Screening machine for coal production and processing

Abstract

The utility model discloses a screening machine for coal production and processing. The screening machine comprises a supporting seat; the screening part is arranged at the top of the supporting seat, the screening part comprises a screen which is obliquely arranged at the top of the supporting seat, the screen comprises two driving pipes, a plurality of screening rods are fixedly connected between the two driving pipes at equal intervals, and a material leakage space is formed between every two adjacent screening rods; the screening device has the advantages that through the cylindrical screen cloth defined by the obliquely-arranged screening rods and the rotary screening action driven by the driving part, large materials roll towards one end under the combined action of the gravity action and the rotary force, the screening effect is improved, the screening effect is improved, and the screening efficiency is improved. Small materials fall down through gaps between the screening rods; dust generated in the screening process is effectively reduced, the working environment is improved, meanwhile, the environment-friendly requirement is met, the spraying pipe is designed to be of a Y-shaped structure, reciprocating swinging is achieved through the driving rack and the driving gear, and spraying uniformity is ensured.

Description

Technical Field

[0001] This utility model relates to the field of coal production technology, specifically to a screening machine for coal production and processing. Background Technology

[0002] Coal production and processing refers to the full and effective utilization of mined coal and its associated minerals as energy and raw materials. The coal production and processing process requires various equipment, such as screening equipment, crushers, jigs, heavy media separation equipment, flotation machines, coal slurry water treatment equipment, dewatering equipment, and drying equipment.

[0003] Currently, coal screening is mostly done using vibrating screens. The vibration structure of these screens makes the equipment components prone to damage. The material is conveyed and separated under vibration, which makes continuous and rapid conveying and separation impossible, and the efficiency needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a screening machine for coal production and processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening machine for coal production and processing, comprising:

[0006] Support base;

[0007] The screening section is located on top of the support base. The screening section includes a screen that is inclined on top of the support base. The screen includes two drive tubes. Multiple screening rods are fixedly connected at equal intervals between the two drive tubes. A material leakage space is provided between two adjacent screening rods.

[0008] A drive unit is located outside the screen and includes a support wheel for driving and supporting the drive tube.

[0009] A spray pipe is placed on the outside of the screen and is used to reduce dust on the screen and the surrounding area.

[0010] Preferably, two support frames are fixedly connected to the top of the support base at both ends, and a drive shaft is rotatably connected between the two support frames. A support wheel is rotatably connected to the middle of the support frame, and the drive shaft is fixedly connected to the support wheel.

[0011] Preferably, the drive tube has a limiting groove in the middle, and the support wheel is engaged in the corresponding limiting groove and is in frictional connection with the limiting groove.

[0012] Preferably, a motor is fixedly connected to the outer side of one of the support frames, and the output end of the motor is fixedly connected to the drive shaft.

[0013] Preferably, a guide plate is fixed to the outer side of the support frame, a discharge conveyor belt is fixed to the top of the support base and below the guide plate, a feed hopper is fixed to one side of the support frame, and the bottom of the feed hopper is inserted into one end of the guide plate located above.

[0014] Preferably, the spray pipe has a Y-shaped structure, and the bottom of the spray pipe is connected to the water source via a rotary joint.

[0015] Preferably, a drive rack is slidably connected to the outer side of the guide plate, a drive gear is meshed with the outer side of the drive rack, the drive gear is fixedly sleeved in the middle of the spray pipe, and an electric telescopic rod for driving the drive rack to slide is fixedly connected to the outer side of the guide plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: the cylindrical screen formed by the inclined screening rods, and the rotating screening action driven by the drive unit, cause large pieces of material to roll to one end under the combined action of gravity and rotational force, while small pieces of material fall through the gaps between the screening rods; this not only improves screening efficiency but also ensures the accuracy of screening results; the screening machine is equipped with a spray pipe for spraying water and dust suppression on the screen and its surroundings; this effectively reduces the dust generated during the screening process, improves the working environment, and also meets environmental protection requirements. The spray pipe is designed with a Y-shaped structure and achieves reciprocating oscillation through a drive rack and drive gear, ensuring the uniformity of spraying. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the feed funnel of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the screening rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the discharge conveyor belt of this utility model;

[0021] Figure 5 This is an enlarged view of section A of this utility model.

[0022] In the diagram: 1. Support base; 2. Support frame; 3. Support wheel; 4. Drive shaft; 5. Motor; 6. Drive pipe; 7. Screening rod; 8. Guide plate; 9. Feed hopper; 10. Discharge conveyor belt; 11. Spray pipe; 12. Electric telescopic rod; 13. Drive gear; 14. Drive rack; 15. Limiting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 , 2 As shown in Figures 3, 4, and 5, this utility model provides a technical solution: a screening machine for coal production and processing, comprising: a support base 1; a screening section placed on top of the support base 1, the screening section including a screen inclinedly placed on top of the support base 1, the screen having a cylindrical structure with the feed end higher than the discharge end, the screen including two drive pipes 6, multiple screening rods 7 being fixedly connected at equal intervals between the two drive pipes 6, and a material leakage space provided between two adjacent screening rods 7; a drive unit placed on the outside of the screen, the drive unit including a support wheel 3 for driving and supporting the drive pipes 6; and a spray pipe 11 rotatably installed on the outside of the screen for dust suppression of the screen and the screening periphery.

[0025] It should be noted that this utility model is equipped with a controller and a corresponding operation panel. The drive unit drives the drive tube 6 to rotate, and the drive tube 6 drives the screening rod 7 to rotate. Coal enters the cylinder formed by the screening rod 7 from the higher end. During the rotation, large pieces of material slide along the screening rod 7 to one end, and small pieces of coal enter the lower part through the gaps between the screening rods 7. During this process, the spray pipe 11 sprays water to the inside and around the screen formed by the screening rod 7 to reduce dust and prevent excessive dust.

[0026] Please see Figure 1 , 2 As shown in Figure 4, two support frames 2 are fixedly connected to the top two ends of the support base 1. A drive shaft 4 is rotatably connected between the two support frames 2. A support wheel 3 is rotatably connected to the middle of the support frame 2. The drive shaft 4 is fixedly connected to the support wheel 3. A limiting groove 15 is provided in the middle of the drive tube 6. The support wheel 3 is stuck in the corresponding limiting groove 15 and is in frictional connection with the limiting groove 15. A motor 5 is fixedly connected to the outer side of one of the support frames 2. The output end of the motor 5 is fixedly connected to the drive shaft 4.

[0027] It should be noted that the support frames 2 at both ends of this utility model are at different heights, which is used to achieve the inclined setting of the screening rod 7, so that large pieces of material roll to one end under the action of gravity, and small pieces of material fall down along the gap between the screening rods 7 during the rolling process. When driven, the motor 5 drives the support wheel 3 to rotate. Under the action of friction, the support wheel 3 drives the drive tube 6 to roll, and the drive tube 6 drives the screening rod 7 to rotate around the center of the drive tube 6, thereby performing rotary screening of the material.

[0028] Please see Figure 1 , 4 As shown in Figure 5, a guide plate 8 is fixedly connected to the outer side of the support frame 2, and a discharge conveyor belt 10 is fixedly connected to the top of the support base 1 and below the guide plate 8. A feed hopper 9 is fixedly connected to one side of the support frame 2, and the bottom of the feed hopper 9 is inserted into one end of the guide plate 8 located above.

[0029] It should be noted that after screening, the small materials enter the top of the discharge conveyor belt 10 under the guidance of the guide plate 8. The discharge conveyor belt 10 transports the screened materials in the direction of feeding to prevent the screened materials from colliding.

[0030] Please see Figure 1 , 2 As shown in Figure 4, the spray pipe 11 has a Y-shaped structure, and the bottom of the spray pipe 11 is connected to the water source through a rotary joint. The outer side of the guide plate 8 is slidably connected to the drive rack 14, and the outer side of the drive rack 14 is meshed with the drive gear 13. The drive gear 13 is fixedly sleeved in the middle of the spray pipe 11, and the outer side of the guide plate 8 is fixedly connected to an electric telescopic rod 12 for driving the drive rack 14 to slide.

[0031] It should be noted that this utility model is equipped with a timer and limit switches. When the timer is in operation, it provides a time signal after a certain interval. The controller triggers the electric push rod to start according to the set time interval. The output end of the electric telescopic rod 12 drives the drive rack 14 to slide through the metal plate. The drive rack 14 drives the drive gear 13 to rotate. The drive gear 13 drives the spray pipe 11 to rotate. There are two limit switches located on both sides of the metal plate. In this way, the two limit switches and the controller drive the drive rack 14 to reciprocate, thereby controlling the reciprocating swing of the spray pipe 11 and achieving uniform spraying.

[0032] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0033] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening machine for coal production and processing, characterized in that: include: Support base (1); The screening section is located on the top of the support base (1). The screening section includes a screen that is inclined on the top of the support base (1). The screen includes two drive tubes (6). Multiple screening rods (7) are fixedly connected at equal intervals between the two drive tubes (6). A material leakage space is provided between two adjacent screening rods (7). The drive unit is located outside the screen and includes a support wheel (3) for driving and supporting the drive tube (6). Spray pipe (11) is placed on the outside of the screen and is used to reduce dust on the screen and the surrounding area of ​​the screen.

2. The screening machine for coal production and processing according to claim 1, characterized in that: Two support frames (2) are fixedly connected to the top two ends of the support base (1). A drive shaft (4) is rotatably connected between the two support frames (2). A support wheel (3) is rotatably connected to the middle of the support frame (2). The drive shaft (4) is fixedly connected to the support wheel (3).

3. A screening machine for coal production and processing according to claim 2, characterized in that: The drive tube (6) has a limiting groove (15) in the middle, and the support wheel (3) is stuck in the corresponding limiting groove (15) and is rubbed against the limiting groove (15).

4. A screening machine for coal production and processing according to claim 3, characterized in that: One of the support frames (2) has a motor (5) fixedly connected to its outer side, and the output end of the motor (5) is fixedly connected to the transmission shaft (4).

5. A screening machine for coal production and processing according to claim 4, characterized in that: A guide plate (8) is fixed to the outside of the support frame (2), and a discharge conveyor belt (10) is fixed to the top of the support base (1) and below the guide plate (8). A feed hopper (9) is fixed to one side of the support frame (2), and the bottom of the feed hopper (9) is inserted into one end of the guide plate (8) located above.

6. A screening machine for coal production and processing according to claim 5, characterized in that: The spray pipe (11) has a Y-shaped structure, and the bottom of the spray pipe (11) is connected to the water source through a rotary joint.

7. A screening machine for coal production and processing according to claim 6, characterized in that: A drive rack (14) is slidably connected to the outer side of the guide plate (8), and a drive gear (13) is meshed with the outer side of the drive rack (14). The drive gear (13) is fixedly sleeved in the middle of the spray pipe (11), and an electric telescopic rod (12) for driving the drive rack (14) to slide is fixedly connected to the outer side of the guide plate (8).

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