Efficient coal crushing and screening all-in-one machine

Abstract

The invention provides an efficient coal crushing and screening all-in-one machine which is characterized by comprising a shell, and a crushing mechanism, a conveying mechanism, a screening frame, a vibrating mechanism and a cleaning mechanism which are arranged in the shell, a hopper is arranged at the top of the shell; the crushing mechanism is located on the lower portion of the hopper and crushes coal entering the hopper. The conveying mechanism is located on the lower portion of the crushing mechanism, the screening frame is located on the lower portion of the conveying mechanism, and the conveying mechanism conveys crushed coal to the screening frame. The vibration mechanism is arranged at the bottom of the outer side of the screening frame to drive the screening frame to vibrate up and down so as to perform vibration screening on the crushed coal; the cleaning mechanism is located at the bottom of the inner side of the screening frame and can move back and forth along the bottom of the inner side of the screening frame to clean the bottom and / or screening holes of the screening frame. The efficient and continuous operation system integrating crushing, conveying, screening and cleaning is provided, accumulated materials at the bottom of the screening frame can be cleaned in real time through the cleaning mechanism, and screening holes can be accurately dredged.

Description

Technical Field

[0001] This invention belongs to the field of coal processing technology, specifically relating to a high-efficiency integrated coal crushing and screening machine. Background Technology

[0002] Coal is a core pillar of the global energy system, and its resource utilization requires crushing, screening, and grading to maximize efficiency. To meet the demands of large-scale and continuous production, high-efficiency integrated coal crushing and screening machines have emerged. These machines integrate crushing and screening functions, eliminating the intermediate transfer links of traditional separate equipment. Through the collaborative operation of multiple components, they complete coal processing and have become key equipment in coal mining, coal preparation plants, and other scenarios, promoting the intensive development of coal processing procedures.

[0003] The structure is designed around the core operating logic of the equipment, mainly including a feeding unit, a crushing unit, a screening unit, and a transmission drive unit. Each unit is integrated through a modular layout to ensure the continuous flow of coal from feeding, crushing to screening, and to meet the needs of high-efficiency processing.

[0004] Existing technologies also have shortcomings: when conveying large quantities of crushed coal, excessive material accumulation in the subsequent screening frames can easily occur. Excessive material not only clogs the screen holes, disrupting the smooth flow of the screening channel, but also prevents the material from fully participating in the screening process due to the screen frame's load-bearing capacity exceeding its adaptability, thus reducing overall screening efficiency.

[0005] To address the aforementioned issues, it is necessary to propose a high-efficiency coal crushing and screening integrated machine that is rationally designed and effectively solves these problems. Summary of the Invention

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art and to provide a high-efficiency coal crushing and screening integrated machine.

[0007] This invention provides a high-efficiency coal crushing and screening integrated machine, including a shell and a crushing mechanism, a conveying mechanism, a screening frame, a vibration mechanism and a cleaning mechanism disposed within the shell; A hopper is provided at the top of the shell; The crushing mechanism is located at the bottom of the hopper and is used to crush the coal entering the hopper. The conveying mechanism is located below the crushing mechanism, and the screening frame is located below the conveying mechanism. The conveying mechanism is used to convey the crushed coal to the screening frame. The vibration mechanism is located at the bottom outer side of the screening frame and is used to drive the screening frame to vibrate up and down to vibrate and screen the crushed coal. The cleaning mechanism is located at the inner bottom of the screening frame. The cleaning mechanism can reciprocate along the inner bottom of the screening frame to clean the bottom of the screening frame and / or the screen holes.

[0008] Optionally, the vibration mechanism includes a vibration motor and a telescopic sleeve; The vibration motor is located at the bottom outer side of the screening frame; The first end of the telescopic sleeve is connected to the outer bottom of the screening frame, and the second end of the telescopic sleeve is connected to the housing. The vibration motor drives the telescopic sleeve to move up and down, thereby driving the screening frame to vibrate up and down.

[0009] Optionally, the telescopic sleeve includes a movable tube and a support rod; The support rods are located at the four corners inside the housing; A movable tube is slidably sleeved on the outer side of the support rod, and a spring is provided between the movable tube and the support rod.

[0010] Optionally, the cleaning mechanism includes a translation drive mechanism and a roller brush, the roller brush contacting the inner bottom of the screening frame; The translation drive mechanism is used to drive the roller brush to reciprocate along the inner bottom of the screening frame.

[0011] Optionally, the translation drive mechanism includes a fixed motor, a lead screw, and a slider; The fixed motor is mounted on the housing, and the output shaft of the fixed motor is connected to the lead screw drive; The slider is threadedly connected to the lead screw, and the slider is provided with the roller brush.

[0012] Optionally, a linkage mechanism is provided between the roller brush and the housing; The linkage mechanism is used to drive the roller brush to rotate when the roller brush moves horizontally.

[0013] Optionally, the linkage mechanism includes a toothed plate fixed to the inner sidewall of the housing and a second gear fixed to the end of the roller brush, wherein the second gear meshes with the toothed plate.

[0014] Optionally, the conveying mechanism includes a cylinder and four gears disposed below the crushing mechanism, and the cylinder has material inlets at the top and bottom; The cylinder is equipped with a rotating shaft that rotates inside, and a scraper is mounted on the rotating shaft; The end of the rotating shaft is provided with a gear one, and the end of the lead screw is provided with the four gears that mesh with the gear one.

[0015] Optionally, an opening is provided between the shell and the screening frame, and a reinforcing pad and / or buffer particles are provided inside the opening.

[0016] Optionally, the crushing mechanism includes a drive motor and a crushing roller; The drive motor drives the crushing roller to rotate, thereby crushing the coal.

[0017] This invention relates to a high-efficiency integrated coal crushing and screening machine. The crushing mechanism crushes the coal, which is then conveyed to the screening frame via a conveying mechanism. A vibration mechanism drives the screening frame to vibrate up and down, thus vibrating and screening the crushed coal. A cleaning mechanism reciprocates along the inner bottom of the screening frame to clean the bottom of the frame and / or the screen holes. This invention provides a highly efficient and continuous operation system integrating crushing, conveying, screening, and cleaning. The cleaning mechanism can clean the accumulated material at the bottom of the screening frame in real time and precisely unclog the screen holes, avoiding problems such as coal adhesion and blockage. This reduces the frequency of manual cleaning and downtime, maintains the unobstructed flow rate of the screen holes, improves the continuity and processing efficiency of coal screening, and thus ensures efficient production operations. Attached Figure Description

[0018] Figure 1 This is a front sectional view of a high-efficiency coal crushing and screening integrated machine according to an embodiment of the present invention; Figure 2 This is a rear sectional view of a high-efficiency coal crushing and screening integrated machine according to another embodiment of the present invention; Figure 3 For the present invention Figure 1 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram showing the connection between the housing and the toothed plate in another embodiment of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 As shown, the present invention provides a high-efficiency coal crushing and screening integrated machine, including a housing 1 and a crushing mechanism, a conveying mechanism 3, a screening frame 4, a vibration mechanism and a cleaning mechanism disposed within the housing 1.

[0021] A hopper 6 is provided on the top of the housing 1.

[0022] The crushing mechanism is located at the lower part of the hopper 6, and the crushing mechanism is used to crush the coal entering the hopper 6.

[0023] The conveying mechanism 3 is located below the crushing mechanism, and the screening frame 4 is located below the conveying mechanism 3. The conveying mechanism 3 is used to convey the crushed coal to the screening frame 4.

[0024] The vibration mechanism is located at the bottom outer side of the screening frame 4 and is used to drive the screening frame 4 to vibrate up and down to vibrate and screen the crushed coal.

[0025] The cleaning mechanism is located at the inner bottom of the screening frame 4. The cleaning mechanism can reciprocate along the inner bottom of the screening frame 4 to clean the bottom of the screening frame and / or the screen holes.

[0026] This invention relates to a high-efficiency integrated coal crushing and screening machine. The crushing mechanism crushes the coal, which is then conveyed to the screening frame via a conveying mechanism. A vibration mechanism drives the screening frame to vibrate up and down, thus vibrating and screening the crushed coal. A cleaning mechanism reciprocates along the inner bottom of the screening frame to clean the bottom of the frame and / or the screen holes. This invention provides a highly efficient and continuous operation system integrating crushing, conveying, screening, and cleaning. The cleaning mechanism can clean the accumulated material at the bottom of the screening frame in real time and precisely unclog the screen holes, avoiding problems such as coal adhesion and blockage. This reduces the frequency of manual cleaning and downtime, maintains the unobstructed flow rate of the screen holes, improves the continuity and processing efficiency of coal screening, and thus ensures efficient production operations.

[0027] For example, such as Figure 2 As shown, the vibration mechanism includes a vibration motor 8 and a telescopic sleeve 7; the vibration motor 8 is located at the bottom outer side of the screening frame 4; the first end of the telescopic sleeve 7 is connected to the bottom outer side of the screening frame 4, and the second end of the telescopic sleeve 7 is connected to the housing; the vibration motor 8 drives the telescopic sleeve 7 to move up and down, thereby driving the screening frame 4 to vibrate up and down.

[0028] In this embodiment, the telescopic sleeve 7 is driven to move up and down by the vibration motor 8, which in turn drives the screening frame 4 to vibrate up and down, thereby realizing the vibration screening of the crushed coal.

[0029] For example, the telescopic sleeve 7 includes a movable tube and a support rod; the support rod is located at the four corners inside the housing 1; the movable tube is slidably sleeved on the outside of the support rod, and a spring is provided between the movable tube and the support rod.

[0030] In this embodiment, the combination of the movable tube, support rod, and spring provides the screening frame with excellent elastic cushioning and automatic reset capability. This not only effectively absorbs vibration impact and protects other components, but also makes the vibration of the screening frame gentler and more elastic, which helps to loosen the material and improve screening efficiency.

[0031] For example, such as Figure 2 As shown, the cleaning mechanism includes a translation drive mechanism and a roller brush 12, the roller brush 12 being in contact with the inner bottom of the screening frame 4; the translation drive mechanism is used to drive the roller brush 12 to reciprocate along the inner bottom of the screening frame 4.

[0032] In this embodiment, the cleaning mechanism includes a translation drive mechanism and a roller brush, realizing automated and mechanized cleaning operations. The direct contact of the roller brush can effectively scrape off accumulated material and unclog the screen holes, and its reciprocating motion ensures that there are no dead corners in the cleaning, thereby reliably maintaining the unobstructed flow of the screening channel.

[0033] For example, such as Figure 2 As shown, the translation drive mechanism includes a fixed motor 9, a lead screw 10, and a slider 11; the fixed motor 9 is mounted on the housing 1, and the output shaft of the fixed motor 9 is connected to the lead screw 10 for transmission; the slider 11 is threaded to the lead screw 10, and the roller brush 12 is provided on the slider 11.

[0034] In this embodiment, the lead screw can accurately convert the rotational motion of the motor into linear reciprocating motion, resulting in high transmission efficiency and accurate positioning, ensuring that the roller brush can stably adhere to the bottom of the screening frame for cleaning operations.

[0035] For example, such as Figure 1 As shown, a linkage mechanism 13 is provided between the roller brush 12 and the housing 1; the linkage mechanism 13 is used to drive the roller brush 12 to rotate when it moves horizontally.

[0036] In this embodiment, the linkage mechanism enables the roller brush to rotate while moving horizontally, which can more effectively "stir" out the particles stuck in the sieve holes. Compared with simple horizontal scraping, the unblocking effect is more thorough.

[0037] For example, such as Figure 3 and Figure 4 As shown, the linkage mechanism 13 includes a toothed plate 1301 fixed to the inner side wall of the housing 1 and a gear 1302 fixed to the end of the roller brush 12. The gear 1302 meshes with the toothed plate 1301.

[0038] In this embodiment, the horizontal movement of the roller brush is seamlessly converted into its own rotational motion through the meshing of gears and racks, without the need for an additional power source. The structure is ingenious, low in cost, and the transmission is reliable.

[0039] For example, such as Figure 1 and Figure 2As shown, the conveying mechanism 3 includes a cylinder 301 and a four-gear 306 disposed below the crushing mechanism 2. The cylinder 301 has a material inlet 303 at the top and bottom. A rotating shaft 302 is rotatably disposed inside the cylinder 301, and a scraper 304 is disposed on the rotating shaft 302. A gear 305 is disposed at the end of the rotating shaft 302, and the four-gear 306 that meshes with the gear 305 is disposed at the end of the lead screw 10.

[0040] In this embodiment, the drive of the cleaning mechanism and the power of the conveying mechanism are creatively linked. The four gears at the end of the lead screw drive the scraper of the conveying mechanism to rotate intermittently, achieving quantitative and uniform conveying of the crushed coal. This avoids excessive accumulation or material breakage on the screening frame, creating conditions for efficient screening from the source, while also simplifying the transmission system and saving energy and equipment costs.

[0041] For example, such as Figure 4 As shown, an opening 14 is provided between the housing 1 and the screening frame 4, and a reinforcing pad and / or buffer particles are provided inside the opening 14.

[0042] In this embodiment, by setting reinforcing pads and buffer particles inside the through-hole 14, the structural strength and service life of the through-hole are enhanced. The buffer particles can effectively absorb the impact and vibration energy of materials, reduce equipment noise and wear, ensure smooth material passage, and improve the durability and stability of the equipment.

[0043] For example, such as Figure 1 As shown, the crushing mechanism includes a drive motor 5 and a crushing roller 2; the drive motor 5 drives the crushing roller 2 to rotate, thereby crushing the coal.

[0044] The following are several specific embodiments to illustrate the working process of the high-efficiency coal crushing and screening integrated machine of the present invention.

[0045] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a high-efficiency coal crushing and screening integrated machine, including a shell 1, a hopper 6 installed on the top of the shell 1, telescopic sleeves 7 installed at the four corners inside the shell 1, a screening frame 4 installed on the top of the telescopic sleeves 7, a vibrating motor 8 symmetrically installed at the bottom of the screening frame 4, a crushing roller 2 installed inside the shell 1, and a drive motor 5 for driving the crushing roller 2 installed on one side of the shell 1.

[0046] A fixed motor 9 is installed on one side of the housing 1. A lead screw 10 is fixed to the output shaft of the fixed motor 9 and extends through to the outside of the housing 1. A slider 11 is threadedly connected to the outside of the lead screw 10 and slides against the inner wall of the housing 1. A roller brush 12 is fixed to one side of the slider 11 and is located below the screening frame 4. A linkage mechanism 13 is provided between the roller brush 12 and the housing 1. A conveying mechanism 3 is provided between the housing 1 and the lead screw 10. An opening 14 is provided between the housing 1 and the screening frame 4.

[0047] Coal enters the crushing rollers 2 inside the shell 1 through the hopper 6. The rolling crushing rollers 2 crush the coal, and the crushed coal falls into the screening frame 4. The vibrating motor 8 is started, and under the elastic force of the telescopic sleeve 7, the screening frame 4 vibrates up and down to screen the coal. At the same time, the fixed motor 9 is started, and the fixed motor 9 drives the lead screw 10 to rotate. Under the sliding limit action of the slider 11 on the inner side wall of the shell 1, the lead screw 10 drives the slider 11 to slide along the bottom of the screening frame 4 to clean the bottom of the screening frame 4 and unclog the screen holes of the screening frame 4 to avoid clogging of the screen holes and maintain the screening rate of coal materials.

[0048] Example 2 The solution in Example 1 will be further described below with reference to its specific working method. like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, the conveying mechanism 3 further includes a cylinder 301 and a four-gear 306. The cylinder 301 is fixed inside the housing 1 and located below the crushing roller 2. The top and bottom of the cylinder 301 are provided with material inlets 303. A rotating shaft 302 is rotatably installed inside the cylinder 301, and the end of the rotating shaft 302 extends to the outside of the housing 1. Scrapers 304 are evenly installed on the outside of the rotating shaft 302. A gear 305 is fixed to the end of the rotating shaft 302. The four-gear 306 is sleeved on the end of the lead screw 10, and the four-gear 306 meshes with the gear 305.

[0049] The fixed motor 9 drives the lead screw 10 and the four gears 306 to rotate. The four gears 306 intermittently drive the gear 305 to rotate, which in turn drives the rotating shaft 302 and the scraper 304 to rotate intermittently. After being crushed by the crushing roller 2, the material enters between the scrapers 304 inside the cylinder 301. The intermittently rotating scrapers 304 then intermittently convey the coal material to the screening frame 4 below, making the quantitative conveying of the material more stable.

[0050] like Figure 1 , Figure 3 and Figure 4As shown, in a preferred embodiment, based on the above method, the linkage mechanism 13 further includes a toothed plate 1301 and a second gear 1302. The toothed plate 1301 is fixedly installed on the inner side wall of the housing 1 and located below the opening 14. The second gear 1302 is fixedly installed on the end of the roller brush 12 away from the slider 11, and the second gear 1302 meshes with the toothed plate 1301.

[0051] When the slider 11 drives the roller brush 12 to move horizontally back and forth, the roller brush 12 drives the gear 1302 to move along the toothed plate 1301. Under the meshing between the toothed plate 1301 and the gear 1302, the gear 1302 rotates while moving along the toothed plate 1301, which in turn drives the roller brush 12 to rotate and clear the mesh of the screening frame 4.

[0052] like Figure 2 As shown, in a preferred embodiment, based on the above method, the telescopic sleeve 7 further includes a movable tube and a support rod. The support rod is located at the four corners inside the housing 1. The movable tube is slidably sleeved on the outside of the support rod, and a spring is provided between the movable tube and the support rod.

[0053] The movable tube and support rod, together with the spring, form a telescopic sleeve 7, which can provide stable and elastic support for the screening frame 4. It can not only follow the vibration motor 8 to flexibly realize up and down reciprocating vibration to ensure the screening effect, but also reduce the vibration impact through the buffering effect of the spring.

[0054] like Figure 1 and Figure 4 As shown, in a preferred embodiment, based on the above method, a reinforcing pad is uniformly fixed on the inner side of the opening 14, and buffer particles are provided on the reinforcing pad.

[0055] The reinforcing pads on the inside of the opening 14, combined with buffer particles, not only enhance the overall load-bearing strength of the structure and prevent deformation and damage caused by material impact, but also absorb the vibration energy and noise generated during the screening process. At the same time, they reduce the friction loss between the material and the inner wall of the opening 14 during material conveying, ensuring smooth material flow.

[0056] like Figure 1 and Figure 2 As shown, in a preferred embodiment, based on the above method, a sliding ring is further fixed at the bottom of the slider 11, a limiting rod slides inside the sliding ring, and the two ends of the limiting rod are fixedly connected to the inner sidewall of the housing 1.

[0057] The bottom of the slider 11 is connected to the limit rod by a sliding ring, which further enhances the sliding guidance effect of the slider 11 and prevents it from deviating or getting stuck when it moves along the lead screw 10, so as to ensure that the roller brush 12 can accurately fit the bottom of the screening frame 4.

[0058] like Figure 1 and Figure 4 As shown, in a preferred embodiment, based on the above method, the toothed plate 1301 is further inclinedly installed on the inner side wall of the housing 1, and a support block is fixed at the bottom of the toothed plate 1301.

[0059] The toothed plate 1301 is arranged at an angle and fixed by a support block, which increases the meshing contact range with the gear 1302 and ensures that the roller brush 12 can rotate stably throughout the horizontal movement, thereby improving the sieve hole clearing efficiency.

[0060] Example 3 The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods. Coal enters the shell 1 through the hopper 6 and is first crushed by the rolling crushing roller 2. The crushed coal enters the cylinder 301 and falls between the scrapers 304. After the fixed motor 9 starts, it synchronously drives the lead screw 10 and the four gears 306 to rotate. The four gears 306 intermittently drive the gear 1 305 to rotate, which in turn drives the rotating shaft 302 and the scrapers 304 to operate intermittently, so as to realize the stable and quantitative conveying of coal to the screening frame 4 below. At the same time, the vibrating motor 8 starts, and under the elastic reset action of the telescopic sleeve 7, it drives the screening frame 4 to vibrate up and down to complete the coal grading. Under the limiting guidance of the inner wall of the shell 1, the lead screw 10 drives the slider 11 to slide along the bottom of the screening frame 4, cleaning the accumulated material at the bottom of the frame and clearing the screen holes in real time, so as to ensure continuous and efficient screening.

[0061] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A high-efficiency coal crushing and screening integrated machine, characterized in that, The shell and the crushing mechanism, conveying mechanism, screening frame, vibrating mechanism and cleaning mechanism arranged in the shell; The top of the shell is provided with a hopper; The crushing mechanism is located at the lower part of the hopper, and is used for crushing the coal entering the hopper; The conveying mechanism is located at the lower part of the crushing mechanism, and the screening frame is located at the lower part of the conveying mechanism, and the conveying mechanism is used for conveying the crushed coal to the screening frame; The vibrating mechanism is arranged at the outer bottom of the screening frame, and is used for driving the screening frame to vibrate up and down to vibrate and screen the crushed coal; The cleaning mechanism is located at the inner bottom of the screening frame, and can reciprocate along the inner bottom of the screening frame to clean the bottom and / or screen hole of the screening frame.

2. The efficient coal crushing and screening integrated machine according to claim 1, characterized in that, The vibrating mechanism comprises a vibrating motor and a telescopic sleeve rod; The vibrating motor is arranged at the outer bottom of the screening frame; The first end of the telescopic sleeve rod is connected with the outer bottom of the screening frame, and the second end of the telescopic sleeve rod is connected with the shell; The vibrating motor drives the telescopic sleeve rod to move up and down, thereby driving the screening frame to vibrate up and down.

3. The high-efficiency coal crushing and screening integrated machine according to claim 2, characterized in that, The telescopic sleeve rod comprises a movable pipe and a support rod; The support rod is located at the four corners of the inside of the shell; The outer side of the support rod is sleeved with a movable pipe, and a spring is arranged between the movable pipe and the support rod.

4. The high-efficiency coal crushing and screening all-in-one machine according to any one of claims 1 to 3, characterized in that, The cleaning mechanism comprises a translation driving mechanism and a rolling brush, and the rolling brush is in contact with the inner bottom of the screening frame; The translation driving mechanism is used for driving the rolling brush to reciprocate along the inner bottom of the screening frame.

5. The efficient coal crushing and screening integrated machine as claimed in claim 4, wherein The translation driving mechanism comprises a fixed motor, a lead screw and a sliding block; The fixed motor is mounted on the shell, and the output shaft of the fixed motor is in transmission connection with the lead screw; The sliding block is threadedly connected with the lead screw, and the rolling brush is arranged on the sliding block.

6. The high-efficiency coal crushing and screening integrated machine according to claim 4, characterized in that, A linkage mechanism is arranged between the rolling brush and the shell; The linkage mechanism is used for driving the rolling brush to rotate when the rolling brush moves horizontally.

7. The high-efficiency coal crushing and screening integrated machine according to claim 6, characterized in that, The linkage mechanism comprises a tooth plate fixed to the inner wall of the shell and a second gear fixed to the end of the rolling brush, and the second gear is in engagement with the tooth plate.

8. The efficient coal crushing and screening integrated machine as claimed in claim 5, wherein, The conveying mechanism comprises a cylinder arranged below the crushing mechanism and four gears, and the top and bottom of the cylinder are provided with feed ports; A rotating shaft is arranged in the cylinder, and a scraper is arranged on the rotating shaft; The end of the rotating shaft is provided with a first gear, and the end of the lead screw is provided with the four gears in engagement with the first gear.

9. The high-efficiency coal crushing and screening all-in-one machine according to any one of claims 1 to 3, characterized in that, A through port is arranged between the shell and the screening frame, and a reinforcing pad and / or buffer particles are arranged inside the through port.

10. The high-efficiency coal crushing and screening all-in-one machine according to any one of claims 1 to 3, characterized in that, The crushing mechanism comprises a driving motor and a crushing roller; The driving motor drives the crushing roller to rotate, thereby crushing the coal.

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