CN103566832A - Batch feeding pipeline with cleaning function and batch feeding method thereof - Google Patents

Batch feeding pipeline with cleaning function and batch feeding method thereof Download PDF

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Publication number
CN103566832A
CN103566832A CN201310530389.6A CN201310530389A CN103566832A CN 103566832 A CN103566832 A CN 103566832A CN 201310530389 A CN201310530389 A CN 201310530389A CN 103566832 A CN103566832 A CN 103566832A
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China
Prior art keywords
pipeline
batch feeding
feeds intake
intake
valves
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CN201310530389.6A
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Chinese (zh)
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CN103566832B (en
Inventor
陈守武
尹治国
洪毅
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LIHUAYI SHENJIAN CHEMICAL Co.,Ltd.
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Anhui Shenjian New Materials Co Ltd
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Abstract

The invention discloses a batch feeding pipeline with cleaning function and a batch feeding method thereof. The batch feeding pipeline comprises a batch feeding pipeline arranged above a reactor, wherein the batch feeding pipeline is provided with two valves at intervals; the batch feeding pipeline between the two valves is connected with an air inlet pipeline; the air inlet pipeline is provided with an adjusting valve. The batch feeding method comprises the following steps: during batch feeding, connecting the air inlet pipeline with a nitrogen tank, switching on the valve positioned on the lower part of the batch feeding pipeline and the adjusting valve on the air inlet pipeline; then, switching on the valve positioned on the upper part of the batch feeding pipeline for batch feeding; after batch feeding, operating the adjusting valve to increase the nitrogen air inlet flow rate of the air inlet pipeline, purging the pipeline, and then switching off the two valves on the batch feeding pipeline. During the batch feeding process of powder, the pipeline is automatically cleaned, solid powder is prevented from being attached on the wall of the pipeline and a ball valve, the sealing face of the ball valve is well protected, and the problem that the pipeline is easily blocked is solved.

Description

A kind of feed intake pipeline and feeding method thereof with cleaning function
Technical field
The present invention relates to solid powder commissioning pipe line technology field, especially relate to a kind of feed intake pipeline and feeding method thereof with cleaning function.
Background technology
As shown in Figure 2, existing when throwing solid powder in reactor 1, be all to adopt pipeline to carry powder, solid powder feeds intake through the pipeline 2 that feeds intake, and powder is easily attached on duct wall and ball valve, causes ball valve sealing face to damage and situation that the pipeline that feeds intake stops up.
Particularly the steam in reactor enters into the pipeline that feeds intake, and above-mentioned situation is more severe, and maintenance is inconvenience very, and maintenance cost is high; Meanwhile, on production efficiency impact greatly, perplexing technical staff always.
Summary of the invention
Not enough for prior art, technical problem to be solved by this invention is to provide a kind of feed intake pipeline and feeding method thereof with cleaning function, and it can prevent that solid powder is attached on duct wall and ball valve.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of pipeline that feeds intake with cleaning function, comprise the pipeline that feeds intake that is located at reactor top, on the described pipeline that feeds intake, be interval with two valves, the pipeline that feeds intake between described two valves is connected with admission line, and admission line is provided with control valve.
Further, the pipeline that feeds intake between described two valves is provided with pressure sensor.
Described control valve is electric control valve.
A feeding method with the pipeline that feeds intake of cleaning function described above, this feeding method comprises the following steps:
1) while feeding intake, admission line is connected with nitrogen pot, opens on the pipeline that feeds intake the valve in below and the control valve on admission line;
2) then, opening the valve in top on the pipeline that feeds intake feeds intake;
3) feed intake completely, operation control valve increases the nitrogen charge flow rate of admission line, and pipeline is purged, and then closes two valves that feed intake on pipeline.
Before described step 1, close two valves that feed intake on pipeline, admission line is connected and opens control valve with nitrogen pot, keeps force value in the pipeline that feeds intake between two valves.
The present invention compared with prior art, has the following advantages:
1, the dry zoning in pipeline that feeds intake, effectively intercepts steam in reactor and enters powder;
2, automated cleaning pipeline in the process that powder feeds intake, prevents that solid powder is attached on duct wall and ball valve, better protects ball valve sealing face, solves the easy blockage problem of pipeline;
3, input cost is low, easy and simple to handle.
Accompanying drawing explanation
Below the expressed content of each width accompanying drawing of this description and the mark in figure are briefly described:
Fig. 1 is commissioning pipe line structure schematic diagram of the present invention.
Fig. 2 is existing commissioning pipe line structure schematic diagram.
In figure: 1. reactor, 2. feed intake pipeline, 3. ball valve II, 4. ball valve I, 5. pressure sensor, 6. admission line, 7. electric control valve.
The specific embodiment
Contrast accompanying drawing below, the description by embodiment, is described in further detail the specific embodiment of the present invention.
As shown in Figure 1, this has the pipeline that feeds intake of cleaning function, and this pipeline 2 that feeds intake is arranged on the top of reactor 1, and by feeding intake, pipeline 2 is delivered solid powder to reactor 1.
On the pipeline 2 that feeds intake, interval is setting up and down two valves, two valves are ball valve, valve is up ball valve I 4, below valve be ball valve II 3, the pipeline 2 that feeds intake between ball valve I 4 and ball valve II 3 is connected with admission line 6 one end, admission line 6 other ends are connected with nitrogen pot, are provided with electric control valve 7 on admission line 6.
On the pipeline 2 that feeds intake between ball valve I 4 and ball valve II 3, be provided with pressure sensor 5, pressure sensor is connected with controller respectively with electric control valve.Can control nitrogen and be input to feeding intake in pipeline 2 between ball valve I and ball valve II, according to setup pressure value, automatically regulate electric control valve to keep pressure.
The pressure that is kept above reactor 1 in the pipeline 2 that feeds intake between two valves, the steam in reactor can not enter into the pipeline that feeds intake, and the pipeline that makes to feed intake keeps dry state constantly, forms dry zoning.While feeding intake, commissioning pipe linear pressure can order about nitrogen in pipeline and enter fast reactor, reaches cleanser conduit object.In feeding intake, nitrogen keeps certain flow, enters reactor together with solid powder, has effectively intercepted steam and has entered in the powder feeding intake in pipeline.
Utilize the feeding method with the pipeline that feeds intake of cleaning function described above, comprise the following steps:
Ball valve I and ball valve II are in closed condition, utilize pressure sensor and motorized adjustment valve regulation nitrogen to enter into the pipeline that feeds intake, the force value in pipeline that keeps feeding intake, stops the steam in reactor to enter into the pipeline that feeds intake, and keeping ball valve II top and the pipeline middle and upper part that feeds intake is drying regime;
While feeding intake, first open ball valve II, and keep nitrogen to have certain flow, the nitrogen in the pipeline that feeds intake has the process of a purging to pipeline and ball valve II, reach cleanser conduit object;
Then, open ball valve I and feed intake, by the flow value of motorized adjustment valve regulation nitrogen, keep certain nitrogen to be blended in powder and enter reactor, the steam effectively intercepting in reactor enters in the powder feeding intake in pipeline;
Feed intake complete, operation electric control valve increases the nitrogen charge flow rate of admission line, and the pipeline of the pipeline that feeds intake is purged, and then closes two ball valves that feed intake on pipeline.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present invention and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.

Claims (5)

1. the pipeline that feeds intake with cleaning function, comprise the pipeline that feeds intake (2) that is located at reactor (1) top, it is characterized in that: described in feed intake on pipeline (2) and be interval with two valves, the pipeline that feeds intake (2) between described two valves is connected with admission line (6), and admission line (6) is provided with control valve.
2. the pipeline that feeds intake as claimed in claim 1 with cleaning function, is characterized in that: the pipeline that feeds intake (2) between described two valves is provided with pressure sensor (5).
3. the pipeline that feeds intake as claimed in claim 1 with cleaning function, is characterized in that: described control valve is electric control valve (7).
4. utilize a feeding method described in claim 1 to 3 any one with the pipeline that feeds intake of cleaning function, it is characterized in that: described feeding method comprises the following steps:
1) while feeding intake, admission line is connected with nitrogen pot, opens on the pipeline that feeds intake the valve in below and the control valve on admission line;
2) then, opening the valve in top on the pipeline that feeds intake feeds intake;
3) feed intake completely, operation control valve increases the nitrogen charge flow rate of admission line, and pipeline is purged, and then closes two valves that feed intake on pipeline.
5. feeding method as claimed in claim 4, is characterized in that: before described step 1, close two valves that feed intake on pipeline, admission line is connected and opens control valve with nitrogen pot, keeps force value in the pipeline that feeds intake between two valves.
CN201310530389.6A 2013-10-30 2013-10-30 A kind of feed intake pipeline and feeding method thereof with cleaning function Active CN103566832B (en)

Priority Applications (1)

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CN201310530389.6A CN103566832B (en) 2013-10-30 2013-10-30 A kind of feed intake pipeline and feeding method thereof with cleaning function

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Application Number Priority Date Filing Date Title
CN201310530389.6A CN103566832B (en) 2013-10-30 2013-10-30 A kind of feed intake pipeline and feeding method thereof with cleaning function

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CN103566832A true CN103566832A (en) 2014-02-12
CN103566832B CN103566832B (en) 2015-11-18

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018671A (en) * 1975-01-14 1977-04-19 Marathon Oil Company Intermittent catalyst addition system
CN101811011A (en) * 2010-04-13 2010-08-25 中国石油化工集团公司 Automatic catalyst-feeding method
CN102049217A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 On-line filling device and method for catalyst
CN102993342A (en) * 2011-09-19 2013-03-27 中国石油化工股份有限公司 Feeding system for powdery polyolefin catalyst
CN203635167U (en) * 2013-10-30 2014-06-11 安徽神剑新材料股份有限公司 Batch feeding pipeline with cleaning function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018671A (en) * 1975-01-14 1977-04-19 Marathon Oil Company Intermittent catalyst addition system
CN102049217A (en) * 2009-10-27 2011-05-11 中国石油化工股份有限公司 On-line filling device and method for catalyst
CN101811011A (en) * 2010-04-13 2010-08-25 中国石油化工集团公司 Automatic catalyst-feeding method
CN102993342A (en) * 2011-09-19 2013-03-27 中国石油化工股份有限公司 Feeding system for powdery polyolefin catalyst
CN203635167U (en) * 2013-10-30 2014-06-11 安徽神剑新材料股份有限公司 Batch feeding pipeline with cleaning function

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Effective date of registration: 20210715

Address after: 257000 No. 55, Yongxin Road, Lijin County, Dongying City, Shandong Province

Patentee after: LIHUAYI SHENJIAN CHEMICAL Co.,Ltd.

Address before: 241008, No. 8, Shun Bao Road, North Industrial Park, Wuhu economic and Technological Development Zone, Anhui, China

Patentee before: ANHUI SHENJIAN NEW MATERIALS Co.,Ltd.