CN215997095U

CN215997095U - Boiling dust-removing hopper

Info

Publication number: CN215997095U
Application number: CN202122629456.2U
Authority: CN
Inventors: 藤坂祐宏; 周建庆; 林锦; 叶琦
Original assignee: Kawata Machinery Manufacturing Shanghai Co ltd
Current assignee: Kawata Machinery Manufacturing Shanghai Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-11
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a boiling dust removal hopper, boiling dust removal hopper's bottom the opening has, open-ended lower part installation relief valve, the relief valve have the correspondence the boiling air cock that the opening set up, the boiling air cock have an air cock main part, the air cock main part include first gas pocket and center on the several second gas pocket that first gas pocket set up, first gas pocket and second gas pocket all from last to running through the setting down, first gas pocket set up and be in the central position of air cock main part, the lower part of boiling air cock set up first compressed air passageway, compressed air gets into behind first electrostatic eliminator in the first compressed air passageway. The utility model discloses a boiling dust removal hopper, the boiling air cock is installed to the bottom, compact structure, and it is convenient to maintain to the material in the hopper is fully blown out, is favorable to the material come-up height, and dust collection efficiency reaches the best.

Description

Boiling dust-removing hopper

Technical Field

The utility model belongs to the boiling dust removal field relates to a boiling hopper, concretely relates to boiling dust removal hopper.

Background

In the powder and granular material processing industry, conveying the powder and granular materials by wind power of a fan is a common conveying mode.

However, during the transportation process, the collision and friction between the powder particles and the wall of the transportation pipe can generate material particles and dust, and these products can have adverse effects on the yield of product molding.

Typically, these particles and powders are removed by a boiling hopper after the transfer is completed. The dust removal of the boiling hopper is generally to convey wind power into the hopper, so that the materials in the hopper are continuously overturned to reach a boiling state. In the production occasions with high requirements in the optical industry and the like, the optical material is high in hardness and fragile, and the control of wind power, boiling height and force during boiling becomes important.

In addition, the material still can produce static in transportation process, makes dust and material, hopper inner wall produce the electrostatic adsorption power, and this kind of dust with static is difficult to blow clean by fan wind-force light.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims at providing a boiling dust removal hopper that dust collection efficiency is high promptly.

For solving prior art's problem, the utility model provides a boiling dust removal hopper, its key feature is, the bottom of boiling dust removal hopper the opening has, open-ended lower part installation bleeder valve, the bleeder valve correspond the boiling air cock that the opening set up, the boiling air cock have the air cock main part, the air cock main part include first gas pocket and center on the several second gas pocket that first gas pocket set up, first gas pocket and second gas pocket all from last to running through the setting down, first gas pocket set up the central position of air cock main part, the lower part of boiling air cock set up first compressed air passageway, compressed air gets into behind first electrostatic eliminator in the first compressed air passageway.

Preferably, the upper part of the boiling dust removal hopper is provided with a filter screen, an exhaust port and a feed port, the exhaust port is positioned above the filter screen, the feed port is positioned below the filter screen, and the feed port is arranged along the tangential direction of the upper part of the boiling dust removal hopper; the bottom of the boiling dust removal hopper is also provided with a conical section, the conical section is positioned above the opening, the conical section is provided with an air inlet, and a second static eliminator is arranged at the air inlet.

Preferably, the discharge valve is a draw plate type discharge valve or a rotary type discharge valve.

Preferably, the boiling dust removal hopper comprises a dust removal area, a separation area and an electrostatic neutralization area from top to bottom in sequence, and the electrostatic neutralization area is provided with a level meter.

Preferably, each of the first and second air holes has a channel and an upper necked-out portion at an upper end of the channel.

Preferably, the upper flaring part is arranged in a circular truncated cone shape.

Preferably, the lower end of the first air hole channel is provided with a lower expanding neck part, and the maximum inner diameter of the upper expanding neck part at the upper end of the first air hole channel is smaller than that of the lower expanding neck part at the lower end of the channel.

Preferably, the plurality of second air holes are uniformly arranged around the first air hole.

Preferably, the air faucet main body is provided with at least three second air holes.

Preferably, the air cock main part include air cock main part and lower air cock main part, the both sides of last air cock main part set up the mounting hole, the upper surface of last air cock main part be the protruding cambered surface, the maximum diameter of last air cock main part be less than the maximum diameter of lower air cock main part.

The utility model discloses a boiling dust removal hopper, the boiling air cock is installed to the bottom, compact structure, and it is convenient to maintain to the material in the hopper is fully blown out, is favorable to the material come-up height, and dust collection efficiency reaches the best.

Drawings

Fig. 1 is a schematic structural diagram of a boiling air nozzle in a boiling dust removal hopper according to the present invention.

Fig. 2 is a sectional view taken along a-a in fig. 1.

Fig. 3 is a top view of the boiling air nozzle in the boiling dust removing hopper of the present invention.

Fig. 4 is a schematic structural diagram of a first embodiment of the boiling dust removing hopper of the present invention.

Fig. 5 is a schematic view of a portion of the bottom of the first embodiment of the ebullient dust removal hopper of the present invention of fig. 4.

Fig. 6a is a schematic structural diagram of a discharge valve in a boiling dust removing hopper according to the present invention when the discharge valve is closed.

Fig. 6b is a schematic structural diagram of the discharge valve in the boiling dust removing hopper of the present invention when it is opened.

Fig. 7a is a schematic structural diagram of a first embodiment of the boiling dust removing hopper of the present invention when conveying materials.

Fig. 7b is a schematic structural diagram of the first embodiment of the boiling dust removing hopper of the present invention at the end of material conveying.

Fig. 7c is a schematic structural diagram of the first embodiment of the boiling dust removing hopper of the present invention when boiling.

Fig. 7d is a schematic structural diagram of the first embodiment of the boiling dust removing hopper of the present invention during discharging.

Fig. 7e is a schematic structural diagram of the first embodiment of the boiling dust removing hopper of the present invention during cleaning.

Fig. 8a is a schematic view of a first embodiment of the boiling dust removing hopper of the present invention.

Fig. 8b is a second schematic structural view of a second embodiment of the boiling dust-removing hopper of the present invention.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in FIGS. 4 to 5, the present invention provides a boiling dust removing hopper according to a first embodiment. The bottom of the boiling dust removing hopper 9 is provided with an opening 13, the lower part of the opening 13 is provided with a discharge valve, and the discharge valve is provided with a boiling air nozzle 10 which is arranged corresponding to the opening. In this first embodiment, boiling gas nozzles 10 are mounted in a rotary discharge valve comprising a valve body 14 and a cylinder 12 connected to the valve body 14, wherein the boiling gas nozzles 10 are mounted directly in the valve body 14. When the boiling dust removal is carried out, the air cylinder 12 controls the boiling air nozzle to be positioned at the lower part of the opening 13 (as shown in the state of figure 6 a), and the discharge valve is closed; when discharging is required after dust removal is finished, the cylinder 12 is controlled to rotate and move the valve body 14 away, and the discharge valve is opened to expose the opening 13 for discharging (as shown in fig. 6 b).

As shown in fig. 8a to 8b, the boiling nozzle 10 of the present invention may be installed in a suction plate type discharge valve 27. When the boiling dust removal is performed, the suction plate type discharge valve 27 controls the boiling air tap 10 to be positioned at the lower part of the opening 13 (as shown in the state of fig. 8 b), and the discharge valve is closed; when discharging is needed after dust removal, the drawing plate type discharging valve 27 controls to remove the boiling air tap 10, and the discharging valve is opened to expose the opening 13 for discharging (as shown in fig. 8 a).

The utility model discloses well boiling air cock and the integrative design of blow-off valve, boiling and destaticizing many times, it is more thorough to remove dust, compact structure, and it is convenient to maintain. Hereinafter, a first embodiment of the boiling dust removing hopper of the present invention will be described in detail as an example.

As shown in fig. 1 to 3, a detailed structure of a boiling air nozzle 10 in a first embodiment of the boiling dust removing hopper of the present invention is shown. Boiling air cock 10 have the air cock main part, the air cock main part include air cock main part 1 and lower air cock main part 2, the both sides of last air cock main part 1 set up mounting hole 5 to install in the bleeder, the upper surface of last air cock main part 1 be protruding cambered surface, the maximum diameter of last air cock main part 1 be greater than the maximum diameter of lower air cock main part, the installation of the air cock main part of being convenient for.

As shown in fig. 1-3, the air faucet body comprises a first air hole 3 and four second air holes 4 surrounding the first air hole 3, the first air hole 3 and the second air holes 4 are arranged from top to bottom in a penetrating manner, and the first air hole 3 is arranged in the central position of the air faucet body.

As shown in fig. 2, the first air hole 3 has a passage 6 and an upper flared portion 7 at the upper end of the passage. The second air hole 3 also has a channel and an upper necked-out portion at an upper end of the channel. The lower end of the channel of the first air hole 3 is also provided with a lower expanded neck part 8, wherein the maximum inner diameter of the upper expanded neck part 7 at the upper end of the channel of the first air hole is smaller than the maximum inner diameter of the lower expanded neck part 8 at the lower end of the channel.

As shown in FIGS. 2 to 3, the neck-expanding portions of the first air hole and the second air hole are both disposed in a circular truncated cone shape.

As shown in FIGS. 4-5, the boiling dust removal hopper sequentially comprises a dust removal area 17, a separation area 18 and an electrostatic neutralization area 19 from top to bottom, and a level indicator 20 is arranged in the electrostatic neutralization area 19.

When the amount of material is too large, dust removal is not facilitated. When the amount of the material is too small, the dust removal processing capacity per unit time is lowered. The utility model discloses a charge level indicator 20 can adopt following using-way:

according to the unit time consumption and the boiling effect of the material, after the boiling amount of the material is confirmed manually, the material level indicator is fixed at the position just above the material, which is just empty cup/full. Then, if the feeding cups are full, the next conveying time is automatically adjusted downwards; when the empty cup signal continuously appears, the next conveying time is automatically adjusted upwards in a fine mode. The alarm is used for ensuring that the conveying quantity is always kept in a proper interval, and when the conveying time reaches a certain percentage or below a preset value, an alarm is output to confirm whether poor conveying, air leakage and the like exist.

A filter screen 23, an exhaust port 24 and a feed port 25 are arranged at the upper part of the boiling dust removing hopper, the exhaust port 24 is positioned above the filter screen 23, the feed port 25 is positioned below the filter screen 23, and the feed port 25 is arranged along the tangential direction of the upper part of the boiling dust removing hopper, so that materials and conveying air enter the inner cavity of the boiling dust removing hopper along the tangential direction to form spiral airflow and improve the dust removing effect; the bottom of the boiling dust removing hopper is also provided with a conical section 15, and the conical section 15 is positioned above the opening 13.

In the boiling dust removing hopper of the utility model, a first compressed air channel 11 is arranged at the lower part of the boiling air nozzle 10, and compressed air enters the first compressed air channel 11 after passing through a first static eliminator 22; the conical section 15 is provided with an air inlet 16, a second static eliminator 21 is arranged at the air inlet 16, and compressed air enters the air inlet 16 through the second static eliminator 21. The static-removed compressed air enters the boiling air nozzle 10 through the first compressed air channel 11 and enters the conical section through the air inlet 16, so that air flow enters the inner cavity of the boiling dust removal hopper 9, materials in the inner cavity are fully blown and dispersed, and the dust removal efficiency is optimal; in addition, the electrostatic eliminator continuously releases ionized air, the charge on the surfaces of the material and the dust can be neutralized by adding the ionic gas, the purpose of eliminating the Lorentz force of the material and the dust is achieved, and the dust in the material can be removed more thoroughly by boiling at the moment. The air flow boiling height can be adjusted according to the material characteristics, and high-efficiency dust removal is realized.

Furthermore, the utility model discloses a boiling dust removal hopper is at the electrostatic precipitator in-process, also can select to close air inlet 16, only uses first compressed air passageway.

The fan used in the compressed air can adopt a variable frequency fan. When the fan is used for conveying, large air volume is needed; when the auxiliary dust suction is carried out for the boiling action, only small wind power is needed. Can make a round trip to switch the amount of wind through the frequency conversion fan, and all can infinitely variable control.

As shown in fig. 7a to 7e, the schematic diagrams of the first embodiment of the boiling dust removing hopper of the present invention in specific use respectively include material conveying, material conveying completion, boiling, material discharging, and cleaning. As shown in fig. 7a, when materials are conveyed, the conveying fan is turned on, the materials enter from the feeding hole 25, and conveying tail gas passes through the filter screen 23 and is discharged from the exhaust hole 24; when the amount of material reaches a certain level, the level gauge 20 responds and the feed port 25 stops delivering material, as shown in fig. 7 b; as shown in fig. 7c, the air volume of the blower is adjusted, the compressed air enters the inner cavity of the hopper from the boiling air tap 10 and the air inlet 16 through static elimination respectively, the boiling starts, and the tail gas is discharged from the air outlet 24 through the filter screen 23; after boiling, as shown in fig. 7d, the discharge valve is actuated to open the bottom opening of the hopper and discharge; after completion of the discharge, the discharge valve is actuated to close the bottom opening of the hopper and perform a compressed air purge, as shown in fig. 7 e.

In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. The utility model provides a boiling dust removal hopper, its characterized in that, boiling dust removal hopper's bottom the opening has, open-ended lower part installation bleeder valve, the bleeder valve have the correspondence the boiling air cock that the opening set up, the boiling air cock have an air cock main part, the air cock main part include first gas pocket and center on the several second gas pocket that first gas pocket set up, first gas pocket and second gas pocket all from last to running through the setting down, first gas pocket set up and be in the central point of air cock main part put, the lower part of boiling air cock set up first compressed air passageway, compressed air gets into behind first static eliminator in the first compressed air passageway.

2. The boiling dust removing hopper as claimed in claim 1, wherein a filter screen, an exhaust port and a feed port are arranged at the upper part of the boiling dust removing hopper, the exhaust port is positioned above the filter screen, the feed port is positioned below the filter screen, and the feed port is arranged along the tangential direction of the upper part of the boiling dust removing hopper; the bottom of the boiling dust removal hopper is also provided with a conical section, the conical section is positioned above the opening, the conical section is provided with an air inlet, and a second static eliminator is arranged at the air inlet.

3. The boiling dust hopper of claim 1, wherein the discharge valve is a drawplate discharge valve or a rotary discharge valve.

4. The hopper of claim 1, wherein the hopper comprises a dust removing area, a separation area and an electrostatic neutralizing area from top to bottom, and the electrostatic neutralizing area is provided with a level gauge.

5. The boiling dust removal hopper according to any one of claims 1 to 4, wherein each of the first air vent and the second air vent has a channel and an upper flared portion at an upper end of the channel.

6. The boiling dust removal hopper according to claim 5, wherein the upper flaring portion is frustoconical.

7. The boiling dust removal hopper according to claim 5, wherein the lower end of the first air hole passage has a lower enlarged neck portion, and the maximum inner diameter of the upper enlarged neck portion at the upper end of the first air hole passage is smaller than the maximum inner diameter of the lower enlarged neck portion at the lower end of the passage.

8. The boiling dust removal hopper according to any one of claims 1 to 4, wherein the plurality of second air holes are uniformly arranged around the first air holes.

9. The boiling dust removal hopper according to any one of claims 1 to 4, wherein the air tap body is provided with at least three second air holes.

10. The boiling dust removing hopper as claimed in any one of claims 1 to 4, wherein the nozzle body comprises an upper nozzle body and a lower nozzle body, mounting holes are formed on two sides of the upper nozzle body, the upper surface of the upper nozzle body is a convex arc surface, and the maximum diameter of the upper nozzle body is smaller than that of the lower nozzle body.