A tail gas purification treatment device for bio-oxidation gold extraction

Abstract

The utility model discloses a tail gas purification treatment device of biological oxidation gold extraction relates to tail gas purification treatment device technical field, the utility model discloses a main frame mechanism, the main frame mechanism includes the purification tower, the left side fixedly connected with the air inlet pipeline of purification tower outer surface, the top fixedly connected with the exhaust pipe of purification tower, the bottom fixedly connected with the deflector of purification tower inside, the utility model discloses a purification subassembly is set up, specifically is through setting up multilayer carbon filling layer, and carbon filling layer adopts the mixture of active carbon and modified molecular sieve, can increase the contact area and contact time of tail gas and absorption liquid and adsorbent, improve the removal efficiency to harmful gas, simultaneously, sodium hydroxide and hydrogen peroxide in absorption liquid can carry out chemical reaction and oxidation decomposition to different properties harmful gas, thereby realize the efficient purification to multiple harmful gas, effectively reduced the emission concentration of harmful substance in tail gas, and the environmental protection emission standard has been greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of exhaust gas purification and treatment devices, and in particular relates to an exhaust gas purification and treatment device for bio-oxidation gold extraction. Background Technology

[0002] During the bio-oxidation gold extraction process, a large amount of exhaust gas containing harmful gases, such as sulfur dioxide and nitrogen oxides, is generated. If these harmful gases are directly emitted, they will not only cause serious pollution to the atmospheric environment and harm human health, but also affect the surrounding ecological balance. Existing exhaust gas purification and treatment devices have some shortcomings, such as insufficient purification efficiency, unsatisfactory removal effect on certain specific harmful gases, and limited treatment of exhaust gas properties. Therefore, a bio-oxidation gold extraction exhaust gas purification and treatment device is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a tail gas purification treatment device for bio-oxidation gold extraction. By setting up purification components, specifically by setting up multiple layers of carbon filling, and the carbon filling layers are a mixture of activated carbon and modified molecular sieves, the contact area and contact time between the tail gas and the absorbent and adsorbent can be increased, thereby improving the removal efficiency of harmful gases. At the same time, sodium hydroxide and hydrogen peroxide in the absorbent can chemically react and oxidize harmful gases of different properties, thereby achieving efficient purification of a variety of harmful gases, effectively reducing the emission concentration of harmful substances in the tail gas, significantly improving environmental emission standards, and solving some shortcomings of existing tail gas purification treatment devices, such as insufficient purification efficiency, unsatisfactory removal effect on certain specific harmful gases, and the problem of treating tail gas with a single property.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a tail gas purification device for bio-oxidation gold extraction, comprising a main frame mechanism, the main frame mechanism including a purification tower, an air inlet pipe fixedly connected to the left side of the outer surface of the purification tower, an exhaust pipe fixedly connected to the top of the purification tower, a guide plate fixedly connected to the bottom of the interior of the purification tower, a purification component disposed inside the purification tower, and a circulation component disposed on the outer surface of the purification tower. The purification component includes several activated carbon filling layers, the outer rings of which are fixedly connected to the inner wall of the purification tower. A motor is disposed on the left side of the exhaust pipe, the bottom of which is fixedly connected to the top of the purification tower. A gear is disposed at the top of the interior of the purification tower. The pipeline is equipped with several fan blades. The bottom output end of the motor is fixedly connected to a rotating shaft via a coupling. The rotating shaft passes through the purification tower and extends into the interior. The outer surface of the rotating shaft is rotatably connected to the interior of the purification tower. The bottom of the outer surface of the rotating shaft is fixedly connected to the interior of a gear. By setting multiple layers of carbon filling, and the carbon filling layer is a mixture of activated carbon and modified molecular sieve, the contact area and contact time between the exhaust gas and the absorbent and adsorbent can be increased, thereby improving the removal efficiency of harmful gases. At the same time, sodium hydroxide and hydrogen peroxide in the absorbent can chemically react and oxidize harmful gases of different properties, thereby achieving efficient purification of multiple harmful gases and effectively reducing the emission concentration of harmful substances in the exhaust gas.

[0006] Furthermore, a second gear is meshed with the outer surface of the first gear. The top of the outer surface of the second gear is rotatably connected to the interior of the purification tower. A bracket is fixedly connected to the inner wall of the second gear, and a rotating rod is fixedly connected inside the bracket. The outer surface of the rotating rod, away from the bracket, is fixedly connected to the side corresponding to several fan blades. When the motor is started, it drives the rotating shaft to rotate. The rotation of the rotating shaft drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate. The rotation of the second gear drives the bracket to rotate, and the rotation of the bracket drives several fan blades to rotate through the rotating rod. When the fan blades rotate, they generate a certain negative pressure inside the purification tower. At this time, the exhaust gas, after being filtered through multiple layers of activated carbon, is discharged from the interior of the purification tower through the exhaust pipe, thus completing the purification treatment of the exhaust gas.

[0007] Furthermore, a diversion water pump is provided at the bottom of the gear two. The outer ring of the diversion water pump is fixedly connected to the inner wall of the purification tower. Several nozzles are provided on the top of the activated carbon filling layer located at the top. The side of the nozzles near the inner wall of the purification tower is fixedly connected to the outlet end of the diversion water pump. The absorbent and adsorbent inside the diversion water pump will be sprayed out through the nozzles. The sprayed absorbent and adsorbent will fall into the activated carbon filling layer. At the same time, the activated carbon filling layer is composed of a mixture of activated carbon and modified molecular sieve.

[0008] Furthermore, the circulation assembly includes a storage tank, the inner wall of which is fixedly connected to the outer surface of the purification tower. A liquid outlet pipe is fixedly connected to the top of the storage tank, and the side of the liquid outlet pipe away from the storage tank is fixedly connected to the inlet of the diversion pump. A circulation pump is installed at the bottom of the storage tank, and a fixed bracket is fixedly connected to the outer surface of the circulation pump. The side of the fixed bracket away from the circulation pump is fixedly connected to the outer surface of the purification tower. The absorbent and adsorbent inside the storage tank will enter the diversion pump through the liquid outlet pipe.

[0009] Furthermore, both the inlet and outlet ends of the circulating pump are fixedly connected to inlet pipes. The side of the inlet pipe at the outlet end away from the circulating pump is fixedly connected to the bottom of the storage tank. A filling pipe is fixedly connected to the top left side of the storage tank. The side of the inlet pipe at the inlet end away from the circulating pump is fixedly connected to the bottom of the purification tower. A filter screen is fixedly connected inside the inlet pipe at the inlet end away from the circulating pump. After the exhaust gas passes through the multi-layer activated carbon filling layer for filtration, it will be discharged from the purification tower through the exhaust pipe. At this time, the purification treatment of the exhaust gas is completed. At the same time, the absorbent and adsorbent inside the multi-layer activated carbon filling layer will drip downwards under the action of gravity, and then flow into the inlet pipe through the action of the guide plate. When the absorbent and adsorbent flow into the inlet pipe, they will first be filtered by the filter screen to avoid a large number of impurities in the absorbent and adsorbent. At this time, the absorbent and adsorbent inside the inlet pipe will re-enter the storage tank for use through the action of the circulating pump.

[0010] This utility model has the following beneficial effects:

[0011] 1. This utility model, by setting up a purification component, specifically by setting up a multi-layer carbon filling layer, and the carbon filling layer is a mixture of activated carbon and modified molecular sieve, can increase the contact area and contact time between the exhaust gas and the absorbent and adsorbent, thereby improving the removal efficiency of harmful gases. At the same time, sodium hydroxide and hydrogen peroxide in the absorbent can chemically react and oxidize harmful gases of different properties, thereby achieving efficient purification of a variety of harmful gases, effectively reducing the emission concentration of harmful substances in the exhaust gas, and significantly improving environmental emission standards. The motor and transmission structure are set up to realize the active discharge of exhaust gas. The absorbent and adsorbent remove impurities during each cycle of adsorption to ensure reaction efficiency.

[0012] 2. This utility model incorporates a circulation component, specifically using a mixture of sodium hydroxide solution and hydrogen peroxide solution in a certain proportion as the absorbent. These two raw materials are widely available and relatively inexpensive. Furthermore, the absorption liquid is recycled through a circulation pump, reducing the consumption of the absorbent liquid, avoiding unnecessary energy waste, and lowering the operating energy consumption of the device.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the purification tower of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0018] Figure 4 This is a schematic diagram of the overall structure of the gear 2 of this utility model;

[0019] Figure 5 This is a schematic diagram of the overall structure of the gear of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Main frame structure; 111. Purification tower; 112. Air inlet pipe; 113. Exhaust pipe; 114. Baffle plate; 2. Circulation assembly; 211. Liquid storage tank; 212. Liquid outlet pipe; 213. Circulation pump; 214. Fixed bracket; 215. Liquid inlet pipe; 216. Filling pipe; 217. Filter screen; 3. Purification assembly; 311. Motor; 312. Diverter pump; 313. Nozzle; 314. Activated carbon filling layer; 315. Rotating shaft; 316. Gear 1; 317. Gear 2; 318. Fan blade; 319. Support; 320. Rotating rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5As shown, this utility model is a tail gas purification treatment device for bio-oxidation gold extraction, including a main frame mechanism 1. The main frame mechanism 1 includes a purification tower 111. An air inlet pipe 112 is fixedly connected to the left side of the outer surface of the purification tower 111, and an exhaust pipe 113 is fixedly connected to the top of the purification tower 111. A guide plate 114 is fixedly connected to the bottom inside the purification tower 111. A purification component 3 is installed inside the purification tower 111, and a circulation component 2 is installed on the outer surface of the purification tower 111. The purification component 3 includes several activated carbon filling layers 314, and the outer rings of the several activated carbon filling layers 314 are fixedly connected to the inner wall of the purification tower 111. A motor 311 is installed on the left side of the exhaust pipe 113, and the bottom of the motor 311 is fixedly connected to the top of the purification tower 111. A gear 316 is installed at the top inside the purification tower 111. The exhaust pipe 113 is equipped with several fan blades 318. The bottom output end of the motor 311 is fixedly connected to a rotating shaft 315 via a coupling. The rotating shaft 315 passes through the purification tower 111 and extends into the interior. The outer surface of the rotating shaft 315 is rotatably connected to the interior of the purification tower 111. The bottom of the outer surface of the rotating shaft 315 is fixedly connected to the interior of gear 316. By setting multiple layers of carbon filling, and the carbon filling layer is a mixture of activated carbon and modified molecular sieve, the contact area and contact time between the exhaust gas and the absorbent and adsorbent can be increased, thereby improving the removal efficiency of harmful gases. At the same time, sodium hydroxide and hydrogen peroxide in the absorbent can chemically react and oxidize harmful gases of different properties, thereby achieving efficient purification of multiple harmful gases, effectively reducing the emission concentration of harmful substances in the exhaust gas, and significantly improving environmental emission standards.

[0024] Gear 2 317 is meshed with the outer surface of gear 1 316. The top of the outer surface of gear 2 317 is rotatably connected to the inside of purification tower 111. A bracket 319 is fixedly connected to the inner wall of gear 2 317. A rotating rod 320 is fixedly connected inside the bracket 319. The side of the outer surface of the rotating rod 320 away from the bracket 319 is fixedly connected to the side of several fan blades 318 corresponding to it.

[0025] Gear 2 317 has a diversion water pump 312 at the bottom. The outer ring of the diversion water pump 312 is fixedly connected to the inner wall of the purification tower 111. The activated carbon filling layer 314 at the top has several nozzles 313. The side of the nozzles 313 near the inner wall of the purification tower 111 is fixedly connected to the water outlet of the diversion water pump 312.

[0026] The circulation component 2 includes a storage tank 211, the inner wall of which is fixedly connected to the outer surface of the purification tower 111. A liquid outlet pipe 212 is fixedly connected to the top of the storage tank 211, and the side of the liquid outlet pipe 212 away from the storage tank 211 is fixedly connected to the inlet of the diversion pump 312. A circulation pump 213 is installed at the bottom of the storage tank 211, and a fixed bracket 214 is fixedly connected to the outer surface of the circulation pump 213. The side of the fixed bracket 214 away from the circulation pump 213 is fixedly connected to the outer surface of the purification tower 111. The absorbent is a mixture of sodium hydroxide solution and hydrogen peroxide solution in a certain proportion. These two raw materials are widely available and relatively inexpensive. Moreover, the circulation pump enables the recycling of the absorbent, reducing the consumption of absorbent, avoiding unnecessary energy waste, and reducing the operating energy consumption of the device.

[0027] Both the inlet and outlet ends of the circulating pump 213 are fixedly connected to inlet pipes 215. The side of the inlet pipe 215 located away from the circulating pump 213 is fixedly connected to the bottom of the storage tank 211. A filling pipe 216 is fixedly connected to the top left side of the storage tank 211.

[0028] The side of the inlet pipe 215 located at the water inlet end away from the circulating pump 213 is fixedly connected to the bottom of the purification tower 111, and a filter screen 217 is fixedly connected inside the inlet pipe 215 located at the water inlet end away from the circulating pump 213.

[0029] A specific application of this embodiment is as follows: In use, firstly, absorbent and adsorbent are added to the storage tank 211 through the filling pipe 216. Then, the inlet pipe 112 is connected to the exhaust pipe. The exhaust gas enters from the bottom side of the purification tower 111 through the inlet pipe 112. At this time, the absorbent and adsorbent inside the storage tank 211 enter the diversion pump 312 through the outlet pipe 212, and then are sprayed out through the nozzle 313. The sprayed absorbent and adsorbent fall into the activated carbon filling layer 314. The activated carbon filling layer 314 is composed of a mixture of activated carbon and modified molecular sieves. Then, the motor 311 is started to drive the rotating shaft 315 to rotate. Simultaneously, the rotating shaft 315 drives the gear one 316 to rotate. When the gear one 316 rotates, it drives the gear two 317 to rotate. Simultaneously, the gear two 317 rotates, driving the support 319 to rotate. When the support 319 rotates, it passes through… The rotating rod 320 drives several fan blades 318 to rotate. When the fan blades 318 rotate, they will generate a certain negative pressure inside the purification tower 111. At this time, the exhaust gas will be discharged from the purification tower 111 through the exhaust pipe 113 after being filtered by the multi-layer activated carbon filling layer 314. At this time, the purification treatment of the exhaust gas is completed. At the same time, the absorbent and adsorbent inside the multi-layer activated carbon filling layer 314 will drip down under the action of gravity, and then flow into the inlet pipe 215 through the action of the guide plate 114. When the absorbent and adsorbent flow into the inlet pipe 215, they will first be filtered by the filter screen 217 to avoid a large number of impurities in the absorbent and adsorbent. At this time, the absorbent and adsorbent inside the inlet pipe 215 will re-enter the storage tank 211 for use through the action of the circulation pump 213. Meanwhile, the fixed bracket 214 provides a certain support for the storage tank 211 by being fixedly connected to the outer surface of the purification tower 111.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with this embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A tail gas purification and treatment device for bio-oxidation gold extraction, characterized in that: The system includes a main frame mechanism (1), which includes a purification tower (111). An air inlet pipe (112) is fixedly connected to the left side of the outer surface of the purification tower (111). An exhaust pipe (113) is fixedly connected to the top of the purification tower (111). A guide plate (114) is fixedly connected to the bottom inside the purification tower (111). A purification component (3) is provided inside the purification tower (111). A circulation component (2) is provided on the outer surface of the purification tower (111).

2. The tail gas purification and treatment device for bio-oxidation gold extraction according to claim 1, characterized in that: The circulation component (2) includes a storage tank (211), the inner wall of which is fixedly connected to the outer surface of the purification tower (111), an outlet pipe (212) is fixedly connected to the top of the storage tank (211), the outlet pipe (212) is fixedly connected to the water inlet of the purification component (3), a circulation pump (213) is provided at the bottom of the storage tank (211), a fixed bracket (214) is fixedly connected to the outer surface of the circulation pump (213), one side of the fixed bracket (214) is fixedly connected to the outer surface of the purification tower (111), the bottom of the circulation pump (213) is connected to the inlet pipe (215), and the bottom of the inlet pipe (215) is fixedly connected to the bottom of the purification tower (111).

3. The tail gas purification and treatment device for bio-oxidation gold extraction according to claim 1, characterized in that: The purification component (3) includes several activated carbon filling layers (314). The outer ring of each activated carbon filling layer (314) is fixedly connected to the inner wall of the purification tower (111). A motor (311) is installed on the left side of the exhaust pipe (113). The motor (311) is mounted on the top of the purification tower (111). A gear 1 (316) is installed on the shaft (315) of the motor (311). A gear 2 (317) is meshed with the outer surface of the gear 1 (316). The top of the outer surface of the gear 2 (317) is connected to the purification tower. The tower (111) is rotatably connected inside. A bracket (319) is fixedly connected to the inner wall of the gear two (317). A rotating rod (320) is fixedly connected inside the bracket (319). Several fan blades (318) are provided inside the rotating rod (320). A diversion water pump (312) is provided below the gear two (317). The outer ring of the diversion water pump (312) is fixedly connected to the inner wall of the purification tower (111). Several nozzles (313) are provided on the top of the activated carbon filling layer (314) at the top. The nozzles (313) are fixedly installed on the diversion water pump (312).

4. The tail gas purification and treatment device for bio-oxidation gold extraction according to claim 2, characterized in that: A filling pipe (216) is fixedly connected to the top left side of the storage tank (211).

5. The tail gas purification and treatment device for bio-oxidation gold extraction according to claim 2, characterized in that: The inlet pipe (215) has a filter screen (217) inside.

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