CN112624444A - City landfill leachate multistage processing apparatus - Google Patents
City landfill leachate multistage processing apparatus Download PDFInfo
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- CN112624444A CN112624444A CN202110252586.0A CN202110252586A CN112624444A CN 112624444 A CN112624444 A CN 112624444A CN 202110252586 A CN202110252586 A CN 202110252586A CN 112624444 A CN112624444 A CN 112624444A
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- water tank
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- fixed mounting
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
The utility model provides a municipal refuse filtration liquid multistage processing apparatus, including confined water tank, water tank top surface fixed mounting has the stirring pond, through connection has the inlet tube between stirring pond and the water tank, water tank inner chamber one side is rotated and is installed the axis of ordinates, both sides fixed mounting respectively have the plectane of coaxial line around the axis of ordinates periphery, water tank inner chamber opposite side then is equipped with turns over the board, turn over the board bottom surface and keep away from plectane one side fixed mounting and have articulated seat, both ends correspond inner wall fixed connection with the water tank respectively around the pivot of articulated seat inside, both sides fixed mounting respectively have the riser around turning over the board, it is equipped with the squeeze roll to turn over the. The invention can automatically clean the filter screen to realize the automatic deslagging function, and can also carry out extrusion dehydration treatment on the filtered floccule, thereby reducing the labor amount of subsequent treatment of the floccule.
Description
Technical Field
The invention belongs to the field of garbage leachate sewage treatment, and particularly relates to a multistage treatment device for urban garbage leachate.
Background
Landfill leachate need pass through coarse filtration solid particle when handling-add flocculating agent separation heavy metal-the stirring mixes with higher speed the coagulation reaction-multilevel processing such as filtration separation flocculus, and in the aspect of the flocculus is filtered, current filter screen can block up very fast when in actual use, needs manual work or machine to scrape at any time and sweeps, and in addition, the flocculus of filtering off can absorb a large amount of sewage, still need carry out secondary extrusion drainage and handle, has increased sewage treatment's complexity.
Disclosure of Invention
The invention provides a multistage treatment device for urban landfill leachate, which is used for overcoming the defects in the prior art.
The invention is realized by the following technical scheme:
a multistage treatment device for municipal landfill leachate comprises a closed water tank, wherein a stirring tank is fixedly arranged on the top surface of the water tank, a water inlet pipe is communicated and connected between the stirring tank and the water tank, a longitudinal shaft is rotatably arranged on one side of an inner cavity of the water tank, coaxial circular plates are fixedly arranged on the front side and the rear side of the periphery of the longitudinal shaft respectively, a turning plate is arranged on the other side of the inner cavity of the water tank, a hinged seat is fixedly arranged on the bottom surface of the turning plate away from one side of the circular plates, the front end and the rear end of a rotating shaft in the hinged seat are fixedly connected with corresponding inner walls of the water tank respectively, vertical plates are fixedly arranged on the front side and the rear side of the turning plate respectively, extrusion rollers are arranged on the top surface of the turning plate, the front end and the rear end of the extrusion rollers are connected with corresponding vertical plate bearings respectively, a first arc-shaped, teeth are respectively arranged on the peripheries of the circular plates, the second arc-shaped racks are respectively meshed with the peripheries of the corresponding circular plates, a filter screen is fixedly arranged between the two circular plates and close to one side of the turning plate, one side of the filter screen is fixedly connected with the periphery of the longitudinal shaft, the other side of the filter screen is flush with the edge of the circular plate, a scraper blade is arranged above the filter screen, the front end and the rear end of the scraper blade are respectively connected with the corresponding circular plates in a sliding manner, a brush roller is fixedly arranged at the lower end of the scraper blade through a shaft seat, a straight rack is fixedly arranged in front of the circular plate at the rear side, a second gear is fixedly arranged on a roller shaft at the rear end of the brush roller, the top surface of the second gear is meshed with the straight rack, a water storage tank is fixedly arranged between the two circular, the lower part of the inner side of the circular plate is respectively and fixedly provided with a balancing weight, one side of the bottom of the water tank is fixedly provided with a water outlet pipe, and one side of the water tank, which is close to the turning plate, is provided with a slag discharge hole.
According to the urban garbage leachate multistage treatment device, the inner wall of the water tank close to one side of the circular plate is fixedly provided with the stop dog, and the bottom of the inner cavity of the water tank close to one side of the turning plate is fixedly provided with the support.
As above, the urban garbage leachate multistage treatment device is characterized in that sliding blocks are fixedly mounted on the front side and the rear side of the scraper respectively, sliding grooves are formed in the inner sides of the circular plates respectively, the sliding blocks are in sliding fit with the corresponding sliding grooves respectively, a first rope roller is rotatably connected to the front side of the rear circular plate through a rotating shaft with a torsional spring and is located on one side, facing the water storage tank, of the scraper, a first rope is fixedly connected between the first rope roller and the scraper, part of the first rope is wound on the periphery of the first rope roller, a belt wheel is mounted on the back face bearing of the inner cavity of the water tank, a third gear is fixedly connected to the front side of the belt wheel and is meshed with the periphery of the rear circular plate, a second rope roller is mounted on the back face bearing of the inner cavity of the water tank and is located above the turning plate, the same belt wheel is mounted on the back face of the.
According to the multistage treatment device for the municipal refuse leachate, the turnover plate and the vertical plate are respectively provided with the plurality of through holes, and the through holes are uniformly distributed in the area close to the extrusion roller.
According to the multistage treatment device for the municipal refuse leachate, one end of the water receiving pipe is communicated with the inner cavity of the water storage tank, and the other end of the water receiving pipe is upwards opened and is fixedly provided with the outwards-expanded bell mouth.
The invention has the advantages that: when the device is used, a user injects sewage added with a flocculating agent into the stirring pool to stir and promote reaction, partial dirt in the sewage reacts with the flocculating agent to produce a large amount of floccules, then the sewage is sent into the water tank through the water inlet pipe, for example, as shown in figure 2, when the water tank is not water, the circular plate rotates clockwise under the pulling of the balancing weight, the turning plate meshed with the circular plate through the second arc-shaped rack also rotates downwards, the scraper plate slides rightwards under the action of gravity, the brush roller rotates anticlockwise under the driving of the straight rack in the sliding process of the scraper plate, the floccules on the surface of the filter screen are brushed to the right side, the floccules fall on the top surface of the turning plate, at the moment, the water receiving pipe rotates to the lower part of the water inlet pipe, the sewage falling from the water inlet pipe is injected into the water tank, after the water tank is filled with the sewage, the gravity center of the, at this time, taking fig. 1 as an example, the scraper originally moved to the right side slides leftwards again to recover the original position, sewage falling from the water inlet pipe directly falls on the filter screen for filtration, the filtered sewage flows from the water outlet pipe to the lower-order treatment device, the turning plate is driven by the second arc-shaped rack to turn upwards and tilt, the first gear is driven by the first arc-shaped rack to rotate anticlockwise in the tilting process, so as to drive the squeezing roller to rotate anticlockwise, the squeezing roller can squeeze floccule while pushing the floccule to be discharged to the slag discharge hole along the top surface of the turning plate, so as to squeeze out the sewage in the floccule, so as to reduce the water content of the floccule, a user needs to place a proper container or feeding device below the slag discharge hole, meanwhile, the sewage in the water storage tank can be slowly discharged to the filter screen through the guide pipe, when the sewage in the water storage tank falls to a certain degree, the gravity center of the circular plate shifts to one side of the balancing weight, thereby repeating the above-described actions; the invention can automatically clean the filter screen and realize the automatic deslagging function on one hand, and can also carry out extrusion dehydration treatment on the filtered floccule on the other hand, thereby reducing the labor amount of subsequent treatment of the floccule, realizing the function of the whole device completely by means of ingenious gravity center transfer and separation without any external power, having the advantages of energy saving, environmental protection and low manufacturing cost, and being suitable for popularization in the field of multistage treatment of landfill leachate and sewage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic view of the slag discharge state of the present invention; FIG. 3 is an enlarged view of the view A of FIG. 2; fig. 4 is an enlarged view of part i of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A multistage treatment device for municipal landfill leachate is shown in figure 1 and comprises a closed water tank 1, wherein a stirring tank 11 is fixedly arranged on the top surface of the water tank 1, the stirring tank is the prior mature technology, the specific structure is not repeated herein, a water inlet pipe 12 is communicated and connected between the stirring tank 11 and the water tank, a longitudinal shaft 2 is rotatably arranged on one side of an inner cavity of the water tank 1, the front end and the rear end of the longitudinal shaft 2 are respectively linked with an inner wall bearing corresponding to the water tank 1, coaxial circular plates 21 are respectively and fixedly arranged on the front side and the rear side of the periphery of the longitudinal shaft 2, a turning plate 3 is arranged on the other side of the inner cavity of the water tank 1, a hinged seat 31 is fixedly arranged on the bottom surface of the turning plate 3 far away from the circular plate 21, the front end and the rear end of a rotating shaft in the hinged seat 31 are, the top surface of the turning plate 3 is provided with an extrusion roller 4, the front end and the rear end of the extrusion roller 4 are respectively connected with a corresponding vertical plate 32 through bearings, the inner wall of the rear side of the water tank 1 is fixedly provided with a first arc-shaped rack 41, the first arc-shaped rack 41 is coaxial with the hinged seat, a rear end roller shaft of the extrusion roller 4 penetrates through the rear vertical plate 32 and is fixedly provided with a first gear 42, the first gear 42 is meshed with the first arc-shaped rack 41, one side of the vertical plate 32 close to the circular plate 21 is respectively and fixedly provided with a second arc-shaped rack 33, the periphery of the circular plate 21 is respectively provided with teeth, the second arc-shaped rack 33 is respectively meshed with the periphery of the corresponding circular plate 32, a filter screen 5 is fixedly arranged between the two circular plates 21 close to one side of the turning plate 3, one side of the filter screen 5 is fixedly connected with the periphery of the, a scraper 51 is arranged above the filter screen 5, the front end and the rear end of the scraper 51 are respectively connected with the corresponding circular plates 21 in a sliding manner, the lower end of the scraper 51 is fixedly provided with a brush roller 54 through a shaft seat, the front of the rear circular plate 21 is fixedly provided with a spur rack 55, the rear roller shaft of the brush roller 54 is fixedly provided with a second gear, the top surface of the second gear is meshed with the spur rack 55, one side of the two circular plates 21 far away from the turning plate 3 is fixedly provided with a water storage tank 6, the cross section of the water storage tank 6 is fan-shaped and coaxial with the longitudinal shaft 2, the tip of the water storage tank 6 is fixedly connected with the periphery of the longitudinal shaft 2, the upper part of the water storage tank 6 is fixedly provided with a water receiving pipe 61, the lower part of the water storage tank 6 is fixedly provided with a guide pipe 62 towards one side of the filter screen 5, the lower parts of the inner sides of the, part of dirt in the sewage reacts with a flocculating agent to produce a large amount of floccule, then the sewage is sent into the water tank 1 through the water inlet pipe 12, taking fig. 2 as an example, when the water storage tank 6 is empty, the circular plate 21 rotates clockwise under the pulling of the balancing weight 7, the turning plate 3 meshed with the circular plate 21 through the second arc-shaped rack 33 also rotates downwards, the scraping plate 51 slides rightwards under the action of gravity, the brush roller 54 rotates anticlockwise under the driving of the spur rack 55 in the sliding process of the scraping plate 51 to brush the floccule on the surface of the filter screen 5 to the right side, the floccule falls on the top surface of the turning plate 3, the water receiving pipe 61 rotates to the lower part of the water inlet pipe 12, the sewage falling from the water inlet pipe 12 is injected into the water storage tank 6, after the water storage tank 6 is filled with the sewage, the gravity center of the circular plate 21 moves to one side of the water storage tank 6, the circular plate 21 rotates, taking fig. 1 as an example, the scraper, sewage falling from a water inlet pipe 12 can directly fall on a filter screen 5 for filtering, the filtered sewage can flow from a water outlet pipe 13 to a lower-order treatment device, a turning plate 3 can be upwards turned and tilted under the drive of a second arc-shaped rack 33, a first gear 42 can be driven by a first arc-shaped rack 41 to anticlockwise rotate in the tilting process, so as to drive an extruding roller 4 to anticlockwise rotate, the extruding roller 4 can extrude the floccule while pushing the floccule to a slag discharge hole 14 along the top surface of the turning plate 3, so as to extrude the sewage in the floccule, so as to reduce the water content of the floccule, a user needs to place a proper container or a feeding device below the slag discharge hole 14, meanwhile, the sewage in a water storage tank 6 can be slowly discharged to the filter screen 5 through a guide pipe 62, when the sewage in the water storage tank 6 falls to a certain degree, the gravity center of a circular plate 21 can deviate to one side of a balancing weight 7, thereby repeating the above-described actions; the invention can automatically clean the filter screen and realize the automatic deslagging function on one hand, and can also carry out extrusion dehydration treatment on the filtered floccule on the other hand, thereby reducing the labor amount of subsequent treatment of the floccule, realizing the function of the whole device completely by means of ingenious gravity center transfer and separation without any external power, having the advantages of energy saving, environmental protection and low manufacturing cost, and being suitable for popularization in the field of multistage treatment of landfill leachate and sewage.
Specifically, as shown in fig. 1, the inner wall of the water tank 1 near the circular plate 21 is fixedly provided with a stop 15, and the bottom of the inner cavity of the water tank 1 near the turning plate 3 is fixedly provided with a support 16. Taking fig. 1 as an example, when the circular plate 21 rotates counterclockwise, the stopper 15 will contact with the bottom surface of the water storage tank 6, thereby limiting the circular plate 21 to continue rotating; taking fig. 2 as an example, when the circular plate 21 rotates clockwise, the upper end of the support 16 contacts the bottom surface of the turning plate 3, so that the turning plate 3 and the circular plate 21 engaged therewith are prevented from further rotating, and the above structure can limit the rotation angle of the circular plate 21.
Specifically, as shown in fig. 1, in the present embodiment, sliding blocks 52 are fixedly mounted on the front and rear sides of a scraper 51, sliding grooves 53 are formed on the inner sides of circular plates 21, the sliding blocks 52 are slidably fitted with the corresponding sliding grooves 53, a first rope roller 56 is rotatably connected to the front of the circular plate 21 on the rear side through a rotating shaft with a torsion spring, the first rope roller 56 is located on one side of the scraper 51 facing the water storage tank 6, a first rope 57 is fixedly connected between the first rope roller 56 and the scraper 51, a part of the first rope 57 is wound on the outer periphery of the first rope roller 56, a belt pulley is mounted on the back surface of the inner cavity of the water tank 1, a third gear 8 is fixedly connected to the front of the belt pulley, the third gear 8 is engaged with the outer periphery of the circular plate 21 on the rear side, a second rope roller 81 is mounted on the back surface of the inner cavity of the water tank 1, fixedly connected with second line rope 82 between second rope roller 81 and the scraper blade 51, when plectane 21 clockwise turning, plectane 21 periphery drives third gear 8 and band pulley and rotates, thereby drive second rope roller 81 and rotate and tighten up second line rope 82, second rope 82 can draw scraper blade 51 to the right side, thereby drive scraper blade 51 scrapes filter screen 5, when plectane 21 counter-clockwise turning, second rope roller 81 counter-rotation relaxs second line rope 82, scraper blade 51 can get back to the left side again under the first rope roller 56 pulling that is equipped with the torsional spring.
Further, as shown in fig. 1, a plurality of through holes are respectively formed in the turning plate 3 and the vertical plate 32, and the through holes are uniformly distributed in the area close to the squeeze roll 4. When squeeze roll 4 extrudes the drainage to the flocculus, the water of extruding can directly be arranged to water tank 1 bottom through the through-hole, and the diameter of through-hole needs to be less than 2 millimeters in order to avoid extruding the flocculus together.
Furthermore, as shown in fig. 2, one end of the water receiving pipe 61 described in this embodiment is communicated with the inner cavity of the water storage tank 6, and the other end is opened upward and fixedly installed with an outward-expanding bell mouth. This structure can be convenient for water receiving pipe 61 to accept the sewage that falls from inlet tube 12.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (5)
1. The utility model provides an urban landfill leachate multistage processing apparatus, includes confined water tank (1), and water tank (1) top surface fixed mounting has stirring pond (11), and the through connection has inlet tube (12), its characterized in that between stirring pond (11) and the water tank: a longitudinal shaft (2) is rotatably installed on one side of an inner cavity of a water tank (1), coaxial circular plates (21) are fixedly installed on the front side and the rear side of the periphery of the longitudinal shaft (2) respectively, a turning plate (3) is arranged on the other side of the inner cavity of the water tank (1), a hinged seat (31) is fixedly installed on one side, far away from the circular plates (21), of the bottom surface of the turning plate (3), the front end and the rear end of a rotating shaft in the hinged seat (31) are fixedly connected with corresponding inner walls of the water tank (1) respectively, vertical plates (32) are fixedly installed on the front side and the rear side of the turning plate (3) respectively, an extrusion roller (4) is arranged on the top surface of the turning plate (3), the front end and the rear end of the extrusion roller (4) are connected with corresponding vertical plate (32) bearings respectively, a first arc-shaped rack (41) is fixedly installed on the inner wall of the rear side of the water, one side of a vertical plate (32) close to a circular plate (21) is respectively and fixedly provided with a second arc-shaped rack (33), the periphery of the circular plate (21) is respectively provided with teeth, the second arc-shaped rack (33) is respectively meshed with the periphery of the corresponding circular plate (32), a filter screen (5) is fixedly arranged between the two circular plates (21) close to one side of a turning plate (3), one side of the filter screen (5) is fixedly connected with the periphery of a longitudinal shaft (2), the other side of the filter screen (5) is flush with the edge of the circular plate (21), a scraper blade (51) is arranged above the filter screen (5), the front end and the rear end of the scraper blade (51) are respectively and slidably connected with the corresponding circular plate (21), the lower end of the scraper blade (51) is fixedly provided with a brush roller (54) through a shaft seat, the front surface of the rear circular plate (21) is fixedly provided with a straight rack (55), keep away from between two plectanes (21) and turn over board (3) one side fixed mounting and have storage water tank (6), storage water tank (6) cross-section is fan-shaped and with axis of ordinates (2) coaxial line, the pointed end and axis of ordinates (2) periphery fixed connection of storage water tank (6), storage water tank (6) upper portion fixed mounting has water receiving pipe (61), storage water tank (6) lower part is towards filter screen (5) one side fixed mounting has pipe (62), plectane (21) inboard lower part fixed mounting has balancing weight (7) respectively, water tank (1) bottom one side fixed mounting has outlet pipe (13), water tank (1) are close to and turn over board (3) one side and.
2. The multistage municipal leachate treatment plant according to claim 1, wherein: the inner wall of one side of the water tank (1) close to the circular plate (21) is fixedly provided with a stop block (15), and the bottom of the inner cavity of the water tank (1) close to one side of the turning plate (3) is fixedly provided with a support column (16).
3. The multistage municipal leachate treatment plant according to claim 1, wherein: the front side and the rear side of the scraper (51) are respectively and fixedly provided with a sliding block (52), the inner side of the circular plate (21) is respectively provided with a sliding groove (53), the sliding block (52) is respectively in sliding fit with the corresponding sliding groove (53), the front side of the rear circular plate (21) is rotationally connected with a first rope roller (56) through a rotating shaft with a torsion spring, the first rope roller (56) is positioned on one side of the scraper (51) facing the water storage tank (6), a first rope (57) is fixedly connected between the first rope roller (56) and the scraper (51), part of the first rope (57) is wound on the periphery of the first rope roller (56), a belt wheel is arranged on the back bearing of an inner cavity of the water tank (1), a third gear (8) is fixedly connected in front of the belt wheel, the third gear (8) is meshed with the periphery of the rear circular plate (21), the back bearing of the inner cavity of the water tank (1) is provided with a second, the same belt wheels are installed on the back of the second rope roller (81), the two belt wheels are connected through a belt, and a second rope (82) is fixedly connected between the second rope roller (81) and the scraper (51).
4. The multistage municipal leachate treatment plant according to claim 1, wherein: a plurality of through holes are respectively formed in the turning plate (3) and the vertical plate (32), and the through holes are uniformly distributed in the area close to the extrusion roller (4).
5. The multistage municipal leachate treatment plant according to claim 1, wherein: one end of the water receiving pipe (61) is communicated with the inner cavity of the water storage tank (6), and the other end is opened upwards and fixedly provided with an outward-expanding bell mouth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110252586.0A CN112624444B (en) | 2021-03-09 | 2021-03-09 | City landfill leachate multistage processing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110252586.0A CN112624444B (en) | 2021-03-09 | 2021-03-09 | City landfill leachate multistage processing apparatus |
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| CN112624444B CN112624444B (en) | 2021-05-18 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113582331A (en) * | 2021-09-14 | 2021-11-02 | 宁波三群环保科技有限公司 | MBR membrane water treatment facilities with shockproof disaster prevention function |
| CN114227278A (en) * | 2022-02-22 | 2022-03-25 | 烟台锐铭金属材料有限公司 | Processing equipment for chemical pressure container |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582331A (en) * | 2021-09-14 | 2021-11-02 | 宁波三群环保科技有限公司 | MBR membrane water treatment facilities with shockproof disaster prevention function |
| CN113582331B (en) * | 2021-09-14 | 2024-03-01 | 宁波亮睿华科技有限公司 | MBR membrane water treatment equipment with shockproof disaster prevention function |
| CN114227278A (en) * | 2022-02-22 | 2022-03-25 | 烟台锐铭金属材料有限公司 | Processing equipment for chemical pressure container |
| CN114227278B (en) * | 2022-02-22 | 2022-05-03 | 烟台锐铭金属材料有限公司 | Processing equipment for chemical pressure container |
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