Grinding aid mixing equipment capable of controllably adding retarder

Abstract

The utility model relates to the technical field of cement production and processing, and discloses grinding aid mixing equipment capable of controllably adding a retarder. The grinding aid mixing equipment capable of controllably adding the retarder comprises a mixing tank, an ingredient classifying and stirring mechanism is mounted in the mixing tank, and an ingredient classifying and proportioning control mechanism is mounted above the mixing tank. According to the utility model, the normal preparation barrel and the small preparation barrel are arranged above the mixing tank, ingredients mixed by cement are added into the normal preparation barrel, and different types of retarders, such as sugar water, gypsum and the like, are added into the small preparation barrel for an experiment, and in the experiment process, the switches are arranged below the normal preparation barrel and the small preparation barrel, so that the experiment can be carried out conveniently. The switch performs on-off control on the flow degree of the ingredients in the barrel, and the proportioning cup is arranged below the switch and can control the volume of the ingredients each time, so that the dosage of the ingredients is controlled, and the proportioning is reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production and processing, in particular to a grinding aid mixing device capable of adding a retarder in a controllable amount. Background Art

[0002] The mixing of retarding grinding aid and grinding aid double blending process can improve the grinding effect between cement particles, increase the friction and collision force between particles, thereby improving the grinding efficiency; make cement particles easier to be broken and refined, improve the production capacity and grinding efficiency of cement mill, and at the same time, add retarding grinding aid to enhance the retarding effect, such as extending the setting time, reducing the early strength, improving the operability of cement, etc. For this purpose, a grinding aid mixing equipment with a controllable amount of retarder is proposed for use.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN214764848U discloses a cement grinding aid batching and uniform mixing device, which belongs to the technical field of cement grinding aid production. In the technical scheme, it includes a tank body and a stirring mechanism, the top and bottom of the tank body are respectively installed with a cover body and a discharge hopper, the cover body is installed with a feed box and a powder hopper, the bottom of the cover body is installed with a powder pipe connected to the powder hopper, the stirring mechanism is installed in the tank body, the stirring mechanism includes a stirring shaft, a scraper rod and a plurality of connecting rods, the scraper rod is connected to the stirring shaft through a plurality of connecting rods, the stirring shaft is driven by a stirring motor installed on the cover body, a material trough is provided in the stirring shaft, a feed guide groove is provided in the connecting rod, the feed box is connected with the feed guide groove through the material trough, and the material can be evenly distributed into the tube body through the feed guide port on the connecting rod, the stirring mechanism of the device can continuously add liquid raw materials to the tank body during stirring, so that the raw materials can be dispersedly supplied during the processing process, which is conducive to the mixing of multiple raw materials in the tank body, and greatly improves the convenience of batching and mixing in the production process of cement grinding aid.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that since coagulants need to be added to cement during the mixing process to mix it, different types of retarders need to be selected during mixing. There are many types of retarders and it is not easy to mix them separately. In addition, the amount of retarder cannot be reasonably controlled during the mixing process, which will affect the mixing results. The existence of these problems has affected the use of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a grinding aid mixing device with a controllable amount of retarder added, which has the advantages of separate proportioning and separate device for batching, and solves the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding aid mixing device with controllable amount of retarder, comprising a mixing tank, a batching classification stirring mechanism is installed inside the mixing tank, a batching classification ratio control mechanism is installed above the mixing tank, and the batching classification stirring mechanism comprises: an intermediate cylinder installed inside the mixing tank, a stirring column is arranged in the middle of the intermediate cylinder, and a stirring plate is installed outside the stirring column, and a small side cylinder for preliminary mixing is arranged outside the intermediate cylinder, a stick ring is connected to one side of the top of the small side cylinder, and a stirring stick is installed inside the stick ring, and a flow pipe for equipment communication is connected between the small side cylinder and the intermediate cylinder;

[0009] The ingredient classification and proportioning control mechanism includes: a small proportioning barrel installed above the mixing tank, a barrel ring is installed at the lower part of the outside of the small proportioning barrel, and a switch is installed at the lower part of the small proportioning barrel, and a connecting rod is connected to one side of the switch, a proportioning cup for metering, viewing and control is installed at one end of the connecting rod, and a swivel is installed between the proportioning cup and the connecting rod due to the rotation of the equipment, and a side ring rod is fixedly installed on the outside of the mixing tank.

[0010] As a preferred technical solution of the utility model, a motor box is installed on one side of the mixing tank, and a regular barrel is installed on one side of the small barrel; the motor box can drive the equipment to rotate.

[0011] As a preferred technical solution of the utility model, a bottom plate is installed at the bottom of the conventional barrel, and a fixing rod is fixedly installed at one end of the bottom plate, and a connecting plate is installed at one end of the bottom of the fixing rod; the fixing rod can support the equipment.

[0012] As the preferred technical solution of the utility model, the midpoints of the middle cylinder and the mixing tank are consistent, and the small side cylinders are distributed in a ring-shaped relationship with the midpoint of the middle cylinder, and the diameter of the small side cylinder is 0.6 times that of the middle cylinder, the stirring stick is installed inside the small side cylinder through a stick ring, and a small mixing barrel is provided directly above the lower side cylinder; the small side cylinder facilitates the preliminary mixing of the ingredients.

[0013] As a preferred technical solution of the utility model, the proportioning cup is connected to the small proportioning barrel through a connecting rod, and a fixing rod is fixedly installed behind the barrel ring, and the barrel ring is also arranged on the outside of the proportioning cup; the proportioning cup can control the metering of ingredients.

[0014] As a preferred technical solution of the utility model, the fixing rod is fixedly installed above the side ring rod, and the normal mixing barrel is connected through the fixing rod, the connecting plate and the mixing tank, and the normal mixing barrel is in a left-right symmetrical relationship through the midpoint of the mixing tank; the mixing tank can mix the ingredients.

[0015] As a preferred technical solution of the utility model, the regular barrel is three times larger than the small barrel, and the number of small barrels is also three times that of the regular barrel; the regular barrel and the small barrel can be installed with different types of retarders.

[0016] Compared with the prior art, the utility model provides a grinding aid mixing device for adding a controllable amount of a retarder, which has the following beneficial effects:

[0017] 1. The utility model arranges a normal mixing barrel and a small mixing barrel above a mixing tank, adds cement mixed ingredients into the normal mixing barrel, and adds different types of retarders into the small mixing barrel to conduct experiments, such as sugar water, gypsum and other substances. During the experiment, switches are arranged below the normal mixing barrel and the small mixing barrel, and the switches control the flow rate of the ingredients inside the barrels. A proportioning cup is arranged below the switch, and the proportioning cup can control the capacity of each ingredient, thereby controlling the dosage of the ingredients to make the proportion reasonable. This design classifies the ingredients according to the arrangement of the normal mixing barrel and the small mixing barrel, so that the ingredients are arranged separately, and the ingredients are individually metered, controlled and compared.

[0018] 2. The utility model is provided with an intermediate cylinder inside the mixing tank, and the intermediate cylinder mixes the ingredients by means of a stirring column and a stirring plate, and a small side cylinder is provided outside the intermediate cylinder, and the small side cylinder is located directly below the small mixing barrel. When the small mixing barrel completes the proportioning of the raw materials, two or more raw materials are arranged, and then the stirring rod inside the small side cylinder is used to arrange the raw materials for a preliminary mixing experiment, and then the flow pipe is used to transfer the ingredients mixed by the small side cylinder to the inside of the intermediate cylinder for further mixing. This design allows cement to be mixed step by step during the proportioning process, and the mixing steps are subdivided, which is convenient for the staff to observe the changes in the ingredients after mixing, thereby achieving the requirements of improving the production capacity and grinding efficiency of the cement mill and reducing the energy consumption and cost in the cement production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the mixing tank tray assembly of the utility model structure;

[0021] Figure 3 This is a schematic diagram of a small barrel assembly of the utility model structure;

[0022] Figure 4 This is a schematic diagram of a barrel assembly commonly used in the utility model structure;

[0023] Among them: 1. Mixing tank; 11. Middle cylinder; 12. Stirring column; 13. Stirring plate; 14. Small side cylinder; 15. Stick ring; 16. Stirring stick; 17. Circulation pipe; 2. Motor box; 3. Regular mixing barrel; 31. Bottom plate; 32. Fixed rod; 33. Connecting plate; 4. Small mixing barrel; 41. Barrel ring; 42. Switch; 43. Connecting rod; 44. Proportioning cup; 45. Rotating ring; 46. Side ring rod. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 — Figure 4In the present embodiment, a grinding aid mixing device with controllable amount of retarder is provided, comprising: a mixing tank 1, a batching classification stirring mechanism is installed inside the mixing tank 1, a batching classification ratio control mechanism is installed above the mixing tank 1, the batching classification stirring mechanism comprises: an intermediate cylinder 11 installed inside the mixing tank 1, a stirring column 12 is arranged in the middle of the intermediate cylinder 11, a stirring plate 13 is installed outside the stirring column 12, a small side cylinder 14 is arranged outside the intermediate cylinder 11, a stick ring 15 is connected to one side of the top of the small side cylinder 14, a stirring rod 16 is installed inside the stick ring 15, and a flow pipe 17 is connected between the small side cylinder 14 and the intermediate cylinder 11; the midpoints of the intermediate cylinder 11 and the mixing tank 1 are consistent, and the small side cylinders 14 are distributed in a ring relationship with the midpoint of the intermediate cylinder 11, and the diameter of the small side cylinder 14 is 0.6 times larger than that of the intermediate cylinder 11, the stirring rod 16 is installed inside the small side cylinder 14 through the stick ring 15, and a small batching barrel 4 is arranged directly above the small side cylinder 14.

[0028] Specifically, an intermediate cylinder 11 is installed inside the mixing tank 1, and a small side cylinder 14 is arranged outside the intermediate cylinder 11. The small side cylinder 14 is located directly below the small mixing barrel 4. When the small mixing barrel 4 pours a certain amount of raw materials into the small side cylinder 14, a stirring stick 16 is arranged inside the small side cylinder 14. The stirring stick 16 can mix two or more ingredients inside the small side cylinder 14, so that the small side cylinder 14 completes the first step of the mixing experiment, and then according to the setting of the circulation pipe 17, the mixed ingredients inside the small side cylinder 14 are circulated to the inside of the intermediate cylinder 11. The intermediate cylinder 11 can further mix multiple ingredients at the same time, so as to develop cement ingredients.

[0029] A motor box 2 is installed on one side of the mixing tank 1, and a regular mixing barrel 3 is installed on one side of the small mixing barrel 4; a bottom plate 31 is installed at the bottom of the regular mixing barrel 3, and a fixing rod 32 is fixedly installed at one end of the bottom plate 31, and a connecting plate 33 is installed at the bottom end of the fixing rod 32; the fixing rod 32 is fixedly installed above the side ring rod 46, and the regular mixing barrel 3 is connected to the mixing tank 1 through the fixing rod 32 and the connecting plate 33, and the regular mixing barrel 3 is symmetrical with the midpoint of the mixing tank 1; the proportioning cup 44 is connected to the small mixing barrel 4 through the connecting rod 43, and the fixing rod 32 is fixedly installed on the rear of the barrel ring 41, and the barrel ring 41 is also arranged on the outside of the proportioning cup 44.

[0030] Specifically, the normal mixing barrel 3 is connected to the mixing tank 1 through a fixing rod 32 and a connecting plate 33, and the internal capacity of the normal mixing barrel 3 is relatively large, so commonly used ingredients such as retarders can be installed, which is convenient for mixing with other ingredients.

[0031] The ingredient classification and proportioning control mechanism includes: a small mixing barrel 4 installed above the mixing tank 1, a barrel ring 41 is installed at the lower part of the outside of the small mixing barrel 4, and a switch 42 is installed at the lower part of the small mixing barrel 4, and a connecting rod 43 is connected to one side of the switch 42, a mixing cup 44 is installed at one end of the connecting rod 43, and a swivel 45 is installed between the mixing cup 44 and the connecting rod 43, and a side ring rod 46 is fixedly installed on the outside of the mixing tank 1; the normal mixing barrel 3 is three times larger than the small mixing barrel 4, and the number of small mixing barrels 4 is also three times that of the normal mixing barrel 3.

[0032] Specifically, different types of retarders, such as gypsum retarder and sugar water, are installed inside the small mixing barrel 4, and switches 42, connecting rods 43, and proportioning cups 44 are provided below the small mixing barrel 4. The switch 42 is used to make the ingredients inside the small mixing barrel 4 flow into the proportioning cup 44, and the proportioning cup 44 is used to observe the capacity of the ingredients so that the proportion of the ingredients can be controlled before mixing. The proportioning cup 44 is then rotated by using the swivel 45 to pour the ingredients inside into the small side tube 14.

[0033] When in use, prepare the retarder needed for cement production, then pour the commonly used ingredients into the regular mixing barrel 3, and install the uncertain or new ingredients in the small mixing barrel 4 respectively. After installation, according to the research and development steps, turn on the switch 42 of the specified ingredients in the small mixing barrel 4, so that it flows out to the mixing cup 44 below. The mixing cup 44 is a glass measuring cup, which can be used to observe the measurement of the ingredients. Then turn off the switch 42, and a small side barrel 14 is provided at the bottom of the small mixing barrel 4. Pour two or more ingredients into the small side barrel 14. A stirring stick 16 is provided inside the small side barrel 14. The stirring stick 16 can mix the ingredients inside the small side barrel 14, thereby completing the first step of mixing. By analogy, mix the ingredients one by one according to the studied mixing plan. During mixing, if sugar water is used as a retarder, it may be temperature-dependent. In a high temperature environment, the retarding effect of sugar water may be reduced, resulting in The setting speed of cement is accelerated, while in a low temperature environment, the retarding effect of sugar water may be enhanced, resulting in a slowdown in the setting speed of cement; the effect of sugar water as a retarder may be affected by other admixtures, such as some water reducers may react with sugar water to reduce the retarding effect of sugar water. In this case, it is possible to study the use of other retarders that are less sensitive to temperature and admixtures, or select admixtures with good compatibility with sugar water, and make reasonable proportions to ensure a stable retarding effect. The test of multiple retarders can improve the shortcomings of a certain retarder on the performance of retarded cement and explore the retarder that is most suitable for retarded cement. When the mixing is completed, a circulation pipe 17 is connected between the small side tube 14 and the middle tube 11. The circulation pipe 17 circulates the mixed ingredients inside the small side tube 14 to the inside of the middle tube 11. The middle tube 11 can further mix multiple ingredients at the same time, thereby completing the product ratio research and development.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grinding aid mixing device for adding a retarder in a controllable amount, comprising a mixing tank (1), wherein a batching classification stirring mechanism is installed inside the mixing tank (1), and a batching classification ratio control mechanism is installed above the mixing tank (1), characterized in that: The ingredient classification stirring mechanism comprises: an intermediate cylinder (11) installed inside the mixing tank (1), a stirring column (12) is arranged in the middle of the intermediate cylinder (11), a stirring plate (13) is installed outside the stirring column (12), a small side cylinder (14) is arranged outside the intermediate cylinder (11), a stick ring (15) is connected to one side of the top of the small side cylinder (14), a stirring stick (16) is installed inside the stick ring (15), and a flow pipe (17) is connected between the small side cylinder (14) and the intermediate cylinder (11); The ingredient classification and proportioning control mechanism comprises: a small proportioning barrel (4) installed above the mixing tank (1), a barrel ring (41) installed at the lower part of the outside of the small proportioning barrel (4), a switch (42) installed at the lower part of the small proportioning barrel (4), a connecting rod (43) connected to one side of the switch (42), a proportioning cup (44) installed at one end of the connecting rod (43), a rotating ring (45) installed between the proportioning cup (44) and the connecting rod (43), and a side ring rod (46) fixedly installed on the outside of the mixing tank (1).

2. A grinding aid mixing device with controllable addition of retarder according to claim 1, characterized in that: A motor box (2) is installed on one side of the mixing tank (1), and a regular distribution barrel (3) is installed on one side of the small distribution barrel (4).

3. A grinding aid mixing device with controllable addition of retarder according to claim 2, characterized in that: A bottom plate (31) is installed at the bottom of the regular barrel (3), a fixing rod (32) is fixedly installed at one end of the bottom plate (31), and a connecting plate (33) is installed at one end of the bottom of the fixing rod (32).

4. A grinding aid mixing device with controllable addition of retarder according to claim 1, characterized in that: The midpoints of the intermediate cylinder (11) and the mixing tank (1) are consistent, and the small side cylinders (14) are distributed in a ring-shaped relationship with the midpoint of the intermediate cylinder (11), and the diameter of the small side cylinder (14) is 0.6 times larger than that of the intermediate cylinder (11). The stirring rod (16) is installed inside the small side cylinder (14) through a rod ring (15), and a small distribution barrel (4) is arranged directly above the small side cylinder (14).

5. A grinding aid mixing device with controllable addition of retarder according to claim 3, characterized in that: The proportioning cup (44) is connected to the small proportioning barrel (4) via a connecting rod (43), a fixing rod (32) is fixedly installed behind the barrel ring (41), and the barrel ring (41) is also arranged outside the proportioning cup (44).

6. A grinding aid mixing device with controllable addition of retarder according to claim 3, characterized in that: The fixing rod (32) is fixedly installed above the side ring rod (46), and the normal mixing barrel (3) is connected to the mixing tank (1) through the fixing rod (32), the connecting plate (33), and the mixing tank (1), and the normal mixing barrel (3) is symmetrical with respect to the left and right through the midpoint of the mixing tank (1).

7. A grinding aid mixing device with controllable addition of retarder according to claim 3, characterized in that: The regular barrel (3) is three times larger than the small barrel (4), and the number of the small barrels (4) is also three times that of the regular barrels (3).

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