CN203657521U - Kiln tail gas energy-saving emission-reduction treatment device - Google Patents

Kiln tail gas energy-saving emission-reduction treatment device Download PDF

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Publication number
CN203657521U
CN203657521U CN201420032325.3U CN201420032325U CN203657521U CN 203657521 U CN203657521 U CN 203657521U CN 201420032325 U CN201420032325 U CN 201420032325U CN 203657521 U CN203657521 U CN 203657521U
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reduction treatment
heat room
emission
saving
tail gas
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CN201420032325.3U
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孔庆英
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

The utility model discloses a kiln tail gas energy-saving emission-reduction treatment device which comprises a heat exchange chamber and a smoke channel communicated with the inside of the heat exchange chamber. Combustion air and hot smoke are subjected to heat exchange in the heat exchange chamber, and the smoke subjected to heat exchange enters the smoke channel to be subjected to smoke sedimentation. During work, cold air and the hot smoke are subjected to heat exchange in a convective mode in the heat exchange chamber, heat conduction efficiency is high, temperature of the combustion air entering a kiln can be increased, and the temperature of the discharged hot smoke is reduced. When the smoke subjected to the heat exchange enters the smoke channel, proceeding is slowed down, and the smoke can be fully settled. Practice shows that the temperature of the combustion air subjected to the heat exchange can be increased to 120-150 DEG C, 70% of smoke can be reduced after the sedimentation process is conducted, and an energy-saving emission-reduction effect is remarkable and complies with an environment-friendly requirement.

Description

A kind of kiln tail gas energy-saving and emission-reduction treatment facility
Technical field
The utility model relates to a kind of kiln tail gas energy-saving and emission-reduction treatment facility.
Background technology
At present, kiln in the course of the work, can produce a large amount of tail gas, and often the temperature of tail gas is also higher, if untreated or only do just discharge outward of simple processing, one causes air pollution, and two heats of taking away are also a kind of huge wastes.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of kiln tail gas energy-saving and emission-reduction treatment facility, and this device energy conservation emission reduction effect is remarkable, meets the requirement of environmental protection.
For achieving the above object, the utility model adopts following technical scheme:
A kind of kiln tail gas energy-saving and emission-reduction treatment facility, comprises Heat Room and exhaust gases passes;
Described Heat Room inside is provided with heat exchanging chamber, the top of heat exchanging chamber is provided with heat exchanger tube array, described heat exchanger tube array is along longitudinal setting of this kiln tail gas energy-saving and emission-reduction treatment facility, the front end of heat exchanger tube array is provided with combustion air entrance, and this combustion air porch is provided with toward interior the first air-introduced machine of carrying air of heat exchanger tube; The tail end of heat exchanger tube array is provided with combustion air outlet, this combustion air outlet and described kiln internal communication; Described Heat Room below one side is provided with smoke inlet, and the front end face of Heat Room below is provided with exhanst gas outlet;
The entrance of described exhaust gases passes connects the exhanst gas outlet of described Heat Room, and the outlet of exhaust gases passes connects the air intake vent of the second air-introduced machine.
Further, the middle part of described exhaust gases passes is provided with the lateral partitions that described exhaust gases passes is divided into upper sheaf space and lower layer space, described upper sheaf space is used for placing material to be dried, this design can make flue gas in process exhaust gases passes, the material that also can be opposite to sheaf space carries out drying and processing, can further improve the utilization rate of waste heat of flue gas.
Further, in described lower layer space, be provided with multiple supporting clapboards that are staggered front to back setting, these supporting clapboards not only can play the effect of the bearing capacity that strengthens lateral partitions, can also reducing smoke in the mobile speed of lower layer space, increase flue gas stroke simultaneously, thereby be more conducive to the abundant sedimentation of flue dust.
Further, described Heat Room and exhaust gases passes are equipped with longitudinal baffle, described Heat Room and exhaust gases passes are divided into respectively left and right two workspaces by this longitudinal baffle, and the flue gas that described smoke inlet is provided with left and right two workspaces that import respectively Heat Room enters pipeline; Two workspaces of Heat Room respectively correspondence arrange a described exhanst gas outlet; Two exhanst gas outlets are communicated with respectively two workspaces of described exhaust gases passes; These two workspaces can be used simultaneously, also can use in turn; While use in turn, cleaning works can be carried out in idle workspace, is conducive to keep the clean of this device.
Further, described flue gas enters between pipeline and Heat Room and is provided with movable valve.
Further, the longitudinal baffle both sides of described Heat Room are respectively equipped with several piece stretches into the baffle plate of described heat exchanging chamber, between the end of every baffle plate and Heat Room two side, leave gap, these baffle plates are arranged on the travel path of flue gas, be conducive to flue gas and form backflow, the heat exchange number of times that increases flue gas and combustion air, is heated evenly the cold air in each heat exchanger tube, thereby further improves fume afterheat utilization rate; And, due to the inhibition of baffle plate, make flue gas elongated in the dead time of Heat Room, thereby be conducive to the sedimentation of flue dust.
Further, in described Heat Room, be also provided with the support for installing described heat exchanger tube array, described support is provided with the support row of arranging several lateral separations, each support row are provided with between several upper and lower spaced accommodating areas, described heat exchanger tube array is arranged in described accommodating area with triplets, this structural design can increase the overall contact area of heat exchanger tube and flue gas, thereby further improves rate of heat exchange, and is conducive to I&M.
Further, described Heat Room top is provided with removable removable cover, thereby facilitates staff to clean and maintenance work.
Further, described removable cover is made up of two sides jack star watt therebetween one deck aluminum silicate insulation material, this jack star watt has more stable corrosion resistance under the environment of high-temperature flue gas, thereby can play the effect of the middle insulation material of protection, can provide this removable cover certain rigidity simultaneously, can resist Heat Room air pressure inside and change the pressure producing, increase the service life of removable cover; Aluminum silicate insulation material plays the effect of insulation.
As mentioned above, the utility model is in the time of work, and cold air and the hot flue gas mode with convection current in Heat Room is carried out heat exchange, can improve the charging temperature of combustion air, reduces the discharge temperature of hot flue gas simultaneously; The flue gas of process heat exchange is in the time passing in exhaust gases passes, and front line speed slows down, and is conducive to the abundant sedimentation of flue dust; Actual showing, the combustion air temperature after heat exchange can be promoted to 120-150 °, can reduce by 70% flue dust through the flue gas of infall process, and its effects of energy saving and emission reduction is remarkable, meets environmental requirement.
Accompanying drawing explanation
Fig. 1 is the side view of a kind of embodiment of the utility model;
Fig. 2 is the top view of a kind of embodiment of the utility model shown in Fig. 1;
Fig. 3 is the rearview of a kind of embodiment of the utility model shown in Fig. 1;
Fig. 4 is the structural representation of removable cover shown in Fig. 3;
Fig. 5 is that A-A shown in Fig. 3 is to cutaway view.
Wherein: 100, Heat Room; 101, heat exchanging chamber; 103, smoke inlet; 1031, flue gas enters pipeline; 104, exhanst gas outlet; 105, longitudinal baffle; 106, baffle plate; 107, support; 1071, support row; 1072, between accommodating area; 108, removable cover; 1081, jack star watt; 1082, aluminum silicate insulation material layer; 109, supporting pillar; 110, heat exchanger tube array; 111, combustion air entrance; 112, combustion air outlet; 200, exhaust gases passes; 201, lateral partitions; 202, supporting clapboard; 203, exhaust outlet; 204, support column; 210, the second air-introduced machine; 300, spray column; 301, clear water reserviors; 302, precipitation pond; 304, the pond of drawing water; 305, back pool; 306, sediment cleaning pond.
The specific embodiment
Below, by reference to the accompanying drawings and the specific embodiment, the utility model is described further:
Refer to Fig. 1 to Fig. 5, the utility model provides a kind of kiln tail gas energy-saving and emission-reduction treatment facility, comprises Heat Room 100 and exhaust gases passes 200;
Described Heat Room 100 inside are provided with heat exchanging chamber 101, the top of heat exchanging chamber 101 is provided with heat exchanger tube array 110, described heat exchanger tube array 110 is along longitudinal setting of this kiln tail gas energy-saving and emission-reduction treatment facility, the front end of heat exchanger tube array 110 is provided with combustion air entrance 111, these combustion air entrance 111 places are provided with toward interior the first air-introduced machine (not shown) of carrying air of heat exchanger tube, the tail end of heat exchanger tube array 110 is provided with combustion air outlet 112, this combustion air outlet 112 and described kiln internal communication; Described the first air-introduced machine is blown into combustion air (being cool ambient air) in heat exchanger tube array 110 from combustion air entrance 111, exports 112 again and discharges, and by pipeline, the air of heating is imported to kiln inside after combustion air heat absorption from described combustion air; Described Heat Room 100 below one sides are provided with smoke inlet 103, and the front end face of Heat Room 100 belows is provided with exhanst gas outlet 104;
The entrance of described exhaust gases passes 200 connects the exhanst gas outlet 104 of described Heat Room 100, and the outlet of exhaust gases passes 200 connects the air intake vent of the second air-introduced machine 210.
When the utility model work, the flue gas importing from smoke inlet 103 is because temperature is higher, therefore its light specific gravity, in the time that flue gas enters heat exchanging chamber 101, flue gas rises and arrives the top of heat exchanging chamber 101, under the effect of described the second air-introduced machine 210, flue gas flows from back to front, and in this process with flow in from front to back the cold air generation heat exchange in heat exchanger tube array 110, this kind of convection type carries out the process of heat exchange, rate of heat exchange is high, the number that adds heat exchanger tube in heat exchanger tube array 110 is numerous, therefore heat exchanger tube array 110 is large with the overall contact area of flue gas, can reach splendid heat exchange effect, thereby improve combustion air and enter kiln temperature degree, actual showing, combustion air temperature after heat exchange can be promoted to 120-150 °, thereby can reduce the loss of kiln furnace heat, its energy-saving effect is remarkable, now, the flue gas that moves to heat exchanging chamber 101 front ends sinks because temperature reduces, and enters described exhaust gases passes 200 under the drive of described the second air-introduced machine 210, the flue gas of process heat exchange is because temperature reduces, therefore kinetic energy reduces, its front line speed in exhaust gases passes 200 slows down, thereby the flue dust remaining in flue gas can be in the sufficient sedimentation of the interior acquisition of exhaust gases passes 200, actual showing, flue gas through this infall process can reduce by 70% flue dust, and its emission reduction effect is remarkable, meets the environmental requirement of modern industry.
Therein in an embodiment, the middle part of described exhaust gases passes 200 is provided with the lateral partitions 201 that described exhaust gases passes 200 is divided into upper sheaf space and lower layer space, described upper sheaf space is used for placing material to be dried, as cullet, the broken pottery etc. of needs oven dry, this design can make flue gas in process exhaust gases passes 200, the material that also can be opposite to sheaf space carries out drying and processing, can further improve the utilization rate of waste heat of flue gas.
Further, in described lower layer space, be provided with the supporting clapboard 202 of the described lateral partitions 201 of multiple supports, described supporting clapboard 202 is staggered front to back on the left and right sidewall that is arranged at lower layer space, between these supporting clapboards 202 and the sidewall of lower layer space, form roundabout flue gas path, these supporting clapboards 202 not only can play the effect of the bearing capacity that strengthens lateral partitions 201, can also reducing smoke in the mobile speed of lower layer space, increase flue gas stroke simultaneously, thereby be more conducive to the abundant sedimentation of flue dust; In order further to strengthen the support force of described lateral partitions 201, in lower layer space, be also provided with the support column 204 evenly distributed along this device length direction, the two ends up and down of these support columns 204 are supported in respectively the diapire of lateral partitions 201 and described exhaust gases passes 300.
As further improvement, described Heat Room 100 and exhaust gases passes 200 are equipped with longitudinal baffle 105, and described Heat Room 100 and exhaust gases passes 200 are divided into respectively left and right two workspace A and B by this longitudinal baffle 105; Described smoke inlet 103 is provided with and imports respectively left and right two workspace A of Heat Room 100 and the flue gas of B enters pipeline 1031, preferably, described flue gas enters between pipeline 1031 and Heat Room 100 and is provided with movable valve (not shown), enters the conducting of pipeline 1031 or closes for controlling respectively this side flue gas; Two workspace A of Heat Room 100 and B respectively correspondence arrange a described exhanst gas outlet 104, and accordingly, described combustion air entrance 111 is also provided with two; Described two exhanst gas outlets 104 are communicated with respectively two workspace A and the B of described exhaust gases passes 200, two workspace A of exhaust gases passes 200 and the end of B are respectively arranged with an exhaust outlet 203, and corresponding each exhaust outlet 203 places are respectively arranged with described second air-introduced machine 210; These two workspace A and B can use simultaneously, also can use in turn; While use in turn, cleaning works can be carried out in idle workspace, is conducive to keep the clean of this device.
Further, longitudinal baffle 105 both sides of described Heat Room 100 are respectively equipped with several piece stretches into the baffle plate 106 of described heat exchanging chamber 101, between the end of every baffle plate 106 and Heat Room 100 two sides, leave gap, these baffle plates 106 are arranged on the travel path of flue gas, be conducive to flue gas and form backflow, the heat exchange number of times that increases flue gas and combustion air, is heated evenly the cold air in each heat exchanger tube, thereby further improves fume afterheat utilization rate; And, due to the inhibition of baffle plate 106, make flue gas elongated in the dead time of Heat Room 100, thereby be conducive to the sedimentation of flue dust.
As further improvement, in described Heat Room 100, be also provided with the support 107 for installing described heat exchanger tube array 110, described support 107 is provided with the support row 1071 that arrange several lateral separations, each support row 1071 are provided with between several upper and lower spaced accommodating areas 1072, described heat exchanger tube array 110 is arranged between described accommodating area in 1072 with triplets, this structural design can increase the overall contact area of heat exchanger tube array 110 and flue gas, thereby further improve rate of heat exchange, and be conducive to I&M; The bottom of described support 107 is also provided with several for supporting the supporting pillar 109 of this support 107.
Further, described Heat Room 100 tops are provided with removable removable cover 108, clean and maintenance work thereby facilitate staff to enter Heat Room 100 inside; Preferably, described removable cover 108 is made (as shown in Figure 4) by two sides jack star watt 1081 therebetween one deck aluminum silicate insulation material layers 1082, wherein, described jack star watts 1081 does not have the color steel watt of dope layer for surface, this jack star watt has more stable corrosion resistance under the environment of 1081 high-temperature flue gas, thereby can play the effect of the middle insulation material of protection, can provide this removable cover 108 certain rigidity simultaneously, can resist Heat Room 100 air pressure inside and change the pressure producing, increase the service life of removable cover 108; Aluminum silicate insulation material layer 1082 plays the effect of insulation.
Please continue and consult Fig. 1 and Fig. 2, particularly, in the above-described embodiments, the end of described exhaust gases passes 200 is also provided with the spray column 300 for further getting rid of harmful substances from flue gases (as sulfide etc.), this spray column 300 has the structure of chimney-like, and its cross section can be rectangle or circle; The open top of this spray column 300, the bottom of spray column 300 is communicated with the air outlet of described the second air-introduced machine 210, transmits and next flue gas for importing from exhaust gases passes 200; The top inner wall of spray column 300 is provided with multiple spray head (not shown), for the past alkaline cleaning solution of the interior injection of spray column 300, particularly, described alkaline cleaning solution can be calcium hydroxide and/or sodium hydroxide solution, for harmful substance generation chemical reactions such as the sulfide of flue gas and make it be deposited to spray column 300 bottoms; Particularly, this spray column 300 is also provided with clear water reserviors 301 and precipitation pond 302, and bottom one side of spray column 300 is provided with the pond 304 of drawing water being communicated with clear water reserviors 301, and the back pool 305 being connected with precipitation pond 302; Spray column 300 bottom opposite sides are provided with sediment cleaning pond 306.Spray column 300 inside are provided with water pump (not shown), for the clear water in the pond 304 of drawing water is pumped into described spray head; The process that the flue gas importing from spray column 300 bottoms rises from lower to upper, cleaning solution and flue gas occur fully to contact and with flue gas in the harmful substance generation chemical reaction such as sulfide, and generate sediment and fall spray column 300 bottoms, sediment and cleaning fluid carry out subsequent treatment from described back pool 305 flows into precipitation pond 302 again, thereby can reach the object that reduces the content that is discharged into extraneous harmful substances from flue gases, meet environmental requirement; Be worth mentioning, enter the flue gas of spray column 300 due to process UTILIZATION OF VESIDUAL HEAT IN step in early stage, therefore its temperature is lower general 100 ° than the temperature obtaining by traditional method, the temperature of flue gas is low, its kinetic energy is low, therefore flue gas slows down in the speed of spray column 300 interior risings, thereby is more conducive to fully reacting between the harmful substances such as sulfide in flue gas and cleaning solution, and then more effectively reduces the harmful substance contents that is discharged into flue gas in atmosphere.
In sum, the utility model is in the time of work, and cold air and the hot flue gas mode with convection current in Heat Room 100 is carried out heat exchange, can improve the charging temperature of combustion air, reduces the discharge temperature of hot flue gas simultaneously; Through the flue gas of heat exchange, passing into exhaust gases passes 200 when interior, front line speed slows down, and is conducive to the abundant sedimentation of flue dust; Actual showing, the combustion air temperature after heat exchange can be promoted to 120-150 °, can reduce by 70% flue dust through the flue gas of infall process, and its effects of energy saving and emission reduction is remarkable, meets environmental requirement.
to one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.

Claims (9)

1. a kind of kiln tail gas energy-saving and emission-reduction treatment facility, is characterized in that: comprise Heat Room and exhaust gases passes;
described Heat Room inside is provided with heat exchanging chamber, the top of heat exchanging chamber is provided with heat exchanger tube array, described heat exchanger tube array is along longitudinal setting of this kiln tail gas energy-saving and emission-reduction treatment facility, the front end of heat exchanger tube array is provided with combustion air entrance, and this combustion air porch is provided with toward interior the first air-introduced machine of carrying air of heat exchanger tube; The tail end of heat exchanger tube array is provided with combustion air outlet, this combustion air outlet and described kiln internal communication; Described Heat Room below one side is provided with smoke inlet, and the front end face of Heat Room below is provided with exhanst gas outlet;
the entrance of described exhaust gases passes connects the exhanst gas outlet of described Heat Room, and the outlet of exhaust gases passes connects the air intake vent of the second air-introduced machine.
2. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 1, is characterized in that: the middle part of described exhaust gases passes is provided with the lateral partitions that described exhaust gases passes is divided into upper sheaf space and lower layer space, described upper sheaf space is used for placing material to be dried.
3. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 2, is characterized in that: in described lower layer space, be provided with multiple supporting clapboards that are staggered front to back setting.
4. kiln tail gas energy-saving and emission-reduction treatment facility as described in claims 1 to 3 any one, it is characterized in that: described Heat Room and exhaust gases passes are equipped with longitudinal baffle, described Heat Room and exhaust gases passes are divided into respectively left and right two workspaces by this longitudinal baffle, and the flue gas that described smoke inlet is provided with left and right two workspaces that import respectively Heat Room enters pipeline; Two workspaces of Heat Room respectively correspondence arrange a described exhanst gas outlet; Two exhanst gas outlets are communicated with respectively two workspaces of described exhaust gases passes.
5. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 4, is characterized in that: described flue gas enters between pipeline and Heat Room and is provided with movable valve.
6. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 4, is characterized in that: the longitudinal baffle both sides of described Heat Room are respectively equipped with several piece stretches into the baffle plate of described heat exchanging chamber, between the end of every baffle plate and Heat Room two side, leaves gap.
7. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 1, it is characterized in that: in described Heat Room, be also provided with the support for installing described heat exchanger tube array, described support is provided with the support row of arranging several lateral separations, each support row are provided with between several upper and lower spaced accommodating areas, and described heat exchanger tube array is arranged in described accommodating area with triplets.
8. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 1, is characterized in that: described Heat Room top is provided with removable removable cover.
9. kiln tail gas energy-saving and emission-reduction treatment facility as claimed in claim 8, is characterized in that: described removable cover is made up of two sides jack star watt therebetween one deck aluminum silicate insulation material.
CN201420032325.3U 2014-01-17 2014-01-17 Kiln tail gas energy-saving emission-reduction treatment device Expired - Lifetime CN203657521U (en)

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CN201420032325.3U CN203657521U (en) 2014-01-17 2014-01-17 Kiln tail gas energy-saving emission-reduction treatment device

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Application Number Priority Date Filing Date Title
CN201420032325.3U CN203657521U (en) 2014-01-17 2014-01-17 Kiln tail gas energy-saving emission-reduction treatment device

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CN203657521U true CN203657521U (en) 2014-06-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776269A (en) * 2014-01-17 2014-05-07 孔庆英 Kiln tail-gas energy-saving and emission-reducing processing equipment
CN105311895A (en) * 2015-12-07 2016-02-10 杨德俊 Method and device for removing solid matters and harmful gases in smoke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776269A (en) * 2014-01-17 2014-05-07 孔庆英 Kiln tail-gas energy-saving and emission-reducing processing equipment
CN105311895A (en) * 2015-12-07 2016-02-10 杨德俊 Method and device for removing solid matters and harmful gases in smoke
CN105311895B (en) * 2015-12-07 2017-06-16 湘南学院 A kind of method and its device for dispelling solid content and pernicious gas in flue gas

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