阅读说明：本技术 物料凝华装置 (Material desublimation device ) 是由 钱尉兵 陈霞 曹蓉蓉 杨向东 于 2019-11-12 设计创作，主要内容包括：本发明一种物料凝华装置,用于回收气中的硫磺蒸汽与氮气或空气接触后产生硫磺固体的试验,其特征在于,它包括装置主体,所述装置主体包括筒体以及设置在筒体上端的上封头、设置在筒体下端的下接头,筒体为多孔石墨原材料,上封头、下接头均为浸渍不透性石墨材质,筒体、上封头、下接头相互之间粘连；所述装置主体外周套装有外筒,外筒上下两端分别与装置主体之间密封连接,构成一夹层空间,所述夹层空间覆盖筒体外周；所述上封头顶部设置有硫磺蒸汽入口,外筒上设置有氮气或空气入口、氮气或空气出口；所述下接头下方连接有管道。用于固体硫磺加热后产生的硫磺蒸汽与氮气或空气接触后产生硫磺固体,且便于观察。(The invention relates to a material desublimation device, which is used for a test of generating sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air and is characterized by comprising a device main body, wherein the device main body comprises a cylinder body, an upper end socket and a lower joint, the upper end socket is arranged at the upper end of the cylinder body, the lower joint is arranged at the lower end of the cylinder body, the cylinder body is made of porous graphite raw material, the upper end socket and the lower joint are made of impregnation impermeable graphite material, and the cylinder body, the upper end socket and the lower joint are adhered to each other; the outer cylinder is sleeved on the periphery of the device body, the upper end and the lower end of the outer cylinder are respectively in sealing connection with the device body to form an interlayer space, and the interlayer space covers the periphery of the cylinder body; a sulfur steam inlet is formed in the top of the upper end enclosure, and a nitrogen or air inlet and a nitrogen or air outlet are formed in the outer barrel; and a pipeline is connected below the lower joint. The sulfur vapor generated after heating the solid sulfur is contacted with nitrogen or air to generate sulfur solid, and is convenient to observe.)

1. A material desublimation device is used for a test of generating sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air, and is characterized by comprising a device main body, wherein the device main body comprises a cylinder body, an upper end socket and a lower joint, the upper end socket is arranged at the upper end of the cylinder body, the lower joint is arranged at the lower end of the cylinder body, the cylinder body is made of porous graphite raw materials, the upper end socket and the lower joint are made of impregnation impermeable graphite materials, and the cylinder body, the upper end socket and the lower joint are adhered to each other; the outer cylinder is sleeved on the periphery of the device body, the upper end and the lower end of the outer cylinder are respectively in sealing connection with the device body to form an interlayer space, and the interlayer space covers the periphery of the cylinder body; a sulfur steam inlet is formed in the top of the upper end enclosure, and a nitrogen or air inlet and a nitrogen or air outlet are formed in the outer barrel; and a pipeline is connected below the lower joint.

2. The material desublimation device of claim 1, wherein the upper end socket and the cylinder body, and the cylinder body and the lower end socket are respectively in contact fit through step surfaces and are provided with sealing rings.

3. The material desublimation device of claim 2, wherein the sealing ring is an ethylene propylene diene monomer O-ring seal.

4. The material desublimation apparatus of claim 1, wherein the outer cylinder is a steel cylinder.

5. The material desublimation apparatus of claim 1, wherein the conduit is a glass conduit.

Technical Field

The invention relates to the technical field of sulfur desublimation, in particular to a material desublimation device for generating sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air.

Background

In recent years, sulfur recovery and tail gas treatment processes for recovering sulfur from natural gas and refinery gas and reducing SO2 emissions have been developed in a long time based on increasingly stringent environmental requirements. Briefly, there are sub-dew point processes represented by CBA, MCRC, Clinsulf-SDP, Sulfreen and Clauspol, direct oxidation processes represented by Clinsulf-DO, ENsulf, Selectox, Superclaus and Modop, oxygen enrichment processes represented by Oxycolaus, Sure and COPE, and reduction absorption processes represented by SCOT, BSRP, LTGT, Resulf and RAR. In addition, oxidation absorption processes represented by a Wellman-Lord process and a Cansolv process are adopted, and the process flow is complicated, so that equipment corrosion is serious, and the application is not many.

Disclosure of Invention

The invention provides a material desublimation device for producing sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air.

The technical scheme of the invention is as follows:

a material desublimation device is used for generating sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air and comprises a device main body, wherein the device main body comprises a cylinder body, an upper end socket and a lower joint, the upper end socket is arranged at the upper end of the cylinder body, the lower joint is arranged at the lower end of the cylinder body, the cylinder body is made of porous graphite raw materials, the upper end socket and the lower joint are made of impregnated impermeable graphite materials, and the cylinder body, the upper end socket and the lower joint are adhered to each other; the outer cylinder is sleeved on the periphery of the device body, the upper end and the lower end of the outer cylinder are respectively in sealing connection with the device body to form an interlayer space, and the interlayer space covers the periphery of the cylinder body; a sulfur steam inlet is formed in the top of the upper end enclosure, and a nitrogen or air inlet and a nitrogen or air outlet are formed in the outer barrel; and a pipeline is connected below the lower joint.

When the device is used, nitrogen or air enters from a nitrogen or air inlet to fill the interlayer space, flows out from a nitrogen or air outlet and circularly flows; because the cylinder body is made of porous graphite raw material, nitrogen or air in the interlayer space permeates through the cylinder body to enter the inner cavity of the device main body under the action of pressure; the sulfur steam enters the inner cavity of the device main body from a sulfur steam inlet, contacts with nitrogen or air, is desublimated into sulfur solid at normal temperature and normal pressure, falls under the dead weight of the sulfur solid and finally falls into a pipeline; the nitrogen or air in the interlayer space plays two roles, on one hand, the nitrogen or air permeates into the device main body through the cylinder body and is uniformly distributed to be fully contacted with the sulfur steam, and simultaneously, the impact on the sulfur steam to influence the desublimation of the sulfur steam is avoided; on the other hand, because the sulphur steam desublimation must release heat, the desublimation process of sulphur steam is necessarily influenced by too high temperature, and the purpose of controlling the temperature of the inner cavity of the device main body is achieved through heat exchange between the cylinder and nitrogen or air in the interlayer space. Preferably, the barrel needs to be subjected to a leakage test before processing and manufacturing, the upper end face and the lower end face are tightly pressed by steel flanges, and the barrel can be used by utilizing clean tap water without pressurization and water flowing automatically; and the whole body is made of graphite, so that the heat exchanger is corrosion-resistant and has heat exchange capacity.

The upper end enclosure and the cylinder body, and the cylinder body and the lower end enclosure are respectively in contact fit through step surfaces, and are provided with sealing rings; avoiding sulfur steam leakage.

The sealing ring is an ethylene propylene diene monomer O-shaped ring for sealing; good sealing effect and corrosion resistance.

The outer cylinder is a steel cylinder.

The pipeline is a glass pipeline; the tester can observe the internal condition conveniently.

The invention has the advantages of reasonable design and simple structure, is used for generating sulfur solid after sulfur steam generated after solid sulfur is heated contacts with nitrogen or air, and is convenient to observe.

Drawings

FIG. 1 is a schematic structural diagram of a material desublimation device.

In the figure, the device main body 1 comprises a cylinder 1-1, an upper end socket 1-2, a lower joint 1-3, an outer cylinder 2, an interlayer space 3, a sulfur steam inlet 4, nitrogen or air inlet 5, nitrogen or air outlet 6 and a pipeline 7.

Detailed Description

As shown in the figure, the material desublimation device is used for generating sulfur solid after sulfur steam in recovered gas contacts with nitrogen or air, and comprises a device main body 1, wherein the device main body 1 comprises a cylinder body 1-1, an upper end socket 1-2 arranged at the upper end of the cylinder body 1-1 and a lower joint 1-3 arranged at the lower end of the cylinder body 1-1, the cylinder body 1-1 is made of porous graphite raw material, the upper end socket 1-2 and the lower joint 1-3 are made of impregnation impermeable graphite material, and the cylinder body 1-1, the upper end socket 1-2 and the lower joint 1-3 are adhered to each other; an outer cylinder 2 is sleeved on the periphery of the device body 1, the upper end and the lower end of the outer cylinder 2 are respectively connected with the device body 1 in a sealing manner to form an interlayer space 3, and the interlayer space 3 covers the periphery of the cylinder body 1-1; a sulfur steam inlet 4 is formed in the top of the upper end enclosure 1-2, and a nitrogen or air inlet 5 and a nitrogen or air outlet 6 are formed in the outer cylinder 2; a pipeline 7 is connected below the lower joint 1-3; the upper end enclosure 1-2 is in contact fit with the cylinder body 1-1, the cylinder body 1-1 is in contact fit with the lower joint 1-3 through a step surface, and a sealing ring is arranged; the sealing ring is an ethylene propylene diene monomer O-shaped ring for sealing; the outer cylinder 2 is a steel cylinder; the pipeline 7 is a glass pipeline.

Because of the limited character expression, there exist practically unlimited specific structures, and it will be apparent to those skilled in the art that a number of improvements, decorations, or changes may be made without departing from the principles of the present invention, or the above technical features may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.