A reaction kettle cleaning defogging device

Abstract

The application relates to a reaction kettle cleaning and demisting device which can be detachably installed at a manhole of a reaction kettle and comprises a fan and a plurality of connecting arms, one end of each connecting arm being connected with the fan, and the other end of each connecting arm being used for detachable connection with a frame of the manhole. Compared with the prior art, the reaction kettle cleaning and demisting device can be installed at the manhole of the reaction kettle, water mist in the reaction kettle can be extracted after descaling is completed, the temperature and humidity in the reaction kettle are rapidly reduced, the water mist concentration is reduced to a level that can be entered by a person, and the descaling operation time is greatly shortened.

Description

Technical Field

[0001] This application relates to the field of reactor cleaning technology, and in particular to a reactor cleaning and demisting device. Background Technology

[0002] Currently, in the hydrometallurgical process for laterite nickel ore, slurry, sulfuric acid, and steam are typically injected into a high-pressure reactor for smelting to extract nickel and cobalt from the ore. After operation, the inner wall of the high-pressure reactor will form a scale-like precipitate mainly composed of iron and aluminum, which needs to be cleaned when the scale accumulation is significant.

[0003] Current descaling methods involve spraying a descaling agent followed by high-pressure water rinsing. The high-pressure water impacts the inner wall of the reactor, creating numerous small droplets that fill the reactor with water mist. Because the high-pressure water mist has a heating effect, it creates a high-temperature, high-humidity environment inside the reactor. This water mist obstructs visibility and affects breathing. Therefore, after descaling is completed, personnel must wait for the water mist to settle and dissipate before entering the reactor to inspect and evaluate the descaling effect and disassemble the equipment.

[0004] Waiting for the water mist to dissipate takes a long time, resulting in an excessively long overall time for the descaling operation.

[0005] Application content

[0006] In view of this, it is necessary to provide a reactor cleaning and demisting device to solve the technical problem that water mist inside the reactor cannot be removed quickly in the prior art.

[0007] This application provides a reactor cleaning and demisting device, which is detachably installed at the manhole of the reactor and includes: a fan and several connecting arms, one end of the connecting arm is connected to the fan, and the other end of the connecting arm is detachably connected to the frame of the manhole.

[0008] Furthermore, the connecting arm includes a connecting rod and a connecting head. One end of the connecting rod is fixedly and rotatably connected to the fan, and the other end of the connecting rod is fixedly and rotatably connected to the connecting head. The connecting head is used for detachable connection to the frame of the manhole.

[0009] Furthermore, the connector includes a fixed plate, a movable plate, and a locking element. The fixed plate is fixedly and rotatably connected to the connecting rod. The movable plate is arranged at intervals relative to the fixed plate and is movably connected. The locking element is connected to the fixed plate and the movable plate to clamp the frame of the manhole between the fixed plate and the movable plate.

[0010] Furthermore, the fixed plate has threaded holes, and the movable plate has corresponding through holes. The locking element is a bolt, which passes through the through holes and engages with the threaded holes.

[0011] Furthermore, it also includes ducts and absorbers. One end of the duct is connected to the manhole where the ventilator is located, and the other end of the duct is connected to the absorber, which is used to absorb water mist.

[0012] Furthermore, the connecting rod has a connecting ring, and one end of the duct can be hooked onto the connecting ring.

[0013] Furthermore, the absorber includes a housing and absorbent cotton. The housing has an air inlet and multiple air outlets. The air duct is connected to the air inlet. The absorbent cotton is built into the housing and contains alkaline solution.

[0014] Furthermore, the absorber includes a washing tank and an aeration disc. The aeration disc is located at the bottom of the washing tank and is connected to the air duct. The washing tank contains an alkaline solution.

[0015] Furthermore, multiple connecting arms are arranged around the fan, which is an axial flow fan.

[0016] Furthermore, the alkaline solution is either a sodium hydroxide solution or a sodium carbonate solution.

[0017] Compared with the prior art, the reactor cleaning and demisting equipment provided in this application can be installed at the manhole of the reactor. After descaling is completed, the water mist inside the reactor is extracted, which quickly reduces the temperature and humidity inside the reactor and reduces the water mist concentration to a level that allows people to enter, thus greatly shortening the time of descaling operation.

[0018] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it according to the contents of the specification, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings. The specific implementation methods of this application are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0020] Figure 1 is a schematic diagram of the installation of the reactor cleaning and demisting equipment provided in this application;

[0021] Figure 2 This is a schematic diagram of a preferred embodiment of the reactor cleaning and demisting equipment provided in this application;

[0022] Figure 3 for Figure 2 Schematic diagram of the middle connector;

[0023] Figure 4 for Figure 1 A schematic diagram of another embodiment of the absorber. Detailed Implementation

[0024] The preferred embodiments of this application are described in detail below with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of this application to illustrate the principles of this application, but are not intended to limit the scope of this application.

[0025] Please see Figure 1 and Figure 2 This application provides a reactor cleaning and demisting device. This reactor cleaning and demisting device can be applied to the descaling operation of a reactor 100 to quickly remove water mist from inside the reactor 100.

[0026] It should be noted that the reactor cleaning and demisting equipment of the present invention is used in, but not limited to, reactor 100, and can also be applied to other equipment that requires water mist removal. In this invention, only a high-pressure reactor used in the hydrometallurgical process of laterite nickel ore is used as an example for explanation, while the principle applied to other equipment is essentially the same as the principle applied to this equipment, and will not be described in detail here.

[0027] This reactor cleaning and demisting device includes a blower 1 and several connecting arms 2. One end of the connecting arm 2 is connected to the blower 1, and the other end of the connecting arm 2 is used to detachably connect to the frame of the manhole, so that the reactor cleaning and demisting device can be installed at the manhole.

[0028] The reactor 100 typically has multiple manholes. The reactor cleaning and demisting equipment can be installed in some of these manholes, while the others can be left open to create air convection, allowing the water mist to be quickly discharged. Alternatively, the reactor cleaning and demisting equipment can be installed in each manhole, with some exhausting outwards and others blowing air inwards, similarly creating air convection to quickly discharge the water mist.

[0029] In some embodiments, the fan 1 is an axial flow fan, and multiple connecting arms 2 are arranged around the fan 1.

[0030] In some embodiments, the connecting arm 2 includes a connecting rod 21 and a connector 22. One end of the connecting rod 21 is fixedly and rotatably connected to the fan 1, and the other end of the connecting rod 21 is fixedly and rotatably connected to the connector 22. The connector 22 is used for detachable connection to the frame of the manhole. By rotating the connecting rod 21 and the connector 22, manholes of different shapes and sizes can be accommodated, thus allowing the reactor cleaning and demisting equipment to be smoothly installed on different manholes. After rotating to a suitable angle, it is locked to achieve a fixed effect, which can be achieved by tightening bolts or other methods.

[0031] Please see Figure 3In some embodiments, the connector 22 includes a fixed plate 221, a movable plate 222, and a locking member 223. The fixed plate 221 is fixedly and rotatably connected to the connecting rod 21. The movable plate 222 is arranged opposite to and movably connected to the fixed plate 221. The locking member 223 is connected to the fixed plate 221 and the movable plate 222 to clamp the frame of the manhole. In other embodiments, other fixing methods, such as spring clamps, may also be used.

[0032] In this embodiment, the fixed plate 221 has a threaded hole, and the movable plate 222 has a corresponding through hole. The locking member 223 is a bolt, which passes through the through hole and engages with the threaded hole. By turning the bolt, the movable plate 222 can be moved to engage with the fixed plate 221 and clamp the frame of the manhole.

[0033] In some embodiments, the reactor cleaning and demisting device is installed in the manhole at the top of the reactor 100. The water mist inside the reactor 100 is drawn out from the top, and the water mist is quickly diluted and dispersed into the air by the air above.

[0034] High-pressure reactors use concentrated sulfuric acid to react with mineral slurry. During cleaning and descaling, a small amount of sulfuric acid may remain inside the reactor, forming acidic water mist under the impact of high-pressure water. While directly discharging the acidic water mist into the atmosphere is simple, it may pollute the environment. Therefore, in a preferred embodiment, the reactor cleaning and demisting equipment also includes a duct 3 and an absorber 4. One end of the duct 3 is connected to the manhole where the fan 1 is located, and the other end of the duct 3 is connected to the absorber 4. The water mist drawn out by the fan 1 enters the absorber 4 through the duct 3, where the absorber 4 absorbs the water mist.

[0035] In some embodiments, the connecting rod 21 has a connecting ring 211, and one end of the air duct 3 can be hooked onto the connecting ring 211.

[0036] In some embodiments, the absorber 4 includes a housing and absorbent cotton. The housing has an air inlet and multiple air outlets. The duct 3 connects to the air inlet. The absorbent cotton is housed within the housing and contains an alkaline solution. The alkaline solution can quickly absorb and neutralize the sulfuric acid in the water mist. The alkaline solution can be a dilute sodium hydroxide solution or a sodium carbonate solution.

[0037] Please see Figure 4 In other embodiments, the absorber 4 includes a water washing tank 41 and an aeration disc 42. The aeration disc 42 is located at the bottom of the water washing tank 41 and is connected to the air duct 3. The water washing tank 41 contains an alkaline solution to absorb the water mist and the sulfuric acid therein.

[0038] In these embodiments, since the water mist is absorbed rather than directly extracted, the reactor cleaning and demisting device can be installed at the manhole at the bottom of the reactor 100 to reduce installation difficulty.

[0039] Compared with the prior art, the reactor cleaning and demisting equipment provided in this application can be installed at the manhole of the reactor. After descaling is completed, the water mist inside the reactor is extracted, which quickly reduces the temperature and humidity inside the reactor and reduces the water mist concentration to a level that allows people to enter, thus greatly shortening the time of descaling operation.

[0040] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A reaction vessel cleaning and demisting device, characterized in that, It is detachably installed at the manhole of the reactor and includes: a blower and several connecting arms, one end of which is connected to the blower and the other end of which is detachably connected to the frame of the manhole.

2. The reactor cleaning and demisting equipment according to claim 1, characterized in that, The connecting arm includes a connecting rod and a connecting head. One end of the connecting rod is fixedly and rotatably connected to the fan, and the other end of the connecting rod is fixedly and rotatably connected to the connecting head. The connecting head is used for detachable connection to the frame of the manhole.

3. The reactor cleaning and demisting equipment according to claim 2, characterized in that, The connector includes a fixed plate, a movable plate, and a locking member. The fixed plate is fixedly and rotatably connected to the connecting rod. The movable plate is arranged at intervals relative to the fixed plate and is movably connected. The locking member is connected to the fixed plate and the movable plate so that the fixed plate and the movable plate clamp the frame of the manhole.

4. The reactor cleaning and demisting equipment according to claim 3, characterized in that, The fixed plate has a threaded hole, and the movable plate has a corresponding through hole. The locking element is a bolt, which passes through the through hole and is connected to the threaded hole.

5. The reactor cleaning and demisting equipment according to claim 2, characterized in that, It also includes a duct and an absorber. One end of the duct is connected to the manhole where the fan is located, and the other end of the duct is connected to the absorber, which is used to absorb water mist.

6. The reactor cleaning and demisting equipment according to claim 5, characterized in that, The connecting rod has a connecting ring, and one end of the air duct can be hooked onto the connecting ring.

7. The reactor cleaning and demisting equipment according to claim 5, characterized in that, The absorber includes a housing and absorbent cotton. The housing has an air inlet and multiple air outlets. The air duct is connected to the air inlet. The absorbent cotton is built into the housing and contains an alkaline solution.

8. The reactor cleaning and demisting equipment according to claim 5, characterized in that, The absorber includes a washing tank and an aeration plate. The aeration plate is located at the bottom of the washing tank and is connected to the air duct. The washing tank contains an alkaline solution.

9. The reactor cleaning and demisting equipment according to claim 1, characterized in that, Multiple connecting arms are arranged around the fan, which is an axial flow fan.

10. The reactor cleaning and demisting equipment according to claim 7 or 8, characterized in that, The alkaline solution is either a sodium hydroxide solution or a sodium carbonate solution.

Images