CN208320757U - One-step method drying acetylene fluidized-bed reactor - Google Patents
One-step method drying acetylene fluidized-bed reactor Download PDFInfo
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- CN208320757U CN208320757U CN201820595404.3U CN201820595404U CN208320757U CN 208320757 U CN208320757 U CN 208320757U CN 201820595404 U CN201820595404 U CN 201820595404U CN 208320757 U CN208320757 U CN 208320757U
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Abstract
The utility model is one-step method drying acetylene fluidized-bed reactor, including by rectangle bed body, pass through bolt and bed body top respectively, the semi-cylindrical shaped bed lid of bottom connection, the lathe bed of semi-cylindrical shaped bed bottom composition, the water-main that one end is connect with water tank, the stepped hole board group being made of at least Pyatyi with the orifice plate of sieve pore is provided in bed body, waste residue outlet positioned at stepped hole board group tail portion, there is the limit material fine tuning baffle in bed body between adjacent orifice plate, there is calcium carbide entrance on one end on bed lid far from waste residue outlet, it is opposite on bed lid, there is reaction water inlet in the position of orifice plates at different levels respectively, there is acetylene gas outlet on bed lid, one end is each passed through corresponding reaction water inlet on bed lid with the other end of each distributive pipe of water-main connection respectively and enters in bed lid, bed has carbide slag outlet on bottom, nitrogen inlet, by be symmetricly set on lathe bed synchronizing in the same direction Vibrator drive bed body elastic support.The utility model is simple and reliable, meets bulky grain calcium carbide reacts, it is safe and environment-friendly to meet.
Description
Technical field:
The utility model is related with drying acetylene reactor, especially has with one-step method drying acetylene fluidized-bed reactor
It closes.
Background technique:
Calcium carbide chemical name is known as calcium carbide, is one of base stock of synthetic organic chemical manufacturing industry.The chemical property of calcium carbide
It is very active, it meets water and acutely decomposes generation acetylene and calcium hydroxide (carbide slag), and release a large amount of heat.Traditional method is water
Lower reaction process not only safety but also had controlled heat release, but water consumption is 10 times of calcium carbide or more, and carbide slag is sunken under water, discharge
It is paddle slag, environmental protection is difficult to solve.National environmental protection, fwaater resources protection policy encouragement under, the technology of drying acetylene
Biggish development is obtained.
So-called dry acetylene generation process is that it is dry powder (below water content 10%) that calcium carbide, which meets the carbide slag that water reaction generates, reaction
Thoroughly to be unable to the carbonization calcium component of remained unreacted.Dry acetylene generation process to be applied is led at present, is that calcium carbide is ground into 1
~3mm sand grains participates in reaction.The present inventor once researched and developed the two-step method reaction process of oversized particles (15~20mm), and it is special to obtain invention
Economic rights (patent No. ZL200710050104.3).Cardinal principle is the reaction time according to particle calcium carbide, not only with granular size
Related, more important is related with active constituent content.The calcium carbide reaction time of onesize particle differs several times to tens
Times.The calcium carbide for making content high in first reactor (differential kneader) inner fast reaction, allow content it is low be transported to the second reaction
Device (planet cone helical reactors), slow reaction is until reaction terminating.Be also configured in process conveying equipment at different levels, heat exchanger,
The positive and negative water seal of acetylene, calcium carbide granulated slag storehouse, water system, nitrogen seal system, instrument and meter etc..
The basic difficulty that the technique encounters is the pretreatment that calcium carbide crushes, it is desirable that reaches the particle of 15~20mm, powder containing quantity
Less than 15%, compare and be crushed to for the grains of sand of 1~3mm, is more suitable for high-moisture production environment in southern air.But still
Need to be broken using two-stage, the first order is broken with low speed Hubei Province, and calcium carbide is crushed within 60mm, and powder spreading is small, then is delivered to high-energy-rate hammering
It is crushed within 20mm, crosses vibrating screen, it is broken to be greater than 20mm oversize return hammer.This process production powder fugitive dust is very big, ring occurs
The contradiction in border and safety said and needs dedusting in environmental protection, and from safety, the reaction of moisture in this dirt and air becomes combustible gas
Body, and release a large amount of heat.It is all difficult to avoid that in collection, conveying, dust removal process and meets electrostatic.Also have at present and takes nitrogen envelope
Method, but it is heated after granulated carbide can react generation nitrolim again with nitrogen, generate the gas of another inflammable-explosive.Always
Inherently a security risk of calcium carbide dust and environment hidden danger, there has been the report of Lessons now.
Dry acetylene generation process is for using unit, it is most desirable to carry out dry process reaction with coarse crushed calcium-carbide, calcium carbide is located in advance
Reason becomes simple, and broken only with level-one Hubei Province, block grain≤60mm only sieves almost without fugitive dust, and calcium carbide factory can also be direct
The supply of material.This is the not only basic method of environmental protection but also safety, below the scheme of just blocky calcium carbide one-step method fluidized-bed reactor give
It is bright.
Utility model content:
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provide it is a kind of it is simple and reliable, meet bulky grain
Calcium carbide reaction, the one-step method drying acetylene fluidized-bed reactor for meeting safe and environment-friendly requirement.
Purpose of the utility model is realized as follows:
The utility model one-step method drying acetylene fluidized-bed reactor, including by rectangle bed body, respectively by bolt and bed
The water-main of lathe bed, one end and water tank connection that body top, the semi-cylindrical shaped bed lid of bottom connection, semi-cylindrical shaped bed bottom form,
The stepped hole board group being made of at least Pyatyi with the orifice plate of sieve pore is provided in bed body, the waste residue positioned at stepped hole board group tail portion goes out
Mouthful, there is the limit material fine tuning baffle in bed body between adjacent orifice plate, have calcium carbide entrance on one end far from waste residue outlet on bed lid,
There is reaction water inlet in the position of orifice plate relatively at different levels respectively on bed lid, there is acetylene gas outlet on bed lid, one end respectively with water-main
The other end of each distributive pipe of connection is each passed through corresponding reaction water inlet on bed lid and enters in bed lid, and bed has carbide slag on bottom
Outlet, nitrogen inlet, by the bed body elastic support for synchronizing vibrator in the same direction and driving being symmetricly set on lathe bed.
Above-mentioned stepped hole board group is made of six grades of orifice plates with sieve pore, limit material fine tuning baffle and orifice plate between gap by
50mm, 40mm, 30mm, 20mm, 10mm reduce step by step.
The screen-aperture of every grade of above-mentioned orifice plate is Φ 3mm, and adjacent sieve pitch of holes is 7~8mm.
Acetylene gas outlet has a pipe bundle condenser by pipeline and acetylene gas outlet on above-mentioned bed lid, on bed lid
There is the condensation water inlet communicated by pipeline with pipe bundle condenser.
There is explosion-proof safety window on above-mentioned bed lid.
Calcium carbide particle rolls under the promotion of vibration force to bound forward, and surface and water spray haptoreaction delamination make reaction surface not
Disconnected to be updated, volume can reduce step by step, and can be step by step by the gap of baffle, and calcium carbide can participate in reaction on entire bed surface.
It is arranged for the dosing container of water control water in the upper surface of fluidized bed, is measured with calcium carbide by 1:1 weight ratio.By control valve, flowmeter control
System.The high temperature acetylene gas of generation rises to pipe bundle condenser, after vapor condensation, is back to fluidisation bed surface and participates in reaction.Meanwhile
Reaction heat is taken away, pipe bundle condenser is connected with PTFE bellows with fluidized bed and completes being isolated between sound, reacts generation
Carbide slag concentrates below bed body temporarily storing.After the completion of a collection of secondary response, vibration frequency is adjusted, carbide slag is defeated by exporting
Send out material.Waste residue is exported by waste residue outlet.Oscillating column pump is arranged symmetrically fluidized bed two sides, is adjusted to mirror surface symmetric orientation.Frequently
Rate, amplitude, direction of vibration may be adjusted to the overall process for meeting calcium carbide reaction.
Security control is become simply, to react using single batch, waste residue outlet, the outlet of electronics slag are set as closing out.Block
The dry process reaction condition of shape calcium carbide is: first, constantly spray water；Second, it constantly updates and reacts new face, allow the carbide powder after reaction
It must fall down, the reaction was continued for ability.In tandem reaction sequence, the volume and shape of blocky calcium carbide are all constantly changing, body
Product is being gradually reduced, and the corner angle of shape are rounded sliding.For conditions above, we devise vibration ladder fluidized-bed reactor, energy
Reaction condition more than satisfaction, also can control the reaction time, and ratio of water to material is controlled in≤1:1.Reaction process mainly controls list
Total confluent of position time.
Reaction process is as follows: after blocky calcium carbide is put into reactor first order ladder orifice plate by 300Kg mass with calcium carbide barrel,
Nitrogen displacement is led to entire fluidized bed, rear enclosed calcium carbide entrance, calcium carbide enters ladder of the first order with sieve pore.Open oscillating column pump electricity
Machine is started simultaneously at and is sprayed water step by step, and the blocky calcium carbide of reaction limits it by the limit material fine tuning baffle being arranged on each ladder and passes through
Size.Limit material fine tuning baffle vertical direction and the gap of ladder orifice plate are reduced step by step by 50~10, every level-one limit material fine tuning gear
Plate vertical adjusting limit material height.It such as reacts and is set in total time 1 hour, total water consumption is controlled in 300L, i.e., 5L/min per minute
Total amount of water sprayed, every level-one amount of water sprayed adjustable are equal.In calcium carbide total residence time, the frequency of adjustable oscillating column pump, amplitude,
Direction of vibration, to meet the flow regime that calcium carbide reaction all processes need.Calcium carbide constantly rolls new face under vibrating conditions,
It is the complete reaction that can reach calcium carbide within the reaction time of setting.
The utility model is simple and reliable, meets the reaction of bulky grain calcium carbide, meets safe and environment-friendly requirement.
Detailed description of the invention:
The main view of Fig. 1 the utility model.
Fig. 2 is the top view of utility model.
Fig. 3 is the right view of utility model.
Fig. 4 is that utility model limit fine tuning baffle adjusts high-level schematic.
Fig. 5 is the top view of Fig. 4.
Specific embodiment
Referring to FIG. 1 to FIG. 5, the present embodiment one-step method drying acetylene fluidized-bed reactor, including by rectangle bed body 1, respectively
The lathe bed of the semi-cylindrical shaped bed lid 2, the composition of semi-cylindrical shaped bed bottom 3 that are connect by bolt with bed body top, bottom, one end and water tank
The water-main 6 of connection.It is provided with stepped hole board group that the orifice plate 14 by six grades with sieve pore forms in bed body, is located at stepped hole board group
The waste residue outlet 9 of tail portion.There is the limit material fine tuning baffle 15 in bed body between adjacent orifice plate.The one of separate waste residue outlet on bed lid
There is calcium carbide entrance 4 on end.There is reaction water inlet 16 respectively with respect to the position of, orifice plate at different levels on bed lid.There is acetylene gas to go out on bed lid
Mouth 7.One end is each passed through corresponding reaction water inlet 16 into bed with the other end of each distributive pipe 11 of water-main connection respectively
Gai Zhong.Spray head 10 is respectively provided on each distributive pipe.There is carbide slag outlet 5 on bed bottom, nitrogen inlet 8, be symmetricly set on lathe bed
On synchronize vibrator in the same direction (pump) 12 drive bed body elastic support 13.Between limit material fine tuning baffle vertical direction and orifice plate
Gap is reduced step by step by 50mm, 40mm, 30mm, 20mm, 10mm.The screen-aperture of every grade of orifice plate is Φ 3mm.Between adjacent sieve pore
Center is away from for 7~8mm.Acetylene gas outlet has the pipe bundle condenser 17 by pipeline and acetylene gas outlet, bed on bed lid
Cover the condensation water inlet 18 communicated by pipeline with pipe bundle condenser.The explosion proof window 19 of safe operation is provided on bed lid.
The operating process of the present embodiment:
1, the preparation before feeding intake: first opening nitrogen inlet, replaces to the air in fluidized bed, makes oxygen content <
20ppm simultaneously keeps 20kpa pressure.The proportion of calcium carbide and water is 1:1, is measured with single batch.Such as calcium carbide 300kg, water tank should prepare
Water 300L.
2, driving sequence be after calcium carbide disposably enters fluidized bed calcium carbide entrance, carbide slag outlet 5 and waste residue outlet 9.It opens
Dynamic oscillating column pump 2, adjusts frequency, does not generate subject to resonance, and adjustment amplitude, which is subject to, meets material conveying.Calcium carbide is in more piece ladder
It bounds forward on the bed surface of orifice plate, opens reaction water inlet 16, calcium carbide and water start hydrolysis, and very exothermic, calcium carbide
After grain surface hydrolysis reaction, starts delamination and form the product carbide powder after reaction, fall on a bottom through sieve plate hole sizer.Reaction process
In calcium carbide particle volume can constantly reduce, and step by step by limit material fine tuning baffle, until reaction terminating.Not reactive ferrosilicon
Waste residue is stacked on the bed surface of final section.
3, calcium carbide adds water to be strong exothermal reaction, controls 100 DEG C of temperature < of fluidized bed to control feedwater flow, and determine
Total reaction time.The speed of calcium carbide reaction is the flow for controlling reaction water.If total reaction time is 60min, then feedwater flow
It just should be 5L/min, when driving successively from first to last opens distributive pipes water spray valves at different levels, and it is equal to adjust flows at different levels.
4, the total Water reacted discharges the termination for being considered as reaction, is further continued for 10~15min of vibration, drops to 50 DEG C to bed temperature
After stop.Open after carbide slag goes out 5 mouthfuls and waste residue outlet 9, be again turned on the low speed frequency of oscillating column pump about 10%, allow carbide slag and
Bed body is gradually discharged in waste residue.The aqueous acetylene gas that reactor generates rises, and into pipe bundle condenser 17, pipe bundle condenser is returned
Flowing water enters fluidized bed again and participates in reaction.After acetylene gas enters back into water seal washing, input Acetylene Gas Holder storage.
Claims (5)
1. one-step method drying acetylene fluidized-bed reactor, it is characterised in that including by rectangle bed body, respectively by bolt and bed body
The water-main of lathe bed, one end and water tank connection that top, the semi-cylindrical shaped bed lid of bottom connection, semi-cylindrical shaped bed bottom form, bed
The stepped hole board group being made of at least Pyatyi with the orifice plate of sieve pore is provided on body, the waste residue positioned at stepped hole board group tail portion goes out
Mouthful, there is the limit material fine tuning baffle in bed body between adjacent orifice plate, have calcium carbide entrance on one end far from waste residue outlet on bed lid,
There is reaction water inlet in position on bed lid with respect to, orifice plate at different levels respectively, there is acetylene gas outlet on bed lid, one end respectively with water-main
The other end of each distributive pipe of connection is each passed through corresponding reaction water inlet on bed lid and enters in bed lid, and bed has carbide slag on bottom
Outlet, nitrogen inlet, by the bed body elastic support for synchronizing vibrator in the same direction and driving being symmetricly set on lathe bed.
2. one-step method drying acetylene fluidized-bed reactor according to claim 1, it is characterised in that stepped hole board group is by six
Grade with sieve pore orifice plate composition, limit material fine tuning baffle vertical direction and orifice plate between gap by 50mm, 40mm, 30mm, 20mm,
10mm reduces step by step.
3. one-step method drying acetylene fluidized-bed reactor according to claim 1 or 2, it is characterised in that the sieve of every grade of orifice plate
Hole aperture is Φ 3mm, and adjacent sieve pitch of holes is 7~8mm.
4. one-step method drying acetylene fluidized-bed reactor according to claim 1 or 2, it is characterised in that acetylene gas on bed lid
There is the pipe bundle condenser by pipeline and acetylene gas outlet in exit, has on bed lid and is communicated by pipeline with pipe bundle condenser
Condensation water inlet.
5. one-step method drying acetylene fluidized-bed reactor according to claim 1 or 2, it is characterised in that there is safety on bed lid
Explosion proof window.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820595404.3U CN208320757U (en) | 2018-04-25 | 2018-04-25 | One-step method drying acetylene fluidized-bed reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820595404.3U CN208320757U (en) | 2018-04-25 | 2018-04-25 | One-step method drying acetylene fluidized-bed reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950956A (en) * | 2022-04-29 | 2022-08-30 | 林景辉 | System and method for separating silicon iron and calcium carbide from carbide slag |
-
2018
- 2018-04-25 CN CN201820595404.3U patent/CN208320757U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114950956A (en) * | 2022-04-29 | 2022-08-30 | 林景辉 | System and method for separating silicon iron and calcium carbide from carbide slag |
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