CN109776242A - A kind of vented single -screw extruder preparing high plastic state explosive wastewater for solvent method - Google Patents
A kind of vented single -screw extruder preparing high plastic state explosive wastewater for solvent method Download PDFInfo
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- CN109776242A CN109776242A CN201910086423.2A CN201910086423A CN109776242A CN 109776242 A CN109776242 A CN 109776242A CN 201910086423 A CN201910086423 A CN 201910086423A CN 109776242 A CN109776242 A CN 109776242A
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- screw rod
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of vented single -screw extruders that high plastic state explosive wastewater is prepared for solvent method, overflow are avoided while capable of being effectively vented, material is cooling uniform and screw rod is avoided to sweep thorax.The device includes single screw rod 3, machine barrel 5, reduction gearbox 6, hydraulic motor 7, hydraulic pressure opening device 2, rack 1, by the way that double thread is arranged in screw rod exhaust section, and increase c-type chamber in machine barrel exhaust outlet side, overflow is prevented while exhaust, mixing section is set in screw rod outer surface, increase the contact area of material and screw rod and machine barrel, it prevents internal layer material from generating hot spot, and uses vertical machine barrel, prevent single screw rod sweeps thorax, the safety of the high plastic state explosive wastewater of solvent method pressure stretch is improved, and is convenient to clean.
Description
Technical field
The invention belongs to explosive wastewater preparation fields, are related to a kind of vented single -screw extruder, and in particular to one kind is used for
Solvent method prepares the continuous vented single screw extrusion machine of high plastic state explosive wastewater.
Background technique
Solvent method prepares high plastic state explosive wastewater and mainly relies on intermittent type mould pressing process at present, does not use continous way single screw rod
Pressure stretch technique, main cause are that the burning point of solvent is lower, and continous way pressure stretch operation pressure is higher, and material heat transfer in head
Scarce capacity, hot spot easy to form, solvent is quick-fried by sudden strain of a muscle is easy to happen after adiabatic compression, and then lights material and cause danger.Cause
This will realize that solvent method prepares high plastic state explosive wastewater continuous production, need that cellulose will be free on before material is compressed
Outer solvent discharge, and consider overflow problem when exhaust, while promoting the temperature of material more uniform, it prevents from existing due to material
Hot spot is generated when pressure stretch.
Utility model CN206631553U discloses one kind and is vacuum-evacuated single screw rod for PVC cable material multisection type, passes through
Design vaccum exhaust outlet in single-screw barrel, and surge chamber be set in exhaust outlet, by check valve connect vacuum generator into
Row exhaust.Utility model CN207509679U discloses a kind of vented single -screw extruder, by before single screw extrusion machine
Material is carried out preheating and is allowed to melt by end increase hot melt storehouse, and subsequent material, which enters decompression exhaust storehouse, makes material by ultrasonic vibration stick
Rolling, and gas is discharged by vacuum pump.Utility model CN201376340Y discloses a kind of waste and old modeling of exhaust-type single-screw
Material recycling extruder improves exhaust effect by increasing spiral groove depth in exhaust section.Section 3 patent in three of the above patent
It is closest with the present invention.
But the device of utility model CN201376340Y has the disadvantage in that (1) for high plastic state material in exhaust section
The problem of being easy to appear overflow；(2) single screw rod screw channel is deeper, bad to the temperature of charge exchange being clipped in the middle part of screw channel, is easy
Existing hot spot；(3) single screw rod is cantilever design, and salvage stores is difficult to clear up after production process.Therefore needing to develop one kind can be vented
And will not overflow, heat exchange effect is good and is capable of the single screw extrusion machine of easy cleaning.
Summary of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to develop it is a kind of can be vented and will not overflow, it is hot
Exchange effect is good and is capable of the single screw extrusion machine of easy cleaning.
To achieve the goals above, this invention takes following technical solutions:
A kind of vented single -screw extruder preparing high plastic state explosive wastewater for solvent method, characterized by comprising: single
Screw rod, machine barrel, reduction gearbox, hydraulic motor, hydraulic pressure opening device, rack；Wherein the single screw rod is located in machine barrel, passes through keyway
It is connected with reduction gearbox and hydraulic motor；The machine barrel is connected by flange with hydraulic pressure opening device；The hydraulic pressure opening device with
Reduction gearbox is fixed in rack.
The above-mentioned vented single -screw extruder that high plastic state explosive wastewater is prepared for solvent method, the single screw rod have conveying
Section, mixing section 1, exhaust section, mixing section 2 lead to cooling water in single screw rod；The mixing section 1 and mixing section 2 are spiral-distributed water chestnut
Shape pin can shunt material while conveying to material, allow material to generate new surface, wherein mixing section
1 can promote to wrap up in the miscellaneous free state solvent spilling surface of material inside material, and effectively be discharged after entering exhaust section, be kneaded
Section 2 can promote the heat exchange of screw channel internal layer material Yu screw rod, machine barrel, reduce the temperature of internal layer material, reduce ectonexine material
Temperature difference, reduce internal layer material enter head before due to temperature diffusion relatively slowly generate hot spot；The exhaust section groove depth is defeated
3 times for sending section groove depth, exhaust section is double thread, improves the forward conveying capacity of exhaust section screw rod, prevents material due to head
Back pressure causes overflow；The length of the exhaust section determines that wherein solvent content is 20%-30%, exhaust according to solvent content
Segment length is 3D, and solvent content 30%-50%, exhaust segment length is 5D, and solvent content is 50% or more, and exhaust segment length is
7D。
The above-mentioned vented single -screw extruder that high plastic state explosive wastewater is prepared for solvent method, the machine barrel are vertical machine
Cylinder prevents material from screw rod occurring before entering machine barrel and sweeps thorax using gravity；The machine barrel is radially split type structure, convenient
Screw rod and machine barrel are cleared up, while pressure release can be opened when superpressure rapidly in machine barrel, the machine barrel and the screw rod exhaust section phase
Corresponding position is provided with exhaust outlet, while exhaust outlet side machine tube inner wall designs C-shaped grooves, increases the volume of exhaust section, into one
Step prevents material back pressure from increasing generation overflow；There is cooling water cycle water set in the machine barrel.
Compared with prior art, overflow is avoided while the invention has the advantages that can effectively be vented, material is cooling uniform
And screw rod is avoided to sweep thorax.The realization of the advantage is the technology by following three aspect: (1) by the way that double end is arranged in screw rod exhaust section
Screw thread improves conveying capacity of the screw rod in exhaust section, and increases c-type chamber in machine barrel exhaust outlet side, increases the appearance of exhaust section
Product, further prevents overflow；(2) screw rod and machine barrel lead to cooling water, and two sections of mixing sections are arranged in screw rod outer surface, by material stream
Road carries out subdivision, and material is made to generate new surface, increases the contact area of material and screw rod and machine barrel, reduces the temperature of internal layer material
Degree prevents internal layer material from generating hot spot；(3) single screw rod and machine barrel are vertical, can be by machine barrel transverse direction using radially split type structure
Open, screw rod is completely exposed, easy cleaning, while can when dangerous situation occurs quick pressure releasing.
Detailed description of the invention
A kind of Fig. 1: vented single -screw extruder structural schematic diagram preparing high plastic state explosive wastewater for solvent method.
A kind of Fig. 2: vented single -screw extruder single screw rod structure signal preparing high plastic state explosive wastewater for solvent method
Figure
1. rack in figure, 2. hydraulic pressure opening devices, 3. single screw rods, 4. exhaust outlets, 5. machine barrels, 6. reduction gearboxes, 7. hydraulic horses
It reaches, the conveying section 3-1., 3-2. mixing section 1,3-3. exhaust section, 3-4. mixing section 2.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawings of the specification.
Referring to Fig. 1, a kind of vented single -screw extruder that high plastic state explosive wastewater is prepared for solvent method of the invention,
1 is rack, and 2 be hydraulic pressure opening device, and 3 be single screw rod, and 4 be exhaust outlet, and 5 be machine barrel, and 6 be reduction gearbox, and 7 be hydraulic motor.
Embodiment 1
A kind of vented single -screw extruder preparing high plastic state explosive wastewater for solvent method described in this embodiment, master
It is used for the companding shaping for the propellant powder that solvent content is 30%.
Referring to Fig. 2, the single screw rod has conveying section, mixing section 1, exhaust section, mixing section 2, lead to cooling water in screw rod；Institute
It states mixing section 1 and mixing section 2 is spiral-distributed diamond shape pin；The exhaust section groove depth is 3 times of conveying section groove depth, exhaust section
For double thread；The length of the exhaust section is 3D.
Referring to Fig. 1, the machine barrel is vertical machine barrel；The machine barrel is radially split type structure, and machine barrel and screw rod are vented
The corresponding position of section is provided with exhaust outlet, while exhaust outlet side machine tube inner wall designs C-shaped grooves；There is cooling water in the machine barrel
Cyclic water jacket.
Embodiment 2
A kind of vented single -screw extruder preparing high plastic state explosive wastewater for solvent method described in this embodiment, master
It is used for the companding shaping for the propellant that solvent content is 50%.
Referring to Fig. 2, the single screw rod has conveying section, mixing section 1, exhaust section, mixing section 2, lead to cooling water in screw rod；Institute
It states mixing section 1 and mixing section 2 is spiral-distributed diamond shape pin；The exhaust section groove depth is 3 times of conveying section groove depth, exhaust section
For double thread；The length of the exhaust section is 5D.
The present invention is not limited to the above embodiments, and technical solution is explained in Summary.
Claims (1)
1. a kind of vented single -screw extruder for preparing high plastic state explosive wastewater for solvent method, comprising: single screw rod (3), machine barrel
(5), reduction gearbox (6), hydraulic motor (7), hydraulic pressure opening device (2), rack (1)；Wherein the single screw rod (3) is located at machine barrel
(5) in, it is connected by keyway with reduction gearbox (6) and hydraulic motor (7)；The machine barrel (5) passes through flange and hydraulic pressure opening device
(2) it is connected；The hydraulic pressure opening device (2) and reduction gearbox (6) are fixed on rack (1)；
The single screw rod (3) has conveying section (3-1), mixing section 1 (3-2), exhaust section (3-3), mixing section 2 (3-4), single screw rod
(3) lead to cooling water in；The mixing section 1 (3-2) and mixing section 2 (3-4) are spiral-distributed diamond shape pin；The exhaust section
(3-3) groove depth is 3 times of conveying section (3-1) groove depth, and exhaust section (3-3) is double thread；The length root of the exhaust section (3-3)
It is determined according to solvent content, wherein solvent content is 20%-30%, and exhaust section (3-3) length is 3D, solvent content 30%-
50%, exhaust section (3-3) length is 5D, and solvent content is 50% or more, and exhaust section (3-3) length is 7D；
The machine barrel (5) is vertical machine barrel；The machine barrel (5) is radially split type structure, and the machine barrel (5) and the screw rod are arranged
The corresponding position of gas section (3-3) is provided with exhaust outlet (4), while exhaust outlet (4) side machine tube inner wall designs C-shaped grooves；It is described
There is cooling water cycle water set in machine barrel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910086423.2A CN109776242B (en) | 2019-01-29 | 2019-01-29 | Exhaust type single-screw extruder for preparing high-viscosity explosives and powders by solvent method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910086423.2A CN109776242B (en) | 2019-01-29 | 2019-01-29 | Exhaust type single-screw extruder for preparing high-viscosity explosives and powders by solvent method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109776242A true CN109776242A (en) | 2019-05-21 |
| CN109776242B CN109776242B (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910086423.2A Active CN109776242B (en) | 2019-01-29 | 2019-01-29 | Exhaust type single-screw extruder for preparing high-viscosity explosives and powders by solvent method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700247A (en) * | 1971-08-16 | 1972-10-24 | May V Latinen | Flush cooling of shaft sealing screw means |
| CN202071321U (en) * | 2011-04-06 | 2011-12-14 | 北京化工大学 | Exhaust type differential speed double screw extruder |
| CN204773492U (en) * | 2015-07-20 | 2015-11-18 | 苏州金韦尔机械有限公司 | A screw rod for stone paper extruder |
| CN207901639U (en) * | 2018-02-11 | 2018-09-25 | 浙江中扬螺杆制造有限公司 | A kind of energy-efficient PC makes material cone twin-screw |
-
2019
- 2019-01-29 CN CN201910086423.2A patent/CN109776242B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700247A (en) * | 1971-08-16 | 1972-10-24 | May V Latinen | Flush cooling of shaft sealing screw means |
| CN202071321U (en) * | 2011-04-06 | 2011-12-14 | 北京化工大学 | Exhaust type differential speed double screw extruder |
| CN204773492U (en) * | 2015-07-20 | 2015-11-18 | 苏州金韦尔机械有限公司 | A screw rod for stone paper extruder |
| CN207901639U (en) * | 2018-02-11 | 2018-09-25 | 浙江中扬螺杆制造有限公司 | A kind of energy-efficient PC makes material cone twin-screw |
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| CN109776242B (en) | 2021-05-18 |
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