CN111099381A - Anti-blocking device for discharging of wet powder - Google Patents

Anti-blocking device for discharging of wet powder Download PDF

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Publication number
CN111099381A
CN111099381A CN201911350250.7A CN201911350250A CN111099381A CN 111099381 A CN111099381 A CN 111099381A CN 201911350250 A CN201911350250 A CN 201911350250A CN 111099381 A CN111099381 A CN 111099381A
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CN
China
Prior art keywords
wet powder
powder
funnel
wall
discharging
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Application number
CN201911350250.7A
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Chinese (zh)
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CN111099381B (en
Inventor
高广林
姬俊锋
王振
王刚
岳海丰
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Henan Fengbao Special Steel Co ltd
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Henan Fengbao Special Steel Co ltd
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Priority to CN201911350250.7A priority Critical patent/CN111099381B/en
Publication of CN111099381A publication Critical patent/CN111099381A/en
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Publication of CN111099381B publication Critical patent/CN111099381B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/30Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34Emptying devices
    • B65G65/40Devices for emptying otherwise than from the top
    • B65G65/42Devices for emptying otherwise than from the top using belt or chain conveyors

Abstract

The invention discloses a wet powder blanking anti-blocking device which comprises a powder funnel and a transmission belt, wherein the lower end of the powder funnel is a conical funnel, the transmission belt is arranged at a position with a distance D below an outlet at the lower end of the conical funnel, and the distance D is 5-30 centimeters. Compared with the prior art, the anti-blocking device for discharging wet powder, provided by the invention, has the advantages that the conveying belt arranged in the discharging device runs at a speed capable of keeping adhesive force generated between wet powder, the adhesive force between the wet powder and the inner wall of the discharging device is overcome by utilizing the adhesive force between the wet powder, so that the wet powder close to the inner wall of the discharging device can slide down onto the conveying belt, the phenomenon that the discharging device is blocked due to the fact that wet powder raw materials are bonded on the inner wall of the discharging device is solved, the material conveying efficiency is improved, meanwhile, the link that workers manually clean the blocked material opening is reduced, and the consumption of manpower and material resources is reduced.

Description

Anti-blocking device for discharging of wet powder
Technical Field
The invention relates to the field of material conveying machinery, in particular to a wet powder blanking anti-blocking device.
Background
A large amount of raw materials are needed to be supplied in the production process of iron-making industrial enterprises, and in order to meet the production requirements, a large amount of trucks can enter a factory to unload and transfer the raw materials. In the transportation process of implementing the goods material, because the goods material is mainly the wet powder raw materials, there is the adhesion between the raw materials granule, produces the bonding phenomenon and then blocks up unloader at the unloader inner wall easily, needs the workman to solve blocking phenomenon with the manual digging of crowbar and disclose the feed opening, has influenced the efficiency of the work of unloading.
Disclosure of Invention
The invention provides a wet powder blanking anti-blocking device, aiming at solving the technical problem that wet powder is easy to be bonded on the inner wall of a blanking device to block the blanking device in the prior art, and aiming at overcoming the bonding between the inner wall and the wet powder by using the adhesive force generated between the wet powder, so as to solve the problem that the blanking device is blocked due to the adhesion of the wet powder to the inner wall.
The specific situation that the problems exist in the prior art is shown in fig. 3, when the blanking operation is carried out, wet powder raw materials enter a blanking device, certain space exists below a conical funnel outlet of wet powder in a shaft area of the blanking device, the wet powder moves in a free falling mode at a high speed and falls to a preset collecting position, and meanwhile, the other part of the wet powder close to the inner wall of the blanking device is attached to the inner wall of the blanking device due to the viscosity of the wet powder. At the moment, the falling speed of the wet powder in the middle shaft area of the powder funnel is high, only sliding friction force exists between the wet powder and the wet powder attached to the inner wall of the blanking device, and the resultant force of the downward sliding friction force and the self gravity of the wet powder attached to the inner wall of the blanking device is difficult to overcome the resultant force of the adhesive force and the static friction force between the wet powder attached to the inner wall of the blanking device and the inner wall of the blanking device, so that the wet powder attached to the inner wall of the blanking device cannot be normally blanked, and the blockage phenomenon is further generated due to accumulation.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a wet powder unloading anti-clogging device, includes powder funnel, transmission belt, powder funnel lower extreme is the cone funnel, sets up transmission belt at the below of cone funnel lower extreme export position that the distance is D, and D is 5 to 30 centimeters.
According to the anti-blocking device for discharging the wet powder, the side edge of the conical hopper outlet and the side edge opposite to the transmission direction of the transmission belt are provided with the baffles, and the outlet is arranged in the direction consistent with the transmission direction of the transmission belt.
The anti-blocking device for discharging wet powder has the beneficial effects that the conveying belt arranged in the discharging device runs at a speed capable of keeping adhesive force generated between wet powder, the adhesive force between the wet powder and the inner wall of the discharging device is overcome by utilizing the adhesive force between the wet powder, so that the wet powder close to the inner wall of the discharging device can slide down to the conveying belt, the phenomenon that the discharging device is blocked due to the fact that wet powder raw materials are bonded on the inner wall of the discharging device is solved, the material conveying efficiency is improved, meanwhile, the link of manually cleaning the blocked material opening by workers is reduced, and the consumption of manpower and material resources is reduced.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic view along line a-a in fig. 1.
Fig. 3 is a schematic view of a blanking situation in the prior art.
Fig. 4 is an enlarged schematic view of the blanking condition of the area B when the blanking device is in normal operation.
Wherein, 1 is a powder funnel; 2 is a conical funnel outlet; 3 is a fence; 4 is a conveying belt; 5 is an outlet; 6 is the inner wall of the blanking device.
Detailed Description
The technical scheme of the invention is further described in detail by combining the following drawings.
As shown in fig. 1-4, a device for preventing blockage in discharging wet powder comprises: powder funnel 1, powder funnel 1 lower extreme is the cone funnel, sets up transmission belt 4 at the position that the lower extreme distance of cone funnel export 2 is D, D be 5 to 30 centimeters. According to the principle of powder mechanics, adhesive force exists among powder particles, and when the powder particles are small, the powder particles are easy to agglomerate due to the existence of the adhesive force. The adhesion between particles includes van der waals forces, electrostatic attraction, moisture capillary forces, magnetic forces, mechanical gripping forces, and the like. By utilizing the adhesive force between the wet powder bodies, part of the wet powder bodies adhered to the inner wall 6 of the feeding device in the powder funnel 1 slide down to the conveying belt 4 at the lower end of the powder funnel 1 along the inner wall 6 of the feeding device under the action of the adhesive force and the friction force of the wet powder bodies far away from the inner wall in the middle shaft area, so that the anti-blocking function is realized.
The side of the conical funnel outlet 2 and the side facing the transmission direction of the transmission belt 4 are provided with the enclosure 3, and the outlet 5 is arranged in the direction consistent with the transmission direction of the transmission belt 4, so that the moving direction of the wet powder is consistent with the transmission direction of the belt, and the wet powder is prevented from scattering to other directions to cause waste and pollution.
The working process of the invention is as follows:
when the unloading is carried out, the wet powder raw materials enter the powder funnel 1, when the unloading device shown in fig. 4 enters normal operation, the wet powder gradually fills the space between the lower end of the conical funnel outlet 2 and the transmission belt 4, and the wet powder falls onto the transmission belt 4, because the wet powder is accumulated in the powder funnel 1 and the enclosure 3, and a gradually increased friction force exists between the wet powder and the transmission belt 4, so that the wet powder on the transmission belt 4 can be displaced along with the movement of the transmission belt 4. Meanwhile, as the falling speed of the wet powder in the central axis region of the powder funnel 1 is reduced and the relative speed between the wet powder and the wet powder attached to the inner wall 6 of the blanking device is extremely low, the adhesive force and the static friction force exist between the wet powder, and almost no adhesive force and static friction force exist between the wet powder in the central axis region of the powder funnel 1 and the wet powder attached to the inner wall 6 of the blanking device in the prior art. Because of the existence of the adhesive force and the static friction force, the wet powder adhered to the inner wall 6 of the blanking device is subjected to the downward adhesive force, the static friction force and the self gravity of the wet powder in the central axis area and the downward adhesive force generated by the wet powder sliding out of the conical hopper outlet 2, the resultant force of the wet powder adhered to the inner wall 6 of the blanking device is larger than the downward resultant force of the sliding friction force and the self gravity of the wet powder adhered to the inner wall 6 of the blanking device in the prior art, the downward resultant force of the wet powder adhered to the inner wall 6 of the blanking device can overcome the resultant force of the adhesive force and the static friction force between the wet powder and the inner wall 6 of the blanking device, the wet powder adhered to the inner wall 6 of the blanking device is subjected to the downward direction of the total resultant force, so that the wet powder adhered to the inner wall 6 of the blanking device slides down along the inner wall 6 of the blanking device and leaves the conical hopper, is transmitted to a preset position through the outlet 5, and the enclosure 3 arranged around the conical hopper outlet 2 can prevent the wet powder from scattering to other directions except the transmission direction of the transmission belt 4 to cause waste and pollution.
The running speed of the transmission belt 4 needs to be adapted to the speed of the wet powder sliding down, so that the wet powder sliding down out of the conical hopper outlet 2 and the wet powder still existing in the powder hopper 1 always keep adhesive force.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.

Claims (2)

1. The utility model provides a wet powder unloading anti-clogging device, includes powder funnel, and powder funnel lower extreme is the taper funnel, its characterized in that: and a transmission belt is arranged at the position with the distance D from the lower end of the outlet of the conical funnel, and the distance D is 5-30 cm.
2. The device for preventing blockage in discharging of wet powder as claimed in claim 1, wherein: the side edge of the conical funnel outlet and the side edge which is opposite to the transmission direction of the transmission belt are provided with a baffle, and the outlet is arranged in the direction consistent with the transmission direction of the transmission belt.
CN201911350250.7A 2019-12-24 2019-12-24 Anti-blocking method for blanking of wet powder Active CN111099381B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911350250.7A CN111099381B (en) 2019-12-24 2019-12-24 Anti-blocking method for blanking of wet powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911350250.7A CN111099381B (en) 2019-12-24 2019-12-24 Anti-blocking method for blanking of wet powder

Publications (2)

Publication Number Publication Date
CN111099381A true CN111099381A (en) 2020-05-05
CN111099381B CN111099381B (en) 2021-10-26

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011946A1 (en) * 2003-08-01 2005-02-10 T-Systems Australia Pty Ltd Relocatable reclaiming plant and process
CN203512704U (en) * 2013-09-18 2014-04-02 婴舒宝(中国)有限公司 Powder discharging mechanism
CN203753866U (en) * 2014-04-08 2014-08-06 安徽工业大学 Anti-tear anti-blocking device based on wireless transmission type belt conveyor
CN205797750U (en) * 2016-07-01 2016-12-14 济宁市丰鹏工程设备有限公司 Blockage resisting sand sieving machine hopper
CN206013523U (en) * 2016-08-25 2017-03-15 嘉华特种水泥股份有限公司 A kind of adhesional wetting materiel ingredient sector
CN209127452U (en) * 2018-12-06 2019-07-19 长沙开元仪器有限公司 A kind of belt fairing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005011946A1 (en) * 2003-08-01 2005-02-10 T-Systems Australia Pty Ltd Relocatable reclaiming plant and process
CN203512704U (en) * 2013-09-18 2014-04-02 婴舒宝(中国)有限公司 Powder discharging mechanism
CN203753866U (en) * 2014-04-08 2014-08-06 安徽工业大学 Anti-tear anti-blocking device based on wireless transmission type belt conveyor
CN205797750U (en) * 2016-07-01 2016-12-14 济宁市丰鹏工程设备有限公司 Blockage resisting sand sieving machine hopper
CN206013523U (en) * 2016-08-25 2017-03-15 嘉华特种水泥股份有限公司 A kind of adhesional wetting materiel ingredient sector
CN209127452U (en) * 2018-12-06 2019-07-19 长沙开元仪器有限公司 A kind of belt fairing

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