Raw material impurity removal device for cement grinding aid production
By introducing a magnetic rod and filter screen as a cleaning mechanism into the cement grinding aid production unit, the problem of inconvenient cleaning of iron filings and wood chips in the existing unit has been solved, ensuring the quality and effectiveness of the cement grinding aid.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU RENAI CONSTR TECH DEV CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
Existing raw material removal devices for cement grinding aid production are inconvenient for cleaning iron filings and wood chips remaining in the device after removal, which affects the effectiveness of cement grinding aids.
A debris removal mechanism was designed, comprising a working chamber, a drive motor, a magnetic rod, and a filter screen. The magnetic rod attracts iron filings, and the filter screen intercepts wood chips. Combined with a detachable cover and threaded rod structure, it facilitates the cleaning of residual debris.
It effectively removes iron filings and wood chips, preventing debris from affecting the performance of cement grinding aids and simplifying the cleaning process of debris inside the device.
Smart Images

Figure CN224195248U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement grinding aid technology, specifically to a raw material impurity removal device for cement grinding aid production. Background Technology
[0002] In the grinding process of cement clinker, the addition of a small amount of external substances can significantly improve grinding efficiency or reduce energy consumption without impairing the performance of cement. These chemical additives are collectively referred to as cement grinding aids. Cement grinding aids can significantly increase the hourly output of cement, the strength of cement at various ages, and improve its fluidity. Cement grinding aids can also significantly reduce the electrostatic adsorption balling phenomenon formed during the grinding process and reduce the tendency of ultrafine particles to re-agglomerate during the grinding process. Therefore, cement grinding aids are widely used in the market.
[0003] In today's society, the raw materials for cement grinding aid production are easily mixed with impurities such as sawdust or iron filings during transportation and production, which affects the effectiveness of cement grinding aid. Therefore, it is very necessary to remove impurities from cement grinding aid. However, it has been found that existing cement grinding aid impurity removal devices are inconvenient to clean the iron filings, sawdust, and other impurities remaining in the device after impurity removal. Therefore, we need a raw material impurity removal device for cement grinding aid production. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a raw material impurity removal device for cement grinding aid production, which solves the problem that existing raw material impurity removal devices for cement grinding aid production are inconvenient for cleaning iron filings, wood chips, and other debris remaining in the device after impurity removal.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a raw material impurity removal device for cement grinding aid production, comprising a working box, a feeding hopper fixedly connected to the top of the working box, a discharging hopper fixedly connected to the bottom of the working box, fixing plates fixedly connected to both outer walls of the working box, two support columns fixedly connected to the bottom of each of the two fixing plates, and an impurity removal mechanism fixedly installed inside the working box.
[0006] Preferably, the impurity removal mechanism includes a mounting plate, and one outer wall of the mounting plate is fixedly connected to one outer wall of the working box. A drive motor is fixedly mounted on the top of the mounting plate, and a connecting shaft is fixedly connected to the output end of the drive motor. One end of the connecting shaft is fixedly connected to a mounting shaft, and several magnetic rods are fixedly mounted on one outer wall of the mounting shaft.
[0007] Preferably, mounting brackets are fixedly connected to the inner walls of both sides of the working box, and sliding grooves are opened on one side of the outer wall of each of the two mounting brackets. A fixed frame is slidably connected between the inner walls of one side of the two sliding grooves, and a filter screen is fixedly installed between the inner walls of both sides of the fixed frame. Inclined plates are fixedly connected to the inner walls of both sides of the working box.
[0008] Preferably, two connecting strips are fixedly connected to one side of the outer wall of the fixed frame, and an embedded plate is fixedly connected to one end of each of the two connecting strips. An embedded groove adapted to the embedded plate is opened on one side of the outer wall of the working box, and a first handle is fixedly connected to one side of the outer wall of the embedded plate.
[0009] Preferably, a cover plate is hinged to one outer wall of the working box, and two clamping plates are fixedly connected to one outer wall of the cover plate. Each of the two clamping plates has a threaded groove on one outer wall, and a second handle is fixedly connected to one outer wall of the cover plate.
[0010] Preferably, one outer wall of the working box has two slots that are adapted to the card plate, and both outer walls of the working box are threaded with threaded rods, one end of which extends into the inside of the slots. One end of each of the two threaded rods is fixedly connected to a hand guard.
[0011] Beneficial effects
[0012] This utility model provides a raw material impurity removal device for cement grinding aid production. Compared with the prior art, it has the following advantages:
[0013] (1) When using the cement grinding aid production raw material removal device, the operator can pour the cement grinding aid production raw material to be processed into the feed hopper so that the cement grinding aid production raw material can enter the working box. At this time, after the drive motor starts, it can rotate the magnetic rod through the connecting shaft and the mounting shaft, so that the magnetic rod can adsorb the iron filings mixed in the production raw material. At the same time, the larger wood chips in the falling production raw material will also be intercepted by the filter screen, so that the removal mechanism can remove the iron filings and wood chips mixed in the production raw material, and prevent impurities from being mixed in the production raw material and affecting the use effect of cement grinding aid.
[0014] (2) After impurity removal, the worker can pull the fixed frame with the first handle to remove the filter screen from the working box, which makes it convenient to clean the wood chips remaining on the filter screen. In addition, after a period of use, the worker can rotate the threaded rod with the hand guard so that one end of the threaded rod can be pulled out from the threaded groove on the card plate. The worker can then flip the cover plate with the second handle to expose the inside of the working box, which makes it convenient to clean the iron filings adsorbed on the magnetic rod. This solves the problem that the existing impurity removal device for cement grinding aid production is inconvenient to clean the iron filings and wood chips remaining in the impurity removal device after impurity removal. Attached Figure Description
[0015] Figure 1 This is a front view structural diagram of the present utility model;
[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0017] Figure 3 This utility model Figure 1 Enlarged view of the local structure at point A in the middle.
[0018] In the diagram: 1-Working box, 2-Impurity removal mechanism, 11-Feed hopper, 12-Discharge hopper, 13-Fixed plate, 14-Support column, 15-Embedded groove, 16-Card slot, 21-Mounting plate, 22-Drive motor, 23-Mounting shaft, 24-Mounting bracket, 25-Fixed frame, 26-Sloping plate, 27-Embedded plate, 28-Cover plate, 29-Threaded rod, 221-Connecting shaft, 231-Magnetic rod, 241-Slide groove, 251-Filter screen, 252-Connecting strip, 271-First handle, 281-Card plate, 282-Threaded groove, 283-Second handle, 291-Hand guard. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3This utility model provides a technical solution: a raw material impurity removal device for cement grinding aid production, including a working box 1, a feeding hopper 11 fixedly connected to the top of the working box 1, a discharging hopper 12 fixedly connected to the bottom of the working box 1, fixing plates 13 fixedly connected to the outer walls of both sides of the working box 1, two support columns 14 fixedly connected to the bottom of the two fixing plates 13, and an impurity removal mechanism 2 fixedly installed inside the working box 1.
[0021] The impurity removal mechanism 2 includes a mounting plate 21, one outer wall of which is fixedly connected to one outer wall of the working box 1. A drive motor 22 is fixedly mounted on the top of the mounting plate 21. The specifications of the drive motor 22 are determined according to the actual situation. A connecting shaft 221 is fixedly connected to the output end of the drive motor 22. A mounting shaft 23 is fixedly connected to one end of the connecting shaft 221. Several magnetic rods 231 are fixedly mounted on one outer wall of the mounting shaft 23. The magnetic rods 231 can attract iron filings mixed in the production raw materials. Mounting brackets 24 are fixedly connected to the inner walls of both sides of the working box 1. A groove 241 is opened on one outer wall of each of the two mounting brackets 24. A fixed frame 25 is slidably connected between the inner surface walls of one side of the slide 241. A filter screen 251 is fixedly installed between the inner surface walls of both sides of the fixed frame 25. The filter screen 251 can intercept sawdust mixed in the production raw materials. Inclined plates 26 are fixedly connected to the inner surface walls of both sides of the working box 1. Two connecting strips 252 are fixedly connected to the outer surface wall of one side of the fixed frame 25. An embedded plate 27 is fixedly connected to one end of each of the two connecting strips 252. An embedded groove 15 adapted to the embedded plate 27 is opened on the outer surface wall of one side of the working box 1. A first handle 271 is fixedly connected to the outer surface wall of one side of the embedded plate 27. The first handle 271 makes it convenient for the operator to pull the embedded plate 27.
[0022] A cover plate 28 is hinged to one outer wall of the working box 1. Two clamping plates 281 are fixedly connected to one outer wall of the cover plate 28. Threaded grooves 282 are opened on one outer wall of each clamping plate 281. A second handle 283 is fixedly connected to one outer wall of the cover plate 28. The second handle 283 facilitates the operator to flip the cover plate 28. Two slots 16 that are adapted to the clamping plates 281 are opened on one outer wall of the working box 1. Threaded rods 29 are threadedly connected to both outer walls of the working box 1. One end of the threaded rod 29 passes through the interior of the slot 16. Hand guards 291 are fixedly connected to one end of each threaded rod 29. All contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0023] In use, the operator pours the raw materials for the cement grinding aid into the feed hopper 11, allowing them to enter the working chamber 1. At this time, the drive motor 22 starts and rotates the magnetic rod 231 via the connecting shaft 221 and the mounting shaft 23. The magnetic rod 231 attracts iron filings mixed in the raw materials, while larger wood chips falling from the raw materials are intercepted by the filter screen 251. This allows the impurity removal mechanism 2 to remove iron and wood chips mixed in the raw materials, preventing impurities from affecting the effectiveness of the cement grinding aid. After impurity removal... The operator can pull the fixed frame 25 through the first handle 271, so that the fixed frame 25 and the filter screen 251 can be pulled out from the working box 1, which makes it convenient to clean the sawdust remaining on the filter screen 251. In addition, after a period of use, the operator can also rotate the threaded rod 29 through the hand guard 291, so that one end of the threaded rod 29 can be pulled out from the threaded groove 282 on the clamping plate 281. The operator can then use the second handle 283 to flip the cover plate 28, exposing the inside of the working box 1, which makes it convenient to clean the iron filings adsorbed on the magnetic rod 231.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A raw material impurity removal device for cement grinding aid production, comprising a working chamber (1), characterized in that: The top of the working box (1) is fixedly connected to a feed hopper (11), the bottom of the working box (1) is fixedly connected to a discharge hopper (12), the outer walls of both sides of the working box (1) are fixedly connected to fixed plates (13), the bottom of the two fixed plates (13) are fixedly connected to two support columns (14), and the interior of the working box (1) is fixedly equipped with a cleaning mechanism (2).
2. The raw material impurity removal device for cement grinding aid production according to claim 1, characterized in that: The impurity removal mechanism (2) includes a mounting plate (21), and one outer wall of the mounting plate (21) is fixedly connected to one outer wall of the working box (1). A drive motor (22) is fixedly installed on the top of the mounting plate (21), and a connecting shaft (221) is fixedly connected to the output end of the drive motor (22). One end of the connecting shaft (221) is fixedly connected to a mounting shaft (23), and several magnetic rods (231) are fixedly installed on one outer wall of the mounting shaft (23).
3. The raw material impurity removal device for cement grinding aid production according to claim 2, characterized in that: The inner walls of both sides of the working box (1) are fixedly connected to mounting brackets (24), and the outer walls of one side of the two mounting brackets (24) are provided with sliding grooves (241). A fixed frame (25) is slidably connected between the inner walls of one side of the two sliding grooves (241). A filter screen (251) is fixedly installed between the inner walls of both sides of the fixed frame (25). Inclined plates (26) are fixedly connected to the inner walls of both sides of the working box (1).
4. The raw material impurity removal device for cement grinding aid production according to claim 3, characterized in that: Two connecting strips (252) are fixedly connected to one side of the outer wall of the fixed frame (25), and an embedded plate (27) is fixedly connected to one end of each of the two connecting strips (252). An embedded groove (15) adapted to the embedded plate (27) is opened on one side of the outer wall of the working box (1). A first handle (271) is fixedly connected to one side of the outer wall of the embedded plate (27).
5. The raw material impurity removal device for cement grinding aid production according to claim 4, characterized in that: A cover plate (28) is hinged to one side of the outer wall of the working box (1). Two clamping plates (281) are fixedly connected to one side of the outer wall of the cover plate (28). Threaded grooves (282) are opened on one side of the outer wall of each of the two clamping plates (281). A second handle (283) is fixedly connected to one side of the outer wall of the cover plate (28).
6. The raw material impurity removal device for cement grinding aid production according to claim 5, characterized in that: Two slots (16) adapted to the card plate (281) are provided on one side outer wall of the working box (1). Both sides of the working box (1) are threaded with threaded rods (29), and one end of the threaded rod (29) penetrates into the inside of the slot (16). One end of each of the two threaded rods (29) is fixedly connected with a handguard (291).