CN106621689B - Gas purification and separation device for walking beam type continuous glue discharging sintering furnace - Google Patents
Gas purification and separation device for walking beam type continuous glue discharging sintering furnace Download PDFInfo
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- CN106621689B CN106621689B CN201710100942.0A CN201710100942A CN106621689B CN 106621689 B CN106621689 B CN 106621689B CN 201710100942 A CN201710100942 A CN 201710100942A CN 106621689 B CN106621689 B CN 106621689B
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- 238000000746 purification Methods 0.000 title claims abstract description 34
- 238000007599 discharging Methods 0.000 title claims abstract description 31
- 238000000926 separation method Methods 0.000 title claims abstract description 30
- 238000005245 sintering Methods 0.000 title claims abstract description 29
- 239000003292 glue Substances 0.000 title abstract description 31
- 238000001816 cooling Methods 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 239000012535 impurity Substances 0.000 claims description 34
- 238000005192 partition Methods 0.000 claims description 20
- 239000011230 binding agent Substances 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 53
- 150000002431 hydrogen Chemical class 0.000 description 26
- 239000001257 hydrogen Substances 0.000 description 22
- 229910052739 hydrogen Inorganic materials 0.000 description 22
- 239000011229 interlayer Substances 0.000 description 21
- 239000000047 product Substances 0.000 description 11
- 208000028659 discharge Diseases 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 9
- 239000012298 atmosphere Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000012188 paraffin wax Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- -1 (CH 2O) Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/002—Separation 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 by condensation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/005—Separation 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 by heat treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/65—Employing advanced heat integration, e.g. Pinch technology
- B01D2259/652—Employing advanced heat integration, e.g. Pinch technology using side coolers
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention discloses a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace, which comprises an outer box body, wherein an inner box body is arranged in the outer box body, a plurality of heating sleeves are arranged between the outer box body and the inner box body, a cooling box is arranged in the inner box body, the outer side wall of the cooling box is mutually isolated from the inner side wall of the inner box body, an air outlet channel and an air inlet channel are respectively arranged at the upper part and the lower part of the inner box body, the cooling box is provided with a water pipe and an air pipe which are communicated with the inner space of the cooling box body, the cooling box is a water box, the water pipe comprises a long water pipe and a short water pipe, the lower port of the long water pipe is arranged at the bottom of the inner part of the water box, the lower port of the short water pipe is arranged at the top of the inner part of the water box, the air pipe is a high-pressure air pipe, and the lower port of the air pipe is communicated with the top of the inner part of the water box. The gas purification and separation device for the walking beam type continuous glue discharging sintering furnace has the advantages of being capable of improving the yield of products, saving production materials, being environment-friendly, being convenient for later maintenance and the like, which are not possessed by the prior art.
Description
Technical Field
The invention relates to tail gas treatment equipment of a continuous furnace, in particular to a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace.
Background
In a continuous furnace, the principle of the glue discharging process is that under the low temperature (150-500 ℃) and the protective atmosphere, adhesive (such as PW, CW, PP, PE and the like) is evaporated or thermally decomposed to generate gas micromolecules (such as formaldehyde, ethylene, styrene and the like), the gas micromolecules are transmitted to the surface of a forming blank in a diffusion or permeation mode, and then the adhesive is decomposed into gas which is separated from the surface of the forming blank and enters the external atmosphere; the sintering process principle is that the injection molding blank is a porous body after being debonded, and the voids left after debonding are isotropically and uniformly shrunk at high temperature (1100-1500 ℃) to achieve densification and chemical component uniformity.
At present, a commonly used protective agent in the glue discharging process is hydrogen (H2), strong reducing hydrogen (H2) can protect metal powder which is easy to oxidize or reduce metal which is oxidized, hydrogen atoms of the hydrogen (H2) are very small and easily enter the inside of a forming blank to drive small molecules of an adhesive to quickly diffuse or permeate to the surface of the forming blank. And hydrogen (H2) does not react with the metal.
Most traditional gas purification device use modes such as absorption, acid-base neutralization, replacement to get rid of impurity, but in powder metallurgy metal injection moulding technique, need remain hydrogen (H2), can not let it contact with oxygen, so equipment need be sealed, just so can guarantee that hydrogen (H2) do not mix with oxygen, can the reutilization, so traditional gas purification device should not use in this technical field. Secondly, traditional gas purification device filters the particulate matter through the filter after the waste gas gets into equipment, then gets into the adsorption zone absorption purification again. However, PW, PE, etc. among the impurities are too viscous to flow easily and clog the filter, and thus are not suitable for this purpose. The purified gas is then vented to the atmosphere by a ventilator or into other equipment for use.
After the walking beam type continuous glue discharging sintering furnace discharges glue, the traditional treatment method is to directly discharge tail gas into a combustion chamber for combustion. However, the impurity concentration generated by the rubber discharge in the furnace is too high, the microscopic holes of the rubber discharge product can be blocked, the rubber discharge of the product is influenced, hydrogen (H2) gas is prevented from entering the deep inside of the product, the heat is wasted in the rubber discharge stage, the rubber discharge time is long, the yield is low, and the yield is low.
In summary, the prior art has the following defects:
1. the traditional binder removal sintering furnace has no atmosphere circulation inside:
in the rubber discharge stage of the traditional rubber discharge sintering furnace, tail gas generated by rubber discharge and debonding and hydrogen are introduced into a combustion chamber together for combustion, so that the use amount of the hydrogen is increased. Moreover, impurities generated by glue discharging can block microscopic holes of the degreased product, affect the glue discharging and debonding of the product and prevent hydrogen (H2) gas from entering the deep inside of the product, so that heat is wasted in the glue discharging stage, the glue discharging time is long, the yield is low, and the yield is low;
2. the fluidity of the atmosphere in the furnace body is not strong, and the yield is influenced:
because the impurity that the binder removal debonded the production, like paraffin, (CH 2O), PE, PP etc. the viscidity is high, and the mobility is poor, accumulates easily in the furnace chamber, blocks up vent etc. and leads to some functions of equipment to lose, clears up the difficulty, maintains the difficulty etc.. And the processing original piece can also be influenced, so that the problems of incomplete glue discharging and debonding, uneven heating and the like are caused.
3. The filter is easily blocked:
in the emission of tail gas, there are hydrogen (H2), paraffin, PE, PP etc. through the cooling back, paraffin, PE, PP etc. can paste on the filter, because paraffin, PE, PP etc.'s viscidity is high, is difficult for being cleared up, plugs up the filter easily, needs often to dismantle filter and carbon fiber washing and regeneration out, influences production, and is very inconvenient.
In a word, the prior art has the technical defects of low glue discharging efficiency, low product yield, high raw material consumption, high production cost, difficult maintenance and the like.
In view of the above, the present invention provides a new solution to solve the existing technical drawbacks.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace, which solves the technical defects of low glue discharging efficiency, unblocked gas flow, low product yield, large raw material waste, high cost, difficult maintenance and the like in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace comprises an outer box body, wherein an inner box body is arranged in the outer box body, a plurality of heating jackets are arranged between the outer box body and the inner box body, a cooling box is arranged in the inner box body, the outer side wall of the cooling box is mutually isolated from the inner side wall of the inner box body, an air outlet channel and an air inlet channel are respectively arranged at the upper part and the lower part of the inner box body, the cooling box is provided with a water pipe and an air pipe which are communicated with the inner space of the cooling box body, the cooling box 4 is used for flowing cooling water to reduce the temperature of gas so as to cool impurities into solid or liquid, an inner box body partition sheet (21) is arranged on the inner side wall of the inner box body (2), a cooling box partition sheet (41) is arranged on the outer side wall of the cooling box (4), and the inner box partition sheet (21) and the cooling box partition sheet (41) are arranged at intervals.
As an improvement of the above technical scheme, the cooling box is a water tank, the water pipe comprises a long water pipe and a short water pipe, a lower port of the long water pipe is arranged at the bottom inside the water tank, a lower port of the short water pipe is arranged at the top inside the water tank, the air pipe is a high-pressure air pipe, and the lower port of the air pipe is communicated to the top inside the water tank.
As a further improvement of the technical scheme, a cooling box supporting frame is arranged at the bottom of the cooling box, and the upper part of the cooling box is fixed on the upper part of the inner box body through a cooling box flange.
As a further improvement of the above technical solution, the inner side wall of the inner box body is provided with a circular inner box body partition sheet, and the inner edge of the inner box body partition sheet is isolated from the outer side wall of the cooling box.
As a further improvement of the above technical solution, the cooling box is provided with a circular ring-shaped cooling box spacer sheet on the outer side wall thereof, and the outer edge of the cooling box spacer sheet is isolated from the inner side wall of the inner box body.
As a further improvement of the technical scheme, the inner box body interlayer sheet and the cooling box interlayer sheet are provided with a plurality of sheets, the inner box body interlayer sheet and the cooling box interlayer sheet are arranged at intervals in sequence, and a space for gas circulation is formed between the inner box body interlayer sheet and the cooling box interlayer sheet.
As a further improvement of the technical scheme, the bottom of the gas purification and separation device is provided with an impurity collecting port which is communicated with the bottom of the inner box body.
As a further improvement of the technical scheme, a thermocouple is arranged at the bottom of the inner box body, and a heating wire positioned in the inner box body is arranged below the thermocouple.
As a further improvement of the technical scheme, an exhaust fan is arranged on the air outlet channel.
As a further improvement of the technical scheme, the length of the heating jacket is 188mm.
The beneficial effects of the invention are: the invention provides a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace, which has the advantages of the following aspects:
1. according to the gas purification and separation device provided by the invention, tail gas discharged from the beam type continuous glue discharging sintering furnace can be purified, and purified hydrogen (H2) can be recycled, so that raw materials are saved, and the production cost can be effectively reduced;
2. after entering a purification and separation device, tail gas is heated in a high-temperature area and cooled in a low-temperature area, cooled impurities (paraffin, (CH 2O), PE, PP and the like) are attached to a water tank and an interlayer sheet, hydrogen (H2) flows back into a furnace body, and the impurities are easy to collect and clean;
3. the gas purification and separation device provided by the invention can effectively improve the internal working environment of the continuous furnace, improve the fluidity of the internal atmosphere of the furnace body, reduce the accumulation of impurities in the furnace chamber, eliminate the adverse effect of the impurities in the atmosphere on the glue discharging process, improve the glue discharging efficiency, further improve the yield of products of the continuous furnace and improve the quality of the products;
4. the gas purifying and separating device guides the flow direction of gas, so that the accumulation of impurities generated by degumming and degreasing in the furnace chamber can be reduced, the cleaning period is prolonged, the maintenance cost is reduced, and the maintenance of a continuous furnace by maintenance personnel is facilitated;
5. after the gas purification and separation device provided by the invention is adopted, the utilization rate of hydrogen (H2) can be improved, the use amount of the hydrogen (H2) is reduced, the cost is reduced, and the working safety is improved.
The gas purification and separation device for the walking beam type continuous glue discharging sintering furnace solves the technical defects of low glue discharging efficiency, unblocked gas flow, low yield of products, large waste of raw materials, high cost, difficult maintenance and the like in the prior art.
Drawings
The invention is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a flow chart of purification and separation of a walking beam type continuous binder removal sintering furnace;
fig. 2 is a schematic diagram of the principle of the present invention.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection/connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to specific implementation conditions. The technical features of the invention can be interactively combined without conflicting with each other, as shown in fig. 1 and 2.
Referring to fig. 1, the glue discharging stage and the sintering stage of the furnace body are communicated, and the processing raw materials can enter the sintering stage to be sintered at a high temperature (1100-1500 ℃) after glue discharging and debonding at a low temperature (150-500 ℃) in the glue discharging stage, and then enter cooling. Hydrogen is introduced from the cooling area and preheated, enters the sintering stage, is heated at high temperature, enters the low-temperature glue discharging stage to serve as protective atmosphere, and guides the flow direction of impurity tail gas generated by glue discharging and debonding.
Part of impurity tail gas and hydrogen (H2) generated by degumming and debonding flows into a combustion chamber for combustion, and then is discharged into the atmosphere; one part of the hydrogen is guided into the purification and separation device, the purified hydrogen flows into the furnace body again, and the separated impurities are collected. The purification and separation flow chart of the walking beam type continuous glue discharging sintering furnace is shown in figure 2.
To separate out the hydrogen (H2), the impurities are first removed. The principle of separating impurities here is solid, liquid, gaseous filtration. The gaseous impurities are liquefied and solidified to form liquid or solid, and then are filtered, so that the separation of the hydrogen (H2) can be realized.
With particular reference to fig. 2, the invention provides a gas purification and separation device for a walking beam type continuous glue discharging sintering furnace, which comprises an outer box body 1, wherein an inner box body 2 is arranged inside the outer box body 1, a plurality of heating jackets 3 are arranged between the outer box body 1 and the inner box body 2, a cooling box 4 is arranged inside the inner box body 2, the outer side wall of the cooling box 4 is isolated from the inner side wall of the inner box body 2, in the embodiment, a cooling box support frame is arranged at the bottom of the cooling box 4, and the upper part of the cooling box 4 is fixed on the upper part of the inner box body 2 through a cooling box flange. Interior box 2 is provided with air outlet channel 22 and inlet channel 23 respectively in its upper portion and lower part, air outlet channel 22 is last to be provided with air exhauster 24 water pipe and trachea 51 rather than the inner space intercommunication are provided with to cooler bin 4, cooler bin 4 is the water tank, the water pipe includes long water pipe 52 and short water pipe 53, the lower port of long water pipe 52 sets up the inside bottom at the water tank, the lower port of short water pipe 53 sets up at the inside top of water tank, trachea 51 is high-pressurepipe, and tracheal 51's lower port communicates the inside top of water tank, gas purification separator is provided with impurity collection mouth 6 in its bottom, impurity collection mouth 6 communicates the bottom of interior box 2, interior box 2 is provided with thermocouple 7 in its inside bottom position, thermocouple 7 below is provided with the inside heater strip 8 of box 2 in lieing in.
Preferably, the inner side wall of the inner box body 2 is provided with a circular inner box body interlayer sheet 21, the inner edge of the inner box body interlayer sheet 21 is isolated from the outer side wall of the cooling box 4, the outer side wall of the cooling box 4 is provided with a circular cooling box interlayer sheet 41, the outer edge of the cooling box interlayer sheet 41 is isolated from the inner side wall of the inner box body 2, the inner box body interlayer sheet 21 and the cooling box interlayer sheet 41 are both provided with a plurality of sheets, the inner box body interlayer sheet 21 and the cooling box interlayer sheet 41 are sequentially arranged at intervals, and a space for gas circulation is formed between the inner box body interlayer sheet 21 and the cooling box interlayer sheet 41.
When the equipment starts to work, cooling water is injected into the cooling box 4 firstly, the cooling water flows in from the long water pipe 52 and flows out from the short water pipe 53, so that the cooling box 4 can be ensured to be filled with the water, and the cooling effect can be accelerated; at the same time the heating jacket 3 also starts to heat up. At this time, tail gas enters the gas purification and separation device through the gas inlet channel 23, the heating sleeve 3 starts to heat, the nearby parts are all high temperature, the inner box body 2 is heated at the same time, the nearby parts of the inner box body 2 are heated, and a high temperature region is formed; the cooling water is continuously injected into the cooling box 4 from the long water pipe 52, so that the temperature near the cooling box 4 is low, and a low-temperature area is formed. After entering the inner box body 2, the tail gas flows in the space between the inner box body 2 and the cooling box 4, and in the flowing process of the gas, the gas is heated in a high-temperature area and cooled in a low-temperature area, and due to the structure that the inner box body interlayer sheet 21 and the cooling box interlayer sheet 41 are arranged at intervals, the gas can continuously and circularly flow in the high-temperature area and the low-temperature area, so that impurities such as paraffin, PE, PP and the like in the tail gas are solidified and are attached to the surfaces of the cooling box 4 and the interlayer sheet. The hydrogen (H2) will continue to flow upward and flow out through the outlet channel 22, and the exhaust fan 24 disposed on the outlet channel 22 can accelerate the gas flow speed, thereby improving the effect.
When the equipment stops working, in order to ensure that the tail gas in the degreasing furnace can be completely discharged, the N2 is always aerated in the process. Meanwhile, when the impurities in the purification and separation apparatus are to be removed, the cooling water is stopped from being injected, and then the compressed air is introduced into the cooling tank 4 through the air pipe 51, so that the cooling water is discharged from the lower end of the long water pipe 52, thereby ensuring that little or no water remains in the cooling tank 4. At this time, the heating jacket 3 continues to heat, so that the impurities such as paraffin, PE, PP, etc. are made to flow into the bottom as liquid, and then flow out through the impurity collecting port 6. The cooling box 4 can be taken out of the box body for cleaning when necessary.
In the technical scheme of the invention, the functions of each main component are as follows: the outer box body 1 is used for protecting the heating sleeve 3, fixing the heating sleeve 3 and preserving heat; the cooling box 4 is used for flowing cooling water to reduce the temperature of tail gas, so that impurities in the tail gas are cooled into solid or liquid, separation is convenient, and attachment points are provided; the inner box body 2 is used for enabling the heating sleeve 3 to be attached to the outer surface of the inner box body for fixing, protecting the heating sleeve 3 and simultaneously transferring heat; the heating jacket 3 is used for keeping the temperature of the inner cavity and ensuring that gas can flow from high temperature to low temperature; the function of the interlayer sheet is to provide an attachment point for cooled impurities, namely to increase the area of the cooling attachment point; the thermocouple 7 is used for detecting the temperature of the gas flowing in at the gas inlet channel 23 and also can detect the temperature of the heating wire 8 during heating; the heating wire 8 is used for heating the impurities to enable the impurities to flow out as liquid when the impurities are left and if the impurities are solidified, the impurities are heated by the heating wire 8.
The exhaust fan is used for pumping out the purified gas and accelerating the fluidity of the gas.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a gas purification separator for walking beam formula sintering furnace that arranges in succession which characterized in that: the inner box body is characterized by comprising an outer box body (1), an inner box body (2) is arranged inside the outer box body (1), a plurality of heating jackets (3) are arranged between the outer box body (1) and the inner box body (2), a cooling box (4) is arranged inside the inner box body (2), the outer side wall of the cooling box (4) is mutually isolated from the inner side wall of the inner box body (2), an air outlet channel (22) and an air inlet channel (23) are respectively arranged at the upper part and the lower part of the inner box body (2), the cooling box (4) is provided with a water pipe and an air pipe (51) which are communicated with the inner space of the cooling box body, the cooling box (4) has the function of flowing cooling water to reduce the temperature of air so that impurities are cooled into solid or liquid, an inner box body partition sheet (21) is arranged on the inner side wall of the inner box body (2), a cooling box partition sheet (41) is arranged on the outer side wall of the cooling box body (4), and the inner box body partition sheet (21) and the cooling box partition sheet (41) are arranged at intervals.
2. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace according to claim 1, wherein: the cooling box (4) is a water tank, the water pipe comprises a long water pipe (52) and a short water pipe (53), the lower port of the long water pipe (52) is arranged at the bottom of the inside of the water tank, the lower port of the short water pipe (53) is arranged at the top of the inside of the water tank, the air pipe (51) is a high-pressure air pipe, and the lower port of the air pipe (51) is communicated to the top of the inside of the water tank.
3. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace according to claim 1, wherein: and a cooling box support frame is arranged at the bottom of the cooling box (4), and the upper part of the cooling box (4) is fixed on the upper part of the inner box body (2) through a cooling box flange.
4. The gas purifying and separating device for the walking beam type continuous discharging sintering furnace according to claim 1, characterized in that: the inner side wall of the inner box body (2) is provided with a circular inner box body partition sheet (21), and the inner edge of the inner box body partition sheet (21) is isolated from the outer side wall of the cooling box (4).
5. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace as claimed in claim 4, wherein: the cooling box (4) is provided with a circular cooling box partition sheet (41) on the outer side wall, and the outer edge of the cooling box partition sheet (41) is isolated from the inner side wall of the inner box body (2).
6. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace as claimed in claim 5, wherein: the inner box body partition sheet (21) and the cooling box partition sheet (41) are provided with a plurality of sheets, the inner box body partition sheet (21) and the cooling box partition sheet (41) are sequentially arranged at intervals, and a space for gas circulation is formed between the inner box body partition sheet (21) and the cooling box partition sheet (41).
7. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace according to claim 1, wherein: the bottom of the gas purification and separation device is provided with an impurity collecting port (6), and the impurity collecting port (6) is communicated with the bottom of the inner box body (2).
8. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace according to claim 1, wherein: the inner box body (2) is provided with a thermocouple (7) at the bottom of the inner box body, and a heating wire (8) positioned inside the inner box body (2) is arranged below the thermocouple (7).
9. The gas purification and separation device for the walking beam type continuous binder removal sintering furnace according to claim 1, wherein: an exhaust fan (24) is arranged on the air outlet channel (22).
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| CN201710100942.0A CN106621689B (en) | 2017-02-23 | 2017-02-23 | Gas purification and separation device for walking beam type continuous glue discharging sintering furnace |
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| US3963444A (en) * | 1970-12-26 | 1976-06-15 | Nippondenso Co., Ltd. | Secondary air supply means of exhaust gas cleaning devices |
| JP3280173B2 (en) * | 1994-11-29 | 2002-04-30 | 日本エア・リキード株式会社 | Exhaust gas treatment equipment |
| CN202032885U (en) * | 2011-05-06 | 2011-11-09 | 李锦桥 | Ceramic adhesive removal environmentally-friendly kiln |
| CN203052679U (en) * | 2012-12-05 | 2013-07-10 | 常州恒威净化设备有限公司 | Integrated tail gas combustion purifier |
| CN103341276B (en) * | 2013-07-16 | 2015-07-15 | 锦州市天翔科技节能服务有限公司 | Coal-fired boiler smoke exhaust and purification filter box |
| CN206543506U (en) * | 2017-02-23 | 2017-10-10 | 深圳市星特烁科技有限公司 | A kind of gas-purification separation device for the continuous dumping sintering furnace of stepping beam type |
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