CN218454164U - Coal slurry pump feeding system of intercommunication - Google Patents
Coal slurry pump feeding system of intercommunication Download PDFInfo
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- CN218454164U CN218454164U CN202222453654.2U CN202222453654U CN218454164U CN 218454164 U CN218454164 U CN 218454164U CN 202222453654 U CN202222453654 U CN 202222453654U CN 218454164 U CN218454164 U CN 218454164U
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Abstract
The utility model discloses a coal slurry pump feeding system of intercommunication, this coal slurry pump feeding system includes 1# coal slurry groove, 2# coal slurry groove and 3# coal slurry groove bottom all with take the first conveyer pipe of first valve, take the second conveyer pipe and the plunger valve intercommunication of second valve, each first conveyer pipe is connected with first pressurization coal slurry pump, each second conveyer pipe is connected with second pressurization coal slurry pump, be located on the first conveyer pipe between each first valve and each first pressurization coal slurry pump and be located on the second conveyer pipe between each second valve and each second pressurization coal slurry pump all be equipped with the three-way pipe, be equipped with the third valve on each three-way pipe; the two feeding pipelines are arranged, one ends of the two feeding pipelines are respectively communicated with the plunger valves connected to the bottoms of the coal slurry tanks which do not have faults, and the other ends of the two feeding pipelines are respectively communicated with the two third valves arranged at the bottoms of the coal slurry tanks which have faults. The utility model discloses the incident of having avoided having must parkked because of the coal slurry tank trouble takes place.
Description
Technical Field
The utility model relates to a coal chemical industry equipment technical field, concretely relates to coal stuff pump feeding system of intercommunication.
Background
The gasification device has the main task of pressurizing and pumping coal slurry produced at a pulping post into the gasification furnace through a high-pressure coal slurry pump, carrying out partial oxidation reaction with oxygen produced by air in the gasification furnace to produce process gas taking carbon monoxide and hydrogen as main components, and sending the process gas to a purification working section after washing; and simultaneously, black water discharged by the system is recycled and utilized, and coarse slag and fine slag are separated from the system, so that raw materials must be fed into the gasification furnace by using a high-pressure coal slurry pump coal slurry feeding system in order to ensure the normal operation of the gasification furnace.
As shown in fig. 1, a high-pressure slurry pump slurry feeding system of a gasification furnace provided in the prior art is designed such that one slurry tank supplies two high-pressure slurry pumps, three slurry tanks supply six high-pressure slurry pumps, three slurry tanks can be communicated with each other, and the six slurry pumps do not have communication conditions, the slurry tank No. 1 can only supply the slurry pumps No. 1 and No. 2, the slurry tank No. 2 can only supply the slurry pumps No. 3 and No. 4, the slurry tank No. 3 can only supply the slurry pumps No. 5 and No. 6, media in the slurry tank are slurry (with a concentration of 65% and a viscosity of 800-1500 cp), each slurry tank is equipped with a stirrer, the stirrer operates throughout the year, and has a possibility of occurrence of failure, because the media are special and easily precipitate and agglomerate, the maintenance time for the stirrer is short, and cannot exceed 6 hours, but the stirrer is difficult to maintain under actual conditions, and is usually in about 10 days, if one of the slurry tanks fails, the two high-pressure slurry pumps can not operate normally, and one of the gasification furnace can not operate normally.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming a coal slurry tank among the prior art and breaking down, it is unable normal rather than two high-pressure coal slurry pumps that link to each other to influence the problem of gasifier operation, provide the coal slurry pump feeding system of an intercommunication.
The utility model provides a coal stuff pump feeding system of intercommunication, include:
the bottom of the No. 1 coal slurry tank, the bottom of the No. 2 coal slurry tank and the bottom of the No. 3 coal slurry tank are communicated with a first conveying pipe with a first valve, a second conveying pipe with a second valve and a plunger valve, each first conveying pipe is connected with a first pressurizing coal slurry pump, each second conveying pipe is connected with a second pressurizing coal slurry pump, three-way pipes are arranged on the first conveying pipes between each first valve and each first pressurizing coal slurry pump and on the second conveying pipes between each second valve and each second pressurizing coal slurry pump, and a third valve is arranged on each three-way pipe;
and the two feeding pipelines are arranged, one ends of the two feeding pipelines are respectively communicated with plunger valves connected with the bottoms of the other two coal slurry tanks which are not in fault, and the other ends of the two feeding pipelines are respectively communicated with two third valves arranged at the bottoms of the coal slurry tanks which are in fault.
Preferably, the device further comprises a plurality of blind heads, wherein the blind heads are in one-to-one correspondence with and connected with the third valves and used for plugging the third valves.
Preferably, the number of the blind heads is 6.
Preferably, the feed line is a flanged metal hose.
Preferably, the first valve, the second valve and the third valve are ball valves.
Preferably, the three-way pipe is made of carbon steel.
Preferably, the first pressurizing coal slurry pumps and the second pressurizing coal slurry pumps are communicated with the gasification furnace through pipelines.
Preferably, the No. 1 coal slurry tank, the No. 2 coal slurry tank and the No. 3 coal slurry tank are respectively communicated through a third conveying pipe with a fourth valve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses newly-increased a three-way pipe and third valve at every pressurization slurry pump entry after reforming transform, through plunger valve intercommunication of feeding line and two other slurry tank bottoms portion increase that do not break down, can change the single feed mode of present pressurization slurry pump, when the slurry tank breaks down, realize the online switching of slurry pump, guarantee the steady operation of gasifier system, change original incident emergence because of the slurry tank trouble parks.
2. The utility model discloses any one in the new charge-in pipeline that increases of pressurization slurry pump all can be connected with two other slurry grooves, does not have the limitation.
3. The utility model discloses can solve the incident that the gasification furnace must park in prior art and take place, the expense of opening the parking of every gasification furnace is about 50 ten thousand yuan, consequently the cost is saved by about 100 ten thousand yuan to the prediction every year
Drawings
FIG. 1 is a prior art process flow diagram;
fig. 2 is a process flow chart of the present invention.
Description of reference numerals:
1. the system comprises a first conveying pipe, 2 parts of a second conveying pipe, 3 parts of a plunger valve, 4 parts of a first pressurizing coal slurry pump, 5 parts of a second pressurizing coal slurry pump and 6 parts of a three-way pipe.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying fig. 2, but it should be understood that the scope of the present invention is not limited by the following detailed description. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Examples
As shown in fig. 2, the utility model provides a pair of coal slurry pump feeding system of intercommunication, include: the bottom of the No. 1 coal slurry tank, the bottom of the No. 2 coal slurry tank and the bottom of the No. 3 coal slurry tank are communicated with a first conveying pipe 1 with a first valve, a second conveying pipe 2 with a second valve and a plunger valve 3, each first conveying pipe 1 is connected with a first pressurizing coal slurry pump 4, each second conveying pipe 2 is connected with a second pressurizing coal slurry pump 5, three-way pipes 6 are arranged on the first conveying pipe 1 between each first valve and each first pressurizing coal slurry pump 4 and on the second conveying pipe 2 between each second valve and each second pressurizing coal slurry pump 5, and a third valve is arranged on each three-way pipe 6;
and the two feeding pipelines are arranged, one ends of the two feeding pipelines are respectively communicated with the plunger valves 3 connected with the bottoms of the other two coal slurry tanks which are not in fault, and the other ends of the two feeding pipelines are respectively communicated with the two third valves arranged at the bottoms of the coal slurry tanks which are in fault.
The mutually communicated coal slurry pump feeding system further comprises a plurality of blind heads, wherein the blind heads are in one-to-one correspondence with and connected with the third valves and used for plugging the third valves.
Further, the number of the blind heads is 6.
Further, the feed line is a flanged metal hose.
Further, the first valve, the second valve and the third valve are all ball valves.
Further, the three-way pipe 6 is made of carbon steel.
Further, the plurality of first pressurizing coal slurry pumps 4 and the plurality of second pressurizing coal slurry pumps 5 are communicated with the gasification furnace through pipelines.
Furthermore, the No. 1 coal slurry tank, the No. 2 coal slurry tank and the No. 3 coal slurry tank are respectively communicated through a third conveying pipe with a fourth valve, and the third conveying pipe is used for enabling coal slurry entering the No. 1 coal slurry tank, the No. 2 coal slurry tank and the No. 3 coal slurry tank to have the same liquid level height.
The process principle is as follows:
the coal slurry is pressurized by a high-pressure coal slurry feed pump (8.9 MPa) and is subjected to partial oxidation reaction with oxygen produced by air separation (9.7 MPa) in a gasification furnace (1300 ℃), CO and H are produced 2 The water gas as the main component is washed by a carbon washing tower and then sent to a conversion section. And simultaneously, carrying out flash evaporation on the black water of the system through working procedures such as grey water treatment and the like, recovering heat and grey water, and separating fine slag.
In order to solve the problem that a stirrer in a coal slurry tank in a high-pressure coal slurry pump coal slurry feeding system of an existing gasification furnace breaks down, a first pressurizing coal slurry pump and a second pressurizing coal slurry pump which are communicated with the broken coal slurry tank through a first conveying pipe and a second conveying pipe cannot normally operate, and therefore the problem that the normal operation of the two gasification furnaces is affected is solved, and the existing high-pressure coal slurry pump coal slurry feeding system needs to be modified.
Materials required in reconstruction: 3 12 ' -150 lb-plunger valves, 12 ' -150 lb-ball valves, 6 carbon steel tees, 6 blind heads, 12 ' -150lb, 12 "flanged metal hose 30 m 2, 12" 12 inches, internal diameter 300mm,150lb 150 lbs.
Accomplish the installation work of 3 first pressurization coal slurry pump 4's entry and 3 second pressurization coal slurry pump 5 entrances newly-increased three-way pipes 6 and ball valves and the installation work of the ball valve on first conveyer pipe 1 and the second conveyer pipe 2 (6 pressurization coal slurry pumps need 12 ball valves altogether) when the gasifier parks, accomplish 1# coal slurry groove when entire system parks, the installation work of 3 plunger valves in the bottom in 2# coal slurry groove and 3# coal slurry groove, the ball valve of installing on 3 three-way pipes 6 carries out the shutoff with the blind head when not using.
When no fault occurs in the No. 1 coal slurry tank, the No. 2 coal slurry tank and the No. 3 coal slurry tank, only the ball valves arranged on the first conveying pipe 1 and the second conveying pipe 2 communicated with the bottoms of the coal slurry tanks, the first pressurizing coal slurry pump 4 and the second pressurizing coal slurry pump 5 need to be opened, then the coal slurry in the No. 1 coal slurry tank, the No. 2 coal slurry tank and the No. 3 coal slurry tank is sent into the corresponding gasification furnaces through the first conveying pipe 1, the second conveying pipe 2, the first pressurizing coal slurry pump 4 and the second pressurizing coal slurry pump 5, and is subjected to partial oxidation reaction with oxygen sent into the gasification furnaces in the gasification furnaces to produce process gas taking carbon monoxide and hydrogen as main components.
When the No. 1 coal slurry tank fails, the first pressurizing coal slurry pump 4 communicated with the first conveying pipe 1 arranged at the bottom of the No. 1 coal slurry tank and the second pressurizing coal slurry pump 5 communicated with the second conveying pipe 2 cannot work normally, and at the moment, the normal operation of the gasification furnace is influenced, so that the normal operation of the gasification furnace is ensured, at the moment, a first valve (ball valve) on the first conveying pipe 1 communicated with the bottom of the No. 1 coal slurry tank with the failure and a second valve (ball valve) on the second conveying pipe 2 communicated with the bottom of the No. 1 coal slurry tank with the failure need to be closed, then a blind head in a third valve (ball valve) arranged on a three-way pipe connected with the first conveying pipe 1 and a third valve (ball valve) arranged on a three-way pipe connected with the second conveying pipe 2 are removed, then two feeding pipelines (metal hoses with flanges) are used for connecting the No. 2 coal slurry tank without the failure and the No. 3 coal slurry tank, wherein one ends of the two feeding pipelines are respectively communicated with the No. 2 coal slurry tank and the plunger 6 on the bottom of the coal slurry tank with the three-way pipe 1 with the first pipe with the failure, and the three-way pipe 6 on the three-way pipe connected with the three-way pipe on the bottom of the three-way pipe with the No. 1 with the first pipe with the No. 2 coal slurry tank with the failure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An intercommunicating slurry pump feed system, comprising:
the coal slurry pump comprises a No. 1 coal slurry tank, a No. 2 coal slurry tank and a No. 3 coal slurry tank, wherein the bottoms of the two coal slurry tanks are communicated with a first conveying pipe (1) with a first valve, a second conveying pipe (2) with a second valve and a plunger valve (3), the first conveying pipes (1) are connected with a first pressurizing coal slurry pump (4), the second conveying pipes (2) are connected with a second pressurizing coal slurry pump (5), three-way pipes (6) are arranged on the first conveying pipes (1) between the first valves and the first pressurizing coal slurry pumps (4) and the second conveying pipes (2) between the second valves and the second pressurizing coal slurry pumps (5), and a third valve is arranged on each three-way pipe (6);
and the two feeding pipelines are arranged, one ends of the two feeding pipelines are respectively communicated with the plunger valves (3) connected with the bottoms of the other two coal slurry tanks which do not break down, and the other ends of the two feeding pipelines are respectively communicated with the two third valves arranged at the bottoms of the coal slurry tanks which break down.
2. The slurry pump feed system as recited in claim 1, further comprising a plurality of blind heads, wherein the blind heads are connected to the third valves in a one-to-one correspondence, and are configured to block the third valves.
3. An intercommunicating slurry pump supply system according to claim 2, wherein said number of blind heads is 6.
4. An intercommunicating slurry pump feed system according to claim 1, wherein the feed line is a flanged metal hose.
5. An intercommunicating slurry pump supply system according to claim 1, wherein said first, second and third valves are ball valves.
6. An intercommunicating slurry pump feed system according to claim 1, wherein the tee (6) is made of carbon steel.
7. An intercommunicating slurry pump feed system according to claim 1, wherein the first and second pressurized slurry pumps (4, 5) are connected to the gasifier via pipes.
8. The intercommunicating slurry pump feeding system of claim 1, wherein the # 1 slurry tank, the # 2 slurry tank and the # 3 slurry tank are communicated with each other through a third delivery pipe with a fourth valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222453654.2U CN218454164U (en) | 2022-09-16 | 2022-09-16 | Coal slurry pump feeding system of intercommunication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222453654.2U CN218454164U (en) | 2022-09-16 | 2022-09-16 | Coal slurry pump feeding system of intercommunication |
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| Publication Number | Publication Date |
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| CN218454164U true CN218454164U (en) | 2023-02-07 |
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| CN202222453654.2U Active CN218454164U (en) | 2022-09-16 | 2022-09-16 | Coal slurry pump feeding system of intercommunication |
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