Coking coal screening device

Abstract

The utility model discloses a coking coal screening device, which relates to the technical field of coking coal screening, and comprises a shell, a support ring is horizontally arranged in the shell, a screening cylinder is rotatably arranged on the support ring, a feeding hole is formed in the upper part of the screening cylinder, a discharging hole is formed in the lower part of the screening cylinder, an upper screening plate is arranged in the screening cylinder, and a lower screening plate is arranged in the screening cylinder. A lower screening plate is arranged on the lower portion of the upper screening plate, the upper screening plate is fixedly connected with the inner wall of the screening cylinder, the lower screening plate is slidably installed in a sliding groove in the inner wall of the screening cylinder, and a driving mechanism is arranged below the supporting ring and connected with the outer wall of the screening cylinder in a matched mode so that the driving mechanism can drive the screening cylinder to rotate in a reciprocating mode. The manual driving mechanism is arranged on the feeding port, and when blockage occurs, the manual driving mechanism drives the lower screening plate and the upper screening plate to rotate relatively, so that the hole distance of the screening holes is increased, and blocked coal briquettes can be discharged out of the screening cylinder. The coal briquette collecting device solves the problem that time and labor are wasted when residual coal briquettes left after screening are manually collected.

Description

Technical Field

[0001] The utility model relates to the technical field of coking coal screening, in particular to a coking coal screening device. Background Art

[0002] Coking coal is a kind of bituminous coal. Generally, bituminous coal with certain caking property that can coke under the coking conditions of chamber coke oven and is used as the raw material coal for producing coke of certain quality is collectively called coking coal.

[0003] Before coking coal is used, screening operation needs to be carried out. However, the current coking coal screening equipment has poor screening effect and cannot meet the process requirements. The existing screening equipment is prone to blockage when screening coking coal, and manual cleaning of the screen mesh is required, which is time-consuming and laborious. Content of the Utility Model

[0004] In view of the above technical problems, the utility model provides a coking coal screening device.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A coking coal screening device, characterized by comprising: a housing, a support ring is horizontally arranged in the housing, a screening cylinder is rotatably arranged on the support ring, the upper part of the screening cylinder is a feed inlet, the lower part is a discharge outlet, an upper screen plate is arranged in the screening cylinder, a lower screen plate is arranged below the upper screen plate, the upper screen plate is fixedly connected with the inner wall of the screening cylinder, the lower screen plate is slidably installed in a chute on the inner wall of the screening cylinder, a driving mechanism is arranged below the support ring, and the driving mechanism is in cooperative connection with the outer wall of the screening cylinder, so that the driving mechanism can drive the screening cylinder to rotate reciprocally. A manual driving mechanism is arranged on the feed inlet, and the driving end of the manual driving mechanism is connected with the lower screen plate, so that when blockage occurs, the manual driving mechanism drives the lower screen plate to rotate relative to the upper screen plate, so that the hole pitch of the screen holes becomes larger, and the blocked coal blocks can be discharged from the screening cylinder.

[0007] Both the upper screen plate and the lower screen plate are in the shape of a bamboo hat. A first screen mesh is arranged around the lower end of the upper screen plate, a second screen mesh is arranged around the lower end of the lower screen plate, and the hole pitch of the second screen mesh is larger than that of the first screen mesh.

[0008] The manual driving mechanism includes a runner, a sleeve, an adjusting rod, a rotating rod, a bevel gear set, a collar, and a limiting ring. The sleeve is horizontally arranged on the feed inlet, the adjusting rod is arranged inside the sleeve, a runner is arranged at one end of the adjusting rod, and the other end is arranged at the top of the rotating rod through the bevel gear set. The bottom of the rotating rod is rotatably installed with a collar, the collar is connected to the upper part of the lower screen plate, and the boss of the collar is clamped with the groove of the limiting ring. The limiting ring is connected to the upper part of the upper screen plate.

[0009] The driving mechanism includes a toothed ring, a first half gear, a second half gear, a first gear, a second gear, a driving gear, a driven gear, a first toothed belt, a second toothed belt, a third toothed belt, and a driving motor. The toothed ring is fixedly connected to the outer wall of the screening cylinder. The first half gear and the second half gear are installed on the support ring, and the first half gear and the second half gear are meshed with the toothed ring. A first gear and a second gear are coaxially installed below the first half gear and the second half gear respectively. The driving gear and the driven gear are arranged below the support ring. The driving gear is fitted on the main shaft of the driving motor. The driving gear is connected to the first gear through the first toothed belt, the driving gear is connected to the driven gear through the second toothed belt, and the driven gear is connected to the second gear through the third toothed belt.

[0010] The beneficial effects of the present utility model are as follows:

[0011] (1) When the present utility model is in use, coal lumps are injected into the screening cylinder from the feed inlet. The driving motor drives the driving gear to rotate, and the power is transmitted to the two half gears through the toothed belt, thereby driving the screening cylinder to rotate reciprocally to screen the coking coal. The screened coal lumps are discharged from the discharge outlet, solving the problem that the traditional method of manually lifting the sieve mesh and shaking it to screen coking coal is time-consuming and laborious.

[0012] (2) When the present utility model is in use, both the upper sieve plate and the lower sieve plate are in the shape of a bamboo hat. A first sieve mesh is provided around the lower end of the upper sieve plate, and a second sieve mesh is provided around the lower end of the lower sieve plate. The coal lumps are uniformly concentrated on the sieve mesh for screening.

[0013] (3) When the present utility model is in use, when the coking coal clogs the sieve mesh, manually rotate the runner. The power of the adjusting rod is transmitted to the rotating rod through the bevel gear, and the rotating rod drives the second sieve mesh to rotate so that the mesh holes of the first sieve mesh and the second sieve mesh coincide and the coking coal falls, thereby dredging the blockage.

[0014] (4) When the present utility model is in use, the half gear is meshed with the toothed ring. When the driving motor works, the power is transmitted to the half gear through the toothed belt, the driven gear, the first gear, and the second gear. When the half gear rotates, it intermittently meshes with the toothed ring, causing the toothed ring to drive the screening cylinder to rotate reciprocally to complete the screening of the coking coal. Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0016] Figure 1 is a schematic diagram of the present utility model;

[0017] Figure 2 is an internal schematic diagram of the present utility model;

[0018] Figure 3 is a schematic diagram of a part of the driving mechanism of the present utility model;

[0019] Figure 4 This is a schematic longitudinal sectional view of the present utility model;

[0020] Figure 5 This is a schematic bottom view of the driving mechanism of the present utility model;

[0021] Figure 6 This is a schematic view of the coaxial half-gear and gear of the present utility model;

[0022] Figure 7 This is a schematic view of a part of the driving mechanism of the present utility model;

[0023] Figure 8 This is a schematic view of the tooth belt connection relationship of the present utility model;

[0024] Figure 9 This is a schematic view of the separation of the sieve plate and sieve mesh of the present utility model;

[0025] Figure 10 This is a schematic view of the connection part of the adjusting rod and the rotating rod of the present utility model;

[0026] Figure 11 This is a schematic view of the separation of the collar and the limit ring of the present utility model.

[0027] Reference numerals: housing 1, support ring 2, screening cylinder 3, tooth ring 4, first half-gear 5, second half-gear 6, first gear 7, second gear 8, driving gear 9, driven gear 10, first tooth belt 11, second tooth belt 12, third tooth belt 13, driving motor 14, feed inlet 15, runner 16, sleeve 17, adjusting rod 18, rotating rod 19, bevel gear 20, bevel gear 20-1, upper sieve plate 21, first sieve mesh 22, lower sieve plate 23, second sieve mesh 24, collar 25, limit ring 26, discharge port 27. Detailed implementation manners

[0028] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0029] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 9As shown in the figure, a coking coal screening device is characterized in that it includes a housing 1. A support ring 2 is horizontally arranged inside the housing 1. A screening cylinder 3 is rotatably arranged on the support ring 2. The upper part of the screening cylinder 3 is a feed inlet 15, and the lower part is a discharge outlet 27. An upper sieve plate 21 is arranged inside the screening cylinder 3, and a lower sieve plate 23 is arranged below the upper sieve plate 21. The upper sieve plate 21 is fixedly connected to the inner wall of the screening cylinder 3, and the lower sieve plate 23 is slidably installed in a chute on the inner wall of the screening cylinder 3. A driving mechanism is arranged below the support ring 2, and the driving mechanism is cooperatively connected to the outer wall of the screening cylinder 3, so that the driving mechanism can drive the screening cylinder 3 to rotate reciprocally. A manual driving mechanism is arranged on the feed inlet 15, and the driving end of the manual driving mechanism is connected to the lower sieve plate 23. When a blockage occurs, the manual driving mechanism drives the lower sieve plate 23 to rotate relative to the upper sieve plate 21, so that the hole pitch of the sieve holes becomes larger, and the blocked coal blocks can be discharged from the screening cylinder 3.

[0030] As Figure 4 , Figure 9 shown in the figure, both the upper sieve plate 21 and the lower sieve plate 23 are in the shape of a bamboo hat. A first screen 22 is provided around the lower end of the upper sieve plate 21, and a second screen 24 is provided around the lower end of the lower sieve plate 23, and the hole pitch of the second screen 24 is larger than that of the first screen 22.

[0031] As Figure 4 , Figure 10 , Figure 11 shown in the figure, the manual driving mechanism includes a rotating wheel 16, a sleeve 17, an adjusting rod 18, a rotating rod 19, a bevel gear set 20, a collar 25, and a limiting ring 26. The sleeve 17 is horizontally arranged on the feed inlet 15. The adjusting rod 18 is arranged inside the sleeve 17. One end of the adjusting rod 18 is provided with the rotating wheel 16, and the other end is arranged at the top of the rotating rod 19 through the bevel gear set 20. The bottom of the rotating rod 19 is rotatably installed with the collar 25. The collar 25 is connected to the upper part of the lower sieve plate 23. The boss of the collar 25 is clamped with the groove of the limiting ring 26, and the limiting ring 26 is connected to the upper part of the upper sieve plate 21.

[0032] As Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8As shown in the figure, the driving mechanism includes a toothed ring 4, a first half gear 5, a second half gear 6, a first gear 7, a second gear 8, a driving gear 9, a driven gear 10, a first toothed belt 11, a second toothed belt 12, a third toothed belt 13, and a driving motor 14. The toothed ring 4 is fixedly connected to the outer wall of the screening cylinder 3. The first half gear 5 and the second half gear 6 are installed on the support ring 2, and the first half gear 5 and the second half gear 6 are meshed with the toothed ring 4. A first gear 7 and a second gear 8 are coaxially installed below the first half gear 5 and the second half gear 6 respectively. The driving gear 9 and the driven gear 10 are arranged below the support ring 2. The driving gear 9 is fitted on the main shaft of the driving motor 14. The driving gear 9 is connected to the first gear 7 through the first toothed belt 11. The driving gear 9 is connected to the driven gear 10 through the second toothed belt 12. The driven gear 10 is connected to the second gear 8 through the third toothed belt 13.

[0033] When the present utility model is in use, coal lumps are injected into the screening cylinder 3 from the feed inlet 15. The coking coal falls onto the screen along the bell-shaped sieve plate. The driving motor 14 drives the driving gear 9 to rotate. The power is transmitted to the first gear 7 through the first toothed belt 11. At the same time, the power is transmitted from the second toothed belt 12 through the driven gear 10 and then to the second gear 8 through the third toothed belt 13. The first gear 7 and the second gear 8 drive the coaxially arranged first half gear 5 and the second half gear 6 to rotate, so that the toothed ring 4 drives the screening cylinder 3 to rotate reciprocally. The screening cylinder 3 screens the coal lumps. The screened coal lumps are discharged from the discharge outlet 27. When the screen is blocked, at this time, the rotating wheel 16 is rotated, the adjusting rod 17 rotates, and the power is transmitted to the rotating rod 19 through the bevel gear 20 and the bevel gear 20-1. The rotating rod 19 drives the lower sieve plate 23 to rotate. The sieve holes of the lower sieve plate 23 coincide with the sieve holes of the upper sieve plate 21. At this time, the hole pitch between the sieve holes of the lower sieve plate 23 and the upper sieve plate 21 becomes larger, and the blocked coal lumps can be discharged from the screening cylinder 3.

[0034] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modification examples falling within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A coking coal screening device, characterized in that, Comprising: A housing (1), inside which a support ring (2) is horizontally arranged. A screening cylinder (3) is rotatably arranged on the support ring (2). The upper part of the screening cylinder (3) is a feed inlet (15), and the lower part is a discharge outlet (27). An upper sieve plate (21) is arranged inside the screening cylinder (3), and a lower sieve plate (23) is arranged below the upper sieve plate (21). The upper sieve plate (21) is fixedly connected to the inner wall of the screening cylinder (3), and the lower sieve plate (23) is slidably installed in a chute on the inner wall of the screening cylinder (3). A driving mechanism is arranged below the support ring (2), and the driving mechanism is cooperatively connected to the outer wall of the screening cylinder (3) so that the driving mechanism can drive the screening cylinder (3) to rotate reciprocally. A manual driving mechanism is arranged on the feed inlet (15), and the driving end of the manual driving mechanism is connected to the lower sieve plate (23). When a blockage occurs, the manual driving mechanism drives the lower sieve plate (23) to rotate relative to the upper sieve plate (21), so that the hole pitch of the sieve holes becomes larger, and the blocked coal blocks can be discharged from the screening cylinder (3).

2. The coking coal screening device according to claim 1, characterized in that: Both the upper sieve plate (21) and the lower sieve plate (23) are in the shape of a bamboo hat. A first sieve mesh (22) is arranged around the lower end of the upper sieve plate (21), and a second sieve mesh (24) is arranged around the lower end of the lower sieve plate (23), and the hole pitch of the second sieve mesh (24) is larger than that of the first sieve mesh (22).

3. The coking coal screening device according to claim 2, characterized in that: The manual driving mechanism includes a rotating wheel (16), a sleeve (17), an adjusting rod (18), a rotating rod (19), a bevel gear set (20), a collar (25), and a limiting ring (26). The sleeve (17) is horizontally arranged on the feed inlet (15). The adjusting rod (18) is arranged inside the sleeve (17). One end of the adjusting rod (18) is provided with the rotating wheel (16), and the other end is arranged at the top of the rotating rod (19) through the bevel gear set (20). The bottom of the rotating rod (19) is rotatably installed with the collar (25). The collar (25) is connected to the upper part of the lower sieve plate (23). The boss of the collar (25) is clamped with the groove of the limiting ring (26). The limiting ring (26) is connected to the upper part of the upper sieve plate (21).

4. A coking coal screening device according to claim 1, characterized in that: The driving mechanism includes a toothed ring (4), a first half gear (5), a second half gear (6), a first gear (7), a second gear (8), a driving gear (9), a driven gear (10), a first toothed belt (11), a second toothed belt (12), a third toothed belt (13), and a driving motor (14). The toothed ring (4) is fixedly connected to the outer wall of the screening cylinder (3). The first half gear (5) and the second half gear (6) are installed on the support ring (2), and the first half gear (5) and the second half gear (6) are meshed with the toothed ring (4). A first gear (7) and a second gear (8) are coaxially installed below the first half gear (5) and the second half gear (6) respectively. The driving gear (9) and the driven gear (10) are arranged below the support ring (2). The driving gear (9) is fitted and installed on the main shaft of the driving motor (14). The driving gear (9) is connected to the first gear (7) through the first toothed belt (11). The driving gear (9) is connected to the driven gear (10) through the second toothed belt (12). The driven gear (10) is connected to the second gear (8) through the third toothed belt (13).

Images