CN207514929U - A kind of grey recycling injection incineration system of the closed purification of calcium carbide - Google Patents
A kind of grey recycling injection incineration system of the closed purification of calcium carbide Download PDFInfo
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- CN207514929U CN207514929U CN201721227132.3U CN201721227132U CN207514929U CN 207514929 U CN207514929 U CN 207514929U CN 201721227132 U CN201721227132 U CN 201721227132U CN 207514929 U CN207514929 U CN 207514929U
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- purification
- grey
- injection
- rotary valve
- nitrogen
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Abstract
The utility model discloses a kind of grey recycling injection incineration system of the closed purification of calcium carbide, including the grey warehouse of a purification, strength rotary valve, strength injection transport system and burning facility, the grey grey transfer pipeline one end of warehouse connection purification of purification, it is blown transport system and includes online injector and strength blast pass conveying device, the other end of the grey transfer pipeline of solid material import connection purification of online injector, gas feed connects one end of gas transfer pipeline, and gas-solid mixture ejiction opening connects the burning facility；Strength blast pass conveying device is arranged on air shooter road；Rotary valve is connected on the purification ash transfer pipeline, the rotary valve includes rotor and housing, it is very safe that gap between rotor and housing is less than 0.8mm the utility model, burn ratio more thoroughly, carrying out recycling to purification ash has larger environmental protection, economic and social benefit, effectively prevents the damage of staff and equipment and the generation of environmental pollution.
Description
Technical field
The utility model belongs to calcium carbide technical field, is related to a kind of grey recycling injection of the closed purification of calcium carbide and burns system
System.
Background technology
The tail gas that closed calcium carbide furnace generates contains 50-150g/Nm3Dust, need to generally be handled by purifier
It is handled afterwards as solid waste.Tail gas initially enters settler and the large dust particle of 40%-50% settles down during purified treatment,
Then cooling dedusting is carried out through air cooler, enters back into bag filter and carry out smart filtering, through settler, air cooler and bag-type dust
The solid dust that device is collected is commonly referred to as purifying and dedusting ash（Referred to as purify ash）.The main processing ways of purification ash is fill out at present
It buries, and containing higher calcium oxide, magnesium, bases and cyanogen etc. in ash content, be susceptible to spontaneous combustion in filling transport process situations such as
The damage of personnel and equipment is caused, meanwhile, serious environmental pollution and the wasting of resources are will also result in after landfill.
Utility model content
The purpose of this utility model is that solving the above problems, provide a kind of closed purification of calcium carbide grey recycling injection
Incineration system realizes the recycling of purification ash, and the processing that environmental protection is reached while certain economic benefit is generated will
It asks.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of grey recycling injection incineration system of the closed purification of calcium carbide, it is characterised in that：Grey warehouse is purified including one,
Rotary valve, strength injection transport system and burning facility are further included,
Grey transfer pipeline one end of outlet connection purification of the grey warehouse lower part of purification,
Strength injection transport system includes online injector and strength blast pass conveying device,
The online injector include solid material import, gas feed and gas-solid mixture ejiction opening, the solid material into
Mouth connects the other end of the purification ash transfer pipeline, which connects one end of gas transfer pipeline, the gas-solid mixture
Ejiction opening connects one end of mixture transfer pipeline；
The strength blast pass conveying device is arranged on air shooter road, to control the pressure with regulation blowing gas
Power and flow；
The burning facility includes at least one drying kiln fluidized bed furnace, is connected to the other end of the mixture transfer pipeline；
The rotary valve is connected on the purification ash transfer pipeline, which includes rotor and housing, on the housing
Inlet port and outlet port are set, be connected with driving device the rotor be arranged in the housing be located at inlet port and outlet port it
Between, the gap between the rotor and the housing is less than 0.8mm.
Further, the grey warehouse setting nitrogen of the purification fluidizes mouth, to be passed through nitrogen-sealed.
Compressed nitrogen interface is set at the axle envelope of the rotary valve, to pass through nitrogen-sealed；In the lower material position of the rotary valve
The housing put is equipped with nitrogen and fluidizes mouth, makes to substitute air filling rotor space by nitrogen after rotary valve blanking.
Preferably, the gap between the rotor and housing of the rotary valve is 0.3-0.5mm.
Preferably, the rotary valve connection frequency converter.
Preferably, the strength blast pass conveying device includes being arranged on the flow-rate adjustment dress of air shooter road
It puts, with the variation timely adjustment blast pass amount according to injection amount and injection fluidized bed furnace quantity.
Specifically, the strength blast pass conveying device includes being sequentially arranged the air compression of air shooter road
Machine, air accumulator, pressure reducing valve, main road pneumatic cut-off valve, gas flowmeter, flow control valve and pressure transmitter.
Preferably, conveying drying kiln fluidized bed furnace is two or more, and distributor is set on the mixture transfer pipeline, should
Distributor is set there are one main import and several sub-exports, and the gas-solid mixture of the main import and the online injector sprays
Mixture transfer pipeline between mouthful is responsible for for an injection, connects the one of an injection branch pipe in several sub-exports respectively
End, the other end of each injection branch pipe connect a drying kiln fluidized bed furnace respectively, are set respectively on each injection branch pipe
Branch pneumatic cut-off valve.
A PLC control system is further included, which controls the rotary valve, strength injection transport system and burn
Burn the driving device and valve in equipment.
The utility model also provides a kind of rotary valve, and the gap between the rotor and housing of the rotary valve is less than 0.8mm.
Further, compressed gas interface is set at the axle envelope of the rotary valve, to be sealed by compressed gas；In the rotation
The housing of the lower discharge position of rotary valve is equipped with compressed gas and fluidizes mouth, makes the compressed gas alternate collar by setting after rotary valve blanking
Border air filling rotor space.
Gap between the rotor and housing of the rotary valve is 0.3mm-0.5mm.
The compressed gas can be inert gas, example nitrogen as the aforementioned or other inert gases.
The beneficial effects of the utility model：A kind of obtained grey recycling spray of the closed purification of calcium carbide of the utility model
Incineration system is blown, it is so small between rotor and housing by setting special rotary valve on the discharge port of the grey warehouse of purification
Gap has lock airway dysfunction, along with the grey warehouse setting nitrogen of purification fluidizes mouth, to be passed through nitrogen-sealed and the rotary valve
Compressed nitrogen interface is set at axle envelope, with by these measures of nitrogen-sealed, this so that the operation for purifying grey recycling is non-
Chang Anquan effectively prevents the damage of staff and equipment.It, can by setting volume control device on air shooter road
The air flow rate and pressure of conveying injection purification ash are adjusted flexibly with the number according to burning facility and the situation of capacity of incinerator, makes
Ratio must be burned more thoroughly.Incineration system provided by the utility model carries out recycling to purification ash, avoids purification ash to ring
The pollution in border has larger environmental protection effect, can both obtain economic benefit, also achieve larger social benefit.
The utility model is described in detail below by drawings and examples.
Description of the drawings
Fig. 1 is that the grey recycling of the closed purification of calcium carbide that utility model improves is blown the structure diagram of incineration system.
Fig. 2 is the structure diagram of the rotary valve in Fig. 1.
Wherein：
1st, grey warehouse is purified, 2, air accumulator, 3, pressure reducing valve, 4, main road pneumatic cut-off valve, 5, gas flowmeter, 6, flow tune
Save valve, 7, pressure transmitter, 8 rotary valves, 81, axle envelope blow clearly interface tube, 82, nitrogen fluidisation mouth, H, gap, 9, online injection
Device, 10, distributor, 11, branch pneumatic cut-off valve, 12, drying kiln fluidized bed furnace, 20, gate valve.
Specific embodiment
Referring initially to shown in Fig. 1, for the preferred embodiment of the utility model, concrete structure and embodiment are as follows：
As shown in Figure 1, a kind of grey recycling injection incineration system of the closed purification of calcium carbide, grey warehouse 1 is purified including one,
Rotary valve 8, strength injection transport system and burning facility are further included, it is storage device to purify grey warehouse 1, for storing recycling again
The purification ash utilized；By the purification ash of purified treatment generally using Geldart-D particle to grey warehouse 1 is purified, in order to avoid purification ash
Spontaneous combustion is contacted with air, purifying grey warehouse needs to be sealed with nitrogen fluidisation.The grey warehouse 1 of purification is generally atmospheric pressure device.For
It realizes the continuous injection of purification ash, purifies the purification ash that sufficient amount is generally preserved in grey warehouse 1.
The grey transfer pipeline of bottom deslagging mouth connection purification of the grey warehouse 1 of purification.Strength injection transport system includes online spray
Emitter 9 and strength blast pass conveying device, the outlet at bottom of purification ash from the grey warehouse of purification come out, and pass through online injector 9
Burning facility is mixed into compressed air to be burned.
There are three interfaces for tool on online injector 9：Solid material import, gas feed and gas-solid mixture ejiction opening, Gu
Body material inlet is connect by purifying the grey warehouse of grey conveyance conduit and purification, and gas feed is empty with compression by gas transfer pipeline
The air source of gas, that is, air compressor connection, gas-solid mixture ejiction opening are connect by mixture transfer pipeline with burning facility.It is logical
Online injector 9 is crossed to be burned with certain pressure and speed penetrating burning facility by compressed air.
In order to prevent compressed air enter the grey warehouse 1 of purification and the dangerous situations such as occur burning, in the grey conveyance conduit of purification
The special rotary valve 8 of upper setting, rotary valve 8 is improved in the structure of existing rotary valve, e.g. by the star of transformation
Type unloading valve, main transformation point is the gap H reduced between rotor and housing, and the general gap is less than 0.8mm, such as Fig. 2
Shown, the gap H between 8 rotor of rotary valve and housing is preferably 0.3 to 0.5mm.
In order to further prevent the entrance of air, 8 axle envelope of rotary valve air blowing interface tube 81 clearly connect with nitrogen making machine, is rotating
The lower sides of valve 8 are equipped with nitrogen and fluidize mouth 82, and nitrogen fluidisation mouth 82 is connect with nitrogen making machine.The setting nitrogen processed on the grey warehouse of purification
Machine, the nitrogen making machine connecting line also input nitrogen into the grey warehouse of purification.A nitrogen is drawn in the upper portion side wall of the grey warehouse of purification
The axle envelope interface 81 of letter shoot road connection rotary valve 8 and nitrogen fluidisation mouth 82.
Rotary valve 8 is connect with the ash hole of the grey warehouse 1 of purification by purifying grey transfer pipeline, in rotary valve 8 and purification ash
Gate valve 20 is also installed on purification ash transfer pipeline between the ash hole of warehouse 1.
Improved rotary valve 8 is the core of the grey recycling injection incineration system of the closed purification of the utility model calcium carbide
Equipment, the gap between the rotor and housing of rotary valve 8 become smaller, and can play the role of locking gas, in case the compressed air of injection enters
The grey warehouse 1 of purification causes the grey spontaneous combustion of purification；Simultaneously in order to prevent compressed air from entering the grey warehouse 1 of purification to greatest extent, revolving
The blanking Position Design nitrogen fluidisation mouth 82 of rotary valve 8 makes to substitute air filling rotor space by nitrogen after 8 blanking of rotary valve, this
Sample completely avoids blowing pressurized air and enters the grey warehouse 1 of purification.
Strength injection conveyor is that purification ash is conveyed by online injector 9 in injection to burning facility by strength
Power；In the present embodiment, strength injection conveyor includes the air compressor being connected in turn in gas transfer pipeline
（Do not show in figure）, air accumulator 2, pressure reducing valve 3, main road pneumatic cut-off valve 4, gas flowmeter 5, flow control valve 6 and pressure inverting
Device 7.
The utility model uses air compressor, and passes through flow control valve 6 according to gas flowmeter 5 and pressure converter
7 flows detected and pressure can adjust tolerance and air pressure at any time, and setting air accumulator 2 is the energy storage of gas to be needed to set as injection
It is standby, it fluctuates and can be adjusted by air accumulator 2 caused by the air source of strength injection conveyor during the injection, ensure entire
Injection process will not break down because of the influence of extraneous air source or other equipment.
The gas-solid mixture ejiction opening connection mixture transfer pipeline of online injector 9.In embodiment as shown in Figure 1
In, burning facility is multiple drying kiln fluidized bed furnaces 12, is connect by a distributor 10 with mixture transfer pipeline.Distributor 10
If there are one main import and several sub-exports, the mixing between the main import and the gas-solid mixture ejiction opening of online injector 9
Object transfer pipeline is responsible for for an injection, connects one end of an injection branch pipe in several sub-exports on distributor 10 respectively,
The other end of each injection branch pipe connects a drying kiln fluidized bed furnace 12 respectively.Branch is set respectively on each injection branch pipe
Pneumatic cut-off valve 11.
Online injector 9 is the equipment that blowing gas and purification ash is allowed to carry out mixing acceleration, can exempt from injection supervisor and spray
Branch pipe is blown to block.
Burning facility is at least one drying kiln fluidized bed furnace 12.Purifying ash can only be blown to a drying kiln fluidized bed furnace.
Preferably, at most platform drying kiln fluidized bed furnace can be blown simultaneously, most 5.Distributor 10 is used to implement to multiple drying kilns
The equipment that fluidized bed furnace conveys blowing purification ash simultaneously.Since the distance of distributor to each drying kiln fluidized bed furnace is different, to more
If resistance of ducting difference is blown uneven it will cause each conveying injection branch pipe when a drying kiln fluidized bed furnace is blown simultaneously, non-
Often it be easy to cause line clogging.It can uniformly be carried out purifying grey injection to single or multiple fluidized bed furnaces by this equipment.Such as
When fruit only has a drying kiln fluidized bed furnace, there is no need to set distributor.
In practical operation, have such as toward different drying kiln fluidized bed furnace blowing purifications ash, with different injection amounts and not
With a variety of situations such as injection fluidized bed furnace quantity, adjusted by the strength blast pass conveying device including flow regulator
Flow is blown, i.e., will not cause plugging because of tolerance is too small, and pipeline, elbow abrasion and the energy will not be caused since tolerance is excessive
Waste, that is to say, that can reach and meet production needs, and energy-saving and environment-friendly purpose.
It is automatically controlled to realize, the utility model is controlled by a set of PLC control system and connected.
Pressure reducing valve 3 is air source decompressor, bleed pressure to be decompressed to the pressure of injection needs.Pneumatic switching valve 4
For the flow shut-off equipment of Gas injection, gas flowmeter 5 and pressure transmitter 7 are blowing gas parameter monitor devices, according to
The data come are detected, by PLC control system, flow regulator and relevant valve etc. are adjusted.
Rotary valve 8 connects frequency converter, and frequency converter is mounted on a MCC（Motor Control Center）In cabinet, speed adjusting is carried out, with
Adapt to the variation of the different injection amount of single fluidized bed furnace and injection to injection amount caused by the variation of the quantity of fluidized bed furnace.
Conveying injection supervisor and conveying injection branch pipe generally use seamless steel pipe.
The course of work of the grey recycling injection incineration system of the closed purification of calcium carbide of the utility model is as follows：
1. pressure reducing valve 3 is configured to the jetting pressure needed；
2. operator selectes the drying kiln fluidized bed furnace 12 for needing to be blown, setting needs the injection amount being blown, then starts PLC
Control system；
3. control system opens the branch pneumatic cut-off valve door 11 on corresponding conveying injection branch pipe；
4. the main road pneumatic cut-off valve 4 of air shooter road is opened, flow control valve 6 becomes according to flowmeter 5 and pressure
The feedback of device 7 and how much automatic adjustment tolerance of selected drying kiln fluidized bed furnace is sent to start pipeline sweeping；
5. after one setting delay of purging, start rotary blowing valve 8, purification ash under the action of rotary blowing valve 8 by
Line injector 9 enters injection supervisor after accelerating, the conveying that each needs are then entered by the distribution of distributor 10 is blown in branch pipe,
Purification ash is sprayed under the action of blowing gas in drying kiln fluidized bed furnace；
6. simultaneously, control system constantly corrects rotary blowing according to the weight change of the grey storage bin 1 of purification by frequency converter
The rotating speed of valve makes practical injection amount be infinitely close to the injection amount of operator's setting；
7. operator can close or open at any time the stop valve 11 on some injection branch pipe, to realize to this injection branch
Pipe corresponds to the injection of fluidized bed furnace or stops injection, the injection that control system is needed by the automatic adjustment of flow control valve 6 at this time
Flow, to adapt to new injection operating mode；
8：If operator has issued injection halt instruction, rotary blowing valve 8 stops at this time, and it is clear then to carry out injection pipeline
It blows, if interim stop, main road pneumatic cut-off valve 4 will be opened persistently, while flow control valve 6 adjusts tolerance to cool down boiling
Injection tube in stove, in order to avoid since fluidized bed furnace high temperature is burnt out, operator can be again started up revolving as needed at any time after interim stopping
Turn blowing valve 8.If whole system is needed to stop, main road pneumatic cut-off valve 4 will be in the purging that certain time is carried out to pipeline
After close, entire injection system stops.
The utility model is operated by a set of PLC control system, and operation is accurate, and safety coefficient is high, and burning is compared
Thoroughly, to purification ash carry out recycling have larger environmental protection, economic and social benefit, effectively prevent staff and
The generation of damage and the environmental pollution of equipment.
The PLC control system and be all the prior art with the connection of respective element in this system, so it is no longer superfluous herein
It states.
Claims (8)
1. a kind of grey recycling injection incineration system of the closed purification of calcium carbide, it is characterised in that：Including the grey warehouse of a purification, go back
Transport system and burning facility are blown including rotary valve, strength,
Grey transfer pipeline one end of outlet connection purification of the grey warehouse lower part of purification,
Strength injection transport system includes online injector and strength blast pass conveying device,
The online injector includes solid material import, gas feed and gas-solid mixture ejiction opening, which connects
The other end of the purification ash transfer pipeline is connect, which connects one end of gas transfer pipeline, which sprays
One end of mouth connection mixture transfer pipeline；
The strength blast pass conveying device be arranged on the air shooter road, with control and regulation blowing gas pressure and
Flow；
The burning facility includes at least one drying kiln fluidized bed furnace, is connected to the other end of the mixture transfer pipeline；
The rotary valve is connected on the purification ash transfer pipeline, which includes rotor and housing, sets on the housing
Inlet port and outlet port, the rotor for being connected with driving device are arranged in the housing between inlet port and outlet port, should
Gap between rotor and the housing is less than 0.8mm.
2. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 1, it is characterised in that：It is described
The grey warehouse setting nitrogen of purification fluidizes mouth, to be passed through nitrogen-sealed.
3. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 1 or 2, it is characterised in that：
Compressed nitrogen interface is set at the axle envelope of the rotary valve, to pass through nitrogen-sealed；And/or
Nitrogen is equipped on the housing of the lower discharge position of the rotary valve and fluidizes mouth, is filled out after making rotary valve blanking by nitrogen replacement air
Fill rotor space.
4. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 3, it is characterised in that：It is described
Nitrogen making machine is connected on nitrogen fluidisation mouth on the grey warehouse of purification, to provide sealing compressed nitrogen to the purification ash warehouse；It is described
One end of compressed nitrogen interface setting nitrogen tube on rotary valve, the other end of the nitrogen tube are connect with the nitrogen making machine.
5. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 1, it is characterised in that：It is described
Gap between the rotor and housing of rotary valve is 0.3-0.5mm；And/or the rotary valve connection frequency converter.
6. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 1, it is characterised in that：It is described
Strength blast pass conveying device includes being arranged on the flow regulator of air shooter road, with according to injection amount and injection
The variation timely adjustment blast pass amount of fluidized bed furnace quantity.
7. the grey recycling injection incineration system of the closed purification of calcium carbide according to claim 6, it is characterised in that：It is described
Strength blast pass conveying device includes being sequentially arranged the air compressor of air shooter road, air accumulator, pressure reducing valve, master
Road pneumatic cut-off valve, gas flowmeter, flow control valve and pressure transmitter.
8. the grey recycling injection incineration system of the closed purification of calcium carbide according to claims 1 or 2 or 6, feature exist
In：Drying kiln fluidized bed furnace is conveyed as two or more, distributor is set on the mixture transfer pipeline, which is equipped with one
Mixing between the gas-solid mixture ejiction opening of a main import and several sub-exports, the main import and the online injector
Object transfer pipeline is responsible for for an injection, connects one end of an injection branch pipe, each injection in several sub-exports respectively
The other end of branch pipe connects a drying kiln fluidized bed furnace respectively, branch is set pneumatically to cut off respectively on each injection branch pipe
Valve；And/or a PLC control system is further included, which controls the rotary valve, strength injection transport system and burns
Burn the driving device and valve in equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721227132.3U CN207514929U (en) | 2017-09-21 | 2017-09-21 | A kind of grey recycling injection incineration system of the closed purification of calcium carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721227132.3U CN207514929U (en) | 2017-09-21 | 2017-09-21 | A kind of grey recycling injection incineration system of the closed purification of calcium carbide |
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| Publication Number | Publication Date |
|---|---|
| CN207514929U true CN207514929U (en) | 2018-06-19 |
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ID=62533759
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721227132.3U Expired - Fee Related CN207514929U (en) | 2017-09-21 | 2017-09-21 | A kind of grey recycling injection incineration system of the closed purification of calcium carbide |
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| CN (1) | CN207514929U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282293A (en) * | 2018-09-26 | 2019-01-29 | 亿利洁能股份有限公司达拉特分公司 | A kind of furnace of calcium carbide purification ash conveying incineration system |
| CN109556415A (en) * | 2018-11-15 | 2019-04-02 | 安徽华塑股份有限公司 | It is a kind of to utilize cement kiln synergic processing furnace of calcium carbide purification apparatus for ash and technique |
| CN114251662A (en) * | 2021-12-23 | 2022-03-29 | 河南省德耀节能科技股份有限公司 | Purification ash incineration recycling system |
| CN114307413A (en) * | 2021-11-19 | 2022-04-12 | 宁夏金昱元炔烃节能有限公司 | Calcium carbide purification and dedusting ash treatment system and method |
-
2017
- 2017-09-21 CN CN201721227132.3U patent/CN207514929U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282293A (en) * | 2018-09-26 | 2019-01-29 | 亿利洁能股份有限公司达拉特分公司 | A kind of furnace of calcium carbide purification ash conveying incineration system |
| CN109556415A (en) * | 2018-11-15 | 2019-04-02 | 安徽华塑股份有限公司 | It is a kind of to utilize cement kiln synergic processing furnace of calcium carbide purification apparatus for ash and technique |
| CN114307413A (en) * | 2021-11-19 | 2022-04-12 | 宁夏金昱元炔烃节能有限公司 | Calcium carbide purification and dedusting ash treatment system and method |
| CN114251662A (en) * | 2021-12-23 | 2022-03-29 | 河南省德耀节能科技股份有限公司 | Purification ash incineration recycling system |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180619 Termination date: 20200921 |