CN209501653U - A kind of adipic acid slurry delivery system - Google Patents
A kind of adipic acid slurry delivery system Download PDFInfo
- Publication number
- CN209501653U CN209501653U CN201920135200.6U CN201920135200U CN209501653U CN 209501653 U CN209501653 U CN 209501653U CN 201920135200 U CN201920135200 U CN 201920135200U CN 209501653 U CN209501653 U CN 209501653U
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- China
- Prior art keywords
- storage tank
- reaction kettle
- tank
- adipic acid
- pressure
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Abstract
The utility model discloses a kind of adipic acid slurry delivery systems, including storage tank and the reaction kettle being connected with storage tank, inlet valve is equipped between storage tank and reaction kettle, the top of the reaction kettle is equipped with pressurized tank, it is equipped with vacuum pump on the outside of pressurized tank, is communicated between pressurized tank and reaction kettle by No.1 pressure pipeline, No.1 pressure pipeline is equipped with No.1 breather valve, the bottom of the reaction kettle is equipped with exhaust pipe, and exhaust pipe is equipped with first row air valve；It is arranged with scavenging conduit on pipeline on the right side of inlet valve between the storage tank and reaction kettle, scavenging conduit is connected with nitrogen storage tank, and the scavenging conduit is equipped with air valve.The adipic acid slurry delivery system of the utility model can guarantee the unimpeded of pipeline, avoid adipic acid from remaining in duct wall, improve whole production efficiency, avoid the waste of adipic acid material, while having saved manpower and material resources cost.
Description
Technical field
The utility model relates to chemical production technical fields, and in particular to a kind of adipic acid slurry delivery system.
Background technique
Adipic acid is also known as adipic acid, belongs to aliphatic dibasic acid, is a kind of important industrial chemicals, be production nylon fiber,
One of the primary raw material of nylon resin and polyurethane foam plastics etc..As the foamed plastics such as polyurethane are not counting development, poly- ammonia
The demand of ester is also constantly rising, and by the polyester polyol that adipic acid synthesizes is indispensable in the production process of polyurethane
One of raw material, and current polyester polyol generally uses batch process to produce, and reaction process is divided into esterification and ester is handed over
Two stages of reaction are changed, and the addition of polyacid is always to perplex the problem of batch process produces in polyester polyol production process,
The disadvantages of there are feed times longer, low efficiency, high energy consumption, and the High Temperature Gas during charging of uncapping is to equipment and environment
It pollutes more serious, is detrimental to health, in addition if directly conveying polyacid into reaction kettle, easily there is blocking conveyance conduit
Problem causes the cost of overhaul higher, while influencing whole production efficiency.
Utility model content
In view of the above problems, the object of the present invention is to provide a kind of adipic acid slurry delivery system, slurry conveyings
System can effectively avoid the blocking of conveyance conduit, improve whole production efficiency, saved manpower and material resources cost.
To achieve the above objectives, the present invention adopts the following technical solutions:
A kind of adipic acid slurry delivery system, including storage tank and the reaction kettle being connected with storage tank, storage tank with
Inlet valve is equipped between reaction kettle, the top of the reaction kettle is equipped with pressurized tank, be equipped with vacuum pump on the outside of pressurized tank, pressurized tank with
It is communicated between reaction kettle by No.1 pressure pipeline, No.1 pressure pipeline is equipped with No.1 breather valve, the bottom of the reaction kettle
Equipped with exhaust pipe, exhaust pipe is equipped with first row air valve；Divide on pipeline on the right side of inlet valve between the storage tank and reaction kettle
Equipped with scavenging conduit, scavenging conduit is connected with nitrogen storage tank, and the scavenging conduit is equipped with air valve.
It is equipped with temporary storage tank before the storage tank, is equipped with filtering tank before temporary storage tank, is equipped between the filtering tank and temporary storage tank
First check valve is equipped with second one-way valve, the first conveying is additionally provided between temporary storage tank and storage tank between temporary storage tank and storage tank
Pump；It is connected by No. two pressure pipelines with No.1 pressure pipeline at the top of the storage tank, No. two pressure pipelines are equipped with two
Number breather valve, the bottom of the storage tank are equipped with exhaust pipe, and exhaust pipe is equipped with second row air valve.
Circulating line is equipped between the storage tank and temporary storage tank, circulating line is equipped with third check valve and the second conveying
Pump.
Pressure sensor is equipped in the pressurized tank, pressure sensor is electrically connected with control unit.
Compared with prior art, the adipic acid slurry delivery system of the utility model is set the utility model on reaction kettle top
Pressurized tank is set, when conveying material to reaction kettle from storage tank, opens the No.1 breather valve between pressurized tank and reaction kettle, simultaneously
It opens vacuum pump to vacuumize pressurized tank, and then makes the reacting kettle inner pressure being connected with pressurized tank reduction, material is in pressure difference
Under the action of conveyed into reaction kettle, since there are pressure differences during conveying for material, material conveying speed is significantly
It improves, and then improves whole production efficiency, and under pressure, material is not easy to remain in pipeline, so as to effective
Avoid blocking of the adipic acid to pipeline, in addition nitrogen storage tank be set between storage tank and reaction kettle, can periodically to pipeline into
Row purging, further to reach the cleaning to material in pipeline, avoids feed blocking, to guarantee the normal conveying of material, keeps away
Exempt to lead to pipeline maintenance because of blocking, reduce manpower and material resources, saves production cost.The adipic acid slurry of the utility model conveys
System can guarantee the unimpeded of pipeline, avoid adipic acid from remaining in duct wall, improve whole production efficiency, avoid adipic acid
The waste of material, while having saved manpower and material resources cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
To more fully understand those skilled in the art to the utility model, With reference to embodiment to this reality
It is described further with novel:
As shown in Figure 1, a kind of adipic acid slurry delivery system, reacts including storage tank 5 and with what storage tank 5 was connected
Kettle 12, is equipped with inlet valve 14 between storage tank 5 and reaction kettle 12, the top of the reaction kettle 12 is equipped with pressurized tank 8, pressurized tank 8
Outside is equipped with vacuum pump 10, is communicated between pressurized tank 8 and reaction kettle 12 by No.1 pressure pipeline 11, is set on No.1 pressure pipeline
There is No.1 breather valve 13, the bottom of the reaction kettle 12 is equipped with exhaust pipe, and exhaust pipe is equipped with first row air valve 16；The storing
It is arranged with scavenging conduit on 14 right side pipeline of inlet valve between tank 5 and reaction kettle 12, scavenging conduit is connected with nitrogen storage tank 17, institute
Scavenging conduit is stated equipped with air valve 15.
Be equipped with temporary storage tank 3 before the storage tank 5, be equipped with filtering tank 1 before temporary storage tank 3, the filtering tank 1 and temporary storage tank 3 it
Between be equipped with the first check valve 2, between temporary storage tank 3 and storage tank 5 be equipped with second one-way valve 21, between temporary storage tank 3 and storage tank 5 also
Equipped with the first dehvery pump 19；It is connected by No. two pressure pipelines 6 with No.1 pressure pipeline 11 at the top of the storage tank 5, described two
Number pressure pipeline 6 is equipped with No. two breather valves 7, and the bottom of the storage tank is equipped with exhaust pipe, and exhaust pipe is equipped with second exhaust
Valve 18.Temporary storage tank and filtering tank are set before storage tank, and filtration treatment before can carrying out to adipic acid material first removes oneself two
Impurity or large particulate matter in wintercherry material, then filtered slurry is stored in temporary storage tank, then defeated into storage tank
It send, No. two breather valves on No. two pressure pipelines is opened while conveying slurry into storage tank, close No.1 breather valve, so
Storing pressure inside the tank reduces afterwards, and slurry is delivered to the right rapidly storage tank under the action of pressure difference, opens storage after the completion of conveying
The second row air valve of batch can bottom, pressure is discharged, and is then shut off No. two breather valves and second row air valve, opens No.1 ventilation
Valve, storing pressure inside the tank is normal at this time, and reacting kettle inner pressure reduces, thus by feed liquid smooth delivery of power to reaction kettle, and slurry
It is not easy to avoid the blocking of the pipeline of entire conveying material in pipeline residual in pressure effect, avoids tubular service, improve production
Efficiency.
Circulating line is equipped between the storage tank 5 and temporary storage tank 3, circulating line is equipped with third check valve 20 and second
Dehvery pump 4 can star the first dehvery pump and the second dehvery pump, by temporary storage tank and perfusion tube during reaction kettle reaction
Interior size circulations get up, and avoid adipic acid slurry from occurring to crystallize or stick on the inside of tank body in tank body, guarantee adipic acid
The mobility of slurry.
It is equipped with pressure sensor 9 in the pressurized tank 8, pressure sensor 9 is electrically connected with control unit, and pressure sensing is arranged
Device can monitor the pressure in pressurized tank in time, avoid its excessive and lead to the too low influence normal reaction of reacting kettle inner pressure, or
Person is too small and does not have the effect pumped material and avoid material adhesion pipeline.
Claims (4)
1. a kind of adipic acid slurry delivery system, it is characterised in that: be connected including storage tank (5) and with storage tank (5)
Reaction kettle (12) is equipped with inlet valve (14) between storage tank (5) and reaction kettle (12), and the top of the reaction kettle (12) is equipped with pressure
Power tank (8), pressurized tank (8) outside are equipped with vacuum pump (10), pass through No.1 pressure pipeline between pressurized tank (8) and reaction kettle (12)
(11) it communicates, No.1 pressure pipeline is equipped with No.1 breather valve (13), and the bottom of the reaction kettle (12) is equipped with exhaust pipe, exhaust
Pipe is equipped with first row air valve (16)；Divide on pipeline on the right side of inlet valve (14) between the storage tank (5) and reaction kettle (12)
Equipped with scavenging conduit, scavenging conduit is connected with nitrogen storage tank (17), and the scavenging conduit is equipped with air valve (15).
2. adipic acid slurry delivery system according to claim 1, it is characterised in that: be equipped with before the storage tank (5) temporary
It deposits tank (3), is equipped with filtering tank (1) before temporary storage tank (3), the first check valve is equipped between the filtering tank (1) and temporary storage tank (3)
(2), second one-way valve (21) are equipped between temporary storage tank (3) and storage tank (5), are additionally provided between temporary storage tank (3) and storage tank (5)
First dehvery pump (19)；It is connected by No. two pressure pipelines (6) with No.1 pressure pipeline (11) at the top of the storage tank (5), institute
No. two pressure pipelines (6) are stated equipped with No. two breather valves (7), the bottom of the storage tank is equipped with exhaust pipe, and exhaust pipe is equipped with
Second row air valve (18).
3. adipic acid slurry delivery system according to claim 2, it is characterised in that: the storage tank (5) and temporary storage tank
(3) circulating line is equipped between, circulating line is equipped with third check valve (20) and the second dehvery pump (4).
4. adipic acid slurry delivery system according to claim 3, it is characterised in that: be equipped with pressure in the pressurized tank (8)
Force snesor (9), pressure sensor (9) are electrically connected with control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135200.6U CN209501653U (en) | 2019-01-26 | 2019-01-26 | A kind of adipic acid slurry delivery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920135200.6U CN209501653U (en) | 2019-01-26 | 2019-01-26 | A kind of adipic acid slurry delivery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209501653U true CN209501653U (en) | 2019-10-18 |
Family
ID=68202762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920135200.6U Expired - Fee Related CN209501653U (en) | 2019-01-26 | 2019-01-26 | A kind of adipic acid slurry delivery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209501653U (en) |
-
2019
- 2019-01-26 CN CN201920135200.6U patent/CN209501653U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 Termination date: 20220126 |