CN108865190B - Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device - Google Patents
Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device Download PDFInfo
- Publication number
- CN108865190B CN108865190B CN201811052945.2A CN201811052945A CN108865190B CN 108865190 B CN108865190 B CN 108865190B CN 201811052945 A CN201811052945 A CN 201811052945A CN 108865190 B CN108865190 B CN 108865190B
- Authority
- CN
- China
- Prior art keywords
- hopper
- lifting sleeve
- trolley
- sealing
- bell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 92
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 62
- 238000007599 discharging Methods 0.000 claims abstract description 40
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 84
- 239000000428 dust Substances 0.000 claims description 81
- 238000012856 packing Methods 0.000 claims description 66
- 238000010791 quenching Methods 0.000 claims description 39
- 230000000171 quenching effect Effects 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 238000005429 filling process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000571 coke Substances 0.000 description 17
- 238000009826 distribution Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/12—Cooling or quenching coke combined with conveying means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Charging Or Discharging (AREA)
- Coke Industry (AREA)
Abstract
The invention relates to a lifting sleeve single-side sealed double-hopper loading device and a working method thereof, wherein 2 trolleys are arranged on a loading platform, one trolley is positioned at a loading position, and the other trolley is positioned at a maintenance position and is used as 2 independent loading units; in each charging unit, a discharging pipe is arranged at the bottom of an upper hopper, a lifting sleeve is arranged at the bottom of the discharging pipe, a sealing mechanism is arranged between the discharging pipe and the lifting sleeve and between the lifting sleeve and a lower hopper, and the lower edge of the lifting sleeve and a bell are sealed through a sealing surface; the bottom of the lower hopper is provided with a water sealing cover, and the upper hopper is provided with a level gauge which is controlled by interlocking with an actuating mechanism of the lifting sleeve; the invention can meet the charging and distributing requirements of continuous and less-quantity dispersed feeding in a longer time, and realize the online standby and rapid replacement of the bell; the single charging unit has functions of pre-storing and sealing, and the discharging amount is easy to adjust; thereby reducing the equipment cost and the running cost, reducing the working strength and ensuring the continuity of production operation.
Description
Technical Field
The invention relates to a dry quenching furnace top loading device, in particular to a lifting sleeve single-side sealed double-hopper loading device and a working method thereof.
Background
The charging device is an indispensable component in dry quenching, and has the main functions of opening and closing a furnace cover and uniformly introducing the incandescent coke in the coke tank into the dry quenching furnace for quenching through a distributor. The conventional coke dry quenching loading device is shown in figure 1 and is arranged on a platform 1-1 at the top of the coke dry quenching furnace and mainly comprises a hopper 1-2, a dustproof cover plate 1-3, a bell 1-4, a furnace cover 1-5, a hopper trolley 1-6, a furnace cover trolley 1-7, a transmission mechanism 1-8, a track frame 1-9, a sliding support 1-10, a fixed support 1-18, a guide template 1-11 and the like.
The hopper 1-2 is arranged on the hopper trolley 1-6, the furnace cover 1-5 is arranged on the furnace cover trolley 1-7, the furnace cover trolley 1-7 and the hopper trolley 1-6 are connected together through a pin shaft and walk on a track together, and the actions of opening the furnace cover 1-5, aligning the hopper 1-2 with a dry quenching furnace mouth, removing the hopper 1-2 and closing the furnace cover 1-5 are sequentially completed under the auxiliary limit of the guide template 1-11 through driving of the electric cylinder 1-12.
Normally (in standby), the furnace cover 1-5 is covered on the dry quenching furnace mouth, and the water seal cover 1-13 on the furnace cover 1-5 is inserted into the water seal groove 1-14 of the furnace mouth to keep the pressure in the dry quenching furnace. When the elevator sends out a loading instruction, the electric cylinder 1-12 starts traction action, and the processes of lifting the furnace cover 1-5, moving the trolley (1-6 and 1-7) and aligning the hopper 1-2 with the dry quenching furnace mouth are sequentially completed. The water seal cover 1-15 arranged at the discharging opening of the hopper 1-2 falls into the water seal tank 1-14 at a low speed, so that dust at the dry quenching furnace opening is prevented from leaking to the outside during charging. When the furnace cover 1-5 is opened by starting the loading device, the butterfly valve on the dust collecting pipeline 1-16 is also automatically opened to start dust collection.
After the hopper 1-2 of the loading device is aligned with the dry quenching furnace mouth, the lifting machine starts to roll down the coke tank 1-17, the coke tank 1-17 is seated on the sliding support 1-10 on the hopper, then falls onto the fixed support 1-18 supported on the dry quenching furnace platform together with the sliding support 1-10, and the sealing skirt edge at the bottom of the coke tank 1-17 contacts with the upper mouth of the hopper 1-2 to prevent dust generated during loading from leaking to the outside. The lifting machine continues to roll down, the gate at the bottom of the coke tank starts to open coke, the limit switch arranged on the coke tank support acts when the gate at the bottom of the coke tank is completely opened, a signal for opening the gate at the bottom of the coke tank is sent out, and the time for charging and settling is determined by the timer; after the charging and settling are completed, the elevator starts to roll up the empty coke drums 1-17 in a reverse motion to that described above. When the empty coke tank 11-7 is coiled to the upper limit, the loading device starts to act reversely, the hopper 1-2 is removed, the furnace cover 1-5 is covered on the dry quenching furnace mouth, and the loading operation is completed once. After the furnace cover 1-5 is closed by the loading device, the butterfly valve on the dust collecting pipeline 1-16 is also automatically closed to stop dust collection.
The furnace cover 1-5 is opened for a short time, the influence time of the upper space pressure of the cooling chamber on the loading device is also short, and during the period, the micro negative pressure operation of the dry quenching furnace mouth can be realized by adjusting the top pressure of the pre-storing chamber, and the furnace top dust collecting system is matched, so that a large amount of dust at the furnace mouth can be basically prevented from escaping.
However, the conventional loading device has the following disadvantages:
1) The loading device is only suitable for intermittent operation of centralizing a large amount of feed materials in a short time, but is not suitable for continuous and small-amount dispersed feed materials (such as a chain bucket conveyor and the like) in a long time. Because the charging device is not provided with the pre-stored hopper, on one hand, the furnace cover and the charging hopper can not be switched in the long-time continuous feeding period, which is equivalent to the state that the dry quenching furnace is in the uncapped charging state, and the pressure system in the dry quenching furnace can be adversely affected; on the other hand, when the material quantity is small, the material cannot be layered when the material is fed in a dispersed manner through the bell, so that the randomness of the distribution is large due to the ejection effect among particles, and even distribution is difficult to realize.
2) The hopper of the loading device is only used as a material circulation channel during loading operation, and does not have the functions of pre-storing and sealing. The hopper and the furnace cover are required to be switched by using an electric cylinder (or a hydraulic cylinder, etc.) frequently so as to realize the loading or sealing working state of the furnace mouth, thereby increasing the equipment cost and the running cost.
3) The bell in the loading hopper is extremely fragile under the working condition that the abrasion is strong and the high-temperature impact is large because of long-term use, and even if the bell is integrally replaced after being damaged, the work intensity is also large, the operation time consumption is long, the requirement cannot be met by the conventional overhaul time, and the continuity of production operation is difficult to guarantee.
Disclosure of Invention
The invention provides a lifting sleeve single-side sealed double-hopper loading device and a working method thereof, which can meet the loading and distributing requirements of continuous and small-quantity dispersed feeding in a long time, and realize the online standby and rapid replacement of a bell; the single charging unit has functions of pre-storing and sealing, and the discharging amount is easy to adjust; thereby reducing the equipment cost and the running cost, reducing the working strength and ensuring the continuity of production operation.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
a lifting sleeve single-side sealed double-hopper loading device comprises an upper hopper, a lower hopper, a hopper bracket, a trolley, a water seal cover and a dust collecting pipeline; the device also comprises a discharging pipe, a lifting sleeve, a sealing mechanism and a guiding mechanism; a track is arranged on a loading platform at the top of the dry quenching furnace, and 2 trolleys which are connected with each other are arranged on the track, wherein one trolley is positioned at a maintenance position at one side when the other trolley is positioned at a loading position above a furnace mouth; the arrangement on the 2 trolleys is the same, and the 2 trolleys are used as 2 independent charging units, and the 2 charging units are one-man and one-standby; in each charging unit, an upper hopper and a lower hopper are fixed on a trolley through a hopper bracket, a discharging pipe is arranged at the bottom of the upper hopper, a lifting sleeve is arranged at the bottom of the discharging pipe, and the lower part of the lifting sleeve can extend into the lower hopper under the driving of a corresponding executing mechanism; sealing mechanisms are arranged between the discharging pipe and the lifting sleeve and between the lifting sleeve and the lower hopper, and a guide mechanism is arranged at the outer side of the discharging pipe so that the lifting sleeve can only move along the vertical direction; the upper hopper and the lower hopper are internally provided with a material bell, a bell body of the material bell is positioned in the lower hopper, and the lower edge of the lifting sleeve is provided with a sealing surface which is matched with a corresponding sealing surface on the bell body to realize sealing; the bottom of the lower hopper is connected with a water seal cover through a flexible connection, and the height of the water seal cover is adjusted through a water seal cover lifting mechanism; a material level gauge is arranged in the upper hopper and is controlled in an interlocking way through a control system and an actuating mechanism of the lifting sleeve; a dust collecting cover is arranged above the corresponding furnace mouth, the bottom of the dust collecting cover is connected with the upper hopper of the corresponding charging unit through a soft connecting sleeve, one side of the top of the dust collecting cover is provided with a discharge opening of the chain bucket conveyor, and the other side of the top of the dust collecting cover is connected with a dust collecting pipeline.
The discharging opening of the chain bucket conveyor is provided with a sealing curtain which is made of heat-resistant rubber or fire-resistant ceramic fiber cloth.
The upper end and the lower end of the soft connecting sleeve are respectively pressed on the dust collecting cover and the outer wall of the upper hopper through whole circle of flat steel, the whole circle of flat steel is only provided with 1 opening, and the fastening degree of connection is adjusted through the opening.
The inner walls of the upper hopper, the discharging pipe and the lower hopper are lined with wear-resistant and heat-insulating materials, and the effective volume of the upper hopper is larger than the total amount of materials conveyed by the chain bucket conveyor in one operation period.
The lifting sleeve is made of wear-resistant and high-temperature-resistant metal.
The sealing mechanism consists of a packing cylinder, an inner ring packing, an outer ring packing, an inner ring packing supporting plate, an inner ring packing pressing plate and an outer ring sealing gland; the packing cylinder is fixed at the top of the lower hopper and at the outer side of the discharging pipe; the lifting sleeve penetrates through an annular space between the packing cylinder and the discharging pipe and divides the packing cylinder into an inner annular space and an outer annular space, and inner annular packing and outer annular packing are respectively filled in the inner annular space and the outer annular space; the bottom of the inner ring packing is provided with an inner ring packing supporting plate, the top of the inner ring packing is provided with an inner ring packing pressing plate, and the inner ring packing is packed between the inner wall of the lifting sleeve and the outer wall of the discharge pipe after being compressed to realize the sealing of the inner ring packing and the discharge pipe; the bottom of the outer ring packing is supported by the top surface of the lower hopper, the top is provided with an outer ring sealing gland, and the outer ring packing is packed between the outer wall of the lifting sleeve and the inner wall of the packing cylinder after being compressed to realize the sealing between the lifting sleeve and the lower hopper.
The bell consists of a bell body, a hanging column and a straight beam; the bell body is positioned in the lower hopper, and the outer side of the bell body is provided with a sealing surface matched with the bottom of the lifting sleeve; the horizontal beam is arranged in the upper hopper, and the clock body is suspended below the horizontal beam through the suspension column; the whole bell is lined with wear-resistant material.
The water seal cover lifting mechanism consists of a water seal cover guide pipe, a chain and a pin; one end of the chain is fixed on the trolley, the other end of the chain is connected with a pin fixed on the water seal cover, a plurality of through holes are formed in the water seal cover guide pipe in the height direction, and manual adjustment of the height of the water seal cover is realized by inserting the pin into the through holes with different heights in the water seal cover guide pipe.
The trolley is provided with a manual trolley moving mechanism, the manual trolley moving mechanism consists of a transmission mechanism and a manual rotary handle, a power input end of the transmission mechanism is connected with the manual rotary handle, a power output end of the transmission mechanism is connected with an axle of the trolley, and the trolley can move along a rail in a bidirectional manner by rotating the manual rotary handle clockwise or anticlockwise.
The working method of the double-hopper loading device with the lifting sleeve sealed at one side comprises the following steps:
one trolley of the double-hopper loading device is positioned at the loading position in the center of the furnace mouth, and the other trolley is positioned at the overhauling position at one side; the 2 trolley locks the position through wheel blocks, car blocks and trolley stop seats arranged on the track respectively; the initial positions of the water enclosures in the 2 filling units are all in a lifted state, and the filling process only adjusts the filling units at the filling level, and the specific adjustment steps are as follows:
1) The corresponding water seal cover is fallen into the water seal groove by adjusting the water seal cover lifting mechanism, and the enough water seal height is maintained;
2) The dust collecting cover is connected with the upper hopper through the soft connecting sleeve, so that dust is prevented from escaping from the dust collecting cover;
3) When no material is put into the dry quenching furnace in a standby state, the sealing surface at the lower edge of the lifting sleeve is tightly attached to the sealing surface correspondingly arranged at the outer side of the bell body of the bell, and the sealing formed by columnar materials in the upper hopper, the discharging pipe and the lower hopper is used for isolating the pre-storage chamber of the dry quenching furnace from the atmosphere;
4) When the chain bucket conveyor starts to start, the dust removing fans of the dust removing ground station connected with the dust collecting pipeline start and run at high speed at the same time, and dust collection is prepared through the dust collecting pipeline; the material enters the dust hood from the discharge opening of the chain bucket conveyor and falls into the upper hopper, the material gradually accumulates in the upper hopper due to the matched sealing effect of the lifting sleeve and the material bell, when the material level in the upper hopper reaches the position of the material level indicator, the actuating mechanism of the lifting sleeve is started to lift the lifting sleeve upwards, the sealing surface is opened, and the material in the upper hopper starts to enter the lower hopper from the discharge pipe and enters the dry quenching furnace after being distributed by the material bell;
5) The discharging speed of the lower hopper is slower than the feeding speed of the chain bucket conveyor, and the material level in the upper hopper is continuously increased until the feeding of the chain conveyor is finished, and at the moment, the dust removing fan of the ground dust removing station starts to be turned into low-speed operation;
6) As the material continues to enter the dry quenching furnace through the material clock, the material level in the upper hopper starts to slowly descend, when the material level is lowered to the position of the material level indicator, the actuating mechanism of the lifting sleeve acts again to descend the lifting sleeve, so that the sealing surface at the lower edge of the lifting sleeve is contacted with the corresponding sealing surface on the material clock again to realize sealing, and meanwhile, the dust removing fan of the ground dust removing station stops running, so that one loading working cycle is completed;
when the charging unit in the charging position needs to be overhauled, firstly, the soft connecting sleeve fastened at the top of the hopper at the upper part of the charging unit is removed, then the wheel block, the car block and the trolley stop seat are removed, and the water sealing cover is lifted by the water sealing cover lifting mechanism; and then the trolley at the loading position is moved to one side of the maintenance position by the manual trolley moving mechanism, at the moment, the other standby trolley synchronously moves to the loading position, and the moving unit entering the loading position is adjusted according to the steps 1) -6), so that a new loading working cycle is realized.
Compared with the prior art, the invention has the beneficial effects that:
1) Each charging unit has the functions of pre-storing and sealing, and a furnace cover and an electric cylinder for switching a charging hopper and the furnace cover are not needed, so that the equipment cost and the running cost are greatly reduced;
2) The upper hopper, the discharging pipe and the lower hopper are lined with heat insulation materials, so that the heat loss is reduced compared with the hopper of the conventional dry quenching loading device, and the heat efficiency of the dry quenching furnace is improved;
3) The dust hood and the upper hopper are sealed by adopting an integral soft connecting sleeve, so that the skirt edge between the dust hood and the upper hopper is sealed more tightly than the skirt edge between the conventional coke dry quenching tank and the conventional coke dry quenching hopper, and the dust escape at the dust hood is thoroughly eliminated;
4) When the material is charged, the height of the lifting sleeve can be adjusted through the actuating mechanism, so that the uniformity and controllability of the bottom material flow are realized, and the material is more beneficial to the improvement of the material distribution uniformity after passing through the bell body of the bell;
5) No matter in the loading or non-loading state, a section of higher material column is always arranged between the furnace mouth and the external atmosphere (the sealing of the lifting sleeve and the sealing surface of the bell body is also simultaneously arranged in the non-loading state), on one hand, the furnace mouth is isolated from the external atmosphere, the leakage resistance between the pre-chamber of the dry quenching furnace and the atmosphere is increased, and the influence of the top pressure of the pre-chamber on the loading is eliminated to a great extent; on the other hand, the large material column at the upper part reduces free ejection of the bottom material flow when passing through the material bell, is more beneficial to layering of the material when being distributed on the surface of the material bell, and improves the uniformity of the material distribution;
6) The sectional area of the discharging pipe is far smaller than the average sectional area of the upper hopper, so that the material level in the upper hopper descends more slowly under the condition of the same material flow, secondary dust in the descending process is greatly reduced, and the load of the dust removing ground station is reduced; the blanking height of the head part of the chain bucket conveyor is gradually reduced due to the fact that the material level in the upper hopper is gradually increased during charging, and dust raising and material distribution segregation of the conveyor in the discharging process are also gradually reduced;
7) According to the invention, 2 independent charging units are adopted, so that the on-line standby and working switching are realized, the rapid switching can be completed by utilizing the feeding gap, and the operation is simple and feasible, thereby ensuring the continuity of production operation; the equipment does not need to be maintained on line but enters a maintenance position on one side for maintenance, so that the labor intensity of maintenance personnel is reduced, and the working environment is improved;
8) Besides the automatic control of the lifting function of the lifting sleeve, other lifting mechanisms such as a water seal cover lifting mechanism and a manual vehicle moving mechanism are manually operated, the maximum bearing degree reduces a power source, reduces the failure rate of the mechanism, improves the running reliability of the device, and simultaneously reduces the equipment cost and the running cost of the device.
Drawings
Fig. 1 is a schematic structural view of a conventional dry quenching charging device.
Fig. 2 is a schematic structural view of a lifting sleeve single-side sealed double-hopper loading device according to the invention.
FIG. 3 is a schematic view of the structure of the sealing curtain at the discharge opening of the bucket chain conveyor of the present invention.
Fig. 4 is a schematic view of the structure of the bell according to the present invention.
Fig. 5 is a schematic view of the seal mechanism according to the present invention.
Fig. 6 is a schematic structural view of the lifting mechanism of the water seal cover.
Fig. 7 is a schematic structural view of the manual cart moving mechanism of the present invention.
In the figure: 1-1 parts of dry quenching furnace top platform 1-2 parts of hopper 1-3 parts of dust-proof cover plate 1-4 parts of material bell 1-5 parts of furnace cover 1-6 parts of hopper trolley 1-7 parts of furnace cover trolley 1-8 parts of transmission mechanism 1-9 parts of track frame 1-10 parts of sliding support 1-11 parts of guide template 1-12 parts of electric cylinder 1-13 parts of furnace cover water cover 1-14 parts of water seal groove 1-15 parts of hopper water cover 1-16 parts of dust-collecting pipeline 1-17 parts of coke pot 1-18 parts of fixed support
1. The dust hood 2, support bracket 3, flexible adapter sleeve 4, trolley 5, upper hopper 6, hopper bracket 7, charge level indicator 8, discharge tube 9, lift sleeve 10, sealing mechanism 11, guide mechanism 12, lower hopper 13, bell 14, water seal cover 15, water seal cover lift mechanism 16, manual transfer mechanism 17, track 18, gear 19, car stop 20, trolley stop 21, track beam 22, loading platform 23, dust collecting duct 24, chain conveyor 25, sealing curtain 26, bell 27, packing cylinder 28, inner ring packing/outer ring packing 29, inner ring packing pallet 30, inner ring packing platen 31, outer ring sealing gland 32, lifting column 33, character beam 34, water seal cover guide tube 35, chain 36, pin 37, transmission mechanism 38, manual rotary handle 39, water seal groove I, loading level II, service position II
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
as shown in fig. 2, the lifting sleeve single-side sealed double-hopper loading device comprises an upper hopper 5, a lower hopper 12, a hopper bracket 6, a trolley 4, a water sealing cover 14 and a dust collecting pipeline 23; the device also comprises a discharging pipe 8, a lifting sleeve 9, a sealing mechanism 10 and a guiding mechanism 11; a track 17 is arranged on a loading platform 22 at the top of the dry quenching furnace, 2 trolleys 4 which are connected with each other are arranged on the track 17, and when one trolley 4 is positioned at a loading position I above a furnace mouth, the other trolley 4 is positioned at a maintenance position II at one side; the arrangement on the 2 trolleys 4 is the same, and the 2 trolleys are used as 2 independent charging units, and the 2 charging units are one-time and one-standby; in each charging unit, an upper hopper 5 and a lower hopper 12 are fixed on a trolley 4 through a hopper bracket 6, a discharging pipe 8 is arranged at the bottom of the upper hopper 5, a lifting sleeve 9 is arranged at the bottom of the discharging pipe 8, and the lower part of the lifting sleeve 9 can extend into the lower hopper 12 under the driving of a corresponding executing mechanism; a sealing mechanism 10 is arranged between the discharging pipe 8 and the lifting sleeve 9 and between the lifting sleeve 9 and the lower hopper 12, and a guiding mechanism 11 is arranged at the outer side of the discharging pipe 8 so that the lifting sleeve 9 can only move along the vertical direction; a bell 13 is arranged in the upper hopper 5 and the lower hopper 12, the bell body of the bell 13 is positioned in the lower hopper 12, and the lower edge of the lifting sleeve 9 is provided with a sealing surface which is matched with a corresponding sealing surface on the bell body of the bell 13 to realize sealing; the bottom of the lower hopper 12 is connected with the water sealing cover 14 through soft connection, and the height of the water sealing cover 14 is adjusted through a water sealing cover lifting mechanism 15; a material level gauge 7 is arranged in the upper hopper 5, and the material level gauge 7 is controlled in an interlocking way with an executing mechanism of the lifting sleeve 9 through a control system; a dust collecting cover 1 is arranged above the corresponding furnace mouth, the bottom of the dust collecting cover 1 is connected with an upper hopper 5 of the corresponding charging unit through a soft connecting sleeve 3, a chain bucket conveyor discharge opening is arranged on one side of the top of the dust collecting cover 1, and the other side of the top of the dust collecting cover 1 is connected with a dust collecting pipeline 23.
As shown in fig. 3, a sealing curtain 25 is arranged at the discharge opening of the chain bucket conveyor, and the sealing curtain 25 is made of heat-resistant rubber or fire-resistant ceramic fiber cloth.
The upper end and the lower end of the soft connecting sleeve 3 are respectively pressed on the dust collecting cover 1 and the outer wall of the upper hopper 5 through whole circle of flat steel, the whole circle of flat steel is only provided with 1 opening, and the fastening degree of connection is adjusted through the opening.
The inner walls of the upper hopper 5, the discharge pipe 8 and the lower hopper 12 are lined with wear-resistant and heat-insulating materials, and the effective volume of the upper hopper 5 is larger than the total amount of materials conveyed by the chain bucket conveyor 24 in one operation period.
The lifting sleeve 9 is made of wear-resistant and high-temperature-resistant metal.
As shown in fig. 5, the sealing mechanism 10 is composed of a packing cylinder 27, an inner packing and an outer packing 28, an inner packing pallet 29, an inner packing pressing plate 30 and an outer packing gland 31; a packing cylinder 27 is fixed at the top of the lower hopper 12 and outside the discharge pipe 8; the lifting sleeve 9 passes through the annular space between the packing cylinder 27 and the discharging pipe 8 and divides the packing cylinder 27 into an inner annular space and an outer annular space, and inner annular packing and outer annular packing 28 are respectively filled in the inner annular space and the outer annular space; an inner ring packing support plate 29 is arranged at the bottom of the inner ring packing, an inner ring packing pressing plate 30 is arranged at the top of the inner ring packing, and the inner ring packing is packed between the inner wall of the lifting sleeve 9 and the outer wall of the discharging pipe 8 after being compressed to realize the sealing of the inner ring packing and the discharging pipe; the bottom of the outer ring packing is supported by the top surface of the lower hopper 12, the top is provided with an outer ring sealing gland 31, and the outer ring packing is packed between the outer wall of the lifting sleeve 9 and the inner wall of the packing barrel 27 after being compressed to realize the sealing between the lifting sleeve 9 and the lower hopper 12.
As shown in fig. 4, the bell 13 is composed of a bell body 26, a hanging column 32 and a horizontal beam 33; the clock body 26 is positioned in the lower hopper 12, and the outer side of the clock body is provided with a sealing surface matched with the bottom of the lifting sleeve 9; a horizontal beam 33 is arranged in the upper hopper 5, and the clock body 26 is suspended below the horizontal beam 33 through a suspension column 32; the whole bell 13 is lined with wear-resistant material.
As shown in fig. 6, the water seal cover lifting mechanism 15 is composed of a water seal cover guide tube 34, a chain 35 and a pin 36; one end of a chain 35 is fixed on the trolley 4, the other end is connected with a pin 36 fixed on the water sealing cover 14, a plurality of through holes are arranged on the water sealing cover guide pipe 34 in the height direction, and the manual adjustment of the height of the water sealing cover 14 is realized by inserting the pin 36 into the through holes with different heights on the water sealing cover guide pipe 34.
As shown in fig. 7, the trolley 4 is provided with a manual trolley moving mechanism 16, the manual trolley moving mechanism 16 is composed of a transmission mechanism 37 and a manual rotary handle 38, a power input end of the transmission mechanism 37 is connected with the manual rotary handle 38, a power output end is connected with an axle of the trolley 4, and bidirectional movement of the trolley 4 along the track 17 is realized by rotating the manual rotary handle 38 clockwise or anticlockwise.
The working method of the double-hopper loading device with the lifting sleeve sealed at one side comprises the following steps:
one trolley 4 of the double-hopper loading device is positioned at a loading position I in the center of a furnace mouth, and the other trolley 4 is positioned at a maintenance position II on one side; the 2 trolley 4 locks the initial position of the water sealing cover 14 which is arranged in the unit at the 2 position through the wheel block 18, the trolley block 19 and the trolley stop seat 20 which are arranged on the track 17 respectively and is in a lifting state; the loading process only adjusts the loading unit at the loading level I, the specific adjustment steps are as follows:
1) By adjusting the water-seal lifting mechanism 15, the corresponding water-seal 14 is dropped into the water-seal groove 39, and a sufficient water-seal height is maintained; (Water seal cover 14 in the other charging unit is in a raised state)
2) The dust collection cover 1 is connected with the upper hopper 5 through the soft connecting sleeve 3, so that dust is prevented from escaping from the dust collection cover;
3) When no material is put into the dry quenching furnace in a standby state, the sealing surface at the lower edge of the lifting sleeve 9 is tightly attached to the sealing surface correspondingly arranged at the outer side of the bell body 26 of the bell 13, and the sealing formed by columnar materials in the upper hopper 5, the discharging pipe 8 and the lower hopper 12 is used for isolating the pre-storage chamber of the dry quenching furnace from the atmosphere;
4) When the chain bucket conveyor 24 starts to start, the dust removing fans of the dust removing ground station connected with the dust collecting pipeline 23 start simultaneously and run at high speed, and dust collection is prepared through the dust collecting pipeline 23; the material enters the dust hood 1 from the discharge opening of the chain bucket conveyor and falls into the upper hopper 5, the material gradually accumulates in the upper hopper 5 due to the matched sealing effect of the lifting sleeve 9 and the material clock 13, when the material level in the upper hopper 5 reaches the position of the material level meter 7, the actuating mechanism of the lifting sleeve 9 is started to lift the lifting sleeve 7 upwards, the sealing surface is opened, and the material in the upper hopper 5 starts to enter the lower hopper 12 from the discharge pipe 8 and enters the dry quenching furnace after being distributed by the material clock 13;
5) Since the discharging speed of the lower hopper 12 is slower than the feeding speed of the chain bucket conveyor 24, the material level in the upper hopper 5 continues to rise until the feeding of the chain conveyor 24 is finished, and at the moment, the dust removing fan of the ground dust removing station starts to be turned into low-speed operation;
6) As the material continues to enter the dry quenching furnace through the material clock 13, the material level in the upper hopper 5 starts to slowly descend, when the material level is lowered to the position of the material level indicator 7, the actuating mechanism of the lifting sleeve 9 acts again to descend the lifting sleeve 9, so that the sealing surface at the lower edge of the lifting sleeve is contacted with the corresponding sealing surface on the material clock 13 again to realize sealing, and meanwhile, the dust removing fan of the ground dust removing station stops running, so that one loading working cycle is completed;
when the charging unit at the charging position I needs to be overhauled, firstly, the soft connecting sleeve 3 fastened at the top of the hopper 5 at the upper part of the charging unit is removed, then the wheel block 18, the car block 19 and the trolley stop seat 20 are removed, and the water sealing cover 14 is lifted by the water sealing cover lifting mechanism 15; the trolley 4 located at the loading position I is then moved by the manual trolley moving mechanism 16 to the service position II on one side, at which time the other spare trolley 4 is moved synchronously to the loading position I, and the loading unit entering the loading position I is adjusted as described in steps 1) to 6), so that a new loading cycle is realized.
In the invention, the rail 17 is supported by the rail beam 21, and the trolleys 4 of the 2 loading units can be connected by adopting pin shafts. The dust hood 1 is fixed on the loading platform 22 through a support frame 2, and the top of the dust hood 1 is connected to a dust collection ground station through a dust collection pipeline 23. The actuating mechanism of the lifting sleeve 9 is fixed by a support welded on the outer wall of the upper hopper 5, and the actuating mechanism can use a mechanical device consisting of a cylinder, a hydraulic cylinder, an electric hydraulic cylinder or a motor or the like or the equipment and a mechanical connecting rod, a speed reducer, a gear or a rack and the like, and is provided with a positioner for accurately adjusting the lifting height of the lifting sleeve 9.
The outside of the packing cylinder 27 is provided with a reinforcing rib, and an outer ring sealing gland 31 is connected with a flange at the top of the packing cylinder 27 through bolts.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. A lifting sleeve single-side sealed double-hopper loading device comprises an upper hopper, a lower hopper, a hopper bracket, a trolley, a water seal cover and a dust collecting pipeline; the automatic feeding device is characterized by further comprising a discharging pipe, a lifting sleeve, a sealing mechanism and a guiding mechanism; a track is arranged on a loading platform at the top of the dry quenching furnace, and 2 trolleys which are connected with each other are arranged on the track, wherein one trolley is positioned at a maintenance position at one side when the other trolley is positioned at a loading position above a furnace mouth; the arrangement on the 2 trolleys is the same, and the 2 trolleys are used as 2 independent charging units, and the 2 charging units are one-man and one-standby; in each charging unit, an upper hopper and a lower hopper are fixed on a trolley through a hopper bracket, a discharging pipe is arranged at the bottom of the upper hopper, a lifting sleeve is arranged at the bottom of the discharging pipe, and the lower part of the lifting sleeve can extend into the lower hopper under the driving of a corresponding executing mechanism; sealing mechanisms are arranged between the discharging pipe and the lifting sleeve and between the lifting sleeve and the hopper at the lower part, and each sealing mechanism consists of a packing cylinder, an inner ring packing, an outer ring packing, an inner ring packing supporting plate, an inner ring packing pressing plate and an outer ring sealing gland; the packing cylinder is fixed at the top of the lower hopper and at the outer side of the discharging pipe; the lifting sleeve penetrates through an annular space between the packing cylinder and the discharging pipe and divides the packing cylinder into an inner annular space and an outer annular space, and inner annular packing and outer annular packing are respectively filled in the inner annular space and the outer annular space; the bottom of the inner ring packing is provided with an inner ring packing supporting plate, the top of the inner ring packing is provided with an inner ring packing pressing plate, and the inner ring packing is packed between the inner wall of the lifting sleeve and the outer wall of the discharge pipe after being compressed to realize the sealing of the inner ring packing and the discharge pipe; the bottom of the outer ring packing is supported by the top surface of the lower hopper, the top of the outer ring packing is provided with an outer ring sealing gland, and the outer ring packing is packed between the outer wall of the lifting sleeve and the inner wall of the packing cylinder after being compressed to realize the sealing between the lifting sleeve and the lower hopper; a guide mechanism is arranged on the outer side of the discharging pipe, so that the lifting sleeve can only move along the vertical direction; the upper hopper and the lower hopper are internally provided with a material bell, a bell body of the material bell is positioned in the lower hopper, and the lower edge of the lifting sleeve is provided with a sealing surface which is matched with a corresponding sealing surface on the bell body to realize sealing; the bottom of the lower hopper is connected with a water seal cover through a flexible connection, and the height of the water seal cover is adjusted through a water seal cover lifting mechanism; the water seal cover lifting mechanism consists of a water seal cover guide pipe, a chain and a pin; one end of the chain is fixed on the trolley, the other end of the chain is connected with a pin fixed on the water seal cover, a plurality of through holes are arranged on the water seal cover guide pipe in the height direction, and the manual adjustment of the height of the water seal cover is realized by inserting the pin into the through holes with different heights on the water seal cover guide pipe; a material level gauge is arranged in the upper hopper and is controlled in an interlocking way through a control system and an actuating mechanism of the lifting sleeve; a dust collecting cover is arranged above the corresponding furnace mouth, the bottom of the dust collecting cover is connected with the upper hopper of the corresponding charging unit through a soft connecting sleeve, one side of the top of the dust collecting cover is provided with a discharge opening of the chain bucket conveyor, and the other side of the top of the dust collecting cover is connected with a dust collecting pipeline.
2. The lifting sleeve single-side sealed double-hopper loading device according to claim 1, wherein a sealing curtain is arranged at the discharging opening of the chain hopper conveyor, and the sealing curtain is made of heat-resistant rubber or fire-resistant ceramic fiber cloth.
3. The lifting sleeve single-side sealed double-hopper loading device according to claim 1, wherein the upper end and the lower end of the soft connecting sleeve are respectively pressed on the dust collecting cover and the outer wall of the upper hopper through whole circle of flat steel, the whole circle of flat steel is provided with only 1 opening, and the fastening degree of the connection is adjusted through the opening.
4. The lifting sleeve single-side sealed double-hopper loader according to claim 1, wherein the inner walls of the upper hopper, the discharge pipe and the lower hopper are lined with wear-resistant and heat-insulating materials, and the effective volume of the upper hopper is larger than the total amount of materials conveyed by the chain bucket conveyor in one operation cycle.
5. The lifting sleeve single-side sealed double-hopper loading device according to claim 1, wherein the lifting sleeve is made of wear-resistant and high-temperature-resistant metal.
6. The lifting sleeve single-side sealed double-hopper loading device according to claim 1, wherein the bell consists of a bell body, a hanging column and a straight beam; the bell body is positioned in the lower hopper, and the outer side of the bell body is provided with a sealing surface matched with the bottom of the lifting sleeve; the horizontal beam is arranged in the upper hopper, and the clock body is suspended below the horizontal beam through the suspension column; the whole bell is lined with wear-resistant material.
7. The lifting sleeve single-side sealed double-hopper loading device according to claim 1, wherein the trolley is provided with a manual trolley moving mechanism, the manual trolley moving mechanism consists of a transmission mechanism and a manual rotary handle, a power input end of the transmission mechanism is connected with the manual rotary handle, a power output end is connected with an axle of the trolley, and bidirectional movement of the trolley along a track is realized by rotating the manual rotary handle clockwise or anticlockwise.
8. A method of operating a single-sided sealed double hopper loader of a lift sleeve as claimed in claim 1 and including:
one trolley of the double-hopper loading device is positioned at the loading position in the center of the furnace mouth, and the other trolley is positioned at the overhauling position at one side; the 2 trolley locks the position through wheel blocks, car blocks and trolley stop seats arranged on the track respectively; the initial positions of the water enclosures in the 2 filling units are all in a lifted state, and the filling process only adjusts the filling units at the filling level, and the specific adjustment steps are as follows:
1) The corresponding water seal cover is fallen into the water seal groove by adjusting the water seal cover lifting mechanism, and the enough water seal height is maintained;
2) The dust collecting cover is connected with the upper hopper through the soft connecting sleeve, so that dust is prevented from escaping from the dust collecting cover;
3) When no material is put into the dry quenching furnace in a standby state, the sealing surface at the lower edge of the lifting sleeve is tightly attached to the sealing surface correspondingly arranged at the outer side of the bell body of the bell, and the sealing formed by columnar materials in the upper hopper, the discharging pipe and the lower hopper is used for isolating the pre-storage chamber of the dry quenching furnace from the atmosphere;
4) When the chain bucket conveyor starts to start, the dust removing fans of the dust removing ground station connected with the dust collecting pipeline start and run at high speed at the same time, and dust collection is prepared through the dust collecting pipeline; the material enters the dust hood from the discharge opening of the chain bucket conveyor and falls into the upper hopper, the material gradually accumulates in the upper hopper due to the matched sealing effect of the lifting sleeve and the material bell, when the material level in the upper hopper reaches the position of the material level indicator, the actuating mechanism of the lifting sleeve is started to lift the lifting sleeve upwards, the sealing surface is opened, and the material in the upper hopper starts to enter the lower hopper from the discharge pipe and enters the dry quenching furnace after being distributed by the material bell;
5) The discharging speed of the lower hopper is slower than the feeding speed of the chain bucket conveyor, and the material level in the upper hopper is continuously increased until the feeding of the chain conveyor is finished, and at the moment, the dust removing fan of the ground dust removing station starts to be turned into low-speed operation;
6) As the material continues to enter the dry quenching furnace through the material clock, the material level in the upper hopper starts to slowly descend, when the material level is lowered to the position of the material level indicator, the actuating mechanism of the lifting sleeve acts again to descend the lifting sleeve, so that the sealing surface at the lower edge of the lifting sleeve is contacted with the corresponding sealing surface on the material clock again to realize sealing, and meanwhile, the dust removing fan of the ground dust removing station stops running, so that one loading working cycle is completed;
when the charging unit in the charging position needs to be overhauled, firstly, the soft connecting sleeve fastened at the top of the hopper at the upper part of the charging unit is removed, then the wheel block, the car block and the trolley stop seat are removed, and the water sealing cover is lifted by the water sealing cover lifting mechanism; and then the trolley at the loading position is moved to one side of the maintenance position by the manual trolley moving mechanism, at the moment, the other standby trolley synchronously moves to the loading position, and the moving unit entering the loading position is adjusted according to the steps 1) -6), so that a new loading working cycle is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052945.2A CN108865190B (en) | 2018-09-10 | 2018-09-10 | Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811052945.2A CN108865190B (en) | 2018-09-10 | 2018-09-10 | Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108865190A CN108865190A (en) | 2018-11-23 |
| CN108865190B true CN108865190B (en) | 2024-01-30 |
Family
ID=64323858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811052945.2A Active CN108865190B (en) | 2018-09-10 | 2018-09-10 | Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108865190B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203187619U (en) * | 2013-03-12 | 2013-09-11 | 秦皇岛秦冶重工有限公司 | Split type loading device for dry quenching equipment |
| CN203569028U (en) * | 2013-09-30 | 2014-04-30 | 宝山钢铁股份有限公司 | Dry quenching loading dust removing device |
| CN205616840U (en) * | 2016-04-11 | 2016-10-05 | 唐山钢铁集团有限责任公司 | Dry coke quenching device of packing into |
| CN106675586A (en) * | 2015-11-10 | 2017-05-17 | 科利特环能科技（大连）有限公司 | Coke charging and sealing device of dry quenching furnace and dry quenching furnace |
| CN206188736U (en) * | 2016-09-30 | 2017-05-24 | 马鞍山钢铁股份有限公司 | Dry coke quenching sealing device that packs into |
| CN208980644U (en) * | 2018-09-10 | 2019-06-14 | 中冶焦耐(大连)工程技术有限公司 | A kind of dual hopper charging apparatus of jacking sleeve single-side sealing |
-
2018
- 2018-09-10 CN CN201811052945.2A patent/CN108865190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203187619U (en) * | 2013-03-12 | 2013-09-11 | 秦皇岛秦冶重工有限公司 | Split type loading device for dry quenching equipment |
| CN203569028U (en) * | 2013-09-30 | 2014-04-30 | 宝山钢铁股份有限公司 | Dry quenching loading dust removing device |
| CN106675586A (en) * | 2015-11-10 | 2017-05-17 | 科利特环能科技（大连）有限公司 | Coke charging and sealing device of dry quenching furnace and dry quenching furnace |
| CN205616840U (en) * | 2016-04-11 | 2016-10-05 | 唐山钢铁集团有限责任公司 | Dry coke quenching device of packing into |
| CN206188736U (en) * | 2016-09-30 | 2017-05-24 | 马鞍山钢铁股份有限公司 | Dry coke quenching sealing device that packs into |
| CN208980644U (en) * | 2018-09-10 | 2019-06-14 | 中冶焦耐(大连)工程技术有限公司 | A kind of dual hopper charging apparatus of jacking sleeve single-side sealing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108865190A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101602950A (en) | U type pipe is led the fume and dust car | |
| CN205402739U (en) | Domestic waste pyrolysis gasification feeding device | |
| CN108865189B (en) | Double-hopper loading device with lifting sleeve sealed at two sides and working method of double-hopper loading device | |
| CN208980644U (en) | A kind of dual hopper charging apparatus of jacking sleeve single-side sealing | |
| CN108913170B (en) | Double-hopper loading device with automatic discharging turning plate and sealing gate and working method | |
| CN108865190B (en) | Double-hopper loading device with lifting sleeve sealed on one side and working method of double-hopper loading device | |
| CN105836491A (en) | Special bin valve for reducing dust quantity | |
| CN108913168B (en) | Double-hopper loading device with automatic discharging turning plate and working method thereof | |
| CN109883204B (en) | Automatic feeding system of regenerated copper smelting furnace | |
| CN210802068U (en) | Scrap preheating device and electric arc melting equipment | |
| CN208898802U (en) | A kind of dual hopper charging apparatus of jacking sleeve two-side sealing | |
| CN208776656U (en) | A kind of dual hopper charging apparatus with automatic discharging turnover panel | |
| CN208980643U (en) | Dual hopper charging apparatus with automatic discharging turnover panel and sealed gate | |
| CN111910059A (en) | Vertical high vacuum heat treatment furnace | |
| CN212741436U (en) | Vertical high vacuum heat treatment furnace | |
| CN216273125U (en) | Automatic material feeding and distributing system for material inlet of activation furnace | |
| US4186057A (en) | Gas extracting and purifying equipment | |
| CN206157092U (en) | Novel casting formed coke coke quenching cart | |
| CN109367519B (en) | Dust collector for train carriage loading | |
| CN216890792U (en) | Environment-friendly top-mounted coke oven coal charging car | |
| CN116023957A (en) | Unit combined loading device with hydraulic lifting bell and working method thereof | |
| CN206318453U (en) | Distribution device | |
| CN109280558B (en) | Dry quenching fixed loading device | |
| CN209816026U (en) | Dry quenching fixed type loading device | |
| CN216273929U (en) | Movable smoke guide pipe device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |