CN114834828B - Scraper conveyor for decoking system - Google Patents
Scraper conveyor for decoking system Download PDFInfo
- Publication number
- CN114834828B CN114834828B CN202110917195.6A CN202110917195A CN114834828B CN 114834828 B CN114834828 B CN 114834828B CN 202110917195 A CN202110917195 A CN 202110917195A CN 114834828 B CN114834828 B CN 114834828B
- Authority
- CN
- China
- Prior art keywords
- scraper
- trough
- coke
- chain
- water
- 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
- 238000005235 decoking Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000000571 coke Substances 0.000 claims abstract description 91
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 description 19
- 238000005520 cutting process Methods 0.000 description 16
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004939 coking Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000002006 petroleum coke Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/44—Belt or chain tensioning arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/04—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels
- B65G19/06—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel
- B65G19/10—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors for moving bulk material in open troughs or channels the impellers being scrapers similar in size and shape to the cross-section of the trough or channel and attached to a pair of belts, ropes or chains
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G19/00—Conveyors comprising an impeller or a series of impellers carried by an endless traction element and arranged to move articles or materials over a supporting surface or underlying material, e.g. endless scraper conveyors
- B65G19/18—Details
- B65G19/20—Traction chains, ropes, or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G23/00—Driving gear for endless conveyors; Belt- or chain-tensioning arrangements
- B65G23/02—Belt- or chain-engaging elements
- B65G23/04—Drums, rollers, or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/02—Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/04—Detection means
- B65G2203/042—Sensors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pusher Or Impeller Conveyors (AREA)
Abstract
The utility model provides a decoking is scraper conveyor for system, which comprises a bod, the head of organism is equipped with the action wheel by drive arrangement drive, the afterbody of organism is equipped with the tailwheel, the cover is equipped with the scraper chain between action wheel and the tailwheel, be equipped with the scraper blade between the scraper chain, the organism has the closure silo that supplies scraper chain and scraper blade to drive burnt water mixture and remove, be equipped with the feed inlet on the apron at silo top, the work piece of scraper chain is by corresponding guide pulley guide setting in the bottom of silo, be equipped with the outlet that is higher than the silo bottom surface on the curb plate of silo, in order to keep the water that can submerge scraper chain work piece and provide buoyancy for coke in the silo when burnt water separation, the return stroke section of scraper chain is by the riding wheel support setting at the top of silo and be located the both sides of feed inlet. The scraper conveyor disclosed by the invention realizes water-coke separation in the process of conveying a coke-water mixture in a closed manner, and is low in conveying energy consumption, convenient to use and high in working efficiency.
Description
Technical Field
The invention belongs to the technical field of delayed coking, and particularly relates to a scraper conveyor for a decoking system.
Background
The delayed coking oil refining process has unique advantages in the aspect of processing heavy and inferior raw materials, and has become the most common residual oil processing process at present, and the solid product petroleum coke of the process is widely applied to the electrolytic aluminum industry in China.
The coking device mostly adopts a traditional coke storage pool mode to carry out petroleum coke treatment: the coke and the coke cutting water in the hydraulic decoking process are discharged into an open-air coke storage pond together through a coke tower by a coke water mixture, solid coke and the coke cutting water are separated in the coke storage pond, when the coke cutting water is discharged, the coke stays in the coke storage pond, then the coke is loaded and discharged by an overhead grab crane, the solid coke and the coke cutting water in the treatment mode are carried out in the coke storage pond, the used coke storage pond needs to occupy a larger area, and the operation efficiency of the whole petroleum coke treatment process is low.
At present, a decoking system is provided with a conveying device for separating cut coke water from solid coke in the process of conveying a coke water mixture, so that the problem of water-coke separation of the coke water mixture by utilizing a coke storage tank is solved, but the existing conveying device is high in energy consumption, and the problems of chain de-linking, inconvenient maintenance and the like are easily caused, so that the existing conveying device is inconvenient to use and low in working efficiency.
Disclosure of Invention
The invention aims to provide a scraper conveyor for a decoking system, which aims to solve the problems of high energy consumption, inconvenient use and low working efficiency of the existing conveying device.
The technical scheme adopted by the invention for achieving the purpose is as follows:
the utility model provides a decoking is scraper conveyor for system, includes the organism, and the head of organism is equipped with the action wheel by drive arrangement driven, and the afterbody of organism is equipped with the tailwheel, and the cover is equipped with the scraper chain between action wheel and the tailwheel, is equipped with the scraper blade between the scraper chain:
The machine body is provided with a closed trough for a scraper chain and a scraper to drive the coke-water mixture to move, and a cover plate at the top of the trough is provided with a feed inlet for feeding the trough;
The working section of the scraper chain is guided and arranged at the bottom of the trough by corresponding guide wheels, and a water outlet higher than the bottom surface of the trough is arranged on a side plate of the trough so as to keep water which can submerge the working section of the scraper chain to provide buoyancy for coke in the trough while separating coke from water;
The return sections of the scraper chains are supported by the riding wheels and arranged at the top of the trough and positioned at two sides of the feed inlet.
Further, the water outlet is 0.4-0.6m away from the bottom of the side plate, and a flow converging port for discharging accumulated water in the trough is arranged near the bottom of the side plate.
Further, a Johnson net for preventing slag particles from being discharged along with the coke cutting water from the trough is arranged in the water outlet.
Further, the side plates are provided with frame bodies corresponding to the Johnson nets, sealing plates which can be detachably arranged on the frame bodies to enclose the frame bodies into a sealing cavity, and the frame bodies are provided with water outlets which are communicated with the cavity bodies and are used for connecting pipelines.
Further, the side plates are also provided with inclined plates which are obliquely arranged and vertical plates which are vertically fixed on the inclined plates, the cross sections of the trough are in a shape of big top and small bottom, and the cover plates are detachably fixed on the vertical plates.
Further, the vertical plate is provided with a supporting plate for mounting the riding wheel, and the supporting plate, the vertical plate and the cover plate enclose an accommodating cavity with an open bottom.
Further, the head of the machine body is higher than the tail of the machine body, a lower guide wheel and an upper guide wheel which are convenient for the turning of the scraper chain are arranged in the trough, the scraper chain in the trough is divided into a horizontal conveying section and an oblique conveying section by the lower guide wheel and the upper guide wheel, and accordingly the scraper chain drives the scraper chain to drive the scraper to drive the coke after the separation of water and coke to enter the oblique conveying section from the horizontal conveying section, and the separation of the coke and accumulated water in the trough is realized.
Further, the side plate is provided with a mounting hole for mounting the lower guide wheel, a mounting plate for fixing the lower guide wheel is arranged in a matched mode with the mounting hole, and the mounting plate is hinged to the side plate to drive the lower guide wheel to roll in and out of the mounting hole.
Further, be equipped with the overspeed device tensioner who prevents the scraper chain and take off the chain on the organism, overspeed device tensioner includes along the movable bearing frame that sets up on the organism of the direction of movement of burnt water mixture, the action wheel rotates and installs in the bearing frame, drive arrangement is including articulating and be used for driving action wheel pivoted hydraulic motor on the organism, is equipped with the pneumatic cylinder that promotes the bearing frame and remove in order to adjust action wheel position messenger scraper chain tensioning on the organism.
Further, the hydraulic motor is fixed on a fixed plate connected with the machine body through a second pin shaft, a guide rail is arranged on the machine body along the moving direction of the coke water mixture, and the bearing seat is slidably mounted on the guide rail.
The invention has the beneficial effects that:
1. The scraper conveyor disclosed by the invention conveys the coke water mixture through the closed trough, discharges the coke cutting water out of the trough to realize water-coke separation in the process of safely and environmentally conveying the coke water mixture, simultaneously provides buoyancy for coke left in the trough to facilitate conveying, reduces conveying energy consumption, and can also improve the upper limit of the amount of coke which can be conveyed when the scraper conveyor is started under the maximum load by buoyancy generated by accumulated water in the trough, so that the conveyor is safer and more reliable when the conveyor is started under the full load condition.
2. According to the scraper conveyor disclosed by the invention, the return stroke section is arranged at the top of the trough, the working section is arranged at the bottom of the trough, so that the return stroke section works above a coke water mixture in the trough, and compared with the arrangement of the return stroke section in the coke water mixture below the working section, the return stroke friction force of a return stroke section chain is reduced, so that the conveying energy consumption is reduced, meanwhile, the installation and maintenance of the return stroke section chain are facilitated, the effective support of the return stroke section chain is provided, the risk of chain disengagement when the return stroke section chain becomes loose is reduced, and the conveying quantity of the coke water mixture of the working chain can be increased.
3. The scraper conveyor is provided with the Johnson net which prevents slag particles from being discharged along with coke cutting water from the trough in the water outlet, the Johnson net is integrally arranged on the side plate, so that abrasion of a scraper to the Johnson net is avoided, the service life of the Johnson net is prolonged, replacement and maintenance of the Johnson net are facilitated, practicability of the scraper conveyor is improved, in addition, the water outlet and the Johnson net are arranged in staggered mode through the sealing plate which is arranged on the water outlet, maintenance or replacement of the Johnson net can be performed outside a machine body, a maintainer does not need to enter the machine body, and maintenance work of the scraper conveyor is greatly facilitated, and practicability of the scraper conveyor is improved.
4. The scraper conveyor body disclosed by the invention has the advantages that the trough is formed into the open structural shape with the cross section being big in top and small in bottom through the inclined plates and the vertical plates, the volume of the trough is increased, the trough is favorable for receiving the first wave into the coke water mixture in the trough, meanwhile, the inclined plates arranged obliquely upwards provide a certain support for the coke water mixture in the trough, the conveying blockage caused by sudden collapse of materials can be prevented, and the reliability of the scraper conveyor is improved.
5. The tensioning device and the driving device share one shaft in the scraper conveyor, so that overhaul and maintenance work of the scraper conveyor is reduced, and practicability of the scraper conveyor is improved.
Drawings
FIG. 1 is a front view of a scraper conveyor for a decoking system of the present invention;
FIG. 2 is a front cross-sectional view of a scraper conveyor for a decoking system of the present invention;
FIG. 3 is a schematic side cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of a blade chain and blade mounting structure;
fig. 5 is a schematic view of the installation structure of the riding wheel.
FIG. 6 is a schematic view of a mounting structure for a lower guide wheel;
FIG. 7 is a schematic view of the mounting structure of a Johnson mesh;
FIG. 8 is a schematic side view of FIG. 7;
FIG. 9 is a schematic diagram of a driving apparatus;
FIG. 10 is a schematic structural view of a tensioner;
Fig. 11 is a schematic view of the mounting structure of the tail wheel.
The marks in the figure: 1. the driving wheel, 2, gas collecting port, 3, upper guide wheel, 4, feed port, 5, cover plate, 6, side plate, 601, inclined plate, 602, vertical plate, 603, holding cavity, 7, end plate, 8, tail wheel, 801, traveling end bearing, 802, driven shaft, 803, fixed end bearing, 804, first support, 805, automatic grease injector, 9, manhole, 10, overflow port, 11, water outlet, 12, bottom plate, 13, sink port, 14, lower guide wheel, 1401, tail lower guide wheel, 15, riding wheel, 1501, riding wheel shaft, 1502, chain groove, 1503, first bearing, 16, trough, 17, scraper chain, 1701, return chain, 1702, working chain, 18, discharge port, 19, scraper, 20, guard plate, 21, supporting plate, 22, mounting hole, 23, mounting plate, 2301, second bearing, 2302, first pin, 24, ox horn, 25, hydraulic motor, 1, fixed plate, 2502, second pin, 2503, second support, 4, 25026, guide rail, 27, 29, hydraulic motor, hydraulic cylinder, 29, 3002, water outlet 3003, 3002, sealing plate, 3003, water outlet 3002, sealing plate, 3002.
Detailed Description
The invention will be further described with reference to the drawings and detailed description, wherein, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1 of a scraper conveyor for a specific decoking system of the invention:
As shown in fig. 1 to 3, the scraper conveyor for a decoking system of this embodiment includes a machine body, a driving wheel 1 driven by a driving device is provided at the head of the machine body, a tail wheel 8 is provided at the tail of the machine body, a scraper chain 17 is sleeved between the driving wheel 1 and the tail wheel 8, a scraper 19 is provided between the scraper chains 17, and when the driving device drives the driving wheel 1 to rotate, the driving wheel drives the scraper chain 17 to drive the scraper 19 to move between the driving wheel 1 and the tail wheel 8.
The machine body is provided with a closed trough 16 for a scraper chain 17 and a scraper 19 to drive the coke water mixture to move, the trough 16 can comprise a bottom plate 12 for supporting the coke water mixture to be conveyed on the machine body, side plates 6 arranged on two sides of the bottom plate 12, end plates 7 arranged on two ends of the bottom plate 12 and a cover plate 5 detachably fixed on the top of the side plates 6, the trough 16 is surrounded by the side plates 6, the end plates 7 and the cover plate 5, and a feed inlet 4 for feeding the trough 16 is arranged on the cover plate 5.
Specifically, the driving wheel 1 and the tail wheel 8 are both rotatably arranged on one side of the side plate 6 in the trough 16, the scraper chain 17 is sleeved on the driving wheel and the tail wheel 8 in the trough 16, and the cover plate 5 can be further provided with an air collecting port 2 for discharging tail gas in the trough 16.
In this embodiment, the side plate 6 may be provided with a water outlet 11 for discharging the cut coke water out of the trough 16 to separate water from coke in the process of moving the coke water mixture in the interval corresponding to the working chain 1702 and the return chain 1701, and the side plate 6 is further provided with an overflow port 10 higher than the water outlet 11 for maintaining a certain liquid level of accumulated water in the trough 16, so as to provide buoyancy for facilitating conveying of coke left in the trough 16 while separating the coke from water, thereby greatly reducing energy consumption of the scraper conveyor.
The directions higher and lower than the liquid level direction of the coke water mixture in the trough 16 are the liquid level direction of the coke water mixture in the trough 16, the certain liquid level is that the liquid level of the residual coke cutting water in the trough 16 is between the water outlet 11 and the overflow port 10, the effect of water-coke separation is reduced when the liquid level is exceeded, buoyancy convenient for conveying is not beneficial to keeping when the liquid level is lower than the liquid level, when the liquid level is in specific application, the water outlet 11 can be arranged at a position 0.4-0.6m away from the bottom of the side plate 6, the overflow port 10 is arranged at a position 0.2-0.4m above the water outlet 11, and meanwhile, a confluence port 13 for discharging accumulated water in the trough 16 is arranged at the bottom of the side plate so as to drain the accumulated water in the trough 16, thereby facilitating maintenance of workers in the conveyor, and a manhole 9 for facilitating the workers to enter the interior of the conveyor when the conveyor is stopped and overhauled is also arranged on the side plate 6.
In this embodiment, the drainage port 13 not only can drain the accumulated water in the trough 16 after the scraper conveyor is stopped, but also is beneficial to further conveniently adjusting the required level of the coke cutting water in the trough 16, for example, if the feeding amount of the coke water mixture suddenly increases abnormally during the production process of the scraper conveyor during operation, the phenomenon that the accumulated water level in the trough 16 is too high due to untimely discharging of the coke cutting water in the trough may exist, at this moment, the operation drainage port 13 can rapidly reduce the accumulated water level in the trough 16, so that the accumulated water level in the trough 16 is in a required range, during normal operation, the drainage port 11 is used for draining the coke cutting water in the coke water mixture, the overflow port 10 is only used for assisting drainage when the water amount is too large, and the drainage port 13 is closed during normal operation, and is used for drainage when the maintenance is stopped or the feeding amount of the coke water mixture suddenly increases abnormally.
In this embodiment, the working section of the scraper chain 17 is guided by corresponding guide wheels and is disposed at the bottom of the trough 16, the scraper chain 17 is a working chain between the tail wheel 8 disposed at the tail and the driving wheel 1 disposed at the head, and the section from the driving wheel 1 to the tail wheel 8 is a return chain, in particular, when the embodiment is provided, the scraper chain 17 between the driving wheel 1 and the tail wheel 8 and close to the bottom plate 6 is a working section, the scraper chain 17 between the driving wheel 1 and the tail wheel 8 and close to the cover plate 5 is a return section, the scraper chain 17 in the return section is a return chain 1701, the coke water mixture moves under the driving of the working chain 1702, the return chain 1701 is above the coke water mixture in the trough 16, the top of the side plate 6 is provided with a supporting wheel 15 for supporting the return chain 1701 above the coke water mixture in the trough 17016, the riding wheel 15 makes the return link 1701 and the working link 1702 in the trough 16 respectively approach the top and the bottom of the trough 16, makes the return link 1702 return from the upper part of the coke-water mixture and are positioned at two sides of the feeding port 4, wherein the two sides refer to that when the return link 1702 is projected forward on the cover plate 5, the feeding port 4 on the cover plate 5 is positioned between two chains of the return link 1702, at the moment, the two chains of the return link 1702 are respectively positioned at two sides of the feeding port 4, are positioned in the coke-water mixture below the trough 16 relative to the return link 1701, reduce the return friction force of the return link 1701, reduce the energy consumption of the scraper conveyor, simultaneously facilitate the installation and maintenance of the return link 1702 and the scraper, provide effective support for the return link 1701, reduce the risk of chain disengagement when the return link 1701 becomes loose, since the return chain 1701 does not affect the delivery of the focusing water mixture, the delivery of the focusing water mixture by the work chain 1702 can also be increased.
In addition, for the setting that the existing return link 1701 is under the working link 1702, the return link 1701 and the working link 1702 are together in the coke-water mixture, an interlayer is required to be arranged between the return link 1701 and the working link 1702, deposited coke powder brought back by the return link 1701 under the interlayer is required to be cleaned, the existing cleaning mostly adopts the return link 1701 to scrape the deposited coke powder with a scraper, so that the power consumption is increased, the energy consumption is high, water flushing is also adopted to wash the deposited coke powder, but water consumption is required, corresponding pipelines and valves are required to be arranged, the interlayer is not required to be arranged between the return link 1701 and the working link 1702, and the deposited coke powder under the interlayer is not required to be processed, so that the scraper conveyor is further convenient to use.
As shown in fig. 5, in this embodiment, when the riding wheel 15 is set, the riding wheel 1501 is disposed on the side plate 6, the riding wheel 15 is fixed on the riding wheel 1501 through the first bearing 1503, the riding wheel 15 is provided with a chain groove 1502 for supporting the return chain 1701 along a circle of the riding wheel 15, and when the riding wheel 15 is set, the riding wheel made of ultra-high molecular weight polyethylene can be adopted, at this time, the riding wheel 15 is directly sleeved on the riding wheel 1501 without the first bearing 1503, and rotation of the riding wheel 15 is realized by utilizing self-wettability of the ultra-high molecular weight polyethylene material and friction force of the chain groove 1502 to the return chain 1701 is reduced.
In this embodiment, the machine body may further be provided with a chain breakage protection device for the return chain 1701, where the chain breakage protection device may be an eddy current proximity switch, the proximity switch corresponds to a sensing element mounted on the guide wheel, when the guide wheel rotates, the proximity switch periodically senses the sensing element rotating along with the guide wheel, the electrical signal output by the sensor periodically changes, if the electrical signal does not change within a certain time, it is indicated that the guide wheel does not rotate, and the chain breakage phenomenon can be timely found.
It should be noted that, because the feed inlet 4 is disposed on the cover plate 5, when the coke water mixture enters the trough 16, a certain impact is usually caused to the scraper chain 17, which is easy to cause the chain-off phenomenon of the scraper chain 17, so as to affect the normal processing of the coke water mixture by the scraper conveyor, in this embodiment, the return chain 1701 is disposed at the top of the trough 16, which is close to the trough 16, so that the impact force of the coke water mixture to the scraper chain 17 can be effectively reduced, and the risk of chain-off of the scraper chain 17 is reduced.
In order to reduce the frictional force that receives when scraper 19 operates, the scraper 19 adopts the rectangle cross-section in this embodiment, form the cavity through channel-section steel and web welding, with the ponding interact in the silo 16 in the assurance intensity, increase the ponding in the silo 16 to the buoyancy of scraper 19, thereby realize reducing the frictional force that receives when scraper 19 operates, the steel sheet of 65Mn material has all been welded about the scraper 19 as the friction surface, wear-resisting and can change, extension scraper blade life, correspondingly, curb plate 6 and bottom plate 12 can adopt wear-resisting steel sheet, compare in general cast stone board, wear-resisting steel sheet is difficult broken under the slag button impact, lay simple time limit for a project short, change after life expires also very convenient.
In this embodiment, the ox horn connector may be adopted in the installation between the scraper chain 17 and the scraper 19, the scraper 19 is fixed with the ox horn 24 for embedding the chain, the scraper chain 17 only needs to be placed at the position where the chain is connected with the ox horn when driving the scraper 19 to work, when the scraper chain needs to be disassembled, the chain is moved to the position where the chain is separated from the position where the chain is connected with the ox horn, fig. 4 is a schematic diagram of the chain in the disassembling position and the working position, wherein the horizontal position in the drawing is the working position of the chain, when the chain is in the position, the chain is connected with the ox horn, and the vertical position in the drawing is the disassembling position of the chain, when the chain is in the position, the chain is separated from the working position from the connecting position of the ox horn, the structure is simple, the chain can be disassembled without a tool, and the risk of falling of parts is avoided.
The gas collecting port 2 of the embodiment can be used for connecting tail gas treatment equipment to uniformly treat the tail gas in the closed space formed by the trough 16, and in order to collect the tail gas in the trough 16 conveniently, a draught fan for exhausting can be arranged at the gas collecting port 2 to form micro negative pressure in the closed space, so that the tail gas in the closed space formed by the collecting plate 5 and the trough 16 is led to the tail gas treatment equipment, and the tail gas is prevented from escaping from other positions of the trough 16.
Example 2 of a scraper conveyor for a specific decoking system of the invention:
Unlike embodiment 1, the drain openings 11 of this embodiment may be provided with the johnson net 30 for preventing slag particles from being discharged from the trough 16 along with the coke cutting water, so as to reduce the probability of blocking the pipeline in the pipeline along with the coke cutting water, reduce the maintenance work of the scraper conveyor, and improve the working efficiency of the scraper conveyor.
As shown in fig. 7 and 8, the johnson screen 30 of this embodiment is set on the side plate through bolts, during use, the johnson screen 30 intercepts slag particles, preventing each pipeline from being blocked, and being beneficial to alleviating the pressure of carrying out subsequent treatment on discharged coke cutting water, in order to facilitate maintenance of the mounted johnson screen 30, the portion of the side plate 6 corresponding to the johnson screen 30 is provided with a frame 3001, the size of the frame 3001 is greater than that of the johnson screen 30, the frame 3001 is detachably provided with a sealing plate 3003 enclosing the frame 3001 into a sealing cavity 3002, the sealing plate 3003 can be fixed on the frame 3001 through a bolt assembly, the frame 3001 is provided with a water outlet 3004 communicated with the cavity 3002 for pipeline connection, in particular, the size of the sealing plate 3003 is also greater than that of the johnson screen 30 so as to facilitate the removal of the cavity 3002, the water outlet 3004 is arranged on the frame sealing plate, and the sealing plate 3001 is not arranged on the frame, thus the sealing plate 3003 is not required to be directly connected with the johnson screen 30, and the maintenance efficiency of the machine is improved, and the user does not need to be required to be changed when the sealing plate 3003 is required to be directly connected with the machine, and the machine is required to be directly connected to the maintenance machine to the machine for maintenance of the johnson screen 30.
Example 3 of scraper conveyor for a specific decoking system of the invention:
Different from the above embodiment, the side plate 6 of the present embodiment is provided with the inclined plate 601 extending out of the inclined trough 16, and the vertical plate 602 vertically fixed on the inclined plate 601, the inclined plate 601 and the vertical plate 602 enable the trough 16 to form an open structure shape with a large cross section and a small cross section, the cover plate 5 is detachably fixed on the vertical plate 602, the volume of the trough 16 is increased, the trough 16 is particularly beneficial to receiving the first wave into the coke-water mixture in the trough 16, meanwhile, the inclined plate 601 arranged obliquely provides a certain support for the coke-water mixture in the trough 16, and can also prevent the sudden collapse of materials to cause blockage, and improve the reliability of the scraper conveyor.
The apron 5 of this embodiment is when specifically setting up, and apron 5 is including setting up channel-section steel and the subplate at curb plate 15 top, and the channel-section steel is in the whole the top of enclosed area forms the grid form, and the channel-section steel can weld on riser 602, also accessible bolt fastening is on riser 602, and the subplate is equipped with a plurality of, and its quantity and the net quantity one-to-one that the channel-section steel formed are used for setting up in the net enclose into the silo, be equipped with the boss with net inner circle size looks adaptation on every subplate, and the boss setting is in the intermediate position of subplate, during the use, detains the boss lid of subplate in the net, and the edge portion of subplate is as supporting part and channel-section steel contact, and a net department lid is detained promptly has a subplate of card in the net, can prevent that the subplate from sliding on the channel-section steel, can lead to personnel to fall the gap of net after preventing that subplate and channel-section steel from appearing after sliding, improve the installation location of equipment safety guarantee, after the lid detains, every subplate can be fixed mode through bolt assembly and fixed with the net, and channel-section steel is unrestricted, and the subplate need dismantle in order to be equipped with the sealing layer rubber when the sealed area is convenient to install with the sealing layer, leak between the sealing layer and sealing rubber.
Because the trough 16 forms an open structural shape with a large section and a small section, in order to keep the length of the scraping plate 19 unchanged, in this embodiment, the vertical support plates 21 are arranged on the vertical plates 602, and the support plates 21 are positioned between the vertical plates 602 which are oppositely arranged and are used for installing the riding wheels 15, so that a supporting platform is provided for installing equipment such as the scraper chain 17, the riding wheels 15 and the like, the sizes of guide wheels for supporting the return chain 1701 and the working chain 1702 can be unified, the support plates 21, the vertical plates 602 and the cover plate 5 enclose an accommodating cavity 603 with an open bottom, and the accommodating cavity 603 can further be beneficial to the trough 16 to accept a coke water mixture of a first wave entering the trough 16 and to maintain the stability of the coke water mixture in the trough 16 when the feeding amount is suddenly changed, and provide an accommodating space for the coke cutting water which is gushed in the first wave coke water mixture or the coke cutting water which gushes when the feeding amount is suddenly increased.
In this embodiment, the obliquely-arranged protection plate 20 is disposed in the feed inlet 4, and the protection plate 20 is located above the return chain 1701, so as to prevent the return chain 1701 from being impacted by the coke water mixture entering from the feed inlet 4, further reduce the risk of chain disengagement of the scraper chain 17, and also set up a chain blocking plate above the working section of the scraper chain 17 to protect the working chain, so that the chain of the working section can be prevented from being impacted.
Example 4 of a scraper conveyor for a specific decoking system of the invention:
Different from the above embodiment, in this embodiment, in order to separate the residual solid coke in the chute 16 from the accumulated water in the chute 16 better, and simultaneously, in order to better meet the operation requirement of transporting the coke to a high place, the head of the machine body is higher than the tail, the chute 16 is internally provided with the lower guide pulley 14 and the upper guide pulley 3 which are convenient for the scraper chain 17 to turn, in particular implementation, the return chain 1701 is not affected by the transportation of the coke water mixture in the chute 16, the bottom of the chute 16 can be provided with the tail lower guide pulley 1401 which is positioned on the horizontal line and below the tail pulley 8, at this time, the scraper chain 17 which is positioned at the bottom of the chute 16 between the tail lower guide pulley 1401 and the driving pulley 1 is a working section, namely, the working chain 1702 for transporting the coke water mixture, the scraper chain 17 which is positioned at the top of the chute 16 between the tail lower guide pulley 1401 and the driving pulley 1 is a return section, namely, the return chain 1701 forms a horizontal transportation section for transporting the coke water mixture between the tail lower guide pulley 1401 and the driving pulley 1, and the inclined transportation section for transporting the coke is formed between the lower guide pulley 14 and the driving pulley 1, the inclined transportation section of the coke water mixture after the coke water is separated can be arranged at the bottom of the chute 16, namely, the inclined water mixture is not affected by the inclined section is discharged from the top section of the chute 18, namely, and the horizontal section is further arranged at the top of the chute is not affected by the inclined section, and the horizontal section is arranged at the top of the bottom of the chute section, and the bottom of the coke discharge section is completely separated from the bottom separated from the chute section, and the bottom of the chute section is more than the bottom separated.
Because lower guide pulley 14 and afterbody lower guide pulley 1401 are in the ponding in silo 16, when only under to lower guide pulley 14 or afterbody lower guide pulley 1401 overhauls, have to stop the conveyer and handle, as shown in fig. 6, take lower guide pulley 14 as the example, this embodiment is equipped with the mounting hole 22 that is used for installing lower guide pulley 14 on curb plate 6, with mounting hole 22 looks adaptation be equipped with the mounting panel 23 that fixed lower guide pulley 14 was used, articulate mounting panel 23 on curb plate 6 through first round pin axle 2302, with drive lower guide pulley 14 roll over into and go out mounting hole 22, be equipped with second bearing 2301 on curb plate 6, lower guide pulley 14 sets up on second bearing 2301, and when specific implementation, lower guide pulley 14 roll over is in the central axis of mounting hole 22 with second bearing 2301, and the central axis of mounting hole 22 be eccentric setting with the mounting hole, the eccentric setting is that the central axis of lower guide pulley 14 with the central axis of mounting hole 22 is not in a straight line, and the central axis that the central axis of lower guide pulley 14 is close to one side of the articulated position of lower guide pulley 23, can use like this the small bore 22 to realize that lower guide pulley 14 rolls over and roll over and carry out in order to carry out the silo 16, can carry out the maintenance of the conveyer and carry out the maintenance process of the silo 16 is more compact, and the conveyer can be reduced to the conveyer 16 is required to the maintenance of the whole size is carried out to the conveyer is required to the size, and the conveyer is required to be carried out.
In this embodiment, the lower guide wheel 14 is provided with a plurality of sealing measures, besides the lip-shaped sealing ring, the o-shaped ring and the labyrinth ring, a stream of clean flushing water is introduced, the labyrinth ring is flushed from the inside of the shaft, and clean water is used for replacing sewage, so that the lower guide wheel 14 in the accumulated water in the trough 16 is prevented from being damaged by particles to seal and the sewage enters the bearing cavity, and thus grease failure is prevented.
Example 5 of a scraper conveyor for a specific decoking system of the invention:
Unlike the above embodiment, the driving device of this embodiment is further provided with a tensioning device for increasing the tensioning force of the scraper chain 17, and the tensioning device and the driving device share one shaft, as shown in fig. 9 and 10, the machine body of this embodiment is provided with a tensioning device for preventing the scraper chain 17 from being de-linked, the tensioning device includes a bearing seat 26 movably arranged on the machine body along the moving direction of the coke water mixture, the driving wheel 1 is rotatably mounted on the bearing seat 26, the driving device includes a hydraulic motor 25 hinged on the machine body for driving the driving wheel 1 to rotate, the machine body is provided with a hydraulic cylinder 29 for pushing the bearing seat 26 to move to adjust the position of the driving wheel 1 to tension the scraper chain 17, and the shafts are respectively arranged on the machine body relative to the existing tensioning device and driving device, so that the maintenance workload of the conveyor is reduced, the strength of the machine body is enhanced, the maintenance of the scraper conveyor is facilitated, and the practicability is improved.
In the specific installation of the driving device of this embodiment, a second support 2503 may be fixedly arranged on the machine body, a fixing plate 2501 is hinged on the second support 2503 through a second pin shaft 2502, the hydraulic motor 25 is fixed on the fixing plate 2501, a driving shaft 2504 is arranged on an output shaft of the hydraulic motor 25, the driving shaft 1 is arranged on the driving shaft 2504, the hydraulic motor 25 drives the driving shaft 2504 to drive the driving shaft 1 to rotate, as shown in fig. 11, an installation schematic diagram of a tail wheel 8 is shown, a driven shaft 802 is fixed on the machine body through a first support 804 oppositely arranged, the tail wheel 8 is respectively arranged at two ends close to the driven shaft 802, specifically, the tail wheel 8 is respectively fixed on the driven shaft 802 through a traveling end bearing 801 arranged at one end and a fixed end bearing 803 arranged at the other end, and automatic grease injecting devices 805 for keeping the pressure in bearing cavities are respectively arranged on the traveling end bearing 801 and the fixed end bearing 803.
The machine body of the embodiment is provided with a guide rail 28 along the moving direction of the coke-water mixture, the bearing seat 26 is slidably mounted on the guide rail 28, a travel switch 27 for preventing the bearing seat 26 from being pushed far by the hydraulic cylinder 29 is arranged on the guide rail 28 along the moving direction of a piston rod far away from the hydraulic cylinder 29, and when the bearing seat 26 is pushed to a certain position, the hydraulic cylinder 29 stops pushing.
It should be noted that the above embodiments are only for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention falls within the protection scope of the present invention.
Claims (4)
1. The utility model provides a decoking scraper conveyor for system, includes the organism, and the head of organism is equipped with action wheel (1) by drive arrangement driven, and the afterbody of organism is equipped with tailwheel (8), and suit scraper chain (17) between action wheel (1) and tailwheel (8), be equipped with scraper blade (19), its characterized in that between scraper chain (17):
The machine body is provided with a closed trough (16) for a scraper chain (17) and a scraper (19) to drive the coke-water mixture to move, and a feed inlet (4) for feeding into the trough (16) is arranged on a cover plate (5) at the top of the trough (16);
The working section of the scraper chain (17) is guided by a corresponding guide wheel to be arranged at the bottom of the trough (16), and a water outlet (11) higher than the bottom surface of the trough (16) is arranged on a side plate (6) of the trough (16) so as to keep water which can submerge the working section of the scraper chain (17) to provide buoyancy for coke in the trough (16) while separating coke from water;
The return section of the scraper chain (17) is supported and arranged at the top of the trough (16) by a riding wheel (15) and positioned at two sides of the feed inlet (4), and a protection plate (20) which is obliquely arranged is arranged in the feed inlet (4);
The distance between the water outlet (11) and the bottom of the side plate (6) is 0.4-0.6m, and a confluence port (13) for discharging accumulated water in the trough (16) is arranged near the bottom of the side plate (6);
The side plate (6) is provided with a mounting hole (22) for mounting the lower guide wheel (14), a mounting plate (23) for fixing the lower guide wheel (14) is matched with the mounting hole (22), the mounting plate (23) is hinged on the side plate (6) to drive the lower guide wheel (14) to roll in and out of the mounting hole (22), and the central axis of the lower guide wheel (14) and the mounting hole (22) are eccentrically arranged;
the side plates (6) are also provided with inclined plates (601) which are obliquely arranged and vertical plates (602) which are vertically fixed on the inclined plates (601), the cross sections of the trough (16) are in a shape of big end down by the inclined plates (601) and the vertical plates (602), the cover plates (5) are detachably fixed on the vertical plates (602), the vertical plates (602) are provided with supporting plates (21) for mounting the riding wheels (15), and the supporting plates (21), the vertical plates (602) and the cover plates (5) form accommodating cavities (603) with open bottoms;
The machine body is provided with a tensioning device for preventing the scraper chain (17) from being separated, the tensioning device comprises a bearing seat (26) which is movably arranged on the machine body along the moving direction of the coke-water mixture, the driving wheel (1) is rotatably arranged in the bearing seat (26), the driving device comprises a hydraulic motor (25) which is hinged on the machine body and is used for driving the driving wheel (1) to rotate, the machine body is provided with a hydraulic cylinder (29) which is used for pushing the bearing seat (26) to move so as to adjust the position of the driving wheel (1) to enable the scraper chain (17) to be tensioned, the hydraulic motor (25) is fixed on a fixed plate (2501) which is connected with the machine body through a second pin shaft (2502), a guide rail (28) is arranged on the machine body along the moving direction of the coke-water mixture, and the bearing seat (26) is slidably arranged on the guide rail (28).
2. A scraper conveyor for a decoking system according to claim 1, wherein a johnson screen (30) is provided in the drain opening (11) to prevent slag particles from draining from the trough (16) with the decoking water.
3. A scraper conveyor for a decoking system according to claim 2, characterized in that the side plates (6) are provided with a frame (3001) corresponding to each johnson net (30), a sealing plate (3003) for enclosing the frame (3001) into a sealed cavity (3002) is detachably mounted on the frame, and a water outlet (3004) communicated with the cavity for pipeline connection is formed on the frame.
4. The scraper conveyor for the decoking system according to claim 1, wherein the head of the machine body is higher than the tail of the machine body, a lower guide wheel (14) and an upper guide wheel (3) which are convenient for the turning of the scraper chain (17) are arranged in the trough (16), the lower guide wheel (14) and the upper guide wheel (3) divide the scraper chain (17) in the trough (16) into a horizontal conveying section and an inclined conveying section, so that the scraper chain (17) drives the scraper (19) to drive the coke after the water-coke separation to enter the inclined conveying section from the horizontal conveying section to separate the coke from accumulated water in the trough (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917195.6A CN114834828B (en) | 2021-08-09 | 2021-08-09 | Scraper conveyor for decoking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110917195.6A CN114834828B (en) | 2021-08-09 | 2021-08-09 | Scraper conveyor for decoking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114834828A CN114834828A (en) | 2022-08-02 |
| CN114834828B true CN114834828B (en) | 2024-06-18 |
Family
ID=82562161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110917195.6A Active CN114834828B (en) | 2021-08-09 | 2021-08-09 | Scraper conveyor for decoking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114834828B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834443A (en) * | 2014-03-26 | 2014-06-04 | 青岛正大正电力环保设备有限公司 | Slag conveyor of powdered coal pressurizing gasifier |
| CN107937004A (en) * | 2017-11-09 | 2018-04-20 | 洛阳涧光特种装备股份有限公司 | A kind of delayed coking conveys with petroleum coke, is dehydrated and storage facilities |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204127976U (en) * | 2014-08-28 | 2015-01-28 | 大唐清苑热电有限公司 | A kind of scraper plate parallelism adjusting instrument of water immersion type scraping board slag conveyor |
| CN204727841U (en) * | 2015-06-08 | 2015-10-28 | 陕西冶金设计研究院有限公司 | A kind of low moisture of charring furnace goes out coke installation |
| CN212395958U (en) * | 2020-05-26 | 2021-01-26 | 曲靖市盛凯焦化有限责任公司 | Mechanized tar ammonia water clarification device |
| CN212892220U (en) * | 2020-08-28 | 2021-04-06 | 西安煤矿机械有限公司 | Scraper conveying device of composite furnace coke quenching equipment |
-
2021
- 2021-08-09 CN CN202110917195.6A patent/CN114834828B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834443A (en) * | 2014-03-26 | 2014-06-04 | 青岛正大正电力环保设备有限公司 | Slag conveyor of powdered coal pressurizing gasifier |
| CN107937004A (en) * | 2017-11-09 | 2018-04-20 | 洛阳涧光特种装备股份有限公司 | A kind of delayed coking conveys with petroleum coke, is dehydrated and storage facilities |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114834828A (en) | 2022-08-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103008096B (en) | Integral garbage crushing and sorting machine and garbage disposal method thereof | |
| AU2019297225B2 (en) | Fully rotating frictional chained plate pulley material feeder | |
| CN104552019B (en) | Full-automatic drum-type shot blasting machine | |
| CN202657586U (en) | Self-cleaning bucket elevator | |
| CN114834829B (en) | Plate chain conveyor for delayed coking water-coke separation and water-coke separation system | |
| CN111111842B (en) | Novel double-geared roller crusher | |
| CN210787532U (en) | Waste glass slag arranging production line | |
| CN215843153U (en) | Energy-saving modular ore crushing equipment with adjustable hydraulic intensity | |
| CN209363264U (en) | A kind of mobile construction waste sorting unit | |
| CN114834828B (en) | Scraper conveyor for decoking system | |
| CN111963209B (en) | Tunnel grouting trolley adopting shield method | |
| CN112604757A (en) | Garbage crusher | |
| CN209480508U (en) | A kind of full rolling friction carrier bar support roller batcher | |
| CN205296114U (en) | Box hopper formula trash cleaning machine | |
| CN114210401A (en) | Pretreatment crushing device for industrial hazardous waste incineration line | |
| CN201459696U (en) | River floating garbage cleaning and disposal conveyer | |
| CN212914765U (en) | Sewage treatment garbage recycling device | |
| KR101357548B1 (en) | Reclaimer | |
| CN207430517U (en) | For sieving the Material Discharge Device Used in Jigging of lower air chamber | |
| CN217024192U (en) | Wear-resisting bucket elevator of weighing that operates stably | |
| CN215477619U (en) | Wear-resistant plate chain elevator | |
| CN220244896U (en) | Belt conveyor dust collector | |
| CN216880893U (en) | Grade elevator for mineral processing | |
| CN211443878U (en) | Mining coal slime spiral hoisting device | |
| CN220448784U (en) | Vertical conveying device for kitchen waste |
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 |