CN204816207U - Novel dust removing desulfurizer - Google Patents
Novel dust removing desulfurizer Download PDFInfo
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- CN204816207U CN204816207U CN201520648566.5U CN201520648566U CN204816207U CN 204816207 U CN204816207 U CN 204816207U CN 201520648566 U CN201520648566 U CN 201520648566U CN 204816207 U CN204816207 U CN 204816207U
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- cylindrical shell
- lining
- rain cap
- lateral wall
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Abstract
The utility model provides a novel dust removing desulfurizer belongs to mechanical technical field. It has solved the current big problem of the flue gas wet process dedusting desulphurizer processing degree of difficulty. This novel dust removing desulfurizer includes the open barrel in top, the barrel bottom is fixed with the intake pipe, top -down is equipped with spray set in proper order in the barrel, bushing and rain cap, bushing and rain cap all are coniformly, and rain cap, the bushing, an air inlet pipe, the the central axis collineation of barrel, spray set is last have with the inner chamber of bushing just right outage mutually, the intake pipe upper end is inserted and is established in the rain cap, it keeps off the shoulder to have the annular on the inner wall of barrel, have on the lateral wall of bushing and paste the annular convex shoulder that leans on mutually with annular fender shoulder -mounted terminal surface, the annular convex shoulder is sealed fixed with annular fender shoulder, the lateral wall of bushing is fixed mutually with the rain cap lateral wall through being long flaky connection piece, length along the barrel axial extension of connection piece, the connection piece has at least 2 just to follow barrel circumference equipartition. This novel dust removing desulfurizer has the low advantage of the processing degree of difficulty.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of Novel dust removal devulcanizer.
Background technology
Flue gas ash removal and scrubbing CO_2 are two importances polluted that control environment.Wet dedusting desulfurization principle of the prior art: after general employing boiler smoke enters deduster, when by shower water, swash with aqueous phase, adopts Physical to make water atomization wash flue dust.In addition, shower water can use alkaline solution, adopts chemical method reacting generating salt in the sulfur dioxide in flue gas and a small amount of sulfur trioxide and alkaline solution contact process, falls into the ash-pit that to fall bottom deduster together with dust.After precipitation, then through artificial or grey machine ash is cleared out from ashpit.Flue gas after purification naturally aspirates through chimney and is discharged to air., there is following shortcoming: general flue gas only once contacts with shower water the chance swashed mutually in the prior art equipment that this usual principle of current employing manufactures, causes washing flue dust abundant not.
For above-mentioned problem, people appreciate deficiency, and in addition improvement, a kind of flue-gas wet dust removal desulfurizer [application number: 200810094350.3 disclosed in Chinese patent storehouse, Authorization Notice No.: CN101569831A], comprise the circular body that two ends are cone, the upper end of circular body is pure qi (oxygen) outlet, the lower end of circular body is gas approach, the bottom perisporium of circular body is provided with the gap of controlling water level and the dirt-discherging outlet of dust discharge, the pipe of described gas approach extends in circular body, the pipe top of gas approach is provided with by the rain cap of support support and connection, the top of rain cap is provided with the cone lining be connected with circular body inwall, the top of cone lining is provided with the circular jetting shower pipe around circular body inwall, the circular jetting shower pipe water inlet pipe external with circular device is connected, tube wall below circular jetting shower pipe radius offers many uniform perforates, when water to be sprayed onto cone lining from each perforate of circular jetting shower pipe and to be flow on rain cap by cone lining perisporium, form the secondary moisture film waterfall of cone lining internal face and rain cap outside wall surface.
Above-mentioned flue-gas wet dust removal desulfurizer by formation two place moisture film waterfall, with the time of contact of prolong smoke and moisture film waterfall, thus effectively improves the effect of dust-removal and desulfurizing.But still there is a problem in this dust-removing desulfurizing device: when reality uses, sealing must be kept between lining and circular body, and above-mentioned dust-removing desulfurizing device realizes sealing by lining lateral wall and circular body madial wall tight abutment, this is not only larger to the dimension precision requirement of lining, and under Long-Time Service, lining can be moved, and causes dust-removing desulfurizing device to use.
Utility model content
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of long service life and the low Novel dust removal devulcanizer of difficulty of processing.
The purpose of this utility model realizes by following technical proposal: a kind of Novel dust removal devulcanizer, comprise the cylindrical shell of open top, the bottom of cylindrical shell is provided with sewage draining exit and is vertically fixed with the air inlet pipe be connected with cylinder lumen, spray equipment is provided with successively from top to bottom in cylindrical shell, lining and rain cap, lining and rain cap are all in coniform, and rain cap, lining, air inlet pipe, the central axis conllinear of cylindrical shell, described spray equipment has the outage faced with the inner chamber of lining, the upper end of described air inlet pipe is plugged in rain cap, it is characterized in that, the upper end of described cylindrical shell is arranged with aiutage, aiutage comprises conically exhaust portion and being connected and tubular connecting portion with exhaust portion lower end, described connecting portion is set on cylindrical shell and both fix, the internal diameter of described exhaust portion increases downwards gradually, the hermetically-sealed construction making both connect sealing is provided with between described connecting portion and cylindrical shell, the inwall of described cylindrical shell has annular shoulder block, the lateral wall of described lining has the annular convex shoulder reclined mutually with annular shoulder block upper surface, and annular convex shoulder and the sealing of annular shoulder block are fixed, the lateral wall of described lining by the brace of lengthy motion picture shape and the lateral wall of rain cap fix, and the length of brace extends along the axis of cylindrical shell, described brace has 2 at least and circumference along cylindrical shell is uniform.
In actual product, the internal diameter of lining reduces downwards gradually, rain cap upper end closed, lower ending opening, and the internal diameter of rain cap increases downwards gradually.When this Novel dust removal devulcanizer is installed, the exhaust portion on aiutage is connected with air exhauster by pipeline; Spray equipment is connected with water pump can provide sufficient alkaline solution to spray equipment.During use, air exhauster and water pump work simultaneously, and wherein, pump working is to inject alkaline solution to spray equipment, and then alkaline solution is flow in lining and along the axis of lining by outage and flows down formation moisture film waterfall; Then, alkaline solution to flow on rain cap outer surface and along the tapering dirty formation secondary moisture film waterfall of the outer surface of rain cap; The flue gas exported from boiler to be entered by the lower port of air inlet pipe and to discharge from the upper port of this air inlet pipe, under the effect of air exhauster, flue gas can flow along the tapering of the inner surface of rain cap, and flowed out by the gap between rain cap and lining and lining successively, and in above-mentioned process, flue gas contacts with a moisture film waterfall with secondary moisture film waterfall respectively and purifies, and effectively extends the time that flue gas contacts with alkaline solution, thus effectively improves dust-removal and desulfurizing effect.
This dust-removing desulfurizing device is offseted by the upper surface of the lower surface and annular shoulder block that arrange annular convex shoulder, to support preferably lining, make lining when Long-Time Service all the time can holding position constant, thus dust-removing desulfurizing device can comparatively stably be worked all the time, then improve the service life of dust-removing desulfurizing device.Lining is resisted against by annular convex shoulder on the annular shoulder block on cylindrical shell and positions, and annular convex shoulder and the sealing of annular shoulder block are fixed together, the area be stacked between annular convex shoulder and annular shoulder block can be fluctuated within the specific limits, must be formed with cylinder inboard wall tight abutment relative to the outer wall of lining in prior art and seal, effectively to reduce the requirement to lining size, thus reduce the difficulty of processing of lining, then reduce the difficulty of processing of this dust-removing desulfurizing device.Lining is fixed by brace and rain cap, makes the installation namely completing rain cap while installing lining, thus improves the convenience of this dust-removing desulfurizing device of assembling.
In above-mentioned Novel dust removal devulcanizer, the lateral wall of described cylindrical shell offers annular groove, described hermetically-sealed construction comprises the one 0 RunddichtringO being positioned at annular groove, and the outer peripheral face of the one 0 RunddichtringO and the madial wall of described connecting portion offset.
The internal diameter of connecting portion and the external diameter of cylindrical shell match, namely the internal diameter of connecting portion is slightly larger than the external diameter of cylindrical shell, effectively to reduce the distance between connecting portion inwall and cylinder body outer wall, make the 1 RunddichtringO occur larger deformation and with connecting portion inwall comparatively closely against, thus the connection sealing that effectively improve between connecting portion and cylindrical shell, the suction of air exhauster is comparatively stably delivered in cylindrical shell, contact with moisture film waterfall comparatively rapidly to make flue gas and purify, effectively to improve the purification efficiency of this dust-removing desulfurizing device.
Alternatively, in above-mentioned Novel dust removal devulcanizer, the lateral wall of described cylindrical shell has the sealing one protruded in the form of a ring, the lateral wall of described connecting portion has the sealing two protruded in the form of a ring, described hermetically-sealed construction comprises and reclining and the sealing gasket one be fixed on the lower surface of sealing two, and the lower surface of sealing gasket one reclines mutually with sealing one.
In above-mentioned Novel dust removal devulcanizer, the lower surface of described annular convex shoulder offers ringwise seal groove, and seal groove and annular convex shoulder are coaxially arranged, be provided with ringwise sealing gasket two in described seal groove, and the both ends of the surface of sealing gasket two offset with the diapire of seal groove and the upper surface of annular shoulder block respectively.
Under the effect of sealing gasket two, the connection between annular shoulder block and annular convex shoulder is made to keep sealing, flue gas can only be flowed out by lining all the time, the purification of two place's moisture film waterfalls can be obtained with effective guarantee flue gas all the time, to improve the dust-removal and desulfurizing effect of this dust-removing desulfurizing device.
Alternatively, in above-mentioned Novel dust removal devulcanizer, the lower surface of described annular convex shoulder has the Plug Division of cylindrically protruding, and Plug Division is coaxial with annular convex shoulder, on described annular shoulder block, correspondence is provided with annular positioning groove, and described Plug Division is plugged in annular positioning groove, and the lateral wall of Plug Division offers annular slot, be provided with the 20 RunddichtringO in this annular slot, and the outer peripheral face of the 20 RunddichtringO and the madial wall of annular positioning groove offset.
In above-mentioned Novel dust removal devulcanizer, the lower surface of described annular convex shoulder has the joint pin protruded in direct rod shape, joint pin has some and annularly the circumference of convex shoulder is uniform, described annular shoulder block is provided with through hole vertically, the quantity of through hole and position one_to_one corresponding identical with joint pin, every root joint pin is all plugged in corresponding through hole, and described cylindrical shell is cylindrical, and described sealing gasket two is between joint pin and the inwall of cylindrical shell.
By arranging joint pin and through hole, play good guide effect to the installation of lining, to enable lining more adequately be installed to assigned address all the time, to make, the object of raising dust-removal and desulfurizing is stable to be realized.
Compared with prior art, this Novel dust removal devulcanizer has the following advantages:
1, offseted by the upper surface of the lower surface and annular shoulder block that arrange annular convex shoulder, to support preferably lining, make lining when Long-Time Service all the time can holding position constant, thus dust-removing desulfurizing device can comparatively stably be worked all the time, then improve the service life of dust-removing desulfurizing device.
2, the annular shoulder block that lining is resisted against on cylindrical shell by annular convex shoulder positions, and annular convex shoulder and the sealing of annular shoulder block are fixed together, the area be stacked between annular convex shoulder and annular shoulder block can be fluctuated within the specific limits, must be formed with cylinder inboard wall tight abutment relative to the outer wall of lining in prior art and seal, effectively to reduce the requirement to lining size, thus reduce the difficulty of processing of lining, then reduce the difficulty of processing of this dust-removing desulfurizing device.
3, lining is fixed by brace and rain cap, makes the installation namely completing rain cap while installing lining, thus improves the convenience of this dust-removing desulfurizing device of assembling.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structure for amplifying schematic diagram at A place in Fig. 1.
In figure, 1, cylindrical shell; 1a, sewage draining exit; 1b, annular shoulder block; 2, air inlet pipe; 3, lining; 3a, annular convex shoulder; 3b, joint pin; 4, rain cap; 5, spray equipment; 5a, standpipe; 5a1, outage; 5b, tube connector; 6, aiutage; 6a, exhaust portion; 6b, connecting portion; 7, sealing gasket two; 8, brace; 9, the one 0 RunddichtringO; 10, air exhauster.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this Novel dust removal devulcanizer is made up of cylindrical shell 1, air inlet pipe 2, lining 3, rain cap 4, spray equipment 5, aiutage 6 etc.Wherein, cylindrical shell 1 is cylindrical, cylindrical shell 1 open top, and the diapire of this cylindrical shell 1 offers sewage draining exit 1a, discharges for the impurity that will drop on bottom cylindrical shell 1.
Air inlet pipe 2 is cylindrical and be vertically fixed on bottom cylindrical shell 1, now, and the inner chamber of air inlet pipe 2 and cylindrical shell 1 intracavity inter-connection.As shown in Figure 1, spray equipment 5, lining 3 and rain cap 4 three are successively set in cylindrical shell 1 from top to bottom.Wherein, lining 3 and rain cap 4 are all in coniform, and the central axis conllinear of rain cap 4, lining 3, air inlet pipe 2, cylindrical shell 1 four.
Specifically, spray equipment 5 comprises in circular standpipe 5a and is the tube connector 5b of straight tube-like, the central axis of standpipe 5a and the central axis conllinear of cylindrical shell 1, the lower wall of this standpipe 5a offers some outage 5a1s uniform along the circumference of standpipe 5a, and each outage 5a1 all faces with the inner chamber of lining 3.Tube connector 5b and cylindrical shell 1 seal fixing, and cylindrical shell 1 is stretched out in the outer end of tube connector 5b, and the inner of tube connector 5b is connected with standpipe 5a.
As shown in Figure 1, the internal diameter of lining 3 reduces downwards gradually, the inwall of cylindrical shell 1 has annular shoulder block 1b, the lateral wall of lining 3 has the annular convex shoulder 3a reclined mutually with annular shoulder block 1b upper surface, and annular convex shoulder 3a and annular shoulder block 1b seals fixing.In the present embodiment, annular convex shoulder 3a by welding mode and annular shoulder block 1b fix; Nature, annular shoulder block 1b is fixed by some screws and annular convex shoulder 3a and is also fine.As shown in Figure 2, the lower surface of annular convex shoulder 3a offers ringwise seal groove, and seal groove and annular convex shoulder 3a are coaxially arranged.Be provided with ringwise sealing gasket 27 in seal groove, and the both ends of the surface of sealing gasket 27 offset with the diapire of seal groove and the upper surface of annular shoulder block 1b respectively, to realize the object that annular shoulder block 1b and annular convex shoulder 3a is tightly connected.Further illustrate, the lower surface of annular convex shoulder 3a has the joint pin 3b protruded in direct rod shape, joint pin 3b has some and annularly the circumference of convex shoulder 3a is uniform.Annular shoulder block 1b is provided with through hole vertically, the quantity of through hole and position one_to_one corresponding identical with joint pin 3b.Every root joint pin 3b is all plugged in corresponding through hole, and sealing gasket 27 is between joint pin 3b and the inwall of cylindrical shell 1.By arranging joint pin 3b and through hole, good guide effect is played to the installation of lining 3, to make lining 3 more adequately can be installed to assigned address all the time, to improve the convenience of installing this dust-removing desulfurating apparatus.
Rain cap 4 upper end closed, lower ending opening, and the internal diameter of rain cap 4 increases downwards gradually.The upper end of this rain cap 4 is plugged in lining 3, and the upper end of air inlet pipe 2 is plugged in rain cap 4, and air inlet pipe 2 sidewall and end face and rain cap 4 inwall form exhaust passage.As shown in Figure 1, the lateral wall of lining 3 is fixed with the lateral wall of rain cap 4 by the brace 8 in lengthy motion picture shape, and the length of brace 8 extends along the axis of cylindrical shell 1.Brace 8 has 2 at least and circumference along cylindrical shell 1 is uniform, and in the present embodiment, preferred brace 8 is 2.
As shown in Figure 1, aiutage 6 is located at cylindrical shell 1 upper end and coaxial with cylindrical shell 1.Aiutage 6 comprises conically exhaust portion 6a and to be connected with exhaust portion 6a lower end and tubular connecting portion 6b, connecting portion 6b are set on cylindrical shell 1 and both fix; The internal diameter of exhaust portion 6a increases downwards gradually, and is provided with the hermetically-sealed construction making both connect sealing between connecting portion 6b and cylindrical shell 1.In the present embodiment, the lateral wall of cylindrical shell 1 offers annular groove, hermetically-sealed construction comprises the one 0 RunddichtringO 9 being positioned at annular groove, and the outer peripheral face of the one 0 RunddichtringO 9 and the madial wall of connecting portion 6b offset.
When this Novel dust removal devulcanizer is installed, the exhaust portion 6a on aiutage 6 is connected with air exhauster 10 by pipeline; Spray equipment 5 is connected with water pump can provide sufficient alkaline solution to spray equipment 5.During use, air exhauster 10 and water pump work simultaneously, and wherein, pump working is to inject alkaline solution to spray equipment 5, and then alkaline solution to be flow in lining 3 by outage 5a1 and axis along lining 3 flows down formation moisture film waterfall; Then, alkaline solution to flow on rain cap 4 outer surface and along the tapering dirty formation secondary moisture film waterfall of the outer surface of rain cap 4; The flue gas exported from boiler to be entered by the lower port of air inlet pipe 2 and to discharge from the upper port of this air inlet pipe 2, under the effect of air exhauster 10, flue gas can flow along the tapering of the inner surface of rain cap 4, and flowed out by the gap between rain cap 4 and lining 3 and lining 3 successively, and in above-mentioned process, flue gas contacts with a moisture film waterfall with secondary moisture film waterfall respectively and purifies, and effectively extends the time that flue gas contacts with alkaline solution, thus effectively improves dust-removal and desulfurizing effect.
Embodiment two
The present embodiment two with the structure of embodiment one and principle substantially identical, different place is: the lateral wall of cylindrical shell 1 has the sealing one protruded in the form of a ring, the lateral wall of connecting portion 6b has the sealing two protruded in the form of a ring, hermetically-sealed construction comprises and reclining and the sealing gasket one be fixed on the lower surface of sealing two, and the lower surface of sealing gasket one reclines mutually with sealing one.
Embodiment three
The present embodiment three with the structure of embodiment one and principle substantially identical, different place is: the lower surface of annular convex shoulder 3a has the Plug Division of cylindrically protruding, and Plug Division is coaxial with annular convex shoulder 3a.On annular shoulder block 1b, correspondence is provided with annular positioning groove, and Plug Division is plugged in annular positioning groove.The lateral wall of Plug Division offers annular slot, in shape draw-in groove, is provided with the 20 RunddichtringO, and the outer peripheral face of the 20 RunddichtringO and the madial wall of annular positioning groove offset.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (6)
1. a Novel dust removal devulcanizer, comprise the cylindrical shell of open top, the bottom of cylindrical shell is provided with sewage draining exit and is vertically fixed with the air inlet pipe be connected with cylinder lumen, spray equipment is provided with successively from top to bottom in cylindrical shell, lining and rain cap, lining and rain cap are all in coniform, and rain cap, lining, air inlet pipe, the central axis conllinear of cylindrical shell, described spray equipment has the outage faced with the inner chamber of lining, the upper end of described air inlet pipe is plugged in rain cap, it is characterized in that, the upper end of described cylindrical shell is arranged with aiutage, aiutage comprises conically exhaust portion and being connected and tubular connecting portion with exhaust portion lower end, described connecting portion is set on cylindrical shell and both fix, the internal diameter of described exhaust portion increases downwards gradually, the hermetically-sealed construction making both connect sealing is provided with between described connecting portion and cylindrical shell, the inwall of described cylindrical shell has annular shoulder block, the lateral wall of described lining has the annular convex shoulder reclined mutually with annular shoulder block upper surface, and annular convex shoulder and the sealing of annular shoulder block are fixed, the lateral wall of described lining by the brace of lengthy motion picture shape and the lateral wall of rain cap fix, and the length of brace extends along the axis of cylindrical shell, described brace has 2 at least and circumference along cylindrical shell is uniform.
2. Novel dust removal devulcanizer according to claim 1, it is characterized in that, the lateral wall of described cylindrical shell offers annular groove, described hermetically-sealed construction comprises the one 0 RunddichtringO being positioned at annular groove, and the outer peripheral face of the one 0 RunddichtringO and the madial wall of described connecting portion offset.
3. Novel dust removal devulcanizer according to claim 1, it is characterized in that, the lateral wall of described cylindrical shell has the sealing one protruded in the form of a ring, the lateral wall of described connecting portion has the sealing two protruded in the form of a ring, described hermetically-sealed construction comprises and reclining and the sealing gasket one be fixed on the lower surface of sealing two, and the lower surface of sealing gasket one reclines mutually with sealing one.
4. Novel dust removal devulcanizer according to claim 1, it is characterized in that, the lower surface of described annular convex shoulder offers ringwise seal groove, and seal groove and annular convex shoulder are coaxially arranged, be provided with ringwise sealing gasket two in described seal groove, and the both ends of the surface of sealing gasket two offset with the diapire of seal groove and the upper surface of annular shoulder block respectively.
5. Novel dust removal devulcanizer according to claim 1, it is characterized in that, the lower surface of described annular convex shoulder has the Plug Division of cylindrically protruding, and Plug Division is coaxial with annular convex shoulder, on described annular shoulder block, correspondence is provided with annular positioning groove, and described Plug Division is plugged in annular positioning groove, and the lateral wall of Plug Division offers annular slot, be provided with the 20 RunddichtringO in this annular slot, and the outer peripheral face of the 20 RunddichtringO and the madial wall of annular positioning groove offset.
6. Novel dust removal devulcanizer according to claim 4, it is characterized in that, the lower surface of described annular convex shoulder has the joint pin protruded in direct rod shape, joint pin has some and annularly the circumference of convex shoulder is uniform, described annular shoulder block is provided with through hole vertically, the quantity of through hole and position one_to_one corresponding identical with joint pin, and every root joint pin is all plugged in corresponding through hole, described cylindrical shell is cylindrical, and described sealing gasket two is between joint pin and the inwall of cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648566.5U CN204816207U (en) | 2015-08-26 | 2015-08-26 | Novel dust removing desulfurizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648566.5U CN204816207U (en) | 2015-08-26 | 2015-08-26 | Novel dust removing desulfurizer |
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| Publication Number | Publication Date |
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| CN204816207U true CN204816207U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520648566.5U Expired - Fee Related CN204816207U (en) | 2015-08-26 | 2015-08-26 | Novel dust removing desulfurizer |
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| CN (1) | CN204816207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772137A (en) * | 2019-03-04 | 2019-05-21 | 谢一中 | A kind of heat source furnace smoke dispersal, dust removal and desulphurization waste heat utilization equipment |
| CN113092176A (en) * | 2021-04-30 | 2021-07-09 | 玉环嘉言机械有限公司 | Sulfur-containing flue gas dust remover |
-
2015
- 2015-08-26 CN CN201520648566.5U patent/CN204816207U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772137A (en) * | 2019-03-04 | 2019-05-21 | 谢一中 | A kind of heat source furnace smoke dispersal, dust removal and desulphurization waste heat utilization equipment |
| WO2020177221A1 (en) * | 2019-03-04 | 2020-09-10 | 谢一中 | Flue gas removal, dust removal, sulfur removal and waste heat utilization device for heat source furnace |
| CN113092176A (en) * | 2021-04-30 | 2021-07-09 | 玉环嘉言机械有限公司 | Sulfur-containing flue gas dust remover |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160826 |