CN2841575Y

CN2841575Y - Mixing bunker

Info

Publication number: CN2841575Y
Application number: CN 200520041945
Authority: CN
Inventors: 许向明; 曹永军; 赵凯峰; 许燕
Original assignee: KSD BULK SOLIDS ENGINEERING Co Ltd
Current assignee: KSD BULK SOLIDS ENGINEERING Co Ltd
Priority date: 2005-05-27
Filing date: 2005-05-27
Publication date: 2006-11-29
Anticipated expiration: 2015-05-27

Abstract

The utility model relates to a mixing bunker, which comprises an upper cylinder body (1), a three-cavity mixing tube (5), lower cones (2, 3, 4) and a mixing chamber (9) connected with the lower cones (2, 3, 4) through a central pipe (7). The utility model is characterized in that the mixing bunker also comprises at least more than one degassing tubes (10, 11) connected with the lower cones (2, 3, 4). The utility model has the advantages that mixing rate after once mixing can be increased; conveying capacity under the premise that the mixing rate is qualified can be increased; a small amount of reaction kettle remained in semi-finished products and finished products or non-completely reacted waste gas monomer or volatile gas in a polymerization tower can be removed; the quality of the semi-finished products and the finished products can be improved; a small quantity of moisture remained in semi-finished products and finished products can be removed, so that the semi-finished products and the finished products can be further dried; the temperature of the semi-finished products and the finished products higher than room temperature can be cooled.

Description

Mixing silo

Technical field

The utility model relates to a kind of mixing silo, relates in particular to the conical section in this mixing silo.

Background technology

In industries such as petrochemical complex, electric power, grain, coal, half-blank and finished product are sent to packing after granulation, section, often use a kind of solid granule pipeline transporter, and promptly so-called strength is carried, the blending device.Mixing silo (also have and be referred to as the homogenizing feed bin) is a main equipment in strength conveying, the blending device, also is that influence is transferred, the visual plant of this index of quality of blending material degree of uniformity.

Mixing silo generally comprises four parts: top cylindrical shell, three chamber blending pipe, bottom cone and the blending chamber that links to each other with the bottom cone.The shell portion of mixing silo and three chamber blending pipe all have ripe design at traditional in the past product, and there are many shortcoming and defect parts in the bottom cone of mixing silo, has influenced production:

The blending rate of traditional mixing silo after a blending has only 60%-70%, can't satisfy this requirement of higher blending rate (most of half-blanks and finished product all needs more than 90%).If reach this requirement of high blending rate, the repeatedly outer circulation blending of just having to has so not only increased energy consumption, and has reduced output, also influences quality (frangible material can produce dust in the blending process);

Because the operation technological requirement of mixing silo is at the state of normal pressure or pressure-fired (0.001MPa), some material that is transferred is higher than outdoor normal temperature, therefore having small amount of moisture in mixing silo and in the pipeline separates out, be unfavorable for very much carrying and blending, can be in the cone of the bottom of mixing silo when serious arch camber or stop up delivery duct;

Unreacted waste gas monomer or volatile gas completely in also residual a small amount of reactor or the polymerization tower in many half-blanks of petroleum chemical industry and finished product has a strong impact on the quality of half-blank and finished product;

Three chamber blending pipe in the mixing silo have circular hole from top to bottom at various height, and the number of circular hole and area are important parameter of structure design, can satisfy feed flow, can guarantee that again each aspect material blending is even.Because the state of kinematic motion of solid material is to belong to the gravity bulk flow in the mixing silo, therefore buying securities with all one's capital or during half storehouse, the even effect of feed flow and blending is desirable, and when level of filler material in the storehouse drops to the bottom cone, three chamber blending pipe are inoperative, have only the discharging opening of bottom cone can discharge, so feed flow and the even effect of blending just descend greatly.

Summary of the invention

The utility model technical issues that need to address have provided a kind of mixing silo, are intended to solve above-mentioned defective.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises top cylindrical shell, three chamber blending pipe, bottom cone and the blending chamber that links to each other by base pipe with the bottom cone; Also comprise link to each other with described bottom cone, at least more than one deaeration pipe;

Compared with prior art, the beneficial effects of the utility model are: improve the blending rate after the blending; Improve the operational throughput under the qualified prerequisite of blending rate one time; Remove in a small amount of reactor residual in half-blank and the finished product or the polymerization tower unreacted waste gas monomer or volatile gas completely, improve the quality of half-blank and finished product; Remove small amount of moisture residual in half-blank and the finished product, make half-blank and finished product further dry; For half-blank that is higher than room temperature and finished product, the cooling of can lowering the temperature.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

As seen from Figure 1: the utility model comprises top cylindrical shell 1, three chamber blending pipe 5, bottom cone (2,3,4) and the blending chamber 9 that links to each other by base pipe 7 with bottom cone (2,3,4); Also comprise link to each other with described bottom cone (2,3,4), at least more than one deaeration pipe (10,11);

Described bottom cone comprises auger 2, middle awl 3, conelet 4; Described auger 2 is fixedly linked with cylindrical shell 1, and described middle awl 3 is fixedly linked with auger 2, and described conelet 4 is fixedly linked with middle awl 3; Described deaeration pipe (10,11) comprises last deaeration pipe 10 that links to each other with middle awl 3 and the following deaeration pipe 11 that links to each other with conelet 4;

Described auger 2 is fixedly linked with cylindrical shell 1, middle awl 3 is fixedly linked with auger 2, conelet 4 is fixedly linked with middle awl 3 is welding;

The utility model can also comprise: at the lower end of described base pipe 7 in circumferential 0 °, 90 °, 180 °, 270 ° four holes 71 of opening equal diameters;

The utility model can also comprise: at least more than one, the blending pipe 6 that links to each other with auger 2, middle awl 3, conelet 4; Described blending pipe 6 circumferentially links to each other with blending chamber 9 at blending chamber 9 sustained heights and at five equilibrium; And by isolated with the three chamber blending pipe 5 that enter bottom cone (2,3,4) at described base pipe 7 and a cage ring on hole 71, locating to settle 8;

Blending rate after the blending improves greatly, can reach more than 90%; (carry tolerance, air pressure, temperature, delivery duct caliber) when adopting identical pneumatic conveying process parameter, improve operational throughput more than 10%.

Because the utility model is usefulness of double as storage silo all generally, the warehouse volume ratio is bigger, can not take to stir the degree of uniformity that waits other technological operation means to improve material, (in addition many half-blanks of petroleum chemical industry and finished product are all than being easier to fragmentation, do not allow and change particle diameter), therefore only under the prerequisite of gravity bulk flow principle of work, plan improved technical scheme, be only feasible.

Because residual waste gas monomer or volatile gas, concentration is not high, but proportion varies, therefore must be when mixing silo carries out outer loop blending and discharge conveying, in the storehouse, charge into clean, dry air or unreactable gas from mixing silo bottom cone, cleaned air that charges into or unreactable gas will have certain pressure, could replace, drive and get rid of waste gas monomer or volatile gas residual in the material.The utility model has increased newly and has removed the deaeration pipe of waste gas monomer or volatile gas completely of unreacted in residual a small amount of reactor of material in the mixing silo or the polymerization tower, has improved the quality of half-blank and finished product.Owing in the storehouse, charge into clean, dry air or unreactable gas from mixing silo bottom cone, waste gas monomer or volatile gas residual in the material not only can be replaced, drive and be got rid of to clean, the dry air or the unreactable gas that charge into, also got rid of a spot of moisture in the material simultaneously.Clean, the dry air or the unreactable gas that charge in the storehouse are normal temperature, and be lower than material temperature, so again material has been played the cooling cooling effect.

The utility model is metal construction except that building material industry is concrete structure, be many with corrosion-resistant steel and aluminum alloy especially.

Below the utility model is explained in detail: the physical construction technical scheme is embodied in all to be improved four parts of mixing silo bottom cone.They are cone, base pipe, blending pipe and blending chamber.

Cone:

Cone design before the utility model is exactly the common whole circular cone bucket that discharging opening is arranged.The utility model becomes three sections compositions to the bottom taper designs, large, medium and small three nestable layer by layer, be mutual welding.And in, weld a deaeration pipe on the fine taper respectively.

Base pipe:

Traditional base pipe only has a bottom streams outlet, and the utility model also circumferentially waits in the base pipe bottom and separated four streams outlets except the outlet of bottom streams.

Blending pipe:

Traditional bottom cone does not have blending pipe.The utility model cuts down three and is welded with some blending pipe on portion's cone respectively, all is pooled to the blending chamber.

The blending chamber:

Traditional blending chamber is exactly a common passage that compiles three chamber blending pipe and base pipe.The utility model has designed a cage ring in the inside of blending chamber.

Auger is the connecting bridge of whole mixing silo cone and mixing silo top cylindrical shell, and it is to weld with the top cylindrical shell;

Middle awl also is to be connected with welding with auger, flanged (FLGD) deaeration pipe of going up of welding on the middle awl straight section, and last deaeration pipe passes cylindrical shell, is convenient to the connection of steam line.

Conelet is connected with welding equally with middle awl, also welds a flanged (FLGD) deaeration pipe down on the conelet straight section, and following deaeration pipe also passes cylindrical shell, is convenient to the connection of steam line.

Base pipe and conelet welding, the foot of base pipe straight section is in circumferential 0 °, 90 °, 180 °, 270 ° holes of opening equal diameters, and this hole should can not be blocked by cage ring again at the foot of base pipe straight section; The following outlet of base pipe must be higher than the cone of blending chamber.

In some blending pipe every blending pipe be from auger, the diverse location perforate of awl, conelet pick out, be pooled to the blending chamber downwards, it but is circumferential at the five equilibrium of blending chamber sustained height entering the blending chamber, has and the root blending pipe is exactly several equal portions.

Cage ring must enter between the two circle perforates of blending chamber in three chamber blending pipe and blending pipe the blending chamber, can separate the materials flow of three chamber blending pipe and blending pipe like this, can form the passage of their two bursts of materials flows again.

The caliber of last deaeration pipe and following deaeration pipe will calculate air pressure according to the requirement of degassing index, tolerance is fixed.

Claims

1. a mixing silo comprises top cylindrical shell (1), three chamber blending pipe (5), bottom cone (2,3,4) and the blending chamber (9) that links to each other by base pipe (7) with bottom cone (2,3,4); It is characterized in that: also comprise link to each other with described bottom cone (2,3,4), at least more than one deaeration pipe (10,11).

2. mixing silo according to claim 1 is characterized in that: described bottom cone comprises auger (2), middle awl (3), conelet (4); Described auger (2) is fixedly linked with cylindrical shell (1), and described middle awl (3) is fixedly linked with auger (2), and described conelet (4) is fixedly linked with middle awl (3); Described deaeration pipe (10,11) comprises last deaeration pipe (10) that links to each other with middle awl (3) and the following deaeration pipe (11) that links to each other with conelet (4).

3. mixing silo according to claim 2 is characterized in that: described auger (2) is fixedly linked with cylindrical shell (1), middle awl (3) is fixedly linked with auger (2), conelet (4) is fixedly linked with middle awl (3) is welding.

4. according to claim 1 or 2 or 3 described mixing silos, it is characterized in that: at the lower end of described base pipe (7) in circumferential 0 °, 90 °, 180 °, 270 ° four holes (71) of opening equal diameters.

5. according to claim 2 or 3 described mixing silos, it is characterized in that: can also comprise: at least more than one, the blending pipe (6) that links to each other with auger (2), middle awl (3), conelet (4); Described blending pipe (6) circumferentially links to each other with blending chamber (9) at blending chamber (9) sustained height and at five equilibrium; And by described base pipe (7) and in the hole (71) to go up a cage ring (8) of settling at the place isolated with the three chamber blending pipe (5) that enter bottom cone (2,3,4).

6. mixing silo according to claim 4 is characterized in that: can also comprise: at least more than one, the blending pipe (6) that links to each other with auger (2), middle awl (3), conelet (4); Described blending pipe (6) circumferentially links to each other with blending chamber (9) at blending chamber (9) sustained height and at five equilibrium; And by described base pipe (7) and in the hole (71) to go up a cage ring (8) of settling at the place isolated with the three chamber blending pipe (5) that enter bottom cone (2,3,4).