Efficient uniform mixing device for pulverized coal
By designing a coal powder mixing device including a mixing box, crushing roller, powder mixing rod, filtering assembly, dust treatment box and vibration assembly, the problem of dust overflow in the prior art is solved, efficient dust collection and treatment is achieved, and the environment and workers' health is protected.
Patent Information
- Application Number
- CN202420847418.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing coal powder mixing devices can easily cause dust overflow during long-term use, pollute the environment and endanger workers' health.
A highly efficient and uniform mixing device for coal powder is designed, including a mixing box, crushing roller, powder mixing rod, filter assembly, dust treatment box, fan, vacuum pipe, filter cartridge, clean water and vibration assembly. The vacuum dust is intermittently activated by the fan, filter and precipitate the dust with the filter cartridge and clean water, and remove dust from the inner wall of the filter cartridge through the vibrating assembly.
It effectively avoids dust overflow, reduces environmental pollution and harm to human health, and at the same time realizes efficient collection and treatment of dust.
Smart Images
Figure CN222753139U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal powder mixing, in particular to a high-efficiency and uniform mixing device for coal powder. Background Art
[0002] Coal is a sedimentary rock formed by the transformation of ancient plant remains under geological action. It is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus. The formation of coal has undergone complex biological and geological processes, including plant accumulation, compaction, chemical changes and metamorphism. At present, coal is an important fossil fuel and is widely used in industries such as industry, electricity, and chemical industry.
[0003] In order to improve the combustion rate of coal powder, other catalysts are usually added to the coal powder, so a mixing device is usually used. The existing mixing device usually only has a stirring function when in use. If there are large coal blocks, it is difficult to stir them evenly. Therefore, a device with a crushing structure is designed in the prior art to make the mixing more uniform and efficient. For example, a coal powder mixing device disclosed in Patent No. CN218393443U can crush the coal before mixing.
[0004] However, the applicant found that when coal powder is continuously added to the device, due to the long stirring time and the fact that the coal powder has fine particles and is easy to disperse, dust overflow may easily occur. Dust overflow will not only pollute the working environment, but may also cause harm to the health of workers, such as causing respiratory diseases.
[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and a high-efficiency and uniform mixing device for coal powder is proposed. Utility Model Content
[0006] The purpose of the utility model is to provide a high-efficiency and uniform mixing device for coal powder to solve the problems raised in the above background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: it includes a mixing box, two crushing rollers and a powder stirring rod are installed inside the mixing box, a filter assembly is installed between the crushing rollers and the powder stirring rod inside the mixing box, a dust treatment box is installed on one side of the mixing box, a fan and a dust suction pipe are respectively installed on both sides of the dust treatment box, the pipe mouth of the dust suction pipe is located above the feed inlet at the top of the mixing box, a filter cartridge is installed in the circular groove of a square plate fixed on the inner wall of the dust treatment box, clean water is filled in the lower space inside the dust treatment box and the inner wall is rotatably connected to a water stirring rod, three gears meshing with each other are rotatably connected between the dust treatment box and the mixing box, and the gears are respectively connected to the rotating shafts of the powder stirring rod and the water stirring rod, a vibration assembly is installed on the top cover on the top of the dust treatment box, and the vibration assembly is used to intermittently beat the top surface of the filter cartridge to make dust fall off.
[0008] Preferably, the filter cartridge is composed of a cartridge plate and a mesh cartridge, the cartridge plate is fixed to the outer wall at the bottom end of the mesh cartridge, and the mesh cartridge opening is designed at the bottom surface, and the four insertion rods at the bottom of the cartridge plate are inserted into the rod holes in the circular groove of the square plate.
[0009] Preferably, the annular plate fixed at the bottom of the top cover is pressed onto the top surface of the net cylinder, and a soft pad is bonded to the bottom surface of the annular plate.
[0010] Preferably, a circle of sealing gasket is bonded to the outer wall of the cylinder plate, and the sealing gasket is in close contact with the inner wall of the circular groove of the square plate.
[0011] Preferably, the vibration assembly includes a slide plate that slides up and down inside the protective box, and the protective box is fixed on the top cover, a tooth plate is fixed on the top surface of the slide plate, and the tooth plate is meshed with a half gear that is rotatably connected to the inner wall of the protective box, the half gear is docked with a motor installed on the front side of the protective box, a square rod fixed at the bottom of the half gear passes through the protective box and is docked with a knocking plate, and the initial position of the knocking plate is in contact with the top surface of the filter cartridge, and a spring is connected to the bottom surface of the slide plate and the top cover.
[0012] Preferably, the two horizontal plates welded to the side walls of the dust treatment box are nailed to the mixing box, and the dust suction pipe passes through the circular hole of the horizontal plate, and a rubber ring can be bonded to the inner wall of the circular hole of the horizontal plate.
[0013] Preferably, the filter assembly comprises a filter plate inserted from the front opening of the mixing box, the bottom surface of the filter plate contacts support plates fixed on both sides of the inner wall of the mixing box, and a stopper is rotatably connected to the front of the filter assembly at the opening.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0015] 1. When the coal powder is mixed, the utility model sets the fan to start intermittently. Each time it is started, the dust suction pipe sucks the overflowed dust into the dust treatment box. Since the filter cartridge is inverted in the circular groove of the square plate, the dust enters the filter cartridge and is filtered, and the air flow is discharged with the fan. Each time the fan is turned off, the dust blocks accumulated on the inner wall of the filter cartridge will fall into the clean water. When the powder stirring rod rotates, the water stirring rod is driven to rotate by three mutually meshing gears to generate vortex, which can quickly sink the floating dust to the bottom and avoid suspension caused by the restart of the fan, thereby completing the dust collection. In this way, the overflowed dust is prevented from polluting the air and causing damage to the human body. At the same time, the collection is convenient and worthy of popularization.
[0016] 2. In the installation design of the filter cartridge of the utility model, the mesh cartridge is inverted in the circular groove of the square plate during installation. At this time, four plug rods are inserted into the rod holes of the square plate for initial positioning, and then the top cover is installed. The annular plate is pressed on the top surface of the mesh cartridge to complete the installation. In this way, there is no need to nail the filter cartridge separately, and it is also more convenient to disassemble. The sealing gasket can prevent dust leakage and ensure that all dust entering the filter cartridge is intercepted, which is very practical.
[0017] 3. The utility model uses a vibration component, so each time the fan is turned off or the work is finished, some dust adheres to the inner wall of the filter cartridge and is not easy to fall off. At this time, the motor installed on the front of the protective box is started to rotate the half gear, and the slide plate is meshed with the tooth plate to make the slide plate slide up intermittently and reset by the stretched spring. Each time the reset spring drives the knocking plate to accelerate the reset and beat the filter cartridge. At this time, the dust on the inner wall of the filter cartridge can be discharged into the clean water through the vibration force, thereby avoiding blockage that causes the airflow to be unable to pass or the dust accumulation to be squeezed through the mesh. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-efficiency and uniform mixing device for coal powder in this utility model;
[0019] Figure 2 This is a schematic diagram of the overall internal structure of a high-efficiency uniform mixing device for coal powder in the present invention;
[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of a vibration assembly and a filter cartridge of a high-efficiency uniform mixing device for coal powder in this utility model;
[0021] Figure 4 The present invention provides a schematic diagram of the top view connection structure of a powder stirring rod and a water stirring rod in a high-efficiency uniform mixing device for coal powder.
[0022] Figure 5 A high-efficiency and uniform mixing device for coal powder Figure 2 The enlarged structural diagram at A in the middle;
[0023] Figure 6 This is a schematic diagram of the three-dimensional structure of a filter assembly of a high-efficiency uniform mixing device for coal powder in this utility model;
[0024] Figure 7 The present invention provides a schematic diagram of the three-dimensional structure of an annular plate of a high-efficiency uniform mixing device for coal powder.
[0025] In the figure: 1. mixing box; 11. feed port; 12. crushing roller; 13. stirring rod; 2. dust treatment box; 21. square plate; 22. filter cartridge; 221. mesh cylinder; 222. cylinder plate; 223. plug rod; 224. sealing gasket; 23. dust suction pipe; 24. water stirring rod; 25. gear; 26. ring plate; 27. protection box; 28. top cover; 29. fan; 3. vibration assembly; 31. slide plate; 32. tooth plate; 33. half gear; 34. spring; 35. knocking plate; 4. filter assembly; 41. filter plate; 42. support plate; 43. stopper. DETAILED DESCRIPTION
[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0027] like Figure 1-Figure 7 As shown, it includes a mixing box 1, two crushing rollers 12 and a stirring rod 13 are installed inside the mixing box 1, a filter assembly 4 is installed between the crushing rollers 12 and the stirring rod 13 inside the mixing box 1, a dust treatment box 2 is installed on one side of the mixing box 1, a fan 29 and a dust suction pipe 23 are installed on both sides of the dust treatment box 2, the mouth of the dust suction pipe 23 is located above the feed inlet 11 at the top of the mixing box 1, a filter cartridge 22 is installed in the circular groove of the square plate 21 fixed on the inner wall of the dust treatment box 2, clean water is filled in the lower space inside the dust treatment box 2 and the inner wall is rotatably connected to a water stirring rod 24, three mutually meshing gears 25 are rotatably connected between the dust treatment box 2 and the mixing box 1, and the gears 25 are respectively connected to the rotating shafts of the stirring rod 13 and the water stirring rod 24, a vibration assembly 3 is installed on the top cover 28 on the top of the dust treatment box 2, and the vibration assembly 3 is used to intermittently beat the top surface of the filter cartridge 22 to make dust fall off.
[0028] The specific operation is as follows: when mixing coal powder, the crushing roller 12 and the stirring rod 13 are started, and the corresponding amount of coal blocks and coal powder mixture is introduced into the mixing box 1 from the feed port 11, first crushed by the crushing roller 12, then filtered by the filter assembly 4, and finally stirred and discharged by the stirring rod 13. In this process, the fan 29 is set to start intermittently. Each time it is started, the dust suction pipe 23 sucks the overflowed dust into the dust treatment box 2. Since the filter cartridge 22 is inverted in the circular groove of the square plate 21, the dust enters the filter cartridge 22 and is filtered, and the air flow is discharged with the fan 29. When the fan 29 is turned off each time, the inner wall of the filter cartridge 22 accumulates dust. The accumulated dust blocks will fall into the clean water. When the powder stirring rod 13 rotates, the three mutually meshing gears 25 drive the water stirring rod 24 to rotate to generate vortex, which can quickly sink the floating dust to the bottom to avoid suspension due to the restart of the fan 29, thereby completing the dust collection. At the same time, after the work is completed, the vibration component 3 can intermittently beat the filter cartridge 22 to make some dust stuck together or stuck in the mesh fall off to avoid blockage. Finally, open the bottom valve of the dust treatment box 2 to discharge the sewage. This prevents the overflowed dust from polluting the air and causing damage to the human body. At the same time, it is convenient to collect and worthy of popularization.
[0029] like Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, the filter cartridge 22 is composed of a cartridge plate 222 and a mesh cartridge 221. The cartridge plate 222 is fixed to the outer wall at the bottom end of the mesh cartridge 221, and the mesh cartridge 221 is opened on the bottom surface. The four plug rods 223 at the bottom of the cartridge plate 222 are inserted into the rod holes in the circular groove of the square plate 21. The annular plate 26 fixed at the bottom of the top cover 28 is pressed onto the top surface of the mesh cartridge 221, and a soft pad is bonded to the bottom surface of the annular plate 26. A circle of sealing pads 224 are bonded to the outer wall of the cartridge plate 222, and the sealing pads 224 are in close contact with the inner wall of the circular groove of the square plate 21.
[0030] The specific operation is as follows. In the installation design of the filter cartridge 22, the mesh cylinder 221 is inverted in the circular groove of the square plate 21 during installation. At this time, the four plug rods 223 are inserted into the rod holes of the square plate 21 for initial positioning. Then the top cover 25 is installed, and the annular plate 26 is pressed on the top surface of the mesh cylinder 221 to complete the installation. In this way, there is no need to nail the filter cartridge 22 separately, and it is also more convenient to disassemble. The sealing gasket 224 can prevent dust leakage and ensure that all dust enters the filter cartridge 22 and is intercepted, which is very practical.
[0031] like Figure 2 and Figure 3 As shown, the vibration assembly 3 includes a slide plate 31 that slides up and down inside the protective box 27, and the protective box 27 is fixed on the top cover 28. A tooth plate 32 is fixed on the top surface of the slide plate 31, and the tooth plate 32 is meshed with a half gear 33 that is rotatably connected to the inner wall of the protective box 27. The half gear 33 is docked with the motor installed on the front side of the protective box 27. A square rod fixed at the bottom of the half gear 33 passes through the protective box 27 and is docked with a knocking plate 35, and the initial position of the knocking plate 35 is in contact with the top surface of the filter cartridge 22. A spring 34 is connected to the bottom surface of the slide plate 31 and the top cover 28.
[0032] The specific operation is as follows: through the vibration component 3, each time the fan 29 is turned off or the work is finished, some dust adheres to the inner wall of the filter cartridge 22 and is not easy to fall off. At this time, the motor installed on the front of the protective box 27 is started to rotate the half gear 33, and the slide plate 31 is intermittently slid up through the engagement with the tooth plate 32, and is reset by the stretched spring 34. Each time the reset spring 34 drives the knocking plate 35 to accelerate the reset and beat the filter cartridge 22, the dust on the inner wall of the filter cartridge 22 can be discharged into the clean water through the vibration force, thereby avoiding blockage that causes the airflow to be unable to pass or the dust accumulation to be squeezed through the mesh.
[0033] like Figure 1 and Figure 2 The two horizontal plates 210 welded to the side walls of the dust treatment box 2 are nailed to the mixing box 1, and the dust suction pipe 23 passes through the circular hole of the horizontal plate 210, and a rubber ring can be bonded to the inner wall of the circular hole of the horizontal plate 210.
[0034] In this way, since the dust suction pipe 23 is relatively long, the horizontal plate 210 can provide a limiting protection thereto to prevent it from shaking or breaking due to airflow, and the rubber ring can also play a buffering role.
[0035] like Figure 1 , Figure 2 and Figure 6 As shown, the filter assembly 4 includes a filter plate 41 inserted from the front opening of the mixing box 1, the bottom surface of the filter plate 41 contacts the support plates 42 fixed on both sides of the inner wall of the mixing box 1, and a stopper 43 is rotatably connected to the front of the filter assembly 4 at the opening.
[0036] In this way, the filter plate 41 is inserted into the mixing box 1 before work, and the support plate 42 is used for support, and then the stopper 43 is rotated to limit the filter plate 41. The outer wall of the filter plate 41 is designed to fit with the inner wall of the mixing box 1, so it will not shake. At this time, the filter plate 41 can filter and recover the crushed coal blocks, which is very practical. After the work is completed, the stopper 43 can be rotated to pull out the filter plate 41.
[0037] Working principle: When mixing coal powder, start the crushing roller 12 and the stirring rod 13, and introduce the corresponding amount of coal blocks and coal powder mixture from the feed port 11 into the mixing box 1, first crushed by the crushing roller 12, then filtered by the filter component 4, and finally stirred and discharged by the stirring rod 13. In this process, the fan 29 is set to start intermittently. Each time it is started, the dust suction pipe 23 sucks the overflowing dust into the dust treatment box 2. Since the filter cartridge 22 is inverted in the circular groove of the square plate 21, the dust enters the filter cartridge 22 and is filtered, and the air flow is discharged with the fan 29. Every time the fan 29 is turned off, the dust blocks accumulated on the inner wall of the filter cartridge 22 will fall into the clean water. When the stirring rod 13 rotates, the three meshing gears 25 drive the stirring rod 24 to rotate to generate a vortex, which can remove the floating The dust quickly sinks to the bottom, thus completing the dust collection. After the work is completed, the motor installed on the front of the protective box 27 is started to rotate the half gear 33. Through the engagement with the tooth plate 32, the slide plate 31 slides up intermittently and is reset by the stretched spring 34. Each time the reset spring 34 drives the knocking plate 35 to accelerate the reset and beat the filter cartridge 22, the dust on the inner wall of the filter cartridge 22 can be discharged into the clean water through the vibration force, thereby avoiding blockage that causes the air flow to be unable to pass or the dust accumulation to be squeezed through the mesh. Finally, the filter plate 41 is pulled out to recover the coal powder, and then the bottom valve of the mixing box 1 is opened to discharge the material. It should be noted that the operation technology of the crushing roller 12 and the powder stirring rod 13 is the existing technical means and is proposed in the comparative literature, and the two powder stirring rods 13 are designed to rotate in the same direction, which will not be elaborated here.
[0038] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.
Claims
1. A high-efficiency uniform mixing device for coal powder, comprising a mixing box (1), wherein two crushing rollers (12) and a powder stirring rod (13) are installed inside the mixing box (1), characterized in that: A filter assembly (4) is installed between the crushing roller (12) and the stirring rod (13) inside the mixing box (1); a dust treatment box (2) is installed on one side of the mixing box (1); a fan (29) and a dust suction pipe (23) are installed on both sides of the dust treatment box (2); the mouth of the dust suction pipe (23) is located above the feed port (11) at the top of the mixing box (1); a filter cartridge (22) is installed in a circular groove of a square plate (21) fixed on the inner wall of the dust treatment box (2); The lower space inside the dust treatment box (2) is filled with clean water and the inner wall is rotatably connected to a water stirring rod (24). Three mutually meshing gears (25) are rotatably connected between the dust treatment box (2) and the mixing box (1), and the gears (25) are respectively connected to the rotating shafts of the powder stirring rod (13) and the water stirring rod (24). A vibration component (3) is installed on the top cover (28) on the top of the dust treatment box (2), and the vibration component (3) is used to intermittently beat the top surface of the filter cartridge (22) to make dust fall off.
2. A high-efficiency uniform mixing device for pulverized coal according to claim 1, characterized in that: The filter cartridge (22) is composed of a cartridge plate (222) and a mesh cartridge (221); the cartridge plate (222) is fixed to the outer wall at the bottom end of the mesh cartridge (221); the mesh cartridge (221) is opened at the bottom surface; and four insertion rods (223) at the bottom of the cartridge plate (222) are inserted into rod holes in the circular groove of the square plate (21).
3. A high-efficiency uniform mixing device for pulverized coal according to claim 2, characterized in that: The annular plate (26) fixed at the bottom of the top cover (28) is pressed onto the top surface of the net cylinder (221), and a soft pad is bonded to the bottom surface of the annular plate (26).
4. A high-efficiency uniform mixing device for pulverized coal according to claim 2, characterized in that: A circle of sealing gasket (224) is bonded to the outer wall of the cylinder plate (222), and the sealing gasket (224) is in close contact with the inner wall of the circular groove of the square plate (21).
5. The high-efficiency uniform mixing device for pulverized coal according to claim 1, characterized in that: The vibration component (3) includes a slide plate (31) that slides up and down inside the protection box (27), and the protection box (27) is fixed on the top cover (28). A tooth plate (32) is fixed on the top surface of the slide plate (31), and the tooth plate (32) is meshed with a half gear (33) that is rotatably connected to the inner wall of the protection box (27). The half gear (33) is connected to the motor installed on the front of the protection box (27). A square rod fixed at the bottom of the half gear (33) passes through the protection box (27) and is connected to a knocking plate (35), and the initial position of the knocking plate (35) is in contact with the top surface of the filter cartridge (22). The bottom surface of the slide plate (31) is connected to the top cover (28) by a spring (34).
6. The high-efficiency uniform mixing device for pulverized coal according to claim 1, characterized in that: The two horizontal plates (210) welded to the side walls of the dust treatment box (2) are nailed to the mixing box (1), and the dust suction pipe (23) passes through the circular hole of the horizontal plate (210), and a rubber ring can be bonded to the inner wall of the circular hole of the horizontal plate (210).
7. The high-efficiency uniform mixing device for pulverized coal according to claim 1, characterized in that: The filter assembly (4) comprises a filter plate (41) inserted from the front opening of the mixing box (1), the bottom surface of the filter plate (41) contacts support plates (42) fixed on both sides of the inner wall of the mixing box (1), and a stopper (43) is rotatably connected to the front of the filter assembly (4) at the opening.