Screening device for steel slag micropowder

Abstract

The utility model belongs to the technical field of steel slag micro-powder treatment, and particularly relates to a steel slag micro-powder screening device which comprises a machine frame capable of enabling screened steel slag micro-powder to flow out of the device in a specific area, and a material screening assembly capable of continuously screening steel slag continuously injected into the device is arranged in the machine frame. A material guiding assembly capable of guiding steel slag injected into the device into the material screening assembly is arranged on one side of the machine frame, and a driving assembly capable of driving the device to operate at a certain speed is arranged above the machine frame. According to the steel slag screening device, steel slag to be screened is conveniently and continuously guided into the semi-closed screening cylinder capable of conveying the steel slag in the fixed direction through the material guiding assembly, the steel slag is prevented from overflowing during screening, and the situation that the screening efficiency of the device is reduced due to blockage caused by the steel slag is avoided through the cleaning piece capable of rotating together with the screening cylinder.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel slag micropowder processing, and in particular relates to a steel slag micropowder screening device. Background Art

[0002] Steel slag is an inevitable byproduct of the steelmaking process and is also a solid waste resource with a low utilization rate in the steel industry. Studies have shown that adding steel slag powder to concrete can significantly improve the macroscopic properties of concrete, but the particle size of the steel slag powder added to concrete needs to be controlled to ensure the fluidity of the concrete and reduce the generation of pores. Therefore, after the steel slag is crushed, the steel slag powder that meets the use requirements needs to be screened out.

[0003] A Chinese patent document with authorization announcement number CN219880500U discloses a steel slag powder screening device, which, through the mutual coordination of a vibration plate and a vibration rod, allows the upper position of the screen frame to vibrate the screen up and down to reduce the possibility of clogging of the screen mesh, and controls the sliding speed of the steel slag through a height limiting mechanism so that the steel slag can be in more sufficient contact with the screen.

[0004] However, in the prior art, it is necessary to strictly control the amount of steel slag added to the screening device to prevent it from overflowing and mixing into the screened fine powder. Moreover, after continuous operation of the screening device, some of the screen meshes may still be blocked, resulting in a decrease in screening efficiency. Therefore, a screening device for steel slag fine powder is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a screening device for steel slag powder.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A slag powder screening device, comprising a frame capable of allowing the screened slag powder to flow out of the device in a specific area, a screening material assembly capable of continuously screening the slag continuously injected into the device arranged in the frame, a material guide assembly capable of guiding the slag injected into the device into the screening material assembly arranged on one side of the frame, and a driving assembly capable of driving the device to operate at a certain speed arranged above the frame;

[0008] The screening material assembly comprises a screening drum which can laterally transport and screen the steel slag after operation, a cleaning piece which can prevent the steel slag from causing blockage, and a transmission piece which can make the screening drum and the cleaning piece operate synchronously.

[0009] Preferably: the screening cylinder comprises a roller group fixedly installed in the frame, a limit ring is arranged between the roller groups with the same lateral position, a cylinder body is fixedly connected between the limit rings, a spiral guide sheet is fixedly installed in the cylinder body, and a screen is fixedly connected to the cylinder body.

[0010] Preferably, the cleaning member comprises shaft seats fixedly mounted in the frame, a rotating shaft is movably connected between the shaft seats, and a licker-in roller is fixedly connected to the outer side of the rotating shaft.

[0011] Preferably, the transmission member comprises a gear ring fixedly connected to the outer side of the cylinder, and a gear is fixedly connected to the outer side of the rotating shaft.

[0012] Preferably, the screening material assembly further comprises a combined protective cover fixedly installed in the frame.

[0013] Preferably, the shaft seat is rotatably connected to the rotating shaft.

[0014] Preferably, the ring gear is meshingly connected with the gear.

[0015] Preferably: a pricking rod is arranged on the outer side of the pricking roller, the diameter of the pricking rod is smaller than the aperture of the sieve hole of the screen, and the pricking rod is made of a material that can be slightly deformed and rebound to its original shape.

[0016] The beneficial effects of the utility model are as follows: the steel slag to be screened can be continuously introduced into a semi-enclosed screening drum which can transport the steel slag in a fixed direction through the material guide component to prevent the steel slag from overflowing during screening, and the cleaning member which can rotate simultaneously with the screening drum can prevent blockage caused by the steel slag from causing a decrease in the screening efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 It is an isometric structural schematic diagram of a steel slag powder screening device according to the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of a steel slag powder screening device according to the utility model;

[0020] Figure 3 yes Figure 1 A schematic diagram of a material-conducting base structure;

[0021] Figure 4 yes Figure 1 Schematic diagram of the structure of some parts;

[0022] Figure 5 yes Figure 4 Schematic diagram of the structure of some parts;

[0023] Figure 6 yes Figure 2 AA section structural diagram;

[0024] Figure 7The utility model is a schematic diagram of the cross-sectional structure of some parts of a screening device for steel slag powder.

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Frame; 101. Material-guiding base; 102. Folding frame; 2. Screening assembly; 201. Roller group; 202. Limiting ring; 203. Cylinder; 204. Spiral material-guiding sheet; 205. Screen; 206. Shaft seat; 207. Rotating shaft; 208. Take-in roller; 209. Gear ring; 210. Gear; 211. Combined protective cover; 3. Material-guiding assembly; 301. Feed hopper; 302. Material-guiding pipe; 4. Driving assembly; 401. First pulley; 402. Motor; 403. Second pulley; 404. Belt. DETAILED DESCRIPTION

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The present invention is further described below by way of embodiments in conjunction with the accompanying drawings.

[0030] like Figure 1-Figure 7As shown, a screening device for steel slag powder comprises a frame 1 which can make the screened steel slag powder flow out of the device in a specific area, a screening material assembly 2 which can continuously screen the steel slag continuously injected into the device is arranged in the frame 1, a material guide assembly 3 which can guide the steel slag injected into the device into the screening material assembly 2 is arranged on one side of the frame 1, and a driving assembly 4 which can drive the device to operate at a certain speed is arranged above the frame 1.

[0031] In this embodiment:

[0032] The frame 1 includes a material-conducting base 101, to which a folding frame 102 is fixedly connected; the material-conducting base 101 provides an installation position for some parts of the screening assembly 2, and after receiving the steel slag powder screened out of the screening assembly 2, it is guided out of the device along a fixed direction, and the folding frame 102 provides an installation position for some parts of the screening assembly 2, the material-conducting assembly 3, and the driving assembly 4.

[0033] In this embodiment:

[0034] The screening component 2 includes a screening drum that can laterally transport and screen steel slag after operation, a cleaning piece that can avoid blockage caused by steel slag, and a transmission piece that can make the screening drum and the cleaning piece operate synchronously. The screening drum includes a roller group 201 fixedly installed in the frame 1, and a limit ring 202 is arranged between the roller groups 201 with the same lateral position. A cylinder 203 is fixedly connected between the limit rings 202, and a spiral guide piece 204 is fixedly installed in the cylinder 203. A screen 205 is fixedly connected to the cylinder 203. The cleaning piece includes a shaft seat 206 fixedly installed in the frame 1, and a rotating shaft 207 is movably connected between the shaft seats 206. A licker-in roller 208 is fixedly connected to the outer side of the rotating shaft 207. The transmission piece includes a gear ring 209 fixedly connected to the outer side of the cylinder 203, and a gear 210 is fixedly connected to the outer side of the rotating shaft 207. The screening component 2 also includes a combined protective cover 211 fixedly installed in the frame 1;

[0035] The shaft seat 206 is rotatably connected to the rotating shaft 207, the gear ring 209 is meshedly connected to the gear 210, and a pricking rod is arranged on the outer side of the pricking roller 208. The diameter of the pricking rod is smaller than the aperture of the sieve mesh 205, and the pricking rod is made of a material that can be slightly deformed and rebound to its original shape.

[0036] The movable range of the limiting ring 202 connected to the two ends of the cylinder 203 is limited by the roller group 201, and the cylinder 203 can rotate above the guide base 101. The cylinder 203, the spiral guide piece 204 and the screen 205 limit the travel area of ​​the slag injected by the guide assembly 3 in the device. After the cylinder 203 rotates, the spiral guide piece 204 can rotate with the cylinder 203 and transport the slag entering the screening assembly 2 horizontally. The slag with the required particle size can fall on the guide base after passing through the sieve holes of the screen 205. In 101, the rotating shaft 207 is installed above the cylinder 203 through the shaft seat 206, and the rotating shaft 207 drives the licker-in roller 208 and the gear 210 to rotate. After the licker-in rod connected to the outer side of the licker-in roller 208 is inserted into the sieve holes of the screen 205, the steel slag blocked in the sieve holes of the screen 205 can be pushed back into the screening cylinder, and the rotation of the rotating shaft 207 is transmitted to the ring gear 209 through the gear 210, so that the ring gear 209 can drive the cylinder 203 to rotate, and the combined protective cover 211 provides protection for the ring gear 209 and the gear 210.

[0037] In this embodiment:

[0038] The material guide assembly 3 includes a feed hopper 301 fixedly installed in the folding frame 102, and a material guide pipe 302 is fixedly connected below the feed hopper 301; the steel slag to be screened injected into the device is received by the feed hopper 301, and the steel slag in the feed hopper 301 is introduced into a certain depth in the cylinder 203 through the material guide pipe 302.

[0039] In this embodiment:

[0040] The driving assembly 4 includes a first pulley 401 fixedly connected to one end of the rotating shaft 207, a motor 402 is fixedly installed on the folding frame 102, a second pulley 403 is fixedly connected to the output end of the motor 402, and a belt 404 is arranged between the first pulley 401 and the second pulley 403; the rotation of the output end of the motor 402 is transmitted to the rotating shaft 207 through the second pulley 403, the belt 404 and the first pulley 401, so that the motor 402 can drive the rotating shaft 207 to rotate at a certain speed.

[0041] Working principle:

[0042] When the device is installed and used for screening steel slag powder, after the motor 402 drives the rotating shaft 207 to rotate, the steel slag to be screened can be injected into the feed hopper 301. Under the action of gravity, the steel slag will enter a certain depth in the cylinder 203 along the guide pipe 302. Since the rotating shaft 207 can drive the cylinder 203 to rotate through the gear 210 and the ring gear 209, and the spiral guide piece 204 and the cylinder 203 rotate synchronously, the spiral guide piece 204 can transport the steel slag laterally after the cylinder 203 rotates. Under the obstruction of the screen 205, the steel slag powder with the particle size meeting the requirements can pass through the sieve holes of the screen 205 during the lateral movement, and after falling to the guide base 101, it slides to the bottom of the feed hopper 301 until it leaves the device. The steel slag with the particle size not meeting the requirements will be transported laterally to the bottom of the driving component 4 by the continuously rotating spiral guide piece 204 and leave the device.

[0043] During the process of screening the slag, since the gear ring 209 and the gear 210 are meshed and connected, the licker-in roller 208 can rotate simultaneously with the cylinder 203. During the rotation of the licker-in roller 208, the licker-in rods evenly arranged on its surface will continue to be inserted into the sieve holes of the screen 205 rotating with the cylinder 203, so as to push the slag blocked in the sieve holes back into the cylinder 203, so that it can continue to be transported out of the device laterally by the spiral guide sheet 204.

[0044] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A screening device for steel slag powder, characterized in that: The invention comprises a frame (1) capable of allowing the screened steel slag powder to flow out of the device in a specific area, a screening material assembly (2) capable of continuously screening the steel slag continuously injected into the device is arranged in the frame (1), a material guide assembly (3) capable of guiding the steel slag injected into the device into the screening material assembly (2) is arranged on one side of the frame (1), and a driving assembly (4) capable of driving the device to operate at a certain speed is arranged above the frame (1); The screening component (2) comprises a screening drum capable of laterally conveying and screening steel slag after operation, a cleaning member capable of preventing blockage caused by the steel slag, and a transmission member capable of making the screening drum and the cleaning member operate synchronously.

2. The slag powder screening device according to claim 1, characterized in that: The screening cylinder comprises a roller group (201) fixedly mounted in the frame (1), a limiting ring (202) is arranged between the roller groups (201) at the same lateral position, a cylinder body (203) is fixedly connected between the limiting rings (202), a spiral guide sheet (204) is fixedly mounted in the cylinder body (203), and a screen (205) is fixedly connected to the cylinder body (203).

3. The slag powder screening device according to claim 2, characterized in that: The cleaning member comprises an axle seat (206) fixedly mounted in the frame (1), a rotating shaft (207) is movably connected between the axle seats (206), and a licker-in roller (208) is fixedly connected to the outer side of the rotating shaft (207).

4. The slag powder screening device according to claim 3, characterized in that: The transmission member comprises a gear ring (209) fixedly connected to the outer side surface of the cylinder (203), and a gear (210) is fixedly connected to the outer side surface of the rotating shaft (207).

5. The slag powder screening device according to claim 4, characterized in that: The screening material assembly (2) further comprises a combined protective cover (211) fixedly mounted in the frame (1).

6. The slag powder screening device according to claim 3, characterized in that: The shaft seat (206) is rotatably connected to the rotating shaft (207).

7. The slag powder screening device according to claim 4, characterized in that: The gear ring (209) is meshingly connected with the gear (210).

8. The slag powder screening device according to claim 3, characterized in that: The pricking rod is arranged on the outer side of the pricking roller (208), the diameter of the pricking rod is smaller than the aperture of the sieve hole of the sieve (205), and the pricking rod is made of a material that can be slightly deformed and rebound to its original shape.

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