CN113970912A - Complete equipment matched with synthetic ammonia device - Google Patents
Complete equipment matched with synthetic ammonia device Download PDFInfo
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- CN113970912A CN113970912A CN202111280750.5A CN202111280750A CN113970912A CN 113970912 A CN113970912 A CN 113970912A CN 202111280750 A CN202111280750 A CN 202111280750A CN 113970912 A CN113970912 A CN 113970912A
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 123
- 239000000428 dust Substances 0.000 claims abstract description 64
- 239000000843 powder Substances 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 17
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 17
- 238000002309 gasification Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000002817 coal dust Substances 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 7
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 34
- 239000004744 fabric Substances 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 11
- 230000008602 contraction Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/04—Preparation of ammonia by synthesis in the gas phase
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/33—Director till display
- G05B2219/33273—DCS distributed, decentralised controlsystem, multiprocessor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of automatic control, in particular to complete equipment and a control system matched with a synthetic ammonia device, which realize multi-system communication and eliminate the adverse effect that a PLC (programmable logic controller) system of the complete equipment on site cannot be remotely monitored; the method comprises the following steps: a DCS control system: the system is used for realizing multi-system communication and remotely monitoring and controlling the PLC control systems of a plurality of devices on site; coal grinding PLC control system: the coal pulverizer is used for controlling the coal pulverizer to grind raw coal, manufacturing coal powder and connecting the coal powder into a DCS (distributed control system); dust removal PLC control system: the device is used for controlling the bag-type dust collector to absorb coal dust generated during raw coal grinding and is connected into a DCS control system; gas making PLC control system: the system is used for controlling the gasification furnace to refine the manufactured coal dust to synthesize the gas required by ammonia, and the gas is connected into a DCS control system; gas making PLC control system: the system is used for controlling the synthesis tower to prepare synthetic ammonia by using gas refined from the gasification furnace, and is connected into a DCS control system.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to complete equipment matched with a synthetic ammonia device.
Background
With the continuous development of electronics, software and automation technology and the appearance of new application scenes in the chemical production process, a chemical automatic control system manufacturer further develops a new system with more complete functions, higher software stability and more convenient and fast operation on the basis of the original system and has upward compatibility functions, wherein a DCS control system is used for preparing synthetic ammonia, partial software defects are exposed, the system stability is reduced, the fault rate of a server, network equipment, an operating computer and the like is gradually increased, certain potential safety hazards are brought to the production system, the production system is influenced by the logout of a Windows Microsoft 7 operating system and the shutdown of a DELL reinforcing plate 00 workstation, the number of available operating computers is gradually reduced, the production and use requirements are difficult to meet, in addition, complete equipment matched with a synthetic ammonia device, such as a coal grinding system, a dust removal system and the like, are controlled by a PLC system and are dispersed, the real-time monitoring equipment without an upper computer brings many adverse factors to safe and stable production, so a new synthetic ammonia device and a control system are needed to solve the problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides complete equipment matched with a synthetic ammonia device and a control system, wherein the complete equipment and the control system realize multi-system communication and eliminate the adverse effect that a field complete equipment PLC system cannot be remotely monitored.
The invention relates to a control system matched with a synthetic ammonia device, which comprises:
a DCS control system: the system is used for realizing multi-system communication and remotely monitoring and controlling the PLC control systems of a plurality of devices on site;
coal grinding PLC control system: the coal pulverizer is used for controlling the coal pulverizer to grind raw coal, manufacturing coal powder and connecting the coal powder into a DCS (distributed control system);
dust removal PLC control system: the device is used for controlling the bag-type dust collector to absorb coal dust generated during raw coal grinding and is connected into a DCS control system;
gas making PLC control system: the system is used for controlling the gasification furnace to refine the manufactured coal dust to synthesize the gas required by ammonia, and the gas is connected into a DCS control system;
gas making PLC control system: the system is used for controlling the synthesis tower to prepare synthetic ammonia by using gas extracted from the gasification furnace and connecting the synthetic ammonia to a DCS (distributed control system);
the standby control system comprises: the system is converted with a DCS control system, and can also remotely monitor and control the PLC control systems of a plurality of devices on site.
A complete set of equipment matched with a synthetic ammonia device is characterized by comprising a coal mill, a cloth bag dust remover, a gasification furnace and a synthesis tower, wherein coal powder manufactured by the coal mill is conveyed to the gasification furnace, gas prepared by the gasification furnace is conveyed to the synthesis tower, and synthetic ammonia is prepared by the synthesis tower, the coal mill comprises a coal mill main body, a feeding hopper, a fixing frame, a first motor, two groups of grinding rollers, two groups of gears, a storage box, a second motor, a first rotating shaft, a first spiral blade, a first bevel gear, a second rotating shaft, two groups of first cams, a material sieving plate, two groups of belt pulleys, a belt, a third rotating shaft and a second spiral blade, a cavity is arranged in the coal mill main body, a discharging pipe is arranged at the bottom end of the coal mill main body, the feeding hopper is fixed in the middle of the top end of the coal mill main body, the first motor is fixed on the front side of the upper part of the right end of the coal mill main body through the fixing frame, the output end of the first motor is connected with a group of grinding rollers, the two groups of grinding rollers are respectively rotatably connected with the front side and the rear side of the upper part of the coal mill main body, the two groups of gears are respectively fixed on the right sides of the two groups of grinding rollers, the two groups of gears are mutually meshed, the storage box is fixed at the left end of the coal mill main body, an opening is correspondingly arranged at the bottom of the right end of the storage box and the bottom of the left end of the coal mill main body, a connecting pipe is arranged at the upper part of the right end of the storage box and is communicated with the upper part of the left end of the coal mill main body, the second motor is fixed at the top end of the storage box, the output end of the second motor is connected with the first rotating shaft, the first rotating shaft is rotatably connected with the storage box, the first spiral blade is fixed on the first rotating shaft and is positioned in the storage box, the first bevel gear is fixed at the bottom end of the first rotating shaft, the first bevel gear is positioned below the storage box and is in meshed transmission connection with the second bevel gear, and the second bevel gear is fixed at the left end of the second rotating shaft, the second rotating shaft is rotatably connected with the bottom of the coal mill main body, two groups of first cams are symmetrically fixed on the left side and the right side of the second rotating shaft respectively and are positioned in a cavity of the coal mill main body, the first cams are in rolling contact with the bottom end of the screening plate, the screening plate is slidably clamped with the left end and the right end of the cavity of the coal mill main body, two groups of belt pulleys are fixed on the right end of the second rotating shaft and the right end of the third rotating shaft respectively, the two groups of belt pulleys are connected through belt transmission, the third rotating shaft is rotatably connected with the coal mill main body, the third rotating shaft is positioned between the grinding roller and the screening plate and corresponds to an opening at the bottom of the right end of the storage box, the second spiral blade is fixed on the third rotating shaft, and the cloth bag dust remover is fixed at the top end of the coal mill main body and is communicated with the feeding hopper; the raw coal is poured into a coal grinding machine main body through a feeding hopper, a first motor is started, the first motor drives a group of grinding rollers and a group of gears to rotate, the two groups of gears are in meshed transmission connection, the two groups of grinding rollers rotate simultaneously, the raw coal is ground through the matching use of the two groups of grinding rollers, a second motor is started simultaneously, the second motor drives a first rotating shaft to rotate, the first rotating shaft drives a first spiral blade and a first bevel gear to rotate, the first bevel gear is in meshed transmission connection with a second bevel gear, so that the second rotating shaft drives a first cam to rotate, a screening plate is driven by the first cam to vibrate up and down, ground coal dust is screened, the second rotating shaft drives belt pulleys to rotate, the two groups of belt pulleys are in belt transmission connection, the third rotating shaft drives a second spiral blade to rotate, unqualified coal dust is conveyed into a storage box through the matching use of the third rotating shaft and the second spiral blade, and through the cooperation of first axis of rotation and first helical blade, carry the coal pulverizer main part with the buggy again in to grind through the grinding roller, repeat above-mentioned action, until with raw coal all grind into the buggy can, make the raw coal can be repeatedly ground, until preparing into standard buggy, avoided the waste of raw coal, improved the result of use of device.
Preferably, the cloth bag dust remover comprises a plurality of groups of T-shaped fixed blocks, a dust collection box, a dust collector, a third motor, a second cam, a moving block, a plurality of groups of contraction rods, a plurality of groups of springs, a plurality of groups of fixed rods, a plurality of groups of cloth bags, a plurality of groups of branch pipes and a dust collection pipe, wherein the plurality of groups of T-shaped fixed blocks are respectively and uniformly and symmetrically fixed at the bottoms of the left and right ends of the dust collection box and are all fixed at the right side of the top end of the coal mill main body, the dust collector is fixed at the right end of the dust collection box, the third motor is fixed at the right side of the bottom end of the dust collection box, the output end of the third motor is connected with the second cam, the second cam is in rolling contact with the right end of the moving block, the moving block is slidably clamped with the inner side wall of the bottom end of the dust collection box, the plurality of groups of contraction rods are uniformly fixed at the left end of the moving block, the springs are fixedly sleeved on the contraction rods, the other end of the contraction rods are connected with the bottom of the inner side wall of the left end of the dust collection box, and the plurality of fixing rods are uniformly fixed at the top end of the moving block, the bottoms of the multiple groups of cloth bags are respectively bound and connected with the multiple groups of fixed rods through binding belts, the tops of the multiple groups of cloth bags are respectively bound and connected with the multiple groups of branch pipes through binding belts, the multiple groups of branch pipes are uniformly fixed at the top end of the dust collection box and are communicated with the dust collection pipe, and the left end of the dust collection pipe is communicated with the right end of the feeding hopper; the dust catcher is started, the inside of the dust catcher box is pumped into negative pressure through the dust catcher, the pulverized coal drifting to the feeding hopper is conveyed to the branch pipe through the dust suction pipe under the action of the atmosphere, the pulverized coal is adsorbed through the cloth bag, meanwhile, the second cam is driven to rotate through the third motor, the second cam is used under the cooperation of the contraction rod and the spring, the movable block is driven to move left and right, the bottom left and right shaking of the cloth bag is driven by the fixing rod, the bottom of the cloth bag is deposited with the pulverized coal, the atmospheric pollution caused by the diffusion of the pulverized coal into the air is avoided, the service cycle of the cloth bag to the pulverized coal adsorption is increased simultaneously, and the using effect of the device is further improved.
Preferably, the coal mill further comprises a plurality of groups of supporting legs, a plurality of groups of cushion blocks and a plurality of groups of foundation bolts, wherein the plurality of groups of supporting legs are uniformly fixed at the bottom end of the coal mill main body, the cushion blocks are fixed at the bottom ends of the supporting legs, and the supporting legs are connected with the ground through the foundation bolts; through setting up supporting leg, cushion and rag bolt, take place skew or slope when avoiding the device to use, improve the stability in use of device.
Preferably, the coal mill further comprises a plurality of groups of reinforcing plates, wherein the plurality of groups of reinforcing plates are respectively and uniformly fixed at the left end and the right end of the plurality of groups of T-shaped fixing blocks and are connected with the right side of the top end of the coal mill main body; through setting up the reinforcing plate, strengthen the intensity that T type fixed block and coal pulverizer main part are connected, improve the structural stability of device.
Preferably, the material storage box further comprises a sealing ring, and the sealing ring is fixed at the bottom of the connecting position of the first rotating shaft and the material storage box; through setting up the sealing washer, avoid fine coal to leak from the bottom of first axis of rotation and storage case junction, improve the leakproofness of device.
Preferably, the coal mill further comprises a right-angle fixed block, wherein the right-angle fixed block is fixed in the middle of the right end of the coal mill main body and is rotatably connected with a third rotating shaft; through setting up the right angle fixed block, stability when guaranteeing the third axis of rotation, further improve the structural stability of device.
Preferably, the first motor, the second motor and the third motor are all noise reduction motors; through setting up amortization motor, noise pollution reduces, further improves the result of use of device.
Compared with the prior art, the invention has the beneficial effects that:
1. the software runs more stably: when the DCS control system is abnormal, the operation is automatically switched to the standby control system, the production operation cannot be influenced, the DCS control system is added with a data exchange operation implementation diagnosis function, and the standby control system is immediately switched after the data exchange interruption occurs, so that the hidden danger that the DCS control system cannot be automatically switched accidentally is eliminated.
2. Multi-system communication is realized, and the adverse effect that the field complete equipment PLC system cannot be remotely monitored is eliminated.
3. A dispatching command system of the whole plant is constructed, so that a dispatcher can conveniently and effectively master the production condition of the whole plant in time, the production of the whole plant can be adjusted in time, and accidents are avoided.
Drawings
FIG. 1 is a system control flow diagram of the present invention;
FIG. 2 is a schematic elevational view and partially cross-sectional structural illustration of the coal pulverizer and bag house dust collector of the present invention;
FIG. 3 is a schematic view of a partial isometric configuration of the present invention;
FIG. 4 is an enlarged schematic view of the invention at A in FIG. 2;
in the drawings, the reference numbers: 1. a coal mill main body; 2. a feeding hopper; 3. a fixed mount; 4. a first motor; 5. a grinding roller; 6. a gear; 7. a material storage box; 8. a second motor; 9. a first rotating shaft; 10. a first helical blade; 11. a first bevel gear; 12. a second bevel gear; 13. a second rotating shaft; 14. a first cam; 15. a material sieving plate; 16. a belt pulley; 17. a belt; 18. a third rotating shaft; 19. a second helical blade; 20. a T-shaped fixed block; 21. a dust collection box; 22. a dust collector; 23. a third motor; 24. a second cam; 25. a moving block; 26. a retracting lever; 27. a spring; 28. fixing the rod; 29. a cloth bag; 30. a branch pipe; 31. a dust collection pipe; 32. supporting legs; 33. cushion blocks; 34. anchor bolts; 35. a reinforcing plate; 36. a seal ring; 37. and a right-angle fixing block.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Example 1
The coal mill comprises a coal mill main body 1, a feeding hopper 2, a fixing frame 3, a first motor 4, two groups of grinding rollers 5, two groups of gears 6, a storage box 7, a second motor 8, a first rotating shaft 9, a first spiral blade 10, a first bevel gear 11, a second bevel gear 12, a second rotating shaft 13, two groups of first cams 14, a screening plate 15, two groups of belt pulleys 16, a belt 17, a third rotating shaft 18 and a second spiral blade 19, wherein a cavity is arranged in the coal mill main body 1, a discharging pipe is arranged at the bottom end of the coal mill main body, the feeding hopper 2 is fixed in the middle of the top end of the coal mill main body 1, the first motor 4 is fixed on the front side of the upper part of the right end of the coal mill main body 1 through the fixing frame 3, the output end of the first motor 4 is connected with one group of grinding rollers 5, the two groups of grinding rollers 5 are respectively rotatably connected with the front side and the rear side of the upper part of the coal mill main body 1, and the two groups of gears 6 are respectively fixed on the right sides of the two groups of the grinding rollers 5, the two groups of gears 6 are mutually meshed, the storage box 7 is fixed at the left end of the coal mill main body 1, the bottom of the right end of the storage box 7 is correspondingly provided with an opening with the bottom of the left end of the coal mill main body 1, the upper part of the right end of the storage box 7 is provided with a connecting pipe, the connecting pipe is communicated with the upper part of the left end of the coal mill main body 1, the second motor 8 is fixed at the top end of the storage box 7, the output end of the second motor 8 is connected with a first rotating shaft 9, the first rotating shaft 9 is rotatably connected with the storage box 7, a first spiral blade 10 is fixed on the first rotating shaft 9 and is positioned in the storage box 7, a first bevel gear 11 is fixed at the bottom end of the first rotating shaft 9, the first bevel gear 11 is positioned below the storage box 7, the first bevel gear 11 is in meshing transmission connection with a second bevel gear 12, the second bevel gear 12 is fixed at the left end of the second rotating shaft 13, the second rotating shaft 13 is rotatably connected with the bottom of the coal mill main body 1, two groups of first cams 14 are symmetrically fixed on the left side and the right side of the second rotating shaft 13 and located in the cavity of the coal mill main body 1 respectively, the first cams 14 are in rolling contact with the bottom end of the screening plate 15, the screening plate 15 is in sliding clamping with the left end and the right end of the cavity of the coal mill main body 1, two groups of belt pulleys 16 are fixed on the right end of the second rotating shaft 13 and the right end of the third rotating shaft 18 respectively, the two groups of belt pulleys 16 are in transmission connection through a belt 17, the third rotating shaft 18 is in rotating connection with the coal mill main body 1, the third rotating shaft 18 is located between the grinding roller 5 and the screening plate 15, the third rotating shaft 18 corresponds to an opening at the bottom of the right end of the storage box 7, the second spiral blade 19 is fixed on the third rotating shaft 18, and the cloth bag dust remover comprises a plurality of groups of T-shaped fixing blocks 20, a dust suction box 21, a dust collector 22, a third motor 23, a second cam 24, a moving block 25, A plurality of groups of contraction rods 26, a plurality of groups of springs 27, a plurality of groups of fixing rods 28, a plurality of groups of cloth bags 29, a plurality of groups of branch pipes 30 and a dust collection pipe 31, wherein a plurality of groups of T-shaped fixing blocks 20 are respectively and uniformly and symmetrically fixed at the bottoms of the left and right ends of a dust collection box 21 and are all fixed at the right side of the top end of the coal mill main body 1, a dust collector 22 is fixed at the right end of the dust collection box 21, a third motor 23 is fixed at the right side of the bottom end of the dust collection box 21, the output end of the third motor 23 is connected with a second cam 24, the second cam 24 is in rolling contact with the right end of a moving block 25, the moving block 25 is in sliding clamping with the inner side wall at the bottom end of the dust collection box 21, the plurality of groups of contraction rods 26 are uniformly fixed at the left end of the contraction rods 26, the other end of the contraction rods 26 is connected with the bottom of the inner side wall at the left end of the dust collection box 21, the plurality of fixing rods 28 are uniformly fixed at the top end of the moving block 25, the plurality of the cloth bags 29 are respectively bound with the fixing rods 28, the tops of the multiple groups of cloth bags 29 are respectively bound and connected with the multiple groups of branch pipes 30 through binding belts, the multiple groups of branch pipes 30 are uniformly fixed at the top end of the dust collection box 21 and are communicated with a dust collection pipe 31, and the left end of the dust collection pipe 31 is communicated with the right end of the feeding hopper 2; raw coal is poured into a coal mill main body 1 through a feeding hopper 2, a first motor 4 is started, the first motor 4 drives a group of grinding rollers 5 and a group of gears 6 to rotate, the two groups of gears 6 are in meshed transmission connection, the two groups of grinding rollers 5 rotate simultaneously, raw coal is ground through the matching use of the two groups of grinding rollers 5, a second motor 8 is started simultaneously, the second motor 8 drives a first rotating shaft 9 to rotate, the first rotating shaft 9 drives a first spiral blade 10 and a first bevel gear 11 to rotate, the first bevel gear 11 is in meshed transmission connection with a second bevel gear 12, so that a second rotating shaft 13 drives a first cam 14 to rotate, a screening plate 15 is driven by the first cam 14 to vibrate up and down, ground coal powder is screened, the second rotating shaft 13 drives a belt pulley 16 to rotate, the two groups of belt pulleys 16 are in transmission connection through a belt 17, a third rotating shaft 18 drives a second spiral blade 19 to rotate, the unqualified coal powder is conveyed into the storage box 7 by the matching of the third rotating shaft 18 and the second helical blade 19, the coal powder is conveyed into the coal mill main body 1 again by the matching of the first rotating shaft 9 and the first helical blade 10, the coal powder is ground by the grinding roller 5, the actions are repeated until the raw coal is completely ground into the coal powder, the raw coal can be repeatedly ground until standard coal powder is prepared, the waste of the raw coal is avoided, the use effect of the device is improved, the dust collector 22 is started, the dust suction box 21 is pumped into negative pressure by the dust collector 22, the coal powder scattered to the feeding hopper 2 is conveyed to the branch pipe 30 by the dust suction pipe 31 under the action of atmosphere, the coal powder is adsorbed by the cloth bag 29, the second cam 24 is driven to rotate by the third motor 23, the second cam 24 is used by the matching of the rod 26 and the spring 27, the moving block 25 is driven to move left and right, so that the fixing rod 28 drives the bottom of the cloth bag 29 to shake left and right, the pulverized coal adsorbed by the cloth bag 29 is deposited at the bottom, the atmospheric pollution caused by the fact that the pulverized coal is diffused into the air is avoided, meanwhile, the service cycle of the cloth bag 29 for adsorbing the pulverized coal is prolonged, and the using effect of the device is further improved.
As shown in fig. 1 to 4, the complete equipment and the control system thereof for the ammonia synthesis device of the invention, when the device works, the DCS control system is used for carrying out master control on the PLC control systems of all the devices, the PLC control systems of all the devices are used for controlling the operation of all the devices, namely, the coal grinding PLC control system controls the coal grinding machine to operate to prepare the coal powder, and the dust removal PLC control system controls the bag dust remover to adsorb the coal powder, thereby avoiding the coal powder from diffusing into the air, improving the environmental usability of the device, and the pulverized coal is conveyed into the gasification furnace, the gasification furnace is controlled by a gas-making PLC control system to prepare the gas required by the synthetic ammonia, and the gas is conveyed into the synthesis tower, the synthesis tower is controlled by the PLC control system to manufacture the synthetic ammonia, so that multi-system communication is realized, and the adverse effect that the field complete equipment PLC system cannot be remotely monitored is eliminated.
The installation mode, the connection mode or the arrangement mode of the complete equipment matched with the synthetic ammonia device are common mechanical modes, and the complete equipment can be implemented as long as the beneficial effects of the complete equipment can be achieved.
All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A control system matched with an ammonia synthesis device is characterized by comprising:
a DCS control system: the system is used for realizing multi-system communication and remotely monitoring and controlling the PLC control systems of a plurality of devices on site;
coal grinding PLC control system: the coal pulverizer is used for controlling the coal pulverizer to grind raw coal, manufacturing coal powder and connecting the coal powder into a DCS (distributed control system);
dust removal PLC control system: the device is used for controlling the bag-type dust collector to absorb coal dust generated during raw coal grinding and is connected into a DCS control system;
gas making PLC control system: the system is used for controlling the gasification furnace to refine the manufactured coal dust to synthesize the gas required by ammonia, and the gas is connected into a DCS control system;
gas making PLC control system: the system is used for controlling the synthesis tower to prepare synthetic ammonia by using gas extracted from the gasification furnace and connecting the synthetic ammonia to a DCS (distributed control system);
the standby control system comprises: the system is converted with a DCS control system, and can also remotely monitor and control the PLC control systems of a plurality of devices on site.
2. A complete set of equipment matched with a synthetic ammonia device is characterized by comprising a coal mill, a cloth bag dust remover, a gasification furnace and a synthesis tower, wherein the coal powder manufactured by the coal mill is conveyed to the gasification furnace, the gas prepared by the gasification furnace is conveyed to the synthesis tower, and the synthetic ammonia is prepared by the synthesis tower, the coal mill comprises a coal mill main body (1), a feeding hopper (2), a fixing frame (3), a first motor (4), two groups of grinding rollers (5), two groups of gears (6), a storage box (7), a second motor (8), a first rotating shaft (9), a first helical blade (10), a first bevel gear (11), a second bevel gear (12), a second rotating shaft (13), two groups of first cams (14), a screening plate (15), two groups of belt pulleys (16), a belt (17), a third rotating shaft (18) and a second helical blade (19), a cavity is arranged inside the coal mill main body (1), the bottom end is provided with a discharge pipe, the feeding hopper (2) is fixed at the middle part of the top end of the coal mill main body (1), the first motor (4) is fixed at the front side of the upper part of the right end of the coal mill main body (1) through a fixing frame (3), the output end of the first motor (4) is connected with a group of grinding rollers (5), the two groups of grinding rollers (5) are respectively rotatably connected with the front side and the rear side of the upper part of the coal mill main body (1), two groups of gears (6) are respectively fixed at the right sides of the two groups of grinding rollers (5), the two groups of gears (6) are mutually meshed, the storage box (7) is fixed at the left end of the coal mill main body (1), the bottom of the right end of the storage box (7) is correspondingly provided with an opening with the bottom of the left end of the coal mill main body (1), the upper part of the right end of the storage box (7) is provided with a connecting pipe, the connecting pipe is communicated with the upper part of the left end of the coal mill main body (1), and the second motor (8) is fixed at the top end of the storage box (7), the output end of the second motor (8) is connected with a first rotating shaft (9), the first rotating shaft (9) is rotationally connected with a storage box (7), a first spiral blade (10) is fixed on the first rotating shaft (9) and positioned in the storage box (7), a first bevel gear (11) is fixed at the bottom end of the first rotating shaft (9), the first bevel gear (11) is positioned below the storage box (7), the first bevel gear (11) is in meshing transmission connection with a second bevel gear (12), the second bevel gear (12) is fixed at the left end of the second rotating shaft (13), the second rotating shaft (13) is rotationally connected with the bottom of the coal mill main body (1), two groups of first cams (14) are symmetrically fixed at the left side and the right side of the second rotating shaft (13) respectively and positioned in a cavity of the coal mill main body (1), and the first cams (14) are in rolling contact with the bottom end of a screening plate (15), both ends slip about sieve flitch (15) and coal pulverizer main part (1) cavity clamp, the right-hand member at the right-hand member of second axis of rotation (13) and third axis of rotation (18) is fixed respectively in two sets of belt pulleys (16), and connect through belt (17) transmission between two sets of belt pulleys (16), third axis of rotation (18) are rotated with coal pulverizer main part (1) and are connected, third axis of rotation (18) are located between grinding roller (5) and sieve flitch (15), and third axis of rotation (18) are corresponding with the opening of storage tank (7) right-hand member bottom, second helical blade (19) are fixed on third axis of rotation (18), and the sack dust shaker fix the top in coal pulverizer main part (1) to feed hopper (2) intercommunication.
3. The complete set of equipment matched with a synthetic ammonia device according to claim 2, wherein the bag dust collector comprises a plurality of groups of T-shaped fixed blocks (20), a dust collection box (21), a dust collector (22), a third motor (23), a second cam (24), a moving block (25), a plurality of groups of contraction rods (26), a plurality of groups of springs (27), a plurality of groups of fixed rods (28), a plurality of groups of bag bodies (29), a plurality of groups of branch pipes (30) and dust collection pipes (31), the plurality of groups of T-shaped fixed blocks (20) are respectively and symmetrically fixed at the bottoms of the left and right ends of the dust collection box (21) and are respectively fixed at the right side of the top end of the coal mill main body (1), the dust collector (22) is fixed at the right end of the dust collection box (21), the third motor (23) is fixed at the right side of the bottom end of the dust collection box (21), the output end of the third motor (23) is connected with the second cam (24), and the second cam (24) is in rolling contact with the right end of the moving block (25), the bottom inside wall of movable block (25) and dust collection box (21) slides and clamps, and multiunit shrink pole (26) are evenly fixed at the left end of movable block (25), the fixed suit of spring (27) is on shrink pole (26), the other end of shrink pole (26) is connected with the bottom of dust collection box (21) left end inside wall, and multiunit dead lever (28) are evenly fixed on the top of movable block (25), the bottom of multiunit sack (29) is binded with multiunit dead lever (28) respectively and is connected, the top of multiunit sack (29) is binded with multiunit branch pipe (30) respectively through the ribbon and is connected, the top in dust collection box (21) is evenly fixed to multiunit branch pipe (30), and all communicate with dust absorption pipe (31), the left end of dust absorption pipe (31) communicates with the right-hand member of magazine (2).
4. The complete equipment set for the ammonia synthesis device according to claim 2, further comprising a plurality of sets of supporting legs (32), a plurality of sets of cushion blocks (33) and a plurality of sets of anchor bolts (34), wherein the plurality of sets of supporting legs (32) are uniformly fixed at the bottom end of the coal mill main body (1), the cushion blocks (33) are fixed at the bottom end of the supporting legs (32), and the supporting legs (32) are connected with the ground through the anchor bolts (34).
5. The complete equipment set for the ammonia synthesis device according to claim 2, further comprising a plurality of groups of reinforcing plates (35), wherein the plurality of groups of reinforcing plates (35) are respectively and uniformly fixed at the left and right ends of the plurality of groups of T-shaped fixing blocks (20) and are respectively connected with the right side of the top end of the coal mill main body (1).
6. A plant for the synthesis of ammonia according to claim 2, characterized in that it further comprises a sealing ring (36), the sealing ring (36) being fixed to the bottom of the junction of the first axis of rotation (9) and the storage tank (7).
7. The plant for ammonia synthesis plants according to claim 2, characterized in that it further comprises a right-angle block (37), the right-angle block (37) being fixed to the central right end of the coal mill body (1) and being rotatably connected to the third rotary shaft (18).
8. A plant as claimed in claim 2, characterized in that the first motor (4), the second motor (8) and the third motor (23) are silent motors.
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| CN202111280750.5A CN113970912A (en) | 2021-11-01 | 2021-11-01 | Complete equipment matched with synthetic ammonia device |
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| CN202111280750.5A CN113970912A (en) | 2021-11-01 | 2021-11-01 | Complete equipment matched with synthetic ammonia device |
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