CN114834828A

CN114834828A - Scraper conveyor for decoking system

Info

Publication number: CN114834828A
Application number: CN202110917195.6A
Authority: CN
Inventors: 刘志平; 杨腾云; 张小建; 李晓昌; 刘海莹; 王晓兵; 叶敏育
Original assignee: Luoyang Jianguang Special Equipment Co ltd; Jiaoguang Shanghai Special Equipment Co ltd
Current assignee: Luoyang Jianguang Special Equipment Co ltd; Jiaoguang Shanghai Special Equipment Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-08-02

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 driven, the afterbody of organism is equipped with the tailwheel, the cover is equipped with 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 drive coke-water mixture to remove, be equipped with the feed inlet on the apron at silo top, scraper chain's working segment sets up in the bottom of silo by corresponding guide pulley guide, be equipped with the outlet that is higher than the silo bottom surface on the curb plate of silo, in order can remain in the silo when the separation of coke-water and submerge the water that the scraper chain working segment provided buoyancy for the coke, scraper chain's return stroke section is set up the top at the silo and is located the both sides of feed inlet by the riding wheel supporting. The scraper conveyor disclosed by the invention realizes water-coke separation in the process of hermetically conveying the coke-water mixture, and has the advantages of low conveying energy consumption, convenience in use and high working efficiency.

Description

Scraper conveyor for decoking system

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 processing heavy and poor raw materials, and has become the most common residual oil processing process at present, and petroleum coke as a solid product of the process is widely applied to the electrolytic aluminum industry in China.

Most coking devices adopt a traditional coke storage tank mode to treat petroleum coke: coke and coke cutting water in the hydraulic decoking process are discharged into an open-air coke storage tank together from a coke tower through a coke water mixture, solid coke and coke cutting water are separated in the coke storage tank, when the coke cutting water is discharged, the coke stays in the coke tank, then a coke loading truck is transported out by utilizing an overhead grab crane, the solid coke and the coke cutting water of the treatment mode are carried out in the coke storage tank, the used coke storage tank needs a place with a large occupied area, and the operating efficiency of the whole petroleum coke treatment process is low.

At present, a decoking system has a conveying device for separating coke cutting water from solid coke in the process of conveying a coke-water mixture so as to solve the problem of water-coke separation of the coke-water mixture by utilizing a coke storage tank, but the existing conveying device has high energy consumption, is easy to have the problems of chain derailment, inconvenient maintenance and the like, and causes the existing conveying device to have inconvenient use and low working efficiency.

Disclosure of Invention

The invention aims to provide a scraper conveyor for a decoking system, which solves the problems of high energy consumption, inconvenient use and low working efficiency of the existing conveying device.

The technical scheme adopted by the invention to achieve the aim is as follows:

the utility model provides a decoking system is with scraping plate conveyor, 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 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 driving a coke-water mixture to move by a scraper chain and a scraper, and a feed inlet for feeding into the trough is formed in a cover plate at the top of the trough;

the working section of the scraper chain is guided by corresponding guide wheels and arranged at the bottom of the trough, and a water outlet higher than the bottom surface of the trough is arranged on a side plate of the trough so as to reserve water capable of submerging the working section of the scraper chain to provide buoyancy for coke in the trough while separating coke and water;

and the return section of the scraper chain is supported by a riding wheel and arranged at the top of the trough and positioned at two sides of the feeding hole.

Furthermore, the water outlet is 0.4-0.6m away from the bottom of the side plate, and a water collecting opening for discharging accumulated water in the trough is arranged at the position close to the bottom of the side plate.

Furthermore, a Johnson net for preventing slag particles from being discharged from the trough along with the coke cutting water is arranged in the water outlet.

Furthermore, each johnson net corresponding to the side plate is provided with a frame body, the frame body is detachably provided with a sealing plate which can enclose the frame body into a sealed cavity, and the frame body is provided with a water outlet communicated with the cavity and used for pipeline connection.

Further, still be equipped with the swash plate of slant setting and the vertical riser of fixing on the swash plate on the curb plate, swash plate and riser make the cross-section of silo is big-end-up form, the apron can be dismantled and fix on the riser.

Furthermore, a supporting plate used for installing the riding wheel is arranged on the vertical plate, and the supporting plate, the vertical plate and the cover plate form an accommodating cavity with an open bottom.

Further, the head of organism is higher than the afterbody setting, is equipped with lower guide pulley and the last guide pulley that the scraper chain of being convenient for turned to in the silo, and lower guide pulley and last guide pulley divide into horizontal transport section and slant transport section with the scraper chain in the silo to the separation of coke and the intraductal ponding of silo is realized when the horizontal transport section gets into the slant transport section to coke that the scraper chain drive scraper blade after driving the water coke separation.

Furthermore, 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 manner of being matched with the mounting hole, and the mounting plate is hinged to the side plate so as to drive the lower guide wheel to turn on side and enter and exit the mounting hole.

Further, be equipped with the overspeed device tensioner who prevents the scraper chain from taking off the chain on the organism, overspeed device tensioner includes that the moving direction along the burnt water mixture can move the bearing frame of setting on the organism, the action wheel rotates and installs in the bearing frame, drive arrangement is including articulating and being 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 the action wheel position messenger scraper chain tensioning on the organism.

Furthermore, the hydraulic motor is fixed on a fixing 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 conveys the coke-water mixture through the closed trough, the coke cutting water is discharged out of the trough to realize water-coke separation in the process of safely and environmentally conveying the coke-water mixture, meanwhile, buoyancy convenient for conveying is provided for coke left in the trough, conveying energy consumption is reduced, the buoyancy generated by accumulated water in the trough can also improve the upper limit of the amount of the coke conveyed when the scraper conveyor is started under the maximum load, and the scraper conveyor has safety and reliability when the conveyor is started in a full bin.

2. According to the scraper conveyor, the return section is arranged at the top of the trough, the working section is arranged at the bottom of the trough, so that the return section works above a coke-water mixture in the trough, and compared with the arrangement that the return section is arranged below the working section in the coke-water mixture, the return friction force of the return section chain is reduced, so that the conveying energy consumption is reduced, meanwhile, the installation and maintenance of the return section chain are facilitated, the effective support for the return section chain is provided, the risk of chain detachment when the return section chain becomes loose is reduced, and the conveying capacity of the working chain to the coke-water mixture can be increased.

3. The scraper conveyor is provided with the Johnson net which prevents slag particles from being discharged from the trough along with the coke cutting water in the water outlet, the Johnson net is integrally arranged on the side plate, 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, and the practicability of the scraper conveyor is improved.

4. The scraper conveyor body of the invention enables the cross section of the trough to be in an open structure shape with a large top and a small bottom through the inclined plate and the vertical plate, increases the volume of the trough, is beneficial to the trough to receive the coke-water mixture entering the trough by the first wave, and meanwhile, the inclined plate arranged in the inclined direction provides a certain support for the coke-water mixture in the trough, can prevent the conveying blockage caused by the sudden collapse of the material, and improves the reliability of the scraper conveyor.

5. The tensioning device and the driving device in the scraper conveyor share one shaft, so that the overhauling and maintenance work of the scraper conveyor is reduced, and the practicability of the scraper conveyor is improved.

Description of the 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 side cross-sectional structural view of FIG. 1;

FIG. 4 is a schematic view of the installation structure of the scraper chain and the scraper;

fig. 5 is a schematic view of the mounting structure of the riding wheel.

FIG. 6 is a schematic view of the mounting structure of the lower idler;

FIG. 7 is a schematic view of the installation structure of a Johnson mesh;

FIG. 8 is a side view of the structure of FIG. 7;

FIG. 9 is a schematic structural diagram of a driving device;

FIG. 10 is a schematic view of the tensioner;

fig. 11 is a schematic view of the mounting structure of the tail pulley.

The labels in the figure are: 1. driving wheel, 2, air collecting port, 3, upper guide wheel, 4, feed port, 5, cover plate, 6, side plate, 601, inclined plate, 602, vertical plate, 603, containing cavity, 7, end plate, 8, tail wheel, 801, floating end bearing, 802, driven shaft, 803, fixed end bearing, 804, first support, 805, automatic greasing device, 9, manhole, 10, overflow port, 11, water outlet, 12, bottom plate, 13, confluence 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, protection plate, 21, support plate, 22, mounting hole, 23, mounting plate, 2301, second bearing, 2302, first pin shaft, 24, ox horn, 25, hydraulic motor, 2501, fixing plate, 2502, second pin shaft, 2503. the device comprises a second support 2504, a driving shaft, 26, a bearing seat, 27, a travel switch, 28, a guide rail, 29, a hydraulic cylinder, 30, a Johnson net, 3001, a frame body, 3002, a cavity, 3003, a sealing plate, 3004 and a water outlet.

Detailed Description

The invention is further described in the following description with reference to the figures and the detailed description, wherein in the description of the invention, "plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, 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 present 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 disposed at a head of the machine body, a tail wheel 8 is disposed at a 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 disposed between the scraper chains 17, and when the driving wheel 1 is driven by the driving device 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 organism has the closure silo 16 that supplies scraper chain 17 and scraper blade 19 to drive the burnt water mixture and remove, and silo 16 can be used for supporting the bottom plate 12 of waiting to carry the burnt water mixture on the organism, set up in the curb plate 6 of bottom plate 12 both sides, set up in the end plate 7 at bottom plate 12 both ends and can dismantle the apron 5 of fixing at the 6 tops of curb plate, and curb plate 6, end plate 7 and apron 5 enclose and become silo 16 is equipped with the feed inlet 4 that is used for to the feeding in the silo 16 on the apron 5.

Specifically, the driving wheel 1 and the tail wheel 8 can be 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 a gas collecting port 2 for discharging tail gas in the trough 16.

In this embodiment, a water outlet 11 for discharging the coke-cutting water out of the trough 16 to separate water from coke in the process of moving the coke-water mixture is arranged in the interval corresponding to the working chain 1702 and the return chain 1701 on the side plate 6, and an overflow port 10 higher than the water outlet 11 and used for maintaining a certain liquid level accumulated water in the trough 16 is further arranged on the side plate 6, so that the buoyancy convenient for conveying is provided for the coke left in the trough 16 during the separation of the coke and the water, thereby greatly reducing the energy consumption of the scraper conveyor, and in addition, the buoyancy generated by the accumulated water in the trough 16 can also improve the upper limit of the coke amount capable of being conveyed when the scraper conveyor is started under the maximum load, so that the conveyor is safer and more reliable when being started in a full bin, and the service life of a friction part can be prolonged.

Wherein, be higher than and be less than the liquid level direction that the direction that indicates is the interior burnt water mixture of silo 16, certain liquid level indicates that the liquid level of remaining coke cutting water in the silo 16 is in between outlet 11 to overflow mouth 10, surpass this liquid level and will reduce the effect of water burnt separation, be less than this liquid level and will be unfavorable for keeping the buoyancy of being convenient for to carry, when specifically applying, outlet 11 can open and establish the position department that is 0.4-0.6m high apart from the bottom of curb plate 6, overflow mouth 10 sets up the position department of 0.2-0.4m above outlet 11, set up the confluence mouth 13 that is used for discharging ponding in the silo 16 simultaneously bottom the curb plate, so that the ponding in the evacuation silo 16, make things convenient for the staff to overhaul the inside of conveyer, still be equipped with the manhole 9 that makes things convenient for the staff to get into the inside of conveyer when being used for the conveyer to shut down to overhaul on curb plate 6.

In this embodiment, the confluence opening 13 not only can drain accumulated water in the trough 16 after the scraper conveyor is shut down, but also is beneficial to further conveniently adjusting the coke-cutting water level required to be maintained in the trough 16, for example, in the production process of the scraper conveyor in operation, if the feeding amount of the coke-water mixture is suddenly and abnormally increased, the coke-cutting water in the trough may not be discharged timely, which causes the phenomenon that the accumulated water level in the trough 16 is too high, at this time, the operation confluence opening 13 can quickly 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 water outlet 11 is used for discharging coke-cutting water in the coke-water mixture, the overflow opening 10 only assists in draining water when the water amount is too large, the confluence opening 13 is closed during normal operation, and is used for draining when shutdown maintenance is needed or the feeding amount of the coke-water mixture is suddenly and abnormally increased.

In the embodiment, the working section of the scraper chain 17 is guided by the corresponding guide wheel and arranged at the bottom of the trough 16, the scraper chain 17 is arranged in the section for driving the coke-water mixture to move, namely, the working chain is arranged between the tail wheel 8 arranged at the tail part and the driving wheel 1 arranged at the head part, the section from the driving wheel 1 to the tail wheel 8 is the return chain, and when the arrangement is made, the scraper chain 17 between the driving wheel 1 and the tail wheel 8 and close to the bottom plate 6 is the working section, the scraper chain in the working section is the working chain 1702 for driving the coke-water mixture to move in the trough 16, the scraper chain 17 between the driving wheel 1 and the tail wheel 8 and close to the cover plate 5 is the return section, the scraper chain 17 in the return section is the 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 supporting wheel 15 for supporting the return chain 1701 to make 1701 above the coke-water mixture in the trough 16 is arranged close to the top of the side plate 6, the idler 15 brings the return chain 1701 and the work chain 1702 inside the trough 16 close to the top and bottom of the trough 16, respectively, returns the return chain 1702 from above the coke-water mixture and on both sides of the feed opening 4, the two sides are indicated that when the return chain 1702 is orthographically projected on the cover plate 5, the feed opening 4 on the cover plate 5 is positioned between the two chains of the return chain 1702, at this time, the two chains of the return chain 1702 are respectively positioned at the two sides of the feed opening 4, are arranged below the trough 16 relative to the return chain 1701 and are positioned in the coke-water mixture, the return friction of the return chain 1701 is reduced, the energy consumption of the scraper conveyor is reduced, while facilitating installation and maintenance of the return chain 1702 and flights, providing effective support for the return chain 1701, reducing the risk of chain derailment when the return chain 1701 chain becomes loose, and, in addition, the return link 1701 may also increase the amount of the coke water mixture delivered by the working link 1702, since it does not affect the delivery of the coke water mixture.

In addition, for the arrangement that the existing return chain 1701 is arranged below the working chain 1702 and the return chain 1701 and the working chain 1702 are located in the coke-water mixture together, a separation layer needs to be arranged between the return chain 1701 and the working chain 1702, the deposited coke powder brought back by the return chain 1701 below the separation layer needs to be cleaned, the existing cleaning method mostly adopts the return chain 1701 to carry a scraper to scrape the deposited coke powder, so that the power consumption is increased, the energy consumption is high, the deposited coke powder is washed away by adopting water washing, but the water consumption is needed, and a corresponding pipeline and a corresponding valve need to be arranged.

As shown in fig. 5, in this embodiment, when the idler 15 is installed, an idler shaft 1501 is provided on the side plate 6, the idler 15 is fixed on the idler shaft 1501 through a first bearing 1503, a chain groove 1502 for supporting the return chain 1701 is provided on the idler 15 along a circumference of the idler 15, and in addition, when the idler 15 is installed, an idler made of ultra-high molecular weight polyethylene may be used, and at this time, the idler 15 is directly sleeved on the idler shaft 1501 without providing the first bearing 1503, and the rotation of the idler 15 and the reduction of the friction force when the chain groove 1502 supports the return chain 1701 are realized by utilizing the self-wettability of the ultra-high molecular weight polyethylene material.

In this embodiment, the body may further include a chain breakage protection device for the return chain 1701, the chain breakage protection device may be an eddy current type proximity switch, the proximity switch corresponds to the sensing member mounted on the guide wheel, when the guide wheel rotates, the proximity switch periodically senses the sensing member rotating with the guide wheel, the electrical signal output by the sensor periodically changes, and if the electrical signal does not change within a certain time, it indicates 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 arranged on the cover plate 5, when the coke-water mixture enters the trough 16, the coke-water mixture often causes a certain impact on the scraper chain 17, which easily causes the chain dropping phenomenon of the scraper chain 17, thereby affecting the normal processing of the coke-water mixture by the scraper conveyor, in this embodiment, the return chain 1701 is arranged at the top close to the trough 16, and the impact force of the coke-water mixture on the scraper chain 17 can be effectively reduced, and the risk of chain dropping of the scraper chain 17 is reduced.

In order to reduce the frictional force that receives during the scraper blade 19 operation, scraper blade 19 adopts the rectangular cross section in this embodiment, form the cavity through channel-section steel and web welding, when guaranteeing intensity with the ponding interact in the silo 16, increase the buoyancy of ponding to scraper blade 19 in the silo 16, with this realization reduce the frictional force that receives during the scraper blade 19 operation, the steel sheet that 65Mn material all welded about scraper blade 19 is 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 slab board, wear-resisting steel sheet is difficult broken under the cinder impact, lay simple time limit for a project weak point, it is also very convenient to change after life expires.

The ox horn connector can be adopted in the installation between scraper chain 17 and scraper 19 in this embodiment, scraper 19 is fixed with the ox horn 24 that supplies the chain embedding, scraper chain 17 only need put the chain to produce the position of interconnect with the ox horn when driving scraper 19 during operation, when needs dismantle, it can to break away from and ox horn interconnect department with the chain moving, fig. 4 is that the chain is located the schematic diagram of dismouting position and operating position, wherein horizontal position in the figure is the chain operating position, when being in this position, chain and ox horn interconnect, vertical position in the figure is the chain dismouting position, when being in this position, the chain breaks away from interconnect with the ox horn from operating position, moreover, the steam generator is simple in structure, it is fixed to need not bolt or round pin axle, can the dismouting need not the instrument, the risk that no part drops.

The gas collection mouth 2 of this embodiment can be used to connect tail gas treatment facility to carry out the unified processing to the tail gas in the enclosure space that silo 16 formed, for the convenience of collecting the tail gas in the silo 16, still can set up the fan of induced draft type in gas collection mouth 2 department, make in the enclosure space form little negative pressure, be favorable to leading the tail gas in the enclosure space that forms collecting plate 5 and silo 16 to tail gas treatment facility, also prevent simultaneously that tail gas from other positions of silo 16 from escaping.

Example 2 of a scraper conveyor for a specific decoking system of the present invention:

different from embodiment 1, the drain 11 of this embodiment can be provided with the johnson net 30 for preventing the 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 when the slag particles are discharged into the pipeline along with the coke cutting water, reduce the maintenance work of the scraper conveyor, and improve the work efficiency of the scraper conveyor, and in addition, because the drain 11 is arranged on the side plate 6, when the johnson net 30 is installed, the whole johnson net 30 is positioned on the side plate 6, and is installed on the bottom plate 12 relative to the existing johnson net 30, not only the abrasion of the scraper 19 to the johnson net 30 is avoided, and the service life of the johnson net 30 is prolonged, but also the johnson net 30 is convenient to replace, thereby facilitating the maintenance work of the scraper conveyor, and improving the practicability of the scraper conveyor.

As shown in fig. 7 and 8, the johnson net 30 of the present embodiment may be disposed on the side plate by bolts, when in use, the johnson net 30 blocks slag particles, so as to prevent each pipeline from being blocked, and at the same time, it is beneficial to reduce the pressure for performing the subsequent treatment on the discharged slit-focus water, in order to facilitate the inspection of the installed johnson net 30, frame bodies 3001 are disposed on the side plate 6 at positions corresponding to the johnson net 30, the size of the frame body 3001 is larger than that of the johnson net 30, a sealing plate 3003 enclosing the frame body 3001 into a sealed cavity 3002 is detachably mounted on the frame body 3001, the sealing plate 3003 may be fixed on the frame body 3001 by bolt assemblies, a water outlet 3004 communicated with the cavity 3002 for connecting to a pipeline is disposed on the frame body 3001, specifically, the size of the sealing plate 3003 is also larger than that of the johnson net 30 is larger than that is convenient for taking out the detached johnson net 30 from the cavity 3002, the water outlet 3004 is disposed on the frame body, and non-setting is on shrouding 3003, such setting makes the pipeline of being connected with delivery port 3004 no longer influence the maintenance to johnson net 30, for example when needs change johnson net 30, need not to dismantle the pipeline of being connected with delivery port 3004, can directly open shrouding 3003, change johnson net 30 after the shrouding 3003 of going up again can, need not inside the maintainer gets into the organism, improve scraper conveyor's maintenance treatment efficiency greatly, improve scraper conveyor's practicality.

Example 3 of a scraper conveyor for a specific decoking system of the present invention:

different from the above-mentioned embodiment, be equipped with the swash plate 601 that the slant silo 16 stretches out outward on the curb plate 6 of this embodiment, and vertically fix the riser 602 on the swash plate 601, swash plate 601 and riser 602 make silo 16 form the cross-section and be big-end-up's open type structural shape, apron 5 can dismantle fix on riser 602 can, silo 16's volume has been increased, be favorable to the silo 16 to accept the burnt water mixture in first ripples gets into silo 16 very much, and simultaneously, the swash plate 601 because of the slant upwards sets up provides certain support to the burnt water mixture in the silo 16, can also prevent that the material from collapsing suddenly and causing the jam, improve scraper conveyor's reliability.

When the cover plate 5 of the embodiment is specifically arranged, the cover plate 5 comprises a channel steel and a plurality of daughter boards which are arranged at the top of the side plate 15, the channel steel forms a grid shape at the top of the whole closed area, the channel steel can be welded on the vertical plate 602 and can also be fixed on the vertical plate 602 through bolts, the number of the daughter boards corresponds to the number of grids formed by the channel steel one by one and is used for being arranged in the grids to form the troughs, each daughter board is provided with a boss which is matched with the size of an inner ring of the grids, the boss is arranged in the middle of the daughter board, when the cover plate is used, the boss of the daughter board is covered and buckled in the grids, the edge part of the daughter board is used as a supporting part to be contacted with the channel steel, namely, one daughter board clamped in the grids is covered and buckled at the grid, the daughter board can be prevented from sliding on the channel steel, the phenomenon that personnel can fall into gaps of the grids after the daughter board and the channel steel slide is prevented, the installation and positioning of the daughter board are facilitated while the safety of the equipment is improved, after the lid is buckled, every daughter board accessible bolt assembly is fixed with the channel-section steel, and the fixed mode of channel-section steel and riser 602 is unrestricted promptly, and the daughter board needs the dismantlement that can be convenient to the maintenance of equipment, when the installation, be equipped with the rubber seal layer between every daughter board and the channel-section steel, leak with the seal that increases closed area, reduction tail gas.

Because silo 16 forms the open structure shape that the cross-section is big-end-up, for keeping scraper 19 length unchangeable, be provided with vertical extension board 21 on the riser 602 in this embodiment, extension board 21 is located between the riser 602 of relative setting, be used for installing riding wheel 15, thereby for equipment such as scraper chain 17 and riding wheel 15's installation provides supporting platform, make the guide pulley size that supports return chain 1701 and working chain 1702 can be unified, extension board 21 and riser 602 and apron 5 enclose into the open holding chamber 603 in bottom, this holding chamber 603 can further be favorable to silo 16 to accept the burnt water mixture that the first wave got into in silo 16 and be favorable to maintaining the stability of burnt water mixture in silo 16 when the feeding volume takes place the sudden change, provide accommodation space for the burnt water that rises when the burnt water that rises or the feeding flow suddenly increase in the burnt water mixture of first wave.

In this embodiment, a protection plate 20 is arranged in the feed inlet 4 in an inclined manner, and the protection plate 20 is located above the return chain 1701, so that the return chain 1701 is prevented from being impacted by a coke-water mixture entering from the feed inlet 4, the risk of chain dropping of the scraper chain 17 is further reduced, a baffle plate can be arranged above the working section of the scraper chain 17 to protect the working chain, and 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 present invention:

different from the above embodiments, in order to better separate the solid coke remaining in the trough 16 from the accumulated water in the trough 16 and better meet the operation requirement of transporting the coke to a high place, the head of the machine body is arranged higher than the tail, the trough 16 is internally provided with the lower guide wheel 14 and the upper guide wheel 3 which are convenient for the direction change of the scraper chain 17, in particular, in order to better prevent the return chain 1701 from being influenced by the transportation of the coke-water mixture in the trough 16, the bottom of the trough 16 can be provided with the tail lower guide wheel 1401 which is positioned on the horizontal line with the lower guide wheel 14 and below the tail wheel 8, the scraper chain 17 positioned at the bottom of the trough 16 between the tail lower guide wheel 1401 and the driving wheel 1 is a working section, namely, the working chain 1702 for transporting the coke-water mixture, and the scraper chain 17 positioned at the top of the trough 16 between the tail lower guide wheel 1401 and the driving wheel 1 is a return section, that is, the return chain 1701, a horizontal conveying section for conveying coke-water mixture is formed between the tail lower guide wheel 1401 and the lower guide wheel 14, an inclined conveying section for conveying coke is formed between the lower guide wheel 14 and the driving wheel 1, the scraper chain 17 and the scraper 19 drive the coke after water-coke separation to move to the inclined conveying section, and then the coke can be thoroughly separated from accumulated water in the trough 16, so that the accommodating capacity of the horizontal conveying section can be increased, namely, the distance between the working section chain and the return chain is increased, the return chain 1701 on the upper portion cannot be easily influenced by the coke-water mixture of the horizontal conveying section, a discharge opening 18 for discharging solid coke is formed in the bottom plate 12, close to the top, of the inclined conveying section, and the coke conveyed to the discharge opening can be discharged from the discharge opening 18.

Because the lower guide wheel 14 and the tail lower guide wheel 1401 are in the accumulated water in the trough 16, when only the lower guide wheel 14 or the tail lower guide wheel 1401 is overhauled, the conveyor has to be stopped for handling, as shown in fig. 6, by taking the lower guide wheel 14 as an example, in this embodiment, a mounting hole 22 for mounting the lower guide wheel 14 is formed on the side plate 6, a mounting plate 23 for fixing the lower guide wheel 14 is arranged in a manner of being matched with the mounting hole 22, the mounting plate 23 is hinged on the side plate 6 through a first pin shaft 2302 to drive the lower guide wheel 14 to turn laterally into and out of the mounting hole 22, a second bearing 2301 is arranged on the side plate 6, and the lower guide wheel 14 is arranged on the second bearing 2301, in specific implementation, after the lower guide wheel 14 turns laterally into the mounting hole 22, the central axis of the second bearing 2301 and the mounting hole 22 are eccentrically arranged, that is, the central axis of the lower guide wheel 14 and the mounting hole 22 are not in the same straight line, and the central axis of the lower guide wheel 14 is preferably close to one side of the hinged position of the mounting plate 23, so that the integral side-turning discharge chute 16 of the lower guide wheel 14 can be realized by using the mounting hole 22 with a smaller caliber, the structure is more compact, the material is saved, the weakening of the strength of the chute 16 caused by the opening can be reduced, when the lower guide wheel 14 needs to be overhauled, the lower guide wheel is turned out of the chute 16 of the conveyor by rotating the mounting plate 23, the treatment can be carried out, a worker does not need to carry tools to enter the conveyor for treatment, the maintenance of the scraper conveyor is greatly facilitated, and the safety of the overhaul and maintenance operation flow is improved.

In this embodiment, the lower guide wheel 14 is provided with a plurality of sealing measures, except for the lip-shaped sealing ring, the o-shaped ring and the labyrinth ring, a strand of clean washing water is introduced, the clean washing water is used for washing the labyrinth ring from the inside of the shaft, clean water is used for replacing sewage, the lower guide wheel 14 in accumulated water in the trough 16 is prevented from being damaged by particles, the sewage enters the bearing cavity, and therefore lubricating grease is prevented from losing efficacy.

Example 5 of a scraper conveyor for a specific decoking system of the present invention:

different from the above embodiments, 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 the tensioning device for preventing the scraper chain 17 from being detached from the chain, the tensioning device comprises 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 comprises 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 so as to tension the scraper chain 17, compared with the existing tensioning device and driving device, the shafts are respectively arranged on the machine body, so that the overhaul and maintenance workload of the conveyor is reduced, the holes on the machine body are reduced, and the strength of the machine body is enhanced, the maintenance of the scraper conveyor is facilitated, and the practicability of the scraper conveyor is improved.

When the driving device of this embodiment is specifically installed, a second supporting seat 2503 is fixedly disposed on the machine body, a fixing plate 2501 is hinged to the second supporting seat 2503 through a second pin 2502, the hydraulic motor 25 is fixed on the fixing plate 2501, the output shaft of the hydraulic motor 25 is provided with a driving shaft 2504, the driving wheel 1 is arranged on the driving shaft 2504, the hydraulic motor 25 drives the driving shaft 2504 to drive the driving wheel 1 to rotate, as shown in fig. 11, the installation diagram of the tail wheel 8 is shown, a driven shaft 802 is fixed to the machine body through a first support 804 provided opposite to the driven shaft, and the tail wheels 8 are respectively provided at both ends close to the driven shaft 802, specifically, the tail wheels 8 are respectively fixed to the driven shaft 802 through a floating end bearing 801 provided at one end and a fixed end bearing 803 provided at the other end, and automatic grease injectors 805 for maintaining the pressure in the bearing cavities are respectively provided on the floating 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 too far by the hydraulic cylinder 29 is arranged on the guide rail 28 in the moving direction of the piston rod far away from the hydraulic cylinder 29, and after 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 change and modification made to the above embodiments according to the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. The utility model provides a decoking is scraper conveyor for system, includes the organism, and the head of organism is equipped with by drive arrangement driven action wheel (1), and the afterbody of organism is equipped with tailwheel (8), and the cover is equipped with scraper chain (17) between action wheel (1) and tailwheel (8), is equipped with scraper blade (19) between scraper chain (17), its characterized in that:

the machine body is provided with a closed trough (16) for driving a coke-water mixture to move by a scraper chain (17) and a scraper (19), and a feed inlet (4) for feeding into the trough (16) is formed in a cover plate (5) at the top of the trough (16);

the working section of the scraper chain (17) is guided by corresponding guide wheels and arranged at the bottom of the trough (16), a water outlet (11) which is higher than the bottom surface of the trough (16) is arranged on a side plate (6) of the trough (16), so that water which can submerge the working section of the scraper chain (17) and provide buoyancy for coke is reserved in the trough (16) while coke and water are separated;

and the return section of the scraper chain (17) is supported by a riding wheel (15) and is arranged at the top of the trough (16) and positioned at two sides of the feed port (4).

2. The scraper conveyor for decoking system as claimed in claim 1, wherein said drain opening (11) is spaced from the bottom of the side plate (6) by 0.4-0.6m, and a catchment opening (13) for draining the accumulated water in the trough (16) is provided near the bottom of the side plate (6).

3. The scraper conveyor for decoking system as claimed in claim 1, wherein said discharge opening (11) is provided with a Johnson net (30) for preventing the slag particles from being discharged from the trough (16) with the coke cutting water.

4. The scraper conveyor for decoking system as set forth in claim 3, wherein said side plates (6) are provided with a frame body (3001) corresponding to each Johnson net (30), a sealing plate (3003) enclosing said frame body (3001) into a sealed cavity (3002) is detachably mounted on the frame body, and a water outlet (3004) communicating with said cavity for pipe connection is provided on the frame body.

5. The scraper conveyor for decoking system as claimed in claim 1, wherein the side plate (6) is further provided with an inclined plate (601) disposed obliquely and a vertical plate (602) vertically fixed on the inclined plate (601), the inclined plate (601) and the vertical plate (602) make the cross section of the trough (16) have a large top and a small bottom, and the cover plate (5) is detachably fixed on the vertical plate (602).

6. The scraper conveyor for decoking system as set forth in claim 5, wherein said risers (602) are provided with brackets (21) for mounting said riding wheels (15), and the brackets (21) enclose an open-bottomed receiving cavity (603) with the risers (602) and the cover (5).

7. The scraper conveyor for the decoking system as claimed in claim 1, wherein the head of the machine body is higher than the tail, a lower guide wheel (14) and an upper guide wheel (3) which are convenient for the scraper chain (17) to turn are arranged in the trough (16), the scraper chain (17) in the trough (16) is divided into a horizontal conveying section and an oblique conveying section by the lower guide wheel (14) and the upper guide wheel (3), so that the scraper chain (17) drives the scraper (19) to drive the coke after water and coke separation to enter the oblique conveying section from the horizontal conveying section, and separation of the coke from accumulated water in the trough (16) is realized.

8. The scraper conveyor for decoking system as set forth in claim 7, wherein 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 provided in correspondence with the mounting hole (22), and the mounting plate (23) is hinged to the side plate (6) to drive the lower guide wheel (14) to roll laterally into and out of the mounting hole (22).

9. The scraper conveyor for decoking system as claimed in claim 1, wherein the body is provided with a tensioner for preventing the scraper chain (17) from being detached, the tensioner comprises a bearing seat (26) movably disposed on the body along the moving direction of the coke-water mixture, the driving wheel (1) is rotatably mounted in the bearing seat (26), the driving device comprises a hydraulic motor (25) hinged on the body for driving the driving wheel (1) to rotate, and the 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).

10. The scraper conveyor for decoking system as claimed in claim 9, wherein said hydraulic motor (25) is fixed to a fixed plate (2501) connected to the machine body by a second pin (2502), the machine body being provided with a guide rail (28) along the moving direction of the coke-water mixture, said bearing block (26) being slidably mounted on said guide rail (28).