A steel ingot surface treatment device for steel production

Abstract

The present application relates to dry ice cleaning technical field, particularly to a kind of steel ingot surface treatment device for steel production, including base and distribution component;Base is horizontally arranged;Distribution component includes shaft and first distribution disc;Shaft is vertically arranged on base, and can rotate relative to base around its own axis, first distribution disc is installed on shaft, first distribution disc is uniformly provided with multiple separate first cavities, first baffle is arranged between adjacent two first cavities, first baffle is provided with first end and tail end, first distribution disc can transport dry ice particles in first cavity from first end to tail end of first baffle in the process of rotation, multiple first baffles are arranged in each first cavity, each first baffle can intercept dry ice particles moving from first end to tail end of first baffle, and the amount of dry ice particles intercepted by each first baffle is substantially consistent, ensure the uniformity of steel ingot surface treatment effect, also reduce the waste of dry ice particles.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dry ice cleaning, in particular to a steel ingot surface treatment device for steel production. BACKGROUND

[0002] The steel ingot refers to the steel block formed by pouring molten steel into a mold and cooling and solidifying, which is the raw material for manufacturing various steel products. Since the steel ingot is exposed to the air for a long time, the surface of the steel ingot will be oxidized and rusted after being exposed to the air and water. Therefore, the steel ingot needs to be manually derusted before it can be put into use. The derusting of the surface of the steel ingot is relatively simple, and various derusting devices have already existed.

[0003] The dry ice cleaning machine is one of the cleaning methods. The cleaning system of the dry ice cleaning machine sprays dry ice particles to the working surface to be cleaned through high-pressure air, and uses the physical reaction of temperature difference to make different substances separate at different shrinkage speeds. Dry ice cleaning can achieve rapid, efficient, safe and energy-saving cleaning effect.

[0004] The patent for invention with publication number CN111451217B discloses a dry ice cleaning machine, which comprises an upper support seat, a lower support seat and a dry ice tank installed on the upper support seat. A piston sealing assembly is slidably installed in the upper support seat. A feeding disc is rotatably installed between the piston sealing assembly and the lower support seat. The feeding disc is annularly and equidistantly provided with a plurality of material dropping cavities. A dry ice dropping port is arranged at the upper end of the upper support seat. A dry ice discharging port is arranged at the side end of the lower support seat away from the dry ice dropping port. During operation, the material dropping cavities rotate and convey the dry ice particles at the dry ice dropping port to the dry ice discharging port. The above-mentioned patent for invention can prevent high-pressure gas from entering the dry ice tank by rotating and feeding the feeding disc. However, it is difficult to control the amount of dry ice sprayed from the dry ice discharging port by high-pressure gas. For the surfaces of the steel ingot with different degrees of rust, the derusting may not be complete and the dry ice may be wasted. SUMMARY

[0005] Therefore, it is necessary to provide a steel ingot surface treatment device for steel production to solve the problems of incomplete derusting and dry ice waste of the dry ice cleaning machine in derusting the surface of the steel ingot.

[0006] The above-mentioned purpose is achieved by the following technical scheme:

[0007] A steel ingot surface treatment device for steel production comprises a feeding mechanism. The feeding mechanism comprises a base, an outer cylinder, a material conveying assembly and a material distributing assembly. The base is horizontally arranged, and a discharging cavity is formed in the base. The outer cylinder is installed on the base. The material conveying assembly is arranged above the outer cylinder and is used for conveying dry ice particles to the material distributing assembly.

[0008] The distribution assembly is arranged on the base and located in the outer cylinder, and comprises a rotating shaft, a first distribution disc and a sieve plate; the rotating shaft is vertically arranged on the base and can rotate relative to the base about its own axis; the first distribution disc is sleeved and arranged on the rotating shaft; the first distribution disc is uniformly provided with a plurality of separate first cavities; each first cavity penetrates the upper and lower end faces of the first distribution disc; a first partition plate is arranged between adjacent two first cavities; the first partition plate is provided with a leading end and a trailing end; the sieve plate is arranged on the outer cylinder and rotationally connected with the bottom of the first distribution disc; a discharging opening is arranged on the sieve plate and located directly above the discharging cavity; the first distribution disc can transport the dry ice particles in the first cavities from the leading end to the trailing end of the first partition plate during rotation; a plurality of first baffles are arranged in each first cavity; the plurality of first baffles are arrayed in a direction away from the rotating shaft; each first baffle can intercept the dry ice particles moving from the leading end to the trailing end of the first partition plate in the corresponding first cavity.

[0009] When the first distribution disc rotates, each first cavity can be communicated with the discharging cavity through the discharging opening; each first baffle in each first cavity can push the intercepted dry ice particles into the discharging cavity; the high-pressure gas is mixed with the dry ice particles in the distribution assembly and the discharging cavity and then sprayed out.

[0010] Preferably, the first distribution disc comprises a first inner ring plate and a first outer ring plate; the plurality of first cavities are uniformly arranged between the first inner ring plate and the first outer ring plate; one end of the first partition plate is arranged on the first inner ring plate; the other end of the first partition plate is arranged on the first outer ring plate; in the rotating direction of the first distribution disc, the leading end of the first partition plate is located in front of the trailing end; the plurality of first baffles in each first cavity are arrayed and arranged on the first partition plate and located on the front side of the first partition plate facing the rotating direction of the first distribution disc.

[0011] Preferably, the included angle between each first baffle in the first cavity and the side of the first partition plate facing the leading end of the first partition plate is an acute angle; the farther the first baffle is from the leading end of the first partition plate, the greater the vertical distance between the one end of the first baffle away from the first partition plate and the first partition plate.

[0012] Preferably, the sieve plate is sleeved on the rotating shaft; the sieve plate is provided with sieve holes for filtering small dry ice particles on the first distribution disc; the first baffles are provided with through holes for sieving small dry ice particles on the first baffles.

[0013] Preferably, the distribution assembly further comprises a second distribution disc; the second distribution disc is sleeved and arranged on the rotating shaft and has the same rotating direction as the first distribution disc; the second distribution disc is located below the sieve plate and on the base; the second distribution disc is rotationally connected with the base; the second distribution disc is used for dividing and transporting the dry ice particles sieved by the sieve plate into the discharging cavity.

[0014] Preferably, a groove is formed on the sieve plate, the groove is located below the sieve hole, a guide plate is installed in the groove, and the guide plate is used to guide the dry ice particles screened by the sieve hole to a preset position in the second distribution tray.

[0015] Preferably, a distance is provided between the material falling port and the sieve hole, and the material falling port extends along the radial direction of the rotating shaft on the sieve plate and forms an angle with the first partition plate.

[0016] Preferably, the material conveying assembly further comprises a top plate, a material cylinder and a dredging part; the top plate is installed on the top of the outer cylinder, the top plate is provided with a material inlet and an air inlet, the material inlet is located above the first end of the first partition plate, the air inlet is located above the first cavity, and the air inlet, the material falling port and the material outlet cavity are located on the same vertical axis; the material cylinder is arranged on the top plate and can communicate with the first cavity through the material inlet; the dredging part is arranged on the top plate and is used to dredge the dry ice particles at the position of the material inlet.

[0017] Preferably, the device further comprises a material returning mechanism, the material returning mechanism comprises a temporary storage cavity, a pump, a material returning pipe and a material outlet pipe; the temporary storage cavity is formed in the base, one end of the material returning pipe is installed at the bottom of the temporary storage cavity, the material returning pipe communicates with the temporary storage cavity, the pump is arranged on the top plate, the input end of the pump is connected with the end of the material returning pipe away from the temporary storage cavity, the output end of the pump is connected with one end of the material outlet pipe, and the other end of the material outlet pipe is connected with the output assembly; the first distribution tray and the second distribution tray are both provided with through holes for discharging excess dry ice particles into the temporary storage cavity.

[0018] Preferably, a piston disc and a partition disc are arranged between the first distribution tray and the top plate, the piston disc is arranged on the bottom of the top plate and slides in the vertical direction, the partition disc is sleeved on the rotating shaft and is fixedly connected with the piston disc; the partition disc and the piston disc are both provided with through holes for connecting the air inlet and the material falling port, and the partition disc is further provided with through holes for the dry ice particles to pass through.

[0019] The beneficial effects of the present application are as follows: the first distribution tray is provided with a plurality of first cavities, which can process the dry ice particles conveyed by the material conveying assembly in batches, the first partition plate is arranged, and the dry ice particles in the first cavities can move from the position of the first end of the first partition plate to the position of the tail end, in the process of moving, the first baffle intercepts the dry ice particles, and the intercepted dry ice particles are separated into multiple parts with substantially equal quality by the first baffle, the rotation of the first distribution tray can make the multiple first baffles successively approach the material outlet cavity on the base, so that the content of the dry ice particles in the material outlet cavity is substantially consistent, which ensures the uniformity of the surface treatment effect of the steel ingot and reduces the waste of dry ice particles. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 A structural schematic diagram of a steel ingot surface treatment device for steel production provided by the embodiment of the present application;

[0021] Figure 2A feeding mechanism structure schematic view of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided;

[0022] Figure 3 An explosion view of a material conveying assembly of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided;

[0023] Figure 4 An explosion view of a material distributing assembly of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided;

[0024] Figure 5 A top view of a material distributing assembly of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided;

[0025] Figure 6 A Figure 5 sectional view in A-A direction;

[0026] Figure 7 A Figure 5 sectional view in B-B direction;

[0027] Figure 8 A structure schematic view of a first material distributing disc and a second material distributing disc of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided;

[0028] Figure 9 A position relation schematic view of a first partition plate and a second partition plate of a steel ingot surface treatment device for steel production provided by the embodiment of the present application is provided.

[0029] Wherein: 101, a shell; 102, a piston disc; 103, a partition disc; 104, a dredging part; 201, a base; 202, a discharging cavity; 203, an outer cylinder; 204, a top plate; 205, a material cylinder; 206, a feeding port; 207, an air inlet; 301, a rotating shaft; 302, a first material distributing disc; 303, a first cavity; 304, a first partition plate; 305, a first baffle; 306, a first inner ring plate; 307, a first outer ring plate; 308, a sieve plate; 309, a sieve hole; 310, a groove; 311, a material guiding plate; 312, a second material distributing disc; 313, a second cavity; 314, a second partition plate; 315, a second baffle; 316, a second inner ring plate; 317, a second outer ring plate; 318, a material falling port; 401, a temporary storage cavity; 402, a pump; 403, a material returning pipe; 404, a discharging pipe; 501, an annular plate; 502, a first feeding pipe; 503, a connecting cylinder; 504, a second feeding pipe; 505, a speed reducer motor. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0031] The serial numbers assigned to components in this document, such as "first," "second," etc., are merely used to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] like Figures 1 to 9 As shown, this embodiment of the invention provides a steel ingot surface treatment device for steel production, which is suitable for treating rust on the surface of steel ingots with dry ice, and also suitable for polishing the surface of objects using solid particles. Specifically, this embodiment of the invention provides a steel ingot surface treatment device for steel production, including a feeding mechanism; the feeding mechanism includes a base 201, an outer cylinder 203, a conveying component, and a distributing component; the base 201 is horizontally arranged, and a discharge chamber 202 is opened on the base 201; the outer cylinder 203 is installed on the base 201; the conveying component is arranged above the outer cylinder 203 and is used to convey dry ice particles to the distributing component.

[0034] The distribution assembly is arranged on the base 201 and located in the outer cylinder 203, and the distribution assembly comprises a rotating shaft 301, a first distribution disc 302 and a sieve plate 308; the rotating shaft 301 is vertically arranged on the base 201 and can rotate relative to the base 201 around its own axis; the first distribution disc 302 is sleeved and arranged on the rotating shaft 301, and the first distribution disc 302 is fixedly connected with the rotating shaft 301; a plurality of separate first cavities 303 are uniformly arranged in the first distribution disc 302, each first cavity 303 penetrates the upper and lower end faces of the first distribution disc 302, and a first partition plate 304 is arranged between adjacent two first cavities 303; the first partition plate 304 is provided with a head end and a tail end; in the process of rotation of the first distribution disc 302, dry ice particles in the first cavities 303 can be transported from the head end to the tail end of the first partition plate 304; a plurality of first baffles 305 are arranged in each first cavity 303, and the plurality of first baffles 305 are arrayed in a direction away from the rotating shaft 301; each first baffle 305 can intercept dry ice particles moving from the head end to the tail end of the first partition plate 304 into the corresponding first cavity 303, and the amount of dry ice particles intercepted by each first baffle 305 is basically consistent.

[0035] When the first distribution disc 302 rotates, each first cavity 303 can be in communication with the discharging cavity 202 through the feeding opening 318, and each first baffle 305 in each first cavity 303 can push the intercepted dry ice particles into the discharging cavity 202; the high-pressure gas is mixed with the dry ice particles in the distribution assembly and the discharging cavity 202 and then sprayed out.

[0036] Specifically, the head end of the first partition plate 304 is located in a radial direction of the rotating shaft 301, and a spacing is arranged between the tail end of the first partition plate 304 and the radial direction; the material conveying assembly transports the dry ice particles to the head end of the first partition plate 304 in the first cavities 303; under the rotation of the first distribution disc 302, the dry ice particles can slide along the surface of the first partition plate 304; at the same time, each first baffle 305 can intercept a certain amount of dry ice particles, and the remaining dry ice particles will move to the next first baffle 305; the amount of dry ice particles intercepted in each first baffle 305 is basically consistent; through the rotation of the first distribution disc 302, the plurality of first baffles 305 can be sequentially close to the discharging cavity 202 on the base 201, so that the content of the dry ice particles in the discharging cavity 202 is basically consistent when sprayed out, thereby ensuring the uniformity of the surface treatment effect of the steel ingot and reducing the waste of dry ice particles.

[0037] Specifically, a speed reducer 505 is arranged at the bottom of the base 201, the output end of the speed reducer 505 is connected with the rotating shaft 301, and the speed reducer 505 is used for driving the rotating shaft 301 to rotate.

[0038] In the embodiment, the first distributing disc 302 comprises a first inner ring plate 306 and a first outer ring plate 307, the first inner ring plate 306 and the first outer ring plate 307 are coaxial, and the first outer ring plate 307 is sleeved outside the first inner ring plate 306, a plurality of first cavities 303 are uniformly arranged between the first inner ring plate 306 and the first outer ring plate 307; one end of the first partition plate 304 is installed on the first inner ring plate 306, and the other end of the first partition plate 304 is installed on the first outer ring plate 307; in the direction of rotation of the first distributing disc 302, the leading end of the first partition plate 304 is located in front of the trailing end; a plurality of first baffles 305 in each first cavity 303 are arrayed and installed on a first partition plate 304, and are located on the front side of the first partition plate 304 in the direction of rotation of the first distributing disc 302.

[0039] Specifically, the first inner ring plate 306 is sleeved on the rotating shaft 301, the leading end of the first partition plate 304 is connected with the first inner ring plate 306, the trailing end of the first partition plate 304 is connected with the first outer ring plate 307, when the first partition plate 304 rotates with the first distributing disc 302, the dry ice particles will move along the surface of the first partition plate 304 to the position of the first outer ring plate 307 under the pushing of the first partition plate 304, when passing through the first first baffle 305, the dry ice particles will be left in the included angle between the first partition plate 304 and the first first baffle 305, and the remaining dry ice particles will pass through the first first baffle 305, and then contact the first partition plate 304 again under the rotation of the first partition plate 304, and the above process is repeated, and each first baffle 305 will intercept part of the dry ice particles.

[0040] In another embodiment, the leading end of the first partition plate 304 is installed on the first outer ring plate 307, and the trailing end of the first partition plate 304 is installed on the first inner ring plate 306.

[0041] In the embodiment, the included angle between the side face of each first baffle 305 in the first cavity 303, which faces the leading end of the first partition plate 304, and the first partition plate 304 is an acute angle, and the farther the first baffle 305 away from the leading end of the first partition plate 304, the greater the vertical distance between the end of the first baffle 305 away from the first partition plate 304 and the first partition plate 304.

[0042] Specifically, the included angle between the first baffle 305 and the first partition plate 304 is towards the head end of the first partition plate 304, when the dry ice particles move on the first partition plate 304 from the head end of the first partition plate 304 to the tail end of the first partition plate 304, the first baffle 305 can better intercept the dry ice particles through the included angle between the first baffle 305 and the first partition plate 304; the greater the angle between the first baffle 305 and the first partition plate 304, the more dry ice particles the first baffle 305 can intercept; due to the volatile nature of dry ice, the dry ice particles on the first first baffle 305 volatilize first than the dry ice particles on the second first baffle 305, and the dry ice particles on the first first baffle 305 after volatilization cannot be replenished, in order to make the amount of dry ice particles on each first baffle 305 basically consistent, the first baffles 305 from the head end to the tail end of the first partition plate 304 are sequentially reduced.

[0043] In the embodiment, the sieve plate 308 is sleeved on the rotating shaft 301, the sieve plate 308 is provided with sieve holes 309 for filtering out small dry ice particles on the first distribution disc 302; the first baffle 305 is provided with through holes for sieving small dry ice particles on the first baffle 305.

[0044] Specifically, in order to reduce the influence of the size difference of the dry ice particles on the amount of each first baffle 305 that can be intercepted, small dry ice particles can be discharged from the first distribution disc 302 through the sieve holes 309, which improves the probability that the amount of dry ice particles in each first baffle 305 is basically consistent, and the first baffle 305 is provided with through holes, which can discharge small dry ice particles already on the first baffle 305 to the position of the next first baffle 305 and discharge the first distribution disc 302 through the sieve holes 309 on the sieve plate 308, further improving the probability that the amount of dry ice particles in each first baffle 305 is basically consistent.

[0045] In the embodiment, the distribution assembly further includes a second distribution disc 312, the second distribution disc 312 is sleeved and installed on the rotating shaft 301, the second distribution disc 312 is fixedly connected with the rotating shaft 301 and has the same rotating direction as the first distribution disc 302; the second distribution disc 312 is located below the sieve plate 308 and on the base 201, the second distribution disc 312 is rotatably connected with the base 201, and the second distribution disc 312 is used for uniformly distributing the dry ice particles sieved by the sieve plate 308 and conveying the dry ice particles into the discharge cavity 202.

[0046] Specifically, the second distribution disc 312 comprises a second inner ring plate 316 and a second outer ring plate 317, the second inner ring plate 316 is sleeved and installed outside the rotating shaft 301, the second outer ring plate 317 is sleeved on the second inner ring plate 316, a plurality of second cavities 313 are arranged between the second inner ring plate 316 and the second outer ring plate 317, the second cavities 313 penetrate through the upper and lower end faces of the second distribution disc 312, and a second partition plate 314 is arranged between two adjacent second cavities 313; the second partition plate 314 is divided into a head end and a tail end, the tail end of the second partition plate 314 is installed on the second inner ring plate 316, the head end of the second partition plate 314 is installed on the second outer ring plate 317, and in the direction in which the second distribution disc 312 rotates, the head end of the second partition plate 314 is located in front of the tail end; a plurality of second baffles 315 are arranged on the second partition plate 314, the plurality of second baffles 315 are installed on the side of the second partition plate 314 facing the direction in which the second distribution disc 312 rotates, the second baffles 315 are arrayed on the second partition plate 314, and the distance between the side, away from the second partition plate 314, of the second baffle 315 and the second partition plate 314 gradually decreases in the direction from the head end to the tail end of the second partition plate 314, and the second baffles 315 have the same effect as the first baffles 305.

[0047] Specifically, from the perspective of a top view, the first partition plate 304 and the second partition plate 314 are correspondingly and crossly distributed (as shown in the figure), and under the synchronous rotation of the first distribution disc 302 and the second distribution disc 312, one of the first baffles 305 and one of the second baffles 315 can be simultaneously rotated to above the discharging cavity 202, and can push the dry ice particles to the discharging cavity 202. Figure 9

[0048] In another embodiment, the second distribution disc 312 has the same structure as the first distribution disc 302, and the second distribution disc 312 is arrayed on the rotating shaft 301 by the first distribution disc 302.

[0049] In this embodiment, the sieve plate 308 is provided with a groove 310 located below the sieve hole 309, and a guide plate 311 is installed in the groove 310, the guide plate 311 is used for guiding the dry ice particles screened by the sieve hole 309 to a preset position in the second distribution disc 312.

[0050] Specifically, the preset position is the head end of the second partition plate 314 in the second distribution disc 312, and the guide plate 311 is obliquely arranged, so that the dry ice particles falling from the sieve hole 309 are guided by the guide plate 311 and approach the head end of the second partition plate 314.

[0051] In this embodiment, a spacing is arranged between the discharging port 318 and the sieve hole 309, and the discharging port 318 extends on the sieve plate 308 along the radial direction of the rotating shaft 301, and has an included angle with the first partition plate 304.

[0052] ​Specifically, the dry ice particles falling on the sieve plate 308 pass through the first partition plate 304 when close to the head end of the first partition plate 304, and the smaller dry ice particles will fall from the sieve hole 309. The sieved dry ice particles will pass over the first baffle plate 305 in the process of accumulation, and then pass through the first baffle plate 305 close to the tail end of the first partition plate 304 in turn, so that the remaining dry ice particles have enough time to pass over each first baffle plate 305, so that the distribution of dry ice particles is more uniform; the sieved dry ice particles between the first baffle plate 305 and the first partition plate 304 will move to the above of the drop port 318 in turn.

[0053] In the embodiment, the material conveying assembly further comprises a top plate 204, a material cylinder 205 and a dredging part 104; the top plate 204 is installed on the top of the outer cylinder 203, and the top plate 204 is provided with a feeding port 206 and an air inlet 207; the feeding port 206 is located above the head end of the first partition plate 304, and the air inlet 207 is located above the first cavity 303; the air inlet 207, the drop port 318 and the discharge cavity 202 are located on the same vertical axis; the material cylinder 205 is arranged on the top plate 204, and the material cylinder 205 can communicate with the first cavity 303 through the feeding port 206; the dredging part 104 is arranged on the top plate 204 and is used for dredging the dry ice particles at the position of the feeding port 206. Specifically, the steel ingot surface treatment device for steel production further comprises a shell 101 and an external high-pressure gas pump 402; the top of the shell 101 is openable; the base 201 is installed on the inner bottom of the shell 101; the air inlet 207 penetrates through the shell 101 and is connected with the external high-pressure gas pump 402; the high-pressure gas in the high-pressure gas pump 402 can enter the first cavity 303 located below the air inlet 207 from the air inlet 207, enter the second cavity 313 below the drop port 318 from the first cavity 303, and blow the dry ice particles in the first cavity 303 and the second cavity 313 into the discharge cavity 202, and then discharge from the discharge cavity 202 to the outside of the shell 101; under the blowing of the high-pressure gas, the dry ice particles are sprayed out to clean the surface rust of the steel ingot.

[0054] Specifically, the material cylinder 205 is provided with a stirring shaft, which is used for stirring the dry ice particles in the material cylinder 205; the dredging part 104 comprises a mounting rod, a gas cylinder and a plug rod; the mounting rod is installed on the top plate 204; the gas cylinder is installed on the mounting rod; one end of the plug rod is installed on the gas cylinder; the other end of the plug rod can be slid into the feeding port 206 under the pushing of the gas cylinder, so as to avoid the dry ice particles from being stuck in the feeding port 206.

[0055] In the embodiment, the steel ingot surface treatment device for steel production further comprises a material returning mechanism, the material returning mechanism comprises a temporary storage cavity 401, a pump 402, a returning pipe 403 and a discharging pipe 404; the temporary storage cavity 401 is arranged in the base 201, one end of the returning pipe 403 is arranged at the bottom of the temporary storage cavity 401, and the returning pipe 403 is communicated with the temporary storage cavity 401, the pump 402 is arranged on the top plate 204, the input end of the pump 402 is connected with the end of the returning pipe 403 away from the temporary storage cavity 401, the output end of the pump 402 is connected with one end of the discharging pipe 404, and the other end of the discharging pipe 404 is connected with the output assembly; the first distribution disc 302 and the second distribution disc 312 are both provided with through holes for discharging the excess dry ice particles to the temporary storage cavity 401.

[0056] Specifically, the material returning mechanism further comprises an annular plate 501, a first feeding pipe 502, a connecting cylinder 503 and a second feeding pipe 504; the annular plate 501 is arranged in the inner part of the outer cylinder 203, and the annular plate 501 is sleeved on the first distribution disc 302, one end of the first feeding pipe 502 is connected with the annular plate, the other end of the first feeding pipe 502 is communicated with the temporary storage cavity 401, a plurality of through holes are arranged on the first outer annular plate 307 of the first distribution disc 302, each through hole on the first outer annular plate 307 is communicated with a corresponding first cavity 303, and each through hole on the first outer annular plate 307 can be communicated with the first feeding pipe 502, and the dry ice particles at the tail end of the first partition plate 304 in the first cavity 303 can enter the temporary storage cavity 401 through the first feeding pipe 502; the connecting cylinder 503 is arranged on the base 201, and the connecting cylinder 503 is coaxial with the rotating shaft 301, the second inner annular plate 316 of the second distribution disc 312 is sleeved on the connecting cylinder 503, the second inner annular plate 316 is rotationally connected with the connecting cylinder 503, a plurality of through holes are arranged on the second inner annular plate 316, each through hole on the second inner annular plate 316 is communicated with a corresponding second cavity 313, and each through hole on the second inner annular plate 316 can be communicated with the second feeding port 206, and the dry ice particles at the tail end of the second partition plate 314 in the second cavity 313 can enter the temporary storage cavity 401 through the second feeding pipe 504; the pump 402 can suck the dry ice particles in the temporary storage cavity 401 through the discharging pipe 404, and then discharge the dry ice particles into the material cylinder 205 through the returning pipe 403, so as to realize the recycling of the dry ice particles.

[0057] In the embodiment, the piston disc 102 and the partition disc 103 are arranged between the first distribution disc 302 and the top plate 204, the piston disc 102 is arranged on the bottom of the top plate 204 in the vertical direction, the partition disc 103 is sleeved on the rotating shaft 301, and the partition disc 103 is fixedly connected with the piston disc 102; the partition disc 103 and the piston disc 102 are provided with through holes for communicating the air inlet 207 with the material falling port 318, and the partition disc 103 is further provided with through holes for the dry ice particles to pass through.

[0058] Specifically, the top plate 204 is provided with a sliding groove, the piston disc 102 can slide in the sliding groove, and the piston disc 102 is provided with a sliding sealing ring on the peripheral surface; the diameter of the through hole provided on the piston disc 102 is smaller than the diameter of the gas inlet 207, when the high-pressure gas is introduced into the gas inlet 207, the gas pushes the piston disc 102 to slide in the sliding groove, the piston disc 102 pushes the partition disc 103 to tightly adhere to the first distribution disc 302, the sealing property between each first cavity 303 is improved, the high-pressure gas is prevented from entering the barrel 205 through the gap between the partition disc 103 and the first distribution disc 302, and the safety hazard is reduced.

[0059] The working principle and working method of the steel ingot surface treatment device for steel production provided in the embodiment are as follows:

[0060] Firstly, the dry ice particles are poured into the barrel 205 by opening the top of the shell 101, the stirring shaft in the barrel 205 is started to stir the dry ice particles, then the external high-pressure gas pump 402 is started to introduce the high-pressure gas from the gas inlet 207, the high-pressure gas enters one first cavity 303 in the first distribution disc 302 through the through hole on the piston disc 102 and the partition disc 103, then is introduced into one second cavity 313 in the second distribution disc 312 from the discharging port 318 on the sieve plate 308, and finally is discharged from the discharging cavity 202.

[0061] Simultaneously, the cylinder is activated, causing the insert rod to slide within the feed inlet 206, preventing dry ice particles from clogging the feed inlet 206. Then, the reduction motor 505 is activated, driving the rotating shaft 301 to rotate. The rotating shaft 301 then drives the first distribution plate 302 and the second distribution plate 312 to rotate. When one of the first cavities 303 in the first distribution plate 302 rotates below the feed inlet 206, the dry ice particles in the cylinder 205 fall through the feed inlet 206 into the first cavity 303 near the first inner ring plate 306. With the rotation of the first distribution plate 302, the leading end of one of the first partition plates 304 first contacts the dry ice particles, pushing them to move on the sieve plate 308. During this movement, smaller dry ice particles pass through the sieve holes 309 into the second distribution plate 312. 4. The dry ice particles are pushed to move, and the dry ice particles accumulate on the first partition 304 and the first baffle 305 closest to the head of the first partition 304. Excess dry ice particles will move past the first baffle 305 to the tail of the first partition 304, and then be blocked by the next first baffle 305, and so on. The remaining dry ice particles will eventually be at the angle between the first outer ring plate 307 and the first partition 304. When the through hole on the first outer ring plate 307 is connected to the first feed pipe 502, the remaining dry ice particles will enter the temporary storage chamber 401 from the first feed pipe 502. Then, the first partition 304 will push the dry ice particles intercepted by the first baffle 305 to continue to rotate until the first baffle 305 moves above the discharge port 318. Under its own gravity and the blowing of high-pressure gas, the dry ice particles fall from the discharge port 318 into the discharge chamber 202.

[0062] Dry ice particles falling from the sieve holes 309 land on the guide plate 311. Guided by the guide plate 311, the dry ice particles fall into one of the second cavities 313 in the second distribution plate 312. The first end of the second partition plate 314 contacts the dry ice particles first. Then, as the second distribution plate 312 rotates, the dry ice particles move along the second partition plate 314 towards its tail end. The second baffle plate 315 intercepts the dry ice particles and moves them along the second partition plate 314 towards its tail end. As the second inner ring plate 316 approaches, the dry ice particles that reach the position of the second inner ring plate 316 will enter the second feed pipe 504 through the through hole on the second inner ring plate 316, and then enter the temporary storage chamber 401. The dry ice particles intercepted by the second baffle 315 will be pushed by the second partition 314 to move above the discharge chamber 202, and then fall into the discharge chamber 202. Together with the dry ice particles in the first cavity 303, they will be blasted out by high-pressure gas to treat the surface of the steel ingot.

[0063] Dry ice particles that fall into the temporary storage chamber 401 are drawn into the return pipe 403 by the pump 402, and then returned to the material cylinder 205 through the return pipe 403.

[0064] The technical features of the above embodiments can be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not contradict each other, they should be considered to be within the scope of the present disclosure.

[0065] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A surface treatment device for steel ingots used in steel production, characterized in that, include: Feeding mechanism; The feeding mechanism includes a base, an outer cylinder, a conveying assembly, and a distributing assembly; the base is horizontally positioned and has a discharge chamber. The outer cylinder is mounted on the base; the conveying assembly is located above the outer cylinder and is used to convey dry ice pellets to the dispensing assembly; The dispensing assembly is mounted on the base and located inside the outer cylinder. The dispensing assembly includes a rotating shaft, a first dispensing disc, and a sieve plate. The rotating shaft is vertically mounted on the base and can rotate relative to the base around its own axis. The first dispensing disc is sleeved and installed on the rotating shaft. The first dispensing disc has multiple individual first cavities evenly distributed inside. Each first cavity extends through the upper and lower end faces of the first dispensing disc. A first partition is provided between two adjacent first cavities. The first partition has a head end and a tail end. The sieve plate is mounted on the outer cylinder and is rotatably connected to the bottom of the first dispensing disc. A discharge port is opened on the sieve plate located directly above the discharge chamber. During the rotation of the first dispensing disc, the dry ice particles in the first cavity can be conveyed from the head end to the tail end of the first partition. Each first cavity has multiple first baffles arranged in an array along a direction away from the rotating shaft. Each first baffle can intercept the dry ice particles moving from the head end to the tail end of the first partition in the corresponding first cavity. When the first distribution plate rotates, each first cavity can be connected to the discharge cavity through the discharge port, and each first baffle in each first cavity can push the intercepted dry ice particles into the discharge cavity; the high-pressure gas is sprayed out after being mixed with the dry ice particles in the distribution component and the discharge cavity.

2. The steel ingot surface treatment device for steel production according to claim 1, characterized in that, The first distribution plate includes a first inner ring plate and a first outer ring plate, and a plurality of first cavities are evenly arranged between the first inner ring plate and the first outer ring plate; one end of the first partition plate is installed on the first inner ring plate, and the other end of the first partition plate is installed on the first outer ring plate; in the direction of rotation of the first distribution plate, the first end of the first partition plate is located in front of the tail end. Multiple first baffle arrays in each first cavity are mounted on the first partition and are located on the front side of the first partition facing the rotation direction of the first distribution plate.

3. The steel ingot surface treatment device for steel production according to claim 2, characterized in that, The angle between the side of each first baffle facing the head end of the first partition and the first partition is an acute angle, and the vertical distance between the side of the first baffle away from the head end of the first partition and the first partition is greater.

4. The steel ingot surface treatment device for steel production according to claim 2, characterized in that, The sieve plate is fitted onto the rotating shaft and has sieve holes for filtering out small dry ice particles on the first distribution plate; the first baffle plate has through holes for screening out fine dry ice particles on the first baffle plate.

5. The steel ingot surface treatment device for steel production according to claim 4, characterized in that, The material distribution assembly also includes a second material distribution plate, which is sleeved on the rotating shaft and rotates in the same direction as the first material distribution plate. The second material distribution plate is located below the sieve plate and on the base. The second material distribution plate is rotatably connected to the base. The second material distribution plate is used to evenly distribute the dry ice particles after they have been screened by the sieve plate and then transport them to the discharge chamber.

6. The steel ingot surface treatment device for steel production according to claim 5, characterized in that, The sieve plate has a groove located below the sieve holes. A guide plate is installed in the groove and is used to guide the dry ice particles after sieving through the sieve holes to a preset position in the second distribution tray.

7. The steel ingot surface treatment device for steel production according to claim 4, characterized in that: There is a gap between the discharge port and the screen hole, and the discharge port extends radially along the rotating shaft on the screen plate, with an angle between it and the first partition plate.

8. The steel ingot surface treatment device for steel production according to claim 7, characterized in that, The feeding assembly also includes a top plate, a material cylinder, and a clearing section. The top plate is installed on the top of the outer cylinder and has a feed inlet and an air inlet. The feed inlet is located above the first end of the first partition, and the air inlet is located above the first cavity. The air inlet, the discharge port, and the discharge chamber are located on the same vertical axis. The material cylinder is set on the top plate and can communicate with the first cavity through the feed inlet. The clearing section is set on the top plate and is used to clear the dry ice particles at the feed inlet.

9. The steel ingot surface treatment device for steel production according to claim 8, characterized in that, It also includes a return mechanism, which includes a temporary storage chamber, a pump, a return pipe, and a discharge pipe. The temporary storage chamber is located in the base, one end of the return pipe is installed at the bottom of the temporary storage chamber and is connected to the temporary storage chamber, the pump is located on the top plate, the input end of the pump is connected to the end of the return pipe away from the temporary storage chamber, the discharge end of the pump is connected to one end of the discharge pipe, and the other end of the discharge pipe is connected to the output component. Both the first and second distribution plates have through holes for discharging excess dry ice particles into the temporary storage chamber.

10. The steel ingot surface treatment device for steel production according to claim 8, characterized in that, A piston disc and a partition disc are provided between the first distribution disc and the top plate. The piston disc is slidably disposed at the bottom of the top plate in the vertical direction. The partition disc is sleeved on the rotating shaft and is fixedly connected to the piston disc. The partition disc and the piston disc are provided with through holes that connect the air inlet and the material outlet. The partition disc is also provided with through holes for dry ice particles to pass through.

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