CN110975445A - Dust remover with waste heat recovery function - Google Patents
Dust remover with waste heat recovery function Download PDFInfo
- Publication number
- CN110975445A CN110975445A CN201911331934.2A CN201911331934A CN110975445A CN 110975445 A CN110975445 A CN 110975445A CN 201911331934 A CN201911331934 A CN 201911331934A CN 110975445 A CN110975445 A CN 110975445A
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- dust
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- compressed air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- 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
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to a dust collector for recovering waste heat, which belongs to the technical field of dust collection and comprises a dust collection box body, a base, a dust collection hopper, a cloth bag and a compressed air bag, wherein in order to continuously perform dust removal treatment on the cloth bag, a compressed air bag and an electromagnetic pulse valve are arranged in the dust remover, the electromagnetic pulse valve controls the paint spraying frequency of the compressed air bag, the compressed air is easy to have the dewing phenomenon when being sprayed out in the compressed air bag, when the dust air containing heat is purified by the invention, the invention collects the heat in the air containing heat by the heat exchange device, and the heat is transferred to the compressed air bag to heat the compressed air bag, so that the temperature of the air in the compressed air bag is increased, and condensed water is not generated when the compressed air is sprayed out, thereby effectively avoiding the occurrence of the condensation phenomenon in the invention, preventing the cloth bag from being soaked and blocked and improving the working efficiency.
Description
Technical Field
The invention belongs to the technical field of dust removal, and particularly relates to a dust remover for waste heat recovery.
Background
The bag-type dust collector is a dry dust filtering device, which is suitable for collecting fine, dry and non-fibrous dust, the bag is made of woven filter cloth or non-woven felt, the filtering action of fiber fabric is utilized to filter the dust-containing gas, the bag-type dust collector has high dust collecting efficiency, can collect the fine dust with the particle size larger than 0.3 micron, the dust collecting efficiency can reach more than 99 percent, the bag-type dust collector is flexible to use, simple in structure, stable to operate, low in initial investment, convenient to maintain, free from the advantages of sewage treatment or slurry treatment and the like, and is widely applied to dust collection of a smoke exhaust pipe of a biomass boiler, but in the actual use process, in order to facilitate the surface-entering dust collection treatment of the bag, a compressed gas bag and an electromagnetic pulse valve are often arranged in the dust collector, the bag-type dust collector is cleaned by utilizing the air stored in the compressed gas bag, and the electromagnetic pulse, as is well known, when compressed air is released to the outside of a compressed air bag (under standard atmospheric pressure), the compressed air absorbs a large amount of heat when acting on the outside due to the instantaneous increase of the air volume, so that the phenomenon of water vapor condensation is easily caused, and the generated water drops on a cloth bag to easily block the cloth bag, thereby affecting the dust removal efficiency of the dust remover.
Disclosure of Invention
In view of the problems in the background, it is an object of the present invention to provide a dust collector for waste heat recovery.
In order to achieve the purpose, the invention provides a dust collector for waste heat recovery, which comprises a dust collection box body, a base, a dust collection hopper, a cloth bag and a compressed air bag, wherein the dust collection hopper is arranged at the bottom of the dust collection box body, the dust collection box body is arranged on the base, the cloth bag and the compressed air bag are both arranged in the dust collection box body, the outer side wall of the dust collection box body is provided with an air inlet and an air outlet, the air outlet is arranged above the air inlet, the dust collection box body and the dust collection hopper are mutually communicated, one end of the compressed air bag is provided with an air ejector, the air ejector is arranged above the air ejector relative to the cloth bag, the air inlet is provided with a first coil pipe for heat exchange, the first coil pipe is provided with a liquid inlet and a liquid outlet, the periphery of the compressed air bag is provided with a, the second coil pipe is provided with a liquid inlet and a liquid outlet, the liquid outlet of the first coil pipe is connected with the liquid inlet of the second coil pipe through a water supply pipe, the liquid outlet of the second coil pipe is connected with the liquid inlet of the first coil pipe through a water return pipe, a water pump is arranged on the water supply pipe, and cooling liquid is arranged in the water return pipe and the water supply pipe.
In order to dehumidify air entering the interior of the dehumidifying cabinet and reduce the humidity of the interior of the dehumidifying cabinet, a filter pipe is arranged on the inner wall of the cabinet body opposite to the air inlet, a first dehumidifying layer and a second dehumidifying layer are arranged in the filter pipe, and a partition plate is arranged between the first dehumidifying layer and the second dehumidifying layer.
Also preferably, in order to increase the dehumidification effect of the filter pipe, soda lime is arranged in the first dehumidification layer.
Furthermore, in order to further increase the dehumidification effect of the filter pipe, activated carbon is arranged in the second dehumidification layer.
In order to increase the stability of the cloth bag in the dust removal box and prevent the cloth bag from being compressed by passing air, and further improve the dust removal effect of the dust removal box, a fixing plate is arranged in the dust removal box, the peripheral edge of the fixing plate is mutually connected with the inner side wall of the dust removal box, the fixing plate is provided with a mounting hole, a support cage for supporting the cloth bag is arranged in the mounting hole, a fixing ring which is matched with the mounting hole and used for limiting the support cage and the fixing plate to be mutually separated is arranged at the top of the support cage, and the cloth bag is sleeved on the support cage.
In order to prevent outside air from reversely flowing into the dust removal box from the air outlet and further adversely affecting the dust removal effect of the dust removal box, the air outlet is provided with a one-way valve for preventing the outside air from entering the dust removal box.
Compared with the prior art, the invention has the beneficial effects that: the dust collector for waste heat recovery comprises a dust collection box body, a base, a dust collection hopper, a cloth bag and a compressed air bag, wherein the dust collection hopper is arranged at the bottom of the dust collection box body, the dust collection box body is arranged on the base, the cloth bag and the compressed air bag are both arranged in the dust collection box body, the outer side wall of the dust collection box body is provided with an air inlet and an air outlet, the air outlet is arranged above the air inlet, the dust collection box body and the dust collection hopper are communicated with each other, one end of the compressed air bag is provided with an air ejector pipe, the air ejector pipe is provided with an air nozzle above the cloth bag, the air inlet is provided with a first coil pipe for heat exchange, the first coil pipe is provided with a liquid inlet and a liquid outlet, the periphery of the compressed air bag is provided with a second coil pipe which is matched with the compressed air bag, the liquid outlet of the first coil pipe is connected with the liquid inlet of the second coil pipe through a water supply pipe, the liquid outlet of the second coil pipe is connected with the liquid inlet of the first coil pipe through a water return pipe, a water pump is arranged on the water supply pipe, cooling liquid is arranged in the water return pipe and the water supply pipe, as is known, a cloth bag type dust collector needs to continuously carry out dust cleaning treatment on a cloth bag, the dust cleaning method is to arrange a compressed air bag and an electromagnetic pulse valve in the dust collector, the electromagnetic pulse valve controls the paint spraying frequency of the compressed air bag, when the compressed air is sprayed out in the compressed air bag, the pressure intensity is instantly reduced to the standard atmospheric pressure, the volume is increased, a large amount of heat is absorbed from the surrounding air, the temperature of the surrounding air is suddenly reduced, so that water vapor in the surrounding air is easily condensed to form water drops, and, according to the invention, heat in air containing heat is collected by the heat exchange device, and the heat is transferred to the compressed air bag to heat the compressed air bag, so that the temperature of the air in the compressed air bag is raised, and no condensed water is generated when the compressed air is sprayed out, thereby effectively avoiding the phenomenon of condensation inside the air bag, preventing the cloth bag from being soaked and blocked, and improving the working efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of a filter tube of the present invention.
Fig. 3 is a schematic structural view of the connection between the support cage and the fixing plate according to the present invention.
In the drawings, the reference numbers: 1. a dust removal box body; 2. a base; 3. a dust collecting hopper; 4. a cloth bag; 5. compressing the air bag; 6. an air inlet; 7. an air outlet; 8. a gas ejector tube; 9. an air nozzle; 10. a first coil pipe; 11. a second coiled tube; 12. a water supply pipe; 13. a water return pipe; 14. a water pump; 15. cooling liquid; 16. a filter tube; 17. a first desiccant layer; 18. a second desiccant layer; 19. a partition plate; 20. soda lime; 21. activated carbon; 22. a fixing plate; 23. mounting holes; 24. a support cage; 25. a fixing ring; 26. a one-way valve.
Detailed Description
In order that the technical solutions of the present invention will be more apparent, the present invention is further described in detail with reference to the following examples, it should be understood that the specific embodiments described herein are only for the purpose of illustrating the present invention, and are not to be construed as limiting the present invention.
Referring to the attached drawings 1-3, the dust collector for waste heat recovery of the invention comprises a dust collection box body 1, a base 2, a dust collection hopper 3, a cloth bag 4 and a compressed air bag 5, wherein the dust collection hopper 3 is arranged at the bottom of the dust collection box body 1, the dust collection box body 1 is arranged on the base 2, the cloth bag 4 and the compressed air bag 5 are both arranged in the dust collection box body 1, the outer side wall of the dust collection box body 1 is provided with an air inlet 6 and an air outlet 7, the air outlet 7 is arranged above the air inlet 6, the dust collection box body 1 and the dust collection hopper 3 are communicated with each other, the dust collector is characterized in that one end of the compressed air bag 5 is provided with an air jet pipe 8, the air jet pipe 8 is provided with an air nozzle 9 above the cloth bag 4, the air inlet 6 is provided with a first coil pipe 10 for heat exchange, the periphery of the compressed air bag 5 is provided with a second coil pipe 11 which is matched with the compressed air bag 5 for heat exchange, the second coil pipe 11 is provided with a liquid inlet and a liquid outlet, the liquid outlet of the first coil pipe 10 is mutually connected with the liquid inlet of the second coil pipe 11 through a water supply pipe 12, the liquid outlet of the second coil pipe 11 is mutually connected with the liquid inlet of the first coil pipe 10 through a water return pipe 13, the water supply pipe 12 is provided with a water pump 14, the water return pipe 13 and the water supply pipe 12 are internally provided with cooling liquid 15, when air containing heat and dust is purified by the dust removing device, when the air passes through the cloth bag 4 at the bottom of the fixing plate 22, the dust is adsorbed on the outer surface of the cloth bag 4, the air smoothly passes through the cloth bag 4, the air is purified, along with the continuous accumulation of the dust on the cloth bag 4, the dust removing treatment is needed, usually, a compressed air bag 5 and, the electromagnetic pulse valve controls the air injection frequency of the compressed air bag 5, when compressed air in the compressed air bag 5 is sprayed out, the pressure intensity is instantly reduced to the standard atmospheric pressure, the volume is also increased suddenly, a large amount of heat is absorbed from surrounding air, water vapor in the surrounding air is easily condensed to form water drops to be dripped onto the cloth bag 4, adhesion or even blocking of the cloth bag 4 is further caused, the first coil pipe 10 is arranged at the air inlet 6, the second coil pipe 11 is arranged at the periphery of the compressed air bag 5, a water supply pipe 12 and a water return pipe 13 are respectively arranged between the first coil pipe 10 and the second coil pipe 11, the heat in the hot air is collected by the first coil pipe 10, the heat is transferred to the second coil pipe 11, the compressed air bag 5 is further heated, the temperature of the air in the compressed air bag 5 is increased, and the phenomenon of condensation generated in the air injection process can be effectively avoided.
Preferably, a filter pipe 16 is arranged on the inner wall of the box body opposite to the air inlet 6, a first dehumidification layer 17 and a second dehumidification layer 18 are arranged in the filter pipe 16, a partition plate 19 is arranged between the first dehumidification layer 17 and the second dehumidification layer 18, and two dehumidification layers are arranged in the filter pipe 16, so that moisture in hot air can be filtered, the humidity of the hot air is obviously reduced, the humidity of the air in the box body is further reduced, and when the compressed air bag 5 is used for injecting air, the condensation phenomenon is less prone to occurring.
Preferably, soda lime 20 is arranged in the first dehumidification layer 17, activated carbon 21 is arranged in the second dehumidification layer 18, and materials which are very easy to absorb water, such as the soda lime 20 and the activated carbon 21, are arranged, so that the humidity of the passing air can be effectively reduced.
Preferably, a fixing plate 22 is arranged in the dust removing box body 1, the peripheral edge of the fixing plate 22 is connected with the inner side wall of the dust removing box body 1, the fixing plate 22 is provided with a mounting hole 23, a supporting cage 24 for supporting the cloth bag 4 is arranged in the mounting hole 23, a fixing ring 25 which is matched with the mounting hole 23 and used for limiting the mutual separation of the supporting cage 24 and the fixing plate 22 is arranged at the top of the supporting cage 24, the cloth bag 4 is sleeved on the supporting cage 24, when air is subjected to dust removing treatment through the cloth bag 4, the cloth bag 4 is easily crushed, the air circulation is not smooth, the arrangement of the supporting cage 24 can prevent the cloth bag 4 from being crushed, and the air is smooth, so that the dust removing efficiency of the dust removing device is improved.
Preferably, the air outlet 7 is provided with a one-way valve 26 for preventing outside air from entering the dust removal box body 1, the dust removal efficiency of the dust removal box body is seriously affected if outside air is reversely filled into the dust removal box body from the air outlet 7, and the one-way valve 26 can effectively prevent outside air from being reversely filled into the dust removal box body from the air outlet 7.
The working process of the invention is as follows: when a user uses the air dust removal device to remove dust from air, before hot air containing dust enters the air dust removal device through the air inlet 6, heat in the hot air is transferred to the first coil pipe 10, the cooling liquid 15 in the first coil pipe 10 is heated, the heated cooling liquid 15 flows from the liquid outlet of the first coil pipe 10 to the second coil pipe 11 through the water supply pipe 12 under the action of the water pump 14, the second coil pipe 11 is tightly attached to the compressed air bag, at the moment, the cooling liquid 15 transfers heat to the compressed air bag 5, the air in the compressed air bag 5 is heated, the cooling liquid 15 releasing heat flows back to the first coil pipe 10 from the water return pipe 13 through the liquid outlet of the second coil pipe 11, the cooled air containing dust continuously passes through the filter pipe 16, wherein most of moisture is adsorbed by soda lime 20 and activated carbon 21, the dried air is sent to the cloth bag 4 to rise, and the dust in the air is adsorbed by the outer surface of the cloth bag 4, purified air smoothly passes through the cloth bag 4 and is discharged to the outside of the dust removing device through the one-way valve 26 from the air outlet 7, when excessive dust is accumulated on the surface of the cloth bag 4, the compressed air bag is opened by the electromagnetic pulse valve at a certain frequency, so that the air in the compressed air bag sprays air against the opening of the cloth bag 4 to clean the dust on the outer surface of the cloth bag 4, if the air in the compressed air bag 5 is not heated, the pressure of the compressed air is instantly reduced to standard atmospheric pressure when the compressed air is sprayed out, the volume is rapidly expanded, a large amount of heat is absorbed from the surrounding air, the phenomenon of condensation of the surrounding air is easily caused, water drops are accumulated and dripped to the cloth bag 4 to cause adhesion and even blockage of the cloth bag 4, the dust removing efficiency of the dust removing device is influenced, the temperature of the compressed air is increased by heating the air in the compressed air bag 5 by the dust removing device, when the, the heat can not be absorbed from the surrounding air, the condensation phenomenon is avoided, the blockage phenomenon of the cloth bag 4 is further avoided, and the dust removal efficiency of the dust remover is improved.
The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.
In the description herein, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. In the description herein, it is to be noted that, unless expressly stated or limited otherwise, the terms "connected" and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection may be mechanical or electrical, and may be direct or indirect via an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. A dust remover for recovering waste heat comprises a dust removing box body (1), a base (2), a dust collecting hopper (3), a cloth bag (4) and a compressed air bag (5), wherein the dust collecting hopper (3) is arranged at the bottom of the dust removing box body (1), the dust removing box body (1) is arranged on the base (2), the cloth bag (4) and the compressed air bag (5) are both arranged in the dust removing box body (1), the outer side wall of the dust removing box body (1) is provided with an air inlet (6) and an air outlet (7), the air outlet (7) is arranged above the air inlet (6), the dust removing box body (1) and the dust collecting hopper (3) are communicated with each other, the dust remover is characterized in that one end of the compressed air bag (5) is provided with an air jet pipe (8), an air jet nozzle (9) is arranged above the air jet pipe (8) relative to the cloth bag (4), a first coil pipe (10) for heat exchange is arranged at, first coil pipe (10) are provided with inlet and liquid outlet, and the periphery of compressed gas package (5) is provided with and is used for taking place heat exchange second coil pipe (11) with compressed gas package (5) mutual matching, second coil pipe (11) are provided with inlet and liquid outlet, and the liquid outlet of first coil pipe (10) passes through the inlet interconnect of delivery pipe (12) and second coil pipe (11), and the liquid outlet of second coil pipe (11) passes through the inlet interconnect of wet return (13) and first coil pipe (10), be provided with water pump (14) on delivery pipe (12), be provided with coolant liquid (15) in wet return (13) and delivery pipe (12).
2. A dust remover for recovering waste heat according to claim 1, wherein a filter pipe (16) is arranged on the inner wall of the box body opposite to the air inlet (6), a first dehumidification layer (17) and a second dehumidification layer (18) are arranged in the filter pipe (16), and a partition plate (19) is arranged between the first dehumidification layer (17) and the second dehumidification layer (18).
3. A dust separator for recovering waste heat according to claim 2, characterized in that soda lime (20) is provided in the first dehumidifying layer (17).
4. A dust separator for recovering waste heat according to claim 2, characterized in that activated carbon (21) is arranged in the second dehumidification layer (18).
5. The dust collector for waste heat recovery according to claim 1, wherein a fixing plate (22) is arranged in the dust collection box body (1), the peripheral edge of the fixing plate (22) is connected with the inner side wall of the dust collection box body (1), the fixing plate (22) is provided with a mounting hole (23), a support cage (24) for supporting the cloth bag (4) is arranged in the mounting hole (23), a fixing ring (25) which is matched with the mounting hole (23) and limits the support cage (24) and the fixing plate (22) to be separated from each other is arranged at the top of the support cage (24), and the cloth bag (4) is sleeved on the support cage (24).
6. A waste heat recovery dust collector as claimed in any one of claims 1-5, characterized in that the air outlet (7) is provided with a one-way valve (26) preventing outside air from entering the dust collecting tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331934.2A CN110975445A (en) | 2019-12-21 | 2019-12-21 | Dust remover with waste heat recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911331934.2A CN110975445A (en) | 2019-12-21 | 2019-12-21 | Dust remover with waste heat recovery function |
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| Publication Number | Publication Date |
|---|---|
| CN110975445A true CN110975445A (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911331934.2A Pending CN110975445A (en) | 2019-12-21 | 2019-12-21 | Dust remover with waste heat recovery function |
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| Country | Link |
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| CN (1) | CN110975445A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571042A (en) * | 2023-05-15 | 2023-08-11 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203231327U (en) * | 2013-04-18 | 2013-10-09 | 熊英莹 | Smoke heat exchanging system |
| CN204093249U (en) * | 2014-08-25 | 2015-01-14 | 安徽扬子化工有限公司 | A kind of industrial waste gas filtered communication tank |
| CN204768112U (en) * | 2015-05-29 | 2015-11-18 | 广东龙正节能环保科技有限公司 | Biomass boiler sack cleaner with dehydrating unit |
| KR20180106721A (en) * | 2017-03-21 | 2018-10-01 | 주식회사 포스코건설 | Apparatus for dry filtering and dust collecting blast furnace gas with bag filter |
| CN209752499U (en) * | 2019-02-23 | 2019-12-10 | 所德（厦门）环境工程有限公司 | Improved structure for dewing and corrosion prevention of dust remover |
-
2019
- 2019-12-21 CN CN201911331934.2A patent/CN110975445A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203231327U (en) * | 2013-04-18 | 2013-10-09 | 熊英莹 | Smoke heat exchanging system |
| CN204093249U (en) * | 2014-08-25 | 2015-01-14 | 安徽扬子化工有限公司 | A kind of industrial waste gas filtered communication tank |
| CN204768112U (en) * | 2015-05-29 | 2015-11-18 | 广东龙正节能环保科技有限公司 | Biomass boiler sack cleaner with dehydrating unit |
| KR20180106721A (en) * | 2017-03-21 | 2018-10-01 | 주식회사 포스코건설 | Apparatus for dry filtering and dust collecting blast furnace gas with bag filter |
| CN209752499U (en) * | 2019-02-23 | 2019-12-10 | 所德（厦门）环境工程有限公司 | Improved structure for dewing and corrosion prevention of dust remover |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571042A (en) * | 2023-05-15 | 2023-08-11 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
| CN116571042B (en) * | 2023-05-15 | 2023-10-31 | 徐州徐工养护机械有限公司 | Stirring dust collecting equipment of pitch regeneration factory |
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Application publication date: 20200410 |