Crushing device for nuclear power engineering construction

Abstract

The invention discloses a crushing device for nuclear power engineering construction, and relates to the technical field of constructional engineering crushing devices. The device comprises a machine body, a smashing roller set is rotationally installed in the machine body, the two ends of a plurality of fixing strips are fixedly installed on the inner wall of the machine body, and a movable screen is slidably installed on the upper surfaces of the fixing strips. Through the arrangement of the machine body, the crushing roller set, the fixing strip, the movable screen, the elastic piece and the spiral elevator, materials fall onto the surface of the movable screen after being crushed by the crushing roller set, the movable screen continuously shakes, the materials can be sorted more effectively, the materials meeting the particle size requirement fall, and the material sorting efficiency is improved. Materials which do not meet the particle size requirement are screened out; and the materials which do not meet the particle size requirement are lifted to the feeding port through the screw elevator for secondary smashing, the situation that the particle size of part of the materials does not meet the requirement due to non-uniform smashing of the materials is avoided, and the effect of improving the smashing work efficiency is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering crushing devices, and particularly to a crushing device for nuclear power engineering construction. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various building structures and their ancillary facilities and the installation of pipelines and equipment supporting them. Among them, "building structure" refers to a structure with a roof, beams, columns, walls, and a foundation that can form an internal space to meet the needs of people's production, residence, study, and public activities. During the demolition and construction process of construction engineering, a large amount of construction waste and broken bricks will be generated, which requires the use of a crushing device to crush and recycle them to achieve the purpose of resource recycling.

[0003] The patent with the patent publication number CN214717388U discloses a crushing device for construction engineering. The patent includes a machine body, a dust-proof mechanism, and a connecting member. The top of the machine body is provided with a feeding hopper, and a discharge port is opened on the side of the machine body. The dust-proof mechanism is installed on the feeding hopper to prevent dust from flying during the crushing process, and the connecting member is used to connect the feeding hopper and the dust-proof mechanism. This crushing device for nuclear power engineering construction solves the problem that dust is easily lifted and splashed during the use of the existing crushing device for nuclear power engineering construction. The device is easy to install and can prevent the internal dust of the crushing device from being blown to the outside during crushing without affecting feeding, reducing environmental pollution and damage to the health of workers, and facilitating people's use.

[0004] However, the existing crushing devices for nuclear power engineering construction have the following problems: During the crushing process of the crushing device for nuclear power engineering construction, due to uneven crushing effect, some materials cannot be crushed to the required particle size, resulting in uneven sizes of the materials after crushing, which may affect subsequent use. Therefore, we propose a crushing device for nuclear power engineering construction. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a crushing device for nuclear power engineering construction, which solves the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention is implemented through the following technical scheme: a pulverizing device for nuclear power engineering construction includes a body, characterized in that: a feed inlet is arranged on the top of the body, a discharge outlet is arranged on the bottom of the body, a pulverizing roller group is rotatably installed inside the body, two ends of the pulverizing roller group pass through and are rotatably connected to the inner wall of the body, the pulverizing roller group is provided with two pulverizing rollers, a plurality of protrusions are arranged on the surface of the pulverizing roller of the pulverizing roller group, a plurality of fixing bars are arranged below the pulverizing roller group, the two ends of a plurality of the fixing bars are fixedly installed on the inner wall of the body, a plurality of movable screens are slidably installed on the upper surfaces of the fixing bars, elastic sheets are fixedly connected on both sides of the movable screen, the end of the elastic sheet away from the movable screen is fixedly connected to the inner wall of the body, a square hole is opened on the outer wall of the rear side of the body, and the machine A hopper is fixedly installed inside the body, and the hopper is located below the movable screen. The movable screen is provided with a plurality of triangular screen bars, and the triangular screen bars of the movable screen are located on the movement trajectory of the protrusions on the surface of one of the crushing rollers of the crushing roller group. The crushing roller group is turned on, and the material to be crushed is put in from the feed port of the machine body, and the material is crushed by the crushing roller group. The crushed material passes through the movable screen and falls into the hopper. The material that cannot pass through the movable screen due to its large particle size is temporarily retained on the surface of the movable screen. During the rotation of the crushing roller group, the protrusions on the surface of one of the crushing rollers of the crushing roller group will contact the triangular screen bars on the surface of the movable screen, thereby moving the movable screen. When the protrusions on the surface of one of the crushing rollers of the crushing roller group do not contact the triangular screen bars on the surface of the movable screen, the movable screen is reset by the elastic force of the elastic sheet.

[0007] According to the above technical solution, a guide plate is fixedly connected below the square hole on the outer wall of the rear side of the machine body, and the guide plate is fixedly connected to a cylinder at one end away from the machine body. A spiral elevator is rotatably installed inside the cylinder, and the spiral elevator is driven by a motor. A feeding plate is fixedly installed on the top of the cylinder close to the side of the machine body, and the feeding plate is located above the feed port of the machine body. The movable screen continuously pushes the material temporarily retained on its surface toward the direction of the cylinder, and the material falls into the cylinder through the guide plate. The spiral elevator is driven by the motor to continuously rotate and lift the material to the feeding plate, and the material is fed into the feed port of the machine body through the feeding plate for secondary crushing.

[0008] According to the above technical solution, a vibration assembly is provided inside the machine body. The vibration assembly includes two cams, two upper connecting rods, a U-shaped frame, a T-shaped frame, a front connecting rod, a front vibrating rod, a rear connecting rod, and a rear vibrating rod. The two cams are respectively fixedly connected to the left ends of the two crushing rollers of the crushing roller group. The two upper connecting rods are respectively hinged to the outer walls of the two cams. The two ends of the U-shaped frame are respectively hinged to the ends of the two upper connecting rods away from the cams. The T-shaped frame is fixedly connected to the lower inner side of the U-shaped frame. The T-shaped frame penetrates and is slidably installed on the outer wall of the machine body. The front connecting rod is hinged to the end of the T-shaped frame away from the cylinder body. The front vibrating rod is hinged to the end of the front connecting rod away from the T-shaped frame. The rear connecting rod is hinged to the end of the T-shaped frame close to the cylinder body. The rear vibrating rod is hinged to the end of the rear connecting rod away from the T-shaped frame. Both ends of the front vibrating rod and the rear vibrating rod are slidably connected to the inner wall of the machine body. A number of striking convex balls are provided on the outer walls of the front vibrating rod and the rear vibrating rod on the side close to the hopper. The two crushing rollers of the crushing roller group drive the two cams to rotate respectively. The two cams drive the U-shaped frame to perform vertical reciprocating motion through the two upper connecting rods. Due to the T-shaped frame being limited by the outer wall of the machine body, the U-shaped frame drives the T-shaped frame to perform vertical reciprocating motion. Due to the front vibrating rod and the rear vibrating rod being limited by the inner wall of the machine body, the T-shaped frame drives the front vibrating rod to perform horizontal reciprocating motion through the front connecting rod, and the T-shaped frame drives the rear vibrating rod to perform horizontal reciprocating motion through the rear connecting rod. During the horizontal reciprocating motion of the front vibrating rod and the rear vibrating rod, a number of convex balls on the surfaces of the front vibrating rod and the rear vibrating rod will continuously strike the outer wall of the hopper to cause the hopper to vibrate.

[0009] According to the above technical solution, the vibration assembly further includes an L-shaped abutting rod and a push plate. The L-shaped abutting rod is fixedly connected to the outer wall below the middle of the rear vibrating rod. The push plate is fixedly connected to the end of the L-shaped abutting rod away from the rear vibrating rod. The push plate is slidably installed on the inner wall of the discharge port of the machine body. During the horizontal reciprocating motion of the rear vibrating rod, the L-shaped abutting rod is driven to perform horizontal reciprocating motion. The L-shaped abutting rod drives the push plate to perform horizontal reciprocating motion. During the horizontal reciprocating motion of the push plate, the materials falling from the hopper are continuously pushed out of the discharge port of the machine body.

[0010] According to the above technical scheme, a cleaning component is arranged inside the machine body, and the cleaning component includes a column, an airbag, a water tank, a water pipe, a baffle, a rotating pipe knot, and an atomizing nozzle. The column is fixedly connected to the lower surface of the T-frame, the airbag is fixedly connected to the lower end of the column, the water tank is fixedly installed on the lower surface of the airbag, the water pipe passes through and is fixedly installed on the upper surface of the water tank, the rotating pipe knot is rotatably installed on the upper end of the water pipe, and the atomizing nozzle is fixedly installed on the end of the rotating pipe knot away from the water pipe. The T-frame drives the column to perform vertical reciprocating motion, so that the column continuously squeezes the airbag downward, and the airbag inflates and pressurizes the inside of the water tank after squeezing. After the inside of the water tank is pressurized, water is discharged upward through the water pipe, and the water pipe transports water to the atomizing nozzle through the rotating pipe knot. The atomizing nozzle atomizes the water and sprays it on the inner wall of the hopper to clean the inner wall of the hopper. The baffle protects the atomizing nozzle to prevent the atomizing nozzle from being damaged by materials falling from above.

[0011] According to the above technical solution, the cleaning component also includes a force transmission rod, one end of which is fixedly connected to the outer wall of the front vibration rod, and the other end of the force transmission rod is provided with flat teeth. The outer wall below the rotating tube knot is provided with gear teeth, and the gear teeth of the rotating tube knot are meshed with the flat teeth of the force transmission rod. The front vibration rod drives the force transmission rod to perform horizontal reciprocating motion, and the force transmission rod drives the rotating tube knot to rotate through the flat teeth on its surface, and the rotating tube knot drives the atomizing nozzle to rotate, so that the atomizing nozzle can spray water to various parts of the inner wall of the hopper during the rotation process.

[0012] The present invention provides a crushing device for nuclear power engineering construction, which has the following beneficial effects: (1) The present invention arranges the machine body, the crushing roller group, the fixed bar, the movable screen and the elastic sheet so that the material falls onto the surface of the movable screen after being crushed by the crushing roller group. The movable screen is constantly shaken, which can more effectively sort the material, so that the material that meets the particle size requirements falls, and the material that does not meet the particle size requirements is screened out; through the material guide plate, the cylinder, the spiral elevator and the feeding plate, the material that does not meet the particle size requirements is lifted by the spiral elevator to the feed port for secondary crushing, thereby avoiding uneven crushing of the material resulting in the particle size of some materials not meeting the requirements, thereby achieving the effect of improving the crushing work efficiency.

[0013] (2) The present invention arranges a hopper, a crushing roller group, a cam, an upper connecting rod, a U-shaped frame, a T-shaped frame, a front connecting rod, a front vibrating rod, a rear connecting rod, and a rear vibrating rod, so that the hopper is continuously vibrated by the knocking of the front vibrating rod and the rear vibrating rod, so that the material inside the hopper falls faster; through the arrangement of an L-shaped resistance rod and a push plate, the push plate continuously pushes the material falling from the hopper out of the discharge port, thereby avoiding blockage caused by the untimely falling of the material inside the hopper, thereby affecting the crushing of subsequent materials, thereby achieving the effect of improving work efficiency.

[0014] (3) Through the settings of the T-shaped frame, the column, the airbag, the water tank, the water pipe, the baffle plate, the rotating pipe joint, and the atomizing nozzle, water can be continuously sprayed onto the inner wall of the hopper through the atomizing nozzle during the working process for cleaning; through the settings of the force transmission rod and the rotating pipe joint, the atomizing nozzle can spray water onto various parts of the inner wall of the hopper during rotation, thereby realizing the cleaning of various parts of the inner wall of the hopper, avoiding the accumulation of a large amount of material powder on the surface of the inner wall of the hopper after long-term use, which affects the use, and achieving the effect of extending the service life. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the whole left side of the present invention; Figure 2 It is a schematic diagram of the whole right side of the present invention; Figure 3 It is a schematic diagram of the partial structure of the present invention; Figure 4 It is a schematic diagram of the movable screen mesh of the present invention; Figure 5 It is a schematic diagram of the vibration assembly of the present invention Figure 6 It is a schematic diagram of the structure of the vibration assembly of the present invention; Figure 7 It is a schematic diagram of the cleaning assembly of the present invention; Figure 8 It is a schematic diagram of a partial structure of the cleaning assembly of the present invention.

[0016] In the figure: 1, the body; 2, the crushing roller group; 3, the cylinder; 4, the screw elevator; 5, the feeding plate; 6, the vibration assembly; 61, the cam; 62, the upper connecting rod; 63, the U-shaped frame; 64, the T-shaped frame; 65, the front connecting rod; 66, the front vibrating rod; 67, the rear connecting rod; 68, the rear vibrating rod; 69, the L-shaped abutting rod; 610, the pushing plate; 7, the cleaning assembly; 71, the column; 72, the airbag; 73, the water tank; 74, the water pipe; 75, the baffle plate; 76, the force transmission rod; 77, the rotating pipe joint; 78, the atomizing nozzle; 8, the fixing strip; 9, the movable screen mesh; 10, the elastic sheet; 11, the hopper; 12, the guide plate. Detailed Embodiment

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Please refer to Figure 1-4, an embodiment of the present invention is: a crushing device for nuclear power engineering construction includes a machine body 1. There is a feed inlet above the machine body 1, and a discharge outlet below the machine body 1. A crushing roller group 2 is rotatably installed inside the machine body 1. Both ends of the crushing roller group 2 penetrate and are rotatably connected to the inner wall of the machine body 1. The crushing roller group 2 is provided with two crushing rollers. The surface of the crushing rollers of the crushing roller group 2 is provided with a number of bumps. Below the crushing roller group 2, there are a number of fixing bars 8. Both ends of the number of fixing bars 8 are fixedly installed on the inner wall of the machine body 1. The upper surface of the number of fixing bars 8 is slidably installed with a movable sieve 9. Both sides of the movable sieve 9 are fixedly connected with elastic pieces 10. One end of the elastic piece 10 away from the movable sieve 9 is fixedly connected to the inner wall of the machine body 1. A square hole is opened on the outer wall at the rear of the machine body 1. A hopper 11 is fixedly installed inside the machine body 1. The hopper 11 is located below the movable sieve 9. The movable sieve 9 is provided with a number of triangular sieve bars. The triangular sieve bars of the movable sieve 9 are located on the movement track of the bumps on the surface of one of the crushing rollers of the crushing roller group 2. Through the setting of the above structure, the movable sieve 9 shakes continuously, which can more effectively sort the materials, make the materials that meet the particle size requirements fall, and screen out the materials that do not meet the particle size requirements.

[0019] A guide plate 12 is fixedly connected below the square hole on the outer wall at the rear of the machine body 1. One end of the guide plate 12 away from the machine body 1 is fixedly connected to a cylinder 3. A spiral elevator 4 is rotatably installed inside the cylinder 3. The spiral elevator 4 is driven by a motor. A feeding plate 5 is fixedly installed on one side of the top of the cylinder 3 close to the machine body 1. The feeding plate 5 is located above the feed inlet of the machine body 1. Through the setting of the above structure, the sorting and secondary crushing of the crushed materials are realized, avoiding the situation that the particle size of some materials does not meet the requirements due to uneven crushing of the materials, and achieving the effect of improving the crushing efficiency.

[0020] When in use, the crushing roller group 2 is turned on, and the material to be crushed is put into the feed port of the machine body 1. The material is crushed by the crushing roller group 2, and the crushed material passes through the movable screen 9 and falls into the hopper 11. The material that cannot pass through the movable screen 9 due to its large particle size is temporarily retained on the surface of the movable screen 9. During the rotation of the crushing roller group 2, the protrusion on the surface of one of the crushing rollers of the crushing roller group 2 will contact the triangular screen bars on the surface of the movable screen 9, thereby moving the movable screen 9. When the protrusion on the surface of one of the crushing rollers of the crushing roller group 2 does not contact the triangular screen bars on the surface of the movable screen 9, the movable screen 9 is affected by the elastic force of the elastic sheet 10 and After the material is reset, the movable screen 9 is continuously vibrated, which can sort the materials more effectively, so that the materials that meet the particle size requirements fall down, and the materials that do not meet the particle size requirements are screened out; the movable screen 9 continuously pushes the materials temporarily retained on its surface toward the cylinder 3, and the materials fall into the cylinder 3 through the guide plate 12. The spiral elevator 4 is driven by the motor to continuously rotate and lift the materials to the feeding plate 5. The materials are fed into the feeding port of the machine body 1 through the feeding plate 5 for secondary crushing, thereby realizing the sorting and secondary crushing of the crushed materials, avoiding the uneven crushing of the materials resulting in the particle size of some materials not meeting the requirements, and achieving the effect of improving the crushing efficiency.

[0021] See also Figure 1-7, on the basis of the above embodiments, in another embodiment of the present invention, a vibration assembly 6 is provided inside the machine body 1. The vibration assembly 6 includes two cams 61, two upper connecting rods 62, a U-shaped frame 63, a T-shaped frame 64, a front connecting rod 65, a front vibration rod 66, a rear connecting rod 67, and a rear vibration rod 68. The two cams 61 are respectively fixedly connected to the left ends of the two crushing rollers of the crushing roller group 2. The two upper connecting rods 62 are respectively hinged to the outer walls of the two cams 61. The two ends of the U-shaped frame 63 are respectively hinged to the ends of the two upper connecting rods 62 away from the cams 61. The T-shaped frame 64 is fixedly connected to the lower inner side of the U-shaped frame 63. The T-shaped frame 64 penetrates and is slidably installed on the outer wall of the machine body 1. The front connecting rod 65 is hinged to the end of the T-shaped frame 64 away from the cylinder body 3. The front vibration rod 66 is hinged to the end of the front connecting rod 65 away from the T-shaped frame 64. The rear connecting rod 67 is hinged to the end of the T-shaped frame 64 close to the cylinder body 3. The rear vibration rod 68 is hinged to the end of the rear connecting rod 67 away from the T-shaped frame 64. Both ends of the front vibration rod 66 and the rear vibration rod 68 are slidably connected to the inner wall of the machine body 1. A number of striking convex balls are provided on the outer walls of the front vibration rod 66 and the rear vibration rod 68 close to the hopper 11. The vibration assembly 6 further includes an L-shaped abutting rod 69 and a push plate 610. The L-shaped abutting rod 69 is fixedly connected to the outer wall below the middle of the rear vibration rod 68. The push plate 610 is fixedly connected to the end of the L-shaped abutting rod 69 away from the rear vibration rod 68. The push plate 610 is slidably installed on the inner wall of the discharge port of the machine body 1. Through the above structural arrangement, the hopper 11 is continuously vibrated to promote the falling of materials, and the push plate 610 continuously pushes the materials out of the discharge port, avoiding the blockage caused by the untimely falling of the materials inside the hopper 11, thus affecting the subsequent crushing of the materials, and achieving the effect of improving work efficiency.

[0022] A cleaning assembly 7 is provided inside the machine body 1. The cleaning assembly 7 includes a column 71, an airbag 72, a water tank 73, a water pipe 74, a baffle 75, a rotating pipe joint 77, and an atomizing nozzle 78. The column 71 is fixedly connected to the lower surface of the T-shaped frame 64. The airbag 72 is fixedly connected to the lower end of the column 71. The water tank 73 is fixedly installed on the lower surface of the airbag 72. The water pipe 74 penetrates and is fixedly installed on the upper surface of the water tank 73. The rotating pipe joint 77 is rotatably installed at one end of the water pipe 74. The atomizing nozzle 78 is fixedly installed at the end of the rotating pipe joint 77 away from the water pipe 74. The cleaning assembly 7 further includes a force transmission rod 76. One end of the force transmission rod 76 is fixedly connected to the outer wall of the front vibration rod 66. The other end of the force transmission rod 76 is provided with flat teeth. The outer wall below the rotating pipe joint 77 is provided with gear teeth. The gear teeth of the rotating pipe joint 77 are meshed with the flat teeth of the force transmission rod 76. Through the above structural arrangement, the atomizing nozzle 78 can spray water to various parts of the inner wall of the hopper 11 during the rotation process, thereby realizing the cleaning of various parts of the inner wall of the hopper 11, avoiding the accumulation of a large amount of material powder on the inner wall surface of the hopper 11 after long-term use, thus affecting the use, and achieving the effect of extending the service life.

[0023] During operation, the two crushing rollers of the crushing roller set 2 drive the two cams 61 to rotate respectively. The two cams 61 drive the U-shaped frame 63 to perform vertical reciprocating motion through the two upper connecting rods 62. Since the T-shaped frame 64 is limited by the outer wall of the machine body 1, the U-shaped frame 63 drives the T-shaped frame 64 to perform vertical reciprocating motion. Since the front vibrating rod 66 and the rear vibrating rod 68 are limited by the inner wall of the machine body 1, the T-shaped frame 64 drives the front vibrating rod 66 to perform horizontal reciprocating motion through the front connecting rod 65, and the T-shaped frame 64 drives the rear vibrating rod 68 to perform horizontal reciprocating motion through the rear connecting rod 67. During the horizontal reciprocating motion of the front vibrating rod 66 and the rear vibrating rod 68, several convex balls on the surfaces of the front vibrating rod 66 and the rear vibrating rod 68 will continuously impact the outer wall of the hopper 11, causing the hopper 11 to vibrate, so that the materials inside the hopper 11 fall faster; during the horizontal reciprocating motion of the rear vibrating rod 68, the L-shaped abutting rod 69 is driven to perform horizontal reciprocating motion, and the L-shaped abutting rod 69 drives the push plate 610 to perform horizontal reciprocating motion. During the horizontal reciprocating motion of the push plate 610, the materials falling from the hopper 11 are continuously pushed out of the discharge port of the machine body 1, thereby realizing that the hopper 11 continuously vibrates to promote the falling of the materials, and the push plate 610 continuously pushes the materials out of the discharge port, avoiding the blockage caused by the untimely falling of the materials inside the hopper 11, which affects the subsequent crushing of the materials, and achieving the effect of improving work efficiency.

[0024] The T-shaped frame 64 drives the column 71 to perform vertical reciprocating motion, so that the column 71 continuously presses down on the air bag 72. After being squeezed, the air bag 72 inflates and pressurizes the inside of the water tank 73. After the inside of the water tank 73 is pressurized, water is discharged upward through the water pipe 74. The water pipe 74 transports the water to the atomizing nozzle 78 through the rotating pipe joint 77. The atomizing nozzle 78 atomizes the water and sprays it on the inner wall of the hopper 11 to clean the inner wall of the hopper 11. The baffle 75 protects the atomizing nozzle 78 to prevent the atomizing nozzle 78 from being damaged by the materials falling from above; the front vibrating rod 66 drives the force transmission rod 76 to perform horizontal reciprocating motion. The force transmission rod 76 drives the rotating pipe joint 77 to rotate through the flat teeth on its surface, and the rotating pipe joint 77 drives the atomizing nozzle 78 to rotate, so that the atomizing nozzle 78 can spray water on all parts of the inner wall of the hopper 11 during the rotation process, thereby realizing the cleaning of all parts of the inner wall of the hopper 11, avoiding the accumulation of a large amount of material powder on the inner wall surface of the hopper 11 after long-term use, which affects the use, and achieving the effect of extending the service life.

[0025] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pulverizing device for nuclear power engineering construction, comprising a body (1), characterized in that: A feed inlet is arranged above the machine body (1), and a discharge outlet is arranged below the machine body (1). A crushing roller group (2) is rotatably mounted inside the machine body (1), and both ends of the crushing roller group (2) penetrate and are rotatably connected to the inner wall of the machine body (1). The crushing roller group (2) is provided with two crushing rollers, and a plurality of protrusions are arranged on the surface of the crushing roller of the crushing roller group (2). A plurality of fixing bars (8) are arranged below the crushing roller group (2), and both ends of the plurality of fixing bars (8) are fixedly mounted on the inner wall of the machine body (1). A movable screen (9) is slidably mounted on the upper surface of the plurality of fixing bars (8). Elastic sheets (10) are fixedly connected to both sides of the movable screen (9), and one end of the elastic sheet (10) away from the movable screen (9) is fixedly connected to the inner wall of the machine body (1). A square hole is opened on the outer wall of the rear side of the machine body (1). A hopper (11) is fixedly mounted inside the machine body (1), and the hopper (11) is located below the movable screen (9).

2. A pulverizing device for nuclear power engineering construction according to claim 1, characterized in that: A material guide plate (12) is fixedly connected below the square hole on the rear outer wall of the machine body (1); the material guide plate (12) is fixedly connected to a cylinder (3) at one end away from the machine body (1); a screw elevator (4) is rotatably installed inside the cylinder (3); the screw elevator (4) is driven by a motor; a feeding plate (5) is fixedly installed on the top of the cylinder (3) close to the machine body (1); the feeding plate (5) is located above the feeding port of the machine body (1).

3. A pulverizing device for nuclear power engineering construction according to claim 2, characterized in that: The movable screen (9) is provided with a plurality of triangular screen bars, and the triangular screen bars of the movable screen (9) are located on the movement track of a protrusion on the surface of one of the crushing rollers of the crushing roller group (2).

4. A pulverizing device for nuclear power engineering construction according to claim 3, characterized in that: A vibration assembly (6) is arranged inside the machine body (1), and the vibration assembly (6) comprises two cams (61), two upper connecting rods (62), a U-shaped frame (63), a T-shaped frame (64), a front connecting rod (65), a front vibration rod (66), a rear connecting rod (67), and a rear vibration rod (68). The two cams (61) are respectively fixedly connected to the left ends of the two crushing rollers of the crushing roller group (2), the two upper connecting rods (62) are respectively hinged to the outer walls of the two cams (61), and the two ends of the U-shaped frame (63) are respectively hinged to the two upper connecting rods (62). ) is located at an end away from the cam (61), the T-shaped frame (64) is fixedly connected to the lower inner side of the U-shaped frame (63), the T-shaped frame (64) penetrates and is slidably mounted on the outer wall of the machine body (1), the front connecting rod (65) is hinged to an end of the T-shaped frame (64) away from the cylinder (3), the front vibration rod (66) is hinged to an end of the front connecting rod (65) away from the T-shaped frame (64), the rear connecting rod (67) is hinged to an end of the T-shaped frame (64) close to the cylinder (3), and the rear vibration rod (68) is hinged to an end of the rear connecting rod (67) away from the T-shaped frame (64).

5. A pulverizing device for nuclear power engineering construction according to claim 4, characterized in that: Both ends of the front vibration rod (66) and the rear vibration rod (68) are slidably connected to the inner wall of the machine body (1), and a plurality of striking convex balls are provided on the outer walls of the front vibration rod (66) and the rear vibration rod (68) on the side close to the hopper (11).

6. A pulverizing device for nuclear power engineering construction according to claim 5, characterized in that: The vibration assembly (6) further comprises an L-shaped resistance rod (69) and a push plate (610), wherein the L-shaped resistance rod (69) is fixedly connected to the outer wall at the lower middle portion of the rear vibration rod (68), and the push plate (610) is fixedly connected to the end of the L-shaped resistance rod (69) away from the rear vibration rod (68), and the push plate (610) is slidably mounted on the inner wall of the discharge port of the machine body (1).

7. A pulverizing device for nuclear power engineering construction according to claim 6, characterized in that: A cleaning assembly (7) is arranged inside the machine body (1), and the cleaning assembly (7) comprises a column (71), an air bag (72), a water tank (73), a water pipe (74), a baffle (75), a rotating pipe knot (77), and an atomizing nozzle (78). The column (71) is fixedly connected to the lower surface of the T-shaped frame (64), the air bag (72) is fixedly connected to the lower end of the column (71), the water tank (73) is fixedly mounted on the lower surface of the air bag (72), the water pipe (74) penetrates and is fixedly mounted on the upper surface of the water tank (73), the rotating pipe knot (77) is rotatably mounted on the upper end of the water pipe (74), and the atomizing nozzle (78) is fixedly mounted on an end of the rotating pipe knot (77) away from the water pipe (74).

8. A pulverizing device for nuclear power engineering construction according to claim 7, characterized in that: The cleaning assembly (7) further comprises a force transmission rod (76), one end of which is fixedly connected to the outer wall of the front vibration rod (66), and the other end of which is provided with flat teeth. The outer wall below the rotating tube knot (77) is provided with gear teeth, and the gear teeth of the rotating tube knot (77) mesh with the flat teeth of the force transmission rod (76).

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