Anti-blocking and breaking assembly for coal slime viscous material
By introducing an anti-sticking component into the crushing assembly, and utilizing a combination structure of a rotating disc, a fixed rod, a buffer trough, and a scraper, the problem of coal slime adhering to the equipment wall was solved, thereby reducing operating resistance and energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU ELECTRIC INVESTMENT ZHANGYE POWER GENERATION CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-21
AI Technical Summary
During the crushing process, coal slime contains a large amount of clay minerals and colloidal substances. When the moisture content increases, it tends to adhere to the equipment wall, leading to increased operating resistance and energy consumption.
A crushing component for non-sticky materials was designed, including an anti-sticking component. It utilizes a combination structure of a rotating disk, a fixed rod, a buffer groove, a buffer spring, and a scraper. Through the elastic contact and buffering design between the scraper and the inner wall of the mixing tank, it can achieve comprehensive scraping of coal slime and reduce the adhesion rate.
It effectively reduces the operating resistance of components such as crushing rollers, reduces equipment energy consumption, improves equipment operation and maintenance efficiency, and reduces maintenance costs.
Smart Images

Figure CN224524871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal slime viscous material crushing technology, specifically to an anti-clogging crushing component for coal slime viscous materials. Background Technology
[0002] The anti-clogging crushing component for viscous materials is a special mechanical device designed to address the problem of equipment clogging during the crushing process of coal slime. It uses staggered crushing rollers that generate shearing, squeezing and tearing forces through opposite rotation to crush viscous coal slime into small particles.
[0003] The working process of the anti-clogging crushing component for viscous materials: Peat slime is fed into the feed chute by a belt conveyor or screw feeder. An electromagnetic vibrating feeder or a variable frequency speed control feeder is installed at the feed inlet. According to the real-time material level in the crushing chamber, the variable frequency drive motor starts and drives the dual-shaft or multi-shaft crushing rollers to generate a triple force of shearing, squeezing and tearing on the coal slime at a set speed. The crushed coal slime particles are discharged through the discharge port. A guide plate is installed at the bottom to ensure that the material falls smoothly.
[0004] When the moisture content of coal slime rises sharply due to factors such as rain, the coal slime contains a large amount of clay minerals and colloidal substances, giving it natural viscosity. When the moisture content increases, water molecules fill the spaces between the coal slime particles, forming a water film. On the one hand, the water film reduces the friction between the coal slime particles, making them easier to flow and aggregate. On the other hand, the surface tension and adsorption force of the water film enhance the adhesion between the coal slime and the inner wall of the mixer, making it easier for the coal slime to adhere to the wall surface. If not treated in time, a large amount of sticky coal slime adhering to the inner wall of the mixer will increase the operating resistance of components such as the crushing roller, thus increasing the energy consumption of the equipment.
[0005] Therefore, a clog-preventing crushing component for viscous coal slime materials is proposed to address the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide an anti-clogging crushing component for viscous coal slime materials, in order to solve the problem that coal slime contains a large amount of clay minerals and colloidal substances, which have natural viscosity. When the moisture content increases, the coal slime is more likely to adhere to the wall surface. If it is not treated in time, a large amount of viscous coal slime will adhere to the inner wall of the agitator, which will increase the running resistance of the crushing roller and other components, and increase the energy consumption of the equipment.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A clog-resistant crushing assembly for viscous coal slime includes a crushing mechanism. An intelligent controller is fixedly connected to one side of the crushing mechanism. A vibration unblocking device is fixedly connected inside the crushing mechanism. A crushing roller is rotatably connected to the inner side of the mixing drum of the crushing mechanism, and an anti-sticking component is fixedly connected to the outer side of the crushing roller. The anti-sticking component includes a rotating disk. A fixed rod is fixedly connected to one edge of the rotating disk. A buffer groove is formed on the outer side of the lower end of the fixed rod. Fixed shafts are fixedly connected to both ends of the inner side of the buffer groove. A buffer spring is fixedly connected to the outer side of the fixed shaft. A scraper is fixedly connected to the outer ring of the buffer spring. The scraper includes a mounting plate. A mounting screw is bolted to one side of the mounting plate. One end of the mounting screw passes through the mounting plate and is spirally connected to the scraper body. A slot is formed at one end of the scraper body, and a clamping plate is fixedly connected to the other end of the scraper body.
[0009] As a further optimization of this utility model, one end of the crushing roller is fixedly connected to the outside of the crushing mechanism via a drive motor. There are two rotating disks and two fixed rods. The two fixed rods are symmetrically arranged around the center line of the rotating disk. The outside of the rotating disk is rotatably connected to the inner wall of the crushing mechanism.
[0010] As a further optimization of this utility model, the buffer groove is opened along the length of the fixed rod, the vertical cross-section of the buffer groove is crescent-shaped, the fixed shaft is horizontally mounted inside the buffer groove, and the gap between the outer side of the fixed shaft and the inner wall of the buffer groove is 5cm.
[0011] As a further optimization of this utility model, the buffer spring is sleeved on the outside of the fixed shaft, the scraper is suspended in the buffer groove by the buffer spring, the mounting plate is rotatably connected to the outside of the fixed shaft, and the arc-shaped upper end of the mounting plate is in close contact with the inner side of the buffer groove.
[0012] As a further optimization of this utility model, the mounting plate is a rectangular plate structure, and multiple threaded holes are provided on the lower end of one side of the mounting plate and on one side of the scraper body. The number of mounting screws is set to multiple, and the mounting screws are evenly distributed along the length of the mounting plate. The number of threaded holes on the scraper body of the mounting plate is the same as the number of mounting screws.
[0013] As a further optimization of this utility model, the scraper body is an arc-shaped plate, the arc-shaped opening of the scraper body is bent in a clockwise direction, the arc of the scraper body is adapted to the arc of the inner wall of the mixing tank, one end of the scraper body is in close contact with the inner wall of the mixing tank, and multiple scraper bodies are provided.
[0014] As a further optimization of this utility model, the card plate is an arc-shaped block structure, the card slot is opened at the other end of the scraper body, the shape and size of the card slot are adapted to the card plate, and the card plate and the card slot are fitted with a clearance.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] In this invention, the anti-sticking components, with the rotating disk and fixed rod symmetrically distributed, provide stable support, ensuring uniform force on the scraper. This allows the scraper to be fully scraped from the surface of the mixing tank, giving it elastic buffering capabilities. It can yield and reset when encountering hard blocks, avoiding damage from hard contact. At the same time, it conforms to the curved surface of the tank wall, eliminating scraping dead angles. The splicing structure adapts to changes in the scraper position, facilitating quick disassembly and cleaning. This effectively reduces the coal slime adhesion rate, reduces the operating resistance of components such as the crushing roller, and lowers equipment energy consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the installation position of the crushing roller of this utility model;
[0019] Figure 3 This is a schematic diagram of the installation position of the fixing rod of this utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of the fixing rod of this utility model;
[0021] Figure 5 This utility model Figure 4 Schematic diagram of the structure at point A in the middle;
[0022] Figure 6 This is a schematic diagram of the disassembled scraper structure of this utility model;
[0023] Figure 7 This is a schematic diagram of the card slot installation position structure of this utility model.
[0024] In the diagram: 1. Crushing mechanism; 2. Intelligent controller; 3. Vibration unblocking device; 4. Crushing roller;
[0025] 5. Anti-stick component; 51. Rotating disc; 52. Fixing rod; 53. Buffer groove; 54. Fixing shaft; 55. Buffer spring; 56. Scraper; 561. Mounting plate; 562. Mounting screw; 563. Scraper body; 564. Card plate; 565. Card slot. Detailed Implementation
[0026] 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.
[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0028] Please see Figure 1-7 This utility model provides a technical solution:
[0029] A clog-resistant crushing assembly for viscous coal slime includes a crushing mechanism 1, an intelligent controller 2 fixedly connected to one side of the crushing mechanism 1, a vibration unblocking device 3 fixedly connected inside the crushing mechanism 1, a crushing roller 4 rotatably connected inside the mixing drum of the crushing mechanism 1, and an anti-sticking component 5 fixedly connected to the outside of the crushing roller 4. The anti-sticking component 5 includes a rotating disk 51, a fixed rod 52 fixedly connected to one edge of the rotating disk 51, a buffer groove 53 opened on the outer side of the lower end of the fixed rod 52, a fixed shaft 54 fixedly connected to both ends of the inner side of the buffer groove 53, a buffer spring 55 fixedly connected to the outside of the fixed shaft 54, and a scraper 56 fixedly connected to the outer ring of the buffer spring 55. The scraper 56 includes a mounting plate 561, a mounting screw 562 bolted to one side of the mounting plate 561, a scraper body 563 spirally connected to one end of the mounting screw 562 through one side of the mounting plate 561, a slot 565 opened at one end of the scraper body 563, and a slot 564 fixedly connected to the other end of the scraper body 563.
[0030] As a further implementation of the above technical solution: the set card plate 564 is an arc-shaped block structure, and the card groove 565 is opened at the other end of the scraper body 563. The shape and size of the card groove 565 are adapted to the card plate 564. The card plate 564 and the card groove 565 are fitted with a gap. The gap fit design allows the scraper body 563 to have a slight relative displacement in the spliced state, which can adapt to the positional changes of the scraper 56 due to the deformation of the buffer spring 55 and the unevenness of the inner wall of the mixing tank. It avoids mutual pulling and damage caused by the hard connection between the scraper bodies 563, facilitates the quick assembly and disassembly of the scraper bodies 563, and can replace some scraper bodies 563 individually when some scraper bodies 563 are damaged, reducing maintenance costs and difficulties and improving equipment operation and maintenance efficiency.
[0031] As a further implementation of the above technical solution: one end of the crushing roller 4 is fixedly connected to the outside of the crushing mechanism 1 via a drive motor. There are two rotating disks 51 and two fixed rods 52. The two fixed rods 52 are symmetrically arranged around the center line of the rotating disk 51. The outside of the rotating disk 51 is rotatably connected to the inner wall of the crushing mechanism 1. The drive motor is externally mounted, which facilitates the inspection, maintenance and heat dissipation of the motor, and reduces the risk of coal slime drying inside the crushing mechanism 1 due to motor heat. The rotating disk 51 is rotatably connected to the inner wall of the crushing mechanism 1, which provides additional support for the anti-sticking component 5, enhances the overall structural stability, reduces the swaying amplitude of the anti-sticking component 5 when the crushing roller 4 rotates, and improves the scraping accuracy.
[0032] As a further implementation of the above technical solution: the mounting plate 561 is a rectangular plate structure, and multiple threaded holes are opened on the lower end of one side of the mounting plate 561 and on one side of the scraper body 563. The number of mounting screws 562 is set to multiple, and the mounting screws 562 are evenly distributed along the length of the mounting plate 561. The number of threaded holes on the mounting plate 561 and the scraper body 563 is the same as the number of mounting screws 562, so that the connection between the mounting plate 561 and the scraper body 563 is more secure, the force when scraping coal slime is dispersed, and local stress concentration is avoided, which may cause the scraper body 563 to fall off or the mounting plate 561 to deform. This facilitates the replacement of the scraper body 563 in the future and shortens the maintenance time.
[0033] As a further implementation of the above technical solution: the scraper body 563 is an arc-shaped plate with the arc opening of the scraper body 563 curving clockwise. The arc of the scraper body 563 is adapted to the arc of the inner wall of the mixing tank. One end of the scraper body 563 is in close contact with the inner wall of the mixing tank. Multiple scraper bodies 563 are provided. The arc-shaped scraper body 563 is adapted to the arc of the inner wall of the mixing tank, which increases the contact area between the scraper 56 and the inner wall, increases the amount of coal slurry scraped in a single operation, reduces scraping dead angles, and avoids coal slurry accumulation on the tank wall. The rotational centrifugal force assists the scraper body 563 in scraping coal slurry, making it easier for the coal slurry to fall off the tank wall, reducing the scraping resistance of the scraper 56, saving driving energy consumption, and cleaning the coal slurry on the tank wall multiple times to prevent the coal slurry from adhering and drying for a long time.
[0034] As a further implementation of the above technical solution: the buffer groove 53 is set along the length of the fixed rod 52, and the vertical cross-section of the buffer groove 53 is set in the shape of a crescent. The fixed shaft 54 is horizontally mounted inside the buffer groove 53, and the gap between the outer side of the fixed shaft 54 and the inner wall of the buffer groove 53 is 5cm. The crescent-shaped buffer groove 53 provides a suitable space for the swing of the scraper 56. Its arc contour fits the swing trajectory of the scraper 56, avoiding the scraper 56 from getting stuck in the buffer groove 53. This ensures that when the coal slime impacts or hard blocks collide, the scraper 56 can smoothly retreat and reset. The 5cm gap between the fixed shaft 54 and the buffer groove 53 provides sufficient space for the compression and extension of the buffer spring 55, ensuring the integrity of the elastic function of the buffer spring 55 and effectively absorbing the impact force during the scraping process. The symmetrical fixed rod 52 and the crescent buffer groove 53 work together to achieve the effect of uniform scraping and elastic buffering.
[0035] As a further implementation of the above technical solution: a buffer spring 55 is sleeved on the outside of the fixed shaft 54, and the scraper 56 is suspended in the buffer groove 53 by the buffer spring 55. The mounting plate 561 is rotatably connected to the outside of the fixed shaft 54, and the upper arc-shaped end of the mounting plate 561 is in close contact with the inner side of the buffer groove 53. Utilizing the elastic tension of the buffer spring 55, the scraper 56 always tends to adhere to the inner wall of the mixing tank. Combined with the limiting function of the buffer groove 53, elastic pressure and rigid scraping are achieved, effectively scraping away coal slime. To prevent the scraper 56 from damaging the inner wall of the mixing tank through hard contact, the rotating connection between the mounting plate 561 and the fixed shaft 54 allows the scraper 56 to be finely adjusted around the fixed shaft 54 to adapt to the curvature changes of the inner wall of the mixing tank, thereby improving the scraping coverage and fit. The fit between the upper arc of the mounting plate 561 and the inner side of the buffer groove 53 provides auxiliary limiting for the scraper 56, preventing the scraper 56 from swinging excessively due to the impact force of coal slime, ensuring the stability of the scraper 56's movement, and at the same time, it plays a guiding role when the scraper 56 is reset, accelerating the recovery speed of the scraping action.
[0036] Workflow: The intelligent controller 2 sends a command to drive the motor to rotate the crushing roller 4, with an adjustable speed of 10-30 rpm. The vibration unblocking device 3 starts simultaneously, using high-frequency vibration (50-100 Hz) to prevent initial adhesion of coal slime to the inner wall of the mixing drum. The coal slime enters the mixing drum through the feed inlet and is cut and squeezed by the spiral crushing teeth on the surface of the rotating crushing roller 4. The intelligent controller 2 monitors the crushing resistance in real time based on the motor load current. When the load exceeds the threshold, it automatically reduces the speed and increases the torque to avoid overload. The rotating disk 51 rotates synchronously with the crushing roller 4, driving the fixed rod 52 to move circumferentially along the inner wall of the mixing drum. The two rotating disks 51, through the symmetrically distributed fixed rods 52, ensure that the scraper 56 covers the entire inner wall of the mixing drum. When the scraper 56 contacts the coal slime layer on the inner wall of the mixing drum, the buffer spring 55 is compressed and deformed, ensuring that the scraper 56 always maintains elastic contact with the inner wall. The contact pressure is 5-10N. The crescent-shaped buffer groove 53 limits the swing range of the scraper 56 to avoid detachment or excessive wear caused by violent vibration. Multiple scraper bodies 563 are spliced into a ring by the clamping plate 564 and the clamping groove 565. When the rotating disk 51 rotates, it continuously scrapes off the coal sludge. The bending direction of the arc-shaped scraper body 563 is consistent with the rotation direction. Centrifugal force is used to assist in scraping the sludge and reduce the risk of adhesion. When the scraper body 563 needs to be replaced, the individual scraper body 563 can be replaced in a short time by using the mounting screw 562 and the threaded hole. There is no need to disassemble the entire anti-sticking component 5. When encountering hard material, the buffer spring 55 is compressed, causing the scraper 56 to temporarily retract to avoid damage from hard collision. The arc-shaped upper end of the mounting plate 561 is in close contact with the buffer groove 53. After retraction, it quickly resets and restores the normal scraping function, which facilitates continuous cleaning of the inner wall of the crushing mechanism 1.
[0037] 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 clog-resistant crushing assembly for viscous coal slime materials, comprising a crushing mechanism (1), characterized in that: A smart controller (2) is fixedly connected to one side of the crushing mechanism (1), a vibration unblocking device (3) is fixedly connected inside the crushing mechanism (1), a crushing roller (4) is rotatably connected to the inner side of the mixing tank of the crushing mechanism (1), and an anti-sticking component (5) is fixedly connected to the outer side of the crushing roller (4). The anti-stick component (5) includes a rotating disk (51), a fixed rod (52) is fixedly connected to one side edge of the rotating disk (51), a buffer groove (53) is provided on the outer side of the lower end of the fixed rod (52), a fixed shaft (54) is fixedly connected to both ends of the inner side of the buffer groove (53), a buffer spring (55) is fixedly connected to the outer side of the fixed shaft (54), and a scraper (56) is fixedly connected to the outer ring of the buffer spring (55). The scraper (56) includes a mounting plate (561), a mounting screw (562) is bolted to one side of the mounting plate (561), one end of the mounting screw (562) passes through the mounting plate (561) and is spirally connected to the scraper body (563), one end of the scraper body (563) is provided with a slot (565), and the other end of the scraper body (563) is fixedly connected with a card plate (564).
2. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: One end of the crushing roller (4) is fixedly connected to the outside of the crushing mechanism (1) by a drive motor. There are two rotating disks (51) and two fixed rods (52). The two fixed rods (52) are symmetrically arranged around the center line of the rotating disk (51). The outside of the rotating disk (51) is rotatably connected to the inner wall of the crushing mechanism (1).
3. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: The buffer groove (53) is opened along the length of the fixed rod (52). The vertical cross-section of the buffer groove (53) is crescent-shaped. The fixed shaft (54) is horizontally mounted inside the buffer groove (53). The gap between the outer side of the fixed shaft (54) and the inner wall of the buffer groove (53) is 5cm.
4. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: The buffer spring (55) is sleeved on the outside of the fixed shaft (54), the scraper (56) is suspended in the buffer groove (53) by the buffer spring (55), the mounting plate (561) is rotatably connected to the outside of the fixed shaft (54), and the upper arc of the mounting plate (561) is in close contact with the inside of the buffer groove (53).
5. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: The mounting plate (561) is a rectangular plate structure. Multiple threaded holes are provided on the lower end of one side of the mounting plate (561) and on one side of the scraper body (563). The number of mounting screws (562) is set to multiple. The mounting screws (562) are evenly distributed along the length direction of the mounting plate (561). The number of threaded holes on the scraper body (563) of the mounting plate (561) is the same as the number of mounting screws (562).
6. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: The scraper body (563) is an arc-shaped plate. The arc-shaped opening of the scraper body (563) is bent in a clockwise direction. The arc of the scraper body (563) is adapted to the arc of the inner wall of the mixing tank. One end of the scraper body (563) is in close contact with the inner wall of the mixing tank. Multiple scraper bodies (563) are provided.
7. The anti-clogging and crushing component for viscous coal slime materials according to claim 1, characterized in that: The card plate (564) is an arc-shaped block structure. The card slot (565) is opened at the other end of the scraper body (563). The shape and size of the card slot (565) are adapted to the card plate (564). The card plate (564) and the card slot (565) are fitted with a clearance.