CN215876588U

CN215876588U - Noble metal recovery equipment for nitric acid device

Info

Publication number: CN215876588U
Application number: CN202121918186.0U
Authority: CN
Inventors: 岳凤杰; 顾宁; 何森林; 丁莹; 闫芳芳
Original assignee: Tus Renewable Resources Technology Development Co ltd
Current assignee: Tus Renewable Resources Technology Development Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-02-22
Anticipated expiration: 2031-08-16

Abstract

The application provides a nitric acid device noble metal recovery plant belongs to noble metal recovery technical field. The noble metal recovery device of the nitric acid device comprises a pipe body and a recovery assembly, wherein the pipe body comprises a middle part and a connecting part, the two connecting parts are arranged at the two ends of the middle part, the recovery component comprises a fixed clamping plate, an inserting plate, a sealing plate, a filter cartridge, a filter screen, a locking part and a fixing part, the fixed clamping plate is arranged in the middle part, the inserting plate is inserted in the fixed clamping plate, the sealing plate is fixedly connected with one end of the inserting plate, the middle part and the connecting part can be connected on a process pipeline, and the filtering cylinder and the filtering screen can filter platinum fine particles contained in the process gas, through setting up fixed cardboard, picture peg, shrouding, retaining member and mounting, can dismantle the recovery noble metal to it regularly to the liquid food of the noble metal that significantly reduces has reduced the loss.

Description

Noble metal recovery equipment for nitric acid device

Technical Field

The application relates to the field of precious metal recovery, in particular to a precious metal recovery device of a nitric acid device.

Background

The worldwide production process of nitric acid is mainly divided into a high-pressure method, a normal-pressure method and a double-pressure method, wherein the double-pressure method is mainly used. The production of nitric acid takes ammonia and oxygen as raw materials, and the ammonia and the oxygen are fully combusted and combined through platinum net catalysis. In the production of nitric acid, the working temperature of the platinum net is 850-880 ℃, and the loss of the platinum net is gradually increased along with the working time under the continuous impact of high-pressure airflow.

The current method for reducing platinum consumption mainly comprises the following steps: a palladium collecting net is additionally arranged, a DEC function covering net is used, and a noble metal recoverer is arranged. The addition of the trapping net or the use of the functional net has obvious effect on platinum consumption reduction, but still a considerable amount of platinum fine particles are lost along with high-temperature gas along a process pipeline, so that precious metals are continuously wasted after long-time work, and further, the loss is not small.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the application provides a nitric acid device precious metal recovery device, which aims to solve the problem that precious metals are not wasted in the traditional platinum consumption reducing mode.

The embodiment of the application provides a nitric acid device noble metal recovery plant includes body and recovery subassembly.

The pipe body includes intermediate part and connecting portion, connecting portion are provided with two, two connecting portion set up in the intermediate part both ends.

Retrieve the subassembly including fixed cardboard, picture peg, shrouding, cartridge filter, filter screen, retaining member and mounting, fixed cardboard set up in the intermediate part, the picture peg is inserted and is located in the fixed cardboard, shrouding fixed connection in picture peg one end, the window has been seted up to the intermediate part, the shrouding with window looks adaptation, the cartridge filter is provided with a plurality ofly, and is a plurality of the cartridge filter evenly run through set up in the picture peg, the filter screen cover is located the cartridge filter outside, the retaining member connect in the picture peg with between the cartridge filter, the mounting cup joint in connecting portion with the shrouding outside.

In the implementation process, the middle part and the connecting part are arranged to connect the process pipeline, the filter cartridge and the filter screen are arranged to filter fine platinum particles contained in the process gas, and the fixed clamping plate, the inserting plate, the closing plate, the locking part and the fixing part are arranged to regularly detach and recover precious metals, so that liquid food of the precious metals is greatly reduced, and loss is reduced.

In a specific embodiment, the retaining member includes a screw and a nut, screw one end fixed connection in the picture peg top, cartridge filter one end is provided with the connecting block, the connecting block slip cup joint in the screw outside, nut threaded connection in screw one end, just the nut is pressed the connecting block top.

In the implementation process, the screw, the nut and the connecting block are arranged, so that the filter cartridge can be conveniently disassembled and assembled.

In a specific embodiment, two screwing blocks are arranged on the outer side of the nut, and the screwing blocks are arc-shaped.

In the implementation process, the nut is conveniently and manually screwed by arranging the screwing block.

In a specific embodiment, the fixing member includes two hoops and two locking bolts, the two hoops are sleeved on the outer sides of the connecting portion and the sealing plate, and the locking bolts are connected to the two hoops.

In the implementation process, the two hoop sleeves are sleeved outside the connecting portion and the sealing plate, and the locking bolt and the nut are reused for locking and fixing, so that the disassembly and the assembly are convenient.

In a specific embodiment, a gasket is arranged in the hoop.

In the implementation process, the gasket is arranged, so that the hoop is fixed more firmly.

In a particular embodiment, a sealing ring is provided between the sealing plate and the window.

In the implementation process, the sealing ring is arranged, so that the sealing performance is improved.

In a specific embodiment, the fixing clamping plate is provided with a slot, and the inserting plate is inserted into the slot in a sliding manner.

In the implementation process, the slot is formed for the sliding insertion of the inserting plate.

In a specific embodiment, a handle is arranged on the outer side of the sealing plate, and an anti-slip sleeve is sleeved on the handle.

In the implementation process, the sealing plate is convenient to draw out through the handle.

In a specific embodiment, a flange is arranged at one end of the connecting part.

In the implementation process, the flange plate is arranged, so that the flange plate can be conveniently connected with a process pipeline.

In a particular embodiment, the intermediate portion, the connecting portion and the flange are integrally formed.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a precious metal recovery device of a nitric acid plant provided by the embodiment of the application;

FIG. 2 is a schematic structural diagram of a recycling assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a retaining member according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a fixing element according to an embodiment of the present application.

In the figure: 100-a tube body; 110-an intermediate portion; 111-a window; 120-a connecting portion; 121-flange plate; 200-a recovery assembly; 210-a fixed clamping plate; 211-slot; 220-plug board; 230-closing plate; 231-sealing ring; 232-a handle; 240-a filter cartridge; 241-connecting block; 250-a filter screen; 260-a retaining member; 261-screw; 262-a nut; 2621-screwing block; 270-a fixing member; 271-anchor ear; 2711-washer; 272-locking bolt.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1-4, the present application provides a precious metal recovery apparatus for a nitric acid plant, which includes a pipe body 100 and a recovery assembly 200.

Referring to fig. 1, the pipe body 100 includes an intermediate portion 110 and two connecting portions 120, the two connecting portions 120 are disposed at two ends of the intermediate portion 110, it should be noted that a flange 121 is disposed at one end of the connecting portion 120, and the flange 121 is disposed to facilitate connection with a process pipeline, and specifically, the intermediate portion 110, the connecting portions 120 and the flange 121 are integrally formed.

Referring to fig. 1, 2, 3 and 4, the recycling assembly 200 includes a fixing clip board 210, an insert board 220, a sealing board 230, a filter cartridge 240, a filter screen 250, a locking member 260 and a fixing member 270, the fixing clip board 210 is disposed in the middle portion 110, the fixing clip board 210 is integrally formed in the middle portion 110, the insert board 220 is inserted into the fixing clip board 210, specifically, the fixing clip board 210 is provided with a slot 211, the insert board 220 is slidably inserted into the slot 211, the slot 211 is provided for slidably inserting the insert board 220, the sealing board 230 is fixedly connected to one end of the insert board 220, the sealing board 230 is welded to the insert board 220, the middle portion 110 is provided with a window 111, the sealing board 230 is adapted to the window 111, a sealing ring 231 is disposed between the sealing board 230 and the window 111, the sealing ring 231 is disposed on the outer side of the sealing board 230, and the handle 232 is sleeved with an anti-slip sleeve, be convenient for take out shrouding 230 through setting up handle 232, filter cartridge 240 is provided with a plurality ofly, and a plurality of filter cartridges 240 evenly run through and set up in picture peg 220, and filter screen 250 cover is located the filter cartridge 240 outside, and retaining member 260 is connected between picture peg 220 and filter cartridge 240, and the mounting 270 cup joints in the connecting portion 120 and the shrouding 230 outside.

In this embodiment, retaining member 260 includes screw rod 261 and nut 262, screw rod 261 one end fixed connection is in picture peg 220 top, screw rod 261 welds in picture peg 220, cartridge filter 240 one end is provided with connecting block 241, cartridge filter 240 integrated into one piece has connecting block 241, connecting block 241 slides and cup joints in the screw rod 261 outside, nut 262 threaded connection is in screw rod 261 one end, and nut 262 presses at the connecting block 241 top, through setting up screw rod 261, nut 262 and connecting block 241, can make things convenient for the dismouting of cartridge filter 240, it is required to explain, the nut 262 outside is provided with two and twists piece 2621, it is the arc to twist piece 2621, through setting up and twisting piece 2621, make things convenient for manual nut 262 that twists.

In this embodiment, the fixing member 270 includes the staple bolt 271 and the locking bolt 272, the staple bolt 271 is provided with two, connecting portion 120 and shrouding 230 outside are located to two staple bolts 271 covers, the locking bolt 272 is connected in two staple bolts 271, cover in the connecting portion 120 and the shrouding 230 outside through two staple bolts 271, it is fixed to recycle locking bolt 272 and nut to lock, thereby conveniently carry out the dismouting, it needs to explain, be provided with the packing ring 2711 in the staple bolt 271 through setting up the packing ring 2711, help the staple bolt 271 fixed more firm.

The working principle of the nitric acid device precious metal recovery equipment is as follows: the device is connected to a process pipeline through a flange plate 121, gas in the pipeline enters the middle part 110 through the connecting part 120, when the gas passes through the middle part 110, the precious metal particles in the gas are filtered by the filter cylinder 240 and the filter screen 250, after the device is used for a period of time, the hoop 271 and the locking bolt 272 are taken down, the handle 232 is pulled, the closing plate 230 is driven by the handle 232 to move, the closing plate 230 drives the inserting plate 220 to move, the inserting plate 220 drives the filter cylinder 240 to move, the inserting plate 220 is moved out of the slot 211 and then taken out, the nut 262 is screwed off, the filter cylinder 240 is taken down, the filtered precious metal particles are cleaned, and the cleaned filter cylinder 240 is replaced, so that the liquid food of the precious metal is greatly reduced, and the loss is reduced.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A nitric acid device noble metal recovery device is characterized by comprising

The pipe body (100) comprises a middle part (110) and two connecting parts (120), wherein the two connecting parts (120) are arranged, and the two connecting parts (120) are arranged at two ends of the middle part (110);

retrieve subassembly (200), retrieve subassembly (200) including fixed cardboard (210), picture peg (220), shrouding (230), cartridge filter (240), filter screen (250), retaining member (260) and mounting (270), fixed cardboard (210) set up in intermediate part (110), picture peg (220) are inserted and are located in fixed cardboard (210), shrouding (230) fixed connection in picture peg (220) one end, window (111) have been seted up in intermediate part (110), shrouding (230) with window (111) looks adaptation, cartridge filter (240) are provided with a plurality ofly, a plurality of cartridge filter (240) evenly run through set up in picture peg (220), filter screen (250) cover is located the cartridge filter (240) outside, retaining member (260) connect in picture peg (220) with between cartridge filter (240), the fixing piece (270) is sleeved on the outer sides of the connecting part (120) and the sealing plate (230).

2. The precious metal recovery plant of claim 1, wherein the locking member (260) comprises a screw (261) and a nut (262), one end of the screw (261) is fixedly connected to the top of the inserting plate (220), one end of the filter cartridge (240) is provided with a connecting block (241), the connecting block (241) is slidably sleeved outside the screw (261), the nut (262) is in threaded connection with one end of the screw (261), and the nut (262) is pressed on the top of the connecting block (241).

3. The precious metal recovery plant of claim 2, wherein two screwing blocks (2621) are arranged outside the nut (262), and the screwing blocks (2621) are arc-shaped.

4. The nitric acid plant precious metal recycling equipment according to claim 1, wherein the fixing member (270) comprises two hoops (271) and two locking bolts (272), the two hoops (271) are sleeved outside the connecting part (120) and the sealing plate (230), and the locking bolts (272) are connected to the two hoops (271).

5. The precious metal recovery plant of claim 4, wherein a gasket (2711) is arranged in the anchor ear (271).

6. A nitric acid plant precious metal recovery apparatus according to claim 1, wherein a sealing ring (231) is provided between the sealing plate (230) and the window (111).

7. The precious metal recovery equipment of the nitric acid plant according to claim 1, wherein the fixing clamping plate (210) is provided with a slot (211), and the inserting plate (220) is inserted into the slot (211) in a sliding manner.

8. The precious metal recovery equipment of a nitric acid plant according to claim 1, wherein a handle (232) is arranged on the outer side of the sealing plate (230), and the handle (232) is sleeved with an anti-slip sleeve.

9. A nitric acid plant precious metal recovery apparatus according to claim 1, wherein one end of the connecting part (120) is provided with a flange (121).

10. A nitric acid plant precious metal recovery apparatus according to claim 9, wherein the intermediate portion (110), the connecting portion (120) and the flange (121) are integrally formed.