CN110018526B - Foreign matter detection system before maleic anhydride preparation system operation - Google Patents
Foreign matter detection system before maleic anhydride preparation system operation Download PDFInfo
- Publication number
- CN110018526B CN110018526B CN201910421851.6A CN201910421851A CN110018526B CN 110018526 B CN110018526 B CN 110018526B CN 201910421851 A CN201910421851 A CN 201910421851A CN 110018526 B CN110018526 B CN 110018526B
- Authority
- CN
- China
- Prior art keywords
- fixed
- maleic anhydride
- foreign matter
- detection box
- annular mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 55
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 17
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 17
- 241001330002 Bambuseae Species 0.000 claims description 17
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 17
- 239000011425 bamboo Substances 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 239000010985 leather Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- 239000005949 Malathion Substances 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229920000180 alkyd Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- HXLVCCRPDYIRRX-UHFFFAOYSA-N iodoamine Chemical compound IN HXLVCCRPDYIRRX-UHFFFAOYSA-N 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229960000453 malathion Drugs 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000141 poly(maleic anhydride) Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a foreign matter detection system before a maleic anhydride preparation system runs, which comprises a detection box and a supporting plate, wherein the detection box is fixed at the top of the supporting plate, a stamping device and a connecting device are respectively arranged on two sides of the detection box, the output end of the stamping device is communicated with the detection box, the detection box is communicated with a reactor through the connecting device, an alarm device is fixed on the outer side of the detection box, an air pressure sensor is fixed on the inner side of the detection box, the air pressure sensor and the connecting device are respectively and electrically connected with the alarm device, and the foreign matter detection system before the maleic anhydride preparation system runs can detect whether foreign matters exist in the reactor before the maleic anhydride preparation, so that the maleic anhydride reaction is smoothly carried out, is suitable for reactors of different types, and has high practicability.
Description
Technical Field
The invention relates to the technical field of maleic anhydride preparation, in particular to a foreign matter detection system before a maleic anhydride preparation system runs.
Background
Maleic anhydride, also known as maleic anhydride, 2, 5-furandione, and the like. Orthorhombic colorless needle-like or plate-like crystals. Has strong pungent smell, is soluble in ethanol, diethyl ether and acetone, and is insoluble in petroleum ether and carbon tetrachloride. Reacting with hot water to obtain maleic acid. The method is mainly used for producing unsaturated polyester resin, alkyd resin, malathion pesticide, 4049 high-efficiency low-toxicity pesticide and long-acting iodoamine. Also is a comonomer of paint, maleic rosin, polymaleic anhydride and maleic anhydride-styrene copolymer, and also is an organic chemical raw material for producing printing ink auxiliary agents, papermaking auxiliary agents, plasticizers, tartaric acid, fumaric acid, tetrahydrofuran and the like.
In the reaction part of the maleic anhydride process, air is compressed, mixed with n-butane and fed into a tubular catalytic reactor. The heat of reaction is removed by cooling the reactor tubes with heat transfer salts. The circulating salt is cooled in an external boiler, in which high-pressure steam is generated. The reactor outlet gas, containing maleic anhydride, is cooled in a heat exchanger and additional high pressure steam is generated. This gaseous material is then further cooled in a switched cooler which recovers heat by preheating the boiler feed water. And the cooled gas material enters the bottom of the absorption tower.
When the maleic anhydride preparation system is operated, if foreign matters and impurities exist in the reactor, irreparable damage can be caused to the whole production system. Therefore, it is necessary to perform detection before the operation of the preparation system, and once the apparatus is operated, it is extremely difficult to detect impurities in the system. Therefore, a foreign matter detection system before the operation of the maleic anhydride preparation system is proposed.
Disclosure of Invention
The invention aims to provide a foreign matter detection system before a maleic anhydride preparation system is operated so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: foreign matter detecting system before maleic anhydride preparation system operation, including detection case and backup pad, the detection case is fixed at the top of backup pad, and the both sides of detection case are equipped with stamping device and connecting device respectively, stamping device's output and detection case intercommunication, and the detection case passes through connecting device and reactor intercommunication, the outside of detection case is fixed with alarm device, the inboard of detection case is fixed with baroceptor, baroceptor and connecting device respectively with alarm device electric connection.
Preferably, the stamping device comprises a high-pressure air storage tank and an air conveying pipe, one end of the air conveying pipe is communicated with the output end of the high-pressure air storage tank, and the other end of the air conveying pipe is communicated with the detection box.
Preferably, the alarm device comprises an audible and visual alarm and a controller, the air pressure sensor is electrically connected with the controller, and the controller is electrically connected with the audible and visual alarm.
Preferably, connecting device includes air duct, fixed plate, toper connector, annular mounting panel, fixed subassembly and drive assembly, the one end and the detection case of air duct are fixed, and communicate with the inside of box, the other end of air duct is fixed with one side of the big terminal surface of toper connector, the middle part of toper connector is equipped with the air vent, air vent and air duct intercommunication, be fixed with the leather sheath on the conical surface of toper connector, the bottom of air duct is fixed with the backup pad through the fixed plate, the fixed cover of annular mounting panel is in the outside of air duct, and one side of annular mounting panel is fixed with the toper connector, fixed subassembly and drive assembly all fix on the annular mounting panel, and drive assembly's output and fixed subassembly transmission are connected.
Preferably, the fixed subassembly includes a screw thread section of thick bamboo, screw rod, drive gear, carriage and fixed block, a screw thread section of thick bamboo runs through the edge of annular mounting panel, and rotates with the annular mounting panel through the bearing and be connected, screw rod and screw thread section of thick bamboo threaded connection, and the one end of screw rod is fixed with the carriage, the fixed block cooperates with the inner wall of supporting shoe frame, and with carriage sliding connection, drive gear is fixed to be cup jointed in the outside of a screw thread section of thick bamboo, drive assembly's output and drive gear transmission are connected.
Preferably, a stretching rod is fixed at one end, far away from the vent hole, of the fixing block.
Preferably, one side of the support frame far away from the screw rod is fixed with a limiting assembly, the limiting assembly comprises a bolt and a threaded sleeve, one end of the threaded sleeve and one side of the support frame far away from the screw rod are fixed and communicated with the inside of the support frame, and the bolt is in threaded connection with the threaded sleeve.
Preferably, drive assembly includes driving motor, drive gear, gear wheel, mounting bracket and supports a section of thick bamboo, the fixed cover of gear wheel is connected in the outside of supporting a section of thick bamboo, it rotates with the annular mounting panel through the bearing to support a section of thick bamboo, the gear wheel is connected with drive gear and drive gear meshing respectively, drive gear is fixed with driving motor's output shaft, driving motor passes through the mounting bracket and fixes with the annular mounting panel.
Preferably, the number of the fixing assemblies is three, and the three fixing assemblies are distributed on the outer side of the conical connector at equal angles.
Preferably, the connecting device further comprises a limiting frame, and the limiting frame is fixed with one end, far away from the supporting frame, of each of the three screws respectively.
Compared with the prior art, the invention has the beneficial effects that:
the method can detect whether foreign matters exist in the reactor before the preparation of the maleic anhydride, ensures the smooth proceeding of the maleic anhydride reaction, is suitable for reactors of different models, and has extremely high practicability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the detection box and the connection device of the present invention;
FIG. 3 is a schematic view of a connecting device according to the present invention;
FIG. 4 is a schematic view of a tapered connecting block according to the present invention;
FIG. 5 is a schematic view of the flange connection of the connecting device of the present invention with the feed inlet of the reactor;
FIG. 6 is an enlarged view of area A of FIG. 3;
fig. 7 is an enlarged view of the region B in fig. 4.
In the figure: 1-detection box; 2-a support plate; 3-a stamping device; 4-a connecting means; 5-a limiting frame; 6-an alarm device; 7-a high-pressure gas storage tank; 8-gas conveying pipe; 9-a gas-guide tube; 10-fixing the plate; 11-a tapered connector; 12-a ring-shaped mounting plate; 13-a fixed component; 14-a drive assembly; 15-a vent hole; 16-a threaded cylinder; 17-a screw; 18-a transmission gear; 19-a support frame; 20-fixing block; 21-a stretch rod; 22-a stop assembly; 23-a bolt; 24-a threaded sleeve; 25-a drive motor; 26-a drive gear; 27-a bull gear; 28-a mounting frame; 29-a support cylinder; 30-reactor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: the foreign matter detection system before the maleic anhydride preparation system runs comprises a detection box 1 and a support plate 2, wherein the detection box 1 is fixed at the top of the support plate 2, a stamping device 3 and a connecting device 4 are respectively arranged on two sides of the detection box 1, the output end of the stamping device 3 is communicated with the detection box 1, the detection box 1 is communicated with a reactor 30 through the connecting device 4, an air pressure sensor is fixed on the inner side of the detection box 1 and electrically connected with the connecting device 4, the stamping device 3 comprises a high-pressure air storage tank 7 and an air delivery pipe 8, one end of the air delivery pipe 8 is communicated with the output end of the high-pressure air storage tank 7, the other end of the air delivery pipe 8 is communicated with the detection box 1, a large amount of gas is released by the high-pressure air storage tank 7 during detection, the gas enters the reactor 30 through the detection box 1, and when foreign matters exist in a tube, the pressure inside the detection box 1 is higher than that of the unblocked reactor 30, so that whether foreign matters exist in the reactor 30 can be judged.
The outside of detection case 1 is fixed with alarm device 6, alarm device 6 includes audible-visual annunciator and controller, baroceptor electric connection controller, controller electric connection audible-visual annunciator detects atmospheric pressure when great, with signal feedback to the controller, the work of controller control audible-visual annunciator provides the staff in time to handle when baroceptor.
The connecting device 4 comprises an air duct 9, a fixing plate 10, a conical connector 11, an annular mounting plate 12, a fixing assembly 13 and a driving assembly 14, one end of the air duct 9 is fixed with the detection box 1, and is communicated with the interior of the box body, the other end of the air duct 9 is fixed with one side of the large end surface of the conical connector 11, the middle part of the conical connector 11 is provided with a vent hole 15, the vent hole 15 is communicated with the air duct 9, a leather sheath is fixed on the conical surface of the conical connector 11, the bottom of the air duct 9 is fixed with the supporting plate 2 through a fixing plate 10, the annular mounting plate 12 is fixedly sleeved on the outer side of the air duct 9, and one side of annular mounting panel 12 is fixed with toper connector 11, fixed subassembly 13 all fixes on annular mounting panel 12 with drive assembly 14, and drive assembly 14's output is connected with fixed subassembly 13 transmission.
The fixed component 13 comprises a threaded cylinder 16, a screw rod 17, a transmission gear 18, a supporting frame 19 and a fixed block 20, the threaded cylinder 16 penetrates through the edge of the annular mounting plate 12 and is rotatably connected with the annular mounting plate 12 through a bearing, the screw rod 17 is in threaded connection with the threaded cylinder 16, one end of the screw rod 17 is fixed to the supporting frame 19, the fixed block 20 is matched with the inner wall of the supporting block frame and is in sliding connection with the supporting frame 19, the transmission gear 18 is fixedly sleeved on the outer side of the threaded cylinder 16, and the output end of the driving component 14 is in transmission connection with the transmission gear 18.
The connecting device 4 can be used for connecting feed inlets of reactors 30 of different models, during connection, the feed inlet of the reactor 30 is attached to the conical surface of the conical connector 11, the position of the fixing block 20 is adjusted in a sliding mode, one end of the fixing block is located on one side of a feed inlet flange, at the moment, the rotation of the output shaft of the driving motor 25 can drive the driving gear 26 to rotate, the large gear 27 is respectively meshed with the transmission gear 18 and the driving gear 26, the transmission gear 18 is fixedly sleeved on the outer side of the threaded cylinder 16, the rotation of the driving gear 26 can drive the threaded cylinder 16 to rotate, the threaded cylinder 16 is in threaded connection with the screw 17, one end of the screw 17 is fixed with the supporting frame 19, the rotation of the threaded cylinder 16 drives the supporting frame 19 to move horizontally, the fixing block 20 is abutted to the flange on the feed inlet, and connection.
A stretching rod 21 is fixed at one end of the fixed block 20 far away from the vent hole 15, so that the fixed block 20 can be conveniently adjusted in a sliding manner.
One side that screw rod 17 was kept away from to carriage 19 is fixed with spacing subassembly 22, spacing subassembly 22 includes bolt 23 and thread bush 24, one side that screw rod 17 was kept away from to thread bush 24 one end and carriage 19 is fixed, and communicates with the inside of carriage 19, bolt 23 and 24 threaded connection of thread bush can make its port department and fixed block 20 contact through the bolt 23 of screwing to play spacing effect to it, prevented that the gliding phenomenon appears after 20 position control of fixed block.
Fixed subassembly 13 is equipped with threely, and three fixed subassembly 13 equiangular distribution makes connecting device 4 more even to the effort of feed inlet flange in the outside of conical joint 11.
The connecting device 4 further comprises a limiting frame 5, wherein the limiting frame 5 is fixed with one end, far away from the supporting frame 19, of each screw 17, the screws 17 are prevented from rotating, and the movement of the supporting frame 19 is more stable.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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. Foreign matter detecting system before maleic anhydride preparation system operation, including detection case (1) and backup pad (2), its characterized in that: the detection box (1) is fixed at the top of the supporting plate (2), the two sides of the detection box (1) are respectively provided with a stamping device (3) and a connecting device (4), the output end of the stamping device (3) is communicated with the detection box (1), the detection box (1) is communicated with the reactor through the connecting device (4), the outer side of the detection box (1) is fixed with an alarm device (6), the inner side of the detection box (1) is fixed with an air pressure sensor, the air pressure sensor and the connecting device (4) are respectively electrically connected with the alarm device (6), the connecting device (4) comprises an air duct (9), a fixing plate (10), a conical connector (11), an annular mounting plate (12), a fixing component (13) and a driving component (14), one end of the air duct (9) is fixed with the detection box (1) and is communicated with the interior of the box body, the other end of air duct (9) is fixed with one side of the big terminal surface of toper connector (11), the middle part of toper connector (11) is equipped with air vent (15), air vent (15) and air duct (9) intercommunication, be fixed with the leather sheath on the conical surface of toper connector (11), the bottom of air duct (9) is fixed with backup pad (2) through fixed plate (10), annular mounting panel (12) are fixed to be cup jointed in the outside of air duct (9), and one side of annular mounting panel (12) is fixed with toper connector (11), fixed subassembly (13) and drive assembly (14) are all fixed on annular mounting panel (12), and the output of drive assembly (14) is connected with fixed subassembly (13) transmission, fixed subassembly (13) include screw thread section of thick bamboo (16), screw rod (17), drive gear (18), carriage (19) and fixed block (20), a screw thread section of thick bamboo (16) runs through the edge of annular mounting panel (12), and rotates with annular mounting panel (12) through the bearing and be connected, screw rod (17) and screw thread section of thick bamboo (16) threaded connection, and the one end and the carriage (19) of screw rod (17) are fixed, fixed block (20) and the inner wall cooperation of carriage, and with carriage (19) sliding connection, drive gear (18) are fixed to be cup jointed in the outside of a screw thread section of thick bamboo (16), the output and the drive gear (18) transmission of drive assembly (14) are connected.
2. The maleic anhydride production system as claimed in claim 1, wherein the foreign matter detection system before operation is characterized in that: the stamping device (3) comprises a high-pressure gas storage tank (7) and a gas transmission pipe (8), one end of the gas transmission pipe (8) is communicated with the output end of the high-pressure gas storage tank (7), and the other end of the gas transmission pipe is communicated with the detection box (1).
3. The maleic anhydride production system as claimed in claim 1, wherein the foreign matter detection system before operation is characterized in that: the alarm device (6) comprises an audible and visual alarm and a controller, the air pressure sensor is electrically connected with the controller, and the controller is electrically connected with the audible and visual alarm.
4. The maleic anhydride production system as claimed in claim 1, wherein the foreign matter detection system before operation is characterized in that: and a stretching rod (21) is fixed at one end of the fixed block (20) far away from the vent hole (15).
5. The maleic anhydride production system as claimed in claim 4, wherein the foreign matter detection system before operation is characterized in that: one side that screw rod (17) were kept away from in carriage (19) is fixed with spacing subassembly (22), spacing subassembly (22) include bolt (23) and thread bush (24), one side that screw rod (17) were kept away from in the one end and carriage (19) of thread bush (24) is fixed, and communicates with the inside of carriage (19), bolt (23) and thread bush (24) threaded connection.
6. The maleic anhydride production system as claimed in claim 5, wherein the foreign matter detection system before operation is characterized in that: drive assembly (14) include driving motor (25), drive gear (26), gear wheel (27), mounting bracket (28) and support a section of thick bamboo (29), gear wheel (27) are fixed cup joints in the outside of supporting a section of thick bamboo (29), it is connected with annular mounting panel (12) rotation through the bearing to support a section of thick bamboo (29), gear wheel (27) are connected with drive gear (18) and drive gear (26) meshing respectively, drive gear (26) are fixed with the output shaft of driving motor (25), driving motor (25) are fixed with annular mounting panel (12) through mounting bracket (28).
7. The maleic anhydride production system as claimed in claim 6, wherein the foreign matter detection system before operation is characterized in that: the number of the fixing assemblies (13) is three, and the three fixing assemblies (13) are distributed on the outer side of the conical connector (11) at equal angles.
8. The maleic anhydride production system as claimed in claim 7, wherein the foreign matter detection system before operation is characterized in that: the connecting device (4) further comprises a limiting frame (5), and the limiting frame (5) is fixed with one end, far away from the supporting frame (19), of each of the three screw rods (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421851.6A CN110018526B (en) | 2019-05-21 | 2019-05-21 | Foreign matter detection system before maleic anhydride preparation system operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910421851.6A CN110018526B (en) | 2019-05-21 | 2019-05-21 | Foreign matter detection system before maleic anhydride preparation system operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110018526A CN110018526A (en) | 2019-07-16 |
| CN110018526B true CN110018526B (en) | 2020-07-03 |
Family
ID=67194058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910421851.6A Active CN110018526B (en) | 2019-05-21 | 2019-05-21 | Foreign matter detection system before maleic anhydride preparation system operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110018526B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5391218A (en) * | 1993-09-08 | 1995-02-21 | Donaldson Company, Inc. | Diagnostic and control system for dust collector |
| CN201293163Y (en) * | 2008-10-17 | 2009-08-19 | 海尔集团公司 | Reducer pipe connecting piece for screwed connection |
| CN201964067U (en) * | 2011-03-17 | 2011-09-07 | 常州市常武欣摄石化配件有限公司 | Steel flange |
| CN204896374U (en) * | 2015-07-28 | 2015-12-23 | 安徽奥生资源利用科技有限公司 | Arrange sediment device with air bubble |
| CN108468887B (en) * | 2018-06-28 | 2021-03-12 | 株洲时代新材料科技股份有限公司 | Reducing pipeline connecting device and method |
| CN109029262B (en) * | 2018-09-27 | 2024-04-30 | 宁波浙铁江宁化工有限公司 | Foreign matter detection system before maleic anhydride preparation system operation |
-
2019
- 2019-05-21 CN CN201910421851.6A patent/CN110018526B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN110018526A (en) | 2019-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2722267C (en) | Methanol carbonylation system having absorber with multiple solvent options | |
| Magalhaes Jr et al. | Techno-economic analysis of downstream processes in itaconic acid production from fermentation broth | |
| CN110018526B (en) | Foreign matter detection system before maleic anhydride preparation system operation | |
| Wang et al. | Hydrolysis of cellulose into reducing sugar via hot-compressed ethanol/water mixture | |
| CN111377811A (en) | Continuous preparation method of sorbic acid | |
| TW201538477A (en) | A process for preparing succinate ester | |
| CN104854222A (en) | Biofuels production from bio-derived carboxylic-acid esters | |
| CN117816078A (en) | High-purity acetate production system | |
| CN216513579U (en) | Fermenting installation is used in microbial manure production and processing | |
| CN112619589A (en) | Combined device for preparing mixed fatty acid methyl ester | |
| CN101255104B (en) | Method and device for preparing carboxylic acids by hydrolysis of polybasic carboxylic acid ester | |
| CN105833906B (en) | A kind of efficient azochlorosulfonate acid resin catalyst method of modifying | |
| CN212894539U (en) | Reaction system for producing high molecular weight polyester by continuous melt polycondensation | |
| Pan et al. | Hydrothermal production of formic and acetic acids from syringol | |
| CN109265366B (en) | Chlorothalonil lattice transformation device and method | |
| CN111848386B (en) | System and method for processing a variable acetyl stream | |
| CN221334129U (en) | Waste heat utilization equipment for thermal alkaline hydrolysis flash evaporation | |
| CN217450157U (en) | Alga fertilizer preparation reaction kettle capable of recycling heat energy | |
| CN115382229B (en) | Evaporation crystallization device | |
| Arpa et al. | ECONOMICAL STUDY OF BIO-BASED POLYBUTYLENE SUCCINATE PRODUCTION FROM OIL PALM BIOMASS | |
| CN221564261U (en) | Microorganism fermentation raw material storage equipment | |
| CN204712299U (en) | A kind of granulating mechanism of polyamide production system | |
| CN104877129B (en) | A kind of polyamide production system | |
| CN206103920U (en) | Polyhydric alcohol apparatus for producing | |
| CN221460211U (en) | Cooling device for glass tube forming |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240814 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Country or region after: China Patentee after: Ningbo Dafeng Jiangning New Material Technology Co.,Ltd. Patentee after: Sinopec Ningbo Zhenhai Refining and Chemical Co.,Ltd. Address before: 315207 no.198 Haixiang Road, Ningbo Petrochemical Economic and Technological Development Zone, Ningbo City, Zhejiang Province Patentee before: NINGBO ZHETIE JIANGNING CHEMICAL Co.,Ltd. Country or region before: China |