阅读说明：本技术 一种贵金属回收装置 (Precious metal recovery device ) 是由 李�荣 李小生 李友方 曹会玉 朱国生 朱健 于 2019-11-22 设计创作，主要内容包括：本发明涉及金属回收技术领域,且公开了一种贵金属回收装置,包括氧化炉,氧化炉的内壁顶端固定安装有点火装置,点火装置的左右两侧均固定安装有点火支架,氧化炉的顶端开设有进料口,氧化炉的底端开设有出料口,氧化炉的内壁固定安装有催化网托架,催化网托架的顶端固定安装有催化网。本发明不仅仅只有钯回收网进行回收,在钯回收网的下面,有足够的空间进行这样的设计,再通过物理过滤的方法进行贵金属的二次回收,贵金属催化剂的损耗大大的降低了,同时更降低了此方法生产硝酸的成本,这样的设计不仅是有利于整个硝酸系统的稳定,也降低了硝酸系统的阻力,提高了单位时间内硝酸的生产能力,也降低了硝酸生产的成本。(The invention relates to the technical field of metal recovery, and discloses a precious metal recovery device which comprises an oxidation furnace, wherein an ignition device is fixedly installed at the top end of the inner wall of the oxidation furnace, ignition supports are fixedly installed on the left side and the right side of the ignition device, a feeding hole is formed in the top end of the oxidation furnace, a discharging hole is formed in the bottom end of the oxidation furnace, a catalytic mesh bracket is fixedly installed on the inner wall of the oxidation furnace, and a catalytic mesh is fixedly installed at the top end of the catalytic mesh bracket. The invention not only recovers the palladium recovery net, but also has enough space below the palladium recovery net to perform the design, and then performs the secondary recovery of the noble metal by a physical filtration method, so that the loss of the noble metal catalyst is greatly reduced, and simultaneously the cost for producing the nitric acid by the method is further reduced.)

1. The utility model provides a noble metal recovery unit, includes oxidation furnace (1), its characterized in that, the inner wall top fixed mounting of oxidation furnace (1) has ignition (2), the equal fixed mounting in the left and right sides of ignition (2) has ignition support (6), feed inlet (7) have been seted up on the top of oxidation furnace (1), discharge gate (8) have been seted up to the bottom of oxidation furnace (1), the inner wall fixed mounting of oxidation furnace (1) has catalysis net bracket (4), the top fixed mounting of catalysis net bracket (4) has catalysis net (3), the bottom fixed mounting of catalysis net bracket (4) has recovery tray (5), the equal fixed mounting in the left and right sides of oxidation furnace (1) has installation piece (9), the bottom fixed mounting of installation piece (9) has landing leg (10).

2. A precious metal recovery device according to claim 1, wherein a palladium recovery mesh is arranged between the catalytic mesh (3) and the catalytic mesh support (4).

3. The precious metal recovery device according to claim 1, wherein the recovery tray (5) is a tray-shaped stainless steel structure, the side and bottom surfaces of the recovery tray are provided with stainless steel nets, and the inside of the recovery tray (5) is provided with a plurality of stainless steel nets at an angle.

4. A precious metal recovery device according to claim 1 or 3, wherein the stainless steel net in the recovery tray (5) is at an angle of 0 to 90 degrees to the horizontal.

5. The precious metal recovery device of claim 3, wherein said stainless steel mesh is provided with a high silica needle felt.

Technical Field

The invention relates to the technical field of metal recovery, in particular to a precious metal recovery device.

Background

The internal space of an oxidation furnace of a nitric acid production device by a medium-pressure method is small, other filtering devices cannot be arranged, only one-time recovery is carried out through a recovery net, and the recovery efficiency is low.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a precious metal recovery device.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a noble metal recovery unit, includes the oxidation furnace, the inner wall top fixed mounting of oxidation furnace has ignition, the equal fixed mounting in the left and right sides of ignition has the ignition support, the feed inlet has been seted up on the top of oxidation furnace, the discharge gate has been seted up to the bottom of oxidation furnace, the inner wall fixed mounting of oxidation furnace has the catalysis net bracket, the top fixed mounting of catalysis net bracket has the catalysis net, the bottom fixed mounting of catalysis net bracket has the recovery tray, the equal fixed mounting in the left and right sides of oxidation furnace has the installation piece, the bottom fixed mounting of installation piece has the landing leg.

Preferably, a palladium recovery net is arranged between the catalytic net and the catalytic net bracket.

Preferably, the recovery tray is of a tray-shaped stainless steel structure, stainless steel nets are arranged on the side face and the bottom face of the recovery tray, and a plurality of stainless steel nets are arranged in the recovery tray in an angle mode.

Preferably, the included angle between the stainless steel net arranged in the recovery tray and the horizontal direction is 0-90 degrees.

Preferably, the stainless steel net is provided with a high silica needle felt.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the invention, only the palladium recovery net is used for recovery, enough space is provided below the palladium recovery net for the design, and then the secondary recovery of the noble metal is carried out by a physical filtration method, so that the loss of the noble metal catalyst is greatly reduced, and the cost for producing the nitric acid by the method is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an oxidation furnace; 2. an ignition device; 3. a catalytic mesh; 4. a catalytic mesh support; 5. recovering the tray; 6. an ignition cradle; 7. a feed inlet; 8. a discharge port; 9. mounting blocks; 10. and (7) supporting legs.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, a precious metal recovery device comprises an oxidation furnace 1, an ignition device 2 is fixedly installed at the top end of the inner wall of the oxidation furnace 1, ignition supports 6 are fixedly installed on the left side and the right side of the ignition device 2, a feed inlet 7 is arranged at the top end of the oxidation furnace 1, a discharge outlet 8 is arranged at the bottom end of the oxidation furnace 1, a catalytic mesh bracket 4 is fixedly installed on the inner wall of the oxidation furnace 1, a catalytic mesh 3 is fixedly installed at the top end of the catalytic mesh bracket 4, a recovery tray 5 is fixedly installed at the bottom end of the catalytic mesh bracket 4, installation blocks 9 are fixedly installed on the left side and the right side of the oxidation furnace 1, supporting legs 10 are fixedly installed at the bottom end of the installation blocks 9, a high silica needle punched felt is arranged on a stainless steel mesh, a palladium recovery mesh is arranged between the catalytic mesh 3 and the catalytic mesh bracket 4, an included angle between a stainless steel mesh arranged in, stainless steel nets are arranged on the side surface and the bottom surface of the recovery tray 5, and a plurality of stainless steel nets are arranged inside the recovery tray in an angle mode.

In the invention, when the precious metal recovery device is used, an oxidation furnace 1, an ignition device 2, a catalytic net 3 and a catalytic net bracket 4 are sequentially arranged in an inner cavity of the oxidation furnace 1 from top to bottom, the ignition device 2, the catalytic net 3 and the catalytic net bracket 4 are arranged in the oxidation furnace from bottom to top, a recovery tray 5 is arranged at the lower end of the catalytic net bracket 4, the recovery tray 5 is a tray-shaped stainless steel structure, stainless steel nets are arranged on the side surfaces and the bottom surface of the recovery tray 5, a plurality of stainless steel nets are arranged in the recovery tray 5 in an angled mode, a high silica needle felt is arranged on each stainless steel net, a palladium recovery net is arranged between the catalytic net 3 and the catalytic net bracket 4, and an included angle between each stainless steel net arranged in the recovery tray.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.