CN210845763U

CN210845763U - Converter steelmaking dust removal discarded object recycle device

Info

Publication number: CN210845763U
Application number: CN201921868835.3U
Authority: CN
Inventors: 张继进
Original assignee: Shandong Iron and Steel Co Ltd
Current assignee: Shandong Iron and Steel Co Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-26
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to the technical field of converter steelmaking, in particular to a converter steelmaking dust removal waste recycling device, which comprises a closed recycling box body, wherein the recycling box body is communicated with an external water source through a high-pressure spray head fixedly connected on the recycling box body by bolts, and the side surface of the recycling box body is respectively provided with a feed inlet and a discharge outlet from top to bottom; an annular magnet is fixedly connected in the recovery box body. The device can be used for clearing away the particles of the converter steelmaking dedusting waste in the converter steelmaking dedusting waste, preventing the particles from being directly discharged into the atmosphere to cause atmospheric pollution, recycling the iron powder particles in the converter steelmaking dedusting waste, reducing the waste of resources, recycling the dedusting water and saving water resources.

Description

Converter steelmaking dust removal discarded object recycle device

Technical Field

The utility model belongs to the technical field of converter steelmaking, specifically a converter steelmaking dust removal discarded object recycle device.

Background

The converter steelmaking uses molten iron, scrap steel and ferroalloy as main raw materials, does not need external energy, and completes the steelmaking process in the converter by means of heat generated by physical heat of molten iron and chemical reaction among molten iron components. The converter is divided into acid and alkaline according to refractory materials, and top blowing, bottom blowing and side blowing are carried out according to the positions of gas blown into the converter; according to the gas types, the converter comprises an air separation converter and an oxygen converter. The basic oxygen top-blown converter and the top-bottom combined blown converter are the most common steelmaking equipment used at present due to high production speed, high yield, high single-furnace yield, low cost and low investment. The converter is mainly used for producing carbon steel, alloy steel and smelting copper and nickel. The raw materials for converter steelmaking are divided into metal materials, non-metal materials and gas. The metal material comprises molten iron, scrap steel and ferroalloy, the non-metal material comprises slag making material, flux and coolant, and the gas comprises oxygen, nitrogen, argon, carbon dioxide and the like. The non-metallic material is added in order to remove impurities such as phosphorus, sulfur and the like in the converter steelmaking process and control the process temperature. Mainly comprises slagging materials (lime and dolomite), fluxes (fluorite and iron scale), cooling agents (iron ore, limestone and scrap steel), carburant and fuels (coke, graphite seeds, coal briquettes and heavy oil).

Iron and steel smelting dust, the nature of which is related to its source. The dust emitted to the air in the processes of crushing, screening and conveying materials is similar to the original materials in physical properties such as chemical components, true density and the like, the particles are thick, and the dust removal waste particles in converter steelmaking can reach hundreds of microns. The furnace and kiln smoke dust is solid particles formed by condensation or oxidation of sublimate or steam generated in a physical and chemical process in the metal smelting or heating process in the air, such as oxygen converter smoke dust, oxygen blowing open-hearth smoke dust, electric furnace smoke dust and the like, mainly comprises metal oxides, has fine particles, is mostly discharged along with high-temperature smoke gas through a chimney, can cause atmospheric pollution due to the fact that the particles in converter steelmaking dust removal waste are large, and can cause the waste phenomenon of resources due to the fact that the converter steelmaking dust removal waste contains a large amount of iron powder particles which are directly discharged.

SUMMERY OF THE UTILITY MODEL

The utility model provides a converter steelmaking dust removal discarded object recycle device for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

a device for recycling dust-removing wastes generated in converter steelmaking comprises a closed recycling box body, wherein the recycling box body is fixedly connected with a high-pressure spray head communicated with an external water source, and the side surface of the recycling box body is respectively provided with a feed inlet and a discharge outlet from top to bottom; an annular magnet is fixedly connected in the recovery box body.

When the device is used, the converter steelmaking dust removal waste is conveyed into the recovery box body through the feeding hole, external water is sprayed into the recovery box body through the high-pressure spray head and is mixed with the water in the recovery box body, wherein converter steelmaking dust removal waste particles in the converter steelmaking dust removal waste fall into the recovery box body through water adhesion, and iron powder particles in the converter steelmaking dust removal waste are adsorbed by the annular magnet, wherein the converter steelmaking dust removal waste particles adhered by water are discharged through the discharging hole, so that not only can the converter steelmaking dust removal waste particles in the converter steelmaking dust removal waste be removed, but also the converter steelmaking dust removal waste particles are prevented from being directly discharged into the atmosphere to cause atmospheric pollution, and meanwhile, the iron powder particles in the converter steelmaking dust removal waste can be recovered, and the waste of resources is reduced.

Preferably, the recovery box body comprises a sealing end cover fixedly connected to the upper portion of the recovery box body through a bolt, the top surface of the sealing end cover is fixedly connected with a stirring motor, a rotating shaft of the stirring motor downwards penetrates through the sealing end cover, the lower end of the rotating shaft of the stirring motor is fixedly connected with a stirring shaft rod, the outer wall of the stirring shaft rod is uniformly sleeved with a stirring rod, and the outer wall of the stirring rod at the bottom is uniformly sleeved with an annular magnet. The sealing end cover is fixedly connected to the recovery box body through a bolt, so that the sealing end cover is convenient to disassemble, and the device in the recovery box body is convenient to maintain and clean; wherein, agitator motor's rotation drives the rotation of agitator shaft pole, the rotation of agitator shaft pole drives the puddler and rotates along the agitator shaft pole, the rotation of puddler can further be as an organic whole with converter steelmaking dust removal discarded object and high pressure nozzle spun dust fall water even mixing, thereby guarantee that converter steelmaking dust removal discarded object granule in the steelmaking dust removal discarded object can fully mix with water and fall down, thereby reach better dust removal effect, and the iron powder granule in the mixture is stirred by annular magnet and is adsorbed, thereby can adsorb the iron powder granule in the converter steelmaking dust removal discarded object and retrieve.

Preferably, a mixing baffle provided with a discharge groove and a filter screen II are respectively and fixedly connected in the recovery box body from top to bottom in a transverse direction, the mixing baffle is sleeved on the outer wall of the stirring shaft rod and is positioned above the annular magnet, a filter screen I is fixedly connected in the discharge groove in the transverse direction, the lower end of the filter screen II is positioned below the discharge opening, the filter screen I is arranged above the high end of the filter screen II, the filter screen II is a filter screen II, the aperture of the filter screen I is larger than that of converter steelmaking dedusting waste particles, the aperture of the filter screen II is smaller than that of the converter steelmaking dedusting waste particles, the converter steelmaking dedusting waste particles flow onto the filter screen II through the filter screen I, the filter screen II can filter converter steelmaking dedusting waste particles in the dedusting water, so that the water in the dedusting water continues to flow downwards through the filter screen II, and the converter steelmaking dedusting waste particles in the dedusting water, the guide whereabouts of the filter screen one on mixing the baffle at the high-end of filter screen two and flow to discharge gate department and flow through the bin outlet voluntarily under the action of gravity, because filter screen one is located two high-end departments of filter screen, the bin outlet is located two low end departments of filter screen, consequently, can the effectual moisture in the two mixtures of filter screen.

As preferred, the bottom of mixing the baffle is fixed with the connecting seat through the bolt about its axle center central symmetry, and connecting insertion hole has been seted up to the lateral wall of connecting seat, retrieves box inner wall fixedly connected with several and connects the inserted bar, connects the inserted bar and all inserts in the corresponding connecting insertion hole, the axle center department of mixing the baffle sets up with the spacing shaft hole of stirring axostylus axostyle matched with, and the stirring axostylus axostyle is located spacing shaft hole, and the stirring axostylus axostyle is located and can guarantee that the rotation of stirring axostylus axostyle can not drive the rotation of mixing the baffle, and the connecting insertion hole that the connecting insertion bar on retrieving the box inner wall inserted on the connecting seat can make mixing the baffle can not only fix in retrieving the box.

Preferably, a feed hopper is fixedly connected to a feed inlet of the recovery box body, so that converter steelmaking dust removal waste can conveniently enter the recovery box body.

Preferably, the high-pressure nozzles are twelve to sixteen groups, and the multiple groups of high-pressure nozzles are symmetrically arranged around the center of the stirring shaft rod, so that the dustfall water sprayed out by the high-pressure nozzles is uniform, and the aim of reducing dust is further fulfilled.

Preferably, a water storage tank is arranged on one side of the recovery tank body, the water storage tank is communicated with the interior of the recovery tank body through a return pipe, the water storage tank is communicated with a high-pressure water pump, the output end of the high-pressure water pump is communicated with a water delivery pipe, and the water delivery pipe is communicated with the high-pressure spray head through a communicating pipe. The filtered waste water in the recovery box body flows into the water outlet box through the return pipe under the action of the high-pressure water pump and is sprayed into the recovery box body through the water storage box, the high-pressure water pump, the water delivery pipe, the communicating pipe and the high-pressure nozzle in sequence, so that the cyclic utilization of water resources is realized.

Preferably, one end of the return pipe is provided with a filter tank, and the filter tank is arranged in the inner cavity of the recovery box body. The filtering tank can filter water flowing down through the filter screen, so that small particles in water are prevented from flowing into the high-pressure nozzle to block the high-pressure nozzle, and the high-pressure nozzle is guaranteed to be used for a long time.

As preferred, the top fixedly connected with communicating pipe of end cover, communicating pipe is the loop configuration, and the bottom of communicating pipe evenly is provided with several and high-pressure nozzle connecting pipe matched with delivery port to realize that a communicating pipe inserts a plurality of high-pressure nozzles, and then reduce the quantity of communicating pipe, reduce cost.

Preferably, a sealing baffle plate which completely covers the discharge opening is fixed on the side wall of the recovery box body through a bolt, so that the dust-reducing water can be effectively prevented from flowing out of the discharge opening.

The utility model has the advantages that: when the device is used, the converter steelmaking dust removal waste is conveyed into a recovery box body through a feed inlet, and a high-pressure water pump and a stirring motor are started, the high-pressure water pump can spray water in a water storage tank into the recovery box body through the high-pressure water pump, a water conveying pipe, a communicating pipe and high-pressure nozzles, wherein the high-pressure nozzles are twelve to sixteen groups, and a plurality of groups of high-pressure nozzles are symmetrically arranged around the center of a stirring shaft lever, the communicating pipe is of an annular structure, the bottom of the communicating pipe is uniformly provided with a plurality of water outlets matched with a high-pressure nozzle connecting pipe, and then dust fall water sprayed out through the high-pressure nozzles is uniform and sprayed into the recovery box body, wherein the dust fall water sprayed into the recovery box body by the high-pressure nozzles is mixed with the converter steelmaking dust removal waste in the recovery box body, the rotation of the stirring rod can uniformly mix the converter steelmaking dedusting waste with the dustfall water sprayed by the high-pressure spray head into a whole, and the annular magnet rotating along with the stirring rod adsorbs the iron powder particles in the mixed dustfall water, so that the iron powder particles are recycled again, and the purpose of saving resources is achieved.

Because the aperture of the first filter screen is larger than that of the dust removal waste particles for converter steelmaking, and the aperture of the second filter screen is smaller than the diameter of the dust removal waste particles for converter steelmaking, a mixture mixed into a whole flows to the high end of the second filter screen under the action of the first filter screen on the mixing baffle, wherein the dust removal waste particles for converter steelmaking flow to the discharge opening under the action of gravity, so that the dust removal waste particles for converter steelmaking are removed, and the direct discharge of the dust removal waste particles into the atmosphere is prevented from causing atmospheric pollution.

The residual dedusting water flows to the bottom of the recovery box body through the filter screen and flows into the water storage box through the return pipe after being filtered by the filter tank in the water storage box under the action of the high-pressure water pump, thereby realizing the recycling of water resources.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic diagram of a mixing baffle configuration.

Shown in the figure:

1. the recycling box body, 2, end cover, 3, high pressure nozzle, 4, communicating pipe, 5, stirring shaft lever, 6, stirring motor, 7, Z type backup pad, 8, stirring rod, 9, mixing baffle, 91, discharge tank, 92, filter screen I, 93, connecting seat, 94, spacing shaft hole, 10, filter screen II, 11, annular magnet, 12, bin outlet, 13, sealing baffle, 14, back flow, 15, filter tank, 16, storage water tank, 17, high pressure water pump, 18, raceway, 19, feeder hopper.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A recycling device for dust removal waste in converter steelmaking, which is shown in figures 1-2. Comprises a recovery box body 1, a sealing end cover 2 is fixed on the top of the recovery box body 1 through bolts, high-pressure spray heads 3 are evenly arranged on the bottom of the sealing end cover 2, a communicating pipe 4 is arranged above the sealing end cover 2, a bottom water outlet of the communicating pipe 4 is communicated with the top of the high-pressure spray heads 3 through a pipeline, a stirring shaft rod 5 is vertically arranged in the middle of an inner cavity of the recovery box body 1, the top end of the stirring shaft rod 5 penetrates through the top of the sealing end cover 2, a stirring motor 6 is fixed on the top end of the stirring shaft rod 5 through a connecting bearing, a Z-shaped supporting plate 7 is arranged on the top of the stirring motor 6 through bolts, the bottom end of the Z-shaped supporting plate 7 is fixedly connected with the top of the sealing end cover 2 through bolts, stirring rods 8 are evenly sleeved on the outer wall of the stirring shaft rod 5, and the mixing baffle 9 is arranged above the bottom stirring rod 8, the inner cavity of the recovery box body 1 is welded with a filter screen II 10 in an inclined mode, the filter screen II 10 is arranged below the bottom stirring rod 8, the outer wall of the stirring rod of the bottom stirring rod 8 is uniformly sleeved with an annular magnet 11, the side wall of the recovery box body 1 is provided with a discharge port 12, the discharge port 12 is arranged above the lower end of the filter screen II 10, the side wall of the recovery box body 1 is fixed with a sealing baffle 13 through bolts, the discharge port 12 can be completely covered by the sealing baffle 13, a rubber sealing gasket is arranged between the sealing baffle 13 and the discharge port 12 to prevent dust-reducing water from flowing out of the discharge port 12, a return pipe 14 is transversely arranged at the bottom of the side wall of the recovery box body 1, a filter tank 15 is arranged at the right end of the return pipe 14, the filter tank 15 is arranged in the inner cavity of the recovery box body 1, a water storage tank, the output end of the high-pressure water pump 17 is provided with a water pipe 18, the top end of the water pipe 18 is hermetically connected with a water inlet at the top of the communicating pipe 4, a feed hopper 19 is arranged on a feed inlet of the recovery box body 1, and the feed hopper 19 is arranged above the mixing baffle 9.

Wherein, the high pressure nozzle 3 is twelve to sixteen groups, and a plurality of groups of high pressure nozzles 3 are arranged symmetrically with respect to the center of the stirring shaft lever 5, so that the dustfall water sprayed by the high pressure nozzle 3 is relatively uniform, the communicating pipe 4 is of an annular structure, the bottom of the communicating pipe 4 is uniformly provided with a water outlet matched with a connecting pipe of the high pressure nozzle 3, and the top is provided with a water inlet matched with the water pipe 18, thereby facilitating the connection between the communicating pipe 4 and the high pressure nozzle 3 as well as the water pipe 18, the connecting parts of the stirring shaft lever 5 and the recovery box body 1, the sealing end cover 2, the mixing baffle 9 and the filter screen II 10 are all provided with a sealing wear-resistant bearing, reducing the rotation wear of the stirring shaft lever 5 and ensuring the sealing performance, the bottom of the mixing baffle 9 is provided with a discharge groove 91, and the discharge groove 91 is arranged, the bottom of mixing baffle 9 is fixed with connecting seat 93 about its axle center central symmetry through the bolt, and connecting jack has been seted up to the lateral wall of connecting seat 93, wherein, the connection inserted bar that retrieves on the box 1 inserts respectively in the connection inserted hole that corresponds, make mixing baffle 9 can not only fix in retrieving box 1, can take off mixing baffle 9 from retrieving box 1 simultaneously, and then the convenience is to the washing of two 10 filter screens, guarantee that two 10 filter screens can use for a long time, because annular magnet 11 adsorption effect is limited, therefore, can lead to annular magnet 11 to adsorb thoroughly when too much iron powder particulate matter can adsorb simultaneously, and filter screen 92 then can effectively prevent once only to get into too much iron powder particulate matter, guarantee annular magnet 11 and adsorb the iron powder particulate matter. The axle center of the mixing baffle 9 is provided with a limit axle hole 94 matched with the stirring shaft lever 5, so that the rotation of the stirring shaft lever 5 can be effectively prevented from driving the mixing baffle 9 to rotate. The aperture of the first filter screen 92 is larger than the diameter of the converter steelmaking dust removal waste particles, and the aperture of the second filter screen 10 is smaller than the diameter of the converter steelmaking dust removal waste particles, so that the mixture of the converter steelmaking dust removal waste and water can enter the top of the second filter screen 10 through the first filter screen 92 and cannot enter the bottom of the second filter screen 10, and the dust removal water is conveniently separated out.

When the device is used, workers are electrically connected with an external power socket through a switch and a plug which are arranged on a high-pressure water pump 17 (such as a W-shaped single-stage vortex centrifugal pump) and a stirring motor 6 (such as an XWD-type cycloidal pin gear speed reducer), the dustfall water in a water storage tank 16 is pumped out through the high-pressure water pump 17 and is input into an inner cavity of a communicating pipe 4 through a water conveying pipe 18, then is uniformly sprayed into an inner cavity of a recovery box body 1 through a high-pressure spray nozzle 3, meanwhile, converter steelmaking dust removal waste is added into the inner cavity of the recovery box body 1 through a feed hopper 19, the stirring shaft lever 5 is driven to rotate through the rotation of the stirring motor 6, the stirring shaft lever 8 is driven to rotate through the rotation of the stirring shaft lever 5, the converter steelmaking dust removal waste and the dustfall water sprayed by the high-pressure spray nozzle 3 are uniformly mixed into a whole through the rotation of the stirring lever 8, and the dustfall, stirring and adsorbing the entering mixture by an annular magnet 11, adsorbing and recovering iron powder particles in the converter steelmaking dedusting waste, the mixed converter steelmaking dust removal waste also avoids the phenomenon of dust pollution caused by stirring in the recovery process, meanwhile, the mixed converter steelmaking dedusting waste can be separated from water through the filter screen II 10, and then the water is filtered by the filter tank 15 and then flows back to the inner cavity of the water storage tank 16 through the return pipe 14, so that the cyclic utilization of the dedusting water resource is realized, the waste phenomenon of the water resource is reduced, the adsorbed sludge without iron powder in the converter steelmaking dedusting waste is discharged by opening the sealing baffle 13, in the next step, the non-ferrous powder particulate matter resource is recovered, and the ring magnet 11 is detached from the stirring bar 8 and replaced with a new ring magnet 11, and the recovery operation can be performed again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a converter steelmaking dust removal discarded object recycle device which characterized in that: the device comprises a closed recovery box body (1), wherein the recovery box body (1) is fixedly connected with a high-pressure spray head (3) communicated with an external water source, and the side surface of the recovery box body (1) is respectively provided with a feed inlet and a discharge outlet (12) from top to bottom; an annular magnet (11) is fixedly connected in the recovery box body (1).

2. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: retrieve box (1) and include through bolt fixed connection at seal end cover (2) on retrieving box (1) upper portion, top surface fixed connection agitator motor (6) of seal end cover (2), agitator motor's (6) pivot is down and pass seal end cover (2), lower extreme fixed connection stirring shaft pole (5) of agitator motor (6) pivot, puddler (8) are evenly cup jointed to the outer wall of stirring shaft pole (5), annular magnet (11) have evenly been cup jointed to the outer wall of bottom puddler (8).

3. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: retrieve mixed baffle (9) and filter screen two that discharge tank (91) was seted up to horizontal fixedly connected with respectively from the top down in box (1), mix baffle (9) cup joint the outer wall in stirring axostylus axostyle (5) and be located annular magnet (11) top, horizontal fixedly connected with filter screen (92) in discharge tank (91), the low side of filter screen two is located the below of bin outlet (12) and filter screen (92) set up the top at two high ends of filter screen, the aperture of filter screen (92) is greater than the aperture of converter steelmaking dust removal waste particle, and the aperture of filter screen two (10) is less than the diameter of converter steelmaking dust removal waste particle.

4. The recycling device of the dedusting waste in the converter steelmaking according to the claim 3, is characterized in that: the bottom of mixing baffle (9) is fixed with connecting seat (93) through the bolt about its axle center central symmetry, and connecting jack has been seted up to the lateral wall of connecting seat (93), retrieves box (1) inner wall fixedly connected with several and connects the inserted bar, connects the inserted bar and all inserts in the connecting jack that corresponds, the axle center department of mixing baffle (9) sets up with stirring axostylus axostyle (5) matched with spacing shaft hole (94), and stirring axostylus axostyle (5) are located spacing shaft hole (94).

5. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: retrieve box (1) feed inlet department fixedly connected with feeder hopper (19).

6. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: the high-pressure nozzles (3) are twelve to sixteen groups, and the multiple groups of high-pressure nozzles (3) are arranged in central symmetry around the stirring shaft lever (5).

7. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: one side of the recovery box body (1) is provided with a water storage tank (16), the water storage tank (16) is communicated with the interior of the recovery box body (1) through a return pipe (14), the water storage tank (16) is communicated with a high-pressure water pump (17), the water outlet end of the high-pressure water pump (17) is communicated with a water delivery pipe (18), and the water delivery pipe (18) is communicated with the high-pressure spray nozzle (3) through a communicating pipe (4).

8. The recycling device of the dedusting waste in the converter steelmaking according to claim 7, is characterized in that: one end of the return pipe (14) is provided with a filter tank (15), and the filter tank (15) is arranged in the inner cavity of the recovery box body (1).

9. The recycling device of the dedusting waste in the converter steelmaking according to the claim 1 is characterized in that: and a sealing baffle (13) which completely covers the discharge port (12) is fixed on the side wall of the recovery box body (1) through bolts.