CN107899707A - A kind of coal crushing classifying equipoment - Google Patents

Abstract

The invention discloses a coal crushing and grading equipment, which includes a storage hopper, a feeding part, a processing box, a crushing part, a screening and grading part and an electric control box. The upper part of the processing box is provided with a crushing part for crushing materials. The lower processing box of the crushing part is provided with a screening and grading part for grading the size of the material, and the side of the processing box is provided with a storage hopper, and the storage hopper is provided with an upper part for transferring the material from the storage hopper to the crushing part. The material part, the electric control box is electrically connected with the electrical components in the material feeding part, the crushing part and the screening and grading part through wires. The invention enables the equipment to crush the coal, and at the same time, the crushed coal can be divided into multiple grades, and the coal of different grades can be used for power generation according to the power generation requirements, and the temperature of the combustion furnace can be adjusted conveniently.

Description

A kind of coal crushing and grading equipment

【Technical field】

The invention relates to the technical field of coal crushing equipment, in particular to the technical field of coal crushing and grading equipment.

【Background technique】

China is rich in coal resources, and coal is the main fossil energy in our country. Because people's electricity consumption is different at different times, the power generation of all power plant generators needs to be adjusted appropriately, and the energy is adjusted by adjusting the amount of coal delivered to the combustion furnace, and then To achieve the purpose of controlling the power generation efficiency of the unit, but this method still cannot control the fire in the combustion furnace well and timely. At present, some power plants can adjust the power generation of the generator faster by transporting coal of different sizes during different power generation periods. , when the temperature needs to be lowered, the problem in the furnace can be reduced in time by adding water to the crushed coal, and when the problem needs to be improved, the gap between the coal can be increased by adding an appropriate amount of lumpy coal to increase the supply The amount of oxygen can quickly improve the problems in the combustion furnace. Since there is no equipment specifically for coal crushing and grading in thermal power stations, workers can only make choices based on existing conditions, and cannot crush and classify coal.

【Content of invention】

The purpose of the present invention is to solve the problems in the prior art, and propose a coal crushing and grading equipment, which can make the equipment crush the coal, and at the same time, the crushed coal can be divided into multiple grades, and different grades of coal can be used according to the needs of power generation. Power generation, easy to adjust the temperature of the combustion furnace.

In order to achieve the above object, the present invention proposes a coal crushing and grading equipment, including a storage hopper, a feeding part, a processing box, a crushing part, a screening and grading part and an electric control box. The upper part of the processing box is provided with a The crushing part, the lower processing box of the crushing part is provided with a screening and grading part for grading the size of the material, the side of the processing box is provided with a storage hopper, and the storage hopper is provided with a device for transporting the material from the storage hopper. To the feeding part in the crushing part, the electric control box is electrically connected with the electrical components in the feeding part, crushing part and screening and grading part through wires.

Preferably, the feeding part includes a material guiding cylinder, a feeding motor and a feeding screw, one end of the material guiding cylinder is located in the storage hopper, the other end of the material guiding cylinder is located above the crushing part, and the upper end of the material guiding cylinder is A feeding motor is installed through bolts, the rotating shaft of the feeding motor is connected with a feeding screw, and the lower end of the feeding screw is located in the storage hopper.

Preferably, the crushing part includes a fixed crushing knife, a dynamic crushing shaft, a dynamic crushing knife, a crushing motor and a material guide plate, the fixed crushing knife is fixed in the processing box, and the dynamic crushing shaft is arranged on the side of the fixed crushing knife 2-6 groups of dynamic crushing knives are arranged on the moving crushing shaft, and a material guide plate is arranged in the processing box on the right side of the moving crushing shaft to guide the material to the bottom of the fixed crushing knife. A crushing motor is arranged on the right side outside the body, and the rotating shaft of the crushing motor is connected with the moving crushing shaft through a transmission belt.

As a preference, the fixed crushing knife is composed of 6-20 fixed blades arranged at intervals of 6-25cm, the fixed blades are V-shaped, and one end of the fixed blades is welded on the inner wall of the processing box.

As a preference, the fixed crushing knife is composed of 12 fixed blades arranged at intervals of 20 cm.

As a preference, 3 groups of movable crushing knives are arranged on the movable crushing shaft, and the movable blades and fixed blades on each group of movable crushing blades are arranged alternately. The opening is opposite.

Preferably, the screening and grading section includes a screening frame, a first material output conveyor belt, a first material output guide cylinder, a second material output conveyor belt, a second material output guide cylinder, a third material output conveyor belt, and a third material output guide cylinder , a discharge tray and a material output transmission motor, the screening box includes a first screening box and a second screening box, the first screening box is located above the second screening box, and the first screening box is provided with a second screening box on the right side of the lower part A material output conveyor belt, the processing box on the right side of the first material output conveyor belt is provided with a first material output guide cylinder for outputting materials outward, and a second material output conveyor belt is provided on the right side of the lower part of the second screening frame. The processing box on the right side of the second material output conveyor belt is provided with a second material output guide cylinder for outputting materials outward, and the processing box below the second screening frame is provided with a third material output conveyor belt. The processing box on the right side of the output conveyor belt is provided with a third material output guide cylinder, and the bottom of the processing box below the third material output conveyor belt is provided with a bottom discharge tray, and a discharge hole is provided on the bottom discharge tray. The above-mentioned material output transmission motor is respectively connected with the main rotating shafts for screening and unloading on the first screening frame and the second screening frame through transmission belts.

Preferably, the first screening frame includes a screening turntable, a screening filter rod, and a main rotating shaft for screening and discharging, the number of the screening turntables is two, and screening filter rods are arranged at uniform intervals in a ring shape between the screening turntables, The outside of the screening turntable is provided with a main rotating shaft for screening and unloading passing through the side of the processing box. The second screening frame has the same structure as the first screening frame, and the gap between the screening filter rods on the second screening frame is smaller than that of the first screening frame. A gap between filter rods on a screen frame.

Preferably, the electric control box is electrically connected to the crushing motor through wires.

Preferably, the electric control box is electrically connected to the material output and transmission motor through wires.

Beneficial effects of the present invention: the present invention cuts and crushes the coal by crossing the fixed crushing knife and the dynamic crushing knife, and crushes the crushed coal through different passability screening frames, so that the equipment can crush the coal, and at the same time, the coal can be broken. The broken coal is divided into multiple grades, and different grades of coal can be used for power generation according to power generation needs, which is convenient for adjusting the temperature of the combustion furnace, achieving the purpose of adjusting power generation at different times, reducing energy waste and improving coal utilization.

The features and advantages of the present invention will be described in detail with reference to the accompanying drawings.

【Description of drawings】

Fig. 1 is the front view of a kind of coal crushing and grading equipment of the present invention;

Fig. 2 is a front sectional view of a kind of coal crushing and grading equipment of the present invention;

Fig. 3 is the top view of fixed crushing knife;

Fig. 4 is the front view of moving broken knife;

Fig. 5 is the front view of the first screening frame;

Fig. 6 is a right view of the first filter box.

In the figure: 1-storage hopper, 2-feeding part, 21-guiding barrel, 22-feeding motor, 23-feeding screw, 3-processing box, 4-crushing part, 41-fixed crushing knife, 411 -fixed blade, 42-moving crushing shaft, 43-moving crushing knife, 44-crushing motor, 45-material guide plate, 5-screening and grading part, 51-first screening frame, 511-screening turntable, 512-screening filter rod , 513-main rotating shaft for screening and unloading, 52-first material output conveyor belt, 53-first material output guide cylinder, 54-second screening frame, 55-second material output conveyor belt, 56-second material output guide cylinder, 57-the third material output conveyor belt, 58-the third material output guide cylinder, 59-bottom unloading tray, 60-material output transmission motor, 6-electric control box.

【Detailed ways】

Referring to Fig. 1, a kind of coal crushing and grading equipment of the present invention comprises a storage hopper 1, a feeding part 2, a processing box 3, a crushing part 4, a screening and grading part 5 and an electric control box 6, and the upper part of the processing box 3 is provided with There is a crushing part 4 for crushing materials, and a screening and grading part 5 for grading the size of materials is arranged in the processing box 3 at the lower part of the crushing part 4, and a storage hopper 1 is arranged on the side of the processing box 3, and the The storage hopper 1 is provided with a feeding part 2 that transfers materials from the storage hopper 1 to the crushing part 4, and the electric control box 6 passes through the electric components in the feeding part 2, the crushing part 4 and the screening and grading part 5. The wires are electrically connected. Referring to Fig. 2-Fig. 6, the material feeding part 2 includes a material guide cylinder 21, a material feeding motor 22 and a material feeding screw 23, one end of the material guide cylinder 21 is located in the storage hopper 1, and the other end of the material guide cylinder 21 Located above the crushing part 4, the upper end of the material guide cylinder 21 is equipped with a feeding motor 22 through bolts, the rotating shaft of the feeding motor 22 is connected with a feeding screw 23, and the lower end of the feeding screw 23 is located in the storage hopper 1 . The crushing part 4 includes a fixed crushing knife 41, a dynamic crushing shaft 42, a dynamic crushing knife 43, a crushing motor 44 and a material guide plate 45. The fixed crushing knife 41 is fixed in the processing box 3, and the dynamic crushing shaft 42 is set in the side processing box 3 of the fixed crushing knife 41, 2-6 groups of dynamic crushing knives 43 are arranged on the said dynamic crushing shaft 42, and the material Leading to the material guide plate 45 below the fixed crushing knife 41, the outside right side of the processing box 3 is provided with a crushing motor 44, and the rotating shaft of the crushing motor 44 is connected to the moving crushing shaft 42 through a transmission belt. The fixed crushing knife 41 is composed of 6-20 fixed blades 411 arranged at an interval of 6-25 cm. The fixed blades 411 are V-shaped, and one end of the fixed blades 411 is welded on the inner wall of the processing box 3 . The fixed crushing knife 41 is composed of 12 fixed blades 411 arranged at intervals of 20 cm. The movable crushing shaft 42 is provided with 3 groups of movable crushing knives 43, and the movable blades and fixed blades 411 on each group of movable crushing knives 43 are arranged alternately. The opening of 411 is opposite. The screening and grading section 5 includes a screening frame, a first material output conveyor belt 52, a first material output guide cylinder 53, a second material output conveyor belt 55, a second material output guide cylinder 56, a third material output conveyor belt 57, and a third material output conveyor belt 57. The output guide cylinder 58, the discharge tray and the material output transmission motor 60, the screening frame includes a first screening frame 51 and a second screening frame 54, the first screening frame 51 is located above the second screening frame 54, and the first screening frame 51 is located above the second screening frame 54. A first material output conveyor belt 52 is arranged on the right side of the lower part of a screening frame 51, and a first material output guide cylinder 53 for outwardly outputting materials is arranged on the processing box 3 on the right side of the first material output conveyor belt 52. The right side of the lower part of the screening frame 54 is provided with a second material output conveyor belt 55, and the processing box 3 on the right side of the second material output conveyor belt 55 is provided with a second material output guide cylinder 56 for outwardly outputting materials. A third material output conveyor belt 57 is arranged on the processing box body 3 below the frame 54, and a third material output guide cylinder 58 is arranged on the processing box body 3 on the right side of the third material output conveyor belt 57. The third material output conveyor belt 57 The bottom of the lower processing box 3 is provided with a bottom discharge tray 59, and the bottom discharge tray 59 is provided with a discharge hole, and the material output transmission motor 60 is respectively connected to the first screening frame 51 and the second screening frame 54 through a transmission belt. Screening and discharging main rotating shaft 513 transmission connection on the screen. The first screening frame 51 includes a screening turntable 511, a screening filter rod 512 and a main rotating shaft 513 for screening and unloading. The number of the screening turntables 511 is two, and the screening turntables 511 are arranged with ring-shaped evenly spaced screens. Filter rod 512, the outside of the screening turntable 511 is provided with a screening and discharging main rotating shaft 513 passing through the side of the processing box 3, the second screening frame 54 has the same structure as the first screening frame 51, and the second screening frame 54 has the same structure as the first screening frame 51. The gap between the screening filter rods 512 is smaller than the gap between the screening filter rods 512 on the first screening frame 51. The electric control box 6 is electrically connected with the crushing motor 44 through wires. The electric control box 6 is electrically connected with the material output and transmission motor 60 through wires.

Working process of the present invention:

During the working process of the coal crushing and grading equipment of the present invention, coal is first sent into the storage hopper 1, and the feeding screw 23 is driven to rotate by the feeding motor 22, and the coal is driven to move upward in the material guide cylinder 21 by the feeding screw 23 Finally, the coal is sent into the V-shaped groove on the fixed crushing knife 41, the crushing motor 44 drives the dynamic crushing shaft 42 to rotate, the dynamic crushing shaft 42 drives the dynamic crushing knife 43 to rotate, and the dynamic crushing knife 43 intersects with the fixed crushing knife 41. The coal is cut into pieces, and the broken coal falls on the first screening frame 51, and the first screening frame 51 is driven to rotate through the material output transmission motor 60, and the smaller coal falls on the second screening frame 54 from between the screening rods 512 , the larger coal rotates with the first screening frame 51, and finally falls on the first material output conveyor belt 52, and the coal is discharged from the first material output guide cylinder 53 through the first material output conveyor belt 52, and falls on the second screening frame 54 coals, the smaller ones pass through the screening filter rod 512 on the second screening frame 54 and fall on the third material output conveyor belt 57, and the larger ones finally fall on the second material output with the rotation of the second screening frame 54 On the conveyor belt 55, the coal is finally discharged from the equipment through the second material output guide cylinder 56, and the coal that falls on the third material output conveyor belt 57 is finally discharged from the equipment through the third material output guide cylinder 58.

The coal crushing and grading equipment of the present invention cuts and crushes the coal by crossing the fixed crushing knife 41 and the dynamic crushing knife 43, and crushes the crushed coal through different passability screening frames, so that the equipment can crush the coal, At the same time, the broken coal can be divided into multiple grades, and different grades of coal can be used for power generation according to power generation needs, which is convenient for adjusting the temperature of the combustion furnace, achieving the purpose of adjusting power generation at different times, reducing energy waste and improving coal utilization.

The above-mentioned embodiment is an illustration of the present invention, not a limitation of the present invention, and any solution after a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims (10)

1. A coal crushing and grading equipment, characterized in that: it includes a storage hopper (1), a feeding part (2), a processing box (3), a crushing part (4), a screening and grading part (5) and an electric control box (6), the upper part of the processing box (3) is provided with a crushing part (4) for crushing materials, and the lower part of the processing box (3) of the crushing part (4) is provided with a screening device for grading the material size A classification section (5), the side of the processing box (3) is provided with a storage hopper (1), and the storage hopper (1) is provided with a device for transferring materials from the storage hopper (1) to the crushing section (4). The feeding part (2), the electric control box (6) is electrically connected with the electric components in the feeding part (2), the crushing part (4) and the screening and grading part (5) through wires. 2. A kind of coal crushing and grading equipment as claimed in claim 1, characterized in that: the feeding part (2) comprises a material guide cylinder (21), a feeding motor (22) and a feeding screw (23), One end of the material guide cylinder (21) is located in the storage hopper (1), the other end of the material guide cylinder (21) is located above the crushing part (4), and the upper end of the material guide cylinder (21) is installed with a feeding A motor (22), the rotating shaft of the feeding motor (22) is connected with a feeding screw (23), and the lower end of the feeding screw (23) is located in the storage hopper (1). 3. The coal crushing and grading equipment according to claim 1, characterized in that: the crushing part (4) includes a fixed crushing knife (41), a dynamic crushing shaft (42), a dynamic crushing knife (43), a crushing The motor (44) and the material guide plate (45), the fixed crushing knife (41) is fixed in the processing box (3), and the movable crushing shaft (42) is set on the side of the fixed crushing knife (41) for processing In the box body (3), 2-6 groups of dynamic crushing knives (43) are arranged on the said dynamic crushing shaft (42), and the processing box (3) on the right side of the said dynamic crushing shaft (42) is provided with material Leading to the material guide plate (45) below the fixed crushing knife (41), the outside right side of the processing box (3) is provided with a crushing motor (44), and the rotating shaft of the crushing motor (44) is connected to the moving crushing shaft ( 42) connected by transmission belt transmission. 4. A kind of coal crushing and grading equipment as claimed in claim 3, characterized in that: the fixed crushing knife (41) is composed of 6-20 fixed blades (411) arranged at intervals of 6-25cm, and the fixed blades ( 411) is V-shaped, and one end of the fixed blade (411) is welded on the inner wall of the processing box (3). 5. The coal crushing and grading equipment according to claim 4, characterized in that: the fixed crushing knife (41) is composed of 12 fixed blades (411) arranged at intervals of 20 cm. 6. A kind of coal crushing and grading equipment as claimed in claim 5, characterized in that: said dynamic crushing shaft (42) is provided with 3 groups of dynamic crushing knives (43), each group of dynamic crushing knives (43) The movable blades and the fixed blades (411) are arranged alternately, the movable blades are V-shaped, and the openings of the movable blades are opposite to the openings of the fixed blades (411). 7. A kind of coal crushing and grading equipment according to claim 1, characterized in that: the screening and grading part (5) includes a screening frame, a first material output conveyor belt (52), a first material output guide cylinder (53) , the second material output conveyor belt (55), the second material output guide cylinder (56), the third material output conveyor belt (57), the third material output guide cylinder (58), the discharge tray and the material output transmission motor (60) , the screening frame includes a first screening frame (51) and a second screening frame (54), the first screening frame (51) is located above the second screening frame (54), and the first screening frame (51) The right side of the lower part is provided with a first material output conveyor belt (52), and the processing box (3) on the right side of the first material output conveyor belt (52) is provided with a first material output guide cylinder (53) for outwardly outputting materials. A second material output conveyor belt (55) is provided on the right side of the bottom of the second screening frame (54), and a second material output conveyor belt (55) is provided on the right side of the second material output conveyor belt (55) on the processing box (3). Two material output guide cylinders (56), the third material output conveyor belt (57) is arranged on the processing box (3) below the second screening frame (54), and the right side of the third material output conveyor belt (57) is processed The box body (3) is provided with a third material output guide cylinder (58), and the bottom of the processing box body (3) below the third material output conveyor belt (57) is provided with a bottom discharge tray (59). The material tray (59) is provided with a discharge hole, and the material output transmission motor (60) is respectively connected with the screening discharge main shaft (513) on the first screening frame (51) and the second screening frame (54) through a transmission belt. Drive connection. 8. A kind of coal crushing and grading equipment according to claim 1, characterized in that: the first screening frame (51) includes a screening turntable (511), a screening filter rod (512) and a main rotating shaft for screening and discharging (513 ), the number of the screening turntables (511) is two, the screening filter rods (512) are arranged at a circular uniform interval between the screening turntables (511), and the outside of the screening turntables (511) is provided with a The main rotating shaft (513) for screening and unloading of the processing box (3) side, the second screening frame (54) is identical in structure with the first screening frame (51), and the screening filter rod on the second screening frame (54) The gap between (512) is smaller than the gap between the screening filter rods (512) on the first screening frame (51). 9. The coal crushing and grading equipment according to claim 3, characterized in that: the electric control box (6) is electrically connected to the crushing motor (44) through wires. 10. The coal crushing and grading equipment according to claim 7, characterized in that: the electric control box (6) is electrically connected to the material output and transmission motor (60) through wires.