CN220454282U - Closed slag discharging system - Google Patents
Closed slag discharging system Download PDFInfo
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- CN220454282U CN220454282U CN202322163814.4U CN202322163814U CN220454282U CN 220454282 U CN220454282 U CN 220454282U CN 202322163814 U CN202322163814 U CN 202322163814U CN 220454282 U CN220454282 U CN 220454282U
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- discharging
- slag discharging
- negative pressure
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- 239000002893 slag Substances 0.000 title claims abstract description 230
- 238000007599 discharging Methods 0.000 title claims abstract description 98
- 238000007789 sealing Methods 0.000 claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 16
- 229910052720 vanadium Inorganic materials 0.000 description 13
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 13
- 238000001704 evaporation Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 8
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 5
- 230000029058 respiratory gaseous exchange Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000005660 chlorination reaction Methods 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a closed slag discharging system which comprises a slag conveying device, a slag discharging port sealing device, a pulse discharging device, a material receiving valve, a slag discharging hopper and a negative pressure system. The slag conveying device is arranged at the bottom of the slag discharging furnace and rotates and stirs. The slag discharging port sealing device is positioned below the slag discharging port of the slag discharging furnace and comprises a main body and a sealing mechanism, wherein the main body defines a sealing cavity which is in sealing communication with the slag discharging port, and the sealing mechanism is arranged in the sealing cavity. The pulse discharging device comprises an air source and a pipeline, wherein the pipeline extends into the sealing cavity, and the air outlet faces the slag discharging port. The receiving valve is connected under the slag discharging port sealing device in a sealing way. The slag discharging hopper is connected with the lower part of the material receiving valve in a sealing way and receives the material slag discharged through the slag discharging port, and the negative pressure system is communicated with the inside of the slag discharging hopper. The system can realize sealed slag discharge and improve the safety of slag discharge.
Description
Technical Field
The utility model relates to the technical field of titanium tetrachloride production, in particular to a closed slag discharging system.
Background
Titanium tetrachloride is the main raw material of industrial products such as titanium dioxide by a chlorination method, titanium sponge and the like, and the main production methods at home and abroad are two methods of boiling chlorination and molten salt chlorination. The production of the refined titanium tetrachloride is to remove impurities from crude titanium tetrachloride in a chemical vanadium removal mode to produce refined titanium tetrachloride, and the byproduct refined vanadium slag also has rich vanadium resources to be recycled.
The refined vanadium slag is evaporated by the ore pulp evaporation furnace. Wherein, the titanium tetrachloride is condensed in other devices after being volatilized, and the rest solid refined vanadium slag is agglomerated and left at the bottom of the ore pulp evaporating furnace. The refined vanadium slag particles are finer and have higher temperature, and particularly, the refined vanadium slag produced in the vanadium removal process by using organic matters contains more than 20 percent of carbon, the slag removal process burns when meeting air, the potential safety hazard is large, and the scattered smoke is extremely serious in the slag removal process. At present, some carbon-containing dust deslagging technologies of an evaporation furnace exist, for example, patent document CN 209431878U discloses a carbon-containing dust deslagging device of the evaporation furnace, the device comprises a movable blind plate and a pull rope, the movable blind plate can be connected with an outlet flange at the lower end of the evaporation furnace, one end of the outer wall of the movable blind plate is hinged with the end face of the bottom of the evaporation furnace, and the outer wall of the other opposite side of the movable blind plate is connected with one end part of the pull rope. When slag is required to be discharged, the fastening bolt can be firstly taken out, the movable blind plate is opened, a worker pulls the pull rope away from the slag discharge outlet, the movable blind plate is separated from the slag discharge outlet, long-distance slag discharge can be realized, the accident rate is reduced, and stable production is facilitated. However, the device still has some disadvantages, for example, when deslagging, the workers are required to take away the bolts for fixing the movable blind plate and the flange of the outlet of the evaporation furnace, so that the labor intensity of the workers is increased, a certain danger is also provided, and after the movable blind plate is opened, a certain gap exists between the outlet of the evaporation furnace and the slag pot below, and the problem of scattered smoke is still caused in the deslagging process.
Accordingly, there is a need for improvements to existing slag removal devices to provide a safer slag removal device.
Disclosure of Invention
The present utility model is directed to a closed slag discharging system for solving at least one of the above problems in the prior art.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
according to an aspect of the present utility model, there is provided a closed slag discharging system, comprising:
the slag conveying device is arranged at the bottom of the slag discharging furnace and rotates and stirs;
the slag discharge port sealing device is positioned below the slag discharge port of the slag discharge furnace and comprises a main body and a sealing mechanism, wherein the main body defines a sealing cavity which is communicated with the slag discharge port in a sealing way, and the sealing mechanism is arranged in the sealing cavity and can be switched between a first position for sealing the slag discharge port and a second position for opening the slag discharge port;
the pulse discharging device comprises an air source and a pipeline, the pipeline extends into the sealing cavity, and the air outlet faces the slag discharge port;
the material receiving valve is connected to the lower part of the slag discharging port sealing device in a sealing way and controls the downward discharging operation of the slag discharging port sealing device;
the slag discharging hopper is connected to the lower part of the material receiving valve in a sealing way and receives the material slag discharged through the slag discharging port;
the negative pressure system is communicated with the interior of the slag discharge hopper.
According to one embodiment of the present utility model, the slag conveying device includes:
a stirrer comprising a central shaft and stirring blades; and
the spiral slag discharging component is arranged in the slag discharging port chute and comprises a spiral shaft fixedly connected with the central shaft and a spiral belt arranged on the spiral shaft.
According to one embodiment of the utility model, the central shaft can rotate in a positive direction and a negative direction, and the twisting direction of the spiral belt is set so that the spiral belt rotates along with the stirrer and has a loosening effect on slag in the chute and does not press the slag downwards when the stirrer rotates in the positive direction, and the spiral belt rotates along with the stirrer and presses the slag in the chute downwards to promote slag discharge when the stirrer rotates in the negative direction.
According to one embodiment of the utility model, the sealing mechanism is a pneumatic flap valve.
According to one embodiment of the utility model, the pulse discharging device comprises a nitrogen gun and an electromagnetic pulse valve.
According to one embodiment of the utility model, the material receiving valve is a metal ball valve.
According to one embodiment of the utility model, the negative pressure system comprises a negative pressure control valve and a negative pressure fan, wherein the negative pressure control valve is arranged on a pipeline between the negative pressure fan and the slag discharge hopper.
According to one embodiment of the utility model, the frequency of the negative pressure fan is adjustable.
According to one embodiment of the utility model, the device further comprises an exhaust gas treatment device, wherein the exhaust gas treatment device is connected to an exhaust port of the negative pressure fan and absorbs exhaust gas generated by deslagging.
According to another aspect of the present utility model, there is provided a method for closed deslagging using the system described above, comprising the steps of:
step S1: confirming that ore pulp furnace materials in a slag discharging furnace are evaporated to dryness, and having slag discharging conditions;
step S2: opening a receiving valve, closing a negative pressure system, opening a slag discharging port sealing device, starting a slag conveying device to discharge slag, and observing slag discharging conditions;
step S3: if the slag discharge is not smooth, closing the material receiving valve, starting the pulse discharging device to clear and loosen the blocking point, and opening the material receiving valve to continue slag discharge after the loosening is finished;
step S4: if the slag discharge is normal, starting a negative pressure system and enabling the negative pressure system to operate at a first frequency so as to ensure the pressure balance of the closed slag discharge system;
step S5: after the completion of slag discharge is confirmed, the slag discharge port sealing device is closed, the negative pressure system is operated to operate at the second rising frequency so as to absorb the waste gas in the slag discharge hopper, after the waste gas absorption is completed, the breathing pipeline at the top of the slag discharge hopper and the flange of the discharging pipeline are removed, the slag pot is carried away, a new slag pot is replaced, and the next slag discharge is waited.
Due to the adoption of the technical scheme, the closed slag discharging system provided by the utility model has at least one of the following beneficial effects compared with the prior art:
(1) The whole device is arranged into a sealing system, so that the scattered exhaust of smoke is effectively avoided, and the safety and the environmental protection effect of deslagging are greatly improved;
(2) The bottom of the slag discharging furnace is provided with a slag conveying device, so that the phenomenon that refined vanadium slag is blocked in the furnace and cannot be discharged is avoided, and the slag conveying device has the stirring function and the downward slag conveying function, so that the refined vanadium slag is effectively prevented from being blocked;
(3) By arranging the pulse discharging device, when the refined vanadium slag is agglomerated, the gas source provides gas with preset pressure and is instantaneously introduced into the slag discharging port to break the agglomerated slag at the bottom so as to discharge the agglomerated slag downwards;
(4) By arranging the slag discharge port sealing device, the sealing at the high temperature of about 300 ℃ in the operation process can be satisfied, and the sealing of titanium tetrachloride liquid in the furnace can be realized;
(5) Through setting up negative pressure system, realized the pressure balance in sealed space at the sediment in-process of arranging, be convenient for normally unloading, the downshift smoothly of material in the stove, simultaneously, also can suck the produced waste gas in the sediment later stage, waste gas harm staff health when avoiding the follow-up slag ladle that changes.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of the overall structure of a closed slag discharging system according to an embodiment of the present utility model;
FIG. 2 is a partial enlarged view of a slag conveying device illustrating an exemplary closed slag discharge system;
fig. 3 is a flow chart of a closed slag removal method according to one embodiment of the utility model.
List of reference numerals
100 slag conveying devices, 110 stirrers, 120 spiral slag discharging components, 121 spiral shafts, 122 spiral belts, 200 slag discharging port sealing devices, 300 pulse discharging devices, 400 receiving valves, 500 slag discharging hoppers, 600 negative pressure systems, 610 negative pressure control valves, 620 negative pressure fans and LT furnace bodies.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terms used in the specification are used herein for the purpose of describing particular embodiments only and are not intended to limit the present utility model, for example, the orientations or positions indicated by the terms "length", "width", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are orientations or positions based on the drawings, which are merely for convenience of description and are not to be construed as limiting the present utility model.
The terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion; the terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.
In the description of the utility model and the claims and the above figures, when an element is referred to as being "fixed" or "mounted" or "disposed" or "connected" to another element, it can be directly or indirectly on the other element. For example, when an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element.
Furthermore, references herein to "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Fig. 1 shows a general structural schematic diagram of a closed slag discharging system according to an embodiment of the present utility model. As shown in the drawing, the closed slag discharging system generally comprises a slag conveying device 100, a slag discharging opening sealing device 200, a pulse discharging device 300, a material receiving valve 400, a slag discharging hopper 500 and a negative pressure system 600.
To assist in the description, fig. 1 shows a bottom structure of a slag discharging furnace. The slag discharging furnace comprises a furnace body LT, and a cylindrical slag discharging port extending downwards is arranged at the bottom of the LT. The slag conveying device 100 is arranged at the bottom of the slag discharging furnace. The slag conveying device 100 rotates and stirs, and can realize the functions of loosening slag and promoting discharge.
The slag discharge port sealing device 200 is positioned below the slag discharge port of the slag discharge furnace. The slag tap sealing device 200 mainly comprises a main body and a sealing mechanism. The main body defines a sealed cavity in sealed communication with the slag discharge opening, and the sealing mechanism is disposed within the sealed cavity and is switchable between a first position sealing the slag discharge opening and a second position opening the slag discharge opening.
The pulse discharging device 300 generally includes a gas source located outside the main body and a pipe extending into the sealed cavity, the gas outlet of the pipe being directed toward the slag discharge port to emit high pressure gas toward the slag discharge port to break up agglomerated slag.
The receiving valve 400 is hermetically connected below the slag hole sealing device 200, and is used for controlling the downward discharging operation of the slag hole sealing device 200. That is, when the receiving valve 400 is closed, the slag discharged from the slag discharge port and introduced into the sealing cavity of the slag discharge port sealing device 200 cannot be discharged outside the sealing cavity. When the receiving valve 400 is opened, the slag discharged from the slag discharge port may be discharged outside the sealing chamber.
The slag discharging hopper 500 is hermetically connected to the lower side of the material receiving valve 400 and receives the slag discharged through the slag discharging port.
The negative pressure system 600 is communicated with the interior of the slag discharge hopper 500, and the negative pressure system 600 has the functions of ensuring the internal pressure balance of the closed system during normal slag discharge on one hand, smoothly moving down the slag in the furnace, and sucking the waste gas produced during the slag discharge process in the slag discharge hopper 500 during the later stage of slag discharge on the other hand, so as to facilitate the treatment.
Through adopting above-mentioned structure, the whole set of device sets up sealing system, has effectively avoided the flue gas to scatter, has greatly improved the security and the environmental protection effect of arranging the sediment.
In some embodiments, as shown in fig. 2, the slag conveying device 100 includes an agitator 110 and a screw slag discharging unit 120. The stirrer 110 is disposed at the bottom of the slag discharging furnace, and includes a central shaft and stirring blades, and the stirring blades may be disposed in a plurality of groups, and the size thereof may be designed according to the size of the space at the bottom of the slag discharging furnace. The screw slag discharging part 120 is disposed in the chute of the slag discharging port, and may include a screw shaft 121 fixedly connected to the central shaft and a screw belt 122 installed on the screw shaft 121. The twist direction of the ribbon 122 is set such that when the agitator 120 rotates in a forward direction, the ribbon 122 rotates with the agitator 110 and has a loosening effect on the slag in the chute without pressing the slag downward, and when the agitator 110 rotates in a reverse direction, the ribbon 122 rotates with the agitator 110 and presses the slag in the chute downward to promote the slag discharge. The forward rotation and the reverse rotation of the stirrer 110 of the slag discharging furnace may be controlled by a remote controller to control the discharging of the slag discharging furnace. In the evaporation process (without discharging), the slag discharging furnace stirrer 110 is controlled to rotate forward, and the stirrer screw belt runs in the reverse direction and does not discharge, but can have a loosening effect on the materials in the chute, so that the blockage is avoided; when slag is required to be discharged, the stirrer 110 is adjusted to be reversed, the stirrer 110 is in a forward discharging mode, and under the action of the screw belt 122, the materials in the furnace are driven to move forward to discharge the slag.
In some embodiments, the slag tap sealing device 200 includes a body and a sealing mechanism. The body may include a housing made of steel defining a sealed cavity in sealed communication with the slag discharge opening. For example, the top of the shell can be provided with an opening matched and butted with the slag discharging opening, and the opening and the slag discharging opening can be fixedly and hermetically connected through a flange, a bolt and other parts. The sealing mechanism is arranged in the sealing cavity. The sealing mechanism may be a pneumatic flap valve. Adopts a metal flap valve mode and utilizes the soft and hard metal sealing principle. The valve body of the flap valve is driven to be opened and closed by an external pneumatic driving device, the valve body turns over and runs in 90-degree arc, and liquid-solid sealing in a high-temperature state is realized by metal hard sealing and peripheral rubber soft sealing.
In some embodiments, pulse take off device 300 employs a nitrogen gun. The nitrogen cannon has a source of nitrogen gas, which may be a tank containing nitrogen gas at a pressure of 0.5-0.6 MPa. An electromagnetic pulse valve can be arranged on a pipeline of the nitrogen gun, which is communicated with the sealing cavity, and the electromagnetic pulse valve is opened, so that nitrogen with preset pressure is instantaneously communicated with the pipeline and impacts the slag discharge port, and the agglomeration slag is crushed. By arranging the pulse discharging device 300, when the refined vanadium slag is agglomerated, the gas source provides gas with preset pressure and is instantaneously introduced into the slag discharging port, so that the agglomerated slag at the bottom is crushed and is discharged downwards.
In some embodiments, the charge valve 400 may employ a metal ball valve. The material receiving valve 400 mainly serves to connect the lower closed slag discharging hopper 500 and the upper discharging system. After the slag discharge is finished, the material receiving valve 400 is closed, so that the upper material and the ash bucket at the lower part are effectively separated, the safety and stability in the production process are ensured, the safety risk of scalding due to material falling in the process of replacing the slag bucket (slag pot) is avoided, and the structure is used as a safety measure to further improve the operation safety.
In some embodiments, the slag discharge hopper 500 includes a slag pot and a number of auxiliary connection structures above it, such as a flange for interfacing with the receiving valve 400, a flange for connecting with the breathing conduit of the negative pressure system 600, and the like. The slag pot can be designed as a cylindrical slag discharge hopper, and the slag pot can be made of ordinary carbon steel. The volume of the slag pot is designed according to the production process system and the site, so that the storage slag can be ensured to effectively contain vanadium slag. After deslagging, when the front slag pot is full, the slag pot can be removed and another slag pot can be replaced.
In some embodiments, the negative pressure system 600 includes a negative pressure control valve 610 and a negative pressure fan 620, the negative pressure control valve 610 being disposed on the breathing conduit between the negative pressure fan 620 and the slag discharge hopper 500. The frequency of the negative pressure fan 620 is adjustable. During normal discharging operation, the negative pressure fan 620 operates at a lower first frequency to ensure pressure balance in the closed system, and the material in the furnace moves down smoothly while ensuring that the material is not pumped out by the negative pressure system in a large amount. The first frequency may be set to 30Hz. When it is confirmed that the slag discharge is completed, the slag discharge port sealing device 200 is closed, and the negative pressure fan 620 is operated at a second frequency increased to absorb the exhaust gas in the slag discharge hopper 500, and the pressure head of the negative pressure fan 620 can be controlled to about-3 kPa.
Optionally, in some embodiments, the system may further comprise an exhaust treatment device. The exhaust gas treatment device may be connected to an exhaust port of the negative pressure fan 620 and absorb exhaust gas generated by the slag discharge. The tail gas treatment device may use, for example, water as the absorption medium, which may be used depending on the actual process situation.
The utility model also provides a method for closed deslagging by using the system. The method generally comprises the steps of:
step S1: confirming that ore pulp furnace materials in a slag discharging furnace are evaporated to dryness, and having slag discharging conditions;
step S2: opening the receiving valve 400, closing the negative pressure system 600, opening the slag discharging port sealing device 200, starting the slag conveying device 100 to discharge slag, and observing the slag discharging condition;
step S3: if the slag discharge is not smooth, the material receiving valve 400 is closed, the pulse discharging device 300 is started to clear and loosen the blocking point, and after the loosening is finished, the material receiving valve 400 is opened to continue slag discharge;
step S4: if the slag discharge is normal, the negative pressure system 600 is started and operated at a first frequency to ensure the pressure balance of the closed slag discharge system;
step S5: after the completion of the slag discharge is confirmed, the slag discharge port sealing device 200 is closed, the negative pressure system 600 is operated at the second frequency raised to absorb the exhaust gas in the slag discharge hopper 500, after the exhaust gas absorption is completed, the top breathing pipe and the discharging pipe flange of the slag discharge hopper 500 are removed, the slag pot is carried away, a new slag pot is replaced, and the next slag discharge is waited.
The preferred embodiments of the present utility model have been described in detail above, but the present utility model is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present utility model within the scope of the technical concept of the present utility model, and all the simple modifications belong to the protection scope of the present utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (9)
1. A closed slag removal system, comprising:
the slag conveying device is arranged at the bottom of the slag discharging furnace and rotates and stirs;
the slag discharge port sealing device is positioned below the slag discharge port of the slag discharge furnace and comprises a main body and a sealing mechanism, wherein the main body defines a sealing cavity which is communicated with the slag discharge port in a sealing way, and the sealing mechanism is arranged in the sealing cavity and can be switched between a first position for sealing the slag discharge port and a second position for opening the slag discharge port;
the pulse discharging device comprises an air source and a pipeline, the pipeline extends into the sealing cavity, and the air outlet faces the slag discharge port;
the material receiving valve is connected to the lower part of the slag discharging port sealing device in a sealing way and controls the downward discharging operation of the slag discharging port sealing device;
the slag discharging hopper is connected to the lower part of the material receiving valve in a sealing way and receives the material slag discharged through the slag discharging port;
the negative pressure system is communicated with the interior of the slag discharge hopper.
2. The closed slag removal system of claim 1, wherein the slag delivery means comprises:
a stirrer comprising a central shaft and stirring blades; and
the spiral slag discharging component is arranged in the slag discharging port chute and comprises a spiral shaft fixedly connected with the central shaft and a spiral belt arranged on the spiral shaft.
3. The closed slag discharging system according to claim 2, wherein the central shaft is rotatable in both forward and reverse directions, and the twisting direction of the screw belt is set such that when the stirrer rotates forward, the screw belt rotates with the stirrer and has a loosening effect on slag in the chute without pressing slag downwards, and when the stirrer rotates reversely, the screw belt rotates with the stirrer and presses slag in the chute downwards to promote slag discharge.
4. The closed slag removal system of claim 1, wherein the sealing mechanism is a pneumatic flap valve.
5. The closed slag discharging system of claim 1, wherein said pulse discharging means comprises a nitrogen gun and an electromagnetic pulse valve.
6. The closed slag discharging system as set forth in claim 1, wherein said receiving valve is a metal ball valve.
7. The closed slag discharging system as claimed in claim 1, wherein the negative pressure system comprises a negative pressure control valve and a negative pressure fan, the negative pressure control valve being disposed on a pipe between the negative pressure fan and the slag discharging hopper.
8. The closed slag discharging system of claim 7, wherein the frequency of said negative pressure fan is adjustable.
9. The closed slag removal system of claim 7, further comprising an exhaust gas treatment device coupled to the exhaust port of the negative pressure fan and absorbing exhaust gas from slag removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163814.4U CN220454282U (en) | 2023-08-11 | 2023-08-11 | Closed slag discharging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322163814.4U CN220454282U (en) | 2023-08-11 | 2023-08-11 | Closed slag discharging system |
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| Publication Number | Publication Date |
|---|---|
| CN220454282U true CN220454282U (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202322163814.4U Active CN220454282U (en) | 2023-08-11 | 2023-08-11 | Closed slag discharging system |
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- 2023-08-11 CN CN202322163814.4U patent/CN220454282U/en active Active
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