CN209772364U - Full-sealed slag discharging device of rotary hydraulic cart top coal mill - Google Patents
Full-sealed slag discharging device of rotary hydraulic cart top coal mill Download PDFInfo
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- CN209772364U CN209772364U CN201920161595.7U CN201920161595U CN209772364U CN 209772364 U CN209772364 U CN 209772364U CN 201920161595 U CN201920161595 U CN 201920161595U CN 209772364 U CN209772364 U CN 209772364U
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- 239000003245 coal Substances 0.000 title claims abstract description 110
- 239000002893 slag Substances 0.000 title claims abstract description 106
- 238000007599 discharging Methods 0.000 title claims abstract description 57
- 238000007789 sealing Methods 0.000 claims abstract description 91
- 239000003818 cinder Substances 0.000 claims abstract description 42
- 239000013049 sediment Substances 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 12
- 239000010883 coal ash Substances 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 9
- 239000004575 stone Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model provides a totally enclosed slag discharging device of a rotary hydraulic cart top coal mill, which relates to the technical field of power plant coal mills and can solve the problems of internal leakage and external leakage caused by the poor sealing of the valve of the traditional slag discharging system and the flying of coal ash and dust in the slag discharging process; the device comprises a slag discharging pipe assembly, a rack assembly and a coal slag box assembly; the lower end of the slag discharging pipe assembly is connected with the rack assembly; the cinder box subassembly is located the below of frame subassembly, just the top of cinder box subassembly with frame subassembly detachable sealing connection. The utility model provides a technical scheme is applicable to the in-process of row's sediment of power plant's coal pulverizer.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a coal pulverizer technical field of power plant especially relates to a rotation type hydraulic pressure shallow pushes up formula coal pulverizer totally enclosed row's sediment device.
[ background of the invention ]
In the operation of medium speed coal mills in power plants, there is some particulate material that is difficult to grind, which is called pebble coal. In the process of grinding coal by the medium-speed coal mill, pebble coal can be separated and enters a pebble coal slag box on the lower side of the medium-speed coal mill, a slag discharge valve is arranged on a pebble coal slag discharge pipe and used for keeping temporary sealing in the medium-speed coal mill when no material is discharged, the medium-speed coal mill is intermittently opened in the operation process, and the pebble coal passes through the discharge valve and enters the slag box. The discharged pebble coal needs to be sent to an outdoor ash field from a factory building on the site of the medium-speed coal mill.
In the existing running coal mill systems, a buffer box type in-situ slag discharging system is mostly adopted, namely an upper slag discharging valve, a buffer slag storage box, a lower slag discharging valve and an open type slag discharging vehicle are sequentially arranged at a slag outlet of the coal mill, and the slag discharging mode is open type in-situ discharging and manual clearing. Due to the fact that stone coal is seriously dusted in the last slag discharging and transferring processes, the working conditions in a factory are very severe, and the environmental sanitation and safe and civilized production of a power plant are seriously affected. In addition, the coal mill runs for a long time and the slag discharge valve is frequently opened, so that the common slag discharge valve is seriously abraded, the internal leakage and the external leakage are common, a large amount of dust is leaked out, the surrounding environment is seriously polluted, and the safety and the service life of equipment are reduced. The existing buffer slag storage box in-situ slag discharging system has the following defects:
1. the common single-plug-board type slag discharging valve and the common double-plug-board type slag discharging valve have low wear resistance, poor sealing performance and easy internal leakage and external leakage after being used for a period of time. Meanwhile, in the deslagging process of the coal mill, pebble coal is easy to block at dead corners of the deslagging valve, so that the deslagging valve is not closed tightly, the surrounding environment is polluted, and the equipment maintenance cost is increased.
2. Because the coal mill runs for a long time, the volume of the buffer slag storage box is smaller, and the slag discharge valve needs to be opened and closed frequently during the running of the coal mill, the valve is seriously abraded, and the internal leakage and the external leakage are easy to occur. When the dust leaks out, the dust directly leaks out of the valve; when the valve is closed, the stone cannot be prevented from being continuously discharged from the coal even if the valve is closed, if the slag discharging vehicle is not in time to receive the materials, part of stone coal is directly discharged to the ground, so that the follow-up work is influenced, and the environment is seriously polluted by dust raised due to the leakage of the valve, which is an important reason for the pollution of the existing work site.
3. pebble coal discharged from a slag outlet of the buffering slag storage box is discharged on the spot in an open mode, and a large amount of high-temperature dust is carried by the discharged materials, so that dust flies in the slag discharging process, and environmental pollution and potential safety hazards are caused. This is the main cause of contamination in existing work sites.
4. the valve and the flange are connected from the slag discharging port of the coal mill to the slag box, and the interior of the slag box is in non-smooth continuous connection, so that when foreign matters exist in the slag discharging process, a slag discharging pipeline is blocked, flooding is caused when the foreign matters are not found in time, and more serious accidents can be caused. Foreign matters in the slag discharge pipe are removed, and the coal mill needs to stop running. The normal operation of the coal mill is seriously influenced, and the operation cost is increased.
Due to the phenomenon, equipment in a factory building is in a severe dust environment for a long time, and an electric appliance control system, various pneumatic valves, electromagnetic valves and hydraulic valves are easy to damage and have high failure rate, so that the maintenance cost is increased. Meanwhile, the working environment seriously harms the personal health of workers in the factory. Therefore, the requirement is to provide a novel hydraulic overhead type cart tilting pebble coal sealing discharge device which can fundamentally solve the problem of on-site discharge of pebble coal.
[ Utility model ] content
In view of this, the utility model provides a rotation type hydraulic pressure shallow roof formula coal pulverizer totally enclosed row sediment device, simple structure, convenient operation, low in labor strength, work efficiency is high, can solve the interior hourglass that traditional slag discharge system valve seal caused not tight and leak outward, the phenomenon that row's sediment process coal ash dust flies upward.
On the one hand, the utility model provides a rotation type hydraulic pressure shallow pushes up formula coal pulverizer totally enclosed row sediment device, its characterized in that:
Comprises a slag discharging pipe component, a frame component and a coal slag box component;
The lower end of the slag discharging pipe assembly is connected with the rack assembly; the cinder box subassembly is located the below of frame subassembly, just the top of cinder box subassembly with frame subassembly detachable sealing connection.
the above aspects and any possible implementation further provide an implementation, where the deslagging pipe assembly includes a material receiving port and a connecting pipe; one end of the material receiving port is connected with a material outlet of the coal mill, the other end of the material receiving port is connected with one end of the connecting pipe, and the other end of the connecting pipe is connected with the rack assembly; and the connecting pipe is sequentially provided with a gate valve and a rotary valve.
according to the above aspect and any possible implementation manner, there is further provided an implementation manner, wherein a valve seat of the gate valve is fixed on a pipe wall of the connecting pipe, and the gate is connected with a gate power mechanism; the valve seat of the rotary valve is arranged on the pipe wall of the connecting pipe, the valve core is arranged in the valve seat, and the valve core is connected with the rotary power mechanism.
The above aspect and any possible implementation further provide an implementation in which the connecting tube is at an acute angle of 45 ° to 75 ° with the frame sealing plate.
the above aspects and any possible implementations further provide an implementation, where the rack assembly includes a rack, and a rack sealing plate is disposed on a top of the rack; a slag inlet hole, a level indicator hole and a level indicator bracket are arranged on the frame sealing plate; the lower end of the slag discharging pipe assembly is hermetically connected with the slag inlet hole; a charge level indicator power mechanism is arranged on the charge level indicator support, a charge level indicator sealing ring is arranged at the lower end of the charge level indicator power mechanism, and a charge level indicator is arranged below the charge level indicator sealing ring; the charge level indicator sealing ring is opposite to and matched with the charge level indicator hole in a sealing way; the frame sealing plate is detachably and hermetically connected with the cinder box component.
In accordance with the above aspect and any possible implementation manner, there is further provided an implementation manner, wherein two sides of the rack are respectively provided with a guiding device; a first limiting block is arranged below the rear portion of the frame sealing plate.
The above aspect and any possible implementation manner further provide an implementation manner, wherein a pressure relief mechanism and a spraying mechanism are further arranged on the rack sealing plate; the spraying mechanism is connected with an external water storage mechanism through a water supply pipe, and a water supply control valve is arranged on the water supply pipe.
The above aspects and any possible implementation manners further provide an implementation manner, wherein the rack sealing plate is further provided with a plurality of locking devices, each locking device comprises a locking main shaft, and one end of each locking main shaft is connected with the rack sealing plate; a semicircular plate which is parallel to and attached to the frame sealing plate is arranged on the locking main shaft, and an adjusting wire is arranged on the semicircular plate in a penetrating manner; a nut is arranged below the semicircular plate and is in threaded connection with the locking main shaft; the bottom of nut is equipped with the retaining member.
The above aspects and any possible implementations further provide an implementation in which the cinder box assembly includes a mobile bracket and a box body, the box body being disposed on the mobile bracket; the bottom of the movable support is provided with a pulley; the top of the box body is opened and is detachably connected with the rack assembly in a sealing manner; the front wall of the box body is provided with a handle and a second limiting block, the second limiting block is inserted into a limiting mechanism, and the limiting mechanism is arranged at the front end of the movable support.
In the aspect and any possible implementation manner described above, there is further provided an implementation manner, wherein the left and right side walls of the box body are respectively provided with a balance structure; the balance structure comprises a balance shaft and a balance shaft seat, the balance shaft seat is arranged in the middle of the side wall of the box body, the balance shaft is arranged on the outer side of the balance shaft seat, and the balance shaft seat is rotatably connected with the balance shaft.
Compared with the prior art, the utility model discloses can obtain including following technological effect: the slag discharging device is simple in structure, convenient to operate, low in labor intensity and high in working efficiency; the problems of internal leakage and external leakage caused by poor sealing of the valve of the traditional slag discharge system and flying of coal ash and dust in the slag discharge process can be solved.
Of course, it is not necessary for any product of the present invention to achieve all of the above-described technical effects simultaneously.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fully-sealed slag discharge device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention;
Fig. 2 is a working structure diagram of a fully-sealed slag discharging device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a slag discharge pipe assembly of a fully-sealed slag discharge device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention;
fig. 4(a) and (b) are a front view and a side view of a frame assembly of a fully sealed slag discharging device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention;
Fig. 5(a) and (b) are a front view and a side view of a coal slag tank assembly of a fully-sealed slag discharging device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention;
Fig. 6 is a schematic diagram illustrating an inverted state of a coal slag tank assembly of the fully-sealed slag discharging device of the rotary hydraulic cart top coal mill according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of a locking device of a coal slag tank assembly of a fully-sealed slag discharging device of a top coal mill of a rotary hydraulic cart according to an embodiment of the present invention.
Wherein:
A slag discharge pipe assembly 1; a material receiving port 1-1; 1-2 of a gate valve; rotating the valve 1-3; connecting pipes 1-4; a rack assembly 2; a frame 2-1; a frame sealing plate 2-2; 2-3 of a sealing ring; 2-4 of a locking device; a first limiting block 2-5; 2-6 of a pressure relief device; a guide 2-7; 2-8 parts of a level indicator bracket; 2-9 parts of a level indicator; 2-10 parts of a charge level indicator sealing ring; 2-11 parts of a spraying device; a cinder box assembly 3; a sealing plate 3-1; 3-2 of a box body; 3-3 of a balance shaft; 3-4 parts of a balance shaft seat; 3-5 of a buffer device; 3-6 of an observation window; 3-7 of a second limiting block; 3-8 parts of a handle; 3-9 of a movable support; a hydraulic manual transportation vehicle 4; a control cabinet 5; 2-4-1 of a semicircular plate; locking the main shaft 2-4-2; adjusting 2-4-3 of silk; 2-4-4 of a nut; 2-4-5 of a buffer pad; and 2-4-6 of a fixing bolt.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
the terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Fig. 1 and fig. 2 are schematic views illustrating the structure and the working state of a fully-sealed slag discharging device of a top coal mill of a rotary hydraulic cart according to an embodiment of the present invention. As shown in fig. 1 and 2, a fully sealed slag discharging device of a rotary hydraulic cart top coal mill comprises a slag discharging pipe assembly 1, a frame assembly 2, a coal slag box assembly 3 and auxiliary tools, wherein the upper end of the slag discharging pipe assembly 1 is connected with an outlet of the coal mill, the lower end of the slag discharging pipe assembly is respectively connected with the frame assembly 2, and the slag discharging pipe assembly 1 is supported and fixed by the frame assembly 2 and is not easy to move; the cinder box subassembly 3 is located the inside of frame subassembly 2, and the top and the frame subassembly 2 detachable sealing connection of cinder box subassembly 3. The auxiliary tool is mainly used for moving the cinder box assembly 3 and assisting the cinder box assembly 3 to be assembled with other parts of the slag discharging device. The auxiliary tool is a hydraulic manual transport vehicle 4. The cinder box assembly 3 is arranged above the hydraulic manual transport vehicle 4.
Fig. 3 is a schematic structural view of a slag discharge pipe assembly of a fully-sealed slag discharge device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention. As shown in FIG. 3, the slag discharging pipe assembly 1 comprises a material receiving port 1-1 and a connecting pipe 1-4; one end of the material receiving port 1-1 is connected with a material outlet of the coal mill, the other end of the material receiving port is connected with one end of a connecting pipe 1-4, and the other end of the connecting pipe 1-4 extends obliquely downwards and is connected with a rack sealing plate 2-2 of the rack assembly 2. The connecting pipe 1-4 is at an acute angle, preferably 45 degrees or 60 degrees, with the frame sealing plate 2-2. The connecting pipe 1-4 is sequentially provided with a gate valve 1-2 and a rotary valve 1-3, the gate valve 1-2 is a wear-resistant ceramic gate valve, a valve seat of the gate valve 1-2 is fixed on the pipe wall of the connecting pipe 1-4, the gate plate is connected with a first pneumatic mechanism, the first pneumatic mechanism is connected with a first pneumatic solenoid valve, and the movement of the gate plate is controlled by the first pneumatic solenoid valve to control the opening and closing of the gate valve 1-2. The rotary valves 1-3 are wear-resistant ceramic rotary valves. The valve seat of the rotary valve is arranged on the pipe wall of the connecting pipes 1-4, the valve core is arranged in the valve seat and connected with a second pneumatic mechanism arranged outside the rotary valve, the second pneumatic mechanism is connected with a second pneumatic electromagnetic valve, and the valve core is controlled to rotate through the electromagnetic valve so as to control the rotary valve to be opened and closed. The first pneumatic mechanism and the second pneumatic mechanism are both general pneumatic actuators which are commercially available.
The gate valve 1-2 is a standby valve and is in a normally open state under normal conditions, and the operation of the whole set of equipment is not influenced. When the rotary valve 1-3 breaks down, the gate valve 1-2 can be immediately used, so that the safety and reliability of equipment operation are greatly improved. The sealing pairs of the two valves are made of zirconia composite ceramic materials, so that the surface smoothness is high, the sealing is tight, the wear resistance is good, compared with the valves made of common metals, hard alloys and other materials as the sealing pairs, the wear resistance degree is greatly improved, the service life of the valves is 3-5 times that of the common valves, and the service life of the valves is as long as more than 30000 hours. The gate valve is selected to be HNDSPC-669TC DN250, and the rotary valve is selected to be HNDSPC-665TC DN 250.
Fig. 4(a) and (b) are a front view and a side view of a frame assembly of a fully-sealed slag discharging device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention. As shown in fig. 4(a) and (b), the rack assembly 2 includes a rack 2-1, and the rack 2-1 includes four support legs for supporting and fixing, the four support legs forming a square shape, and the tops thereof are fixedly connected to each other by a connecting member. A frame sealing plate 2-2 is arranged below the connecting piece, and a slag inlet hole and a material level meter hole are arranged on the frame sealing plate 2-2. The lower end of a connecting pipe 1-4 of the slag discharging pipe component is hermetically connected with the slag inlet hole through a sealing element. A material level meter support 2-8 is arranged above the connecting pieces at the tops of the four support legs, a material level meter pneumatic mechanism is arranged on the material level meter support 2-8, a material level meter sealing ring 2-10 is arranged at the lower end of the material level meter pneumatic mechanism, and a material level meter 2-9 is arranged below the material level meter sealing ring 2-10. The level indicator 2-9 is a pneumatic rotation-resistant level indicator. The tail end of a cylinder of a pneumatic mechanism of the charge level indicator is fixed on the charge level indicator support 2-8, and the charge level indicator is connected with the cylinder through screws. The third pneumatic solenoid valve is arranged on the air cylinder pipeline, and the air supply part is communicated with the air cylinder when the pipeline is opened by the third pneumatic solenoid valve. The size of the sealing ring 2-10 of the level gauge is matched with that of the hole of the level gauge. When the coal mill is used for deslagging, the charge level indicator 2-9 and the charge level indicator sealing ring 2-10 move downwards under the cooperation effect of the third pneumatic solenoid valve and the air cylinder until the charge level indicator sealing ring 2-10 is in sealing contact with the charge level indicator hole. The level indicator probe extends into the tipping rotary stone box through a hole on the sealing plate to detect the change of the height of the piled stone coal during slag discharge, and when the stone coal in the tipping stone coal box reaches a certain height, the level indicator detection mechanism sends out an acoustic and optical alarm signal to remind a supervisor to urge a worker.
The four support legs are respectively provided with a guide device 2-7 between the two support legs on the left side and between the two support legs on the right side, and the guide devices are used for playing a role in guiding the coal cinder box component 3 when being pushed into or pulled out of the rack component 2, so that the accurate positioning of the coal cinder box component 3 is facilitated. The four support legs are square and provided with four side faces, two side faces without the guide device are provided, one side face is used for the entrance and exit of the cinder box component 3, and the other side face is provided with a first limiting block 2-5, namely the first limiting block 2-5 is arranged at the rear lower side of the frame sealing plate 2-2 and used for limiting the rear side positioning of the cinder box component 3, so that the position of the box body is more accurate when the box body is jacked up, and the sealing effect is ensured.
The frame sealing plate 2-2 is also provided with a pressure relief device 2-6 and a spray device 2-11. The pressure relief device 2-6 is used for exhausting and reducing pressure when the air pressure in the cinder box 3 is overlarge. The spraying devices 2-11 are provided with valves which can be opened and closed, and the spraying devices 2-11 are connected with an external water storage mechanism and used for spraying and supplying water. The lower surface of the frame sealing plate 2-2 is provided with a sealing ring 2-3, the shape and the size of the sealing ring 2-3 are matched with those of the cinder box, and the sealing ring is used for sealing when the cinder box assembly is connected with the frame sealing plate 2-2, so that the cinder box is free of air leakage and ash leakage.
Fig. 5(a) and (b) are a front view and a side view of a coal slag tank assembly of a fully-sealed slag discharging device of a rotary hydraulic cart top coal mill according to an embodiment of the present invention. As shown in fig. 5(a) and (b), the cinder box assembly 3 includes a moving bracket 3-9 and a box body 3-2, and the box body 3-2 is disposed on the moving bracket 3-9. The bottom of the movable support 3-9 is provided with a pulley which can rotate to move the box body. Sealing plates 3-1 are arranged on four walls in the box body 3-2 to ensure the sealing degree of the box body. An observation window 3-6 is arranged on the front wall of the box body 3-2 and used for manually observing the conditions in the box body. The front wall of the box body 3-2 is also provided with a handle 3-8 and a second limiting block 3-7, the second limiting block 3-7 is in a strip shape and is inserted into a limiting mechanism, and the limiting mechanism is arranged at the front end of the movable support 3-9. When the coal cinder box works, the box body is arranged under the frame sealing plate 2-2, and the box body is lifted by the aid of an auxiliary tool, so that the box body 3-2 and the frame sealing plate 2-2 are connected in a sealing mode to form the sealed coal cinder box. Due to the action of the second limiting blocks 3-7 and the limiting mechanism, the positions of the box body and the movable support are not deviated horizontally, and the positioning is accurate.
The side wall of the box body 3-2 is provided with a balance structure, the balance structure comprises a balance shaft 3-3 and a balance shaft seat 3-4, and the balance shaft seat 3-4 is arranged in the middle of the left side wall and the right side wall of the box body. The two balance shafts 3-3 are respectively arranged at the outer sides of the balance shaft seats, and the corresponding balance shaft seats are rotatably connected with the balance shafts. When the cinder is poured, the box body can rotate along the balance shaft, so that the cinder can be conveniently poured. The side wall of the box body 3-2 is also provided with a buffer device 3-5, as shown in figure 6, when the box body 3-2 rotates 18 degrees along the balance shaft and is in a turnover state, the buffer device 3-5 can play a role in buffering impact force when the box body 3-2 is contacted with the movable support 3-9, so that the service lives of the box body and the movable support are protected.
When the coal mill normally operates, the tipping type cinder box 3 is pushed to the position under the frame sealing plate 2-2 by using the hydraulic manual carrying vehicle, the cinder box 3 is accurately positioned under the guiding of the guiding device 2-7 and the action of the first limiting block 2-5 at the back, then the cinder box is jacked up by using the hydraulic manual carrying vehicle 4 which is an auxiliary tool arranged under the cinder box, and the sealing plate 3-1 is contacted with and sealed by the sealing strip 2-3 arranged below the frame sealing plate 2-2. The tipping type cinder box 3 and the frame sealing plate 2-2 are locked by the manual locking device 2-4, and the coal mill can enter a deslagging state at the moment.
The manual locking device 2-4 is fixedly connected with the lower surface of the frame sealing plate 2-2, after the hydraulic manual transport vehicle seals the top of the coal cinder box assembly in a high-pressure sealing mode, the locking device 2-4 is used for locking the coal cinder box assembly, so that the coal cinder box assembly is firmly connected with the frame sealing plate, and then the hydraulic manual transport vehicle can be loosened to prolong the service life of the hydraulic flatcar oil cylinder. The specific structure of the locking device 2-4 is shown in fig. 7, and comprises a locking main shaft 2-4-2, one end of the locking main shaft 2-4-2 is provided with a fixing bolt 2-4-6, and the fixing bolt 2-4-6 is connected with a frame sealing plate 2-2 through a bolt. The locking main shaft 2-4-2 is sequentially provided with a cushion pad 2-4-5, a semicircular plate 2-4-1 and a nut 2-4-4 from top to bottom. The buffer pad 2-4-5 is arranged between the semicircular plate 2-4-1 and the frame sealing plate 2-2 to play a role in buffering. The semicircular plate 2-4-1 is provided with an adjusting wire 2-4-3, the adjusting wire is of a bolt structure, and a nut is rotated to enable a bolt column to pass through the semicircular plate 2-4-1 to be attached to or separated from the rack sealing plate 2-2, so that the secondary fixing effect is achieved. The bottom end of the nut 2-4-4 is provided with a horizontal locking piece, the locking piece changes in the longitudinal and horizontal upward positions along with the rotation of the nut 2-4-4, and can be inserted into the hollow part on the periphery of the top of the box body 3-2 or staggered with the hollow part to be moved out, so that the box body 3-2 is locked upwards and loosened when coal cinder is poured, and the box body is smoothly moved out downwards.
The slag discharging device also comprises a control cabinet 5, wherein an operation control system of the slag discharging device is arranged in the control cabinet 5, and a pneumatic electromagnetic valve, a material level alarm mechanism and an air cylinder lifting control mechanism are respectively arranged to control the slag discharging device to be opened or closed, lifted or lowered timely and accurately. The first pneumatic solenoid valve, the second pneumatic solenoid valve and the third pneumatic solenoid valve can be arranged on a gate valve, a rotary valve and a level indicator accessory and can also be uniformly arranged inside the control cabinet 5. The control cabinet 5 is connected with the slag discharging pipe assembly 1 and the rack assembly 2 through a gas pipeline and a connecting line and is used for controlling the actions of pneumatic components on the slag discharging pipe assembly 1 and the rack assembly 2 and realizing the function of material level alarm. And a control panel is arranged on the control cabinet 5, and a plurality of buttons and indicator lamps are arranged on the control panel and used for controlling corresponding parts and indicating each state of the slag discharging device. The control cabinet 5 controls the gate valve 1-2, the rotary valve 1-3 and the loading level indicator 2-9 of the slag discharging pipe assembly 1 by controlling the pneumatic electromagnetic valve. The types of the first pneumatic electromagnetic valve, the second pneumatic electromagnetic valve and the third pneumatic electromagnetic valve have no special requirements, and the on-off of a single gas pipeline can be realized.
When the coal mill needs to discharge slag, a rotary valve opening button on a panel of the control cabinet 5 is operated, and the rotary valves 1-3 are opened. Firstly, a pneumatic mechanism drives a rotation-resistant level indicator 2-9 to move downwards, a probe of the level indicator extends into a box body 3-2 of the tipping type cinder box through a hole on a frame sealing plate 2-2, and a sealing strip 2-10 of the level indicator interacts with the frame sealing plate 2-2 and is sealed; the rotary valve 1-3 is then opened. The pebble coal cinder freely slides into a box body 3-2 of a tipping type cinder box under a sealing plate 2-2 of a rack along a material receiving port 1-1 through a gate valve 1-2, a rotary valve 1-3 and a connecting pipe 1-4, as shown in figure 3.
When the pebble coal is accumulated to a preset height in the tipping rotary coal slag box 3, a material level alarm mechanism in the control cabinet sends out sound and light alarm signals to remind the staff that the pebble coal is full.
After the level indicator sends out an alarm signal, the control cabinet 5 controls the rotary valves 1-3 to be closed, the pressure relief devices 2-6 automatically discharge the pressure in the tipping rotary type coal slag box, then the pneumatic mechanism drives the level indicator 2-9 to move upwards, and the end face of the level indicator is separated from the frame sealing plate 2-1.
And moving the handle of the manual locking device 2-4 anticlockwise to release the locking of the box body 3-2 of the tipping type cinder box and the sealing plate 2-2 of the rack. The box body 3-2 of the tipping type cinder box is descended to the ground by a hydraulic manual carrying vehicle 4 to 0 meter and then pulled out. The tipping rotary type coal slag box is moved to a tipping point, so that the whole course closed discharge of the pebble coal is realized.
In the process of normally discharging the pebble coal by the coal mill, when the temperature of the pebble coal in the tipping rotary pebble slag box is too high to spontaneously combust, the spraying devices 2 to 11 can be manually (or automatically) opened to spray water into the coal slag box 3, so that the spontaneous combustion of the pebble coal is prevented.
A spraying device is arranged on a frame sealing plate 2-2 of the hydraulic trolley capable of tilting the pebble coal sealing and discharging device. When pebble coal is spontaneously combusted in the slag box, water can be sprayed into the slag box through the spraying device, and the spontaneous combustion accident of the pebble coal is avoided. The pressure relief device is arranged on the frame sealing plate, the internal pressure of the system is discharged through the pressure relief device, and the filter screen eliminates dust, so that the purpose of cleaning the environment is achieved.
the hydraulic overhead cart can tilt and turn the pebble coal sealed discharge device, changes the original mode of discharging the pebble coal on site into a full-sealed coal mill pebble coal collecting device, and has the advantages of simple operation, safety, reliability and low labor intensity. Because the problems of inner leakage and outer leakage in the deslagging process of the coal mill are solved, the working environment is cleaner, the service life of the equipment is prolonged, and the maintenance cost of the equipment is reduced. The closed slag discharging device is simple in structure, reasonable and compact in layout, simple in implementation process and free of changing the layout of any equipment in a plant, the original structure of a coal mill and any equipment foundation, and the transformation of a target is realized.
The fully-sealed slag discharging device for the rotary hydraulic cart top coal mill provided by the embodiment of the application is described in detail above. The above description of the embodiments is only for the purpose of helping to understand the method of the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
As used in the specification and claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
it is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. The utility model provides a rotation type hydraulic pressure shallow pushes up full-sealed row's sediment device of formula coal pulverizer, its characterized in that:
Comprises a slag discharging pipe component, a frame component and a coal slag box component;
The lower end of the slag discharging pipe assembly is connected with the rack assembly; the cinder box subassembly is located the below of frame subassembly, just the top of cinder box subassembly with frame subassembly detachable sealing connection.
2. The rotary hydraulic cart top coal mill full-sealed slag discharge device of claim 1, wherein the slag discharge pipe assembly comprises a receiving port and a connecting pipe; one end of the material receiving port is connected with a material outlet of the coal mill, the other end of the material receiving port is connected with one end of the connecting pipe, and the other end of the connecting pipe is connected with the rack assembly; and the connecting pipe is sequentially provided with a gate valve and a rotary valve.
3. The rotary hydraulic cart top coal mill full-sealing slag discharge device as claimed in claim 2, wherein a valve seat of the gate valve is fixed on a pipe wall of the connecting pipe, and the gate is connected with a gate power mechanism; the valve seat of the rotary valve is arranged on the pipe wall of the connecting pipe, the valve core is arranged in the valve seat, and the valve core is connected with the rotary power mechanism.
4. The rotary hydraulic cart top coal mill full seal deslagging apparatus of claim 2, wherein said frame assembly includes a frame, a frame sealing plate being provided on top of said frame; a slag inlet hole, a level indicator hole and a level indicator bracket are arranged on the frame sealing plate; the lower end of the slag discharging pipe assembly is hermetically connected with the slag inlet hole; a charge level indicator power mechanism is arranged on the charge level indicator support, a charge level indicator sealing ring is arranged at the lower end of the charge level indicator power mechanism, and a charge level indicator is arranged below the charge level indicator sealing ring; the charge level indicator sealing ring is opposite to and matched with the charge level indicator hole in a sealing way; the frame sealing plate is detachably and hermetically connected with the cinder box component.
5. The fully sealed slagging device of the rotary hydraulic cart topping coal mill of claim 4 wherein the acute angle between the connecting pipe and the frame sealing plate is 45 ° -75 °.
6. The fully-sealed deslagging device of the rotary hydraulic cart top coal mill according to claim 4, wherein two sides of the frame are respectively provided with a guiding device; a first limiting block is arranged below the rear portion of the frame sealing plate.
7. The fully-sealed slag discharge device for the rotary hydraulic cart top coal mill according to claim 4, wherein a pressure relief mechanism and a spraying mechanism are further arranged on the frame sealing plate; the spraying mechanism is connected with an external water storage mechanism through a water supply pipe, and a water supply control valve is arranged on the water supply pipe.
8. The fully-sealed deslagging device of the rotary hydraulic cart top coal mill according to claim 4, wherein a plurality of locking devices are further arranged on the frame sealing plate, each locking device comprises a locking main shaft, and one end of each locking main shaft is connected with the frame sealing plate; a semicircular plate which is parallel to and attached to the frame sealing plate is arranged on the locking main shaft, and an adjusting wire is arranged on the semicircular plate in a penetrating manner; a nut is arranged below the semicircular plate and is in threaded connection with the locking main shaft; the bottom of nut is equipped with the retaining member.
9. The rotary hydraulic cart top coal mill full seal slagging apparatus of claim 1, wherein the coal slag tank assembly comprises a mobile bracket and a tank, the tank being disposed on the mobile bracket; the bottom of the movable support is provided with a pulley; the top of the box body is opened and is detachably connected with the rack assembly in a sealing manner; the front wall of the box body is provided with a handle and a second limiting block, the second limiting block is inserted into a limiting mechanism, and the limiting mechanism is arranged at the front end of the movable support.
10. The fully-sealed deslagging device of the rotary hydraulic cart top coal mill according to claim 9, wherein a balancing structure is respectively arranged on the left side wall and the right side wall of the box body; the balance structure comprises a balance shaft and a balance shaft seat, the balance shaft seat is arranged in the middle of the side wall of the box body, the balance shaft is arranged on the outer side of the balance shaft seat, and the balance shaft seat is rotatably connected with the balance shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920161595.7U CN209772364U (en) | 2019-01-30 | 2019-01-30 | Full-sealed slag discharging device of rotary hydraulic cart top coal mill |
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| CN201920161595.7U CN209772364U (en) | 2019-01-30 | 2019-01-30 | Full-sealed slag discharging device of rotary hydraulic cart top coal mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951604A (en) * | 2022-06-01 | 2022-08-30 | 滨州戴森车轮科技有限公司 | Slag removing device for hub low-pressure casting machine |
-
2019
- 2019-01-30 CN CN201920161595.7U patent/CN209772364U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951604A (en) * | 2022-06-01 | 2022-08-30 | 滨州戴森车轮科技有限公司 | Slag removing device for hub low-pressure casting machine |
| CN114951604B (en) * | 2022-06-01 | 2024-04-26 | 滨州戴森车轮科技有限公司 | Slag skimming device for hub low-pressure casting machine |
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Inventor after: Duan Lina Inventor after: Zhao Yunhui Inventor after: Hao Xiaoyan Inventor after: Zhao Xing Inventor before: Duan Lina Inventor before: Zhao Yunhui Inventor before: Hao Xiaoyan Inventor before: Zhao Xing Inventor before: Shang Fajian Inventor before: Liu Xinning |
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Effective date of registration: 20231103 Address after: 450007 No. 356, Zhengshang Road, Sunzhuang village, xiliuhu street, Zhongyuan District, Zhengzhou City, Henan Province Patentee after: HENAN DINGSHENG ALUMINUM CO.,LTD. Address before: No. 3-2 601, No. 139 Zhongyuan West Road, Zhongyuan District, Zhengzhou City, Henan Province, 450007 Patentee before: Duan Lina Patentee before: Zhao Yunhui Patentee before: Hao Xiaoyan Patentee before: Zhao Xing Patentee before: Shang Fajian Patentee before: Liu Xinning |
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