Coal crusher for thermal power generation

Abstract

The utility model discloses a coal crusher for thermal power generation, which comprises a coal crusher shell, two coal blocking blocks in bilateral symmetry are fixedly connected in the coal crusher shell, a rotating shaft is fixedly connected with two coal blocking plates in bilateral symmetry, and a first motor is in power connection with the rotating shaft. Two rotating shafts which are rotationally connected with the coal crusher shell and are in bilateral symmetry are arranged on the lower side of the coal blocking block, each rotating shaft is fixedly connected with coal crushing cutter wheels in opposite directions in a dynamic and static mode, a left second motor and a right second motor are fixedly connected to the rear end face of the coal crusher shell, the second motors are in power connection with the rotating shafts, and the second motors can drive the rotating shafts and the coal crushing cutter wheels to rotate; the first motor can drive the coal blocking plate to rotate so as to control opening and closing of the coal falling between the coal blocking blocks, so that the falling amount of the coal is controlled, blockage is avoided, the air pump can suck coal ash into the dust falling tank through the coal ash pipeline, and the amount of the coal ash in the coal is reduced.

Description

Technical Field

[0001] The utility model relates to the field of thermal power generation, in particular to a coal crusher for thermal power generation. Background Art

[0002] The coal used for thermal power generation needs to be properly crushed before use. Directly adding a large amount of coal into the coal crusher can easily lead to coal blockage. By setting a switch plate at the coal crushing point and properly controlling the amount of coal falling, the efficiency of the coal crusher can be improved. At the same time, more coal ash will be produced when the coal is crushed. The coal ash is pumped into the dust reduction tank through an air pump to reduce the ash content in the coal and improve the quality of the coal. Utility Model Content

[0003] The purpose of the utility model is to provide a coal crusher for thermal power generation to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal crusher for thermal power generation, comprising a coal crusher shell, wherein two left-right symmetrical coal blocking blocks are fixedly connected in the coal crusher shell, each of the coal blocking blocks is provided with a plate groove, a left-right symmetrical rotating shaft located in the plate groove is rotatably connected in the coal crusher shell, a coal blocking plate is fixedly connected to the rotating shaft, and the two coal blocking plates are symmetrical, a left-right motor groove is provided on the front end surface of the coal crusher shell, a first motor is fixedly connected in each of the motor grooves, the first motor is connected to the rotating shaft in power, two rotating shafts rotatably connected to the coal crusher shell and symmetrical in power are provided on the lower side of the coal blocking block, coal crushing wheels in opposite directions are fixedly connected to the two rotating shafts, and two left-right second motors are fixedly connected to the rear end surface of the coal crusher shell, and the second motor is connected to the rotating shaft in power;

[0005] Advantageously, the left side of the coal crusher housing is provided with a plurality of air inlet holes, the right side of the coal crusher housing is provided with a dust suction hole, the lower side of the coal crusher housing is provided with a bottom plate, the upper surface of the bottom plate is fixedly connected to an air pump, and the bottom plate and the dust suction hole on the right end surface of the coal crusher housing are fixedly connected to a coal ash pipe;

[0006] Advantageously, a dust suppression tank fixedly connected to the upper end surface of the bottom plate is provided on the right side of the air pump, a conveying pipeline is fixedly connected between the dust suppression tank and the air pump, and a dust filter plate is provided on the upper side of the dust suppression tank;

[0007] Advantageously, a coal discharge hole is provided at the lower side of the coal crusher housing, and a coal collecting tank fixedly connected to the upper end surface of the bottom plate is provided at the lower side of the coal discharge hole;

[0008] Advantageously, the upper surface of the bottom plate and the front and rear side walls of the coal crusher housing are fixedly connected with two support frames;

[0009] Advantageously, a controller is fixedly connected to the upper surface of the bottom plate, and the controller controls the motor and the air pump.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model is provided with a coal blocking block, a coal ash pipeline and a coal crushing knife wheel. The second motor can drive the rotating shaft and the coal crushing knife wheel to rotate, so as to crush the coal. The first motor can drive the coal blocking plate to rotate to control the switch of the coal falling from between the coal blocking blocks, so as to control the amount of coal falling and prevent blockage. The air pump can draw the coal ash into the dust suppression tank through the coal ash pipeline, so as to reduce the amount of coal ash in the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0013] Figure 2 for Figure 1 A top view of

[0014] Figure 3 for Figure 2 AA cross-sectional diagram of ;

[0015] Figure 4 for Figure 2 BB cross-sectional diagram;

[0016] Figure 5 for Figure 3 A partial enlarged schematic diagram of

[0017] Figure 6 for Figure 4 A partial enlarged schematic diagram of

[0018] Figure 7 It is a three-dimensional schematic diagram of the cross section of the coal crusher shell of the utility model;

[0019] Figure 8 It is a three-dimensional schematic diagram of the coal ash pipeline of the utility model.

[0020] In the figure: 100, bottom plate; 101, support frame; 102, coal crusher casing; 103, coal block; 104, coal block plate; 105, motor slot; 106, first motor; 107, coal collecting tank; 108, controller; 109, coal ash pipeline; 110, air pump; 111, dust suppression tank; 112, dust filter plate; 113, conveying pipeline; 114, coal discharge hole; 115, air inlet hole; 116, dust suction hole; 117, rotating shaft; 118, second motor; 120, coal crusher wheel; 121, plate slot; 122, rotating shaft. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-8 The utility model provides a technical solution: a coal crusher for thermal power generation, including a coal crusher shell 102, wherein two left-right symmetrical coal blocking blocks 103 are fixedly connected in the coal crusher shell 102, each of the coal blocking blocks 103 is provided with a plate groove 121, and a left-right symmetrical rotating shaft 122 located in the plate groove 121 is rotatably connected in the coal crusher shell 102, and a coal blocking plate 104 is fixedly connected to the rotating shaft 122, and the two coal blocking plates 104 are left-right symmetrical, and the front end surface of the coal crusher shell 102 is provided with left and right two The motor slots 105 are each fixedly connected with a first motor 106, and the first motor 106 is connected to the rotating shaft 122 by power. The lower side of the coal blocking block 103 is provided with two rotating shafts 117 that are rotatably connected to the coal crusher housing 102 and are symmetrical on the left and right. The two rotating shafts 117 are fixedly connected with coal crushing wheels 120 in opposite directions. The rear end surface of the coal crusher housing 102 is fixedly connected with two left and right second motors 118, and the second motors 118 are connected to the rotating shafts 117 by power.

[0024] A plurality of air inlet holes 115 are provided on the left side of the coal crusher housing 102, a dust suction hole 116 is provided on the right side of the coal crusher housing 102, a bottom plate 100 is provided on the lower side of the coal crusher housing 102, an air pump 110 is fixedly connected to the upper end surface of the bottom plate 100, and a coal ash pipe 109 is fixedly connected to the dust suction hole 116 on the right end surface of the coal crusher housing 102;

[0025] A dust suppression tank 111 fixedly connected to the upper end surface of the bottom plate 100 is provided on the right side of the air pump 110, a conveying pipeline 113 is fixedly connected between the dust suppression tank 111 and the air pump 110, and a dust filter plate 112 is provided on the upper side of the dust suppression tank 111;

[0026] A coal discharge hole 114 is provided at the lower side of the coal crusher housing 102, and a coal collecting tank 107 fixedly connected to the upper end surface of the bottom plate 100 is provided at the lower side of the coal discharge hole 114;

[0027] The upper end surface of the bottom plate 100 and the front and rear side walls of the coal crusher housing 102 are fixedly connected with two support frames 101;

[0028] A controller 108 is fixedly connected to the upper end surface of the bottom plate 100 , and the controller 108 controls the motor and the air pump 110 .

[0029] Working principle:

[0030] In the initial state, the two coal blocking plates 104 are pressed against each other to close the passage for the coal to fall. When the coal needs to be crushed, the coal is first poured between the coal blocking blocks 103;

[0031] Then, the second motor 118 is started first through the controller 108, and the second motor 118 drives the two rotating shafts 117 to rotate, and the rotating shafts 117 drive the two coal crushing wheels 120 to rotate. At the same time, the air pump 110 is started through the controller 108, and the air pump 110 sucks the air in the coal crusher housing 102 from the dust suction hole 116 into the dust reduction tank 111, and then discharges it upward from the dust filter plate 112. When there is coal ash, the coal ash will be sucked into the dust reduction tank 111 through the dust suction hole 116 and the coal ash pipe 109, and the coal ash will be blocked in the dust reduction tank 111 by the dust filter plate 112 when it is discharged from the dust filter plate 112, and the air enters the coal crusher housing 102 from the air inlet hole 115;

[0032] Finally, the first motor 106 is started through the controller 108, and the first motor 106 drives the rotating shaft 122 to rotate, and the rotating shaft 122 drives the coal blocking plate 104 to rotate. The amount of coal falling is controlled by controlling the rotation angle of the coal blocking plate 104, so as to prevent coal blockage. After the coal is crushed by the coal crushing wheel 120, it falls into the coal collecting tank 107 from the coal discharge hole 114 for collection.

[0033] It is obvious to those skilled in the art that various modifications and variations may be made to the disclosed embodiments. Other embodiments will be readily apparent to those skilled in the art in view of the specification and practice of the disclosed system. It is intended that the specification and examples be considered exemplary only, with the true scope of protection being determined by the appended claims and their equivalents.

Claims

1. A coal crusher for thermal power generation, comprising a coal crusher housing (102), characterized in that: Two left-right symmetrical coal blocking blocks (103) are fixedly connected in the coal crusher housing (102), each of the coal blocking blocks (103) is provided with a plate groove (121), a left-right symmetrical rotating shaft (122) located in the plate groove (121) is rotatably connected in the coal crusher housing (102), a coal blocking plate (104) is fixedly connected to the rotating shaft (122), the two coal blocking plates (104) are left-right symmetrical, and two left-right motor grooves (105) are provided on the front end surface of the coal crusher housing (102), each of the motor grooves (105) A first motor (106) is fixedly connected inside the coal crusher housing (102), and the first motor (106) is dynamically connected to the rotating shaft (122). Two rotating shafts (117) which are rotatably connected to the coal crusher housing (102) and are symmetrical on the left and right are provided on the lower side of the coal blocking block (103). The two rotating shafts (117) are fixedly connected to coal crushing wheels (120) in opposite directions. The rear end surface of the coal crusher housing (102) is fixedly connected to two second motors (118) on the left and right, and the second motors (118) are dynamically connected to the rotating shafts (117).

2. A coal crusher for thermal power generation according to claim 1, characterized in that: A plurality of air inlet holes (115) are provided on the left side of the coal crusher housing (102), a dust suction hole (116) is provided on the right side of the coal crusher housing (102), a bottom plate (100) is provided on the lower side of the coal crusher housing (102), an air pump (110) is fixedly connected to the upper end surface of the bottom plate (100), and a coal ash pipe (109) is fixedly connected between the bottom plate (100) and the dust suction hole (116) on the right end surface of the coal crusher housing (102).

3. A coal crusher for thermal power generation according to claim 2, characterized in that: A dust suppression tank (111) fixedly connected to the upper end surface of the bottom plate (100) is provided on the right side of the air pump (110), a conveying pipeline (113) is fixedly connected between the dust suppression tank (111) and the air pump (110), and a dust filter plate (112) is provided on the upper side of the dust suppression tank (111).

4. A coal crusher for thermal power generation according to claim 3, characterized in that: A coal discharge hole (114) is provided at the lower side of the coal crusher housing (102), and a coal collecting tank (107) fixedly connected to the upper end surface of the bottom plate (100) is provided at the lower side of the coal discharge hole (114).

5. A coal crusher for thermal power generation according to claim 4, characterized in that: The upper end surface of the bottom plate (100) and the front and rear side walls of the coal crusher housing (102) are fixedly connected with two support frames (101).

6. A coal crusher for thermal power generation according to claim 5, characterized in that: A controller (108) is fixedly connected to the upper end surface of the bottom plate (100).

Images