is provided at each connection point between the gas stagnation mesh plate (352) and the rotating shaft (351).