Secondary ring hammer crusher
By designing a two-stage ring hammer crusher with a primary and secondary shell arranged vertically, the problem that existing ring hammer crushers cannot directly crush to 10mm was solved, enabling direct coal combustion in the furnace and reducing processes and costs.
Patent Information
- Application Number
- CN202520122774.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing ring hammer crushers cannot directly crush coal to a particle size of 10mm, requiring additional equipment, which increases the process and cost, and the equipment occupies a large area.
A two-stage ring hammer crusher comprising an upper and lower arranged primary shell and a secondary shell was designed. The primary and secondary rotor assemblies respectively crush coal to particle sizes of 30mm and 10mm, reducing processes and costs.
This allows for direct coal combustion in the furnace, reducing the number of processes and equipment required, and lowering costs.
Smart Images
Figure CN223915517U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushing devices, specifically to a two-stage ring hammer crusher. Background Technology
[0002] A ring hammer crusher is a coal crushing device that crushes coal by striking it with ring hammers.
[0003] When existing ring hammer crushers crush coal, the minimum particle size can be 30mm. The crushed coal must then be sent to other equipment for further crushing to a particle size of 10mm before it can be fed into the furnace for combustion. This increases the number of processes and costs, reduces crushing efficiency, and requires two expensive pieces of equipment that occupy a large area. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a two-stage ring hammer crusher that can crush coal to 10mm and can be directly fed into the furnace for combustion, thereby reducing the number of processes and costs.
[0005] The purpose of this utility model is achieved as follows:
[0006] It consists of a primary shell and a secondary shell arranged vertically. The lower end of the primary shell and the upper end of the secondary shell are connected together by bolts. The top of the primary shell has a coal inlet, and the bottom of the primary shell is open, that is, the bottom of the primary shell is the primary discharge port. The top and bottom of the secondary shell are both open structures, and the bottom of the secondary shell is the secondary discharge port.
[0007] The first-stage rotor assembly is installed in the first-stage housing, and the second-stage rotor assembly is installed in the second-stage housing. The first-stage rotor assembly and the second-stage rotor assembly have the same structure.
[0008] The primary rotor assembly and the secondary rotor assembly both include a main shaft. End plates are fixed to the left and right ends of the main shaft. Several approximately rhomboid partitions are fixed to the main shaft between the two end plates. The partitions are alternately arranged in the horizontal and vertical directions. Each partition has ring hammer shaft holes at both ends. The centers of the two ring hammer shaft holes are located on the axial center line of the partition, meaning the two ring hammer shaft holes of the same partition are on the same straight line. Four ring hammer shafts are also provided. Two ring hammer shafts pass sequentially through the corresponding ring hammer shaft holes of the horizontally arranged partitions, and their left and right ends are connected to the left and right end plates, respectively. The other two ring hammer shafts pass sequentially through the corresponding ring hammer shaft holes of the vertically arranged partitions, and their left and right ends are connected to the left and right end plates, respectively. Ring hammers are installed on each ring hammer shaft between the two partitions.
[0009] It also includes primary bearing seats that are bolted to the left and right sides of the primary housing, and secondary bearing seats that are bolted to the left and right sides of the secondary housing. It also includes a primary motor and a secondary motor, with the primary motor located above the secondary motor.
[0010] The main shaft of the first stage rotor assembly extends from the left and right side plates of the first stage housing. The left and right ends of the main shaft of the first stage rotor assembly are respectively fitted with bearings in the two first stage bearing seats. The right end of the main shaft of the first stage rotor assembly extends from the first stage bearing seat located on the right side of the first stage housing and is connected to the output shaft of the first stage motor through a coupling.
[0011] The main shaft of the secondary rotor assembly extends from the left and right side plates of the secondary housing at both ends. The main shaft of the secondary rotor assembly is installed with bearings in the two secondary bearing seats at both ends. The right end of the main shaft of the secondary rotor assembly extends from the secondary bearing seat located on the right side of the secondary housing and is connected to the output shaft of the secondary motor through a coupling.
[0012] The operation of the primary and secondary motors can drive the primary and secondary rotor assemblies to work.
[0013] The primary housing houses a primary crushing plate assembly located on the side of the primary rotor assembly. The primary crushing plate assembly includes a primary crushing plate frame, with a rotating shaft fixed to its upper part. The rotating shaft is rotatably connected to the primary housing. The primary crushing plates are bolted to the side of the primary crushing plate frame facing the primary rotor assembly. The primary crushing plates gradually incline from top to bottom towards the primary rotor assembly, i.e., the primary crushing plates are inclined. A vertical elongated hole is provided at the lower part of the primary crushing plate frame. A pin at the front end of the primary adjusting seat is installed in the vertical elongated hole at the lower part of the primary crushing plate frame to connect the primary adjusting seat and the primary crushing plate frame. A threaded hole is provided at the rear of the primary adjusting seat. The primary housing has a hole corresponding to the position of the primary adjusting seat. A primary adjusting screw extends from the hole in the primary housing and is threaded into the threaded hole of the primary adjusting seat.
[0014] The secondary housing houses a secondary crushing plate assembly located on the side of the secondary rotor assembly. The secondary crushing plate assembly includes a secondary crushing plate frame, with a rotating shaft fixed to its upper part. The shaft is rotatably connected to the secondary housing. The secondary crushing plates are bolted to the side of the secondary crushing plate frame facing the secondary rotor assembly. The upper half of the secondary crushing plate gradually slopes towards the secondary rotor assembly from top to bottom, i.e., the upper half of the secondary crushing plate is inclined. The lower half of the secondary crushing plate is arc-shaped, with a distance between the edge of the arc-shaped section and the longitudinal centerline of the main shaft of the secondary rotor assembly. The lower half of the secondary crushing plate frame has a vertical elongated hole. A pin at the front end of the secondary adjustment seat is installed in the vertical elongated hole at the lower part of the secondary crushing plate frame to connect the secondary adjustment seat and the secondary crushing plate frame. The rear part of the secondary adjustment seat has a threaded hole. The secondary housing has a hole at the corresponding position of the secondary adjustment seat. The secondary adjustment screw extends from the hole in the secondary housing and is threaded into the threaded hole of the secondary adjustment seat.
[0015] The advantages of this invention are: coal enters the primary shell from the coal inlet at the top of the primary shell, the primary rotor assembly works, crushing large pieces of coal to a particle size of 30mm, and then falls from the primary shell into the secondary shell, where the secondary rotor assembly continues to crush the coal to a particle size of 10mm. The coal crushed by this device can be directly fed into the furnace for combustion, thereby reducing processes and costs, and reducing the floor space required. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 yes Figure 1 AA view. Detailed Implementation
[0018] The following is combined with Figure 1 and Figure 2 The present invention will be further described below;
[0019] It includes a primary shell 1 and a secondary shell 2 arranged vertically. The lower end of the primary shell and the upper end of the secondary shell are connected together by bolts. The top of the primary shell has a coal inlet 3, and the bottom of the primary shell is open, that is, the bottom of the primary shell is the primary discharge port. The top and bottom of the secondary shell are both open structures, and the bottom of the secondary shell is the secondary discharge port.
[0020] The first-stage rotor assembly is installed in the first-stage housing, and the second-stage rotor assembly is installed in the second-stage housing. The first-stage rotor assembly and the second-stage rotor assembly have the same structure.
[0021] The primary rotor assembly and the secondary rotor assembly both include a main shaft 4. End plates 5 are fixed to the left and right ends of the main shaft, respectively. Several approximately rhomboid partitions 6 are fixed on the main shaft between the two end plates. The partitions are arranged alternately in the horizontal and vertical directions. Each partition has ring hammer shaft holes at both ends. The centers of the two ring hammer shaft holes are located on the axial center line of the partition, that is, the two ring hammer shaft holes of the same partition are on the same straight line. There are also four ring hammer shafts 7. Two ring hammer shafts pass through the corresponding ring hammer shaft holes of the horizontally arranged partitions in sequence, and their left and right ends are connected to the left and right end plates, respectively. The other two ring hammer shafts pass through the corresponding ring hammer shaft holes of the vertically arranged partitions in sequence, and their left and right ends are connected to the left and right end plates, respectively. Ring hammers 8 are installed on each ring hammer shaft between the two partitions.
[0022] It also includes a primary bearing seat 9 that is bolted to the left and right sides of the primary housing, and a secondary bearing seat 10 that is bolted to the left and right sides of the secondary housing, as well as a primary motor 11 and a secondary motor 12, with the primary motor located above the secondary motor.
[0023] The main shaft of the first stage rotor assembly extends from the left and right side plates of the first stage housing. The left and right ends of the main shaft of the first stage rotor assembly are respectively fitted with bearings in the two first stage bearing seats. The right end of the main shaft of the first stage rotor assembly extends from the first stage bearing seat located on the right side of the first stage housing and is connected to the output shaft of the first stage motor through a coupling.
[0024] The main shaft of the secondary rotor assembly extends from the left and right side plates of the secondary housing at both ends. The main shaft of the secondary rotor assembly is installed with bearings in the two secondary bearing seats at both ends. The right end of the main shaft of the secondary rotor assembly extends from the secondary bearing seat located on the right side of the secondary housing and is connected to the output shaft of the secondary motor through a coupling.
[0025] The operation of the primary and secondary motors can drive the primary and secondary rotor assemblies to work.
[0026] The primary housing houses a primary crushing plate assembly located on the side of the primary rotor assembly. The primary crushing plate assembly includes a primary crushing plate frame 13, with a rotating shaft 14 fixed to its upper part. The rotating shaft is rotatably connected to the primary housing. Primary crushing plates 15 are bolted to the side of the primary crushing plate frame facing the primary rotor assembly. The primary crushing plates gradually tilt downwards towards the primary rotor assembly, i.e., the primary crushing plates are inclined. A vertical elongated hole 16 is provided at the lower part of the primary crushing plate frame. A pin at the front end of a primary adjusting seat 17 is installed in the vertical elongated hole at the lower part of the primary crushing plate frame to connect the primary adjusting seat and the primary crushing plate frame. A threaded hole is provided at the rear of the primary adjusting seat. The primary housing has a hole corresponding to the position of the primary adjusting seat. A primary adjusting screw 18 extends from the hole in the primary housing and is threaded into the threaded hole of the primary adjusting seat. Tightening the primary adjusting screw moves the primary adjusting seat, thereby changing the inclination angle of the primary crushing plate assembly.
[0027] A secondary crushing plate assembly is housed within the secondary housing, located on the side of the secondary rotor assembly. This assembly includes a secondary crushing plate frame 19, with a rotating shaft fixed to its upper part. The shaft is rotatably connected to the secondary housing. Secondary crushing plates 20 are bolted to the side of the frame facing the secondary rotor assembly. The upper half of each secondary crushing plate gradually slopes downwards towards the secondary rotor assembly; the lower half is arc-shaped, with the arc-shaped end edge (away from the inclined section)... There is a distance between the end of the secondary crushing plate frame and the longitudinal center line of the main shaft of the secondary crushing plate assembly; the lower half of the secondary crushing plate frame is provided with a vertical elongated hole, and the pin at the front end of the secondary adjusting seat 21 is installed in the vertical elongated hole at the lower part of the secondary crushing plate frame to realize the connection between the secondary adjusting seat and the secondary crushing plate frame. The rear part of the secondary adjusting seat is provided with a threaded hole, and the secondary housing is provided with a hole at the position corresponding to the secondary adjusting seat. The secondary adjusting screw 22 extends from the hole of the secondary housing and is threaded into the threaded hole of the secondary adjusting seat. Tightening the secondary adjusting screw can make the secondary adjusting seat move and thus change the tilt angle of the secondary crushing plate assembly.
[0028] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A two-stage ring hammer crusher, comprising a primary shell (1) and a secondary shell (2) arranged vertically, wherein the lower end of the primary shell and the upper end of the secondary shell are connected together by bolts, the top of the primary shell has a coal inlet (3), and the bottom of the primary shell is open, i.e., the bottom of the primary shell is the primary discharge port; the top and bottom of the secondary shell are both open structures, and the bottom of the secondary shell is the secondary discharge port; its characteristic is: The first-stage rotor assembly is installed in the first-stage housing, and the second-stage rotor assembly is installed in the second-stage housing. The first-stage rotor assembly and the second-stage rotor assembly have the same structure. The primary rotor assembly and the secondary rotor assembly both include a main shaft (4), with end plates (5) fixed at the left and right ends of the main shaft, and several approximately rhomboid partitions (6) fixed on the main shaft between the two end plates. The partitions are arranged alternately in the horizontal and vertical directions. Each partition has ring hammer shaft holes at both ends, and the centers of the two ring hammer shaft holes are located on the axial center line of the partition, that is, the two ring hammer shaft holes of the same partition are on the same straight line. There are also four ring hammer shafts (7), of which two ring hammer shafts pass through the corresponding ring hammer shaft holes of each horizontally arranged partition in sequence, and their left and right ends are connected to the left and right end plates respectively. The other two ring hammer shafts pass through the corresponding ring hammer shaft holes of each vertically arranged partition in sequence, and their left and right ends are connected to the left and right end plates respectively. Ring hammers (8) are installed on each ring hammer shaft between the two partitions. The primary housing contains a primary crushing plate assembly located on the side of the primary rotor assembly. The primary crushing plate assembly includes a primary crushing plate frame (13), with a rotating shaft (14) fixed to the upper part of the primary crushing plate frame. The rotating shaft is rotatably connected to the primary housing. The primary crushing plate (15) is bolted to the side of the primary crushing plate frame facing the primary rotor assembly. The primary crushing plate gradually tilts towards the primary rotor assembly from top to bottom, i.e., the primary crushing plate is inclined. The lower part of the primary crushing plate frame has a vertical elongated hole (16). The pin at the front end of the primary adjusting seat (17) is installed in the vertical elongated hole at the lower part of the primary crushing plate frame to realize the connection between the primary adjusting seat and the primary crushing plate frame. The rear part of the primary adjusting seat has a threaded hole. The primary housing has a hole at the position corresponding to the primary adjusting seat. The primary adjusting screw (18) extends from the hole of the primary housing and is threaded into the threaded hole of the primary adjusting seat. A secondary crushing plate assembly is provided inside the secondary housing. The secondary crushing plate assembly is located on the side of the secondary rotor assembly. The secondary crushing plate assembly includes a secondary crushing plate frame (19). A rotating shaft is fixed to the upper part of the secondary crushing plate frame and is rotatably connected to the secondary housing. The secondary crushing plate (20) is bolted to the side of the secondary crushing plate frame facing the secondary rotor assembly. The upper half of the secondary crushing plate gradually tilts towards the secondary rotor assembly from top to bottom, that is, the upper half of the secondary crushing plate is inclined; the lower half of the secondary crushing plate... The secondary crushing plate is arc-shaped, and there is a distance between the edge of the arc-shaped section of the secondary crushing plate and the longitudinal center line of the main shaft of the secondary rotor assembly. The lower half of the secondary crushing plate frame is provided with a vertical elongated hole. The pin at the front end of the secondary adjusting seat (21) is installed in the vertical elongated hole at the lower part of the secondary crushing plate frame to realize the connection between the secondary adjusting seat and the secondary crushing plate frame. The rear part of the secondary adjusting seat is provided with a threaded hole. The secondary housing is provided with a hole at the position corresponding to the secondary adjusting seat. The secondary adjusting screw (22) extends from the hole of the secondary housing and is threaded into the threaded hole of the secondary adjusting seat.
2. The two-stage ring hammer crusher according to claim 1, characterized in that: It also includes a primary bearing housing (9) connected to the left and right sides of the primary housing by bolts, and a secondary bearing housing (10) connected to the left and right sides of the secondary housing by bolts, and a primary motor (11) and a secondary motor (12), with the primary motor located above the secondary motor; The main shaft of the first stage rotor assembly extends from the left and right side plates of the first stage housing. The left and right ends of the main shaft of the first stage rotor assembly are respectively fitted with bearings in the two first stage bearing seats. The right end of the main shaft of the first stage rotor assembly extends from the first stage bearing seat located on the right side of the first stage housing and is connected to the output shaft of the first stage motor through a coupling. The main shaft of the secondary rotor assembly extends from the left and right side plates of the secondary housing at both ends. The main shaft of the secondary rotor assembly is installed with bearings in the two secondary bearing seats at both ends. The right end of the main shaft of the secondary rotor assembly extends from the secondary bearing seat located on the right side of the secondary housing and is connected to the output shaft of the secondary motor through a coupling.