CN202570136U

CN202570136U - Soaking kettle

Info

Publication number: CN202570136U
Application number: CN 201220214156
Authority: CN
Inventors: 赵岚; 李维真; 尚荣欣; 王连群; 刘春胜
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2012-05-11
Filing date: 2012-05-11
Publication date: 2012-12-05
Anticipated expiration: 2022-05-11

Abstract

The utility model provides a soaking kettle for loading active components in a catalyst onto a catalyst carrier. The soaking kettle comprises an outer housing for receiving a soaking solution containing the active components, and an inner housing arranged in the outer housing and used for receiving the catalyst carrier, wherein the inner housing is constructed into a sieve with sieve meshes. Through the arrangement, the soaking process is safer, time-saving and easy to operate, the production cost is saved, and the produced catalyst is good in granule completeness and high in quality.

Description

The dipping still

Technical field

The utility model relates to the dipping still in oil refining or the chemical industry, is specifically related to a kind of being used for the activity of such catalysts component is carried on the dipping still on the catalyst carrier.

Background technology

Dipping still of the prior art is an individual layer, and is as shown in Figure 1.In the process of preparation loaded catalyst, the dipping solution that will contain active component earlier prepares and places in the still, and manual work pours into catalyst carrier in the still, and through perhaps several hours immersion in ten minutes in full after a while, dipping is accomplished.To soak back liquid drain hole below the dipping still and emit, will flood still again, and have the catalyst carrier of active component to pour out load, get into next oven dry link.

This dipping still of the prior art exists following defective or deficiency.At first; When pouring into catalyst carrier in the still that dipping solution is housed with manual work; Because dipping solution generally contains poisonous and hazardous chemical substances such as acid, alkali, organic matter; And the carrier entry is strong heat release, deflation course, so the volatilization in a large number of the harmful substance in the still liquid, thereby workman's health is caused damage.Secondly, the volume of still is bigger usually in the commercial production, and the flowing seldom of still liquid in dipping process causes dipping inhomogeneous; Although can alleviate through prolonging dip time, production efficiency decreases.The 3rd, the caliber size of tap hole is difficult to design: if the bore of tap hole is less, then the slurry that forms of its carrier fragmentation or dry linting in the impregnated process of regular meeting stops up; And if the bore of tap hole is bigger, then easily catalyst carrier is taken out of, cause catalyst loss.The 4th, in multiple batches of production process, the maceration extract of band active component generally will reclaim use.When the carrier that will flood active component was poured out, because of Separation of Solid and Liquid is not thorough, catalyst carrier was carried partially liq secretly and is got into subsequent processing, causes the loss of the maceration extract of this part band active component.At last, dipping back carrier is poured out difficulty: because of kettle is bigger, wet feed is easy to stick on the still wall, thereby it is bigger that soaked carrier is poured out difficulty, and clear still also is not easy.

The utility model content

The utility model provides a kind of dipping still, comprises the shell that is used to hold the dipping solution that contains active component, and is arranged on the inner casing that is used to hold catalyst carrier in the said shell, and wherein said intrastructure becomes to have the screen cloth of sieve aperture.

In one embodiment, bottom said intrastructure becomes is the cylinder of semi-spherical shape.The aperture of sieve aperture is 0.05～0.95 times of average grain particle diameter of catalyst carrier on the preferred inner casing.

According to a preferred embodiment, said dipping still also comprises circulating pump, is used for the maceration extract of said shell is pumped in the said inner casing.Perhaps said dipping still also comprises and is used to drive the drive unit of said inner casing with respect to said shell motion; As make shell with respect to inner casing translation, rotation or swing.There is relative motion in so design between the maceration extract of feasible band active component and catalyst carrier, and then in shorter dip time, makes dipping more well-balanced, has improved device efficiency and product quality.

According to another preferred embodiment, said dipping still also comprises and is used for lowering or hoisting gear that said inner casing is put into said shell and from said shell, risen.

Use the dipping still of so design to solve some the problems referred to above that exist in the prior art at least, can also bring following two advantages.One of which in the identical multiple batches of dipping of maceration extract is produced, needn't go out clearly every batch of maceration extract; Last batch is soaked back liquid through can directly being used for the maceration extract preparation of next batch after analyzing, has practiced thrift cost of labor.Its two, behind the dipping process N-process, the fragment of catalyst carrier and powder major part are gone out to get in the skin of still by the screen cloth drop, make that the catalyst granules integrity degree that gets into subsequent processing in the internal layer is good, the catalyst quality improves.And the fragment in the entering skin also needn't separate with maceration extract or go out clearly with powder.

Description of drawings

Fig. 1 is the structural representation according to the dipping still of prior art;

Fig. 2 is the structural representation according to the dipping still of first embodiment of the utility model;

Fig. 3 is the partial enlarged drawing of the inner screen in the dipping still shown in Figure 2;

Fig. 4 is the structural representation according to the dipping still of second embodiment of the utility model.

The specific embodiment

Below be merely the preferred embodiment of the utility model, can not limit the scope of the utility model with this.Every one of ordinary skill in the art do not add variation and the modification that creative work is done according to the utility model, all belong to the scope that the utility model patent contains.

Fig. 2 has shown that according to the dipping still 10 among the utility model first embodiment, it is used on catalyst carrier, flooding active component.As shown in the figure, this dipping still 10 comprises shell 1 and the bleeder valve 5 of being located at the at of shell 1.Shell 1 all is that those skilled in the art knows with bleeder valve 5, and it is presented in this in detail and omits.

According to the utility model, dipping still 10 also comprises the inner casing 2 that is arranged in the shell 1.This inner casing 2 is made up of screen cloth.Inner casing 2 is preferably cylindrical structure, and its bottom for example can be semi-spherical shape.In the time of in putting into dipping still 1, the bottom surface of inner casing 2 should be apart from the bottom of shell 1 2cm at least, have an amount of maceration extract with the bottom that remains on shell 1.Inner casing 2 for example can be put in the shell 1 and rise from shell 1 through manual type or lowering or hoisting gear (not shown).According to the character of maceration extract and the specific requirement of dipping, inner casing 2 can be processed by materials such as plastics, pottery, carbon steel, stainless steels.

As shown in Figure 3, inner casing 2 comprises a plurality of sieve apertures 6, and its aperture for example may be selected to be 0.05～0.95 times of average grain particle diameter of catalyst carrier.One of ordinary skill in the art will readily recognize that and satisfying under the required mechanical strength of inner casing 2 that the total hole area of the sieve aperture on the inner casing 2 should be chosen as big as much as possible.

In use, at first catalyst carrier is encased in the inner casing 2, again inner casing 2 is immersed in the dipping still shell 1 that the dipping solution that has prepared is housed.One period scheduled time of dipping as 0.5 to 1 hour after, utilize manual work or lowering or hoisting gear that inner casing 2 is raised to its bottom and break away from the maceration extract liquid level, leave standstill a period of time as 0.5 hour.This moment, a large amount of maceration extracts flowed out via the sieve aperture in the inner casing 26, comes together in the shell 1 of dipping still owing to gravity.Catalyst in the inner casing after draining 2 is poured onto in the oven dry hopper, promptly accomplishes dipping work.In the shell 1 soak the back liquid can in following batch, reuse.

Through the dipping still of the utility model, can make impregnation technology more safely, save time, easy operating and saving production cost.Simultaneously, the catalyst cupport of being produced is more even, and granularity is good.In addition, utilize the dipping still of the utility model, can before dipping, avoid toppling process that catalyst carrier is contacted with still liquid, greatly reduced gas production, favourable to workman's health.In addition, owing to needn't every still discharge soak back liquid, thereby solved the design problem of the caliber size of tap hole.Utilize the dipping still of the utility model can also realize the thorough separation of solid-liquid, avoided the loss of maceration extract, this has also solved the problem that dipping back carrier is poured out difficulty.

Fig. 4 has shown the dipping still 20 according to second embodiment of the utility model.In this embodiment, dipping still 20 also comprises circulating pump 3, is used for extracting the carrier that maceration extract and pumping spray inner casing 2 from shell 1.So just can accelerate flowing of maceration extract, make catalyst carrier flood active component more fast, equably, improve production efficiency.

In another embodiment, the dipping still comprises also and is used for driving the drive unit (not shown) of inner casing 2 with respect to shell 1 motion that these motions for example comprise translation, swing or rotation.In conjunction with this drive unit and above-mentioned lowering or hoisting gear, can control the degree of depth and speed that inner casing 2 immerses in the shell 1 well, help carrying out smoothly of impregnation technology.

The above is merely the preferred implementation of the utility model, but the utility model protection domain is not limited thereto.Any those skilled in the art all can carry out suitable change or variation to it in the disclosed technical scope of the utility model, and this change or variation all should be encompassed within the protection domain of the utility model.

Claims

1. a dipping still comprises the shell (1) that is used to hold the dipping solution that contains active component, and is arranged on the inner casing that is used to hold catalyst carrier (2) in the said shell, and wherein said inner casing (2) is constructed with the screen cloth of sieve aperture (6).

2. dipping still according to claim 1 is characterized in that, it is the cylinder of semi-spherical shape that said intrastructure becomes the bottom.

3. dipping still according to claim 2 is characterized in that, the aperture of said sieve aperture (6) is 0.05～0.95 times of average grain particle diameter of catalyst carrier.

4. according to each described dipping still in the claim 1 to 3, it is characterized in that said dipping still also comprises circulating pump (3), be used for the maceration extract of said shell is pumped in the said inner casing.

5. according to each described dipping still in the claim 1 to 3, it is characterized in that said dipping still also comprises and is used for lowering or hoisting gear that said inner casing is put into said shell and from said shell, risen.

6. dipping still according to claim 5 is characterized in that, said dipping still also comprises circulating pump (3), is used for the maceration extract of said shell is pumped in the said inner casing.

7. according to each described dipping still in the claim 1 to 3, it is characterized in that said inner casing is placed to and makes the bottom of said inner casing be at least 2cm apart from the bottom of said shell.

8. according to each described dipping still in the claim 1 to 3, it is characterized in that said dipping still also comprises and is used to drive the drive unit of said inner casing with respect to said shell motion.

9. dipping still according to claim 8 is characterized in that, said dipping still also comprises and is used for lowering or hoisting gear that said inner casing is put into said shell and from said shell, risen.

10. according to each described dipping still in the claim 1 to 3, it is characterized in that said inner casing is processed by plastics, pottery, carbon steel or stainless steel.