Environment-friendly regenerated activated carbon and preparation method thereof

By designing an automated conveyor belt and support component system, the problem of easy deformation of activated carbon during transportation is solved, and the stable transportation and efficient production of activated carbon is achieved.

CN119706830AActive Publication Date: 2025-03-28JIANGSU QIANHUIHE ENVIRONMENTAL REGENERATION CO LTD
View PDF 7 Cites 0 Cited by

Patent Information

Application Number
CN202510141467.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-08
Publication Date
2025-03-28
Estimated Expiration
2045-02-08

AI Technical Summary

Technical Problem

Existing activated carbons are prone to deformation during transportation after forming, resulting in high product damage and high defect rate.

Method used

A preparation method for environmentally friendly reactive carbon is designed to transport activated carbon through a conveyor belt, and to use support components and push components to realize automatic flip and support of activated carbon to avoid deformation caused by manual operation.

Benefits of technology

It effectively improves the transportation stability of activated carbon, reduces product damage rate, improves product pass rate, and saves human resources.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119706830A_ABST
    Figure CN119706830A_ABST
Patent Text Reader

Abstract

The invention discloses environment-friendly regenerated activated carbon and a preparation method thereof, and relates to the technical field of activated carbon. Cut activated carbon is conveyed to a conveying belt through the conveying belt, then the two ends of a supporting plate are put into two limiting grooves correspondingly, and the supporting plate is almost attached to the activated carbon rapidly through the arrangement of a supporting assembly; at the moment, a worker is prevented from manually attaching the supporting plate to the activated carbon, the situation that the activated carbon which is not dried in the shade is deformed due to the fact that the use force of the worker is too large is avoided, the product percent of pass is improved, meanwhile, two wires are driven to be released from two winding shafts when a motor rotates, and a push plate can pop out at the moment; through the arrangement of an inclined plane of a trigger block, two push plates are not limited any more, activated carbon is placed on a supporting frame, workers can conveniently collect the activated carbon, the workers do not need to continuously convey activated carbon raw materials in a reciprocating mode, manpower is saved, then a motor is started to rotate reversely, the whole device is reset, and the device can be used again.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to the technical field of activated carbon, in particular to an environmentally friendly regenerated activated carbon and a preparation method thereof. Background Art

[0002] Activated carbon is a specially treated carbon. Organic raw materials (fruit shells, coal, wood, etc.) are heated in an airtight condition to reduce non-carbon components (this process is called carbonization), and then react with gas to erode the surface and produce a structure with developed micropores (this process is called activation). Since the activation process is a microscopic process, that is, the surface erosion of a large number of molecular carbides is point erosion, so the surface of activated carbon has countless tiny pores. The diameter of the micropores on the surface of activated carbon is mostly between 2 and 50nm. Even a small amount of activated carbon has a huge surface area. The surface area of ​​each gram of activated carbon is 500~1500m2. Almost all applications of activated carbon are based on this feature of activated carbon.

[0003] However, activated carbon needs to be transported and dried in the shade after being formed. However, the current transportation method is for workers to flip the activated carbon using templates. However, the activated carbon is in a soft state and is very easy to deform, causing product damage, resulting in a high product defect rate. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly regenerated activated carbon and a preparation method thereof to solve the deficiencies in the above-mentioned prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solution: the unloading unit in S3 includes a support seat, a conveyor belt is arranged on the support seat, and the feature is that a driving assembly is arranged on the support seat, and the driving assembly can drive the conveyor belt to rotate; The conveyor belt can convey the activated carbon; The support assembly is arranged on the conveyor belt, and the support assembly can support a plurality of sides of the activated carbon; The support frame is located beside the support seat; The pushing component is arranged on the supporting seat, the driving component can drive the pushing component to move, and the pushing component can cooperate with the supporting component to transport a number of activated carbons to the supporting frame.

[0006] Furthermore, the driving assembly includes a motor arranged on the support base, a driving rod is provided at the output end of the motor, the driving rod is fixedly connected to the conveyor belt, a first gear is sleeved on the driving rod, the first gear is meshed with a second gear, and the second gear is rotatably connected to the support base.

[0007] Furthermore, the support assembly includes a first spring telescopic member fixedly arranged on the support seat, and a reset rod and an inclined block are arranged on the output end of the first spring telescopic member.

[0008] Furthermore, the support assembly also includes a cross bar fixedly connected to the conveyor belt, two clamping structures are provided on the cross bar, an accommodation groove is opened on the cross bar, a number of fourth spring telescopic parts are respectively arranged in the two accommodation grooves, and two clamping blocks are provided at the output ends of the number of fourth spring telescopic parts.

[0009] Furthermore, the clamping structure includes an outer frame slidably arranged on the cross bar, a limiting groove is provided on the outer frame, the outer frame is fixedly connected to an output end of a second spring telescopic member, the second spring telescopic member is fixedly arranged on the cross bar, a fifth spring telescopic member is arranged on the outer frame, and a clamping plate is arranged at the output end of the fifth spring telescopic member.

[0010] Furthermore, the two limit grooves respectively correspond to the two end positions of a support plate, two limit blocks are fixedly arranged on the support plate, the two outer frames respectively correspond to the positions of the two reset rods, and the two clamping blocks respectively correspond one-to-one to the positions of the two limit grooves.

[0011] Furthermore, the pushing assembly includes a rotating rod rotatably connected to the second gear, the rotating rod is rotatably connected to the support seat, and two pushing units are sleeved on the rotating rod.

[0012] Furthermore, the pushing unit includes a winding shaft sleeved on the rotating rod, one end of a wire is connected to the winding shaft, and the other end of the wire is fixedly connected to a pushing plate.

[0013] Furthermore, the push plate is slidably connected within a telescopic sleeve, the telescopic sleeve is fixedly arranged on the support seat, two spring members are arranged in the telescopic sleeve, the wire passes through the telescopic sleeve, and a limit plate is arranged at the end of the push plate away from the wire, the limit plate corresponds to the position of two trigger blocks, the two trigger blocks are respectively arranged at the output ends of two third spring telescopic members, and the two third spring telescopic members are both fixed on the support seat.

[0014] In the above technical scheme, the present invention provides an environmentally friendly regenerated activated carbon and a preparation method thereof, wherein the cut activated carbon is transported to the conveyor belt by a conveyor belt, and then the two ends of a support plate are respectively placed in two limit grooves, and the support assembly is arranged so that the support plate is quickly and almost fitted with the activated carbon, thereby preventing workers from manually fitting the support plate and the activated carbon, and preventing workers from using excessive force to cause deformation of the activated carbon that has not been dried in the shade, thereby improving the product qualification rate, and then starting the motor to drive the activated carbon to flip, at which time the support plate is subjected to the pressure of some activated carbon, and by setting the elastic force of the second spring telescopic member, the second spring telescopic member is made It will only shrink slightly to prevent the activated carbon raw materials from excessive bumps and deformation, and the clamping plate clamps the support plate to prevent the support plate from falling off. At this time, the support plate falls above the support frame, and at the same time, the motor rotates, driving the two wires to be released from the two winding shafts respectively, so that the push plate can pop out at this time. By setting the inclined surface of the trigger block, the two push plates are no longer limited. At this time, the support plate slides on the support frame, so that the activated carbon is placed on the support frame, which is convenient for workers to collect the activated carbon. There is no need for workers to continuously transport the activated carbon raw materials back and forth, saving manpower. After that, the motor is started to reverse, so that the device is reset as a whole and can be used again. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 One of the overall structural diagrams provided by the embodiment of the present invention; Figure 2 The second schematic diagram of the overall structure provided by the embodiment of the present invention; Figure 3 One of the internal structure schematic diagrams provided by the embodiment of the present invention; Figure 4 The embodiment of the present invention provides Figure 3 A schematic diagram of the enlarged structure at point A; Figure 5 The second schematic diagram of the internal structure provided by the embodiment of the present invention; Figure 6 The third schematic diagram of the internal structure provided by the embodiment of the present invention; Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram of the enlarged structure at B.

[0017] Description of reference numerals: 1. Support seat; 2. Conveyor belt; 3. Driving assembly; 31. Motor; 32. Driving rod; 33. First gear; 34. Second gear; 4. Support assembly; 41. First spring telescopic member; 42. Reset rod; 43. Oblique block; 44. Cross bar; 45. Clamping structure; 451. Outer frame; 452. Limiting groove; 453. Second spring telescopic member; 46. Support plate; 47. Limiting block; 49. Block; 410. Fifth spring telescopic member; 411. Clamping plate; 5. Support frame; 6. Pushing assembly; 61. Rotating rod; 62. Pushing unit; 621. Winding shaft; 622. Wire; 623. Pushing plate; 624. Telescopic sleeve; 625. Spring member; 626. Limiting plate; 627. Trigger block; 628. Third spring telescopic member. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] See also Figure 1-7 The unloading unit in S3 provided in the embodiment of the present invention comprises a support base 1, on which a conveyor belt 2 is arranged, and is characterized in that a driving component 3 is arranged on the support base 1, and the driving component 3 can drive the conveyor belt 2 to rotate; The conveyor belt 2 can convey the activated carbon; The support assembly 4 is arranged on the conveyor belt 2, and the support assembly 4 can support the sides of several activated carbons; The support frame 5 is located beside the support base 1; The pushing assembly 6 is arranged on the supporting seat 1 , the driving assembly 3 can drive the pushing assembly 6 to move, and the pushing assembly 6 can cooperate with the supporting assembly 4 to transport a number of activated carbons to the supporting frame 5 .

[0020] Preferably, the driving assembly 3 includes a motor 31 arranged on the support base 1, and a driving rod 32 is arranged at the output end of the motor 31, and the driving rod 32 is fixedly connected to the conveyor belt 2. A first gear 33 is sleeved on the driving rod 32, and the first gear 33 is meshed with a second gear 34, and the second gear 34 is rotatably connected to the support base 1. Through the speed change setting between the first gear 33 and the second gear 34, the push plate 623 can be released or reset after the support plate 46 rotates ninety degrees.

[0021] Preferably, the support assembly 4 includes a first spring telescopic member 41 fixedly arranged on the support seat 1, and a reset rod 42 and a bevel block 43 are arranged on the output end of the first spring telescopic member 41. The reset rod 42 is arranged so that the outer frame 451 can be reset, and the reset rod 42 can release the limit on the outer frame 451 after the horizontal bar is reset, so that the outer frame 451 can be used for the next time.

[0022] Preferably, the support assembly 4 also includes a cross bar 44 fixedly connected to the conveyor belt 2, two clamping structures 45 are arranged on the cross bar 44, an accommodation groove is opened on the cross bar 44, a plurality of fourth spring telescopic parts are respectively arranged in the two accommodation grooves, and two clamping blocks 49 are arranged at the output ends of the plurality of fourth spring telescopic parts. Through the setting of the clamping blocks 49, after the limit rod no longer limits the outer frame 451, the outer frame 451 is still limited until the next support plate 46 is used.

[0023] Preferably, the clamping structure 45 includes an outer frame 451 slidably arranged on the cross bar 44, a limiting groove 452 is provided on the outer frame 451, the outer frame 451 is fixedly connected to an output end of a second spring telescopic member 453, the second spring telescopic member 453 is fixedly arranged on the cross bar 44, a fifth spring telescopic member 410 is arranged on the outer frame 451, and a clamping plate 411 is arranged at the output end of the fifth spring telescopic member 410. The setting of the clamping plate 411 allows the support plate 46 to be limited after entering the limiting groove 452, preventing the support plate 46 from falling off during rotation, thereby avoiding the falling off of the activated carbon raw material. At the same time, the setting of the second spring telescopic member 453 allows the support plate 46 to quickly and directly fit into the activated carbon raw material after entering the limiting groove 452.

[0024] Preferably, the two limit grooves 452 correspond to the two end positions of a support plate 46 respectively, and two limit blocks 47 are fixedly arranged on the support plate 46. The two outer frames 451 correspond to the positions of the two reset rods 42 respectively, and the two clamping blocks 49 correspond to the positions of the two limit grooves 452 respectively. When in use, the two ends of a support plate 46 are respectively placed in the two limit grooves 452. The inclined surfaces on the two clamping plates 411 are arranged to facilitate the support plate 46 to enter the limit groove 452. The two fifth spring telescopic members 410 are arranged so that when the support plate 46 enters the limit groove 452, the two fifth spring telescopic members 410 are contracted, so that the support plate 46 is clamped, so that the two The block 49 moves downward under the pressure of the support plate 46, driving the two first spring members 625 to contract, so that the block 49 is no longer located in the limit groove 452, so that the two second spring telescopic members 453 are released, driving the two outer frames 451 to move, so that the support plate 46 moves, so that the support plate 46 is almost in contact with the activated carbons, and at the same time, the motor 31 drives the driving rod 32 to rotate, so that the conveyor belt 2 rotates, and drives the supporting structure to rotate, so that the activated carbon flips over. At this time, the support plate 46 is subjected to the pressure of the activated carbons. By setting the elastic force of the second spring telescopic member 453, the second spring telescopic member 453 will only contract slightly at this time, and the support plate 46 falls above the support frame 5.

[0025] Preferably, the pushing assembly 6 includes a rotating rod 61 rotatably connected to the second gear 34 , the rotating rod 61 is rotatably connected to the support base 1 , and two pushing units 62 are sleeved on the rotating rod 61 .

[0026] Preferably, the pushing unit 62 includes a winding shaft 621 sleeved on the rotating rod 61 , one end of a wire 622 is connected to the winding shaft 621 , and the other end of the wire 622 is fixedly connected to a pushing plate 623 .

[0027] Preferably, the push plate 623 is slidably connected within a telescopic sleeve 624, the telescopic sleeve 624 is fixedly arranged on the support seat 1, two spring members 625 are arranged in the telescopic sleeve 624, the wire 622 runs through the telescopic sleeve 624, and a limit plate 626 is arranged at one end of the push plate 623 away from the wire 622, the limit plate 626 corresponds to the position of two trigger blocks 627, the two trigger blocks 627 are respectively arranged at the output ends of two third spring telescopic members 628, and the two third spring telescopic members 628 are both fixed on the support seat 1, and when the motor 31 rotates, it drives the first gear 33 to rotate, so that the second gear 34 rotates, and drives the two winding shafts 621 to rotate, so that the two wires 622 are respectively released from the two winding shafts 621; When the support plate 46 rotates, the two limit blocks 47 are driven to rotate synchronously. After the two limit blocks 47 rotate, they contact the trigger blocks 627 respectively. The third spring expansion members 628 are contracted by the setting of the inclined surface of the trigger blocks 627, so that the two push plates 623 are no longer limited. At this time, the spring members 625 are released, driving the two push plates 623 to pop out, so that the two limit plates 626 move, driving the two limit blocks 47 to move, so that the support plate 46 slides on the support frame 5, so that the activated carbon is placed on the support frame 5; Then, the motor 31 is started to rotate in reverse, driving the rotating rod 61 to rotate in reverse, so that the two wires 622 are respectively wound by the two winding shafts 621, driving the two push plates 623 to be pulled, so that the two limit plates 626 are pulled to reset, and due to the setting of the inclined surface of the contact block, the third spring expansion members 628 are contracted and released, so that the two push plates 623 are limited again; At the same time, when the motor 31 reverses, it drives the conveyor belt 2 to reverse, so that the support assembly 4 rotates and resets, driving the two outer frames 451 to contact the two reset rods 42 respectively, so that the two outer frames 451 cannot continue to rotate, but the cross bar 44 continues to rotate and contacts the two inclined blocks 43, so that the two first spring telescopic parts 41 contract, driving the two reset rods 42 to contract, and the cross bar 44 completes the reset at this time. By setting the inclined surface of the card block 49, the card block 49 enters the limit groove 452 again, so that the outer frame 451 is limited again, so that the entire device can be used again.

[0028] Working principle: The cut activated carbon is transported to the conveyor belt 2 by the conveyor belt 2, and then the two ends of a support plate 46 are respectively placed in the two limit grooves 452. The inclined surfaces on the two clamping plates 411 are set to facilitate the support plate 46 to enter the limit groove 452. The two fifth spring telescopic parts 410 are set so that when the support plate 46 enters the limit groove 452, the two fifth spring telescopic parts 410 are contracted, so that the support plate 46 is clamped, so that the two clamping blocks 49 are moved downward by the pressure of the support plate 46, driving the two first spring parts 625 to contract, so that the clamping block 49 is no longer located in the limit groove 452, so that the two second spring telescopic parts 453 are released, driving the two outer frames 451 to move, so that the support plate 46 moves, so that the support plate 46 is almost in contact with a number of activated carbons; Then, the motor 31 is started to drive the driving rod 32 to rotate, so that the conveyor belt 2 rotates, and the supporting structure rotates, so that the activated carbon flips over. At this time, the support plate 46 is subjected to the pressure of some activated carbon. By setting the elastic force of the second spring telescopic member 453, the second spring telescopic member 453 will only shrink slightly at this time, and the support plate 46 will fall above the support frame 5. At the same time, when the motor 31 rotates, it drives the first gear 33 to rotate, so that the second gear 34 rotates, and drives the two winding shafts 621 to rotate, so that the two wires 622 are released from the two winding shafts 621 respectively; When the support plate 46 rotates, the two limit blocks 47 are driven to rotate synchronously. After the two limit blocks 47 rotate, they contact the trigger blocks 627 respectively. The third spring expansion members 628 are contracted by the setting of the inclined surface of the trigger blocks 627, so that the two push plates 623 are no longer limited. At this time, the spring members 625 are released, driving the two push plates 623 to pop out, so that the two limit plates 626 move, driving the two limit blocks 47 to move, so that the support plate 46 slides on the support frame 5, so that the activated carbon is placed on the support frame 5; Then, the motor 31 is started to rotate in reverse, driving the rotating rod 61 to rotate in reverse, so that the two wires 622 are respectively wound by the two winding shafts 621, driving the two push plates 623 to be pulled, so that the two limit plates 626 are pulled to reset, and due to the setting of the inclined surface of the contact block, the third spring expansion members 628 are contracted and released, so that the two push plates 623 are limited again; At the same time, when the motor 31 reverses, it drives the conveyor belt 2 to reverse, so that the support assembly 4 rotates and resets, driving the two outer frames 451 to contact the two reset rods 42 respectively, so that the two outer frames 451 cannot continue to rotate, but the cross bar 44 continues to rotate and contacts the two inclined blocks 43, so that the two first spring telescopic parts 41 contract, driving the two reset rods 42 to contract, and the cross bar 44 completes the reset at this time. By setting the inclined surface of the card block 49, the card block 49 enters the limit groove 452 again, so that the outer frame 451 is limited again, so that the entire device can be used again.

[0029] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An environmentally friendly regenerated activated carbon, characterized in that: The following ingredients are mixed in percentage by weight: activated carbon powder, zeolite powder, porous carbon nanomaterial, graphene oxide, pore former, polymer binder; Then proceed with the following preparation: S1, then crushing the mixed raw materials; S2, extruding the crushed raw materials; S3, unloading the formed materials using a unloading unit and drying them in the shade; S4, carbonizing the raw materials after being dried in the shade; S5. Pack and collect the carbonized raw materials.

2. The method for preparing environmentally friendly regenerated activated carbon according to claim 1, characterized in that: The unloading unit in S3 comprises a support base (1), on which a conveyor belt (2) is arranged, and is characterized in that a driving component (3) is arranged on the support base (1), and the driving component (3) can drive the conveyor belt (2) to rotate; The conveyor belt (2) is capable of conveying the activated carbon; The support assembly (4) is arranged on the conveyor belt (2), and the support assembly (4) is capable of supporting a plurality of sides of the activated carbon; The support frame (5) is located beside the support base (1); The pushing component (6) is arranged on the support seat (1), the driving component (3) can drive the pushing component (6) to move, and the pushing component (6) can cooperate with the supporting component (4) to transport a number of activated carbons to the supporting frame (5).

3. The environmentally friendly regenerated activated carbon and its preparation method according to claim 2, characterized in that: The driving assembly (3) comprises a motor (31) arranged on the supporting seat (1); a driving rod (32) is arranged at the output end of the motor (31); the driving rod (32) is fixedly connected to the conveyor belt (2); a first gear (33) is sleeved on the driving rod (32); the first gear (33) is meshed with a second gear (34); and the second gear (34) is rotatably connected to the supporting seat (1).

4. The environmentally friendly regenerated activated carbon and its preparation method according to claim 3, characterized in that: The support assembly (4) comprises a first spring telescopic member (41) fixedly arranged on the support seat (1), and a reset rod (42) and an inclined block (43) are arranged on the output end of the first spring telescopic member (41).

5. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 4, characterized in that: The support assembly (4) further comprises a cross bar (44) fixedly connected to the conveyor belt (2), the cross bar (44) being provided with two clamping structures (45), the cross bar (44) being provided with a placement groove, a plurality of fourth spring telescopic members being respectively arranged in the two placement grooves, and two clamping blocks (49) being arranged at the output ends of the plurality of fourth spring telescopic members.

6. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 5, characterized in that: The clamping structure (45) comprises an outer frame (451) slidably arranged on the cross bar (44); a limiting groove (452) is provided on the outer frame (451); the outer frame (451) is fixedly connected to an output end of a second spring telescopic member (453); the second spring telescopic member (453) is fixedly arranged on the cross bar (44); a fifth spring telescopic member (410) is arranged on the outer frame (451); and a clamping plate (411) is arranged at the output end of the fifth spring telescopic member (410).

7. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 6, characterized in that: The two limit grooves (452) respectively correspond to the positions of the two ends of a support plate (46); two limit blocks (47) are fixedly arranged on the support plate (46); the two outer frames (451) respectively correspond to the positions of the two reset rods (42); and the two clamping blocks (49) respectively correspond to the positions of the two limit grooves (452) in a one-to-one correspondence.

8. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 7, characterized in that: The pushing assembly (6) comprises a rotating rod (61) rotatably connected to the second gear (34); the rotating rod (61) is rotatably connected to the support seat (1); and two pushing units (62) are sleeved on the rotating rod (61).

9. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 8, characterized in that: The pushing unit (62) comprises a winding shaft (621) sleeved on the rotating rod (61), one end of a wire (622) is connected to the winding shaft (621), and the other end of the wire (622) is fixedly connected to a pushing plate (623).

10. The environmentally friendly regenerated activated carbon and the preparation method thereof according to claim 9, characterized in that: The push plate (623) is slidably connected within a telescopic sleeve (624), the telescopic sleeve (624) is fixedly arranged on the support seat (1), two spring members (625) are arranged in the telescopic sleeve (624), the wire (622) passes through the telescopic sleeve (624), a limit plate (626) is arranged at one end of the push plate (623) away from the wire (622), the limit plate (626) corresponds to the position of two trigger blocks (627), the two trigger blocks (627) are respectively arranged at the output ends of two third spring telescopic members (628), and the two third spring telescopic members (628) are both fixed on the support seat (1).

Citation Information

Patent Citations

  • Turnover and emptying mechanism of seed germination particle filler

    CN111977402A

  • Preparation process of activated carbon particles

    CN112675812A

  • Auxiliary discharging platform of injection molding machine for ribbon processing

    CN113146975A

  • Crawler-type intelligent packaging device and method

    CN115504018A

  • Automatic feeding device for ferrosilicon production

    CN211732939U