CN106178801A - A kind of desulfurizer for little Miniature coal-fired boiler and application thereof - Google Patents

A kind of desulfurizer for little Miniature coal-fired boiler and application thereof Download PDF

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Publication number
CN106178801A
CN106178801A CN201610850891.9A CN201610850891A CN106178801A CN 106178801 A CN106178801 A CN 106178801A CN 201610850891 A CN201610850891 A CN 201610850891A CN 106178801 A CN106178801 A CN 106178801A
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CN
China
Prior art keywords
tank body
fired boiler
desulfurizer
coal
little miniature
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Pending
Application number
CN201610850891.9A
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Chinese (zh)
Inventor
张代功
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张代功
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Priority to CN201610850891.9A priority Critical patent/CN106178801A/en
Publication of CN106178801A publication Critical patent/CN106178801A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/60Simultaneously removing sulfur oxides and nitrogen oxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

Abstract

The present invention relates to a kind of desulfurizer for little Miniature coal-fired boiler and application thereof, including tank body and doctor solution reserve pool, the top of described tank body connects upper pipeline, bottom connects lower pipeline, the side of tank body connects admission line, single filter net, cascade filtration net, three-stage filtration net and spray ring from bottom to top it is provided with in tank body, spray ring is connected with tank body lower part by external pipe, and tank body is provided with an inlet, and inlet is connected with doctor solution reserve pool by pipeline.Present invention is specifically directed to little Miniature coal-fired boiler design, solve the pollution problem of traditional little Miniature coal-fired boiler, can effectively remove the sulfide in little Miniature coal-fired boiler smoke, impurity etc., inventive desulfurization apparatus structure design simultaneously is simple, easy to install, simultaneously facilitates cleaning and safeguards, floor space is little, cost of investment is low, and income effect is obvious, is worthy of popularization.

Description

A kind of desulfurizer for little Miniature coal-fired boiler and application thereof
Technical field
The present invention relates to a kind of desulfurizer for little Miniature coal-fired boiler and application thereof, belong to energy-conserving and environment-protective technology neck Territory.
Background technology
Coal-burning boiler be exactly fuel be the boiler of coal, refer to through fire coal combustion heat release amount in burner hearth, heating agent Water or other organic heat carrier (such as conduction oil etc.) are heated to the thermal powerplant of uniform temperature (or pressure).Boiler operation Cheng Zhong, substantial amounts of coal is burned, and a large amount of flue gases after burning can be discharged, owing to the flue gas after fire coal containing sulfide, Substantial amounts of fume emission is in air, and these sulfide will result in environmental pollution.
In order to reduce atmospheric pollution, industrial coal-burning boiler has a strict industrial discharge standard, industrial generally adopts Make a return journey the sulfide in smoke abatement gas with dry desulfurization or wet desulphurization, the most ripe on technology and equipment.But, some are little micro- Type coal-burning boiler does not the most but have corresponding desulfurization link, heating boiler, street or the rural area bath in such as unit Hall coal-burning boiler, the pollution that air is caused by these little Miniature coal-fired boilers can not despise, and meeting for years is to big compression ring Immeasurable destruction is caused in border.Being additionally, since the continuous reinforcement of environmental consciousness and environmental protection policy, industry coal-boiler has obtained Control to corresponding, be these unheeded little Miniature coal-fired boilers main sources of becoming environmental pollution on the contrary.
Therefore, need badly and solve the desulphurization problem of little Miniature coal-fired boiler, it is to avoid cause too much atmospheric pollution.
Summary of the invention
For the deficiencies in the prior art, the present invention provides a kind of desulphurization and denitration for little Miniature coal-fired boiler, dedusting dress Putting, this apparatus structure is simple, install easy, low cost, is particularly suitable for little Miniature coal-fired boiler.
The present invention also provides for the using method of above-mentioned a kind of desulfurizer for little Miniature coal-fired boiler.
Technical scheme is as follows:
A kind of desulfurizer for little Miniature coal-fired boiler, including tank body and doctor solution reserve pool, the top of described tank body Portion connects upper pipeline, bottom connects lower pipeline, and the side of tank body connects admission line, is from bottom to top provided with drainage screen in tank body And spray ring, spray ring connect with tank body lower part by external pipe, and tank body is provided with an inlet, inlet pass through pipeline and Doctor solution reserve pool connects.
Preferably, described drainage screen includes single filter net from bottom to up, cascade filtration net and three-stage filtration net.
Preferably, described tank body is provided with water-level observation meter.This design is advantageous in that, water-level observation meter is used for observing The liquid level of doctor solution is injected in tank body.
Preferably, being provided with dedusting cylinder in described tank body, described dedusting cylinder connects with admission line.It is good that this designs Place is, the flue gas entering admission line can effectively remove some large granular impurities in flue gas by dedusting cylinder, purifies Flue gas.
Preferably, being provided with Intranet cylinder in described dedusting cylinder, Intranet cylinder one end is connected with dedusting cylinder.It is good that this designs Place is, by inside and outside Intranet cylinder and dedusting cylinder with the use of, degree of purification can be improved.
Preferably, the aperture that described single filter net, cascade filtration net, three-stage filtration are online is sequentially reduced.This design Advantage is, by the setting of three layer filtration net, can effectively stop the impurity of different-grain diameter in flue gas, it is to avoid it enters air In.
Preferably, the top of described tank body is connected with upper pipeline by speed governing air-introduced machine.The advantage of this design is, speed governing The air of tank body can be discharged by air-introduced machine, forms, in making tank body, the mistake that subnormal ambient, beneficially flue gas pass through from doctor solution Journey reaches the purpose of desulfurization.
Preferably, uniform on described spray ring it is provided with nozzle.
Further, described nozzle selects Venturi nozzle.
Preferably, the external pipe that described spray ring connects with tank body lower part is provided with water circulating pump.
Preferably, being provided with spiral heat exchange tube in described tank body, the two ends of spiral heat exchange tube are stretched out outside tank body, spiral heat exchange One end of pipe be water inlet, the other end be outlet.
Preferably, described tank body includes upper and lower two parts, the detachable connection of upper and lower two parts.Getting well of this design is in In, the detachable connection of upper and lower two parts, it is simple to the transport of tank body, install and clean.
Further, described two parts up and down are connected by ring flange and leakproof water cushion.
The using method of a kind of desulfurizer for little Miniature coal-fired boiler, comprises the following steps,
(1) bottom of tank body stores doctor solution in advance, and the liquid level of doctor solution is below basket strainer;Then by desulfurizer Admission line couples together with the chimney of coal-burning boiler;
(2) during coal-burning boiler work, opening spray ring and speed governing air-introduced machine, doctor solution is pumped by ON cycle water pump simultaneously To spray ring, by nozzle to tank body central-injection;
(3) flue gas in tank body is extracted out by speed governing air-introduced machine, gradually forms negative pressure, when negative pressure reaches certain numerical value, de- Doctor solution in tank body is supplemented in being sucked into tank body by the doctor solution in sulfur liquid reserve pool;
(4) water circulating pump non-stop run, forms lasting cascade in making tank body and flue gas is carried out lasting desulfurization, after desulfurization Flue gas discharged by speed governing air-introduced machine;Heat in tank body is swapped by spiral heat exchange tube, plays cooling tank body temperature Effect.
The beneficial effects of the present invention is:
1, inventive desulfurization device, is specifically designed for little Miniature coal-fired boiler design, solves traditional little Miniature coal-fired boiler Pollution problem, it is possible to effectively remove the sulfide in little Miniature coal-fired boiler smoke, impurity etc., play the mesh of energy-conserving and environment-protective , meet the environmental protection concept of energy-saving and emission-reduction.
2, inventive desulfurization device, on concrete structure designs, uses the outside aerofluxus of speed governing air-introduced machine, instead of traditional Chimney stack is bled discharge.When being applied on little Miniature coal-fired boiler, it is simple to install, decrease because of strong wind, thunder and lightning etc. simultaneously Extreme weather causes chimney stack to topple over, hurts sb.'s feelings, hinders the heavy losses such as thing.
3, inventive desulfurization device is main in the face of little Miniature coal-fired boiler, especially has heating boiler, bath boiler definitely Advantage, had both met the national environmental protection policy putting into effect qualified discharge, had saved energy resource consumption for user again, reached the most double effect obtained Really.
4, the design of inventive desulfurization apparatus structure is simple, easy to install, simultaneously facilitates cleaning and safeguards, floor space Little, cost of investment is low, and income effect is obvious, is worthy of popularization.
Accompanying drawing explanation
Fig. 1 is the structural representation of inventive desulfurization device;
Fig. 2 is the structural representation of spray ring in the present invention;
Fig. 3 is the structural representation that inventive desulfurization device increases spiral heat exchange tube;
Wherein: 1, upper pipeline;2, speed governing air-introduced machine;3, spray ring;4, three-stage filtration net;5, cascade filtration net;6, feed liquor Pipe;7, single filter net;8, ring flange;9, water circulating pump;10, globe valve;11, blowoff valve;12, lower pipeline;13, Intranet cylinder; 14, admission line;15, coal-burning boiler;16, flange;17, pipeline;18, tank body;19, doctor solution reserve pool;20, dedusting cylinder; 21, nozzle;22, outlet;23, water inlet;24, switching valve;25, threeway discharging valve.
Detailed description of the invention
Below by embodiment and combine accompanying drawing the present invention will be further described, but it is not limited to this.
Embodiment 1:
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of desulfurizer for little Miniature coal-fired boiler, including tank body 18 and doctor solution reserve pool 19, the top of tank body 18 connects upper pipeline 1, bottom connects lower pipeline 12, and the side of tank body 18 connects Admission line 14, is from bottom to top provided with single filter net 7, cascade filtration net 5, three-stage filtration net 4 and spray ring in tank body 18 3, spray ring 3 connect with tank body lower part by external pipe, and tank body 18 is provided with an inlet, inlet pass through feed tube 6 and Doctor solution reserve pool 19 connects, and feed tube 6 is provided with globe valve 10.
Wherein, the main part of tank body 18 is cylinder, and bottom is inverted cone, and tank body selects corrosion resistant steel system Making, thickness of steel product is at more than 0.5cm.Being additionally provided with water-level observation meter on tank body, water-level observation meter injects in being used for observing tank body The liquid level of doctor solution.
Being provided with dedusting cylinder 20 in tank body, the aperture of dedusting cylinder is 10cm, and dedusting cylinder 20 is with admission line 14 even Logical.Being provided with Intranet cylinder 13 in dedusting cylinder 20, the aperture of Intranet cylinder 13 is 10cm.By Intranet cylinder 13 and dedusting cylinder 20 Inside and outside with the use of, degree of purification can be improved.The flue gas entering admission line can effectively be gone by dedusting cylinder, Intranet cylinder Some large granular impurities in smoke abatement gas, purifying smoke.
The steel plate of more than etch-proof 0.3cm thickness all selected by single filter net 7, cascade filtration net 5, three-stage filtration net 4 Being made, the aperture of single filter net is 8mm, and the aperture of cascade filtration net is 6mm, and the aperture of three-stage filtration net is 5mm.Logical Cross the setting of three layer filtration net, can effectively stop the impurity of different-grain diameter in flue gas, it is to avoid it enters in air.
The top of tank body is connected with upper pipeline 1 by speed governing air-introduced machine 2.Speed governing air-introduced machine can be by outside for the air of tank body Discharging, form subnormal ambient, utilize desulfurization and the purification of flue gas in making tank body, speed governing air-introduced machine can select different merit according to demand The motor of rate size.
The uniform nozzle 21 that is provided with on spray ring 3, nozzle selects Venturi nozzle, Venturi nozzle injection great efforts, energy Enough one waters surface of formation in tank body circumference, can carry out the desulfurization without dead angle to flue gas.
Being provided with water circulating pump 9 with tank body lower part on the external pipe that spray ring 3 connects, water circulating pump 9 is sustainably Spray ring provides doctor solution, it is simple to spray ring forms the stable water surface.
Embodiment 2:
A kind of desulfurizer for little Miniature coal-fired boiler, as described in Example 1, its difference is structure: tank The internal spiral heat exchange tube that is provided with, a diameter of 4cm of spiral heat exchange tube, the two ends of spiral heat exchange tube are stretched out outside tank body, and spiral changes One end of heat pipe be water inlet 23, the other end be outlet 22.Can be with water flowing, coolant etc. in spiral heat exchange tube, it is possible to tank Internal carry out heat exchange and play the effect of cooling in tank body, simultaneously can be again with from outlet hot water out, effectively Save resource.
Spiral heat exchange tube and and feed tube 6 between be provided with switching valve 24, need to be reached by during blowdown the water of water inlet In inflow tank body, tank body can be rinsed.
Threeway discharging valve 25 it is additionally provided with, by opening threeway discharging valve 25, Ke Yipai on the water inlet pipe of spiral heat exchange tube Water in clean spiral heat exchange tube, in order to avoid frozen pipe during supercool stoppage in transit in winter.
Embodiment 3:
A kind of desulfurizer for little Miniature coal-fired boiler, as described in Example 1, its difference is structure: tank Body 18 includes upper and lower two parts, the detachable connection of upper and lower two parts.Specifically, upper and lower two parts pass through ring flange 16, leakproof Water cushion connects, it is simple to the transport of tank body, installs and cleans.
Lower pipeline sets blowoff valve 11 is installed, when interim blowing out or pressure stove, blowoff valve 11 can be opened by tank body Discarded doctor solution discharge.
Embodiment 4:
A kind of using method of the desulfurizer for little Miniature coal-fired boiler, specific operation process is as follows:
(1) bottom of tank body 18 stores doctor solution in advance, and the liquid level of doctor solution is below basket strainer and higher than water circulating pump Entrance more than;Then the chimney of the admission line 14 of desulfurizer with coal-burning boiler 15 is got up by Flange joint, flange Connect and be easily installed dismounting;
(2) start coal-burning boiler 15, after coal-burning boiler work is started working, open spray ring 3 and speed governing air-introduced machine 2, with Time ON cycle water pump 9 doctor solution is pumped to spray ring 3, by spray ring 3 one circle Venturi nozzle to tank body center Injection, the doctor solution directive tank body center of injection, form a circular liquid level;The flue gas of discharged from coal-fired boiler passes through admission line Entering dedusting cylinder 20, Intranet cylinder 13, stopped by large granular impurity by dedusting cylinder 20, Intranet cylinder 13, flue gas is gradually Contact with the circular liquid level sprayed upwardly through after single filter net 7, cascade filtration net 5, three-stage filtration net 4, complete wet method and take off Sulfur process;
(3) after the process of step (2), the flue gas in tank body is extracted out by speed governing air-introduced machine 2, and gradually forms at tank body Negative pressure, (can set) according to the actual requirements when negative pressure reaches certain numerical value, opens globe valve 10, in doctor solution reserve pool 19 Doctor solution be sucked into tank body 18 in the doctor solution in tank body is supplemented;
(4) in coal-burning boiler 15 operation process, water circulating pump 9 non-stop run, form lasting water in making tank body 18 Curtain carries out lasting desulfurization to flue gas, and the flue gas after desulfurization is discharged by speed governing air-introduced machine 2;The temperature simultaneously because coal-burning boiler 15 is discharged fume Degree height, the spiral heat exchange tube arranged in tank body 18, the high-temperature flue gas that doctor solution can be absorbed is by the former water in spiral heat exchange tube Double absorption utilizes, and can play the effect of cooling tank body temperature, reaches energy-conservation effect.

Claims (10)

1. the desulfurizer for little Miniature coal-fired boiler, it is characterised in that include tank body and doctor solution reserve pool, described The top of tank body connects upper pipeline, bottom connects lower pipeline, and the side of tank body connects admission line, from bottom to top arranges in tank body Having drainage screen and spray ring, spray ring is connected with tank body lower part by external pipe, and tank body is provided with an inlet, and inlet leads to Piping is connected with doctor solution reserve pool.
2. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that described drainage screen includes Single filter net, cascade filtration net and three-stage filtration net from bottom to up.
3. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that arrange on described tank body There is water-level observation meter.
4. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 2, it is characterised in that arrange in described tank body Dedusting cylinder, described dedusting cylinder is had to connect with admission line.
5. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 4, it is characterised in that in described dedusting cylinder Being provided with Intranet cylinder, Intranet cylinder one end is connected with dedusting cylinder;
The online aperture of described single filter net, cascade filtration net, three-stage filtration is sequentially reduced.
6. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that the top of described tank body It is connected with upper pipeline by speed governing air-introduced machine.
7. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that on described spray ring all Cloth is provided with nozzle, and described nozzle selects Venturi nozzle.
8. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that described spray ring and tank It is provided with water circulating pump on the external pipe of body bottom connection;
Being provided with spiral heat exchange tube in described tank body, the two ends of spiral heat exchange tube are stretched out outside tank body, and one end of spiral heat exchange tube is Water inlet, the other end are outlet.
9. the desulfurizer for little Miniature coal-fired boiler as claimed in claim 1, it is characterised in that described tank body includes Lower two parts, the detachable connection of upper and lower two parts;
Described two parts up and down are connected by ring flange and leakproof water cushion.
10. a using method for the desulfurizer for little Miniature coal-fired boiler as described in any one of claim 1-9, bag Include following steps,
(1) bottom of tank body stores doctor solution in advance, and the liquid level of doctor solution is below basket strainer;Then by the air inlet of desulfurizer Pipeline couples together with the chimney of coal-burning boiler;
(2) during coal-burning boiler work, opening spray ring and speed governing air-introduced machine, doctor solution is pumped to spray by ON cycle water pump simultaneously Drench circle, by nozzle to tank body central-injection;
(3) flue gas in tank body is extracted out by speed governing air-introduced machine, gradually forms negative pressure, when negative pressure reaches certain numerical value, and doctor solution Doctor solution in tank body is supplemented in being sucked into tank body by the doctor solution in reserve pool;
(4) water circulating pump non-stop run, forms lasting cascade in making tank body and flue gas is carried out lasting desulfurization, the cigarette after desulfurization Gas is discharged by speed governing air-introduced machine;Heat in tank body is swapped by spiral heat exchange tube, plays the work of cooling tank body temperature With.
CN201610850891.9A 2016-09-26 2016-09-26 A kind of desulfurizer for little Miniature coal-fired boiler and application thereof Pending CN106178801A (en)

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CN201610850891.9A CN106178801A (en) 2016-09-26 2016-09-26 A kind of desulfurizer for little Miniature coal-fired boiler and application thereof

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Application Number Priority Date Filing Date Title
CN201610850891.9A CN106178801A (en) 2016-09-26 2016-09-26 A kind of desulfurizer for little Miniature coal-fired boiler and application thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112370909A (en) * 2020-09-30 2021-02-19 山东岱荣节能环保科技有限公司 Dust removal device for flue gas waste heat utilization

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004486A (en) * 1990-07-02 1991-04-02 Chen Chun Teh Submerged-type gas cleaning system
CN2322048Y (en) * 1997-03-14 1999-06-02 大连科达环保设备厂 Dust-removing desulfurizer
CN2805893Y (en) * 2005-06-28 2006-08-16 付保国 Desulfurizing dust remover
CN201572577U (en) * 2009-10-28 2010-09-08 中国石化集团胜利石油管理局黄河钻井总公司固井公司 Evacuation filter device of bulk cement tank car
CN206045704U (en) * 2016-09-26 2017-03-29 张代功 A kind of desulfurizer for little Miniature coal-fired boiler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004486A (en) * 1990-07-02 1991-04-02 Chen Chun Teh Submerged-type gas cleaning system
CN2322048Y (en) * 1997-03-14 1999-06-02 大连科达环保设备厂 Dust-removing desulfurizer
CN2805893Y (en) * 2005-06-28 2006-08-16 付保国 Desulfurizing dust remover
CN201572577U (en) * 2009-10-28 2010-09-08 中国石化集团胜利石油管理局黄河钻井总公司固井公司 Evacuation filter device of bulk cement tank car
CN206045704U (en) * 2016-09-26 2017-03-29 张代功 A kind of desulfurizer for little Miniature coal-fired boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112370909A (en) * 2020-09-30 2021-02-19 山东岱荣节能环保科技有限公司 Dust removal device for flue gas waste heat utilization
CN112370909B (en) * 2020-09-30 2022-02-18 山东岱荣节能环保科技有限公司 Dust removal device for flue gas waste heat utilization

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