A grate cooling device for cement production from all waste slag
By designing a dynamic crushing structure and a circulating pump suction system in the all-waste cement production process, the problems of material blockage and dust generation were solved, thereby improving production efficiency and environmental protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DAY CAN CEMENT CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-14
AI Technical Summary
In the process of cement production from waste residue, large pieces of material can easily clog the crushing components of the grate cooler, leading to shutdowns, affecting operating rate and production efficiency. At the same time, dust is generated during feeding and crushing, polluting the environment and causing material waste.
Design a cement grate cooling device made entirely of waste residue. The device uses an electric motor to drive a rotating shaft to rotate a square rod. The periodic contact between the top rod and the inclined ring causes the crushing seat to reciprocate axially with the assistance of a spring, forming a dynamic crushing structure. A circulating pump and an air inlet are installed at the feed inlet to suck up dust.
It enhances the shearing and crushing effect of cement clinker, prevents large pieces of material from clogging the machine, avoids downtime, and promptly removes dust, reducing environmental pollution and material waste.
Smart Images

Figure CN224499142U_ABST
Abstract
Description
Technical Field
[0001] This solution belongs to the field of cement grate coolers, specifically involving a cement grate cooling device made entirely from waste residue. Background Technology
[0002] A grate cooler is a type of rapid cooling cooler. After the clinker enters the cooler from the kiln, it is laid in a layer of a certain thickness on the grate. Cold air is blown in and passes through the moving material layer on the grate in a direction perpendicular to each other, so that the clinker is rapidly cooled. It can cool the clinker from 1300-1400℃ to below 100℃ in a few minutes.
[0003] A search revealed that a utility model patent with authorization announcement number CN208998571U discloses a grate cooling device for cement processing, comprising a grate cooler, a support plate welded to the right side of the lower end face of the grate cooler, a support plate welded to the left side of the lower end face of the grate cooler, a reducing pipe installed on the lower end face of the grate cooler by bolts, a quenching fan installed at the lower end of the reducing pipe by bolts, and a dust cover installed on the lower end face of the grate cooler by bolts.
[0004] In existing technologies, especially in the process of producing cement from all waste residue, large pieces of material can easily clog the crushing components of the grate cooler, causing downtime and affecting the overall operating rate and production efficiency of the grate cooler. At the same time, dust is generated during the feeding and crushing process, which not only pollutes the on-site environment but also causes a certain degree of material waste. Utility Model Content
[0005] The purpose of this solution is to provide a grate cooling device for cement production using all-waste residue, in order to solve the problem that in existing technologies, especially in the process of cement production using all-waste residue, large pieces of material can easily clog the crusher components of the grate cooler, causing downtime and affecting the overall operating rate and production efficiency of the grate cooler. At the same time, it also solves the problem that dust is generated during the feeding and crushing process, which not only pollutes the on-site environment but also causes a certain degree of material waste.
[0006] To achieve the above objectives, this solution provides a grate cooling device for cement made entirely from waste residue, including a grate cooler housing. A feed inlet is connected to the upper left side of the grate cooler housing. A circulating pump is fixedly installed on the upper right side of the feed inlet. The output end of the circulating pump is connected to the grate cooler housing, and the input end of the circulating pump is connected to the feed inlet. A ring pipe is fixedly connected to the end of the input end, and an air inlet is connected to the bottom of the ring pipe. A fixed seat is fixedly connected to the middle of the inner wall of the feed inlet. Multiple support rods are fixedly connected to the lower inner side of the feed inlet. These support rods are all fixedly connected to a support seat. A motor is fixedly installed at the upper end of the support seat. A rotating shaft is fixedly connected to the end of the output shaft of the motor. A crushing seat is slidably sleeved on the outside of the rotating shaft. The crushing seat is located inside the fixed seat. A square rod is fixedly connected to the top of the rotating shaft, and the square rod is slidably connected to the crushing seat.
[0007] The principle of this solution is as follows: During use, the material is added through the feed inlet and guided by the guide hood to the space between the fixed seat and the crushing seat. Then, the motor drives the rotating shaft to rotate the square rod. With the periodic contact between the top rod and the inclined ring, the crushing seat generates axial reciprocating motion under the assistance of the spring, forming a dynamic crushing structure. This design not only enhances the shearing and crushing effect on cement clinker, but also prevents large pieces of material from clogging the machine and avoiding downtime. At the same time, during the feeding and crushing process, the circulating pump, ring pipe, and air inlet can promptly suck up the dust and then transport it to the grate cooling plate in the grate cooler casing through the connecting pipe. In this way, the impact of dust on the site environment is reduced, and material waste is avoided.
[0008] The technical advantage of this solution is that the electric motor drives the rotating shaft to rotate the square rod, which, together with the periodic contact between the top rod and the inclined ring, causes the crushing seat to reciprocate axially under the assistance of the spring, forming a dynamic crushing structure. This design not only enhances the shearing and crushing effect on cement clinker, but also prevents large pieces of material from clogging the machine and avoids downtime.
[0009] By installing a circulating pump at the feed inlet, the output end of the circulating pump is connected to the grate cooler housing through a connecting pipe and is located above the grate cooling plate inside the grate cooler housing. The input end of the circulating pump is connected to the feed inlet, and a ring pipe with an air inlet is installed at the input end. In this way, dust can be drawn in time during the feeding and material crushing process, which not only reduces the impact of dust on the on-site environment, but also avoids material waste.
[0010] Furthermore, the number of air inlets is multiple, and these multiple air inlets are distributed in a ring array along the circumference of the annular pipe. By setting multiple air inlets, the air intake efficiency of the annular pipe can be increased.
[0011] Furthermore, multiple fixing rods are fixedly connected to the upper part of the inner wall of the feed inlet, and a flow guide shroud is fixedly connected to these multiple fixing rods. The narrow opening of the flow guide shroud is located inside the annular tube, which can guide the added material.
[0012] Furthermore, a beveled ring is fixedly connected to the bottom of the crushing seat, and a push rod is fixedly connected to the upper end of the support seat. The arc end of the push rod abuts against the beveled surface of the beveled ring. Through the cooperation of the push rod and the beveled ring, the crushing seat can be periodically subjected to an upward thrust.
[0013] Furthermore, a pad is fixedly connected to the upper end of the support base, and a ball bearing is provided on the top of the pad, which abuts against the crushing base. The pad and the ball bearing provide auxiliary support for the crushing base.
[0014] Furthermore, a spring is fitted onto the outer side of the square rod. One end of the spring is fixedly connected to the rotating shaft, and the other end is fixedly connected to the inner surface of the crushing seat. The spring provides auxiliary repositioning for the crushing seat.
[0015] Furthermore, the crushing seat is equipped with a second set of ball bearings, which are slidably connected to the rotating shaft. The inclusion of the second set of ball bearings reduces the relative friction between the crushing seat and the rotating shaft. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.
[0017] Figure 2 This is an embodiment of the present utility model. Figure 1 A partial structural diagram;
[0018] Figure 3 This is an embodiment of the present utility model. Figure 1 A front sectional view;
[0019] Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified view of the local structure;
[0020] Figure 5 This is an embodiment of the present utility model. Figure 4 Enlarged view of point A.
[0021] The following detailed explanation illustrates the specific implementation methods:
[0022] The reference numerals in the accompanying drawings include: 1. Grate cooler housing; 2. Feed inlet; 3. Circulating pump; 4. Connecting pipe; 5. Ring pipe; 6. Air inlet; 7. Fixing rod; 8. Flow guide; 9. Fixing seat; 10. Support rod; 11. Supporting seat; 12. Motor; 13. Rotating shaft; 14. Crushing seat; 15. Inclined ring; 16. Top rod; 17. Pad; 18. Ball bearing one; 19. Square rod; 20. Spring; 21. Ball bearing two. Detailed Implementation
[0023] The basic implementation examples are as follows: Figures 1-5 The diagram shows a grate cooling device for cement produced entirely from waste residue. It includes a grate cooler housing 1. A feed inlet 2 is connected to the upper left side of the grate cooler housing 1. A circulating pump 3 is fixedly installed on the upper right side of the feed inlet 2. The output end of the circulating pump 3 is connected to the grate cooler housing 1, and the input end of the circulating pump 3 is connected to the feed inlet 2. A ring pipe 5 is fixedly connected to the end of the input end. Multiple air inlets 6 are connected to the bottom of the ring pipe 5 and are arranged in a ring array along the circumference of the ring pipe 5. The multiple air inlets 6 increase the air intake efficiency of the ring pipe 5. Multiple fixing rods 7 are fixedly connected to the upper inner wall of the feed inlet 2, and a guide shroud 8 is fixedly connected to all the fixing rods 7. The narrow opening of the guide shroud 8 is located inside the ring pipe 5, thus guiding the added material.
[0024] like Figure 4 As shown, a fixed seat 9 is fixedly connected to the middle of the inner wall of the feed inlet 2. Multiple support rods 10 are fixedly connected to the lower inner side of the feed inlet 2. These support rods 10 are all fixedly connected to a support base 11. A motor 12 is fixedly mounted on the upper end of the support base 11. A rotating shaft 13 is fixedly connected to the end of the output shaft of the motor 12. A crushing seat 14 is slidably sleeved on the outside of the rotating shaft 13. The crushing seat 14 is located inside the fixed seat 9. A square rod 19 is fixedly connected to the top of the rotating shaft 13, and the square rod 19 is slidably connected to the crushing seat 14. A inclined ring 15 is fixedly connected to the bottom of the crushing seat 14. A push rod 16 is fixedly connected to the upper end of the support base 11. The arc end of the push rod 16 abuts against the inclined surface of the inclined ring 15. Through the cooperation of the push rod 16 and the inclined ring 15, the crushing seat 14 can be periodically subjected to an upward thrust.
[0025] like Figure 4 , Figure 5As shown, a pad 17 is fixedly connected to the upper end of the support base 11. A ball bearing 18 is provided on the top of the pad 17, and the ball bearing 18 abuts against the crushing seat 14. The pad 17 and the ball bearing 18 provide auxiliary support for the crushing seat 14. A spring 20 is sleeved on the outer side of the square rod 19. One end of the spring 20 is fixedly connected to the rotating shaft 13, and the other end of the spring 20 is fixedly connected to the inner surface of the crushing seat 14. The spring 20 provides auxiliary resetting for the crushing seat 14. A second ball bearing 21 is provided inside the crushing seat 14, and the second ball bearing 21 is slidably connected to the rotating shaft 13. The second ball bearing 21 reduces the relative friction between the crushing seat 14 and the rotating shaft 13.
[0026] The specific implementation process of this utility model is as follows: During use, the material is added through the feed inlet 2 and guided by the guide hood 8 to the space between the fixed seat 9 and the crushing seat 14. Then, the motor 12 drives the rotating shaft 13 to rotate the square rod 19. With the periodic contact between the top rod 16 and the inclined ring 15, the crushing seat 14 generates axial reciprocating motion under the assistance of the spring 20, forming a dynamic crushing structure. This design not only enhances the shearing and crushing effect on cement clinker, but also prevents large pieces of material from clogging and avoiding downtime. At the same time, during the feeding and crushing process, the circulating pump 3, the ring pipe 5, and the air inlet 6 can timely suck up the dust and then transport it to the grate cooling plate in the grate cooler housing 1 through the connecting pipe 4. In this way, the impact of dust on the site environment is reduced, and material waste is avoided.
[0027] This design uses a motor 12 to drive a rotating shaft 13 to rotate a square rod 19. Combined with the periodic contact between the top rod 16 and the inclined ring 15, the crushing seat 14 reciprocates axially with the assistance of a spring 20, forming a dynamic crushing structure. This design not only enhances the shearing and crushing effect on cement clinker, but also prevents large pieces of material from clogging the machine and avoids downtime.
[0028] By setting a circulation pump 3 at the feed inlet 2, the output end of the circulation pump 3 is connected to the grate cooler housing 1 through the connecting pipe 4 and is located above the grate cooling plate in the grate cooler housing 1. The input end of the circulation pump 3 is connected to the feed inlet 2, and a ring pipe 5 with an air inlet 6 is set at the input end. In this way, dust can be drawn in time during the feeding and material crushing process, which not only reduces the impact of dust on the on-site environment, but also avoids material waste.
[0029] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A grate cooling device for cement produced entirely from waste residue, comprising a grate cooler casing, characterized in that: A feed inlet is connected to the upper left side of the grate cooler housing. A circulation pump is fixedly installed on the upper right side of the feed inlet. The output end of the circulation pump is connected to the grate cooler housing, and the input end of the circulation pump is connected to the feed inlet. A ring pipe is fixedly connected to the end of the input end, and an air inlet is connected to the bottom of the ring pipe. A fixed seat is fixedly connected to the middle of the inner wall of the feed inlet. Multiple support rods are fixedly connected to the lower inner side of the feed inlet. The multiple support rods are all fixedly connected to a support seat. A motor is fixedly installed at the upper end of the support seat. A rotating shaft is fixedly connected to the end of the output shaft of the motor. A crushing seat is slidably sleeved on the outside of the rotating shaft. The crushing seat is located inside the fixed seat. A square rod is fixedly connected to the top of the rotating shaft, and the square rod is slidably connected to the crushing seat.
2. The all-waste cement grate cooling device according to claim 1, characterized in that: The number of air inlets is set to multiple, and the multiple air inlets are distributed in a ring array along the circumference of the ring pipe.
3. The all-waste cement grate cooling device according to claim 1, characterized in that: Multiple fixing rods are fixedly connected to the upper part of the inner wall of the feed inlet, and a flow guide is fixedly connected to the multiple fixing rods.
4. The all-waste cement grate cooling device according to claim 1, characterized in that: The bottom of the crushing seat is fixedly connected to an inclined ring, and the upper end of the support seat is fixedly connected to a top rod, the arc end of the top rod abutting against the inclined surface of the inclined ring.
5. The all-waste cement grate cooling device according to claim 1, characterized in that: A pad is fixedly connected to the upper end of the support base, and a ball bearing is provided on the top of the pad bearing, which abuts against the crushing seat.
6. The all-waste cement grate cooling device according to claim 1, characterized in that: A spring is fitted on the outer side of the square rod. One end of the spring is fixedly connected to the rotating shaft, and the other end of the spring is fixedly connected to the inner surface of the crushing seat.
7. The all-waste cement grate cooling device according to claim 1, characterized in that: The crushing seat is equipped with a second ball bearing, which is slidably connected to the rotating shaft.