Novel cement grinding aid uniform feeding device

Abstract

The utility model discloses a novel cement grinding aid uniform feeding device which comprises a mixing drum, a top cover is detachably installed on the top face of the mixing drum through a fixing bolt shell, a feeding hopper and a first driving motor are fixedly installed on the top face of the top cover, and a filter screen is detachably installed in the top cover. A dispersing plate is installed at the output end of the first driving motor and located above the filter screen, a plurality of hollow stirring rods are arranged in the stirring barrel in a penetrating mode, and air outlet holes are formed in the surfaces of the multiple hollow stirring rods. According to the cement grinding aid stirring device disclosed by the utility model, the plurality of rotating hollow stirring rods are arranged, and compressed air is fed into the plurality of hollow stirring rods by the air compressor and is finally sprayed out from the air outlet holes, so that a cement grinding aid in the stirring barrel can be uniformly stirred and mixed, and the stirring and mixing are more sufficient and thorough; the problem of precipitation of the cement grinding aid is effectively avoided, the time required for uniform stirring and mixing is shorter, the practicability is high, and the cement grinding aid is worthy of popularization.

Description

Technical Field

[0001] This utility model relates to the field of cement grinding aid processing and production technology, and in particular to a novel cement grinding aid uniform feeding device. Background Technology

[0002] Cement grinding aids are chemical additives that improve the grinding effect and performance of cement. They can significantly increase cement hourly output, cement strength at various ages, and improve its fluidity. Cement grinding aids can greatly reduce the electrostatic adsorption and balling phenomenon formed during the grinding process and reduce the tendency of ultrafine particles to re-agglomerate. In the production process of cement grinding aids, the mother liquor is added to a mixing tank, and then various auxiliary materials are added sequentially. The mixing is carried out during the addition of auxiliary materials to ensure that the cement grinding aid mother liquor and the sequentially added auxiliary materials are evenly mixed in the mixing tank. However, existing cement grinding aid feeding devices concentrate the raw materials together for mixing, resulting in uneven and insufficient mixing, and sedimentation at the bottom of the mixing drum during the mixing process.

[0003] Existing technologies have the following problems:

[0004] After extensive searching, it was found that the patent application with application number CN201820736930.7 discloses a cement grinding aid feeding device. However, the above patent still has some problems in actual use. The most obvious problem is that it takes a long time to mix the cement grinding aid evenly, and it is not conducive to the maintenance and replacement of the filter screen.

[0005] To address these shortcomings, we have proposed a novel uniform feeding device for cement grinding aids. Utility Model Content

[0006] The purpose of this invention is to propose a novel uniform feeding device for cement grinding aids to overcome the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a novel cement grinding aid uniform feeding device, comprising a mixing drum, a top cover detachably mounted on the top surface of the mixing drum via fixing bolts, and a feed hopper and a first drive motor fixedly mounted on the top surface of the top cover; a filter screen detachably mounted inside the top cover; a dispersing plate mounted on the output end of the first drive motor, and the dispersing plate being located above the filter screen; multiple hollow mixing rods penetrating inside the mixing drum, and each of the multiple hollow mixing rods having an air outlet on its surface; one end of each of the multiple hollow mixing rods extending to the bottom of the mixing drum; a first gear fixedly mounted on the surface of each of the multiple hollow mixing rods; a second drive motor mounted on the bottom surface of the mixing drum, and a second gear mounted on the output end of the second drive motor, with the second gear meshing with the first gear; a high-speed rotary joint mounted on one end of each of the multiple hollow mixing rods; an air compressor located below the mixing drum, and a main pipe mounted on the air outlet end of the air compressor, which is connected to the multiple high-speed rotary joints via a tee.

[0008] Preferably, a discharge pipe and a liquid inlet pipe are respectively installed on the left and right sides of the stirring drum, and the liquid inlet pipe is located below the filter screen.

[0009] Preferably, a one-way valve is installed on the main pipe.

[0010] Preferably, the air outlet is provided in multiple ways, and the multiple air outlets are distributed in a ring array on the surface of the hollow stirring rod.

[0011] Preferably, a plurality of the hollow stirring rods are arranged in a ring array inside the stirring cylinder.

[0012] Preferably, a control switch is fixedly installed on the outer wall of the stirring tank, and the control switch is electrically connected to the first drive motor and the second drive motor through a wire.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, multiple rotating hollow stirring rods are set up. An air compressor sends compressed air into several hollow stirring rods and finally sprays it out from the air outlet. This can uniformly stir and mix the cement grinding aid in the mixing drum, making the stirring and mixing more thorough and effectively avoiding the problem of sedimentation of cement grinding aid. Moreover, the time required for uniform stirring and mixing is shorter. It is highly practical and worth promoting.

[0015] 2. In this utility model, a detachable top cover is provided. By removing the top cover, the filter screen can be maintained and replaced, ensuring the filtration effect and efficiency of the filter screen, and making maintenance more convenient. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a novel cement grinding aid uniform feeding device proposed in this utility model;

[0018] Figure 2 for Figure 1 A partial structural diagram;

[0019] Figure 3 This is a schematic diagram of the external structure of a novel cement grinding aid uniform feeding device proposed in this utility model;

[0020] Figure 4 This is a three-dimensional view of the top cover and the feed hopper.

[0021] Legend:

[0022] 1. Mixing drum; 2. Fixing bolts; 3. Top cover; 4. Feed hopper; 5. First drive motor; 6. Dispersion plate; 7. Filter screen; 8. Liquid inlet pipe; 9. Discharge pipe; 10. Hollow stirring rod; 11. Air outlet; 12. High-speed rotary joint; 13. Main pipe; 14. Air compressor; 15. One-way valve; 16. First gear; 17. Second drive motor; 18. Second gear; 19. Control switch. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1-4 A novel cement grinding aid uniform feeding device includes a mixing drum 1. A top cover 3 is detachably installed on the top surface of the mixing drum 1 via fixing bolts 2. A feed hopper 4 and a first drive motor 5 are fixedly installed on the top surface of the top cover 3. A filter screen 7 is detachably installed inside the top cover 3. A dispersing plate 6 is installed at the output end of the first drive motor 5, and the dispersing plate 6 is located above the filter screen 7. Multiple hollow stirring rods 10 are arranged through the interior of the mixing drum 1, and each of the multiple hollow stirring rods 10 has an air vent 11 on its surface. One end of each of the multiple hollow stirring rods 10 is... Extending to the bottom of the mixing drum 1, a first gear 16 is fixedly installed on the surface of a plurality of hollow stirring rods 10. A second drive motor 17 is installed on the bottom surface of the mixing drum 1, and a second gear 18 is installed on the output end of the second drive motor 17. The second gear 18 meshes with the first gear 16. A high-speed rotary joint 12 is installed on one end of a plurality of hollow stirring rods 10. An air compressor 14 is provided below the mixing drum 1, and a main pipe 13 is installed on the air outlet end of the air compressor 14. The main pipe 13 is connected to a plurality of high-speed rotary joints 12 through a tee.

[0026] In use, the liquid raw materials required for mixing are first injected into the mixing drum 1 through the liquid inlet pipe 8, ensuring that the liquid raw materials do not submerge the filter screen 7. Then, powdered raw materials are slowly added into the mixing drum 1 from the feed hopper 4. Under the action of the filter screen 7, the powdered raw materials that do not meet the specifications are screened out. At the same time, the first drive motor 5 drives the dispersing plate 6 to rotate, which disperses the powdered raw materials on the surface of the filter screen 7, avoiding local accumulation of raw materials that would block the mesh of the filter screen 7. Subsequently, under the action of multiple rotating hollow stirring rods 10, the air compressor 14 sends compressed air into several hollow stirring rods 10 and finally sprays it out from the air outlet 11, which can uniformly stir and mix the cement grinding aid in the mixing drum 1. The stirring and mixing is more thorough and complete, effectively avoiding the problem of sedimentation of cement grinding aid. Moreover, the time required for uniform stirring and mixing is shorter, making it highly practical and worthy of promotion. By setting a detachable top cover 3, the filter screen 7 can be maintained and replaced by removing the top cover 3, ensuring the filtration effect and efficiency of the filter screen 7, and making maintenance more convenient.

[0027] In this embodiment: a discharge pipe 9 and a liquid inlet pipe 8 are respectively installed on the left and right sides of the mixing drum 1, with the liquid inlet pipe 8 located below the filter screen 7.

[0028] Specifically, it can perform feeding and discharging. It should be noted that, as shown in the attached diagram of the instruction manual, valves are installed on both the discharge pipe 9 and the liquid inlet pipe 8.

[0029] In this implementation plan: a one-way valve 15 is installed on the main pipe 13.

[0030] Specifically, this prevents cement grinding aid material from flowing back into the air compressor 14, thus avoiding damage to the air compressor 14.

[0031] In this embodiment, multiple air outlets 11 are provided, and the multiple air outlets 11 are distributed in a ring array on the surface of the hollow stirring rod 10.

[0032] Specifically, it improves the mixing effect and efficiency of cement grinding aids.

[0033] In this embodiment, multiple hollow stirring rods 10 are arranged in a ring array inside the stirring cylinder 1.

[0034] Specifically, it further improves the mixing effect and efficiency of cement grinding aids.

[0035] In this embodiment: a control switch 19 is fixedly installed on the outer wall of the mixing tank 1, and the control switch 19 is electrically connected to the first drive motor 5 and the second drive motor 17 through wires.

[0036] Specifically, the common circuit connection structure will not be elaborated on here.

[0037] In this implementation scheme: the control switch 19 is an existing structure, and the control circuit can be implemented by a person skilled in the art through simple programming. It is common knowledge in the art, and it is only used without modification. Therefore, the control method and circuit connection will not be described in detail.

[0038] Working principle: In use, firstly, the required liquid raw material is injected into the mixing drum 1 through the liquid inlet pipe 8, ensuring that the liquid raw material does not submerge the filter screen 7. Then, powdered raw material is slowly added into the mixing drum 1 from the feed hopper 4. Under the action of the filter screen 7, the powdered raw material is sieved, and non-compliant powdered raw material is removed. At the same time, the first drive motor 5 drives the dispersing plate 6 to rotate, thereby dispersing the powdered raw material on the surface of the filter screen 7 to prevent local accumulation of raw material and blockage of the filter screen 7 mesh. Subsequently, under the action of multiple rotating hollow stirring rods 10, air compression... The machine 14 sends compressed air into several hollow stirring rods 10 and finally sprays it out from the air outlet 11. This can uniformly stir and mix the cement grinding aid in the mixing drum 1, making the stirring and mixing more thorough and effectively avoiding the problem of sedimentation of the cement grinding aid. Moreover, the time required for uniform stirring and mixing is shorter, making it highly practical and worthy of promotion. By setting a detachable top cover 3, the filter screen 7 can be maintained and replaced by removing the top cover 3, ensuring the filtration effect and efficiency of the filter screen 7, and making maintenance more convenient.

[0039] It should be noted that the model and specifications of the control switch 19, the first drive motor 5, and the second drive motor 17 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0040] The power supply and operating principle of the control switch 19, the first drive motor 5, and the second drive motor 17 are clear to those skilled in the art and will not be described in detail here.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel cement grinding aid uniform feeding device, comprising a mixing drum (1), characterized in that, The top surface of the mixing drum (1) is detachably mounted with a top cover (3) via fixing bolts (2), and a feed hopper (4) and a first drive motor (5) are fixedly mounted on the top surface of the top cover (3). A filter screen (7) is detachably mounted inside the top cover (3). A dispersing plate (6) is mounted on the output end of the first drive motor (5), and the dispersing plate (6) is located above the filter screen (7). Multiple hollow stirring rods (10) are arranged through the interior of the mixing drum (1), and each of the multiple hollow stirring rods (10) has an air outlet (11) on its surface. One end of each of the multiple hollow stirring rods (10) extends to the lower part of the mixing drum (1). In this configuration, a first gear (16) is fixedly installed on the surface of each of the hollow stirring rods (10), a second drive motor (17) is installed on the bottom surface of the stirring cylinder (1), and a second gear (18) is installed at the output end of the second drive motor (17), and the second gear (18) meshes with the first gear (16). A high-speed rotary joint (12) is installed at one end of each of the hollow stirring rods (10), and an air compressor (14) is provided below the stirring cylinder (1), and a main pipe (13) is installed at the air outlet end of the air compressor (14), and the main pipe (13) is connected to the multiple high-speed rotary joints (12) through a tee.

2. The novel cement grinding aid uniform feeding device according to claim 1, characterized in that, The left and right sides of the stirring drum (1) are respectively equipped with a discharge pipe (9) and a liquid inlet pipe (8), and the liquid inlet pipe (8) is located below the filter screen (7).

3. The novel cement grinding aid uniform feeding device according to claim 1, characterized in that, A check valve (15) is installed on the main pipe (13).

4. The novel cement grinding aid uniform feeding device according to claim 1, characterized in that, The air outlet (11) is provided in multiple ways, and the multiple air outlets (11) are distributed in a ring array on the surface of the hollow stirring rod (10).

5. A novel cement grinding aid uniform feeding device according to claim 1, characterized in that, Multiple hollow stirring rods (10) are arranged in a ring array inside the stirring cylinder (1).

6. The novel cement grinding aid uniform feeding device according to claim 1, characterized in that, A control switch (19) is fixedly installed on the outer wall of the stirring tank (1), and the control switch (19) is electrically connected to the first drive motor (5) and the second drive motor (17) through wires.

Images