CN108163568B - Environment-friendly shaking-free positioning type powder bulk loading head - Google Patents
Environment-friendly shaking-free positioning type powder bulk loading head Download PDFInfo
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- CN108163568B CN108163568B CN201810105386.0A CN201810105386A CN108163568B CN 108163568 B CN108163568 B CN 108163568B CN 201810105386 A CN201810105386 A CN 201810105386A CN 108163568 B CN108163568 B CN 108163568B
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- 239000000843 powder Substances 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 43
- 239000010959 steel Substances 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000001174 ascending effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000009960 carding Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G65/00—Loading or unloading
- B65G65/28—Piling or unpiling loose materials in bulk, e.g. coal, manure, timber, not otherwise provided for
Abstract
The invention discloses an environment-friendly shaking-free positioning type powder bulk loading head which is used for an intelligent unattended powder bulk loading system and mainly comprises the following parts: upper portion feed arrangement, middle part telescopic tube, lower part discharging device, lift actuating mechanism, sealing valve mechanism, rise limit switch, decline limit switch and feed inlet counterpoint induction system. The automatic feeding device can be flexible, does not shake when moving, comprises a discharging channel and a dust removing channel, can reflect whether the working position of the automatic feeding device is correct or not, can not transmit the acting force of external equipment to a tank truck metering system, and has a sealing valve plate to seal the discharging port after the charging is finished so as to avoid secondary dust emission.
Description
Technical Field
The invention relates to the field of powder bulk loading systems, in particular to an environment-friendly and shake-free positioning type powder bulk loading head.
Background
The bulk transportation of dry powder in industrial production has become a development trend. When the powder is loaded into the tank truck, the loading equipment is needed, the loading head is one of core components of the loading equipment, and the loading head has the functions of loading materials into tank trucks of different types and discharging gas in the tank truck through the loading head.
The expansion and contraction of the charging head commonly used at present are realized by 'putting and pulling' steel wire ropes of a hoisting mechanism, and the middle part is connected by a soft expansion sleeve. The loading head is not suitable for the operation of future intelligent unattended automatic loading equipment, and three reasons are as follows: firstly, the loading head can shake when doing plane movement, so that deviation occurs when the loading head is in butt joint with a feed inlet of the tank car, and loading efficiency is affected; secondly, the loading head cannot judge whether the loading head is smoothly connected with the feeding hole according to the requirement, and an automatic loading system cannot determine whether loading can be started; thirdly, when the loading head is lifted after loading, residual ash can leak out to pollute the environment because the outlet of the loading head is open. In order to solve the problems, it is necessary to design a novel loading head to meet the requirements of an intelligent unattended automatic loading system.
The invention aims to provide an environment-friendly shake-free positioning type powder bulk loading head which can be freely stretched and moved, does not shake, comprises a discharging channel and a dust removing channel, solves the dust removing problem in the loading process, can reflect whether the working position of the unloading channel is correct or not, can not transmit the acting force of external equipment to a tank truck metering system, and has a sealing valve plate to seal the discharging port after loading is finished so as to avoid secondary dust emission.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: comprises an upper feeding device, a middle telescopic tube, a lower discharging device, a lifting executing mechanism and a sealing valve mechanism; the upper feeding device comprises an outer cylinder body, a material inlet is arranged on the side wall of the outer cylinder body, and an inner cylinder body positioned in the outer cylinder body is communicated with the material inlet; the middle telescopic sleeve comprises an inner telescopic sleeve and an outer telescopic sleeve; the lower discharging device comprises an outer cone bucket and an inner steel sleeve which can slide relatively, and two sealing valve plates which can be matched and block the outlet of the inner steel sleeve are hinged to the middle part of the bottom of the inner steel sleeve; the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve are sequentially and fixedly communicated to form a blanking channel, the outer cylinder body, the outer telescopic sleeve and the outer cone bucket are sequentially and fixedly communicated to form an annular dust removing channel, and a dust-containing gas outlet communicated with the dust removing channel is arranged on the outer cylinder body; the lifting actuating mechanism comprises a left cylinder and a right cylinder which are fixed on the inner wall of the outer cylinder body, piston rods of the left cylinder and the right cylinder are downward, and joint connectors are fixed at the end parts of the piston rods; guide rails corresponding to the positions of the joint connectors are respectively arranged on two sides of the inner wall of the outer cone hopper, and the two joint connectors are respectively matched with the corresponding guide rails in a sliding guide manner; the sealing valve mechanism comprises fixed pulleys arranged on two sides of the inner wall of the outer cone, and movable pulleys and cylinders fixed on each joint; and each cylinder is fixedly provided with a steel wire rope, and the other end of the steel wire rope sequentially bypasses the corresponding fixed pulley and the corresponding movable pulley and is then fixed at the movable end of the corresponding sealing valve.
Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: the joint connectors are provided with descending limit switches; and a piston rod of the air cylinder is provided with an ascending limit switch.
Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: the device comprises a plurality of force transducers which are uniformly distributed on the same horizontal plane at the edge of the lower opening of the outer cone.
Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: the lower opening part of the outer cone hopper is provided with a rubber protection pad, and the force transducers are embedded in the rubber protection pad.
Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: the parts of the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve, which are connected with each other, and the parts of the outer cylinder body, the outer telescopic sleeve and the outer cone bucket, which are connected with each other, are fixedly connected through anchor clamps.
Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: the pulley blocks are arranged at the positions, corresponding to the opening parts, of the two sides of the inner wall of the outer cone hopper, of the steel ropes, and the steel ropes are fixed at the movable ends of the corresponding sealing valves after bypassing the corresponding movable pulleys in sequence and then bypassing the corresponding pulley blocks.
The environment-friendly shaking-free positioning type powder bulk loading head consists of the following main parts: the device comprises an upper feeding device, a middle telescopic tube, a lower discharging device, a lifting execution cylinder, a sealing valve mechanism, a lifting limit switch, a descending limit switch and a material port alignment sensing device.
The upper feeding device is provided with a feeding hole and a dust-containing gas outlet, materials enter from the feeding hole, dust-containing gas generated in the loading process is discharged from the dust-containing gas outlet, cylinder mounting seats are respectively arranged on the left side and the right side of the inner wall of the outer cylinder body in the upper feeding device, and left and right cylinders are respectively arranged on the cylinder mounting seats.
The middle telescopic sleeve is divided into an inner telescopic sleeve and an outer telescopic sleeve, the inner telescopic sleeve and the outer telescopic sleeve are fixedly connected with corresponding parts of the upper feeding device and the lower discharging device through hoops, and the hoops are made of wear-resistant and heat-resistant chemical fiber material clamping bead rings.
The lower discharging device consists of an inner steel sleeve and an outer cone bucket, and the outer cone bucket is provided with a guide rail, a pulley seat for installing a fixed pulley and a movable pulley, a sensor seat, a rubber protection pad and other parts for assistance.
The lifting executing mechanism adopts two parallel left and right cylinders as the up-down running executing mechanism, the cylinders are arranged on the inner wall of an outer cylinder body in the upper feeding device, the end part of a piston rod of each cylinder is connected with a joint, a guide groove on the joint can slide along a guide rail on the lower discharging device, and the guide groove is connected with the sealing valve mechanism through a steel wire rope and drives the sealing valve mechanism to work.
The sealing valve mechanism consists of pulley block, steel wire rope, valve plate, etc. and has the functions of sealing the material outlet to prevent ash leakage and opening automatically for convenient feeding.
The lifting limit switch is arranged on the cylinder piston rod, and sends out a signal when the cylinder is lifted to a given position and stops the operation of the cylinder.
The descending limit switch is arranged on the joint connector, and when the cylinder descends to a given position, signals are sent out and the operation of the cylinder is stopped.
The material port alignment induction device consists of three force transducers which are uniformly distributed on the same horizontal plane at the edge of the lower port of the outer cone hopper, and only when the lower discharging device stably and correctly falls on the material inlet of the tank truck, the three force transducers can send out signals at the same time, so that the position of the material charging head can be confirmed to be correct, and the material charging can be started.
The working process of the invention is as follows:
the invention is moved to the upper side of the tank car feed inlet by the related operating mechanism, the left, right cylinder piston rod moves downward, the lower discharging device drops onto the tank car feed inlet slowly, if the force cell sensor has no error signal, the left, right cylinder piston rod continues to descend, the outer cone is supported by the tank car feed inlet and does not descend any more, the inner steel sleeve continues to descend under the action of gravity, after the inner steel sleeve is blocked by the retainer ring and cannot descend, the two sealing valve plates start to rotate downward until the discharge port channel is opened completely, at this time, the descending limit switch sends out the in-place signal to the left, right cylinder piston rod to stop descending; then the charging work starts, after the charging is completed, the left and right cylinders receive instructions, the cylinder piston rod starts to ascend, the sealing valve plate starts to rotate upwards under the pulling of the steel wire rope until the discharge hole is sealed, after that, the whole lower discharge device ascends upwards under the continuous pulling of the cylinder piston rod, after the charging is up to a specific height, the ascending limit switch sends out a signal, the cylinder piston rod stops moving, and the whole process is finished.
The invention is characterized in that:
1. the upper feeding device adopts a composite structure, the feeding and the exhausting are in the same device, and the position for installing the cylinder is reserved, so that the invention is more compact and beneficial to the connection with related movement mechanisms.
2. The double cylinders are adopted to execute lifting movement, and special joint connectors are designed to slide on the guide rails, so that the loading head is effectively ensured not to swing in the operation process, and the alignment accuracy and efficiency are improved.
3. The special pulley block device effectively shortens the stroke of the air cylinder, realizes flexible connection between the lower discharging device and the machine body, and blocks the influence of external force on the metering system of the tank truck. As can be easily understood from the drawings, when L < < H, R < < H (L: eccentricity in horizontal direction of the movable pulley and the fixed pulley, H: height difference between the movable pulley and the fixed pulley, R: radius of the movable pulley and the fixed pulley), if the moving distance of the movable pulley is S, the moving distance of the weight is about 3S; in the invention, when the joint on the cylinder piston rod moves S, one end of the steel wire rope connected with the sealing valve plate moves 3S, namely, the cylinder piston only runs for a small distance, the steel wire rope can release a length which is 3 times of the distance, and the difficult problem of the operation of the cylinder and the linkage of the sealing valve plate is effectively solved; meanwhile, as the steel wire rope is flexible, the pressure generated by the air cylinder and various forces generated by other related equipment cannot be transmitted to the tank truck, so that the influence on the metering system of the tank truck can be avoided.
4. And judging whether the loading head is correctly aligned on the feeding port of the tank truck. According to the invention, three force measuring sensors are uniformly distributed in the range of the circumferential ring of the feed inlet on the same plane at the lower part of the outer cone, and the position can be judged to be correct only when pressure signals are transmitted from the three sensors, so that the problem of judging whether the loading can be started is effectively solved.
Compared with the prior art, the invention has the beneficial effects that:
the intelligent unattended automatic loading device solves the technical problem of intelligent unattended automatic loading device, can ensure the accurate alignment of the loading device and the feed inlet of the tank truck, can not transfer the gravity of the device to the tank truck, is favorable for ensuring the metering precision, improves the reliability and the working efficiency of production, effectively prevents dust leakage, and avoids secondary pollution accidents.
Drawings
Fig. 1 is a schematic view of the charging process of the charging head of the present invention.
Fig. 2 is a structural view of the present invention in a normal state.
Fig. 3 is a sectional view taken along the direction B in fig. 2.
Fig. 4 is a structural view of the present invention in a loading state.
Fig. 5 is a cross-sectional view taken along the direction a in fig. 4.
Fig. 6 is an enlarged view of the bottom structure of the present invention.
Fig. 7 is an enlarged schematic diagram of the pulley block stroke.
Detailed Description
As shown in fig. 1.
The environment-friendly shake-free positioning type powder bulk loading head comprises an upper feeding device 1, a middle telescopic sleeve 3, a lower discharging device, a lifting executing mechanism and a sealing valve mechanism; the upper feeding device comprises an outer cylinder body 17, a material inlet 21 is arranged on the side wall of the outer cylinder body 17, and an inner cylinder body 18 positioned in the outer cylinder body is communicated with the material inlet 21; the middle telescopic tube comprises inner and outer telescopic sleeves 20 and 19; the lower discharging device comprises an outer cone bucket 7 and an inner steel sleeve 13 which can slide relatively, and two sealing valve plates 9 which can be matched and block the outlet of the inner steel sleeve are hinged at the middle part of the bottom of the inner steel sleeve; the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve are sequentially and fixedly communicated to form a blanking channel 23, the outer cylinder body, the outer telescopic sleeve and the outer cone are sequentially and fixedly communicated to form an annular dust removing channel 24, and the outer cylinder body 17 is provided with a dust-containing gas outlet 22 communicated with the dust removing channel; the lifting actuating mechanism comprises a left cylinder 2 and a right cylinder 2 which are fixed on the inner wall of the outer cylinder body, piston rods of the left cylinder 2 and the right cylinder 2 are downward, and joint connectors 4 are fixed at the end parts of the piston rods; guide rails 6 corresponding to the positions of the joint connectors 4 are respectively arranged on two sides of the inner wall of the outer cone, and the two joint connectors are respectively matched with the corresponding guide rails in a sliding guide manner; the sealing valve mechanism comprises fixed pulleys 8 arranged on two sides of the inner wall of the outer cone, and movable pulleys 25 and cylinders 27 fixed on each joint; a steel wire rope is fixed on each cylinder 27, and the other end of the steel wire rope sequentially bypasses the corresponding fixed pulley 8 and the corresponding movable pulley 25 and is then fixed at the movable end of the corresponding sealing valve 9.
The joint connectors 4 are provided with descending limit switches 15; the piston rod of the cylinder is provided with an ascending limit switch 16.
The device comprises a plurality of force transducers 12 which are uniformly distributed on the same horizontal plane at the edge of the lower opening of the outer cone.
The lower opening part of the outer cone is provided with a rubber protection pad 11, and the force transducer 2 is embedded in the rubber protection pad 11.
The parts of the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve, which are connected with each other, and the parts of the outer cylinder body, the outer telescopic sleeve and the outer cone bucket, which are connected with each other, are fixedly connected through the anchor ear 14.
The pulley blocks 26 are arranged at the positions, corresponding to the opening parts, of the two sides of the inner wall of the outer cone hopper, of the steel ropes, and the steel ropes are fixed at the movable ends of the corresponding sealing valves after bypassing the corresponding movable pulleys in sequence and then bypassing the corresponding pulley blocks.
During loading, the material 29 first enters from the material inlet and then falls into the tank truck 28 through the discharge channel, and at the same time, the dust-laden gas in the tank truck is discharged to the dust catcher through the dust-laden gas outlet through the dust catcher channel. The middle telescopic sleeve ensures that the charging head can be telescopic, thereby meeting the requirements of loading tank trucks with different heights.
The piston rod of the lifting execution cylinder is connected with the joint connector 4 through threads, and a chute at one side of the joint connector can slide on the guide rail 6, so that the piston rod of the cylinder can be prevented from rotating and swinging; the combined joint is provided with a pulley and a cylinder for tying the steel wire rope, one end of the steel wire rope 5 is tied on the cylinder and then bypasses the pulley block as shown in the figure, and the other end is fixed on the sealing valve plate 9 at the most ; the sealing valve plate is connected with a base on the inner steel sleeve through a hinge 10, and a limit switch seat is arranged on the joint connector and used for installing a descending limit switch 15; the ascending limit switch 16 is arranged at a specific position of the cylinder piston rod through a fixing frame; the load cell 10 is arranged at the bottom of the outer cone and is protected by a rubber protection pad 11.
The foregoing embodiments are merely preferred embodiments of the present invention, and other embodiments of the present invention are also possible. It should be noted that any obvious improvements and modifications shall fall within the protection scope of the present invention without departing from the concept of the present invention.
Claims (1)
1. Environment-friendly and shake-free positioning type powder bulk loading head is characterized in that: comprises an upper feeding device, a middle telescopic tube, a lower discharging device, a lifting executing mechanism and a sealing valve mechanism; the upper feeding device comprises an outer cylinder body, a material inlet is arranged on the side wall of the outer cylinder body, and an inner cylinder body positioned in the outer cylinder body is communicated with the material inlet; the middle telescopic sleeve comprises an inner telescopic sleeve and an outer telescopic sleeve; the lower discharging device comprises an outer cone bucket and an inner steel sleeve which can slide relatively, and two sealing valve plates which can be matched and block the outlet of the inner steel sleeve are hinged to the middle part of the bottom of the inner steel sleeve; the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve are sequentially and fixedly communicated to form a blanking channel, the outer cylinder body, the outer telescopic sleeve and the outer cone bucket are sequentially and fixedly communicated to form an annular dust removing channel, and a dust-containing gas outlet communicated with the dust removing channel is arranged on the outer cylinder body; the lifting actuating mechanism comprises a left cylinder and a right cylinder which are fixed on the inner wall of the outer cylinder body, piston rods of the left cylinder and the right cylinder are downward, and joint connectors are fixed at the end parts of the piston rods; guide rails corresponding to the positions of the joint connectors are respectively arranged on two sides of the inner wall of the outer cone hopper, and the two joint connectors are respectively matched with the corresponding guide rails in a sliding guide manner; the sealing valve mechanism comprises fixed pulleys arranged on two sides of the inner wall of the outer cone, and movable pulleys and cylinders fixed on each joint; a steel wire rope is fixed on each cylinder, and the other end of the steel wire rope sequentially bypasses the corresponding fixed pulley and the corresponding movable pulley and is then fixed at the movable end of the corresponding sealing valve;
the joint connectors are provided with descending limit switches; a piston rod of the air cylinder is provided with an ascending limit switch;
the environment-friendly shaking-free positioning type powder bulk loading head also comprises a material port corresponding sensing device, wherein the sensing device comprises a plurality of force transducers which are uniformly distributed on the same horizontal plane at the edge of the lower port of the outer cone;
the lower opening part of the outer cone hopper is provided with a rubber protection pad, and the force transducers are embedded in the rubber protection pad;
the parts of the inner cylinder body, the inner telescopic sleeve and the inner steel sleeve, which are connected with each other, are fixedly connected with each other through anchor clamps;
the pulley blocks are arranged at the positions, corresponding to the opening parts, of the two sides of the inner wall of the outer cone hopper, of the steel wire rope, and the steel wire rope is fixed at the movable end of the corresponding sealing valve after bypassing the corresponding movable pulley block after bypassing the corresponding pulley block in sequence;
the charging head moves to the position above the feeding hole of the tank truck, the left and right cylinder piston rods move downwards, the lower discharging device slowly falls onto the feeding hole of the tank truck, if the force sensor has no error signal, the left and right cylinder piston rods continue to descend, the outer cone bucket is supported by the feeding hole of the tank truck and does not descend any more, the inner steel sleeve continues to descend under the action of gravity, after the inner steel sleeve is blocked by the retaining ring and cannot descend, the two sealing valve plates start to rotate downwards until the discharging hole channel is completely opened, the descending limit switch sends out an in-place signal, and the left and right cylinder piston rods stop descending; then starting the charging operation, after the charging is completed, the left and right cylinders receive instructions, the left and right cylinder piston rods start to ascend, the sealing valve plate starts to rotate upwards under the pulling of the steel wire rope until the discharge hole is sealed, then under the continuous pulling of the left and right cylinder piston rods, the whole lower discharge device ascends upwards, after the left and right cylinder piston rods ascend to a specific height, the ascending limit switch sends out signals, the left and right cylinder piston rods stop moving, and the whole process is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105386.0A CN108163568B (en) | 2018-02-02 | 2018-02-02 | Environment-friendly shaking-free positioning type powder bulk loading head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810105386.0A CN108163568B (en) | 2018-02-02 | 2018-02-02 | Environment-friendly shaking-free positioning type powder bulk loading head |
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| Publication Number | Publication Date |
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| CN108163568A CN108163568A (en) | 2018-06-15 |
| CN108163568B true CN108163568B (en) | 2024-01-30 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573652B (en) * | 2019-01-25 | 2024-02-27 | 武汉宇格电力设备有限公司 | Bulk head of dry slag bulk machine |
| CN115477982A (en) * | 2022-10-12 | 2022-12-16 | 泸州老窖股份有限公司 | A unloader that is used for bent powder in starter propagation workshop |
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| DE202005015581U1 (en) * | 2005-10-05 | 2005-12-29 | Ernst Steenbock & Sohn Kg | Loading system for silos e.g. by silo trucks has flexible hose fixed with inner walls of two guiding components whereby upper guiding component serves as outlet and lower guiding component carries end piece as filling cone |
| CN202558297U (en) * | 2012-05-30 | 2012-11-28 | 哈尔滨广润环保设备技术开发有限公司 | Bulk cargo dust keeper applied to truck loading and shipment of bulk cargo |
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| CN105129453A (en) * | 2015-07-27 | 2015-12-09 | 江苏绿叶机械有限公司 | Discharging device of bulk machine |
| CN205708976U (en) * | 2016-04-07 | 2016-11-23 | 天伟水泥有限公司 | A kind of bulk cement dustless loading device |
| CN208037569U (en) * | 2018-02-02 | 2018-11-02 | 合肥水泥研究设计院有限公司 | Environmental protection is loaded in bulk head without location type powder is shaken |
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2018
- 2018-02-02 CN CN201810105386.0A patent/CN108163568B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625360Y (en) * | 2003-07-23 | 2004-07-14 | 段接柱 | Powder material discharging device |
| DE202005015581U1 (en) * | 2005-10-05 | 2005-12-29 | Ernst Steenbock & Sohn Kg | Loading system for silos e.g. by silo trucks has flexible hose fixed with inner walls of two guiding components whereby upper guiding component serves as outlet and lower guiding component carries end piece as filling cone |
| CN202558297U (en) * | 2012-05-30 | 2012-11-28 | 哈尔滨广润环保设备技术开发有限公司 | Bulk cargo dust keeper applied to truck loading and shipment of bulk cargo |
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| CN108163568A (en) | 2018-06-15 |
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