Pulverized coal processing equipment

Abstract

The utility model discloses pulverized coal processing equipment which comprises an outer cylinder and an inner cylinder, the inner cylinder is fixedly installed in the outer cylinder, and sieve holes are formed in the surface of the inner cylinder. The pulverized coal crushing device has the beneficial effects that the grinding crushing roller, the inner cylinder and the shovel plate are adopted, when pulverized coal is crushed, a worker can put pulverized coal raw materials into the inner cylinder from the feeding hopper, the driving motor drives the main shaft rod to rotate, then the grinding crushing roller and the shovel plate are driven to rotate, the shovel plate shovels the accumulated pulverized coal raw materials, the pulverized coal raw materials are lifted through rotation, and the pulverized coal raw materials are crushed. According to the device, the problem that the pulverized coal raw materials are difficult to crush due to the fact that the particle size is too large is avoided in a turning and throwing mode, the rolling crushing rollers rotate synchronously when pressure is applied to crush the pulverized coal raw materials, abrasion is reduced through rolling, the service life is prolonged, the operation stability is improved, and meanwhile, the crushing efficiency is improved. The surface area of the inner cylinder is large, the distribution range of screen holes is wide, screening efficiency is higher, and working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing equipment, in particular to pulverized coal processing equipment. Background Art

[0002] Pulverized coal refers to coal with a particle size of less than 6mm. Pulverized coal particle size is an important physical parameter of pulverized coal combustion. The particle size significantly affects the temperature of its combustion flame, the degree of burnout and the emission of NO2. With the improvement of the comprehensive mining level and the increase in the proportion of lower-group coal mining, the pulverized coal content continues to increase. In addition, due to long-distance transportation, a considerable part of the raw coal reaching the hands of users is pulverized coal, resulting in the increasingly intensified contradiction between the supply of lump coal and the backlog of a large amount of pulverized coal. In order to change this situation, vigorously developing the pulverized coal molding industry is an important way to resolve this contradiction.

[0003] After searching, it was found that the announcement number is CN214076952U, and the name is a low-quality pulverized coal processing device. The application pointed out that the existing pulverized coal processing device has a complex structure. After the pulverized coal is processed and ground, some large particles of pulverized coal are screened and taken out for re-grinding. At the same time, some pulverized coal is not fully ground and is discharged, which causes the pulverized coal to have low quality. The problem of insufficiently ground pulverized coal affecting its combustion and use is that two special-shaped scrapers, a linkage disk, a filter hole and an extrusion groove are provided. The distance between the special-shaped scraper and the inclined surface of the extrusion groove is gradually reduced until it fits with the outer wall of the hemispherical particles on the extrusion groove, and the preliminarily ground pulverized coal is subjected to a secondary extrusion. The pulverized coal that is secondarily extruded and ground in the extrusion groove is filtered and screened by the filter hole. The screened ground and uniform pulverized coal flows into the connecting cavity from the screen tube, and then the processed pulverized coal is discharged from the discharge port. The large particles of pulverized coal that are not filtered by the filter hole are driven by the corresponding special-shaped scraper to rotate a circle and are again removed from the linkage disk. Screening, multiple grinding and screening of pulverized coal, avoids uneven grinding of pulverized coal, and automatically cycles grinding and screening to improve grinding efficiency. At the same time, by providing a linkage disk, a slot, a connecting column and a spring, the contact and extrusion between the two special-shaped scrapers and the linkage disk is avoided, resulting in serious wear on the surface of the linkage disk and the grinding disk, thereby improving the service life of the linkage disk and the grinding disk. However, in actual use, this application is restricted by the spring stroke, and it is difficult for larger pulverized coal raw materials to enter between the linkage disk and the scraper, and it is difficult to crush large-sized pulverized coal raw materials. At the same time, the screening structure of this application has a small distribution area, and the screening efficiency is not high. It is very easy to cause material accumulation problems, which reduces work efficiency. At the same time, the dynamic friction between the scraper and the linkage disk, although a spring structure is adopted, the wear of the dynamic friction is still large, and further improvements can be made. In addition, the efficiency of clearing the screen holes by shaking is low, and further improvements can be made.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the present invention provides a pulverized coal processing device, which has the advantage of improving work efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (2) Technical solution

[0008] In order to achieve the above-mentioned advantage of improved work efficiency, the specific technical solutions adopted by the present invention are as follows:

[0009] A pulverized coal processing equipment comprises an outer cylinder and an inner cylinder, wherein the inner cylinder is fixedly installed inside the outer cylinder, and sieve holes are opened on the surface of the inner cylinder, and a driving motor is fixedly installed on the back surface of the outer cylinder, and a main shaft rod is installed on the output end of the driving motor, and the main shaft rod passes through the inner cylinder and is rotatably connected to the inner cylinder, and the outer surface of the main shaft rod is rotatably connected to the crushing roller through a roller frame, and a shovel plate is fixedly installed on the surface of the roller frame on one side of the crushing roller, a connecting frame is fixedly installed on one end of the main shaft rod, and a roller shaft is fixedly connected to the surface of the connecting frame, and a side roller is rotatably sleeved on the outer side of the roller shaft, a top rod is fixedly installed on the outer surface of the side roller, and a feed hopper is connected through the surface of the other end of the inner cylinder.

[0010] Furthermore, a discharge port is connected through the bottom surface of the outer cylinder, and a support leg is fixedly installed on the outside of the discharge port and located on the bottom surface of the outer cylinder.

[0011] Furthermore, a cyclone dust collector is installed on one side of the outer cylinder, and the input end of the cyclone dust collector is connected to the outer cylinder through an inlet pipe, and the output end of the cyclone dust collector is connected to a centrifugal fan through an exhaust pipe.

[0012] Furthermore, the push rod is a truncated cone structure, and the push rod is arranged corresponding to the sieve holes.

[0013] Furthermore, both ends of the main shaft are rotatably connected to the outer cylinder via bearings, and the main shaft, inner cylinder and outer cylinder are coaxially arranged.

[0014] Furthermore, the roller frames and crushing rollers are distributed in multiple groups at equal angles along the central axis of the main shaft, and the spacing between the crushing rollers and the inner wall of the inner cylinder is smaller than the target particle size of the pulverized coal.

[0015] Furthermore, the sieve holes are densely distributed with equal intervals, and the diameter of the sieve holes is smaller than the diameter of the top surface of the mandrel.

[0016] Furthermore, the roller shaft is rotatably connected to the side roller via a bearing.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a pulverized coal processing device with the following beneficial effects:

[0019] (1) The present invention adopts a crushing roller, an inner cylinder and a shovel. When crushing pulverized coal, the staff can put the pulverized coal raw materials from the feed hopper into the inner cylinder, and the driving motor drives the main shaft to rotate, thereby driving the crushing roller and the shovel to rotate. The shovel scoops up the accumulated pulverized coal raw materials and lifts up the pulverized coal raw materials by rotation. The pulverized coal raw materials collide with each other and are crushed during the falling process. At the same time, the crushing roller crushes the pulverized coal raw materials by applying pressure, thereby continuously crushing the pulverized coal raw materials by rotating until the particle size of the pulverized coal raw materials is smaller than the sieve hole size and then flows out along the discharge port, completing continuous and efficient crushing, eliminating the trouble of cyclic screening and crushing, and improving the crushing efficiency. At the same time, the device avoids the problem of pulverized coal raw materials being too large to be crushed by the flipping method. The crushing roller rotates synchronously when applying pressure for crushing, reducing wear by rolling, extending the service life, and improving the stability of operation. At the same time, the inner cylinder has a large surface area, a wide distribution range of sieve holes, and a higher screening efficiency, thereby further improving the work efficiency.

[0020] (2) The utility model adopts a push rod and a side roller. During the rotation of the main shaft, the main shaft drives the side roller to revolve. Since the head of the push rod is inserted into the sieve hole, the side roller rotates synchronously with the revolving of the side roller. The push rod is inserted into the sieve hole to push the blocked raw materials back into the inner cylinder, thus avoiding the occurrence of blockage. Compared with the traditional vibration anti-blocking method, the dredging efficiency through the push rod return method is higher, the anti-blocking efficiency is improved, and thus the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a pulverized coal processing device proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of the outer cylinder proposed by the utility model;

[0024] Figure 3 This is a structural diagram of the crushing roller proposed by the utility model;

[0025] Figure 4 It is a structural schematic diagram of the outer cylinder proposed by the utility model.

[0026] In the picture:

[0027] 1. Outer cylinder; 2. Inner cylinder; 3. Sieve hole; 4. Main shaft; 5. Roller frame; 6. Crushing roller; 7. Shovel plate; 8. Side roller; 9. Roller shaft; 10. Push rod; 11. Discharge port; 12. Cyclone dust collector; 13. Inlet pipe; 14. Exhaust pipe; 15. Centrifugal fan; 16. Drive motor; 17. Connecting frame; 18. Feed hopper. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a pulverized coal processing device is provided.

[0030] The present invention will now be further described with reference to the accompanying drawings and specific embodiments. Figure 1-4As shown, a pulverized coal processing equipment according to an embodiment of the present invention includes an outer cylinder 1 and an inner cylinder 2, the inner cylinder 2 is fixedly installed inside the outer cylinder 1, and a sieve hole 3 is opened on the surface of the inner cylinder 2, and a driving motor 16 is fixedly installed on the back surface of the outer cylinder 1, and a main shaft rod 4 is installed on the output end of the driving motor 16, and the main shaft rod 4 passes through the inner cylinder 2 and is rotatably connected to the inner cylinder 2, and the outer surface of the main shaft rod 4 is rotatably connected to the crushing roller 6 through the roller frame 5, and a shovel plate 7 is fixedly installed on the surface of the roller frame 5 on one side of the crushing roller 6, and the shovel plate 7 is arranged obliquely, and the main shaft rod 4 rotates counterclockwise, and a connecting frame 17 is fixedly installed on one end of the main shaft rod 4, and a roller shaft 9 is fixedly connected to the surface of the connecting frame 17, and a side roller 8 is rotatably sleeved on the outer side of the roller shaft 9, and a top rod 10 is fixedly installed on the outer surface of the side roller 8, and a feed hopper 18 is connected to the surface of the other end of the inner cylinder 2. When the pulverized coal is crushed, the staff can put the pulverized coal raw material from the feed hopper 18 into the inner cylinder. 2, the driving motor 16 drives the main shaft rod 4 to rotate, and then drives the crushing roller 6 and the shovel plate 7 to rotate. The shovel plate 7 scoops up the accumulated pulverized coal raw materials and lifts the pulverized coal raw materials by rotation. The pulverized coal raw materials collide with each other and are crushed during the falling process. At the same time, the crushing roller 6 crushes the pulverized coal raw materials by applying pressure, thereby crushing the pulverized coal raw materials through continuous rotation until the particle size of the pulverized coal raw materials is smaller than the aperture of the sieve hole 3 and then flows out along the discharge port 11, completing continuous and efficient crushing, eliminating the trouble of cyclic screening and crushing, and improving the crushing efficiency. At the same time, the device avoids the problem of pulverized coal raw materials being difficult to crush because of their large particle size by turning over. The crushing roller 6 rotates synchronously when applying pressure for crushing, reduces wear by rolling, extends service life, and improves operational stability. At the same time, the surface area of ​​the inner cylinder 2 is large, the sieve holes 3 are widely distributed, the screening efficiency is higher, and the working efficiency is further improved.

[0031] In one embodiment, a discharge port 11 is connected through the bottom surface of the outer cylinder 1 , and a support leg is fixedly installed on the outside of the discharge port 11 on the bottom surface of the outer cylinder 1 , so that the discharge port 11 facilitates the discharge of materials.

[0032] In one embodiment, a cyclone dust collector 12 is installed on one side of the outer cylinder 1, and the input end of the cyclone dust collector 12 is connected to the outer cylinder 1 through an inlet pipe 13, and the output end of the cyclone dust collector 12 is connected to a centrifugal fan 15 through an exhaust pipe 14. The centrifugal fan 15 extracts air and draws dust into the cyclone dust collector 12 to perform dust removal operations and reduce environmental pollution.

[0033] In one embodiment, the push rod 10 is a truncated cone structure, and the push rod 10 is arranged corresponding to the sieve hole 3, wherein the sieve holes 3 are densely distributed at equal intervals, and the aperture of the sieve hole 3 is smaller than the diameter of the top surface of the push rod 10, so as to facilitate the insertion of the push rod 10. During the rotation of the main shaft rod 4, the main shaft rod 4 drives the side roller 8 to revolve. Since the head of the push rod 10 is inserted into the sieve hole 3, as the side roller 8 revolves, the side roller 8 rotates synchronously. The push rod 10 is inserted into the inside of the sieve hole 3 to push the blocked raw material back to the inner tube 2, avoiding the occurrence of blockage. Compared with the traditional vibration anti-blocking, the dredging efficiency is higher by returning the push rod 10, which improves the anti-blocking efficiency and thus improves the work efficiency.

[0034] In one embodiment, both ends of the main shaft rod 4 are rotatably connected to the outer cylinder 1 through bearings, and the main shaft rod 4, the inner cylinder 2 and the outer cylinder 1 are coaxially arranged to improve the stability of rotation.

[0035] In one embodiment, there are multiple groups of roller frames 5 and crushing rollers 6 distributed at equal angles along the central axis of the main shaft 4, and the distance between the crushing rollers 6 and the inner wall of the inner tube 2 is smaller than the target particle size of the pulverized coal, which facilitates crushing the pulverized coal raw materials to the target particle size.

[0036] In one embodiment, the roller shaft 9 is rotatably connected to the side roller 8 via a bearing, and the roller shaft 9 and the side roller 8 are coaxially arranged.

[0037] Working principle:

[0038] When crushing the pulverized coal, the staff can put the pulverized coal raw materials into the inner cylinder 2 from the feed hopper 18, and the driving motor 16 drives the main shaft rod 4 to rotate, thereby driving the crushing roller 6 and the shovel plate 7 to rotate, and the shovel plate 7 scoops up the accumulated pulverized coal raw materials, and lifts the pulverized coal raw materials by rotation. The pulverized coal raw materials collide with each other and are crushed during the falling process. At the same time, the crushing roller 6 crushes the pulverized coal raw materials by applying pressure, thereby continuously crushing the pulverized coal raw materials by rotating until the particle size of the pulverized coal raw materials is smaller than the aperture of the sieve hole 3 and then flows out along the discharge port 11, completing continuous and efficient crushing, eliminating the trouble of cyclic screening and crushing, and improving the crushing efficiency. At the same time, the device avoids the problem of pulverized coal raw materials being too large and difficult to crush by flipping and throwing. To solve the problem of crushing, the crushing roller 6 rotates synchronously when applying pressure for crushing, which reduces wear by rolling, extends service life, and improves operational stability. At the same time, the inner cylinder 2 has a large surface area, the sieve holes 3 have a wide distribution range, the screening efficiency is higher, and the work efficiency is further improved. At the same time, in the process of the rotation of the main shaft rod 4, the main shaft rod 4 drives the side roller 8 to revolve. Since the head of the top rod 10 is inserted into the sieve hole 3, as the side roller 8 revolves, the side roller 8 rotates synchronously, and the top rod 10 is inserted into the inside of the sieve hole 3 to push the blocked raw materials back to the inner cylinder 2, avoiding blockage. Compared with the traditional vibration anti-blocking, the dredging efficiency is higher by returning the top rod 10, which improves the anti-blocking efficiency and thus improves the work efficiency.

[0039] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pulverized coal processing equipment, characterized in that: The invention comprises an outer cylinder (1) and an inner cylinder (2), wherein the inner cylinder (2) is fixedly installed inside the outer cylinder (1), and a sieve hole (3) is provided on the surface of the inner cylinder (2), and a driving motor (16) is fixedly installed on the back surface of the outer cylinder (1), and a main shaft (4) is installed on the output end of the driving motor (16), and the main shaft (4) passes through the inner cylinder (2) and is rotatably connected to the inner cylinder (2), and the outer surface of the main shaft (4) is rotatably connected to the crushing roller (6) through the roller frame (5), and a shovel plate (7) is fixedly installed on the surface of the roller frame (5) on one side of the crushing roller (6), and a connecting frame (17) is fixedly installed on one end of the main shaft (4), and a roller shaft (9) is fixedly connected to the surface of the connecting frame (17), and a side roller (8) is rotatably sleeved on the outer side of the roller shaft (9), and a top rod (10) is fixedly installed on the outer surface of the side roller (8), and a feed hopper (18) is connected through the other end surface of the inner cylinder (2).

2. The pulverized coal processing equipment according to claim 1, characterized in that: The bottom surface of the outer cylinder (1) is connected through a discharge port (11), and a support leg is fixedly installed on the outside of the discharge port (11) and located on the bottom surface of the outer cylinder (1).

3. The pulverized coal processing equipment according to claim 1, characterized in that: A cyclone dust collector (12) is installed on one side of the outer cylinder (1), and the input end of the cyclone dust collector (12) is connected to the outer cylinder (1) through an inlet pipe (13), and the output end of the cyclone dust collector (12) is connected to a centrifugal fan (15) through an exhaust pipe (14).

4. The pulverized coal processing equipment according to claim 1, characterized in that: The push rod (10) is a truncated cone structure, and the push rod (10) is arranged corresponding to the sieve hole (3).

5. The pulverized coal processing equipment according to claim 1, characterized in that: Both ends of the main shaft rod (4) are rotatably connected to the outer cylinder (1) via bearings, and the main shaft rod (4), the inner cylinder (2) and the outer cylinder (1) are coaxially arranged.

6. The pulverized coal processing equipment according to claim 1, characterized in that: The roller frames (5) and crushing rollers (6) are distributed in multiple groups at equal angles along the central axis of the main shaft (4), and the distance between the crushing rollers (6) and the inner wall of the inner cylinder (2) is smaller than the target particle size of the pulverized coal.

7. The pulverized coal processing equipment according to claim 1, characterized in that: The sieve holes (3) are densely distributed at equal intervals, and the diameter of the sieve holes (3) is smaller than the diameter of the top surface of the push rod (10).

8. The pulverized coal processing equipment according to claim 1, characterized in that: The roller shaft (9) is rotatably connected to the side roller (8) via a bearing.

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