Disc type coal blending and feeding system for preparing coking coal

Abstract

The invention discloses a disc type coal blending and feeding system for preparing coking coal, which comprises a disc feeder and a horizontal conveyor, and the disc feeder comprises a coal blending material frame which is rotationally driven and provided with a feeding disc; according to the coal blending and feeding device, the fixedly-mounted spiral material distributing plate is additionally arranged in the coal blending frame, the dredging assembly which is located on the inner side of the middle of the spiral material distributing plate and extends into the feeding sleeve is fixed to the axis position of the feeding disc, and in the coal blending and feeding process, the rotating dredging assembly stirs and dredges coal in the feeding sleeve; the fixedly mounted spiral material distribution plate is used for guiding the coal to be orderly conveyed from the middle part of the feeding disc to a discharge hole in the side part along a spiral material distribution path, the coal is controlled to be intensively and spirally conveyed from inside to outside, and the diffusion range of the coal is narrowed; and the phenomena of coal scattering and coal piling are prevented to a certain extent.

Description

Technical Field

[0001] The invention relates to the technical field of coal blending and feeding, and more specifically to a disc type coal blending and feeding system for preparing coking coal. Background Art

[0002] my country is a major producer and exporter of coke in the world. Its coke output accounts for about 36% of the world's total coke output, and its coke exports account for more than 50% of the world's total coke export trade. 70% of the quality of coke is determined by the properties of the blending coal. In order to produce coke that meets the requirements of blast furnace ironmaking, it is necessary to provide blending coal that meets certain quality requirements. The accuracy of various coal proportions and the reliability of the coal blending system are important links in the entire coking production, which are of great significance to the production of high-quality coke, the rational use of coal resources and the reduction of production costs.

[0003] Coal blending is an important process in the preparation of coking coal. The equipment of the coal blending system mainly includes a coal blending bin, a feeding sleeve, a feeding disc, a mechanical drive structure, etc. However, the lower part of the traditional coal blending bin is not equipped with a clearing and unblocking structure. When the moisture content of the coal is high or the fluidity is poor, it is easy to be blocked in the feeding sleeve during the falling process of the coal; in addition, the coal is prone to splashing and scattering during the rotation of the disc, making it difficult to transport the coal along the set motion trajectory to the outside of the discharge port, thus affecting production efficiency and environmental cleanliness, and there are certain disadvantages.

[0004] To this end, we propose a disc-type coal blending and feeding system for coking coal preparation to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that there is no dredging structure between the existing feeding sleeve and the feeding disc, which may easily cause material discharge blockage and coal spillage during the rotation of the disc. Compared with the prior art, a disc-type coal blending and feeding system for coking coal preparation is provided, in which a spiral distribution plate is added inside the coal blending frame, and a dredging component extending to the inside of the feeding sleeve is arranged at the axial position of the feeding disc. During the coal blending and feeding process, the synchronously rotating dredging component stirs and dredges the coal in the feeding sleeve, and the spiral distribution plate is used to guide the coal to be spirally transported from the inside to the outside along the material path, thereby reducing the diffusion range of the coal under high-speed rotating centrifugation and preventing coal spillage and coal piling to a certain extent.

[0006] The object of the present invention can be achieved by the following technical scheme: a disc-type coal-blending feeding system for coking coal preparation, comprising a disc feeder and a horizontal conveyor, the disc feeder comprising a coal-blending frame that is rotatably driven to be installed with a feeding disc, a coal-blending bin with a feeding sleeve at the bottom end is fixedly installed on the coal-blending frame, the coal-blending bin and the feeding disc axis are in the same vertical direction, and the bottom end of the feeding sleeve extends above the feeding disc axis, a spiral distribution plate whose bottom end is movably connected to the upper end surface of the feeding disc is fixedly installed on the inner wall of the coal-blending frame, a discharge port that is connected to one end of the outer side of the spiral distribution plate and is located above the end of the coal-blending bin is opened on the front end wall of the coal-blending frame, and a coal scraper plate that extends from the outer end to the discharge port is also rotatably installed on the outer end wall of the spiral distribution plate;

[0007] A dredging component located on the inner side of the middle part of the spiral feeding plate is fixed at the axial position of the feeding disc, the upper end of the dredging component extends into the feeding sleeve, and a material guide disc compatible with the dredging component is fixedly installed inside the feeding sleeve, and a material guide port that passes through from top to bottom is opened on one side of the material guide disc.

[0008] Furthermore, the feeding disc is a convex structure that is wide at the top and narrow at the bottom. A convex rotating groove is provided at the bottom of the coal distribution frame, and a sealing ring is fixedly nested on the outer wall of the feeding disc and is sealingly connected to the inner wall of the convex rotating groove. A bevel gear disc is fixedly installed at the bottom end of the feeding disc, and a bevel gear column meshing with the bevel gear disc is rotatably installed on the outer end wall of the coal distribution frame. A driving mechanism for rotationally driving the bevel gear column is also installed at the outer end of the coal distribution frame.

[0009] Furthermore, the outer end of the spiral distribution plate is fixedly connected to the inner wall of the coal distribution frame through a plurality of embedded plates. The spiral distribution plate is a spiral structure extending from the middle position of the feeding disc toward one side of the discharge port. A fixedly installed spiral distribution plate is added to the coal distribution frame. The middle position of the spiral distribution plate is connected with the bottom of the feeding sleeve. When the coal is guided downward by the feeding sleeve, it falls into the middle position of the distribution path. During the continuous rotation of the feeding disc, it is used to guide the coal to be transported in an orderly manner from the middle of the feeding disc to the discharge port at the edge along the spiral distribution path, control the concentrated spiral transportation of the coal from the inside to the outside, effectively prevent the coal from splashing and spreading to all parts of the inner wall of the coal distribution frame during the offline rotation, thereby preventing the occurrence of coal scattering and coal piling to a certain extent.

[0010] Furthermore, the coal scraper plate is arranged obliquely outward along the extension direction of the outer end of the distribution path, and the inner end of the coal scraper plate is rotatably installed on the outer end wall of the spiral distribution plate through a connecting shaft. A transmission frame with an inner end fixedly mounted on the coal scraper plate is fixedly installed on the coal distribution frame, a driving motor is installed at the outer bottom end of the transmission frame, and a transmission chain structure connected between the driving shaft of the driving motor and the connecting shaft is installed inside the transmission frame, so that the coal scraper plate can automatically rotate along the axial direction of the connecting shaft, and the closing position of the outer end of the coal scraper plate relative to the discharge port is changed, thereby adjusting the opening size of the discharge port, and coordinating with the adjustment of the rotation speed of the feeding disc to adapt to different discharge requirements.

[0011] Furthermore, the dredging assembly includes a conical distribution column fixed at the center position of the feeding disc, the upper end of the conical distribution column extends to the bottom of the feeding sleeve and is fixed with a dredging column passing through the axis of the guide disc, the dredging column extends upward to the bottom of the coal distribution bin, and the outer end wall of the conical distribution column is annularly distributed with multiple material-discharging plates located below the guide disc.

[0012] Furthermore, the conical distribution column is a conical structure that is narrow at the top and wide at the bottom, and the material-shifting piece is a triangular structure with the long side positioned on the conical distribution column. The dredging shafts and material-shifting pieces arranged in groups are distributed in the upper and lower directions of the guide disc. During the rotation of the feeding disc, the dredging components rotate synchronously, and the dredging shafts and material-shifting pieces are respectively used to stir and dredge the coal inside and outside the circulating guide port, which can effectively prevent the coal from accumulating and clogging in the feeding sleeve on the one hand, and effectively disperse the coal falling from the guide disc on the other hand.

[0013] Furthermore, the upper end surface of the guide disk is provided with a guide surface which is inclined downward from the edge to the middle, and the guide port is provided on the guide surface. The opening size of the guide port is set according to actual needs. The dredging component also includes a plurality of dredging shafts which are annularly fixed on the dredging column and inclined upward along the guide surface. When the conical material distribution column rotates with the feeding disc, a plurality of synchronously rotating material prying pieces stir and dredge the coal falling from the guide port, and the conical material distribution column with a conical structure is used to disperse the fallen coal to a certain extent, so as to avoid the fallen coal from accumulating in the middle of the feeding disc.

[0014] Furthermore, a coal scraper seat is fixedly installed on the bottom of the feeding sleeve, which is located below the material guide plate and avoids the material guide port. A semi-conical coal scraper groove is provided on the inner side of the coal scraper seat, which is in active contact with the upper end wall of the material stripping piece. The coal scraper seat is arranged away from the material guide port, and an additional coal scraper seat with a semi-conical coal scraper groove is provided, which is beneficial to scraping away the coal seam adhering to the material stripping piece.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) This scheme is to add a fixedly installed spiral distribution plate inside the coal blending frame, and a dredging component located on the inner side of the middle of the spiral distribution plate and extending to the inside of the feeding sleeve is fixed at the axial position of the feeding disc. During the coal blending and feeding process, the dredging component rotates synchronously with the feeding disc to stir and dredge the coal in the feeding sleeve, so that the coal is dispersed smoothly in the middle of the feeding disc. During the circumferential rotation of the feeding disc, the fixedly installed spiral distribution plate is used to guide the coal to be transported in an orderly manner from the middle of the feeding disc to the discharge port at the edge, control the coal to be concentratedly spirally transported from the inside to the outside along the set path, reduce the diffusion range of the coal under high-speed centrifugal rotation, and prevent the occurrence of coal scattering and coal piling to a certain extent.

[0017] (2) This scheme also sets the coal scraper plate to rotate, changing the closing position of the outer end of the coal scraper plate relative to the discharge port, thereby adjusting the opening size of the discharge port and coordinating the rotation speed of the feeding disc to adapt to different discharge requirements.

[0018] (3) The dredging assembly in this scheme is composed of a conical distribution column, a material-discharging piece, a dredging column and a dredging shaft. During the rotation of the feed disc, the dredging assembly rotates synchronously. The dredging shaft and the material-discharging piece arranged in groups are distributed in the upper and lower directions of the material guide disc, and are respectively used to stir and dredge the coal material inside and outside the flow guide port. On the one hand, it effectively prevents the coal material from accumulating and clogging in the feed sleeve, and on the other hand, it effectively disperses the coal material falling from the material guide disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the disc feeder of the present invention;

[0021] Figure 3 A bottom view of the disc feeder of the present invention;

[0022] Figure 4 is a cross-sectional view of the disc feeder of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the joint between the coal distribution frame and the spiral distribution plate of the present invention;

[0024] Figure 6 A top cross-sectional view of the present invention showing the coal being conveyed along the distribution path of the spiral distribution plate;

[0025] Figure 7 It is a schematic diagram of the structure of the joint between the feeding sleeve, the disc and the conical distribution column of the present invention;

[0026] Figure 8It is a top view of the joint between the feeding sleeve and the conical distribution column of the present invention;

[0027] Fig. 9 It is a bottom view of the joint between the feeding sleeve and the conical distribution column of the present invention;

[0028] Fig.10 It is a cross-sectional view of the joint between the feeding sleeve and the conical distribution column of the present invention.

[0029] Description of the numbers in the figure:

[0030] 1. Coal distribution frame; 101. Discharge port; 102. Guide plate; 2. Coal distribution bin; 3. Feed sleeve; 4. Feed disc; 5. Spiral distribution plate; 6. Coal scraper plate; 7. Transmission frame; 8. Conical distribution column; 9. Diverter plate; 10. Dredge column; 11. Guide disc; 111. Guide port; 12. Coal scraper seat; 13. Dredge shaft. DETAILED DESCRIPTION

[0031] The following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0032] Example 1: The present invention discloses a disc-type coal blending and feeding system for coking coal preparation, see Figure 1 , a disc feeder and a horizontal conveyor, including a disc feeder including a coal distribution frame 1 that is rotatably driven and installed with a feeding disc 4, a coal distribution bin 2 with a feeding sleeve 3 at the bottom end is fixedly installed on the coal distribution frame 1, the axes of the coal distribution bin 2 and the feeding disc 4 are in the same vertical direction, and the bottom end of the feeding sleeve 3 extends above the axis of the feeding disc 4.

[0033] See also Figure 2-Figure 4 and Figure 7 The feeding disc 4 is a convex structure that is wide at the top and narrow at the bottom. A convex rotating groove is provided at the bottom of the coal material frame 1, and a sealing ring that is fixedly embedded in the outer wall of the feeding disc 4 and is sealed and connected with the inner wall of the convex rotating groove is fixedly installed. A bevel gear disc is fixedly installed at the bottom end of the feeding disc 4;

[0034] A bevel gear column meshing with the bevel gear disc is rotatably mounted on the outer end wall of the coal distribution frame 1. A driving mechanism for rotating the bevel gear column is also mounted on the outer end of the coal distribution frame 1. The driving mechanism is composed of a driving motor and a reducer to drive the feeding disc 4 to perform circular rotational motion.

[0035] See also Figure 4The inner wall of the coal distribution frame 1 is fixedly provided with a spiral distribution plate 5, the bottom end of which is movably connected with the upper end surface of the feeding disc 4. The bottom end of the spiral distribution plate 5 is sealingly and movably connected with the upper end surface of the feeding disc 4. In order to improve the sealing performance, a sealing layer can be added to the bottom end of the spiral distribution plate 5. The front end wall of the coal distribution frame 1 is provided with a discharge port 101 which is connected with one end of the outer side of the spiral distribution plate 5 and is located above the end of the coal distribution bin 2;

[0036] A coal scraper 6 is rotatably mounted on the outer end wall of the spiral distribution plate 5, and the outer end of the coal scraper 6 extends to the discharge port 101. A discharge box with upper and lower openings is added outside the discharge port 101, and a guide plate 102 extending outward is provided at the outer edge of the discharge port 101, so as to facilitate the coal discharged from the discharge port 101 to be transported to the horizontal conveyor below.

[0037] See also Figure 5 , Figure 6 The outer end of the spiral distribution plate 5 is fixedly connected to the inner wall of the coal distribution frame 1 through a plurality of embedded plates. The spiral distribution plate 5 is a spiral structure extending from the middle of the feeding disc 4 toward the discharge port 101. The spiral distribution plate 5, the coal scraper plate 6 and the feeding disc 4 form a distribution path for driving the coal to be transported toward the discharge port 101.

[0038] A fixedly installed spiral distribution plate 5 is added to the coal distribution frame 1, and the middle position of the spiral distribution plate 5 is connected with the bottom of the feeding sleeve 3. When the coal is downwardly discharged from the feeding sleeve 3, it falls into the middle position of the distribution path. During the continuous rotation of the feeding disc 4, it is used to guide the coal to be transported in an orderly manner from the middle of the feeding disc 4 to the discharge port 101 at the edge along the spiral distribution path, and control the coal to be concentratedly spirally transported from the inside to the outside along the set route, effectively preventing the coal from splashing and spreading to the inner wall of the coal distribution frame 1 during the offline rotation process, and preventing the occurrence of coal scattering and coal piling to a certain extent.

[0039] The coal scraper plate 6 is arranged obliquely outward along the extension direction of the outer end of the distribution path, and the inner end of the coal scraper plate 6 is rotatably mounted on the outer end wall of the spiral distribution plate 5 through a connecting shaft. A transmission frame 7 whose inner end is fixedly mounted on the coal scraper plate 6 is fixedly mounted on the coal distribution frame 1;

[0040] A driving motor is installed at the bottom end of the transmission frame 7, and a transmission chain structure connected between the driving shaft of the driving motor and the connecting shaft is installed inside the transmission frame 7, so that the scraper plate 6 can automatically rotate along the axial direction of the connecting shaft, change the closing position of the outer end of the scraper plate 6 relative to the discharge port 101, adjust the opening size of the discharge port 101, and adjust the rotation speed of the feeding disc 4 to meet different discharge requirements.

[0041] Embodiment 2: Based on Embodiment 1, this embodiment adds a dredging component extending into the feeding sleeve 3 at the upper end of the center of the feeding disc 4, and improves the internal structure of the feeding sleeve 3 to dredge the coal falling from the feeding sleeve 3. The specific contents include:

[0042] See also Figure 7 , Figure 8 A dredging component located inside the middle of the spiral feeding plate 5 is fixed at the axial center of the feeding disc 4, the upper end of the dredging component extends into the feeding sleeve 3, and a guide disc 11 adapted to the dredging component is fixedly installed inside the feeding sleeve 3, and a guide port 111 extending from top to bottom is opened on one side of the guide disc 11;

[0043] See also Figure 4 and Figure 8-Figure 10 The dredging assembly includes a conical material distribution column 8 fixed at the center of the feeding disc 4, the upper end of the conical material distribution column 8 extends to the bottom of the feeding sleeve 3 and is fixed with a dredging column 10 that penetrates the axis of the guide disc 11, and the dredging column 10 extends upward to the bottom of the coal bunker 2. The outer end wall of the conical material distribution column 8 is annularly distributed with a plurality of material-dispensing pieces 9 located below the guide disc 11. The conical material distribution column 8 is a conical structure that is narrow at the top and wide at the bottom.

[0044] The material-pickling piece 9 is a triangular structure with its long side positioned on the conical material-distributing column 8. A material-guide surface inclined downward from the side to the middle is also provided on the upper end surface of the material-distributing plate 11. A material-guide opening 111 is provided on the material-guide surface. The dredging assembly also includes a plurality of dredging shafts 13 annularly fixed on the dredging column 10 and inclined upward along the material-guide surface. A material-guide surface inclined downward from the outside to the inside is added inside the feeding sleeve 3. A material-guide opening 111 is provided on the material-guide surface. The opening of the material-guide opening 111 is reasonably designed according to actual needs. The material-guide opening 111 corresponds to the relatively wide material-dropping center formed by the conical material-distributing column 8 and the spiral material-distributing plate. The dredging shafts 13 and the material-pickling piece 9 arranged in groups are arranged in the upper and lower directions of the material-distributing plate 11.

[0045] When the conical distribution column 8 rotates with the feeding disc 4, the upper and lower distributed and synchronously rotating prying pieces 9 and dredging shafts 13 stir and dredge the coal at the upper and lower positions of the guide disc 11 to prevent the coal from being blocked at the guide port 111, and the conical distribution column 8 with a conical structure is used to disperse the fallen coal to avoid the fallen coal from accumulating in the middle of the feeding disc 4. The coal dispersed in the middle of the spiral distribution plate 5 is transported from the middle to the outside and along the distribution path to the discharge port 101 during the rotation of the feeding disc 4.

[0046] In addition, a coal scraper seat 12 is fixedly installed at the bottom of the feeding sleeve 3, which is located below the material guide plate 11 and avoids the material guide port 111. A semi-conical coal scraper groove is opened on the inner side of the coal scraper seat 12, which is in active contact with the upper end wall of the material stripping piece 9. The coal scraper seat 12 is arranged away from the material guide port 111. The addition of the coal scraper seat 12 with a semi-conical coal scraper groove is beneficial to scraping away the coal seam adhering to the material stripping piece 9.

[0047] In summary: a fixedly installed spiral distribution plate 5 is added inside the coal blending frame 1, and a dredging component located inside the middle of the spiral distribution plate 5 and extending to the inside of the feeding sleeve 3 is fixed at the axial position of the feeding disc 4. During the coal blending and feeding process, the dredging component rotates synchronously with the feeding disc 4, and the dredging shaft 13 and the material-pickling sheet 9 arranged in groups are distributed in the upper and lower directions of the guide disc 11, respectively used to stir and dredge the coal inside and outside the flow guide port 111, on the one hand, effectively preventing the coal from accumulating and clogging in the feeding sleeve 3, and on the other hand, effectively dispersing the coal falling from the guide disc 11, so that the coal is dispersed smoothly in the middle of the feeding disc 4;

[0048] During the circumferential rotation of the feeding disc 4, the fixedly installed spiral distribution plate 5 is used to guide the coal to be transported in an orderly manner from the middle of the feeding disc 4 to the discharge port 101 at the edge along the spiral distribution path, control the coal to be concentratedly transported from the inside to the outside in a spiral manner, reduce the diffusion range of the coal under high-speed centrifugal rotation, and prevent the occurrence of coal scattering and coal piling to a certain extent;

[0049] In addition, the scraper plate 6 is set to rotate, and the closing position of the outer end of the scraper plate 6 relative to the discharge port 101 is changed, so as to adjust the opening size of the discharge port 101, and coordinately adjust the rotation speed of the feeding disc 4 to meet different discharge requirements.

[0050] Here, it is also necessary to explain that the number of spiral turns of the spiral distribution plate 5 can be reasonably set according to the diameter of the feeding disc 4 and the average coal feed rate. After increasing the number of spiral turns of the spiral distribution plate 5, the width of the distribution path is reduced and the length of the distribution path is extended. Under the condition of a certain feeding amount, the conveying speed of the feeding disc 4 is accelerated, which has the effect of evenly distributing the coal to a certain extent and plays a role in force distribution, so as to prevent excessive coal feed rate from causing excessive feeding pressure on the spiral distribution plate 5 and the feeding disc 4 under centrifugal rotation.

[0051] The above are only preferred specific implementation modes of the present invention; however, the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A disc type coal blending and feeding system for preparing coking coal, comprising a disc feeder and a horizontal conveyor, wherein the disc feeder comprises a coal blending frame (1) on which a feeding disc (4) is rotatably driven and mounted, and a coal blending bin (2) with a feeding sleeve (3) at the bottom end is fixedly mounted on the coal blending frame (1), characterized in that: The inner wall of the coal distribution frame (1) is fixedly provided with a spiral distribution plate (5) whose bottom end is movably connected to the upper end surface of the feeding disc (4); the front end wall of the coal distribution frame (1) is provided with a discharge port (101) which is connected to an outer end of the spiral distribution plate (5) and is located above the end of the coal distribution bin (2); the outer end wall of the spiral distribution plate (5) is also rotatably provided with a coal scraper plate (6) whose outer end extends to the discharge port (101); the spiral distribution plate (5), the coal scraper plate (6) and the feeding disc (4) form a distribution path for driving the coal to be transported toward the discharge port (101); A dredging component located inside the middle of the spiral distribution plate (5) is fixed at the axial center of the feeding disc (4), the upper end of the dredging component extends into the feeding sleeve (3), and a material guide disc (11) adapted to the dredging component is fixedly installed inside the feeding sleeve (3), and a material guide opening (111) extending from top to bottom is provided on one side of the material guide disc (11).

2. A disc type coal blending and feeding system for coking coal preparation according to claim 1, characterized in that: The feeding disc (4) is a convex structure that is wide at the top and narrow at the bottom. A convex rotating groove is provided at the bottom of the coal distribution frame (1), and a sealing ring is fixedly embedded on the outer wall of the feeding disc (4) and is sealedly connected to the inner wall of the convex rotating groove.

3. A disc type coal blending and feeding system for coking coal preparation according to claim 1, characterized in that: The outer end of the spiral distribution plate (5) is fixedly connected to the inner wall of the coal distribution frame (1) via a plurality of embedded plates, and the spiral distribution plate (5) is a spiral structure extending from the middle of the feeding disc (4) toward one side of the discharge port (101).

4. A disc type coal blending and feeding system for coking coal preparation according to claim 3, characterized in that: The coal scraper plate (6) is arranged obliquely outwardly along the extension direction of the outer end of the distribution path, and the inner end of the coal scraper plate (6) is rotatably mounted on the outer end wall of the spiral distribution plate (5) via a connecting shaft.

5. A disc type coal blending and feeding system for coking coal preparation according to claim 1, characterized in that: The dredging assembly comprises a conical distribution column (8) fixed at the center of the feeding disc (4), the upper end of the conical distribution column (8) extending to the bottom of the feeding sleeve (3) and fixed with a dredging column (10) penetrating the axis of the guide disc (11), the dredging column (10) extending upward to the bottom of the coal distribution bin (2), and a plurality of material-prying pieces (9) located below the guide disc (11) are annularly distributed on the outer end wall of the conical distribution column (8).

6. A disc type coal blending and feeding system for coking coal preparation according to claim 5, characterized in that: The conical material distribution column (8) is a conical structure that is narrow at the top and wide at the bottom, and the material shifting piece (9) is a triangular structure with a long side positioned on the conical material distribution column (8).

7. A disc type coal blending and feeding system for coking coal preparation according to claim 6, characterized in that: The upper end surface of the material guide plate (11) is also provided with a material guide surface which is arranged downwardly and obliquely from the edge to the middle, and the material guide port (111) is provided on the material guide surface. The dredging component also includes a plurality of dredging shafts (13) which are annularly fixed on the dredging column (10) and arranged upwardly and obliquely along the material guide surface.

8. A disc type coal blending and feeding system for coking coal preparation according to claim 7, characterized in that: The inner bottom of the feeding sleeve (3) is also fixedly mounted with a coal scraper seat (12) located below the material guide plate (11) and away from the material guide opening (111), and the inner side of the coal scraper seat (12) is provided with a semi-conical coal scraper groove that is in active contact with the upper end wall of the material stripping piece (9).

Images