CN202609590U - Closed cavity type variable pressure dry powder pump device - Google Patents
Closed cavity type variable pressure dry powder pump device Download PDFInfo
- Publication number
- CN202609590U CN202609590U CN 201220255649 CN201220255649U CN202609590U CN 202609590 U CN202609590 U CN 202609590U CN 201220255649 CN201220255649 CN 201220255649 CN 201220255649 U CN201220255649 U CN 201220255649U CN 202609590 U CN202609590 U CN 202609590U
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- piston
- cylindrical shell
- dry powder
- pump device
- feed pipe
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Abstract
The utility model discloses a closed cavity type variable pressure dry powder pump device, which comprises a feed pipe, a piston rod and a cylinder body, wherein the cylinder body forms a certain included angle with the horizontal direction; the upper part of the cylinder body is connected with the lower end of the feed pipe by an inlet valve; the upper end of the feed pipe is connected with a discharge hole of a constant-pressure storage bin; a feed valve is arranged on the feed pipe; the lower end of the cylinder body is connected with a feeding hole of a high-pressure delivery bin by a powder outlet; an outlet valve is arranged at the powder outlet; the hollow piston rod is arranged in the cylinder body along the axis; a piston rear cover and a piston front cover which are adaptive with an inner hole of the cylinder body are arranged at the lower end of the piston rod; a cavity is formed between the piston rear cover and the piston front cover; a plurality of airtight hole permeable columns are arranged on the piston front cover; an inner cavity of the cylinder body is communicated with the cavity by the airtight hole permeable columns; and the cavity is communicated with an external high-pressure air source by the piston rod. According to the closed cavity type variable pressure dry powder pump device, a variable pressure in a bin pump delivery pump can be replaced, so that the reliability of the delivery system is improved.
Description
Technical field
The utility model relates to a kind of closed cavity type transformation dry powder pump device, is applicable to that the powder material in the industrial process such as extensive dry powder gasification, IGCC generating, chemical industry, metallurgy is carried.
Background technology
Extensive Coal Gasification Technology is the core technology that the coal clean and effective transforms; The focus of Coal Gasification Technology development at present is dry-powder air-current bed gasification, and the stability of dry powder charging system and controllability have crucial effects to whole gasifying process safe and stable operation.This delivery system has adopted powder lock bucket system, by the normal pressure filler bin, and the high-pressure delivery storehouse, and connect the high pressure of two feed bins, the transformation storehouse formation of low pressure alternation.In this system; Because the operation of transformation storehouse is the process of a pressure alternation, be easy to generate phenomenons such as knot arch, bridge formation, false material level in the transformation storehouse blanking process, cause the blanking process not smooth; Often need broken arch; Cause the internal pressure fluctuation of transformation storehouse, prolonged the blanking time, increased the work load of operating personal; And because transformation storehouse cycle blowing, cause high-pressure delivery bin-level periodically-varied, and then cause the fugitiveness of fluidized state, cause instability that powder carries and uncontrollable.
Summary of the invention
Goal of the invention: the utility model to transformation warehousing in the prior art defective or deficiency, a kind of closed cavity type transformation dry powder pump device that can substitute the transformation storehouse is provided.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of closed cavity type transformation dry powder pump device; Comprise feed pipe, piston rod and cylindrical shell; Said cylindrical shell and horizontal direction are certain included angle; The top of cylindrical shell is connected with the lower end of feed pipe through inlet valve, and the upper end of said feed pipe is connected with the discharging opening of normal pressure feed bin, and the charging valve is set on feed pipe; The lower end of cylindrical shell is provided with outlet valve through the inlet point in powder outlet connection high-pressure delivery storehouse in the powder exit; The piston rod of hollow is set along axis in cylindrical shell; Be provided with piston bonnet and the piston protecgulum suitable at piston-rod lower end with the cylindrical shell endoporus; Form a cavity between said piston bonnet and the piston protecgulum; Some ventilative close Kong Zhu are set on the piston protecgulum, and cylinder lumen is communicated with through ventilative close Kong Zhuyu cavity, and cavity is communicated with the external high pressure source of the gas through piston rod.
In the utility model, further, the inwall of said cylindrical shell is a smooth inner wall, and the inwall of piston bonnet, piston protecgulum and cylindrical shell closely cooperates; The angle of cylindrical shell and horizontal direction is 15～60 °.
In the utility model, further, said ventilative close Kong Zhuwei porous sintered metal materials.
Compared with prior art, the closed cavity type transformation dry powder pump of the utility model has following advantage:
(1) the transformation storehouse in the pump delivery system of alternative storehouse, effectively avoid because of build bridge in the feed bin, the job insecurity of whole powder delivery system that problem such as knot arch causes, the reliability of raising delivery system;
(2) pressure in the cylindrical shell is a little more than the pressure in high-pressure delivery storehouse, and the powder material in the cylindrical shell evenly disperses, and can not be compressed effect, under piston promotes, can get into the high-pressure delivery storehouse smoothly;
(3) powder material belongs to the conveying of part fluidisation in cylindrical shell, and the flowing power of material is strong, and the easy fluidisation of powder material behind the entering high-pressure delivery storehouse is not prone to faults such as taking arch, bridge formation;
(4) do not have the pressure release exhaust process, effectively reduce high-pressure air source consumption;
(5) realization is to the continuous charging in high-pressure delivery storehouse, and material level is constant basically in the maintenance high-pressure delivery storehouse, makes the fluidized state of powder stable, and defeated material process stabilization is continuous;
(6) simple and compact for structure, volume is little, and mounting arrangements is convenient.
Description of drawings
Fig. 1 is the delivery system scheme drawing that has closed cavity type transformation dry powder pump;
Fig. 2 is the structural representation of closed cavity type transformation dry powder pump device.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done explanation further.
Fig. 1 is for having closed cavity type transformation dry powder pump device delivery system schematic, and powder adds powder delivery system from normal pressure feed bin 11 tops, under normal pressure, gets into closed cavity type transformation dry powder pump device, is delivered to high-pressure delivery storehouse 13 through transformation.
As shown in Figure 2, a kind of closed cavity type transformation dry powder pump device of the utility model comprises feed pipe 1, piston rod 4 and cylindrical shell 8, and said cylindrical shell 8 is certain included angle with horizontal direction, and corner dimension is selected according to the slope angle of repose of carrying powder, generally at 15～60 °.The top of cylindrical shell 8 is connected with the lower end of feed pipe 1 through inlet valve 3, and the upper end of said feed pipe 1 is connected with the discharging opening of normal pressure feed bin 11, and charging valve 2 is set on feed pipe 1; The lower end of cylindrical shell 8 exports 10 places at powder outlet valve 9 is set through the inlet point in powder outlet 10 connection high-pressure delivery storehouses 13; The piston rod 4 of hollow is set along axis in cylindrical shell 8; Piston rod 4 is driving cylinder drive lower edge cylindrical shell 8 axial up-and-down movements; Be provided with the piston bonnet 5 and piston protecgulum 6 suitable with cylindrical shell 8 endoporus in piston rod 4 lower ends, the inwall of cylindrical shell 8 is a smooth inner wall, and piston bonnet 5, piston protecgulum 6 closely cooperate with the inwall of cylindrical shell 8; Good seal forms a cavity 12 between piston bonnet 5 and the piston protecgulum 6; The ventilative close hole post 7 that some employing porous sintered metal materials are processed is set on piston protecgulum 6; Cylindrical shell 8 inner chambers are communicated with cavity 12 through ventilative close hole post 7; Cavity 12 is communicated with the external high pressure source of the gas through piston rod 4, and the air pressure of external high pressure source of the gas is slightly larger than the air pressure in the high-pressure delivery storehouse 13.The driving cylinder and the high-pressure air source of the charging valve 2 of closed cavity type transformation dry powder pump device, inlet valve 3, outlet valve 9, piston rod 4 all adopt computer controlled.Inlet valve 3 and outlet valve 9 are by the periodic opening and closing of programming control.
The working process of closed cavity type transformation dry powder pump device: at first close outlet valve 9, open charging valve 2 and inlet valve 3, a certain amount of powder material gets into cylindrical shell 8 under the run by gravity effect, close inlet valve 3 then; Piston protecgulum 6 is moved to top dead point A by bottom dead point B; Piston protecgulum 6 after crossing inlet valve 3 positions is opened outlet valve 9; Simultaneously be communicated with piston rod 4 by the external high pressure source of the gas and charge into high pressure gas to cavity 12, the pressure of high pressure gas is a little more than the pressure in the high-pressure delivery storehouse; The powder material that high pressure gas pass in ventilative 7 pairs of cylindrical shells of close hole post 8 carries out pressurising, and piston protecgulum 6 promotes powder material and moves into high-pressure delivery storehouse 13 to powder outlet 10; Close the external high pressure source of the gas when piston protecgulum 6 moves to top dead point A and connect, close outlet valve 9; Piston protecgulum 6 is to bottom dead point B motion, and the cavity volume between piston protecgulum 6 and the outlet valve 9 increases, and gaseous tension reduces, and gaseous tension was reduced to normal pressure when piston protecgulum 6 moved to inlet valve 3; Piston protecgulum 6 is opened inlet valve 3 after getting back to bottom dead point B once more, and this moment, cylindrical shell 8 interior gaseous tensions were low, and powder material can fall into cylindrical shell 8 smoothly.Repeat above-mentioned cyclic process, just can realize continuous charging the high-pressure delivery storehouse.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. closed cavity type transformation dry powder pump device; It is characterized in that: comprise feed pipe (1), piston rod (4) and cylindrical shell (8); Said cylindrical shell (8) is certain included angle with horizontal direction; The top of cylindrical shell (8) is connected with the lower end of feed pipe (1) through inlet valve (3), and the upper end of said feed pipe (1) is connected with the discharging opening of normal pressure feed bin (11), and charging valve (2) is set on feed pipe (1); The lower end of cylindrical shell (8) locates to be provided with outlet valve (9) through the inlet point in powder outlet (10) connection high-pressure delivery storehouse (13) in powder outlet (10); The piston rod (4) of hollow is set along axis in cylindrical shell (8); Be provided with and suitable piston bonnet (5) and the piston protecgulum (6) of cylindrical shell (8) endoporus in piston rod (4) lower end, form a cavity (12) between said piston bonnet (5) and the piston protecgulum (6); Some ventilative close Kong Zhu (7) are set on piston protecgulum (6), and cylindrical shell (8) inner chamber is communicated with cavity (12) through ventilative close Kong Zhu (7), and cavity (12) is communicated with the external high pressure source of the gas through piston rod (4).
2. a kind of closed cavity type transformation dry powder pump device according to claim 1, it is characterized in that: the inwall of said cylindrical shell (8) is a smooth inner wall, piston bonnet (5), piston protecgulum (6) closely cooperate with the inwall of cylindrical shell (8).
3. a kind of closed cavity type transformation dry powder pump device according to claim 1 and 2 is characterized in that: cylindrical shell (8) is 15～60 ° with the angle of horizontal direction
4. a kind of closed cavity type transformation dry powder pump device according to claim 1 is characterized in that: said ventilative close Kong Zhu (7) processes for porous sintered metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255649 CN202609590U (en) | 2012-05-31 | 2012-05-31 | Closed cavity type variable pressure dry powder pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220255649 CN202609590U (en) | 2012-05-31 | 2012-05-31 | Closed cavity type variable pressure dry powder pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202609590U true CN202609590U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220255649 Withdrawn - After Issue CN202609590U (en) | 2012-05-31 | 2012-05-31 | Closed cavity type variable pressure dry powder pump device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202609590U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700941A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Closed cavity type pressure varying dry powder pump device |
| CN112450097A (en) * | 2020-12-04 | 2021-03-09 | 内蒙古农业大学 | Be used for murine nano-sterilant to put in induction system and feed supplement mechanism |
-
2012
- 2012-05-31 CN CN 201220255649 patent/CN202609590U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700941A (en) * | 2012-05-31 | 2012-10-03 | 东南大学 | Closed cavity type pressure varying dry powder pump device |
| CN112450097A (en) * | 2020-12-04 | 2021-03-09 | 内蒙古农业大学 | Be used for murine nano-sterilant to put in induction system and feed supplement mechanism |
| CN112450097B (en) * | 2020-12-04 | 2022-04-19 | 内蒙古农业大学 | Be used for murine nano-sterilant to put in induction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121219 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |