CN2239956Y - Conveying appliance for granular material - Google Patents
Conveying appliance for granular material Download PDFInfo
- Publication number
- CN2239956Y CN2239956Y CN 95222673 CN95222673U CN2239956Y CN 2239956 Y CN2239956 Y CN 2239956Y CN 95222673 CN95222673 CN 95222673 CN 95222673 U CN95222673 U CN 95222673U CN 2239956 Y CN2239956 Y CN 2239956Y
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- pipe
- sends
- auxilliary
- jar
- sent
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Abstract
The utility model relates to a dense phase pneumatic conveying appliance for granular materials, which is composed of an auxiliary conveying can, a main conveying can, a pneumatic appliance, a linked switch valve, a conveying pipeline, etc. The utility model has the function of automatic pipeline blocking eliminating, and has the advantage of long term and stable operation. The utility model is especially suitable for continuously conveying granular materials in a long distance.
Description
The utility model relates to the feedway of granular material, particularly a kind of granular material dense-phase pneumatic conveying device.
The conveying technology of granular material has a wide range of applications in fields such as chemical industry, cement, mineral products, grain, food.Mode of movement commonly used at present has mechanical handing, chain bucket, belt conveyor and strength to carry.What strength was carried China's employing is dilute-phase pneumatic conveying device.This device principle of work as shown in Figure 1, material enters in the gas delivery groove 18 from storage tank 16, in delivery chute, establish an air current spray nozzle 19 and Material pipeline 17, provide high gas speed air-flow from air current spray nozzle, air-flow is when delivery pipe penetrates, suck material from material sucking hole 20 simultaneously, make material enter delivery pipe, thereby material is transferred out along pipeline with high velocity air.The dilute phase strength is carried and compared following advantage with other mode of movement: (1) is sent material need not pack.(2) diffuser is not limited by space condition, can by arbitrarily angled, carry to any direction.(3) can keep away from moisture, stained or sneak into foreign matter, realize that isolation type transmits.(4) can realize remote the conveying and automation control operation.But this dilute phase strength is carried and is remained in following shortcoming and problem: (1) since the operating gas velocity height (up to 25～35m/s), make the strong friction of generation between particle and tube wall, particle and particle, and produce a certain amount of micro mist, become the root of some powder dust blasts.(2) high-speed friction of material can make system produce serious accumulation of static electricity and electrostatic discharge, is to cause the transfer cord that explodes.(3) solid-gas ratio of Shu Songing lower (general about 3～7) is wasted a large amount of sources of the gas, and it is higher to cause conveying capacity to consume.(4), equipment outlet gas solid separation and granule capturing difficulty are increased because the speed of Dual-Phrase Distribution of Gas olid is higher.
The purpose of this utility model realizes the Dense Phase Pneumatic Conveying of particle for a kind of later-model granular material dense-phase pneumatic conveying device is provided.
The designed device of the utility model comprise main send jar, be positioned at main send jar two parallel connections of top auxilliary send jar, with the main air knife apparatus that air-flow is provided to diffuser with sending diffuser that jar lower part outlet links to each other, pulsation.
Particularly this device can further comprise the feed pipe that links to each other with auxilliary transmission tank top, sends the discharge nozzle that the tank top links to each other with the auxilliary pot bottom that sends with the master, and described feed pipe and discharge nozzle are provided with control cock.Also be provided with in addition with auxilliary and send air feed pipe that the tank top links to each other and reach wherein gas switch valve.
A kind of particularly advantageous design plan of described air knife apparatus is to comprise being with the material of reducing to send into pipe, surround the outer cylinder body that described material is sent into pipe and extended beyond its reducing, the material that is positioned at that is wrapped in the described outer cylinder body is sent into the material of pipe below and is sent pipe, be positioned at the butt flange at described outer cylinder body two ends, with the perforate bonded assembly gas supply line on the described outer cylinder body sidewall, gas switch valve in this pipeline, described perforate are positioned at described material and send near the reducing of pipe.
To look main jar interior material level that sends in order surveying, a tuning fork respectively to be housed at the place, upper and lower of its sidewall.
This device also can be provided with the coordinated control mechanism that each valve of control opens and closes.
The operating mode of this device is: material is sent into an auxilliary jar that sends, under the gas effect, enter main jar and the diffuser of sending then successively, gas enters diffuser through the air knife apparatus pulse, in diffuser, form aeroembolism one material bolt one aeroembolism ..., material is delivered to the place that needs with the form of material bolt pulse.When the material in the described auxilliary transmission pipe has sent, another auxilliary material that sends jar is sent into main the transmission jar and diffuser, go into material to last auxilliary transmission is canned simultaneously, realize the continuous close transmission mutually of material like this.
In a preferred embodiment, the material that independently sends jar enters the material of air knife apparatus and sends into pipe, gas enters from the perforate on the outer cylinder body through switch valve and pipeline and sends into pipe, material by material and send the slit that pipe and outer cylinder body constitute, enter material intermittently and send pipe, material is delivered to the place that needs with material bolt form through diffuser.
The utlity model has following obvious advantage:
Because Dense Phase Pneumatic Conveying is the pneumatic conveying mode of a kind of low gas velocity, high concentration, its air consumption obviously reduces, and the solid-gas ratio of conveying brings up to 20～30; Less air consumption has also been simplified the gas solid separation and the dust catching system of delivery duct end simultaneously, has reduced equipment investment.The low speed of material sends, and has reduced wearing and tearing between the abrasion of tube wall and particle, fragmentation, and the influence of static also greatly reduces, and this is very favourable for conveying inflammable, explosive, frangible material.Owing to be provided with air knife apparatus, the function of automatic removing clogged hose or line is arranged, can steady in a long-term operate, be specially adapted to the remote conveying of granulated material.
Further specify the utility model below by drawings and Examples.
Fig. 1 is the scheme drawing of existing dilute-phase pneumatic conveying device;
Fig. 2 is the scheme drawing of a preferred version of the utility model granular material dense-phase pneumatic conveying device;
Fig. 3 is the structural representation of a preferred version of the used air knife apparatus of the utility model.
Number in the figure 1 and 5 is the gas switch valve, and 2 and 4 are the charging control cock, and 3 and 6 are the discharging control cock, and 7 and 8 is the auxilliary jar that sends, 9 is the main jar that sends, and 10 is diffuser, and 11 and 14 is the tuning fork cap, and 12 and 13 is tuning fork, 15 is air knife apparatus, and 16 is the material storage tank, and 17 is Material pipeline, 18 is the air-flow chute feeder, and 19 is air current spray nozzle, and 20 is the material sucking hole, 21 send into pipe for material, and 22 is outer cylinder body, and 23 is the gas switch valve, 24 is butt flange, and 25 send pipe for material, and 26 is the gas entry.
Press the device shown in the following step application drawing 2,3:
1. material is sent into the auxilliary jar 7 that sends earlier, shutoff valve 6, valve 2, open valve 3 and high pressure air valve 1, material enters main jar 9 and the diffuser 10 of sending successively under the gas effect, high pressure air intermittently enters gas entry 26 through switch valve 23, enter material then and send pipe 25 and diffuser 10, material in diffuser with piston-shaped (i.e. one section material, one section air) pushes ahead successively, be transported to the place that needs.After material in assisting transmission jar 7 had sent, shutoff valve 3 and valve 1 were opened valve 2, and it is stand-by that material enters auxilliary transmission jar 7; Open valve 6 and valve 5 simultaneously, shutoff valve 4 is sent assisting the material that sends jar 8 into main jar 9 and the diffuser 10 of sending under the high pressure gas effect.After a material had sent in auxilliary send jar, shutoff valve 6 and valve 5 were opened valve 4, send jars 8 to send into material stand-by to auxilliary, and open and close has closing valve simultaneously, sent the auxilliary material that sends in jars 7, and the like, realize the continuous close transmission mutually of material.
The keying of described each valve realizes by the interlock of control mechanism (not shown).
As seen from Figure 3, send into pipe 21 reducing and material by material and send the convergent inlet of pipe 25 and constitute the tapered annular slit, as the gas entry 26 of air knife apparatus, the angle theta of outline and axis of symmetry
3Be 35～55 °, slit subtended angle θ
1Be 3～5 °, the width b of minimum place, slit is 0.6～1 millimeter.
This device carries solid-gas ratio can reach 20～30.
Claims (8)
1. granular material dense-phase pneumatic conveying device, it is characterized in that comprising main send jar, be positioned at main send jar two parallel connections of top auxilliary send jar, with the main air knife apparatus that air-flow is provided to diffuser with sending diffuser that jar lower part outlet links to each other, pulsation.
2. device as claimed in claim 1 is characterized in that comprising the feed pipe that links to each other with auxilliary transmission tank top, sends the discharge nozzle that the tank top links to each other with the auxilliary pot bottom that sends with the master.
3. device as claimed in claim 2 is characterized in that described feed pipe and discharge nozzle are provided with control cock.
4. device as claimed in claim 1 is characterized in that being provided with auxilliary and sends air feed pipe that the tank top links to each other and reach wherein gas switch valve.
5. device as claimed in claim 1, it is characterized in that described air knife apparatus comprises is with the material of reducing to send into pipe, surround the outer cylinder body that described material is sent into pipe and extended beyond its reducing, the material that is positioned at that is wrapped in the described outer cylinder body is sent into the material of pipe below and is sent pipe, be positioned at the butt flange at described outer cylinder body two ends, with the perforate bonded assembly gas supply line on the described outer cylinder body sidewall, the gas switch valve in this pipeline, described perforate is positioned at described material and sends near the reducing of pipe.
6. device as claimed in claim 5, it is characterized in that sending into the convergent mouth of pipe and convergent that material is sent pipe inlet constitutes the tapered annular slit by described material, the angle of its outline and axis of symmetry is 35～55 °, and the slit subtended angle is 3～5 °, and minimum place, slit width is 0.6～1 millimeter.
7. device as claimed in claim 1 is characterized in that at the main place, upper and lower that sends pot sidewall a tuning fork being housed respectively.
8,, it is characterized in that being provided with the coordinated control mechanism that each valve of control opens and closes as the device of one of claim 3 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222673 CN2239956Y (en) | 1995-10-09 | 1995-10-09 | Conveying appliance for granular material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222673 CN2239956Y (en) | 1995-10-09 | 1995-10-09 | Conveying appliance for granular material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2239956Y true CN2239956Y (en) | 1996-11-13 |
Family
ID=33869950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95222673 Expired - Fee Related CN2239956Y (en) | 1995-10-09 | 1995-10-09 | Conveying appliance for granular material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2239956Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022890B (en) * | 2004-06-18 | 2010-09-08 | 克莱德物料处理有限公司 | Pneumatic conveying device for bulk material |
| CN103508209A (en) * | 2013-07-24 | 2014-01-15 | 青海锂业有限公司 | Automatic sodium carbonate measuring and conveying device and method in lithium carbonate production |
| CN112173721A (en) * | 2018-07-02 | 2021-01-05 | 芜湖万向新元环保科技有限公司 | Operation method for pneumatic conveying and sending tank for powdery materials |
-
1995
- 1995-10-09 CN CN 95222673 patent/CN2239956Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022890B (en) * | 2004-06-18 | 2010-09-08 | 克莱德物料处理有限公司 | Pneumatic conveying device for bulk material |
| CN103508209A (en) * | 2013-07-24 | 2014-01-15 | 青海锂业有限公司 | Automatic sodium carbonate measuring and conveying device and method in lithium carbonate production |
| CN112173721A (en) * | 2018-07-02 | 2021-01-05 | 芜湖万向新元环保科技有限公司 | Operation method for pneumatic conveying and sending tank for powdery materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |