New energy waste gas treatment equipment
By setting up a guidance plate and rectangular board in the new energy exhaust gas treatment equipment, the residence time of the exhaust gas is extended, and the H -shaped block and the extrusion module are performed to solve the existing equipment waste of water sources and excessive space. The problem realizes more efficient exhaust gas treatment and higher applicability.
Patent Information
- Application Number
- CN202411792930.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-08
- Publication Date
- 2025-01-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing new energy waste gas treatment equipment adopts spraying methods, resulting in waste of water sources and excessive internal space of the equipment, reducing overall applicability.
By setting the structure such as guidance plates and rectangular boards, splitting the exhaust gas and extending its residence time, combined with H -type blocks and extrusion modules for atomization and spraying, and replenishing liquid catalysts through semi -circular bumps and feeding components.
The degree and effect of exhaust gas treatment have been improved, the waste of water sources is reduced, and the applicability of the equipment is enhanced.
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Figure CN119367991A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of waste gas treatment, and specifically relates to a new energy waste gas treatment device. Background Art
[0002] New energy waste gas mainly refers to the waste gas generated in the production process of the new energy industry. If these waste gases are not properly treated, they will cause certain pollution to the atmospheric environment.
[0003] For example, the utility model with application number CN202020200597.5 discloses an industrial waste gas treatment equipment, which relates to the field of industrial waste gas treatment, including a gas collecting port, a gas pipe fixedly connected to the top of the gas collecting port, a spray tank at one end of the gas pipe, a water spray pipe fixedly installed inside the spray tank, a delivery pipe fixedly connected to the middle of the bottom end of the spray tank, a water dividing plate fixedly connected to the bottom end of the delivery pipe, an adsorption tower arranged outside the water dividing plate, activated carbon arranged inside the adsorption tower, a drain pipe fixedly connected to the bottom end of the adsorption tower, and support feet fixedly connected to both sides of the bottom end of the adsorption tower. The utility model can transport the waste gas to the inside of the spray tank through the gas collecting port and the gas pipe, and can prevent the waste gas from leaking. Water can be added to the inside of the waste gas through the water spray pipe, so that the chemical raw materials and water in the waste gas can react. The waste water can be evenly sprayed inside the adsorption tower through the water dividing plate, so that the waste water can be prevented from leaking.
[0004] However, the existing treatment equipment for new energy waste gas generally adopts the spraying method. The spraying method, on the one hand, will utilize a large amount of water resources, and the used water resources cannot be recycled and reused, thereby causing a waste of water resources. On the other hand, in order to improve the spraying effect, the required internal space of the equipment is relatively large, thereby greatly reducing the overall applicability. Therefore, in summary, a new energy waste gas treatment equipment is proposed. Summary of the invention
[0005] In order to solve the problem that the existing spraying method proposed in the above background technology will utilize a large amount of water resources, and the used water resources cannot be recycled and reused, thereby causing a waste of water resources; on the other hand, in order to improve the spraying effect, the required internal space of the equipment is relatively large, thereby greatly reducing the overall applicability. The present invention provides a new energy exhaust gas treatment equipment, which divides the exhaust gas to be treated into two parts by setting a guide plate and a rectangular plate and other structures, and then divides the exhaust gas to be treated into two parts through the channel area formed between the rectangular plate and the first shell, and moves the guide plate to the channel area between the first shell and the rectangular plate through a hydraulic cylinder and a positioning plate, so as to achieve The time that the waste gas to be treated stays between the first shell and the rectangular plate channel area is prolonged, thereby improving the degree and effect of waste gas treatment; by setting up the cooperation of structures such as H-blocks and extrusion modules, the waste gas remaining inside the channel area is atomized and sprayed out; by setting up the cooperation of structures such as semicircular protrusions and blanking components, the purpose of replenishing the liquid catalyst inside the sponge block is achieved. When the chain drive module runs, the other end of the chain drive module drives the semicircular protrusion to rotate. The semicircular protrusion cooperates with the flexible spring to achieve intermittent up and down movement of the closing rod inside the collecting bin, thereby achieving timely replenishment of the liquid catalyst inside the sponge block.
[0006] To achieve the above object, the present invention provides the following technical solution: a new energy waste gas treatment device, including a treatment chamber, and also including:
[0007] A moving component, wherein the moving component is arranged inside the processing chamber;
[0008] An extrusion module, the extrusion module is movably connected to the inner cavity of the processing chamber;
[0009] A material discharge assembly, wherein the material discharge assembly is fixedly connected to the top surface of the processing bin;
[0010] The processing chamber includes a first shell, and a rectangular plate is installed in the inner cavity of the first shell; the moving component includes a hydraulic cylinder fixedly connected to the first shell, and the output end bearing of the hydraulic cylinder is connected to an H-block, and both ends of the H-block close to the hydraulic cylinder are fixed with positioning plates, and a guide plate is installed on the side of the positioning plate close to the H-block; the extrusion module includes a pressing plate movably connected to the first shell.
[0011] Preferably, a secondary processing area is installed at the lower end of the inner cavity of the processing chamber;
[0012] The secondary treatment area comprises a second shell, the inner cavity of the second shell is staggeredly provided with two activated carbon partitions, and the bottom of the second shell is connected to a fan module;
[0013] A plurality of atomizing nozzles are provided inside the rectangular plate, and the waste gas treated by the inner cavity of the first shell is sucked into the interior of the second shell through the fan module, and the treated waste gas is subjected to secondary treatment through the staggered activated carbon partitions inside the second shell.
[0014] Preferably, a limiting groove is provided at the middle end of a side wall of the H-block away from the hydraulic cylinder, and multiple groups of guide plates are movably connected to the first shell and extend to the interior of the first shell. The multiple groups of guide plates are staggered. When the hydraulic cylinder is running, its output end will gradually drive the guide plate into the interior of the first shell through the positioning plate, and the internal channel of the first shell is intermittently partitioned by the guide plate. At the same time, the H-block will gradually move into the inner cavity of the first shell due to the movement of the output end of the hydraulic cylinder.
[0015] Preferably, the pressing plates are arranged on both sides of the inner cavity of the first shell, the interiors of the two groups of pressing plates are elastically connected to the rectangular plates through spring telescopic tubes, and a sponge block is arranged between the pressing plates and the rectangular plates;
[0016] One end of the two pressing plates away from the rectangular plate is in contact with the H-block. When the H-block moves to contact the pressing plate, when the H-block is flipped by external force, the end of the H-block will contact the pressing plate, causing the H-block to intermittently squeeze the pressing plate. The pressed pressing plate will gradually approach one side of the rectangular plate, and then continuously squeeze the sponge block, so that the liquid catalyst inside the sponge block can be atomized and sprayed from the atomizing nozzle inside the rectangular plate to the inside of the first shell, so that the atomized liquid catalyst can be fully mixed with the exhaust gas.
[0017] Preferably, the material discharge assembly comprises a collection bin, which is installed above the first housing, and a guide groove communicating with the sponge block is provided at the bottom of the collection bin;
[0018] A liquid catalyst is placed inside the collecting bin, and the liquid catalyst inside the collecting bin will simultaneously replenish the sponge blocks located on both sides of the inner wall of the rectangular plate through the two guide grooves.
[0019] Preferably, the collecting bin is internally movably connected with a closing rod for sealing the liquid inlet of the guide groove, the top end of the closing rod passes through the collecting bin and is abutted against a power assembly, the outer wall of the closing rod is sleeved with a flexible spring, and the closing rod is elastically connected to the collecting bin via the flexible spring, when the closing rod moves upward, the bottom end of the closing rod will release the blockage of the liquid inlet at the top of the guide groove, so that the liquid catalyst can be replenished through the guide groove, at this time the flexible spring is compressed, and vice versa the flexible spring will provide a downward reset force to the closing rod.
[0020] Preferably, the outer wall of the closing rod is in an inverted "U" shape, and one end of the bottom is in contact with the power assembly.
[0021] Preferably, the bottom end of the sealing rod is located on one side inside the collecting bin and is in an "H" shape, so as to seal the liquid inlet of the guide groove.
[0022] Preferably, the power assembly comprises a chain transmission module fixedly connected to the first housing, a clamping block is fixedly connected to the output end of the chain transmission module, and one end of the clamping block away from the chain transmission module is clamped to the limiting groove.
[0023] Preferably, a semicircular protrusion is fixedly connected to one end of the chain transmission module away from the clamping block, and the semicircular protrusion abuts against the guide groove.
[0024] Compared with the prior art, the present invention has the following beneficial effects:
[0025] The present invention divides the waste gas to be treated into two parts by arranging the cooperation of structures such as the guide plate and the rectangular plate, and then divides the waste gas to be treated into two parts through the channel area formed between the rectangular plate and the first shell, and moves the guide plate to between the channel area of the first shell and the rectangular plate through the hydraulic cylinder and the positioning plate, so as to prolong the time that the waste gas to be treated stays between the first shell and the channel area of the rectangular plate, thereby improving the degree and effect of waste gas treatment;
[0026] The present invention cooperates with structures such as H-shaped blocks and extrusion modules to perform atomization spraying treatment on the waste gas remaining in the channel area, and delays the flow of the waste gas to be treated inside the first shell and the rectangular plate through multiple guide plates. When the limit groove is docked with the clamping block, the operation of the chain transmission module causes the end of the H-shaped block to contact the outer wall of the pressing plate, so that the pressing plate compresses the sponge block, so that the liquid catalyst inside the sponge block is sprayed into the channel through the atomization nozzle on the outer wall of the rectangular plate, thereby greatly improving the treatment effect of the waste gas on the original basis;
[0027] The present invention achieves the purpose of replenishing the liquid catalyst inside the sponge block by arranging the cooperation of structures such as semicircular protrusions and blanking components. When the chain transmission module is running, the other end of the chain transmission module drives the semicircular protrusion to rotate. The semicircular protrusion cooperates with the flexible spring to achieve the intermittent up and down movement of the closing rod inside the collecting bin, thereby achieving timely replenishment of the liquid catalyst inside the sponge block. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the present invention;
[0029] Figure 2 It is a schematic diagram of the subdivision structure of the secondary treatment area of the present invention;
[0030] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure at center A;
[0031] Figure 4 This is a schematic diagram of the structural matching relationship between the collecting bin and the guide groove of the present invention;
[0032] Figure 5 It is a schematic diagram of the structural matching relationship between the chain transmission module and the semicircular protrusion of the present invention;
[0033] Figure 6 It is a schematic diagram of the subdivided structure of the mobile component of the present invention;
[0034] Figure 7 It is a schematic diagram of the structural matching relationship between the semicircular protrusion and the guide groove of the present invention;
[0035] Figure 8 It is a schematic diagram of the subdivided structure of the extrusion module of the present invention.
[0036] In the figure: 1. Processing chamber; 11. First shell; 12. Secondary processing area; 121. Second shell; 122. Activated carbon partition; 123. Fan module; 13. Rectangular plate; 2. Moving assembly; 21. Hydraulic cylinder; 22. Positioning plate; 23. Guide plate; 24. H-block; 25. Limiting groove; 3. Extrusion module; 31. Pressing plate; 32. Sponge block; 33. Spring telescopic tube; 4. Unloading assembly; 41. Collection chamber; 42. Closing rod; 43. Guide groove; 44. Flexible spring; 5. Power assembly; 51. Chain transmission module; 52. Block; 53. Semicircular protrusion. DETAILED DESCRIPTION
[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0038] like Figures 1 to 8 As shown, the present invention provides a new energy waste gas treatment device, including a treatment chamber 1, and also including:
[0039] A moving component 2, the moving component 2 is arranged inside the processing chamber 1;
[0040] An extrusion module 3, which is movably connected to the inner cavity of the processing chamber 1;
[0041] A material discharge assembly 4, the material discharge assembly 4 is fixedly connected to the top surface of the processing chamber 1;
[0042] The processing chamber 1 includes a first shell 11, and a rectangular plate 13 is installed in the inner cavity of the first shell 11; the moving component 2 includes a hydraulic cylinder 21 fixedly connected to the first shell 11, and the output end bearing of the hydraulic cylinder 21 is connected to an H-block 24, and both ends of the H-block 24 close to the hydraulic cylinder 21 are fixedly connected to positioning plates 22, and a guide plate 23 is installed on the side of the positioning plate 22 close to the H-block 24; the extrusion module 3 includes a pressing plate 31 movably connected to the first shell 11.
[0043] like Figure 2 As shown, a secondary processing area 12 is installed at the lower end of the inner cavity of the processing chamber 1;
[0044] The secondary treatment area 12 includes a second shell 121, the inner cavity of the second shell 121 is staggered with two activated carbon partitions 122, and the bottom of the second shell 121 is connected to a fan module 123;
[0045] A plurality of atomizing nozzles are provided inside the rectangular plate 13 .
[0046] By adopting the above scheme, the waste gas treated by the inner cavity of the first shell 11 will be sucked into the interior of the second shell 121 through the fan module 123, and the treated waste gas will be subjected to secondary treatment through the staggered activated carbon partitions 122 inside the second shell 121.
[0047] like Figure 4 and Figure 6 As shown, a limiting groove 25 is provided at the middle end of a side wall of the H-shaped block 24 away from the hydraulic cylinder 21 , and multiple sets of guide plates 23 are movably connected to the first housing 11 and extend to the interior of the first housing 11 , and the multiple sets of guide plates 23 are staggeredly distributed.
[0048] By adopting the above scheme: when the hydraulic cylinder 21 is in operation, its output end will gradually drive the guide plate 23 through the positioning plate 22 to enter the interior of the first shell 11, and the internal channel of the first shell 11 will be intermittently partitioned by the guide plate 23. At the same time, as the H-block 24 moves, it will gradually move into the inner cavity of the first shell 11 due to the movement of the output end of the hydraulic cylinder 21.
[0049] like Figures 3 to 5 and Figure 8 As shown, the pressing plates 31 are arranged on both sides of the inner cavity of the first shell 11, and the interiors of the two sets of pressing plates 31 are elastically connected to the rectangular plate 13 through spring telescopic tubes 33, and a sponge block 32 is arranged between the pressing plates 31 and the rectangular plate 13;
[0050] One end of the two pressing plates 31 away from the rectangular plate 13 abuts against the H-shaped block 24 .
[0051] The above scheme is adopted: when the H-block 24 moves to contact with the pressing plate 31, when the H-block 24 is overturned by external force, the end of the H-block 24 will contact the pressing plate 31, so that the H-block 24 intermittently squeezes the pressing plate 31, and the pressed pressing plate 31 will gradually approach one side of the rectangular plate 13, and then continuously squeeze the sponge block 32, so that the liquid catalyst inside the sponge block 32 can be atomized and sprayed from the atomizing nozzle inside the rectangular plate 13 to the inside of the first shell 11, so that the atomized liquid catalyst can be fully mixed with the exhaust gas.
[0052] like Figures 3 to 5 As shown, the material discharge assembly 4 includes a collection bin 41, which is installed above the first housing 11, and a guide groove 43 communicating with the sponge block 32 is provided at the bottom of the collection bin 41;
[0053] A liquid catalyst is placed inside the collecting chamber 41 , and the liquid catalyst inside the collecting chamber 41 will simultaneously replenish the sponge blocks 32 located on both sides of the inner wall of the rectangular plate 13 through the two guide grooves 43 .
[0054] like Figures 3 to 5 and Figure 7 As shown, the collecting bin 41 is internally movably connected with a closing rod 42 for blocking the liquid inlet of the guide groove 43, the top end of the closing rod 42 passes through the collecting bin 41, and is abutted against a power assembly 5, the outer wall of the closing rod 42 is sleeved with a flexible spring 44, and the closing rod 42 is elastically connected to the collecting bin 41 via the flexible spring 44.
[0055] Adopting the above solution: when the closing rod 42 moves upward, the bottom end of the closing rod 42 will release the blockage of the liquid inlet at the top of the guide groove 43, so that the liquid catalyst can be replenished through the guide groove 43. At this time, the flexible spring 44 is compressed, and vice versa, the flexible spring 44 will provide a downward reset force to the closing rod 42.
[0056] like Figure 5 and Figure 7 As shown, the outer wall of the closing rod 42 is in a reverse “U” shape, and one end of the bottom is in contact with the power assembly 5 .
[0057] like Figure 7 As shown, the bottom end of the sealing rod 42 is located in the collecting chamber 41 and is in an "H" shape on one side thereof, so as to block the liquid inlet of the guiding groove 43 .
[0058] like Figure 7 As shown, the power assembly 5 includes a chain transmission module 51 fixedly connected to the first housing 11 , a clamping block 52 is fixedly connected to the output end of the chain transmission module 51 , and one end of the clamping block 52 away from the chain transmission module 51 is clamped with the limiting groove 25 .
[0059] By adopting the above scheme, when the H-shaped block 24 is moved to the inner cavity of the first housing 11, the limit groove 25 will correspond to the clamping block 52, and the clamping block 52 can be clamped in the limit groove 25. When the two are docked and clamped, the output end of the chain transmission module 51 will be clamped with the limit groove 25 through the clamping block 52 through the operation of the chain transmission module 51, thereby driving the H-shaped block 24 to flip inside the first housing 11.
[0060] like Figure 7 As shown, a semicircular protrusion 53 is fixedly connected to one end of the chain transmission module 51 away from the clamping block 52 , and the semicircular protrusion 53 abuts against the guide groove 43 .
[0061] The above scheme is adopted: when the chain transmission module 51 is running, the semicircular protrusion 53 and the block 52 will be driven to rotate respectively through the output end. When the raised area of the semicircular protrusion 53 contacts the bottom end of the closing rod 42, it will resist the upward movement of the closing rod 42. On the contrary, when the raised area of the semicircular protrusion 53 does not contact the bottom end of the closing rod 42, the closing rod 42 will move downward due to the elastic force of the flexible spring 44.
[0062] The working principle and use process of the present invention:
[0063] First, the exhaust gas is sucked by the fan module 123, and the exhaust gas to be treated is divided into two parts through the channel formed between the first shell 11 and the rectangular plate 13 and collected in the two side areas of the channel between the first shell 11 and the rectangular plate 13. Before that, the hydraulic cylinder 21 is used to drive the positioning plate 22, the guide plate 23 and the H-shaped block 24 to move into the first shell 11 at the same time at its output end;
[0064] When the guide plate 23 moves to the channel area formed by the first shell 11 and the rectangular plate 13, the multiple guide plates 23 will form a mutually staggered state, so as to increase the residence time of the waste gas to be treated in the channel area. At the same time, the movement of the H-block 24 will cause the limit groove 25 to engage with the clamping block 52. At the same time, the chain transmission module 51 is started, and one output end will drive the H-block 24 to rotate inside the rectangular plate 13 through the clamping block 52, so that the end of the H-block 24 contacts the pressing plate 31, so that the pressing plate 31 squeezes the sponge block 32, and the liquid catalyst inside the sponge block 32 is sprayed into the channel area of the first shell 11 and the rectangular plate 13 through the atomizing nozzle on the outer wall of the rectangular plate 13;
[0065] At the same time, the other end of the chain transmission module 51 will intermittently resist the closing rod 42 through the flexible spring 44, so that the closing rod 42 will intermittently move up and down inside the collecting bin 41, thereby replenishing the liquid catalyst inside the sponge block 32;
[0066] The waste gas treated inside the first shell 11 will enter the second shell 121, and the waste gas after preliminary treatment will be treated again through the distribution of the activated carbon partition 122 inside the second shell 121, and the treated waste gas will be discharged through the output pipe of the fan module 123.
[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A new energy waste gas treatment device, comprising a treatment chamber (1), characterized in that: Also includes: A moving component (2), wherein the moving component (2) is arranged inside the processing chamber (1); An extrusion module (3), the extrusion module (3) being movably connected to the inner cavity of the processing chamber (1); A material discharge assembly (4), wherein the material discharge assembly (4) is fixedly connected to the top surface of the processing chamber (1); The processing chamber (1) comprises a first shell (11), the inner cavity of which is installed a rectangular plate (13); the moving assembly (2) comprises a hydraulic cylinder (21) fixedly connected to the first shell (11), the output end bearing of the hydraulic cylinder (21) is connected to an H-shaped block (24), both ends of the H-shaped block (24) close to the hydraulic cylinder (21) are fixedly connected to positioning plates (22), and the side of the positioning plate (22) close to the H-shaped block (24) is installed with a guide plate (23); the extrusion module (3) comprises a pressing plate (31) movably connected to the first shell (11).
2. The new energy waste gas treatment equipment according to claim 1 is characterized in that: A secondary processing area (12) is installed at the lower end of the inner cavity of the processing chamber (1); The secondary treatment area (12) comprises a second shell (121), the inner cavity of the second shell (121) is staggeredly provided with two activated carbon partitions (122), and the bottom of the second shell (121) is connected to a fan module (123); A plurality of atomizing nozzles are provided inside the rectangular plate (13).
3. The new energy waste gas treatment equipment according to claim 1 is characterized in that: A limiting groove (25) is provided at the middle end of a side wall of the H-shaped block (24) away from the hydraulic cylinder (21); a plurality of groups of guide plates (23) are movably connected to the first housing (11) and extend into the interior of the first housing (11); and the plurality of groups of guide plates (23) are staggeredly distributed.
4. The new energy waste gas treatment equipment according to claim 1 is characterized in that: The pressing plates (31) are arranged on both sides of the inner cavity of the first shell (11); the interiors of the two groups of pressing plates (31) are elastically connected to the rectangular plate (13) via spring telescopic tubes (33); and a sponge block (32) is arranged between the pressing plates (31) and the rectangular plate (13); One end of the two pressing plates (31) away from the rectangular plate (13) abuts against the H-shaped block (24).
5. The new energy waste gas treatment equipment according to claim 1 is characterized in that: The material discharge assembly (4) comprises a collection bin (41), the collection bin (41) being installed above the first housing (11), and a guide groove (43) communicating with the sponge block (32) being provided at the bottom of the collection bin (41); The collecting bin (41) contains a liquid catalyst.
6. The new energy waste gas treatment equipment according to claim 5 is characterized in that: The collecting bin (41) is movably connected internally with a closing rod (42) for blocking the liquid inlet of the guide groove (43); the top end of the closing rod (42) passes through the collecting bin (41) and is abutted against a power assembly (5); the outer wall of the closing rod (42) is sleeved with a flexible spring (44); the closing rod (42) is elastically connected to the collecting bin (41) via the flexible spring (44).
7. The new energy waste gas treatment equipment according to claim 6 is characterized in that: The outer wall of the closing rod (42) is in a reverse "U" shape, and one end of the bottom is in contact with the power assembly (5).
8. The new energy waste gas treatment equipment according to claim 7 is characterized in that: The bottom end of the sealing rod (42) is located on one side inside the collecting bin (41) and is in an "H" shape, and is used to block the liquid inlet of the guide groove (43).
9. The new energy waste gas treatment equipment according to claim 6 is characterized in that: The power assembly (5) comprises a chain transmission module (51) fixedly connected to the first housing (11); a clamping block (52) is fixedly connected to the output end of the chain transmission module (51); and one end of the clamping block (52) away from the chain transmission module (51) is clamped to the limiting groove (25).
10. The new energy waste gas treatment equipment according to claim 9, characterized in that: A semicircular protrusion (53) is fixedly connected to one end of the chain transmission module (51) away from the clamping block (52), and the semicircular protrusion (53) abuts against the guide groove (43).
Citation Information
Patent Citations
Industrial waste gas treatment equipment
CN212262811U