Ash reduction and desulfurization equipment for pneumatic coal separation

Abstract

The utility model discloses a kind of ash reduction desulfurization equipment for wind force coal separation, including wind force coal separator body, the top of wind force coal separator body is provided with feed hopper, the top of feed hopper is provided with sealing cover and the outer surface of sealing cover bottom is attached with the inner surface of feed hopper top, the bottom of feed hopper is fixedly installed with discharging mechanism;In the utility model, by setting discharging mechanism and the like structure.When the wind force coal separator body is operated, after coal is put into the feed hopper, synchronous starting motor drives transmission wheel to rotate, another transmission wheel and axle rod are rotated by crawler belt (axle rod rotates along the inside of cylinder and support column top end).When axle rod rotates, its outer surface overturning plate rotates along the inside of cylinder, and coal material falling into groove is transported to discharge pipe, and coal material falls into coal separator body under the action of gravity to participate in air separation.This discharging mechanism can reduce feeding fluctuation, and at the same time avoid direct communication between feeding channel and external environment, reduce coal material reverse overflow risk.

Description

Technical Field

[0001] This utility model relates to the field of wind-powered coal preparation technology, and more specifically, to a desulfurization and ash reduction device for wind-powered coal preparation. Background Technology

[0002] Pneumatic coal preparation is a dry coal preparation technology that separates coal from impurities (such as gangue) by utilizing the difference in density and settling velocity in an airflow. One of its core objectives is to reduce the ash and sulfur content of coal, thereby reducing pollutant emissions during combustion. Since the density of inorganic sulfur minerals such as pyrite in coal slime is much higher than that of coal, they can be effectively separated by the density difference in pneumatic separation. Under the action of the airflow, pyrite particles, due to their higher density, settle and are discharged with heavier materials such as gangue, thus achieving desulfurization.

[0003] A search revealed that CN222447311U discloses a vertical wind-powered coal preparation machine. The specification states that: when coal is fed into the vertical wind-powered coal preparation machine body through the feeding hopper, a rotating motor, in conjunction with a vibrating mechanism, drives a pair of first hammers to repeatedly strike the narrow opening area at the lower end of the feeding hopper body, causing vibration. This vibration loosens and causes the material to fall out of congestion, preventing blockages, ensuring smooth feeding, enhancing feeding efficiency, and avoiding impact on subsequent coal preparation progress.

[0004] However, in actual operation, this wind-powered coal preparation machine still has some shortcomings. Specifically, although the above-mentioned technical solution uses a vibration mechanism to achieve material conveying and employs a sealing plug to enclose the upper end of the feed hopper, effectively reducing material splashing, its mechanical impact vibration feeding method still has inherent defects—it cannot achieve precise dynamic adjustment of the feed rate. This lack of control precision leads to two typical operating conditions: when the feed rate is lower than the equipment's design processing limit, the airflow inside the sorting chamber becomes unloaded, resulting in a decrease in capacity utilization; while when the feed rate exceeds the equipment's processing limit, insufficient airflow velocity occurs, causing some coal to be incompletely sorted. This uncontrollable feed fluctuation not only disrupts the stability of the sorting process but also has a significant negative impact on the overall energy efficiency and production efficiency of the system. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a desulfurization and ash reduction equipment for wind-powered coal preparation, so as to solve the problem that some wind-powered coal preparation machines in the prior art use a knocking vibration feeding method, which makes it impossible to accurately control the feeding amount, resulting in wasted production capacity when the feeding is insufficient and incomplete separation when the feeding is excessive, which seriously affects the stability and separation efficiency of the equipment.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a wind-powered coal preparation ash reduction and desulfurization device, comprising...

[0007] The wind-powered coal preparation machine body has a feeding hopper on its top, a sealing cover on its top, and the outer surface of the bottom of the sealing cover is in contact with the inner surface of the top of the feeding hopper. A feeding mechanism is fixedly installed at the bottom of the feeding hopper.

[0008] The feeding mechanism includes a cylinder. The outer surface of the top of the cylinder is fixedly installed with the outer surface of the bottom of the feed hopper. A discharge pipe is fixedly installed on the outer surface of the bottom of the cylinder. A motor is fixedly installed on the upper surface of the left side of the cylinder. A tilting plate is rotatably installed on the inner surface of the cylinder. A shaft is fixedly installed in the middle of the tilting plate. Support columns are rotatably installed on the outer surfaces of both ends of the shaft, and are rotatably installed with the inner surfaces of the middle of the left and right sides of the cylinder. A transmission wheel is fixedly installed on the output end of the motor and the outer surface of the left end of the shaft. Tracks mesh with the two transmission wheels.

[0009] The outer surface of the bottom end of the discharge pipe is fixedly installed with the inner surface of the top of the air-powered coal preparation machine body. Both sides of the discharge pipe are equipped with striking devices, which are fixedly installed on the top of the air-powered coal preparation machine body and their upper surfaces are fixedly installed with the bottom of the support column.

[0010] The wind-powered coal preparation machine body has a dust bag on its right side, and an installation plate is fixedly installed on the outer surface of the top left side of the dust bag. Multiple insertion posts are fixedly installed on the right side of the wind-powered coal preparation machine body, and the outer surfaces of the multiple insertion posts are inserted into the inner surface of the installation plate. The installation plate is provided with a limit mechanism on its exterior.

[0011] The limiting mechanism includes a knob, a bidirectional lead screw fixedly mounted on the central surface of the knob, guide blocks rotatably mounted at both ends of the bidirectional lead screw, and the sides of the guide blocks fixedly mounted to the right side surface of the air-powered coal preparation machine body. A slider is slidably mounted on the outer surface of the two guide blocks, a U-shaped block is fixedly mounted on the surface of the slider near the knob, the inner surface of the middle of the U-shaped block is threadedly connected to the outer surface of the end of the bidirectional lead screw, an L-shaped plate is fixedly mounted on the side of the slider, multiple connecting rods are fixedly mounted on the surface of the L-shaped plate away from the mounting plate, and a horizontal plate is slidably sleeved on the outer surface of the multiple connecting rods, and the outer surface of the end of the horizontal plate is fixedly mounted to the surface of the guide block away from the knob. A spring is sleeved on the outside of the connecting rod, and the two ends of the spring are fixedly connected to the surfaces of the L-shaped plate and the horizontal plate that are close to each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In the above scheme, a feeding mechanism and other structures are incorporated. When the wind-powered coal preparation machine is running, after the coal is fed into the feed hopper, the motor simultaneously starts, driving the transmission wheel to rotate. This rotation, via the crawler, drives another transmission wheel and a shaft to rotate (the shaft rotates along the inner side of the cylinder and the top of the support column). As the shaft rotates, the tilting plate on its outer surface rotates along the inner side of the cylinder, conveying the coal falling into the groove to the discharge pipe. Under gravity, the coal falls into the coal preparation machine body to participate in air separation. This feeding mechanism reduces feeding fluctuations and prevents direct connection between the feed channel and the outside, reducing the risk of coal backflow.

[0014] In the above solution, a limiting mechanism and other structures are incorporated. When disassembling the dust bag, rotating the knob drives the bidirectional lead screw to rotate (the lead screw rotates along the inner sides of two adjacent guide blocks), causing the U-shaped blocks threaded at both ends of the lead screw to move away from each other. This pushes the slider to slide along the outer surface of the guide blocks, thereby causing the L-shaped plate to separate. After the L-shaped plate slides along the edge of the mounting plate until it detaches, the limiting mechanism on the upper and lower edges of the mounting plate is released, allowing the mounting plate and the connected dust bag to be removed from the right side of the coal preparation machine body. This structure simplifies the dust bag loading and unloading process, improving the convenience of bag replacement and the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the feed hopper, sealing cover, etc. of this utility model;

[0017] Figure 3 This is a schematic diagram of the feeding mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the mounting plate, insert post, and other structures of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting mechanism of this utility model.

[0020] [Figure Labels]

[0021] 1. Main body of the wind-powered coal preparation machine; 2. Feed hopper; 3. Sealing cover; 4. Discharge mechanism; 40. Cylinder; 41. Motor; 42. Transmission wheel; 43. Track; 44. Shaft; 45. Support column; 46. Tilting plate; 47. Discharge pipe; 5. Striking device; 6. Dust bag; 7. Mounting plate; 8. Insert column; 9. Limiting mechanism; 90. Knob; 91. Two-way lead screw; 92. U-shaped block; 93. Sliding block; 94. Guide block; 95. L-shaped plate; 96. Connecting rod; 97. Spring. Detailed Implementation

[0022] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0023] As attached Figure 1 To be continued Figure 5 An embodiment of this utility model provides a wind-powered coal preparation ash reduction and desulfurization device, including...

[0024] The wind-powered coal preparation machine body 1 has a feeding hopper 2 on its top. The top of the feeding hopper 2 is equipped with a sealing cover 3, and the outer surface of the bottom of the sealing cover 3 is in contact with the inner surface of the top of the feeding hopper 2. A feeding mechanism 4 is fixedly installed at the bottom of the feeding hopper 2.

[0025] The feeding mechanism 4 includes a cylinder 40. The outer surface of the top of the cylinder 40 is fixedly installed with the outer surface of the bottom of the feed hopper 2. A discharge pipe 47 is fixedly installed on the outer surface of the bottom of the cylinder 40. A motor 41 is fixedly installed on the upper surface of the left side of the cylinder 40. A tilting plate 46 is rotatably installed on the inner surface of the cylinder 40. A shaft 44 is fixedly installed in the middle of the tilting plate 46. Support columns 45 are rotatably installed on the outer surfaces of both ends of the shaft 44 and are rotatably installed with the inner surfaces of the middle of the left and right sides of the cylinder 40. A transmission wheel 42 is fixedly installed on the output end of the motor 41 and the outer surface of the left end of the shaft 44. Tracks 43 mesh with the outside of the two transmission wheels 42.

[0026] Among them, the outer surface of the bottom end of the discharge pipe 47 is fixedly installed with the inner surface of the top of the air-powered coal preparation machine body 1. Both sides of the discharge pipe 47 are provided with striking devices 5. The striking devices 5 are fixedly installed on the top of the air-powered coal preparation machine body 1, and their upper surfaces are fixedly installed with the bottom of the support column 45.

[0027] By setting the striking device 5, existing striking and vibrating mechanisms can be installed on both sides of the discharge pipe 47 to assist in striking and vibrating the outer wall of the discharge pipe 47 during the coal feeding process, so that the material inside can enter the interior of the wind-powered coal preparation machine body 1 more smoothly.

[0028] Among them, a dust bag 6 is provided on the right side of the wind power coal preparation machine body 1, and an installation plate 7 is fixedly installed on the outer surface of the top left side of the dust bag 6. Multiple insertion posts 8 are fixedly installed on the right side of the wind power coal preparation machine body 1, and the outer surface of the multiple insertion posts 8 is inserted into the inner surface of the installation plate 7. A limit mechanism 9 is provided on the outside of the installation plate 7.

[0029] By setting the insertion posts 8, multiple insertion posts 8 are fixedly installed on the right side of the wind power coal preparation machine body 1. They are mainly used to align the installation plate 7 with the insertion posts 8 and insert it when installing the installation plate 7 and dust bag 6. The insertion is then limited by the externally installed limiting mechanism 9, which facilitates the accuracy of the installation of the installation plate 7 and other structures.

[0030] The limiting mechanism 9 includes a knob 90, a bidirectional lead screw 91 fixedly mounted on the middle surface of the knob 90, guide blocks 94 rotatably mounted on both ends of the bidirectional lead screw 91, and the side of the guide block 94 fixedly mounted on the right side surface of the wind-powered coal preparation machine body 1. A slider 93 is slidably mounted on the outer surface of the two guide blocks 94. A U-shaped block 92 is fixedly mounted on the surface of the slider 93 near the knob 90. The inner surface of the middle part of the U-shaped block 92 is threadedly connected to the outer surface of the end of the bidirectional lead screw 91. An L-shaped plate 95 is fixedly mounted on the side of the slider 93. Multiple connecting rods 96 are fixedly mounted on the surface of the L-shaped plate 95 away from the mounting plate 7. A horizontal plate is slidably sleeved on the outer surface of the multiple connecting rods 96. The outer surface of the end of the horizontal plate is fixedly mounted on the surface of the guide block 94 away from the knob 90. A spring 97 is sleeved on the outside of the connecting rod 96. The two ends of the spring 97 are fixedly connected to the surfaces of the L-shaped plate 95 and the horizontal plate that are close to each other.

[0031] By setting up a structure such as a connecting rod 96, when the L-shaped plate 95 moves up and down, the connecting rod 96 installed on the side away from the mounting plate 7 will slide up and down along the inner surface of the set horizontal plate, which helps to stabilize the movement of the L-shaped plate 95. In addition, the spring 97 installed outside the connecting rod 96 can assist the L-shaped plate 95 in pressing against the outer edge of the mounting plate 7 for a limiting operation.

[0032] The working process of this utility model is as follows:

[0033] When performing wind-powered coal preparation through the wind-powered coal preparation machine body 1, coal can be fed into the inside of the feed hopper 2. After the wind-powered coal preparation machine body 1 starts operating, the synchronous control motor 41 starts, driving the transmission wheel 42 connected to the output end of the motor 41 to rotate. The transmission wheel 42 connected to the transmission wheel 42 is rotated by the track 43, which drives the inner surfaces of the two sides of the cylindrical 40 and the inner surfaces of the top of the support column 45 to rotate. Through the rotation of the shaft 44, the tilting plate 46 fixedly installed on its outer surface can be driven to rotate along the inner surface of the cylindrical 40. The coal falling from the inside of the feed hopper 2 into the groove of the tilting plate 46 will be driven by the rotating tilting plate 46 to the discharge pipe 47. Under the action of gravity, it will fall into the inside of the wind-powered coal preparation machine body 1 to participate in the wind-powered coal preparation process. Thus, by guiding and quantitatively feeding the coal through the feeding mechanism 4, the fluctuation of the feeding can be reduced, and the direct connection between the feeding channel and the outside can be avoided, reducing the reverse overflow of the coal during wind separation.

[0034] When disassembling the dust bag 6, the double-sided lead screw 91 fixed in the middle can be rotated by rotating the knob 90. The double-sided lead screw 91 will rotate along the inner surface of the two guide blocks 94 that are rotatably mounted close to each other. Through the rotation of the double-sided lead screw 91, the U-shaped blocks 92 connected at both ends can be driven away from each other. The U-shaped blocks 92 will push the connected slider 93 to slide along the outer surface of the guide block 94 and move away from each other. This will further drive the connected L-shaped plate 95 to move away from each other. The L-shaped plate 95 will slide along the outer edge of the mounting plate 7 to separate from the mounting plate 7, thereby unlocking the limit on the upper and lower edges of the mounting plate 7. This allows the mounting plate 7 to drive the connected dust bag 6 to be disassembled from the right side of the wind power coal preparation machine body 1, which facilitates the installation and disassembly of the dust bag 6, improves the convenience of bag replacement, and improves the practicality of the device to a certain extent.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust removal and desulfurization equipment for pneumatic coal separation, characterized in that, include The wind-powered coal preparation machine body (1) is provided with a feeding hopper (2) at the top of the wind-powered coal preparation machine body (1). A sealing cover (3) is provided at the top of the feeding hopper (2) and the outer surface of the bottom of the sealing cover (3) is in contact with the inner surface of the top of the feeding hopper (2). A feeding mechanism (4) is fixedly installed at the bottom of the feeding hopper (2). The feeding mechanism (4) includes a cylinder (40). The outer surface of the top of the cylinder (40) is fixedly installed with the outer surface of the bottom of the feed hopper (2). A discharge pipe (47) is fixedly installed on the outer surface of the bottom of the cylinder (40). A motor (41) is fixedly installed on the upper surface of the left side of the cylinder (40). A tilting plate (46) is rotatably installed on the inner surface of the cylinder (40). A shaft (44) is fixedly installed in the middle of the tilting plate (46). Support columns (45) are rotatably installed on the outer surfaces of both ends of the shaft (44) and are rotatably installed with the inner surfaces of the middle of the left and right sides of the cylinder (40). A transmission wheel (42) is fixedly installed on the outer surface of the output end of the motor (41) and the left end of the shaft (44). A track (43) meshes with the outside of the two transmission wheels (42).

2. The wind-powered coal preparation ash reduction and desulfurization equipment according to claim 1, characterized in that, The outer surface of the bottom end of the discharge pipe (47) is fixedly installed on the inner surface of the top of the air-powered coal preparation machine body (1). Both sides of the discharge pipe (47) are provided with striking devices (5). The striking devices (5) are fixedly installed on the top of the air-powered coal preparation machine body (1), and their upper surfaces are fixedly installed on the bottom of the support column (45).

3. The ash reduction and desulfurization equipment for coal preparation by wind power according to claim 1, characterized in that, A dust bag (6) is provided on the right side of the wind power coal preparation machine body (1). An installation plate (7) is fixedly installed on the outer surface of the top left side of the dust bag (6). Multiple insertion posts (8) are fixedly installed on the right side of the wind power coal preparation machine body (1), and the outer surface of the multiple insertion posts (8) is inserted into the inner surface of the installation plate (7). A limit mechanism (9) is provided on the outside of the installation plate (7).

4. The ash reduction and desulfurization equipment for coal preparation by wind power according to claim 3, characterized in that, The limiting mechanism (9) includes a knob (90), on which a bidirectional lead screw (91) is fixedly mounted. Guide blocks (94) are rotatably mounted at both ends of the bidirectional lead screw (91), and the sides of the guide blocks (94) are fixedly mounted to the right side surface of the air-powered coal preparation machine body (1). Slider blocks (93) are slidably mounted on the outer surfaces of the two guide blocks (94). A U-shaped block (92) is fixedly mounted on the surface of the slider (93) near the knob (90). The inner surface of the middle part of the U-shaped block (92) is fixedly mounted to the bidirectional lead screw (91). 91) The outer surface of the end is threaded. An L-shaped plate (95) is fixedly installed on the side of the slider (93). Multiple connecting rods (96) are fixedly installed on the surface of the L-shaped plate (95) away from the mounting plate (7). A horizontal plate is slidably sleeved on the outer surface of the multiple connecting rods (96). The outer surface of the horizontal plate end is fixedly installed on the surface of the guide block (94) away from the knob (90). A spring (97) is sleeved on the outside of the connecting rod (96). The two ends of the spring (97) are fixedly connected to the surfaces of the L-shaped plate (95) and the horizontal plate that are close to each other.

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