CN212284372U

CN212284372U - Process system for producing steel slag powder by combining roller mill sand making machine and roller mill

Info

Publication number: CN212284372U
Application number: CN202021632009.1U
Authority: CN
Inventors: 何立春; 张进
Original assignee: Jiangsu Hejin Machinery Technology Co ltd
Current assignee: Jiangsu Hejin Machinery Technology Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-01-05
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a roller mill sand making machine, the process system of the roller mill joint production steel slag powder, including steel slag powder preparation system, be equipped with first unloading mechanism in the steel slag powder preparation system, the below of first unloading mechanism is equipped with first belt feeder, send to first reciprocating sieve after removing iron through first belt feeder with the material, one side of first reciprocating sieve is equipped with the cone crusher, the granule is not up to standard after the breakage sends into roller mill sand making machine again and makes the sand, the finished product sand that makes is sent into the vertical mill and is ground, the finished product material after the grinding sends into air tank pulse bag dust remover and carries out the dust removal processing, separate steel slag powder and dust, finished product steel slag powder adopts the air transportation silo to carry out the transport, the utility model relates to a rationally, the process is perfect, adopts the roller mill to make the powder after making the sand and then makes the powder, reduces the iron content in the raw materials, reduces the wearing and tearing of the equipment spare, the service life of the quick-wear parts is prolonged, the running efficiency of the equipment is improved, the energy consumption of the powder making equipment is greatly reduced, and the activity of the prepared steel slag powder is high.

Description

Process system for producing steel slag powder by combining roller mill sand making machine and roller mill

Technical Field

The utility model relates to a technical field of production steel slag powder specifically is a process systems of roller mill system sand machine, roller mill joint production steel slag powder.

Background

A byproduct in the steel-making process of steel slag. It is composed of various oxides formed by oxidizing impurities in pig iron, such as silicon, manganese, phosphorus, sulfur, etc. in the smelting process, and salts generated by the reaction of these oxides and solvent. Steel slag contains a plurality of useful components: 2 to 8 percent of metallic iron, 40 to 60 percent of calcium oxide, 3 to 10 percent of magnesium oxide and 1 to 8 percent of manganese oxide, so the iron-manganese composite material can be used as a ferrous metallurgy raw material. The mineral composition of the steel slag is mainly tricalcium silicate, and then dicalcium silicate, RO phase, dicalcium ferrite and free calcium oxide. The steel slag is clinker, is a remelted phase and has low melting temperature. When re-melting, the liquid phase is formed early and the fluidity is good. The steel slag includes 3 kinds of electric furnace steel slag, open-hearth steel slag and converter steel slag.

The steel slag tailings are ground into the steel slag powder by adopting a ball mill, a tube mill or a horizontal roller mill and the like at home and abroad, and the problem that the steel slag powder ground by using a domestic vertical mill is difficult to grind, the efficiency of the mill is improved, the product yield and the quality of the steel slag powder are improved, the power consumption and the energy consumption are reduced, the wear resistance of equipment is improved, the service life of the equipment is prolonged and the like is solved by solving the problem that the iron removal rate of the mill returns and the returns basically do not contain iron.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a process is perfect, adopts the roller to grind and carries out the powder process again after making the sand, reduces powder process equipment's working strength, makes powder process equipment's energy consumption greatly reduced, the high roller that the activity of the steel slag powder of preparation grinds the process systems of system sand machine, roller mill joint production steel slag powder to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a process system for producing steel slag powder by combining a roller mill sand making machine and a roller mill comprises a steel slag powder preparation system, wherein a feeding machine is arranged on the steel slag powder preparation system, a first belt machine is arranged below the feeding machine, a first iron remover is arranged on one side of the first belt machine, a second belt machine B is arranged at one end of the first belt machine, a first vibrating screen is arranged below the joint of the first belt machine and the second belt machine B, a second iron remover is arranged on one side of the second belt machine B, a second belt machine A is arranged on one side of the second belt machine B, a third iron remover is arranged on one side of the second belt machine A, the second belt machine A and the second belt machine B are arranged in a crossed mode, a cone crusher is arranged at one end of the second belt machine A and one end of the second belt machine B, one end of the second belt machine A is arranged at the top end of the cone crusher, and the other end of the second belt machine A is installed in a matched mode with the first vibrating screen, one end of a second belt conveyor B is arranged at the bottom end of the cone crusher, a third belt conveyor and a fourth belt conveyor are arranged below the first vibrating screen, a bin B is symmetrically arranged below the left end of the fourth belt conveyor, a fifth belt conveyor is arranged on one side below the bin B, a fourth iron remover is arranged on one side of the fifth belt conveyor, a roller mill sand making machine is arranged at the right end of the fifth belt conveyor, a second vibrating screen and a dust remover are arranged above one side of the roller mill sand making machine, the second vibrating screen and the dust remover are installed in a matched mode with the roller mill sand making machine, a sixth belt conveyor is arranged below the dust remover, a bin C is arranged below one end of the sixth belt conveyor and one end of the third belt conveyor, a material distribution bin is arranged below the bin C, a belt conveyor is arranged below the material distribution bin, the left end of the belt conveyor is arranged below the material distribution bin, a rolling screen is arranged at the right end of the belt conveyor, the pneumatic dust remover is characterized in that a vertical mill is arranged below the rolling screen, a double-layer pneumatic air locking valve is arranged between the rolling screen and the vertical mill, an air box pulse bag dust remover is arranged on the right side of the vertical mill, and a connecting end on the air box pulse bag dust remover is connected with an air conveying system.

Preferably, the upper left side of batcher is equipped with feed bin A, and the right side below of batcher is equipped with down the hopper, feed bin A, down the hopper all communicate with the batcher, the right side below of batcher is equipped with jaw crusher, and jaw crusher and 2 cooperation installations of batcher.

Preferably, a belt metering scale A is arranged below the bin B, and the belt metering scale A is installed in a matched mode with the left end of the fifth belt conveyor.

Preferably, the vertical direction in left side of the roller mill system sand machine is equipped with circulation bucket and carries machine A, be equipped with pipeline formula de-ironing separator between circulation bucket and the second shale shaker A's the top, the left side of founding the mill is equipped with circulation bucket and carries machine B, and circulation bucket is carried the bottom of machine B and is installed with the discharge gate cooperation of founding the mill, circulation bucket is carried machine B's upper end right side and is equipped with the roll screen, and the below of roll screen is equipped with double-deck pneumatic airlock valve.

Preferably, a belt scale B is arranged right below the material distribution bin.

Preferably, the upper right side of the vertical mill is provided with a feeding pipeline, one end of the feeding pipeline is connected with the vertical mill in a welding mode, the other end of the feeding pipeline is communicated with one side of the gas tank pulse bag dust remover, an expansion joint is arranged on the feeding pipeline, the right side of the vertical mill is provided with a water spraying head in the mill, a hot blast stove is arranged below the water spraying head in the mill and close to the bottom, a groove-shaped conveying belt is arranged on the outer side of the lower left side of the vertical mill and close to the bottom, and an oil-cooling self-discharging electromagnetic iron.

Preferably, the right side of the gas tank pulse bag dust remover is provided with a fan, the fan is communicated with the side wall of the right side of the gas tank pulse bag dust remover through a pipeline, the other end of the fan is provided with an exhaust pipe, and the bottom of the gas tank pulse bag dust remover is provided with an air conveying chute.

Preferably, the air conveying system is provided with a fixed single-screw air compressor, one end of the fixed single-screw air compressor is provided with an air storage tank, the other connecting end of the air storage tank is provided with a nine-stage filter, one side of the nine-stage filter is provided with a water-cooled dryer, and one end of the water-cooled dryer is provided with a seven-stage oil mist filter.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model relates to a rationally, the process is perfect, adopts the grinding roller to carry out the powder process again after making the sand, reduces the iron content in the raw materials, reduces the wearing and tearing of the vulnerable part of powder process equipment, prolongs the life of vulnerable part, makes the operating efficiency of equipment improve, makes the energy consumption greatly reduced of powder process equipment, and the activity of the steel slag powder of preparation is high.

Drawings

FIG. 1 is a schematic structural view of a pulverized steel slag pulverizing system of the present invention;

fig. 2 is a schematic structural view of the air delivery system of the present invention.

In the figure: 1. a stock bin A; 2. a feeder; 3. a jaw crusher; 4. a first belt conveyor; 5. a first de-ironing separator; 6. a first vibrating screen; 7. a second belt conveyor A; 8. a cone crusher; 9. a second belt conveyor B; 10. a second iron remover; 11. a third belt conveyor; 12. a fourth belt conveyor; 13. a third iron remover; 14. a stock bin B; 15. a belt scale A; 16. a fifth belt conveyor; 17. a fourth iron remover; 18. grinding and sand making machine of the roller; 19. a circulating bucket elevator A; 20. a pipe-type iron remover; 21. a second vibrating screen; 22. a dust remover; 23. a sixth belt conveyor; 24. a storage bin C; 25. a material distributing bin; 26. a belt scale B; 27. a belt conveyor; 28. a strong iron remover; 29. a hot blast stove; 30. a circulating bucket elevator B; 31. rolling the screen; 32. a double-layer pneumatic air locking valve; 33. vertically grinding; 34. an expansion joint; 35. a gas tank pulse bag dust remover; 36. a fan; 37. an exhaust duct; 38. an air delivery chute; 39. an air delivery system; 40. a steel slag powder preparation system; 41. a fixed single screw air compressor; 42. a gas storage tank; 43. a nine-stage filter; 44. a water-cooled dryer; 45. seven-stage oil mist filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a process systems of roller mill system sand machine, roller mill joint production steel slag powder, includes steel slag powder preparation system 40, is equipped with batcher 2 on the steel slag powder preparation system 40, and the upper left side of batcher 2 is equipped with feed bin A1, and the right side below of batcher 2 is equipped with down the hopper, feed bin A1, and down the hopper all communicates with batcher 2, and the right side below of batcher 2 is equipped with jaw crusher 3, and jaw crusher 3 and batcher 2 cooperate the installation.

A first belt conveyor 4 is arranged below the feeding machine 2, a first iron remover 5 is arranged on one side of the first belt conveyor 4, a second belt conveyor B9 is arranged at one end of the first belt conveyor 4, the first belt conveyor 4 is arranged below the joint of the second belt conveyor B9, a first vibrating screen 6 is arranged below the joint of the first belt conveyor B9, a second iron remover 10 is arranged on one side of the second belt conveyor B9, a second belt conveyor A7 is arranged on one side of the second belt conveyor B9, a third iron remover 13 is arranged on one side of the second belt conveyor A7, the second belt conveyor A7 and the second belt conveyor B9 are arranged in a crossed manner, a cone crusher 8 is arranged at one end of the second belt conveyor A7 and one end of the second belt conveyor B9, one end of the second belt conveyor A7 is arranged at the top end of the cone crusher 8, the other end of the second belt conveyor A7 is arranged in a matched manner with the first vibrating screen 6, one end of the second belt conveyor B9 is arranged at the bottom end of the cone crusher 8, and a third vibrating screen 11 is arranged, the fourth belt conveyor 12 is characterized in that storage bins B14 are symmetrically arranged below the left end of the fourth belt conveyor 12, a belt metering scale A15 is arranged below the storage bin B14, and the belt metering scale A15 is matched with the left end of the fifth belt conveyor 16.

A fifth belt conveyor 16 is arranged on one side below the bin B14, a fourth iron remover 17 is arranged on one side of the fifth belt conveyor 16, a roller grinding sand making machine 18 is arranged at the right end of the fifth belt conveyor 16, a circulating bucket elevator A19 is arranged in the left vertical direction of the roller grinding sand making machine 18, and a pipeline type iron remover 20 is arranged between the top end of the circulating bucket elevator A19 and the second vibrating screen 21.

A second vibrating screen 21, a dust remover 22 and a second vibrating screen 21 are arranged above one side of the roller mill sand making machine 18, the dust remover 22 is installed in a matched mode with the roller mill sand making machine 18, a sixth belt conveyor 23 is arranged below the dust remover 22, a storage bin C is arranged below one end of the sixth belt conveyor 23 and one end of a third belt conveyor 11, a material distributing bin 25 is arranged below the storage bin C, and a belt metering scale B26 is arranged under the material distributing bin 25.

A belt conveyor 27 is arranged below the material distribution bin 25, the left end of the belt conveyor 27 is arranged below the material distribution bin 25, a rolling screen 31 is arranged at the right end of the belt conveyor 27, a vertical mill 33 is arranged below the rolling screen 31, a double-layer pneumatic air lock valve 32 is arranged between the rolling screen 31 and the vertical mill 33, an air box pulse bag dust remover 35 is arranged on the right side of the vertical mill 33, a feeding pipeline is arranged on the right upper side of the vertical mill 33, one end of the feeding pipeline is welded with the vertical mill 33, the other end of the feeding pipeline is communicated with one side of the air box pulse bag dust remover 35, an expansion joint 34 is arranged on the feeding pipeline, an in-mill water spray head is arranged on the right side of the vertical mill 33, a hot blast stove 29 is arranged below the in-mill water spray head, a groove-shaped conveying belt is arranged on the outer side of the left lower side of the vertical mill 33 and close to the bottom, an oil-cooled, the bottom end of the circulating bucket elevator B30 is matched with a discharge hole of the vertical mill 33, a rolling screen 31 is arranged on the right side of the upper end of the circulating bucket elevator B30, a double-layer pneumatic air-lock valve 32 is arranged below the rolling screen 31, a connecting end on the air box pulse bag dust remover 35 is connected with an air conveying system 39, air is continuously supplied to the inside of the air box pulse bag dust remover 35 through the air conveying system 39, dust in the steel sand powder and the steel sand powder are dispersed, and the dust is conveniently sucked out by a rear fan.

The right side of gas tank pulse bag dust remover 35 is equipped with fan 36, and fan 36 passes through pipeline and 35 right side lateral walls of gas tank pulse bag dust remover intercommunication, and the other end of fan 36 is equipped with exhaust pipe 37, and the bottom of gas tank pulse bag dust remover 35 is equipped with air conveying chute 38, and air conveying chute 38 effectively reduces the wearing and tearing of equipment in the transportation process, can also avoid condensing of slag powder simultaneously.

A fixed single-screw air compressor 41 is arranged on the air conveying system 39, an air storage tank 42 is arranged at one end of the fixed single-screw air compressor 41, a nine-stage filter 43 is arranged at the other connecting end of the air storage tank 42, a water-cooled dryer 44 is arranged at one side of the nine-stage filter 43, and a seven-stage oil mist filter 45 is arranged at one end of the water-cooled dryer 44.

The powder preparation method of the process system for producing the steel slag powder by combining the roller grinding sand making machine and the roller grinding comprises the following steps:

the method is characterized in that a forklift is adopted to send raw materials for preparing steel grit into the bin A1, a feeder sends the raw materials into the jaw crusher 3 for crushing, the crushed steel slag material is sent to the first belt conveyor 4, and the first iron remover 5 on one side of the first belt conveyor 4 removes iron from the steel slag material.

The steel slag material that first belt feeder 4 will be preliminary broken is sent into first shale shaker 6, first shale shaker 6 divides the material into tertiary screening, send respectively to second belt feeder A7 after the screening, third belt feeder 11, on the fourth belt feeder 12, the second de-ironing separator 10 of second belt feeder A7 one side carries out the deironing, second belt feeder A7 sends into the material and continues to break in the cone crusher 8, the material that third belt feeder 11 will accord with the specification is carried and is stacked together, the material that is up to standard of fourth belt feeder 12 is sent to feed bin B14.

The bin B14 is used for weighing the substandard materials by adopting the belt weigher 15, the weighed materials are sent to the fifth belt conveyor 16, and the fourth iron remover 17 at one side of the fifth belt conveyor 16 is used for removing iron.

The steel slag with iron removed by the fourth iron remover 17 is sent into a roller mill 18 for grinding and sand making, the steel sand ground by the roller mill 18 is sent into a pipeline type iron remover 20 for iron removal and then sent into a second vibrating screen 21 for screening, the steel sand between 5mm and 15mm after screening is sent into the roller mill 18 again for grinding and processing, the steel sand with the specification smaller than 5mm is sent into a dust remover 22 for dust removal, and the steel sand after dust removal is sent into a sixth belt conveyor 23.

The third belt conveyor 11 and the sixth belt conveyor 23 send good steel grit into the bin C24, the bin C24 falls onto the conveyer belt, the conveyer belt sends the steel grit into the material distributing bin 25, the material distributing bin 25 discharges the steel grit into the belt weigher B26, and the belt weigher B26 sends the steel grit into the vertical mill 33 after weighing the steel grit.

The vertical mill 33 grinds the steel grit, and then the steel grit is sent to the rolling screen 31 by the circulating bucket elevator B30 to be screened, and the unqualified steel grit material screened by the rolling screen 31 returns to the interior of the vertical mill 33 to be ground again.

The steel slag powder qualified by grinding of the vertical mill 33 is sent into the air box pulse bag dust remover 35, the air conveying system 39 continuously inputs air into the air box pulse bag dust remover 35 to separate dust while the air box pulse bag dust remover 35 removes dust, the air box pulse bag dust remover 35 removes dust in the steel slag powder, the air box pulse bag dust remover 35 separates the dust, the dust is discharged from the fan 36, and finally the qualified steel slag powder is discharged to the air conveying chute 38 from the bottom of the air box pulse bag dust remover 35.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a process systems of roller mill system sand machine, roller mill joint production steel slag powder, includes steel slag powder preparation system (40), its characterized in that: a feeding machine (2) is arranged on the steel slag powder preparation system (40), a first belt conveyor (4) is arranged below the feeding machine (2), a first iron remover (5) is arranged on one side of the first belt conveyor (4), a second belt conveyor B (9) is arranged at one end of the first belt conveyor (4), a first vibrating screen (6) is arranged below the joint of the second belt conveyor B (9) of the first belt conveyor (4), a second iron remover (10) is arranged on one side of the second belt conveyor B (9), a second belt conveyor A (7) is arranged on one side of the second belt conveyor B (9), a third iron remover (13) is arranged on one side of the second belt conveyor A (7), the second belt conveyor A (7) and the second belt conveyor B (9) are arranged in a crossed manner, a cone crusher (8) is arranged at one end of the second belt conveyor A (7) and the second belt conveyor B (9), the one end setting of second belt feeder A (7) is on the top of cone crusher (8), and the other end and first shale shaker (6) cooperation installation of second belt feeder A (7), the one end setting of second belt feeder B (9) are in the bottom of cone crusher (8), the below of first shale shaker (6) is equipped with third belt feeder (11), fourth belt feeder (12), the left end below symmetry of fourth belt feeder (12) is equipped with feed bin B (14), and below one side of feed bin B (14) is equipped with fifth belt feeder (16), one side of fifth belt feeder (16) is equipped with fourth de-ironing separator (17), the right-hand member of fifth belt feeder (16) is equipped with roll-mill system sand machine (18), one side top of roll system sand machine (18) is equipped with second shale shaker (21), dust remover (22), second shale shaker (21), dust remover (22) and roll system sand machine (18) cooperation installation, the below of dust remover (22) is equipped with sixth belt feeder (23), sixth belt feeder (23) is equipped with feed bin C with the one end below of third belt feeder (11), and feed bin C's below is equipped with branch feed bin (25), the below of branch feed bin (25) is equipped with band conveyer (27), and the left end setting of band conveyer (27) is in the below of branch feed bin (25), and the right-hand member of branch band conveyer (27) is equipped with roll screen (31), the below of roll screen (31) is equipped with upright mill (33), is equipped with double-deck pneumatic airlock valve (32) between roll screen (31) and upright mill (33), the right side of upright mill (33) is equipped with gas tank pulse bag dust remover (35), a link end is connected with air conveying system (39) on gas tank pulse bag dust remover (35).

2. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: the upper left side of batcher (2) is equipped with feed bin A (1), and the right side below of batcher (2) is equipped with down the hopper, feed bin A (1), down the hopper all communicate with batcher (2), the right side below of batcher (2) is equipped with jaw crusher (3), jaw crusher (3) and batcher (2) cooperation installation.

3. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: a belt metering scale A (15) is arranged below the bin B (14), and the belt metering scale A (15) is matched with the left end of the fifth belt conveyor (16) to be installed.

4. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: a circulating bucket elevator A (19) is arranged in the vertical direction of the left side of the roller grinding sand making machine (18), and a pipeline type iron remover (20) is arranged between the top end of the circulating bucket elevator A (19) and a second vibrating screen (21).

5. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: a belt metering scale B (26) is arranged under the material distribution bin (25).

6. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: the utility model discloses a pneumatic air lock valve, including mill (33), feed pipe, expansion joint (34), mill (33), stand and grind (33) welded connection immediately, the one side intercommunication of the other end of feed pipe and gas tank pulse bag dust remover (35) is equipped with expansion joint (34) on the feed pipe, the right side of grinding immediately (33) is equipped with in the mill sprinkler bead, and the below of sprinkler bead is close to the bottom and is equipped with hot-blast furnace (29) in the mill, the outside is close to the bottom and is equipped with the cell type conveyer belt in grinding (33) left side below immediately, is equipped with oil cooling self-discharging formula electromagnetism de-ironing separator on the cell type conveyer belt, the left side of grinding immediately (33) is equipped with circulation bucket elevator B (30), and the bottom of circulation bucket elevator B (30) and the discharge gate cooperation installation that grinds immediately (33), the upper end right side of circulation bucket elevator B (30) is equipped with roll screen (31), and the.

7. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: the right side of gas tank pulse bag dust remover (35) is equipped with fan (36), and fan (36) are through pipeline and gas tank pulse bag dust remover (35) right side lateral wall intercommunication, and the other end of fan (36) is equipped with exhaust pipe (37), the bottom of gas tank pulse bag dust remover (35) is equipped with air conveying chute (38).

8. The process system for producing the steel slag powder by combining the roller mill with the sand mill according to claim 1, is characterized in that: be equipped with fixed single screw air compressor machine (41) on air conveying system (39), the one end of fixed single screw air compressor machine (41) is equipped with gas holder (42), another link of gas holder (42) is equipped with nine grades of filters (43), and one side of nine grades of filters (43) is equipped with water-cooled desiccator (44), the one end of water-cooled desiccator (44) is equipped with seven grades of oil mist filters (45).