CN114703329A - Device and method for preparing molten iron heat-preservation slagging agent for iron making - Google Patents
Device and method for preparing molten iron heat-preservation slagging agent for iron making Download PDFInfo
- Publication number
- CN114703329A CN114703329A CN202210310910.4A CN202210310910A CN114703329A CN 114703329 A CN114703329 A CN 114703329A CN 202210310910 A CN202210310910 A CN 202210310910A CN 114703329 A CN114703329 A CN 114703329A
- Authority
- CN
- China
- Prior art keywords
- screening
- spiral
- bin body
- powder
- preservation
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/02—General features in the manufacture of pig-iron by applying additives, e.g. fluxing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
- B07B13/11—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
Abstract
The invention provides a device and a method for preparing a molten iron heat-preservation slagging agent for iron making, which comprises a mixing device, a tubular granulating device and a composite separating device; the composite separation device comprises a screening bin body; a spiral screening mechanism is axially and rotatably arranged in the screening bin body, the spiral screening mechanism comprises a supporting barrel and screening spiral sheets arranged along the circumferential direction of the supporting barrel, and a material blocking mechanism is arranged between the lower edges of the screening spiral sheets and the supporting barrel; the outer diameter of the screening spiral sheet is matched with the inner diameter of the screening bin body, and the screening spiral sheet is a mesh plate; the circumference of the bin wall of the screening bin body corresponds to the spiral screening mechanism and is provided with a plurality of wave guide ports, and the wave guide ports are correspondingly connected with an ultrasonic generator. The preparation device disclosed by the invention is compact in structure, can realize the efficient separation of the granules and the powder in the heat-preservation slagging agent, realizes the roasting and solidification of the heat-preservation slagging agent granules, reduces the floor occupation of a factory building, and improves the production efficiency of heat-preservation slagging agent granules.
Description
Technical Field
The invention relates to the technical field of slagging agents, in particular to a device and a method for preparing a molten iron heat-preservation slagging agent for iron making.
Background
The blast furnace ironmaking inevitably generates a large amount of iron slag and generates foam, the inherent physical properties and process conditions of the iron slag determine that the iron slag is easy to be bonded and deposited in a molten iron channel wall, a molten iron tank, a torpedo tank and a metal mixer, so that the service life of ironmaking equipment is reduced, and therefore, a large amount of heat-insulating slag melting agent is required to be used in the ironmaking production process to realize the defoaming and slag melting heat insulation of the molten iron. The existing heat-preservation slagging agent mainly comprises carbonized materials such as graphite, coal ash and the like, and also comprises powder containing calcium oxide, magnesium oxide or aluminum oxide, and the production process mainly comprises the working procedures of raw material powder making → material mixing → granulation → roasting → sieving and the like, wherein the working procedures of roasting and sieving usually need to be matched with a conveyor or a lifter, so that the flow of the preparation working procedure of the heat-preservation slagging agent is long, the occupied workshop area is large, and the solidification and separation efficiency of heat-preservation slagging agent granules is low.
Disclosure of Invention
In view of the above, the invention provides a device and a method for preparing a molten iron heat-preservation slagging agent for iron making, so as to solve various problems in the prior art.
In order to solve the technical problem, the invention provides a device for preparing a molten iron heat-preservation slagging agent for iron making, which comprises a mixing device, a tubular granulating device and a composite separating device, wherein the mixing device is arranged on the mixing device;
the composite separation device comprises a screening bin body and a bin top arranged in a separation mode; a spiral screening mechanism is axially and rotatably arranged in the screening bin body, the spiral screening mechanism comprises a supporting barrel and screening spiral sheets arranged along the circumferential direction of the supporting barrel, and a material blocking mechanism is arranged between the lower edges of the screening spiral sheets and the supporting barrel; the outer diameter of the screening spiral sheet is matched with the inner diameter of the screening bin body, and the screening spiral sheet is a mesh plate; a screening motor for driving the rotary screening mechanism to rotate is arranged at the top of the bin;
a feeding chute (403) is arranged on one side of the bin top (402) and above the spiral screening mechanism, at least one group of aggregate discharging pipes (407) is arranged on the outer wall of the screening bin body (401) and corresponding to the material blocking mechanism on the lower side of the screening spiral sheet, and at least one group of powder discharging pipes (408) is arranged on the outer wall of the screening bin body and corresponding to the lower side of the spiral screening mechanism;
the circumference of the bin wall of the screening bin body corresponds to the spiral screening mechanism and is provided with a plurality of wave guide ports, and ultrasonic generators are correspondingly connected with the wave guide ports.
Preferably, the top of the supporting cylinder is circumferentially arranged on a receiving disc tangent to the upper edge of the screening spiral piece, and a discharging opening for granular materials to pass through is formed between the receiving disc and the tangent of the upper edge of the screening spiral piece; the upper edges of the bearing disc and the screening spiral sheet are matched with the inner diameter of the bin top, and the bearing disc is a mesh plate.
Preferably, the material blocking mechanism is a screening disc which is arranged at the bottom of the supporting cylinder in the circumferential direction and is tangent to the lower edge of the screening spiral sheet; the lower parts of the screening disc and the screening spiral sheet are matched with the inner diameter of the screening bin body, and the screening disc is a mesh plate.
Preferably, the screening bin body is divided into an upper drying bin body and a lower screening bin body by a screening disc; an annular clamping rail is arranged between the upper end of the screening bin body and the lower end of the drying bin body, and the screening disc is rotatably arranged on the annular clamping rail.
Preferably, the striker mechanism is along supporting barrel lateral wall axial and with the terminal vertically striker plate of screening spiral piece, striker plate upper end extends to the screening spiral piece lower edge that corresponds with it.
Preferably, the granule blanking pipe (407) comprises three groups arranged at equal intervals along the circumference of the screening bin body; the powder blanking pipe (408) comprises three groups which are arranged at equal intervals along the circumferential direction of the shielding screening bin body; the granule blanking pipe and the powder blanking pipe are arranged in a staggered mode.
Preferably, the bottom of the screening bin body is provided with a conical dust collection hood which is convex upwards and corresponds to the lower part of the spiral screening mechanism.
Preferably, the bottom of the screening bin body is also provided with a vibrating disc, and the center of the vibrating disc is provided with a motor mounting seat; a vibration motor is arranged in the motor mounting seat;
the bottom of the vibration disk is provided with a support base, and the upper end of the support base is circumferentially connected with the vibration disk through a plurality of groups of elastic connecting pieces.
Preferably, the elastic connecting piece comprises a connecting bolt assembly for connecting the supporting base and the vibrating disk and a supporting spring sleeved on the screw rod; the vibration disk and the support base are tightly pressed at two ends of the support spring.
A preparation method of a molten iron heat-preservation slagging agent for iron making, which uses the molten iron heat-preservation slagging agent preparation device as claimed in claim 1, and comprises the following steps according to the process flow sequence:
step 1: adding the heat-preservation slagging agent powder with the proportion into a mixing device in a classifying manner to be uniformly mixed, and discharging the uniformly mixed heat-preservation slagging agent powder through the discharge end of the mixing device;
step 2: discharging the uniformly mixed heat-preservation slagging agent powder to a tubular granulating device, and adding a binder into the tubular granulating device to prepare the heat-preservation slagging agent powder into granules with uniform particle size;
and step 3: the granular material containing powder enters a screening bin body of the composite separation device through a feeding chute and is firstly discharged to the upper edge of a screening spiral sheet;
and 4, step 4: the screening motor drives the spiral screening mechanism to rotate, and the granular material containing the powder moves downwards along with the rotation of the screening spiral sheet;
and 5: along with the downward movement of the granular material containing the powder, an ultrasonic generator arranged on the outer wall of the screening bin body works to heat and roast the powder and the granular material;
step 6: along with the downward process of the granular materials containing the powder, the screening spiral plate realizes the separation of the granular materials and the powder, the granular materials are discharged through a granular material discharging pipe, and the powder is deposited at the bottom of a screening bin body and is discharged through a powder discharging pipe.
The technical scheme of the invention at least comprises the following technical effects:
1. according to the device for preparing the molten iron heat-preservation slagging agent, the space utilization rate of a production workshop can be improved, and the floor area occupation of a factory building is reduced; the preparation process of the heat-preservation slagging agent is shortened, and the production efficiency of heat-preservation slagging agent particles is improved;
2. the composite separation device of the embodiment of the application has a compact structure, can realize the efficient separation of the granular materials and the powder materials in the heat-preservation slagging agent, and can prolong the retention time of the granular materials in the roasting cavity by the spiral screening mechanism, so that the roasting and solidification of the granular materials of the heat-preservation slagging agent can be efficiently realized;
3. the receiving disc arranged on the upper edge of the screening spiral piece is used for receiving powder-containing granules from the discharging chute, and the powder in the particle size can be separated on the receiving disc; in addition, the receiving disc can limit the starting point of downward movement of the granular materials, only can pass through the receiving disc and the feed opening on the upper edge of the screening spiral piece in sequence, and can limit the falling height of the granular materials, so that the unfired and solidified granular materials are guaranteed to be crushed greatly due to falling, and the forming rate of the granular materials is improved;
4. the spiral screening mechanism provided by the embodiment of the application is characterized in that the screening disc arranged on the lower side of the screening spiral sheet can be used for further screening and temporarily storing, and the screening disc can throw the granular materials accumulated on the screening disc to the granular material discharging pipe in the rotating process of the spiral screening mechanism, so that the spiral screening mechanism is particularly suitable for a plurality of granular material discharging pipes arranged on the screening bin in the circumferential direction, and can efficiently realize the discharging of the heat-preservation slagging agent;
5. according to the spiral screening mechanism, the structure formed by the material baffle plate, the screening spiral piece and the supporting cylinder body, which is arranged on the lower side of the screening spiral piece, can pocket the granules, and when the spiral screening mechanism rotates, a part or all of the granules can be discharged when the spiral screening mechanism corresponds to the granule discharging pipe;
6. the conical dust collection cover arranged at the bottom of the screening bin body in the embodiment of the application can facilitate the powder passing through the screening spiral sheet or the screening disc to gather to the outer circumference of the screening bin body, so as to facilitate the discharge of the powder;
7. the vibrating structure that this application embodiment cooperated to set up bottom the screening storehouse body can provide plumbous vertical vibration power for the screening storehouse body and inside spiral screening mechanism to improve spiral screening mechanism's screening efficiency, and the elastic connection spare of this kind of setting can reduce composite separation device at horizontal vibration, thereby guarantee composite separation device's stability.
Drawings
FIG. 1 is a front view of a device for preparing a heat-insulating slag melting agent according to an embodiment of the present application;
FIG. 2 is a front view of a compound detachment mechanism according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the internal structure of the composite separating mechanism according to the embodiment of the present application;
FIG. 4 is a top view of a composite separating mechanism according to an embodiment of the present application;
FIG. 5 is a schematic structural view of an embodiment of the spiral screening mechanism of the present application;
FIG. 6 is a schematic structural view of another embodiment of the spiral screening mechanism of the present application; .
Reference numerals:
100. a device for preparing a heat-preservation slagging agent; 1. a production workshop; 101. a steel framework; 102. a floor slab; 2. a mixing device; 3. a granulation device;
4. a composite separation device; 401. screening a bin body; 402. the top of the silo; 403. a feed chute; 404. a screening motor; 405. quickly connecting a buckle; 406. an ultrasonic generator; 407. a pellet discharge pipe; 408. a powder blanking pipe; 409. an elastic connecting member; 410. a support base; 411. a wave guide port; 412. drying the bin body; 413. a spiral screening mechanism; 4131. a connecting shaft; 4132. a bearing plate; 4133. screening the spiral sheet; 4134. a support cylinder; 4135. screening the disc; 4136. a feeding port; 4137. a striker plate; 414. screening a bin body; 415. an annular clamping rail; 416. a dust cage; 417. a support spring; 418. a connecting bolt assembly; 419. a motor mounting seat; 420. a vibration motor; 421. the disc is vibrated.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the embodiments of the present application, as shown in fig. 1-6: the heat-preservation slagging agent preparation device 100 for the molten iron for iron making comprises a mixing device 2, a tubular granulating device 3 and a composite separating device 4; the production workshop 1 comprises a factory building steel framework 101 and floor slabs 102 which are arranged in the factory building steel framework in a layered mode, and the mixing device 2, the tubular granulating device 3 and the composite separating device 4 are arranged on different floor slabs from high to low in a layered mode;
the composite separation device 4 comprises a screening bin body 401 and a bin top 402 which is arranged in a separating manner, wherein the upper edge of the screening bin body and the lower edge of the bin top are outwards turned over to form flanges, the flanges of the screening bin body and the bin body are fixed through a quick-connection buckle 405, so that the screening bin body and the bin top are opened or closed, and cleaning or replacement and maintenance of mechanical equipment in the screening bin body are facilitated; a spiral screening mechanism 413 is axially and rotatably arranged in the screening bin body 401, the spiral screening mechanism 413 comprises a supporting cylinder 4134 and screening spiral sheets 4133 arranged along the circumferential direction of the supporting cylinder, a material blocking mechanism is arranged between the lower edges of the screening spiral sheets and the supporting cylinder, and the material blocking mechanism can block the particle size of the lower edges of the screening spiral sheets and prevent granules from falling into the powder bin; the outer diameter of the screening spiral piece 4133 is matched with the inner diameter of the screening bin body 401, and the screening spiral piece is a mesh plate, namely the outer circumference of the screening spiral piece is attached to the inner wall of the screening bin body, so that the screening spiral piece is prevented from being damaged by granular materials entering gaps; the bin top 402 is provided with a screening motor 404 for driving the rotary screening mechanism to rotate, and the screening motor can drive the bolt screening mechanism to rotate, so that the granules continuously pass through the screening spiral sheet to descend to the lower part of the screening bin body and are discharged out of the bin body; a feeding chute 403 is arranged on one side of the bin top 402 above the spiral screening mechanism, at least one group of aggregate discharging pipes 407 are arranged on the outer wall of the screening bin body 401 and correspond to a material blocking mechanism on the lower side of the screening spiral sheet, at least one group of powder discharging pipes 408 are arranged on the outer wall of the screening bin body and correspond to the lower side of the spiral screening mechanism, and the powder discharging pipes are connected with negative-pressure dust collecting equipment, so that a negative-pressure environment can be provided in the screening bin body; the granular material containing the powder enters the screening bin body from the feeding chute, and the granular material containing the powder can be separated from the granular material in the descending process along with the screening spiral plate; a plurality of wave guide ports 411 are formed in the circumferential direction of the bin wall of the screening bin body 401 and correspond to the spiral screening mechanism, a filter screen is arranged on the inner side of each wave guide port, and an ultrasonic generator 406 is connected with each wave guide port correspondingly; the ultrasonic generator can roast the granules or granules staying on the screening spiral sheet, thereby efficiently realizing the roasting and solidification of the heat-preservation slagging agent granules. In this embodiment, compound separator compact structure not only can realize the high-efficient separation of aggregate and powder in the heat preservation slagging agent, and spiral screening mechanism can prolong the dwell time of aggregate in the calcination cavity to the calcination solidification of heat preservation slagging agent aggregate is realized to the efficient, shortens the preparation procedure of heat preservation slagging agent, reduces the occupation to the workshop place, improves the production efficiency of heat preservation slagging agent granule.
In one embodiment of the present application, as shown in fig. 5 or fig. 6, the top of the supporting cylinder 4134 is circumferentially provided with a receiving disc 4132 tangential to the upper edge of the sieving spiral sheet, and a discharge opening 4136 for passing the granular material is formed between the receiving disc 4132 and the tangential line of the upper edge of the sieving spiral sheet; the upper edges of the receiving disc 4132 and the screening spiral piece 4133 are matched with the inner diameter of the bin top 402, and the receiving disc is a mesh plate. In the embodiment, the receiving disc arranged on the upper edge of the screening spiral piece is used for receiving the powder-containing aggregate from the feeding chute, and the separation of the powder in the particle size can be realized on the receiving disc; in addition, the receiving disc can limit the starting point of downward movement of the granular materials, only can pass through the receiving disc and the feed opening on the upper edge of the screening spiral piece in sequence, and limit the falling height of the granular materials, so that the unfired solidified granular materials are guaranteed to be greatly crushed due to falling, and the forming rate of the granular materials is improved.
In an embodiment of the present application, as shown in fig. 5, the material blocking mechanism is a screening disk 4135 which is arranged at the bottom of the supporting cylinder 4134 in the circumferential direction and tangent to the lower edge of the screening spiral sheet; the lower parts of the screening disk 4135 and the screening spiral sheet 4133 are matched with the inner diameter of the screening cabin body 401, and the screening disk 4135 is a mesh plate. In this embodiment, this kind of structure's spiral screening mechanism, the granule that descends to its low side from the screening flight can pile up on the screening dish, not only can further sieve, can be temporary moreover saves to along with spiral screening mechanism rotation in-process, throw the granule that accumulates on the screening dish to granule unloading pipe, be particularly useful for screening feed bin circumference and be equipped with a plurality of granule unloading pipes, can realize the ejection of compact of heat preservation slagging medium with the efficient.
In another embodiment of the present application, as shown in fig. 3 and 5, the screening cartridge 401 is divided into an upper drying cartridge 412 and a lower screening cartridge 414 by a screening tray 4135; an annular clamping rail 415 is arranged between the upper end of the screening bin body 414 and the lower end of the drying bin body 412, and the screening disk 4135 is rotatably arranged on the annular clamping rail 415. In the embodiment, the joint of the drying bin body and the screening bin body is provided with the turning edge, the drying bin body and the screening bin body are fixedly connected through the quick-connecting buckle clamping turning edge, and the arrangement can conveniently realize the arrangement of the annular clamping rail; the annular clamping rail can stably support the spiral screening mechanism, so that the load of the spiral screening mechanism is reduced.
In an embodiment of the present application, as shown in fig. 6, the material blocking mechanism is a material blocking plate 4137 which is axially arranged along the outer side wall of the support cylinder and perpendicular to the end of the sieving spiral piece, and the upper end of the material blocking plate 4137 extends to the lower edge of the sieving spiral piece corresponding to the upper end. In the embodiment, the structure formed by the material baffle plate, the screening spiral sheet and the support cylinder can pocket the granules, and when the structure rotates along with the spiral screening mechanism and corresponds to the granule blanking pipe, a part or all of the granules can be discharged; in addition, the annular clamping rail is also suitable for the spiral screening mechanism with the structure, and the spiral screening mechanism can be supported, so that the working load of the spiral screening mechanism is reduced.
In another embodiment of the present application, as shown in fig. 4, the granule discharging pipe 407 comprises three groups arranged at equal intervals along the circumference of the screening bin body; the powder blanking pipe 408 comprises three groups which are arranged at equal intervals along the circumferential direction of the covering and screening bin body; the granule blanking pipe and the powder blanking pipe are arranged in a staggered mode. In the embodiment, the inserting plates can be arranged between the powder discharging pipe and the screening bin and between the aggregate discharging pipe and the outer wall of the screening bin, so that the quantity of the powder discharging pipes or the aggregate discharging pipes can be selected; the composite separation device can be used for conveniently and respectively collecting the granular materials and the powder materials.
Based on the above embodiments, as shown in fig. 3, the bottom of the sieving bin 401 is provided with a conical dust collecting hood 416 protruding upwards corresponding to the lower part of the spiral sieving mechanism; the connecting shaft 4131 arranged at the lower edge of the supporting cylinder body can support and rotatably arrange the top of the conical dust collection cover. In the embodiment, the conical dust collection cover can facilitate the powder passing through the screening spiral plate or the screening disc to gather towards the outer circumference of the screening bin body, so as to facilitate the discharge of the powder.
In an embodiment of the present application, as shown in fig. 1-2, a vibration disc 421 is further disposed at the bottom of the screening bin body 401, and a motor mounting seat 419 is disposed in the center of the vibration disc 421; a vibration motor 420 is arranged in the motor mounting seat 419; the bottom of the vibration disk 421 is provided with a support base 410, and the upper end of the support base is circumferentially connected with the vibration disk through a plurality of groups of elastic connecting pieces 409; the elastic connecting piece 409 comprises a connecting bolt assembly 418 for connecting the supporting base and the vibrating disk and a supporting spring 417 sleeved on the screw rod; the vibration disk and the support base are tightly pressed at two ends of the support spring. In this embodiment, the vibrating structure that sets up in the cooperation of screening storehouse body bottom can provide plumbous vertical vibration power for the screening storehouse body and inside spiral screening mechanism to improve spiral screening mechanism's screening efficiency, and the elastic connecting piece of this kind of setting can reduce the vibration of composite separation device in horizontal, thereby guarantee composite separation device's stability.
In another embodiment of the present application, there is provided a method for preparing a molten iron holding slag melting agent for iron making, using the apparatus for preparing a molten iron holding slag melting agent according to claim 1, comprising the following steps in the order of process flow:
step 1: the heat-preservation slagging agent powder with the proportion is added into the mixing device 2 in a classified manner and mixed uniformly, and the uniformly mixed heat-preservation slagging agent powder is discharged from the discharge end of the mixing device 2;
and 2, step: discharging the uniformly mixed heat-preservation slagging agent powder to a tubular granulating device 3, and adding a binder into the tubular granulating device 3 to prepare the heat-preservation slagging agent powder into granules with uniform particle size;
and step 3: the granular material containing powder enters a screening bin body 401 of the composite separation device through a feeding chute 403, and firstly falls to the upper edge of a screening spiral sheet 4133;
and 4, step 4: the screening motor drives the spiral screening mechanism 413 to rotate, and the granular materials containing the powder move downwards along with the rotation of the screening spiral piece 4133;
and 5: along with the downward movement of the granular material containing the powder, an ultrasonic generator arranged on the outer wall of the screening bin body works to heat and roast the powder and the granular material;
step 6: along with the downward movement of the granular material containing the powder, the screening spiral plate realizes the separation of the granular material and the powder, the granular material is discharged through a granular material discharging pipe 407, and the powder is deposited at the bottom of the screening bin body and is discharged through a powder discharging pipe 408. In the embodiment, the heat-preservation slagging agent granules can be conveniently and efficiently solidified and molded, and the granules and the powder are separated, so that the quality of the finished heat-preservation slagging agent granules is ensured, and the powder is conveniently and efficiently recycled.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The foregoing is a preferred embodiment of the present invention, and it should be noted that modifications and embellishments can be made by those skilled in the art without departing from the principle of the present invention, and should be considered as the scope of the present invention.
Claims (10)
1. A molten iron heat preservation slagging medium preparation facilities for ironmaking, its characterized in that: comprises a mixing device (2), a tubular granulating device (3) and a composite separating device (4);
the composite separation device (4) comprises a screening bin body (401) and a bin top (402) which is arranged in a separating way; a spiral screening mechanism (413) is axially and rotatably arranged in the screening bin body (401), the spiral screening mechanism (413) comprises a supporting cylinder body (4134) and screening spiral sheets (4133) arranged along the circumferential direction of the supporting cylinder body, and a material blocking mechanism is arranged between the lower edge of each screening spiral sheet and the supporting cylinder body; the outer diameter of the screening spiral sheet (4133) is matched with the inner diameter of the screening bin body (401), and the screening spiral sheet is a mesh plate; the bin top (402) is provided with a screening motor (404) for driving the rotary screening mechanism to rotate;
a feeding chute (403) is arranged on one side of the bin top (402) and above the spiral screening mechanism, at least one group of aggregate discharging pipes (407) is arranged on the outer wall of the screening bin body (401) and corresponding to the material blocking mechanism on the lower side of the screening spiral sheet, and at least one group of powder discharging pipes (408) is arranged on the outer wall of the screening bin body and corresponding to the lower side of the spiral screening mechanism;
the circumference of the wall of the screening bin body (401) corresponds to the spiral screening mechanism and is provided with a plurality of wave guide ports (411), and the wave guide ports correspond to and are connected with an ultrasonic generator (406).
2. The apparatus of claim 1, wherein the apparatus comprises: the top of the supporting cylinder body (4134) is circumferentially provided with a receiving disc (4132) which is tangent to the upper edge of the screening spiral piece, and a discharging opening (4136) for granular materials to pass through is formed between the receiving disc (4132) and the tangent of the upper edge of the screening spiral piece; the upper edges of the bearing disc (4132) and the screening spiral sheet (4133) are matched with the inner diameter of the bin top (402), and the bearing disc is a mesh plate.
3. The apparatus of claim 1, wherein the apparatus comprises: the material blocking mechanism is a screening disc (4135) which is arranged at the bottom of the supporting cylinder (4134) in the circumferential direction and is tangent to the lower edge of the screening spiral sheet; the lower parts of the screening disk (4135) and the screening spiral sheet (4133) are matched with the inner diameter of the screening bin body (401), and the screening disk (4135) is a mesh plate.
4. The apparatus of claim 3, wherein the apparatus comprises: the screening bin body (401) is divided into an upper drying bin body (412) and a lower screening bin body (414) by a screening disc (4135); an annular clamping rail (415) is arranged between the upper end of the screening bin body (414) and the lower end of the drying bin body (412), and the screening disc (4135) is rotatably arranged on the annular clamping rail (415).
5. The apparatus of claim 1, wherein the apparatus comprises: the material blocking mechanism is a material blocking plate (4137) which is axially arranged along the outer side wall of the supporting cylinder and is perpendicular to the tail end of the screening spiral piece, and the upper end of the material blocking plate (4137) extends to the lower edge of the corresponding screening spiral piece.
6. The apparatus of claim 1, wherein the apparatus comprises: a feeding chute (403) is arranged on one side of the bin top (402) and above the spiral screening mechanism, three groups of aggregate discharging pipes (407) are arranged on the circumferential direction of the outer wall of the screening bin body (401) at equal intervals corresponding to the material blocking mechanism on the lower side of the screening spiral sheet, and three groups of powder discharging pipes (408) are correspondingly arranged on the circumferential direction of the outer wall of the screening bin body and below the spiral screening mechanism; the granule blanking pipe and the powder blanking pipe are arranged in a staggered mode.
7. The apparatus of claim 1, wherein the apparatus comprises: the bottom of the screening bin body (401) is provided with a conical dust collection cover (416) which is corresponding to the lower part of the spiral screening mechanism and protrudes upwards.
8. The apparatus of claim 1, wherein the apparatus comprises: the bottom of the screening bin body (401) is also provided with a vibration disc (421), and the center of the vibration disc (421) is provided with a motor mounting seat (419); a vibration motor (420) is arranged in the motor mounting seat (419);
the bottom of the vibration disk (421) is provided with a support base (410), and the upper end of the support base is connected with the vibration disk through a plurality of groups of elastic connecting pieces (409) in the circumferential direction.
9. The apparatus of claim 8, wherein the apparatus comprises: the elastic connecting piece (409) comprises a connecting bolt component (418) for connecting the supporting base and the vibrating disk and a supporting spring (417) sleeved on the screw rod; the vibration disk and the support base are tightly pressed at two ends of the support spring.
10. A preparation method of a molten iron heat-preservation slagging agent for iron making is characterized by comprising the following steps: the device for preparing the hot metal insulation slagging agent according to claim 1 comprises the following steps according to the process flow sequence:
step 1: the heat-preservation slagging agent powder with the proportion is added into the mixing device (2) in a classified manner and mixed uniformly, and the uniformly mixed heat-preservation slagging agent powder is discharged from the discharge end of the mixing device (2);
step 2: discharging the uniformly mixed heat-preservation slagging agent powder to a tubular granulating device (3), and adding a binder into the tubular granulating device (3) to prepare the heat-preservation slagging agent powder into granules with uniform particle size;
and step 3: the granules containing powder enter a screening bin body (401) of the composite separation device through a feeding chute (403), and are firstly discharged to the upper edge of a screening spiral sheet (4133);
and 4, step 4: the screening motor drives the spiral screening mechanism (413) to rotate, and the granular materials containing the powder move downwards along with the rotation of the screening spiral sheet (4133);
and 5: along with the downward movement of the granular material containing the powder, an ultrasonic generator arranged on the outer wall of the screening bin body works to heat and roast the powder and the granular material;
step 6: the separation of the granules from the powder is realized by the screening spiral plate along with the descending process of the granules containing the powder, the granules are discharged through a granule discharging pipe (407), and the powder is deposited at the bottom of the screening bin body and is discharged through a powder discharging pipe (408).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210310910.4A CN114703329A (en) | 2022-03-28 | 2022-03-28 | Device and method for preparing molten iron heat-preservation slagging agent for iron making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210310910.4A CN114703329A (en) | 2022-03-28 | 2022-03-28 | Device and method for preparing molten iron heat-preservation slagging agent for iron making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114703329A true CN114703329A (en) | 2022-07-05 |
Family
ID=82171620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210310910.4A Pending CN114703329A (en) | 2022-03-28 | 2022-03-28 | Device and method for preparing molten iron heat-preservation slagging agent for iron making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114703329A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158903A (en) * | 1996-12-03 | 1997-09-10 | 吕美竺 | Industrial production method of cold-cured pellet used directly for iron and steel smelting |
| US20040020326A1 (en) * | 2000-10-30 | 2004-02-05 | Tetuharu Ibaraki | Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities |
| CN204564521U (en) * | 2014-12-03 | 2015-08-19 | 江西三和金业有限公司 | A kind of multi-stage sealed synchronous screw sieve |
| CN109706289A (en) * | 2019-01-23 | 2019-05-03 | 铜陵市大明玛钢有限责任公司 | Roll inoxidizability covering slag and preparation method thereof |
| CN209663226U (en) * | 2018-11-06 | 2019-11-22 | 正大饲料(随州)有限公司 | A kind of granulator of automatic feed back |
| CN114131008A (en) * | 2021-11-30 | 2022-03-04 | 河南通宇冶材集团有限公司 | Efficient slagging agent for semisteel tank and preparation method thereof |
-
2022
- 2022-03-28 CN CN202210310910.4A patent/CN114703329A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158903A (en) * | 1996-12-03 | 1997-09-10 | 吕美竺 | Industrial production method of cold-cured pellet used directly for iron and steel smelting |
| US20040020326A1 (en) * | 2000-10-30 | 2004-02-05 | Tetuharu Ibaraki | Metal oxide-containing green pellet for reducing furnace, method for production thereof, method of reduction thereof, and reduction facilities |
| CN204564521U (en) * | 2014-12-03 | 2015-08-19 | 江西三和金业有限公司 | A kind of multi-stage sealed synchronous screw sieve |
| CN209663226U (en) * | 2018-11-06 | 2019-11-22 | 正大饲料(随州)有限公司 | A kind of granulator of automatic feed back |
| CN109706289A (en) * | 2019-01-23 | 2019-05-03 | 铜陵市大明玛钢有限责任公司 | Roll inoxidizability covering slag and preparation method thereof |
| CN114131008A (en) * | 2021-11-30 | 2022-03-04 | 河南通宇冶材集团有限公司 | Efficient slagging agent for semisteel tank and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2605409C2 (en) | Systems and methods for recycling steelmaking converter exhaust residue and products made thereby | |
| CN102989598B (en) | Method for separating fine powder from limestone | |
| CN115055270A (en) | Automatic screening system for producing alumina micropowder | |
| CN209544516U (en) | A kind of full automatic production equipment of anode material for lithium-ion batteries | |
| GB2070973A (en) | Moving bed gas filter | |
| CN213194581U (en) | Wind type refractory raw material particle sorting machine | |
| CN114703329A (en) | Device and method for preparing molten iron heat-preservation slagging agent for iron making | |
| CN107890989A (en) | Grains of sand sorting unit for building with crushing function | |
| CN109950466B (en) | Full-automatic production equipment for lithium ion battery anode material | |
| CN218797292U (en) | Flour production line is with retrieving circulating device | |
| CN208135500U (en) | A kind of dry-mixed mortar feeding device | |
| CN110666099B (en) | Special sand separating device | |
| CN1269970C (en) | System and method for recycling slag from stainless steel refiner | |
| CN211514732U (en) | Machine-made sand vertical mill and machine-made sand production process system | |
| CN210208523U (en) | Sand grain friction device for mechanical regeneration of used sand | |
| CN210635434U (en) | Automatic charging device for Czochralski monocrystalline silicon re-feeding barrel | |
| JP6399265B1 (en) | Conveyor system | |
| CN219943537U (en) | Large-block impurity removing device for calcium aluminate discharge end | |
| CN215217131U (en) | Pulverized coal bunker for rotary kiln for cement production | |
| CN218393819U (en) | Solid raw material screening machine | |
| CN209181501U (en) | A kind of rotary kiln sintered nickel minerals powder rotary unloading device | |
| CN218360563U (en) | Novel filtering structure is used in white alundum production | |
| CN216965318U (en) | Multistage screening plant of aluminium oxide granulation powder | |
| CN211636916U (en) | Magnetic separator for metal scraps | |
| CN212092647U (en) | Living beings saw-dust granule unloader |
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 |