Raw material crushing device for cement production
By designing the synergistic operation of the feed cylinder, feeding assembly, crushing assembly, and processing assembly, the problems of uneven raw material particle size and dust pollution in traditional cement production equipment have been solved, achieving efficient and environmentally friendly raw material crushing and processing, and improving cement production efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional cement production raw material crushing equipment has a simple structure and cannot perform fine processing. The crushed raw materials have uneven particle size, generate a lot of dust, pollute the environment and endanger health.
A crushing device comprising a feed cylinder, a feeding assembly, a crushing assembly, and a processing assembly was designed. Through the coordinated operation of a vibrating motor, a screen plate, a crushing roller, an auger, and a spray pipe, the device achieves uniform conveying, fine crushing, and dust suppression of raw materials.
It improves raw material processing efficiency and particle size uniformity, reduces dust pollution, lowers production energy consumption and environmental protection costs, and enhances cement product quality.
Smart Images
Figure CN224100798U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of raw material crushing device for cement production especially relates to a raw material crushing device for cement production. BACKGROUND
[0002] Cement is an indispensable basic material in modern construction industry, and its production process involves multiple complex links, and raw material crushing is a key pre-process of cement production. Cement production raw materials usually include limestone, clay, iron ore and the like, the initial form of these raw materials is different in size, and the hardness is relatively high, if effective crushing treatment is not carried out, not only the efficiency and quality of subsequent grinding process will be affected, but also production energy consumption will increase, and production cost will rise.
[0003] Traditional cement production raw material crushing devices are mostly single structure, only have simple crushing function, cannot finely process raw materials, the particle size of raw materials crushed by part of the devices is uneven, it is difficult to meet the strict requirements of subsequent production process on the particle size of raw materials, a large amount of dust will be generated in the running process, not only pollutes the production environment, but also endangers the health of operating personnel. With the increasingly strict environmental protection requirements and the continuous pursuit of product quality and production efficiency in cement production industry, developing a kind of efficient, environmentally friendly and realizing raw material fine processing crushing device becomes an urgent problem to be solved in the industry. SUMMARY
[0004] In view of the defects of the prior art, the utility model provides a raw material crushing device for cement production, solves the problems that traditional cement production raw material crushing devices are mostly single structure, only have simple crushing function, cannot finely process raw materials, the particle size of raw materials crushed by part of the devices is uneven, it is difficult to meet the strict requirements of subsequent production process on the particle size of raw materials, a large amount of dust will be generated in the running process, not only pollutes the production environment, but also endangers the health of operating personnel.
[0005] To solve the above technical problems, the utility model provides the following technical scheme: a raw material crushing device for cement production, including the cylinder, the cylinder is provided with connecting mechanism, the connecting mechanism includes the feeding assembly arranged in the cylinder, the feeding assembly is connected with the processing assembly, the processing assembly upper section is provided with the crushing assembly;
[0006] The processing assembly comprises a fixing frame, a vibration motor is fixedly installed on the top of the fixing frame, a sieve plate is fixedly installed in the vibration motor, a half-barrel-shaped bottom box is arranged at the bottom of the fixing frame, a second motor is fixedly installed at the left end of the half-barrel-shaped bottom box, a connecting roller is fixedly connected to the output end of the second motor, a screw conveyor is fixedly installed on the outer wall of the connecting roller, a communication pipe is communicated at the left end of the half-barrel-shaped bottom box, a spraying pipe is communicated at one end in the communication pipe, and a collecting box is communicated at the bottom of the half-barrel-shaped bottom box.
[0007] Further improvement lies in that the feeding assembly comprises a receiving bottom plate fixedly connected to the bottom of the barrel, a support frame is fixedly connected to the bottom of the receiving bottom plate, a driving rotating plate is fixedly installed on the inner wall of the barrel, and a rotating bottom plate is fixedly connected to the outer wall of the driving rotating plate.
[0008] Further improvement lies in that the crushing assembly comprises a connecting frame, a connecting frame is fixedly connected to the top of the connecting frame, a top box is fixedly installed on the top of the connecting frame, a first motor is fixedly installed at the left end of the top box, a crushing roller is fixedly connected to the output end of the first motor, and guide plates are fixedly connected to the top of the inner wall of the top box.
[0009] Further improvement lies in that the fixing frame is fixedly connected to the inner wall of the connecting frame, the half-barrel-shaped bottom box is fixedly installed on the inner wall of the connecting frame, the rotating bottom plate fixedly connected to the outer wall of the driving rotating plate rotates synchronously, and the rotating roller fixedly connected to the top of the rotating bottom plate rotates, which can preliminarily stir and push the raw materials and make the raw materials move downward more uniformly.
[0010] Further improvement lies in that the bottom of the barrel is communicated with the top of the left end of the communication pipe, and the rotating roller is rotatably connected to the inner cavity of the barrel; the cooperation between the rotating roller and the wall of the inner cavity of the barrel effectively avoids the accumulation of the raw materials at the bottom of the barrel and ensures that the raw materials can continuously and stably pass through the top of the left end of the communication pipe communicated with the bottom of the barrel and enter the subsequent processing link.
[0011] Further improvement lies in that the crushing roller is rotatably connected to the inner wall of the top box, the guide plates fixedly connected to the top of the inner wall of the top box guide the raw materials entering the top box, so that the raw materials can accurately enter the crushing area of the crushing roller, and the crushing roller can crush the large raw materials into small particles through the strong extrusion force and shearing force generated by high-speed rotation.
[0012] Further improvement lies in that the spraying pipe is fixedly installed on the inner wall of the connecting frame; the screw conveyor conveys the raw material particles falling into the half-barrel-shaped bottom box during rotation, so that the raw material particles move to the left end of the half-barrel-shaped bottom box; and the spraying pipe communicated at one end in the communication pipe communicated at the left end of the half-barrel-shaped bottom box sprays water mist to the raw materials during the conveying of the raw materials.
[0013] By the above technical scheme, the utility model provides a raw material crushing device for cement production, at least has following beneficial effect:
[0014] 1, the utility model discloses the rotation roller and drive rotation board in feeding assembly cooperate operation, ensure that raw material uniform, stable conveying, avoid jamming, the crushing roller in crushing assembly is driven under motor, and raw material is carried out powerful crushing, and the vibration motor and screen plate in processing component carry out screening to the raw material after crushing, and the raw material of granularity that meets the requirement enters subsequent flow, and the unqualified continues to handle.This layer by layer progressive processing mode, the production interruption phenomenon is greatly reduced, improves raw material processing efficiency, guarantees the uniformity of raw material granularity after crushing simultaneously, provides high -quality raw material for subsequent cement production process, improves the overall quality of cement product.
[0015] 2, the utility model discloses in raw material processing process, and the device has good environmental protection performance.Spraying pipe in processing component sprays water mist in raw material conveying process, can effectively inhibit the generation and diffusion of dust, reduces the dust pollution in production environment, guarantees the health of operating personnel, and also meets the increasingly strict environmental protection requirement.In addition, the device reduces the energy waste due to raw material blockage, crushing insufficient and other problems through reasonable structure design and component cooperation, reduces the energy consumption in production process, realizes green environmental protection production, saves the environmental protection management cost and energy cost for enterprise, improves the sustainable development ability of enterprise. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.
[0017] In the drawings:
[0018] Figure 1 It is the whole structure schematic diagram of the utility model;
[0019] Figure 2 It is the inclined side structure schematic diagram of the utility model;
[0020] Figure 3 It is the back side structure schematic diagram of the utility model;
[0021] Figure 4 It is the local enlarged structure schematic diagram of the utility model.
[0022] In the figure: 1, the barrel; 2, connecting mechanism; 21, feeding assembly; 211, support frame; 212, receiving bottom plate; 213, rotating bottom plate; 214, drive rotating plate; 215, rotating roller; 216, top plate; 22, crushing assembly; 221, connecting frame; 222, top box; 223, motor one; 224, guide plate; 225, crushing roller; 23, processing assembly; 231, fixed frame; 232, vibration motor; 233, sieve plate; 234, semi-barrel-shaped bottom box; 235, motor two; 236, connecting roller; 237, auger; 238, communication pipe; 239, spray pipe; 2310, collection box. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] Embodiment 1
[0025] The traditional cement production raw material crushing device is mostly single structure, only has simple crushing function, cannot finely process the raw material, the particle size of the raw material crushed by part of the device is uneven, it is difficult to meet the strict requirement of the subsequent production process on the particle size of the raw material, a large amount of dust is generated in the running process, not only pollutes the production environment, but also harms the health of the operator, the embodiment provides a raw material crushing device for cement production, please refer to Figures 1-4 , the embodiment provides a raw material crushing device for cement production, which comprises a barrel 1, the barrel 1 is provided with a connecting mechanism 2, the connecting mechanism 2 comprises a feeding assembly 21 arranged on the barrel 1, the feeding assembly 21 is connected with a processing assembly 23, and the processing assembly 23 is provided with a crushing assembly 22 at the upper segment; the processing assembly 23 comprises a fixed frame 231, the fixed frame 231 is fixedly installed with a vibration motor 232 at the top, the vibration motor 232 is fixedly installed with a sieve plate 233 on the inner side, the fixed frame 231 is provided with a semi-barrel-shaped bottom box 234 at the bottom, the semi-barrel-shaped bottom box 234 is fixedly installed with a motor two 235 at the left end, the motor two 235 is fixedly connected with a connecting roller 236 at the output end, the connecting roller 236 is fixedly installed with an auger 237 on the outer wall, the semi-barrel-shaped bottom box 234 is provided with a communication pipe 238 at the left end, the communication pipe 238 is provided with a spray pipe 239 at one end on the inner side, and the semi-barrel-shaped bottom box 234 is provided with a collection box 2310 at the bottom.
[0026] In the embodiment, the processing assembly 23 is installed on the inner side wall of the connecting frame 221, wherein the vibration motor 232 fixedly installed at the top of the fixed frame 231 is the key for the processing assembly 23 to achieve fine processing; when the crushed raw materials enter the inside of the fixed frame 231, the vibration motor 232 is started to drive the sieve plate 233 inside the fixed frame 231 to vibrate at high frequency; the vibration of the sieve plate 233 can make the raw materials jump and move on its surface constantly, and the raw material particles smaller than the sieve hole size of the sieve plate 233 will fall through the sieve hole and enter the semi-barrel-shaped bottom box 234 below; and the raw material particles larger than the sieve hole size will continue to vibrate on the sieve plate 233 until they are crushed or screened out by vibration; the motor two 235 at the left end of the semi-barrel-shaped bottom box 234 is started, and the connecting roller 236 fixedly connected at the output end of the motor two 235 drives the auger 237 fixedly installed on the outer wall to rotate; the auger 237 transports the raw material particles falling into the semi-barrel-shaped bottom box 234 during the rotation process, so that the raw material particles move to the left end of the semi-barrel-shaped bottom box 234; the spray pipe 239 communicated at one end inside the communication pipe 238 communicated at the left end of the semi-barrel-shaped bottom box 234 sprays water mist to the raw materials during the transportation process of the raw materials; the spraying of the water mist can not only wet the raw materials to meet the requirements of the subsequent production process on the humidity of the raw materials, but also can effectively suppress the dust generated in the transportation process of the raw materials to play an environmental protection role; the raw materials after the wetting treatment are further transported through the communication pipe 238 and finally collected through the collecting box 2310 communicated at the bottom of the semi-barrel-shaped bottom box 234, so as to complete the whole raw material crushing process.
[0027] Further, the fixed frame 231 is fixedly connected to the inner side wall of the connecting frame 221, and the semi-barrel-shaped bottom box 234 is fixedly installed on the inner side wall of the connecting frame 221; the spray pipe 239 is fixedly installed on the inner side wall of the connecting frame 221.
[0028] Further, when the crushed raw materials enter the inside of the fixed frame 231, the vibration motor 232 is started to drive the sieve plate 233 inside the fixed frame 231 to vibrate at high frequency; the vibration of the sieve plate 233 can make the raw materials jump and move on its surface constantly, and the raw material particles smaller than the sieve hole size of the sieve plate 233 will fall through the sieve hole and enter the semi-barrel-shaped bottom box 234 below; and the raw material particles larger than the sieve hole size will continue to vibrate on the sieve plate 233 until they are crushed or screened out by vibration; the motor two 235 at the left end of the semi-barrel-shaped bottom box 234 is started, and the connecting roller 236 fixedly connected at the output end of the motor two 235 drives the auger 237 fixedly installed on the outer wall to rotate.
[0029] Embodiment 2
[0030] On the basis of embodiment 1, the feeding assembly 21 comprises a receiving bottom plate 212 fixedly connected to the bottom of the barrel 1, the bottom of the receiving bottom plate 212 is fixedly connected with a support frame 211, the inner wall of the barrel 1 is fixedly installed with a driving rotating plate 214, the outer wall of the driving rotating plate 214 is fixedly connected with a rotating bottom plate 213, the top of the rotating bottom plate 213 is fixedly connected with a rotating roller 215 in a circumferential manner; the crushing assembly 22 comprises a connecting frame 221, the top of the connecting frame 221 is fixedly connected with a connecting frame 221, the top of the connecting frame 221 is fixedly installed with a top box 222, the left end of the top box 222 is fixedly installed with a motor one 223, the output end of the motor one 223 is fixedly connected with a crushing roller 225, the top and bottom ends of the inner wall of the top box 222 are fixedly connected with a guide plate 224.
[0031] In this embodiment, the feeding assembly 21 plays a role in stabilizing the feeding in the cement production raw material crushing device; the barrel 1 serves as an initial storage space for the raw materials, and the bottom is fixedly connected with the support frame 211 through the receiving bottom plate 212, which provides a stable support foundation for the entire device; when the raw materials are put into the barrel 1, the driving rotating plate 214 at the bottom of the inner wall of the barrel 1 starts to rotate under the driving of the power; the rotating bottom plate 213 fixedly connected with the outer wall of the driving rotating plate 214 will synchronously rotate, and the rotating roller 215 fixedly connected with the top of the rotating bottom plate 213 in a circumferential manner will, during the rotating process, on the one hand, preliminarily stir and push the raw materials, so that the raw materials can move more uniformly downwards; on the other hand, the cooperation between the rotating roller 215 and the inner cavity wall of the barrel 1 effectively avoids the accumulation of the raw materials at the bottom of the barrel 1, and ensures that the raw materials can continuously and stably pass through the left end top of the communicating pipe 238 connected with the bottom of the barrel 1, and enter the subsequent processing link; the raw materials pass through the communicating pipe 238 and enter the crushing assembly 22; the connecting frame 221 in the crushing assembly 22 provides a stable installation frame for the entire crushing structure, and the top fixedly connected with the top box 222 has core crushing components installed inside; after the motor one 223 at the left end of the top box 222 is started, the crushing roller 225 fixedly connected with the output end starts to rotate at a high speed; the guide plate 224 fixedly connected with the top and bottom ends of the inner wall of the top box 222 plays a guiding role in the raw materials entering the top box 222, so that the raw materials can accurately enter the crushing area of the crushing roller 225; the crushing roller 225 breaks the large raw materials into smaller particles through the strong extrusion force and shear force generated by the high-speed rotation; during the crushing process, the guide plate 224 continuously guides the raw materials to the crushing roller 225, so as to ensure that the raw materials can be fully crushed, and to improve the crushing efficiency and crushing quality; the crushed raw materials fall from the bottom of the top box 222 under the action of their own gravity, and enter the processing assembly 23 for further processing.
[0032] Further, the bottom of the barrel 1 is connected with the left end top of the communicating pipe 238, and the rotating roller 215 is rotatably connected in the inner cavity of the barrel 1; the crushing roller 225 is rotatably connected with the inner wall of the top box 222.
[0033] Further, the material cylinder 1 is the initial storage space of the raw material, and the bottom is fixedly connected with the support frame 211 through the receiving bottom plate 212, which provides a stable support foundation for the whole device; when the raw material is put into the material cylinder 1, the driving rotating plate 214 at the bottom of the inner wall of the material cylinder 1 starts to rotate under the power driving; the rotating bottom plate 213 fixedly connected with the outer wall of the driving rotating plate 214 will synchronously rotate, and the rotating roller 215 fixedly connected with the top circumference of the rotating bottom plate 213 rotates, on the one hand, to preliminarily stir and push the raw material, so that the raw material can move downward more uniformly; on the other hand, the cooperation of the rotating roller 215 and the inner cavity wall of the material cylinder 1 effectively avoids the accumulation of the raw material at the bottom of the material cylinder 1, and ensures that the raw material can continuously and stably pass through the left top of the communication pipe 238 connected with the bottom of the material cylinder 1, and enter the subsequent processing link; the raw material passes through the communication pipe 238 and enters the crushing assembly 22; the connecting frame 221 in the crushing assembly 22 provides a stable installation frame for the whole crushing structure, and the top box 222 fixedly connected with the top of the connecting frame 221 is internally provided with a core crushing component; after the motor one 223 at the left end of the top box 222 is started, the crushing roller 225 fixedly connected with the output end of the motor one 223 starts to rotate at high speed.
[0034] Working principle: in the cement production raw material crushing device, the feeding assembly 21 plays a role in stabilizing the feeding; the material cylinder 1 is the initial storage space of the raw material, and the bottom is fixedly connected with the support frame 211 through the receiving bottom plate 212, which provides a stable support foundation for the whole device; when the raw material is put into the material cylinder 1, the driving rotating plate 214 at the bottom of the inner wall of the material cylinder 1 starts to rotate under the power driving; the rotating bottom plate 213 fixedly connected with the outer wall of the driving rotating plate 214 will synchronously rotate, and the rotating roller 215 fixedly connected with the top circumference of the rotating bottom plate 213 rotates, on the one hand, to preliminarily stir and push the raw material, so that the raw material can move downward more uniformly; on the other hand, the cooperation of the rotating roller 215 and the inner cavity wall of the material cylinder 1 effectively avoids the accumulation of the raw material at the bottom of the material cylinder 1, and ensures that the raw material can continuously and stably pass through the left top of the communication pipe 238 connected with the bottom of the material cylinder 1, and enter the subsequent processing link;
[0035] The raw materials enter the crushing assembly 22 through the communication pipe 238; the connecting frame 221 in the crushing assembly 22 provides a stable mounting frame for the entire crushing structure, and the core crushing components are mounted in the inside of the top box 222 fixedly connected to the top of the connecting frame 221; after the motor one 223 at the left end of the top box 222 is started, the crushing roller 225 fixedly connected to the output end of the motor one 223 starts to rotate at high speed; the guide plate 224 fixedly connected to the top inside wall of the top box 222 at the front and rear ends can guide the raw materials entering the top box 222, so that the raw materials can accurately enter the crushing area of the crushing roller 225; the crushing roller 225 can crush the large raw materials into smaller particles through the strong extrusion force and shear force generated by high-speed rotation; during the crushing process, the guide plate 224 continuously guides the raw materials to the crushing roller 225, so that the raw materials can be fully crushed, and the crushing efficiency and crushing quality are improved; the crushed raw materials fall from below the top box 222 under the action of gravity and enter the processing assembly 23 for further processing;
[0036] The processing assembly 23 is mounted on the inside wall of the connecting frame 221, and the vibration motor 232 fixedly installed at the top of the fixed frame 231 is the key to realize fine processing of the processing assembly 23; after the crushed raw materials enter the inside of the fixed frame 231, the vibration motor 232 is started to drive the sieve plate 233 in the fixed frame 231 to vibrate at high frequency; the vibration of the sieve plate 233 can make the raw materials jump and move on the surface of the sieve plate 233, and the raw material particles smaller than the sieve hole size of the sieve plate 233 can fall through the sieve hole and fall into the semi-barrel-shaped bottom box 234 below; and the raw material particles larger than the sieve hole size will continue to vibrate on the sieve plate 233 until they are crushed or screened out by vibration; after the motor two 235 at the left end of the semi-barrel-shaped bottom box 234 is started, the connecting roller 236 fixedly connected to the output end of the motor two 235 drives the auger 237 fixedly installed on the outer wall to rotate; the auger 237 conveys the raw material particles falling into the semi-barrel-shaped bottom box 234 during rotation, so that they move to the left end of the semi-barrel-shaped bottom box 234; the spray pipe 239 connected to the inside of the communication pipe 238 at one end of the left end of the semi-barrel-shaped bottom box 234 sprays water mist to the raw materials during the conveying process; the spraying of water mist can not only wet the raw materials to meet the moisture requirements of the subsequent production process, but also effectively suppress the dust generated during the conveying of the raw materials, playing an environmental protection role; the raw materials after wetting treatment are continuously conveyed through the communication pipe 238 and finally collected through the collecting box 2310 connected to the bottom of the semi-barrel-shaped bottom box 234, completing the entire raw material crushing and processing process;
[0037] In summary, the cement production raw material crushing device realizes efficient crushing, fine screening and environmental protection treatment of the cement production raw materials through the cooperation of the feeding assembly 21, the crushing assembly 22 and the processing assembly 23, effectively improves the efficiency and quality of cement production, and reduces environmental pollution in the production process.
[0038] It should be noted that, in this document, the terms "comprise", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not limited to those elements, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.
[0039] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.
Claims
1. A raw material crushing device for cement production, comprising a feed cylinder (1), characterized in that: The material cylinder (1) is provided with a connecting mechanism (2), the connecting mechanism (2) includes a feeding component (21) provided in the material cylinder (1), the feeding component (21) is connected to a processing component (23), and a crushing component (22) is provided on the upper section of the processing component (23); The processing component (23) includes a fixed frame (231), a vibration motor (232) is fixedly installed on the top of the fixed frame (231), a sieve plate (233) is fixedly installed inside the vibration motor (232), a semi-barrel-shaped bottom box (234) is provided at the bottom of the fixed frame (231), a second motor (235) is fixedly installed at the left end of the semi-barrel-shaped bottom box (234), a connecting roller (236) is fixedly connected to the output end of the second motor (235), an auger (237) is fixedly installed on the outer wall of the connecting roller (236), a connecting pipe (238) is connected to the left end of the semi-barrel-shaped bottom box (234), a spray pipe (239) is connected to one end of the inner side of the connecting pipe (238), and a collection box (2310) is connected to the bottom of the semi-barrel-shaped bottom box (234).
2. The raw material crushing device for cement production according to claim 1, characterized in that: The feeding assembly (21) includes a receiving base plate (212) fixedly connected to the bottom of the material cylinder (1), a support frame (211) fixedly connected to the bottom of the receiving base plate (212), a drive rotating plate (214) fixedly installed on the bottom of the inner wall of the material cylinder (1), a rotating base plate (213) fixedly connected to the outer wall of the drive rotating plate (214), and a rotating roller (215) fixedly connected to the top circumference of the drive rotating plate (214).
3. The raw material crushing device for cement production according to claim 1, characterized in that: The crushing assembly (22) includes a connecting frame (221), the top of which is fixedly connected to the connecting frame (221), and a top box (222) is fixedly installed on the top of the connecting frame (221). A motor (223) is fixedly installed on the left end of the top box (222), and a crushing roller (225) is fixedly connected to the output end of the motor (223). A guide plate (224) is fixedly connected to the front and rear ends of the top of the inner wall of the top box (222).
4. The raw material crushing device for cement production according to claim 1, characterized in that: The fixing frame (231) is fixedly connected to the inner outer wall of the connecting frame (221), and the semi-barrel-shaped bottom box (234) is fixedly installed on the inner outer wall of the connecting frame (221).
5. A raw material crushing device for cement production according to claim 2, characterized in that: The bottom of the material cylinder (1) is connected to the top of the left end of the connecting pipe (238), and the rotating roller (215) is rotatably connected to the inner cavity of the material cylinder (1).
6. A raw material crushing device for cement production according to claim 3, characterized in that: The crushing roller (225) is rotatably connected to the inner wall of the top box (222).
7. A raw material crushing device for cement production according to claim 1, characterized in that: The spray pipe (239) is fixedly installed on the inner outer wall of the connecting frame (221).