CN112013412B - Self-service cleaning device that rice husk suspension burning hot-blast furnace was used - Google Patents
Self-service cleaning device that rice husk suspension burning hot-blast furnace was used Download PDFInfo
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- CN112013412B CN112013412B CN202010770108.4A CN202010770108A CN112013412B CN 112013412 B CN112013412 B CN 112013412B CN 202010770108 A CN202010770108 A CN 202010770108A CN 112013412 B CN112013412 B CN 112013412B
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- bevel gear
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- shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/067—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
- F24H9/0042—Cleaning arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention relates to a self-service cleaning device for a rice hull suspension combustion hot blast stove, which comprises a shell, an ash receiving inverted plate and an auxiliary cleaning assembly, wherein the shell is vertically communicated, the ash receiving inverted plate is horizontally distributed in the shell, the middle part of the ash receiving inverted plate is hinged to the inner side wall of the shell, the auxiliary cleaning assembly is positioned below the ash receiving inverted plate and used for cleaning an ash receiving plate surface of the ash receiving inverted plate in a horizontal sliding mode, and a driving assembly for driving the ash receiving inverted plate and the auxiliary cleaning assembly to move in a matched mode is arranged on the outer wall of the shell; the ash receiving and dumping plate is connected with a self-locking assembly, and the self-locking assembly is connected with the driving assembly. According to the automatic ash removing device, the ash receiving inverted plate, the cleaning scraper, the self-locking assembly and the driving assembly are arranged, so that on the basis of an automatic ash removing function, ash adhered to the ash receiving plate surface of the ash receiving inverted plate after the ash is dumped every time can be cleaned and scraped, and the problems that the ash receiving inverted plate is long in service life and the cleaning efficiency is reduced due to excessive ash accumulation are effectively solved.
Description
Technical Field
The invention relates to the technical field of hot blast stoves, in particular to a self-service cleaning device for a rice husk suspension combustion hot blast stove.
Background
The hot blast stove is a thermal power machine, which generates high-temperature flue gas by burning combustible media in a combustion chamber, stores heat by a heat storage brick, and heats and sends out cold air after the heat storage brick is fully heated. The rice husk suspension combustion hot blast stove is a hot blast stove using rice husks as a combustion medium, the rice husks are conveyed by air through a pipeline and are directly conveyed into a hearth of the hot blast stove to be suspended and combusted in the hearth, so that the rice husks are fully combusted, and the rice husk suspension combustion hot blast stove is low in price, low in fuel cost and environment-friendly due to the fact that biomass fuels such as the rice husks and wood dust are adopted, and is widely applied.
However, the rice husk suspension combustion hot blast stove also has some problems: if the ash removing mode is still manual ash removal, manual cleaning is needed once every a period of time, so that labor cost and labor intensity are increased, the interval period exists in manual cleaning time, and once the time is too long, ash is accumulated too much to influence combustion effect. Although some existing rice hull suspension combustion hot blast stoves are internally provided with automatic ash removal devices, ash generated after biomass fuels such as rice hulls and wood chips have certain adhesion, so that the service life and the cleaning efficiency of the automatic ash removal devices are reduced.
Disclosure of Invention
In order to solve the technical problem, the invention provides a self-service cleaning device for a rice husk suspension combustion hot blast stove.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a self-service cleaning device for a rice hull suspension combustion hot blast stove comprises a shell, an ash receiving inverted plate and an auxiliary cleaning assembly, wherein the shell is vertically communicated, the ash receiving inverted plate is horizontally distributed in the shell, the middle part of the ash receiving inverted plate is hinged to the inner side wall of the shell, the auxiliary cleaning assembly is positioned below the ash receiving inverted plate and used for cleaning an ash receiving plate surface of the ash receiving inverted plate in a horizontal sliding mode, and the outer wall of the shell is provided with a driving assembly which drives the ash receiving inverted plate and the auxiliary cleaning assembly to move in a matched mode so that the ash receiving inverted plate can perform one-time cleaning operation on the ash receiving plate surface when the auxiliary cleaning assembly is turned for 180 degrees;
connect grey falling board and be connected with the auto-lock subassembly that is used for preventing to connect grey falling board horizontal hunting slope, the auto-lock subassembly is connected with drive assembly.
Furthermore, be equipped with on the inside wall of casing and be used for supplementary clearance subassembly to dodge and connect the ash and fall the groove of dodging of board upset.
Further, supplementary clearance subassembly is including corresponding lead screw and the guide bar that sets up in the groove of dodging of relative distribution, both ends correspond the clearance scraper blade that sets up on lead screw and guide bar and upper end clearance head department and connect grey fall board lower plate face to close, lead screw and drive assembly coaxial coupling.
Furthermore, the driving assembly comprises a first incomplete bevel gear and a second incomplete bevel gear which are coaxially connected, a first bevel gear meshed with the first incomplete bevel gear, and two second bevel gears which are correspondingly meshed with the second incomplete bevel gear and are oppositely distributed, the first bevel gear is coaxially connected with a middle hinging shaft of the ash receiving fall plate, the two second bevel gears are coaxially connected and are coaxially connected with the screw rod through a belt mechanism, and the first incomplete bevel gear and the second incomplete bevel gear are coaxially connected with a servo motor.
Furthermore, the first incomplete bevel gear is an incomplete bevel gear with a toothed part corresponding to a central angle of 90 degrees and two incomplete bevel gears are symmetrically distributed, and the second incomplete bevel gear is an incomplete bevel gear with a toothed part corresponding to a central angle of 90 degrees and one incomplete bevel gear is distributed.
Furthermore, the self-locking assembly comprises a positioning pin disc coaxially connected with a middle hinged shaft of the ash receiving falling plate, a symmetrical cam coaxially connected with a first incomplete bevel gear and a second incomplete bevel gear, a guide support arranged on the outer side wall of the shell, and a positioning pin which is slidably arranged on the guide support and is wound with a return spring, wherein one end part of the positioning pin is abutted against the circumferential end face of the symmetrical cam, and the other end part of the positioning pin is coaxially corresponding to a positioning pin hole in the positioning pin disc.
The beneficial effects of the invention are:
compared with the prior art, the automatic ash removing machine has the advantages that the ash receiving inverted plate, the cleaning scraper, the self-locking assembly and the driving assembly are arranged, so that on the basis of having the function of automatically removing ash, ash adhered to the surface of the ash receiving plate of the ash receiving inverted plate after the ash is poured every time can be cleaned and scraped, and the problems that the service life of the ash receiving inverted plate is prolonged and the cleaning efficiency is reduced due to excessive accumulation of the ash are effectively solved.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic external front view of the present invention;
FIG. 2 is a schematic view of the internal front view structure of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is an enlarged schematic view at I in FIG. 3;
fig. 5 is a schematic diagram of the left side view of the inside of the present invention.
In the figure: 1. a housing; 1a, avoiding grooves; 2. receiving ash and turning the plate; 3. a screw rod; 4. a guide bar; 5. cleaning a scraper; 6. positioning a pin disc; 61. a positioning pin hole; 7. a symmetrical cam; 8. a first incomplete bevel gear; 9. a second incomplete bevel gear; 10. a first bevel gear; 11. a second bevel gear; 12. a servo motor; 13. a belt mechanism; 14. a guide bracket; 15. positioning pins; 151. a return spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following by combining the attached drawings and the embodiments.
As shown in fig. 1 to 4, a self-service cleaning device for a rice hull suspension combustion hot blast stove comprises a shell 1 which is through from top to bottom, an ash receiving fall plate 2 which is horizontally distributed in the shell 1 and the middle part of which is hinged on the inner side wall of the shell 1, and an auxiliary cleaning assembly which is positioned below the ash receiving fall plate 2 and used for cleaning the ash receiving face of the ash receiving fall plate 2 in a horizontal sliding mode, wherein the outer wall of the shell 1 is provided with a driving assembly which drives the ash receiving fall plate 2 and the auxiliary cleaning assembly to move in a matching way, so that the ash receiving fall plate 2 is correspondingly cleaned once when being overturned by 180 degrees;
connect grey falling board 2 to be connected with and be used for preventing to connect the auto-lock subassembly of grey falling board 2 horizontal hunting slope, the auto-lock subassembly is connected with drive assembly.
As a further improvement of the invention, the shell 1 is of a vertically-through square cylindrical structure, after the shell is placed in the rice husk suspension combustion hot blast stove, a hearth of the rice husk suspension combustion hot blast stove is communicated with the upper part of the shell 1, and an ash collecting box of the rice husk suspension combustion hot blast stove is communicated with the lower part of the shell 1. The ash receiving fall plate 2 has the effects that on one hand, residual heat enters the hearth through the upper part, the residual heat is further utilized, resource waste is avoided, on the other hand, ash with the residual heat is naturally cooled, and the ash with the residual heat is prevented from directly entering the ash collecting box.
As a further improvement of the invention, an avoiding groove 1a for assisting the cleaning assembly to avoid the overturning of the ash receiving fall plate 2 is arranged on the inner side wall of the shell 1. Dodge groove 1a and be equipped with four, correspond respectively and distribute on four inside walls of casing 1, four dodge groove 1a and be in same horizontal plane.
Through the setting of dodging groove 1a, connect grey flitch 2 at the upset in-process, supplementary clearance subassembly can not cause the interference to it.
As a further improvement of the invention, the auxiliary cleaning assembly comprises a screw rod 3 and a guide rod 4 which are correspondingly arranged in the oppositely distributed avoidance grooves 1a, and a cleaning scraper 5, the two ends of which are correspondingly arranged on the screw rod 3 and the guide rod 4, the cleaning head part at the upper end of which is abutted against the lower plate surface of the ash receiving inverted plate 2, wherein the screw rod 3 is coaxially connected with the driving assembly.
Lead screw 3 and guide bar 4 correspond and set up in dodging groove 1a on the right side of casing 1, the left side inside wall, when clearance scraper blade 5 did not clear up the operation, be located the front side of casing 1 or the rear side inside wall on dodge in groove 1a. The cleaning scraper 5 is made of a high-temperature-resistant hard rubber material, and on the basis that the cleaning scraper is high-temperature-resistant and is not easy to deform by heating, the surface of the ash falling plate 2 cannot be scratched.
Connect grey flitch 2 180 backs of overturning at every turn, it connects grey face all can the below, promptly for connecing the lower face of grey flitch 2, and at this moment, lead screw 3 drives clearance scraper blade 5 through drive assembly's drive, and to drive from the front side toward the rear side or to connect the ashes of adhesion to scrape in order to dock grey flitch 2 on the grey face to clear up from the rear side toward front side horizontal migration.
As a further improvement of the invention, the driving component comprises a first incomplete bevel gear 8 and a second incomplete bevel gear 9 which are coaxially connected, a first bevel gear 10 meshed with the first incomplete bevel gear 8, and two second bevel gears 11 correspondingly meshed with the second incomplete bevel gear 9 and oppositely distributed, wherein the first bevel gear 10 is coaxially connected with a middle hinging shaft of the ash receiving inverted plate 2, the two second bevel gears 11 are coaxially connected and are coaxially connected with the screw rod 3 through a belt mechanism 13, and the first incomplete bevel gear 8 and the second incomplete bevel gear 9 are coaxially connected with a servo motor 12.
The first incomplete bevel gear 8 is meshed on the right side of the first bevel gear 10, the second incomplete bevel gear 9 is meshed on the left sides of the two second bevel gears 11, the first incomplete bevel gear 8 and the second incomplete bevel gear 9 are coaxially connected in the left-right direction, and the servo motor 12 is located on the left sides of the first incomplete bevel gear 8 and the second incomplete bevel gear 9 and fixed on the outer side wall of the shell 1 through a mounting seat. The two second bevel gears 11 are arranged in a front-back opposite manner.
The first incomplete bevel gear 8 is an incomplete bevel gear with a toothed part corresponding to a central angle of 90 degrees and two incomplete bevel gears are symmetrically distributed, and the second incomplete bevel gear 9 is an incomplete bevel gear with a toothed part corresponding to a central angle of 90 degrees and one incomplete bevel gear is distributed. When the first incomplete bevel gear 8 and the second incomplete bevel gear 9 are in transmission, the toothed parts on the two incomplete bevel gears cannot be overlapped in the axis direction, and the phenomenon that the dust receiving fall plate 2 and the cleaning scraper 5 operate simultaneously and movement interference occurs is avoided.
As a further improvement of the invention, the self-locking assembly comprises a positioning pin disc 6 coaxially connected with a middle hinging shaft of the ash receiving fall plate 2, a symmetrical cam 7 coaxially connected with a first incomplete bevel gear 8 and a second incomplete bevel gear 9, a guide bracket 14 arranged on the outer side wall of the shell 1, and a positioning pin 15 which is slidably arranged on the guide bracket 14 and is wound with a return spring 151, wherein one end part of the positioning pin 15 is abutted with the circumferential end surface of the symmetrical cam 7, and the other end part of the positioning pin 15 is coaxially corresponding to a positioning pin hole 61 on the positioning pin disc 6.
Two positioning pin holes 61 are correspondingly distributed on the positioning pin disc 6, and the distance difference between the position on the symmetrical cam 7 closest to the axis and the position on the symmetrical cam 7 farthest from the axis is the moving stroke of the positioning pin 15.
The return spring 151 is configured to always apply an elastic force to the positioning pin 15 in a direction away from the positioning pin hole 61, so that one end of the positioning pin 15 always abuts against the circumferential end surface of the symmetrical cam 7.
The central angles corresponding to the symmetrical convex parts on the symmetrical cam 7 are 90 degrees, and the convex parts symmetrically distributed on the symmetrical cam 7 are staggered with the toothed parts symmetrically distributed on the incomplete bevel gear 8 in the axial direction on the basis of requiring the symmetrical convex parts to be coaxial with the incomplete bevel gear 8I and the incomplete bevel gear 9 II when the symmetrical cam 7 is installed.
Through the reciprocal pushing that supports of symmetry cam 7 to locating pin 15 for locating pin 15 cooperates with locating pin hole 61 on the locating pin dish 6 intermittently, thereby makes to connect grey flitch 2 when not overturning, and butt joint grey flitch 2 carries out the circumference spacing, makes to connect grey flitch 2 to be in the horizontality all the time, can not control random swing, has guaranteed effectively to connect grey flitch 2's stability.
The working principle is as follows:
the invention is arranged in a rice hull suspension combustion hot blast stove, a hearth of the rice hull suspension combustion hot blast stove is communicated with the upper part of a shell 1, and an ash collecting box of the rice hull suspension combustion hot blast stove is communicated with the lower part of the shell 1. At the beginning, the ash receiving fall plate 2 is in a horizontal state, the cleaning scraper 5 is positioned in an avoidance groove 1a on the inner side wall of the front side of the shell, the first incomplete bevel gear 8 and the first bevel gear 10 are in a state of being meshed, and the second incomplete bevel gear 9 and the front and rear second bevel gears 11 are in a separated state.
The ash with waste heat after combustion in the rice husk suspension combustion hot blast stove falls onto the ash receiving fall plate 2, and after cooling, the servo motor 12 is started to drive the first incomplete bevel gear 8 and the second incomplete bevel gear 9 to synchronously rotate in the same direction. Firstly, a first incomplete bevel gear 8 is in meshing transmission with a first bevel gear 10, the ash receiving falling plate 2 is turned over by 180 degrees anticlockwise, and cooled ash is poured into the ash collecting box; at the moment, the ash receiving plate surface of the ash receiving fall plate 2 faces downwards, the first incomplete bevel gear 8 and the first bevel gear 10 are meshed and separated, and the second incomplete bevel gear 9 is meshed with the second bevel gear 11 on the front side; and then, the incomplete bevel gear 9 II is in meshing transmission with the second bevel gear 11 on the front side, and the screw rod 3 drives the cleaning scraper 5 to horizontally move from front to back to clean and scrape the ash adhered to the ash receiving plate surface of the ash receiving fall plate 2 through the second bevel gear 11 on the front side and the belt mechanism 13.
The first incomplete bevel gear 8 is again disengaged from the first bevel gear 10 to be engaged, and the second incomplete bevel gear 9 is disengaged from the second bevel gear 11 on the front side, and then, the above-described movement process is repeated; the difference is that when the incomplete bevel gear No. two 9 is meshed with the second bevel gear 11 again, the incomplete bevel gear No. two is meshed with the second bevel gear 11 at the rear side for transmission, the screw rod 3 rotates reversely through the belt mechanism 13, and the cleaning scraper 5 moves horizontally from back to front to clean and scrape the ash adhered to the ash receiving plate surface of the ash receiving fall plate 2.
The above-mentioned process of repetitious repetition can realize connecing grey fall board 2 to empty ashes back at every turn, and clearance scraper blade 5 all can dock grey fall board 2 and connect the grey face to carry out a clearance operation work for connect grey fall board 2 connect the grey face to be in clean state constantly, avoid the ashes adhesion to pile up, improved effectively and connect the life of grey fall board 2.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (1)
1. The utility model provides a self-service cleaning device that rice husk suspension burning hot-blast furnace was used which characterized in that: the cleaning device comprises a shell (1) which is vertically communicated, an ash receiving inverted plate (2) which is horizontally distributed in the shell (1) and the middle part of which is hinged on the inner side wall of the shell (1), and an auxiliary cleaning assembly which is positioned below the ash receiving inverted plate (2) and is used for cleaning the ash receiving surface of the ash receiving inverted plate (2) in a horizontal sliding mode, wherein the outer wall of the shell (1) is provided with a driving assembly which drives the ash receiving inverted plate (2) and the auxiliary cleaning assembly to move in a matched manner, so that the ash receiving inverted plate (2) can perform one-time cleaning operation on the ash receiving surface when being turned 180 degrees and the auxiliary cleaning assembly corresponds to each time;
the ash receiving pouring plate (2) is connected with a self-locking assembly for preventing the ash receiving pouring plate (2) from swinging and inclining left and right, and the self-locking assembly is connected with the driving assembly;
an avoidance groove (1 a) for assisting the cleaning assembly to avoid the turning of the ash receiving fall plate (2) is formed in the inner side wall of the shell (1);
the auxiliary cleaning assembly comprises a screw rod (3) and a guide rod (4) which are correspondingly arranged in the oppositely distributed avoidance grooves (1 a), and a cleaning scraper plate (5) of which two ends are correspondingly arranged on the screw rod (3) and the guide rod (4) and of which the upper end cleaning head part is abutted against the lower plate surface of the ash receiving inverted plate (2), and the screw rod (3) is coaxially connected with the driving assembly;
the driving assembly comprises a first incomplete bevel gear (8) and a second incomplete bevel gear (9) which are coaxially connected, a first bevel gear (10) meshed with the first incomplete bevel gear (8), and two second bevel gears (11) which are correspondingly meshed with the second incomplete bevel gear (9) and are oppositely distributed, the first bevel gear (10) is coaxially connected with a middle hinged shaft of the ash receiving fall plate (2), the two second bevel gears (11) are coaxially connected and are coaxially connected with the screw rod (3) through a belt mechanism (13), and the first incomplete bevel gear (8) and the second incomplete bevel gear (9) are coaxially connected with a servo motor (12);
the first incomplete bevel gear (8) is a toothed part which corresponds to a central angle of 90 degrees and is symmetrically distributed with two incomplete bevel gears, and the second incomplete bevel gear (9) is a toothed part which corresponds to a central angle of 90 degrees and is distributed with one incomplete bevel gear;
the self-locking assembly comprises a positioning pin disc (6) coaxially connected with a middle hinged shaft of the ash receiving falling plate (2), a symmetrical cam (7) coaxially connected with a first incomplete bevel gear (8) and a second incomplete bevel gear (9), a guide support (14) arranged on the outer side wall of the shell (1), and a positioning pin (15) which is slidably arranged on the guide support (14) and is wound with a reset spring (151), wherein one end part of the positioning pin (15) is abutted to the circumferential end face of the symmetrical cam (7), and the other end part of the positioning pin corresponds to a positioning pin hole (61) in the positioning pin disc (6) in a coaxial line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770108.4A CN112013412B (en) | 2020-08-04 | 2020-08-04 | Self-service cleaning device that rice husk suspension burning hot-blast furnace was used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010770108.4A CN112013412B (en) | 2020-08-04 | 2020-08-04 | Self-service cleaning device that rice husk suspension burning hot-blast furnace was used |
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| Publication Number | Publication Date |
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| CN112013412A CN112013412A (en) | 2020-12-01 |
| CN112013412B true CN112013412B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010770108.4A Active CN112013412B (en) | 2020-08-04 | 2020-08-04 | Self-service cleaning device that rice husk suspension burning hot-blast furnace was used |
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| CN (1) | CN112013412B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH390445A (en) * | 1961-01-27 | 1965-04-15 | Stamicarbon | Solid fuel heater |
| CN107965797A (en) * | 2017-12-22 | 2018-04-27 | 云南聚诚科技有限公司 | A kind of family expenses wood stove for automatically removing ashes |
| CN108644760A (en) * | 2018-07-15 | 2018-10-12 | 刘雪城 | A kind of energy saving coal burning boiler |
| CN209386831U (en) * | 2018-12-04 | 2019-09-13 | 上海固类特企业管理有限责任公司 | The double acting deashing device of low temperature magnetization fixed-end forces furnace |
| CN209564902U (en) * | 2019-02-26 | 2019-11-01 | 安徽丹凤电子材料股份有限公司 | A kind of blender of easy cleaning |
| CN209905784U (en) * | 2019-03-11 | 2020-01-07 | 中冶焦耐(大连)工程技术有限公司 | Ash removal device for head of belt conveyor |
| CN110360585B (en) * | 2019-08-22 | 2021-04-02 | 福州卓能科技有限公司 | Circulating fluidized bed boiler combustion chamber assists deashing structure |
| CN111203014A (en) * | 2020-01-16 | 2020-05-29 | 徐卫 | Sewage treatment filters edulcoration device |
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2020
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