CN203303919U - Volume type automatic feeder - Google Patents
Volume type automatic feeder Download PDFInfo
- Publication number
- CN203303919U CN203303919U CN2013202855452U CN201320285545U CN203303919U CN 203303919 U CN203303919 U CN 203303919U CN 2013202855452 U CN2013202855452 U CN 2013202855452U CN 201320285545 U CN201320285545 U CN 201320285545U CN 203303919 U CN203303919 U CN 203303919U
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- automatic feeder
- storage tank
- catalyst storage
- tank
- volume
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Abstract
The utility model relates to catalysis charging technology of petroleum technology, and relates to a volume type automatic feeder. The volume type automatic feeder is characterized in that a catalyst storage tank is arranged above a volume tank vertically; a feeding port in the top of the volume tank is communicated with a discharge port of the catalyst storage tank through a feeding pipeline; a discharge port in the bottom of the volume tank is communicated with a feeding pipeline of a subsequent equipment regenerator through a discharge pipeline; the volume tank and the catalyst storage tank are communicated through a pressure balance line; the feeding pipeline and the discharge pipeline are provided with overturning electromagnetic valves, and the two overturning electromagnetic valves are communicated with a controller; an air supply device is respectively communicated with the catalyst storage tank, the discharge pipeline and subsequent equipment through pressurizing lines. The volume type automatic feeder is used for fluidization, catalysis and cracking devices of petroleum, catalysts can be automatically added for multiple times according to the requirement of construction, and the volume type automatic feeder is simple in structure and long in service life.
Description
Technical field
The utility model relates to petroleum technology catalysis charging technology, is the positive displacement automatic feeder.
Background technology
Oil is one of contemporary main energy, by people, is referred to as " blood of industry ", and vapour, coal, diesel oil light Fuel from oil, obtaining with simple distillating method, all can not meet people's needs aspect quality and quantity two.Therefore, the mink cell focus in oil, partly by the effect of catalyst, is produced to light-end products through a series of catalytic reactions under certain temperature conditions, catalytic cracking is a main oil refining process of light materialization of heavy oil.The development of catalyst cracker is passed through fixed bed, moving bed, thermopnore, is arrived fluid bed, and modern catalytic cracking unit all adopts fluid bed.The fluidized catalytic cracker catalyst by early stage unbodied bead sial wear into irregular segmentation catalyst, microspherodiale silica-alumina catalyst, to molecular sieve catalyst, modern catalyst is all molecular sieve catalysts, develops multiple catalysts and auxiliary agent according to the production requirement of different process units.The molecular sieve catalyst granularity is little, and even particle size distribution, has the advantages such as activity is high, selective well, the preventing from heavy metal pollution ability is strong, scuff resistance is high, density is little and makes catalytic cracking unit maximization, hugeization.
At high temperature heat collapses, weares and teares, runs damage to catalyst, the continuous fresh makeup catalyst of needs keeps two utensils that stable reserve and reaction velocity be arranged aborning, comes assurance device normally to produce.Effect of the effect of steam (hydrothermal stability of catalyst), catalyst heavy metal poisoning, alkali metallic sodium dissolubility etc., catalyst is progressively lost activity, the catalyst that needs like this fresh catalyst to replace to supplement in two devices maintains enough catalyst activities, keeps good selectively.Steadily make-up catalyst is the key that maintains two device reserves and catalyst activity equably, and automatic catalyst feeder is exactly the equipment of filling catalyst, and its working condition is just determining to add the steady and uniformity of catalytic amount.
It is regularly reinforced in a feeding study on period of setting that the automatic catalyst feeder of Gaoqiao Petrochemical Company oil plant is actually, flexibly changing feed time and the reinforced frequency, and it comprises a set of timing controller, a set of special control valve and a set of special air feed system.Its feature maintenance cost is low, controls simply, adds the dosage flexible adjustment.But the discharging pipeline easily stops up and the impact of blast makes that to add catalytic amount unstable at every turn, can not stablize on request filling, does not reach even filling.
The small-sized automatic catalyst feeder of pneumatic Weighting type mainly contains catalyst fluidization, induction system, the Four processes such as that pneumatic weighing automatic feeder divides is reinforced, fluidisation, discharging, emptying.Its feature is that the catalyst addition is accurate, and the frequency that adds catalyst can be regulated as required.Three cover catalytic cracking units at the Yan'an oil plant make to see, carry blast to require high, requiring to import and export the pneumatic diaphragm valve closes tightly, and easily wearing and tearing, maintenance cost is high, when the catalyst filling frequency is high, import and export the pneumatic diaphragm valve, the wearing and tearing especially severe, life cycle was less than one month.
The utility model content
The purpose of this utility model is to provide a kind of positive displacement automatic feeder, for fluidisation, catalysis, the cracking unit of oil, can be according to the interpolation catalyst of the automatic gradation of needs of construction, and simple in structure, long service life.
The technical solution of the utility model is the positive displacement automatic feeder, which comprises at least volume tank, feeding line, discharging pipeline, pressure balance line and controller, it is characterized in that: catalyst storage tank is arranged on the vertical top of volume tank, the charging port of volume tank top is by the discharging port conducting of feeding line and catalyst storage tank, the discharging port of volume pot bottom is by the charge line conducting of discharging pipeline and follow-up equipment regenerator, between volume tank and catalyst storage tank by the conducting of pressure balance line; On feeding line and discharging pipeline, all be provided with the upset magnetic valve, two upset magnetic valves are communicated with controller; Air supply device by the pressurising line respectively with catalyst storage tank, discharging pipeline and follow-up equipment add all conductings of stockline.
Described volume tank inside is provided with screen pack.
The design latus rectum of described feeding line is Dg80 to 100mm, and the design latus rectum of discharging pipeline is Dg25 to 40mm, and the design latus rectum of pressure balance line is Dg20 to 25mm.
The internal pressure of described catalyst storage tank is 0.6MPa, and the internal pressure of volume tank is also 0.6MPa, and the internal pressure of catalyst storage tank is maintained by the pressurising line by air supply device; More than the pressure that the internal pressure of catalyst storage tank and air supply device provide all is greater than the operating pressure 0.2MPa of follow-up equipment regenerator.
The vertical distance of described catalyst storage tank and volume tank is not more than 30m.
The outlet of described feeding line pipeline in the volume tank can not be higher than pressure balance line mouth.
Described air supply device adopts the public non-purification wind of process units, and it carries air quantity to be more than or equal to 0.18 m
3/ s.
Described controller is a kind of timing controller, can be the PLC logic controller, and internal preset has program.
On described discharging pipeline, be provided with photoreceptor, optical flame detector and controller conducting.
Characteristics of the present utility model are to control by controller independence and the timing that two upset magnetic valves are realized fill process and discharging process; Catalyst is realized reinforced and discharging by deadweight, is conducive to extend the service life of pipeline; Optical flame detector detects the discharging process, and catalyst feeds in raw material and has more automation.
The accompanying drawing explanation
Below in conjunction with embodiment, the utility model is further described:
Fig. 1 is the structural representation of positive displacement automatic feeder.
In figure: 1, volume tank; 2, feeding line; 3, discharging pipeline; 4, pressure balance line; 5, controller; 6, catalyst storage tank; 7, upset magnetic valve; 8, air supply device; 9, screen pack; 10, optical flame detector.
The specific embodiment
As shown in Figure 1, a kind of positive displacement automatic feeder is by catalyst storage tank 6 and 1 conducting of volume tank, then realizes with the charge line conducting of follow-up equipment regenerator.
Catalyst storage tank 6 is arranged on the vertical top of volume tank 1, and the vertical distance between the two is no more than 30m, and the feed end of the discharge end of catalyst storage tank 6 and volume tank 1 top is by feeding line 2 conductings.
The charge line of the discharge end of volume tank 1 bottom and follow-up equipment (being regenerator) is by 3 conductings of discharging pipeline.
Between volume tank 1 and catalyst storage tank 6 by 4 conductings of pressure balance line, pressure balance line 4 at the port of volume tank 1 in the position near volume tank 1 top.
The design latus rectum of feeding line 2 is Dg80 to 100mm, the design latus rectum of discharging pipeline 3 is Dg25 to 40mm, and the design latus rectum of pressure balance line is Dg20 to 25mm, wherein, the discharging opening of feeding line 2 in volume tank 1 should be higher than pressure balance line mouth, otherwise can affect the charging of catalyst.
On feeding line 2 and discharging pipeline 3, arrange respectively 7, two upset magnetic valves 7 of a upset magnetic valve all with controller 5 conductings, controller 5 is regularly PLC controllers.
On discharging pipeline 3, also be provided with an optical flame detector 10, during discharging pipeline 3 interior catalyst-free, light can pass through, and after optical flame detector 10 receives optical signal, sends instruction, and controller 5 receives instruction, sends and stops the discharging signal.
Air supply device 8 adds the stockline conducting by pressurising line and catalyst storage tank 6, discharging pipeline 3 and follow-up equipment, and the conveying air quantity of air supply device 8 is more than or equal to 0.18m
3/ s, it is 0.6MPa that air supply device 8 keeps the pressure of catalyst storage tank 6 inside, air supply device 8 is directly used the public non-purification wind of process units, belongs to known technology, is not described in detail.
During work, the method for work of this positive displacement automatic feeder is carried out in accordance with the following steps:
Step 1, catalyst storage tank 6 is inner by air supply device 8 pressurisings, makes its internal pressure reach 0.6MPa;
Step 2, under the control of controller 5, the upset magnetic valve 7 of discharging pipeline 3 cuts out, the upset magnetic valve 7 of feeding line 2 is opened, due to volume tank 1 with catalyst storage tank 6 by 4 conductings of pressure balance line, volume tank 1 is all 0.6MPa with the internal pressure of catalyst storage tank 6, and catalyst enters volume tank 1 under Action of Gravity Field;
Step 3, under the control of controller 5, the upset magnetic valve 7 of material pipeline 2 cuts out, the upset magnetic valve 7 of discharging pipeline 3 is opened, due to more than the internal pressure of volume tank 1 is greater than the operating pressure 0.2MPa of follow-up equipment regenerator, catalyst, through screen pack 9, enters the charge line of follow-up equipment regenerator;
Step 4, the needs according to construction, repeat the reinforced process of step 2 and the discharging process of step 3, until it is complete to construct under the control of controller 5.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (9)
1. positive displacement automatic feeder, which comprises at least volume tank (1), feeding line (2), discharging pipeline (3), pressure balance line (4) and controller (5), it is characterized in that: catalyst storage tank (6) is arranged on the vertical top of (1), the charging port at volume tank (1) top is by the discharging port conducting of feeding line (2) with catalyst storage tank (6), the discharging port of volume tank (1) bottom is by the charge line conducting of discharging pipeline (3) with the follow-up equipment regenerator, between volume tank (1) and catalyst storage tank (6) by pressure balance line (4) conducting, on feeding line (2) and discharging pipeline (3), all be provided with upset magnetic valve (7), two upset magnetic valves (7) are communicated with controller (5), air supply device (8) by the pressurising line respectively with catalyst storage tank (6), discharging pipeline (3) and follow-up equipment regenerator add all conductings of stockline.
2. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: described volume tank (1) inside is provided with screen pack (9).
3. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: the design latus rectum of described feeding line (2) is Dg80 to 100mm, the design latus rectum of discharging pipeline (3) is Dg25 to 40mm, and the design latus rectum of pressure balance line (4) is Dg20 to 25mm.
4. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: the internal pressure of described catalyst storage tank (6) is 0.6MPa, the internal pressure of volume tank (1) is also 0.6MPa, and the internal pressure of catalyst storage tank (6) is maintained by the pressurising line by air supply device (8); More than the pressure that the internal pressure of catalyst storage tank (6) and air supply device provide all is greater than the operating pressure 0.2MPa of follow-up equipment regenerator.
5. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: described catalyst storage tank (6) is not more than 30m with the vertical distance of volume tank (1).
6. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: the outlet of described feeding line pipeline (2) in volume tank (1) can not be higher than pressure balance line mouth.
7. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: described air supply device (8) adopts the public non-purification wind of process units, and its air output is more than or equal to 0.18 m
3/ s.
8. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: described controller (5) is a kind of timing controller, can be the PLC logic controller, and internal preset has program.
9. according to the positive displacement automatic feeder described in claim 1, it is characterized in that: on described discharging pipeline (3), be provided with photoreceptor (10), optical flame detector (10) and controller (5) conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202855452U CN203303919U (en) | 2013-05-23 | 2013-05-23 | Volume type automatic feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202855452U CN203303919U (en) | 2013-05-23 | 2013-05-23 | Volume type automatic feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203303919U true CN203303919U (en) | 2013-11-27 |
Family
ID=49610155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202855452U Expired - Fee Related CN203303919U (en) | 2013-05-23 | 2013-05-23 | Volume type automatic feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203303919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473565A (en) * | 2019-09-11 | 2021-03-12 | 上海立得催化剂有限公司 | Rotary feeder and feeding system for polyolefin solid catalyst |
| CN112473564A (en) * | 2019-09-11 | 2021-03-12 | 上海立得催化剂有限公司 | Two-way rotary feeder and feeding system for polyolefin solid catalyst |
-
2013
- 2013-05-23 CN CN2013202855452U patent/CN203303919U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112473565A (en) * | 2019-09-11 | 2021-03-12 | 上海立得催化剂有限公司 | Rotary feeder and feeding system for polyolefin solid catalyst |
| CN112473564A (en) * | 2019-09-11 | 2021-03-12 | 上海立得催化剂有限公司 | Two-way rotary feeder and feeding system for polyolefin solid catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20160523 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |