CN203187102U

CN203187102U - Micro-silicon density increasing device

Info

Publication number: CN203187102U
Application number: CN 201320024148
Authority: CN
Inventors: 朱达全; 吴伟成
Original assignee: Sichuan Hongyuan Environmental Protection Science & Technology Co Ltd
Current assignee: Sichuan Hongyuan Environmental Protection Science & Technology Co Ltd
Priority date: 2013-01-17
Filing date: 2013-01-17
Publication date: 2013-09-11
Anticipated expiration: 2023-01-17

Abstract

A micro-silicon density increasing device comprises a stock bin, a feeding cyclone separator, a feeding air induced duct, a feeding induced draft fan, a feeding whirly valve of a density increasing bin, a circular cone hopper, a sub-region density increasing fluidized bed, a density increasing support and a discharge outlet of the density increasing bin. The micro-silicon density increasing device further comprises N sub-regions and switching valves, wherein the N sub-regions are formed by dividing the sub-region density increasing fluidized bed by N sub-region chamber separation boards. Each sub-region chamber is provided with a wind averaging sieve board and a ventilation layer. The switching valves correspond to the sub-region chambers. Each switching valve is provided with a valve board which is used for controlling strong wind and weak wind. An annular wind channel and a wind averaging valve seat connected with the switching valves are arranged on the switching valves. According to the micro-silicon density increasing device, the density of micro-silicon is increased by the adoption of cycle operation of regional strong and weak distribution pressure wind, boiling and turbulent-type density increasing of the micro-silicon are carried out in the bin, the density increasing efficiency is improved, the structure is reasonable, the pressure wind source is saved, and energy consumption is reduced.

Description

The SILICA FUME encryption device

Technical field

The flue dust SILICA FUME that the utility model belongs to behind the ferro-alloy environment protection treating is recycled the field, relate to the efficient subregion of a kind of employing specifically and be encrypted reclaiming flue dust " SILICA FUME ", make the flue dust of ferroalloy smelting reclaim " SILICA FUME " by loose treatment facility to closely knit conversion.

Background technology

Ferro-alloy " industrial silicon, 75 silicon " will produce a large amount of flue gases when smelting, as not administering, to destroy air environment, and bring serious consequence, and to administer flue gas and can produce a large amount of flue dust " SILICA FUME ", " SILICA FUME " initial density of recovery has only 150-200kg/m ³Expend very big expense in transportation, such as the train cover of " SILICA FUME " of original density one 60 tons can only adorn about 18 tons, the working expenses of the product per ton of converting accounts for the ratio of price sometimes up to 50%, so solving the SILICA FUME cryptography issue is the preferred approach of cost-cutting.

In order to improve the conveying efficiency of " SILICA FUME ", some manufacturer has taked the density measure, just initiatively is that concrete company is supplied the density SILICA FUME as the factory of states such as Canada, Sweden, the U.S., Norway.SILICA FUME traffic cost through density is lower, loads and unloads not dust, and work situation is good; Be easy to pumping, level of mechanization height.Do not influence its stirring and dispersive property after the SILICA FUME density, in the concrete production process, the scientific research personnel finds: adopt the density SILICA FUME more to be conducive to stir, improve concrete Combination property, thereby the density SILICA FUME is more and more universal in the application of building material products such as cement concrete, in addition, SILICA FUME also begins to popularize in the application of aspects such as refractory material, coating, building, water conservancy project.

Be pearl through the SILICA FUME after encrypting, bulk density is by original SILICA FUME 0.2t/ m in bulk ³About increase to 0.3 ~ 0.6 t/ m ³, can make the packed and transported expense reduce about 30 ~ 60% like this.Handling efficiency raising, storage space and occupation of land reduce, are fit to automated production, the flying dust phenomenon no longer appears in on-the-spot feeding in raw material, thereby have improved labor condition and environment.

Existing SILICA FUME encryption technology has machinery and pressurized air dual mode, mostly adopts pressurized air to encrypt at present, and with regard to encryption, the consumes energy height is genuine high energy consumption.SILICA FUME encryption difficult point is at present: the energy consumption height, it is big to control difficulty, is perplexing the SILICA FUME encryption device always and is further developing.

Summary of the invention

The purpose of this utility model is the deficiency that overcomes the said apparatus existence, provide a kind of rational in infrastructure, processing and manufacturing is easy, the efficient height, effective, reclaim dust and encrypt (from 150 kg/m ³Encryption is to 650 kg/m ³), be convenient to transportation and store.

The solution of utility model technical matters is: a kind of SILICA FUME encryption device, comprise feed bin, charging cyclone, charging induced duct, charging induced draft fan, encrypt circle round valve, circular cone hopper, subregion of storehouse charging and encrypt fluid bed, encrypt bin bracket, encrypt the warehouse discharging mouth and constitute, it is characterized in that: the inside that also is included in subregion encryption fluid bed is separated into N branch gas tank chamber and corresponding with transfer valve by chamber, N subregion every plate And, the valve plate of the strong and weak wind of control is housed on the transfer valve, and transfer valve and annular passage and equal air valve seat link.

The flue dust of a kind of industrial silicon, 75 hot stove of silicon mine is transported to the encryption storehouse through the dust " SILICA FUME " behind the bag collector by the negative pressure strength and is encrypted.The defeated pipe of negative pressure strength connects bag collector ash bucket ash hole, dust in the negative pressure strength pipe is transported to cyclone (2), dust after the separation is through revolution discharger (5), the feed bin (1) of packing into, begin to encrypt after waiting to declare certain altitude, the air of certain pressure is arranged from annular passage (14), by being contained in transfer valve (12) valve plate (13) on the annular passage (14), averaging wind pipe valve seat (15), to gas tank chamber, subregion (l6), feed the pressure air of different amounts, pressure air makes goods fluid by equal pneumatic jig plate (10) and ventilative layer (11), there are 2 locellus (diagonal angle) to feed the pressure air of big flow simultaneously, feed the interval material strenuous exercise of big flow pressure air, do not feed the chamber material journey fluidized state of big flow pressure air, circulation feeds the pressure air of different flow on time in turn to each locellus, make SILICA FUME do turbulent motion and the directive dust that acts on, make between the SILICA FUME particle and be able to polymerization.Circulation feeds the pressure air of different flow by transfer valve (12) and PLC control on time in turn to each locellus.

There is aperture to feed a certain amount of pressure air on the valve plate (13) of described transfer valve (12), makes SILICA FUME maintenance fluidization in the storehouse.Realize that low baking temperature is cooked congee, thereby the boiled function of very hot oven reduces the pressure air consumption and reaches purpose of energy saving.Each chamber inflationtime parameter can be adjusted as requested at any time, and memory function is arranged, and is not had a power failure etc. because of the influence of rope, and it is convenient to revise parameter.To the various combination of each chamber inflation sequence, can realize multiple cipher mode.

The mechanism that SILICA FUME is encrypted mainly is that SILICA FUME is done turbulent motion, and the directive SILICA FUME that acts on, and makes between the SILICA FUME particle and is able to polymerization.

SILICA FUME is encrypted can be by blasting no oily anhydrous pressurized air to the grey storehouse of storage, and SILICA FUME is done turbulent motion in the kinetic energy drive storehouse that has by pressurized air, and the even and directive dust that acts on of air-flow makes between the SILICA FUME particle and is able to polymerization.Thereby raising bulk density, ciphering process is to act on the pressure differential pressure of SILICA FUME and temperature conversion according to pressurized air to obtain the simulation flow and control, different bulk densities can obtain by flow, and encrypting SILICA FUME with pressurized air is one of cipher mode at present with the most use.

The beneficial effects of the utility model are to cry to show to have improved the efficient of encrypting, and have reduced energy consumption, have reduced operating cost.

Description of drawings

Fig. 1 is the utility model SILICA FUME encryption device structural representation;

Fig. 2 is the utility model SILICA FUME encryption device sectional structure scheme drawing;

Fig. 3 is that the utility model SILICA FUME encryption device locellus is encrypted the fluid bed cutaway view;

1 feed bin, 2 charging cyclones, 3 charging whirlwind induced ducts, 4 charging whirlwind induced draft fans, 5 encryption storehouse charging rotovalves, 6, circular cone hopper, 7 subregions encryption fluid bed, 8 encryption bin brackets, 9 encryption warehouse discharging mouths, 10 equal pneumatic jig plates, 11 ventilative layers, 12 several transfer valves, 13 several strong and weak air-valve plates, 14 annular passages, 15 equal air-valves, 16 are separated into several locellus, 17 several locellus dividing plates among the figure.

The specific embodiment

Below with reference to accompanying drawing to the utility model detailed description in addition;

As shown in the figure: the flue dust SILICA FUME of recovery by delivery pipe insert charging cyclone 2, when the air-flow that contains SILICA FUME enters cyclone with 18～25m/S speed by air inlet pipe, air-flow will become circular movement by straight-line motion.The overwhelming majority of swirling eddy is downward twist from cylinder along wall, flows towards cone.Usually claim that this is outer rotational gas flow.The gas that contains SILICA FUME produces centnifugal force in rotary course, the grit of density greater than gas got rid of to wall.Grit is in case contact with wall, just loses force of inertia and leans on the momentum of entrance velocity and downward gravity to fall along wall, enters ash releasing tube.Packed in the feed bin 1 by the revolution discharger.The outer rotational gas flow that rotation descends is when arriving cone, because cylindrical-conical contraction is drawn close to the disconnector center.According to " whirlwind square " invariance principle, its tangential velocity improves constantly.When air-flow arrives a certain position, cone lower end, namely with same hand of rotation from the cyclone middle part, the shape of from bottom to top continuing to spin is flowed, namely in rotational gas flow.Extract the gas after the separation out by charging induced duct 3, charging induced draft fan 4 at last.The not separated grit of a part is also sent into bag dust collector by induced draft fan 4.When the SILICA FUME in the feed bin l reaches certain position, can be encrypted operation.The valve plate l3 that pressure wind feeds torus section l4, the transfer valve l2 that starts certain locellus then opens this district is fed a large amount of pressure winds, pressure wind by equal air valve seat l5, enter this locellus l6 gas tank, pressure wind by this equal pneumatic jig plate l0, ventilative layer 11, pressure wind kinetic energy is passed to SILICA FUME, make SILICA FUME strenuous exercise.It is the fluidisation attitude in the SILICA FUME that each locellus has only little pressure wind to enter these locellus of maintenance.Pressure wind makes SILICA FUME do turbulent motion, and the directive SILICA FUME that acts on, and is able to polymerization making between the SILICA FUME particle after certain turbulent motion.Each locellus is periodical duty, and the strong and weak air feed of each locellus is to realize by PLC by transfer valve 12.Because of continuous strong and weak air feed, the turbulent flow of each locellus links to each other.Thereby make the SILICA FUME of encrypting in the storehouse occur that very hot oven is boiled, slow fire is cooked congee phenomenon, accelerated polymerization between the SILICA FUME particle.

Claims

1. SILICA FUME encryption device, comprise feed bin, charging cyclone, charging induced duct, charging induced draft fan, encrypt circle round valve, circular cone hopper, subregion of storehouse charging and encrypt fluid bed, encrypt bin bracket, encrypt the warehouse discharging mouth and constitute, it is characterized in that: the inside that also is included in subregion encryption fluid bed is separated into N branch gas tank chamber and corresponding with transfer valve by chamber, N subregion every plate And, the valve plate of the strong and weak wind of control is housed on the transfer valve, and transfer valve and annular passage and equal air valve seat link.

2. according to the described a kind of SILICA FUME encryption device of claim 1, it is characterized in that: be contained in the valve plate of the transfer valve on the annular passage, little air quantity via hole is arranged on its valve plate, have corresponding pressure wind to keep the goods fluid state in order to after keeping this subregion to close.