Uniform drying device for cement grinding aid

Abstract

The utility model relates to a uniform drying device for cement grinding aid, which comprises a tank body, a mounting cavity is arranged in the tank body, a barrel body is rotatably connected in the mounting cavity, a drying cavity is arranged in the barrel body, a rotating barrel is rotatably connected in the drying cavity, a spiral blade for conveying grinding aid powder is arranged on the periphery of the rotating barrel, and a material lifting blade is arranged on the inner wall of the barrel body. The multiple material lifting blades are arranged at intervals in the radial direction and the axial direction, a first connecting part which extends downwards and extends out of the mounting cavity is arranged at the bottom of the barrel body, the first connecting part is connected with a first driving mechanism, and a second connecting part which extends upwards and extends out of the mounting cavity is arranged at the top of the rotating barrel; the second connecting part is connected with a second driving mechanism which is used for driving the barrel to rotate. The cement grinding aid powder scattering device has the following advantages and effects that cement grinding aid powder can be scattered in the conveying process of the cement grinding aid powder, so that the cement grinding aid powder can be dried more sufficiently and uniformly.

Description

Technical Field

[0001] The utility model relates to the technical field of cement grinding aid processing, in particular to a uniform drying device for cement grinding aid. Background Art

[0002] Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It is mainly made by mixing cement grinding aid slurry and diluent in a certain proportion according to the properties of the cement used, so as to increase the hourly output of cement, the strength of cement at each age, and improve its fluidity. Cement grinding aid slurry is made by mixing cement grinding aid powder and additives. In order to ensure the processing quality of cement grinding aid slurry, the cement grinding aid powder and additives need to be dried by a powder dryer to reduce the water content of the material.

[0003] For example, a Chinese patent document with announcement number CN217818019U discloses a slag ultrafine powder dryer, including a base, a working cylinder, a feeding hopper, multiple groups of fixed frames, multiple groups of heating wires, multiple groups of fans, multiple groups of filter screens and a material circulation conveying assembly, wherein the working cylinder is fixedly mounted on the upper end face of the base through multiple groups of pillars, the feeding hopper is connected and installed on the upper left part of the working cylinder, multiple groups of exhaust ports are evenly distributed and connected on the upper end face of the working cylinder, multiple groups of air inlets are connected and installed on the side end face of the working cylinder, multiple groups of fixed frames are evenly distributed and fixedly mounted on the side end face of the working cylinder, and the multiple groups of fixed frames are respectively connected with the multiple groups of air inlets, multiple groups of heating wires are respectively fixedly mounted inside the multiple groups of fixed frames, multiple groups of fans are respectively connected and installed on the outer end faces of the multiple groups of fixed frames, and the material circulation conveying assembly is installed on the working cylinder.

[0004] It can be seen from the above disclosed content that in the above technical scheme, the material is driven to be transported upward through the material circulation conveying component. After being transported to the top, under the action of gravity, the reflux can fall back to the bottom, and then the material is transported upward by the material circulation conveying component. In this way, by circulating the material, the material can be dispersed to achieve sufficient drying of the material. However, in the process of actual use, it is found that the material is easy to stick together in the process of falling. Even if the material is transported upward again by the material circulation conveying component, since the material stuck together at this time is a whole, it is easy to cause insufficient and uniform drying of the material. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a uniform drying device for cement grinding aids, which can break up the cement grinding aids during the cement grinding aid conveying process so as to make the cement grinding aids more fully and evenly dried.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a uniform drying device for cement grinding aids, comprising a tank body, a mounting cavity is provided in the tank body, a cylinder body is rotatably connected in the mounting cavity, a drying cavity is provided in the cylinder body, a rotating drum is rotatably connected in the drying cavity, a spiral blade for conveying grinding aids is provided on the outer periphery of the rotating drum, a lifting blade is provided on the inner wall of the cylinder body, the lifting blades are multiple and are spaced apart from each other in radial and axial directions, a first connecting portion extending downward and extending outside the mounting cavity is provided at the bottom of the cylinder body, the first connecting portion is connected to a first driving mechanism, the first driving mechanism is used to drive the cylinder body to rotate, a second connecting portion extending upward and extending outside the mounting cavity is provided at the top of the rotating drum, the second connecting portion is connected to a second driving mechanism, the second driving mechanism is used to drive the cylinder body to rotate.

[0007] The utility model is further configured as follows: a heating mechanism is provided on the outer periphery of the cylinder, the heating mechanism is multiple and evenly distributed along the circumference, the heating mechanism includes a connecting column, a plurality of heating wires are sleeved on the outer periphery of the connecting column, and the connecting column is fixed to the installation cavity.

[0008] The utility model is further configured as follows: a guide portion is provided between the cylinder and the first connecting portion, and the peripheral wall of the guide portion decreases in height in a direction from the cylinder toward the first connecting portion to form an inclined guide side wall.

[0009] The utility model is further configured as follows: the first connecting portion is communicated with the drying chamber, and the rotating drum is a hollow structure.

[0010] The utility model is further configured as follows: a valve is provided on the first connecting portion, and the valve is used to control the on-off of the first connecting portion.

[0011] The utility model is further configured as follows: a hopper is provided above the second connection part, a connecting port communicating with the drying chamber is provided on the top of the tank body, the connecting ports are multiple and evenly arranged around the second connection part, and the hopper is connected with the connecting port and the second connection part.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Due to the provision of the first driving mechanism and the second driving mechanism, both the cylinder and the rotating drum can rotate. In addition, by providing a plurality of lifting blades on the inner wall of the cylinder, when the cement grinding aid is transported to the top through the rotation of the rotating drum and then falls under the action of gravity, the lifting blades rotating with the cylinder can hit the cement grinding aids that are stuck together, or the cement grinding aids are hit toward the rotating drum through the lifting blades. The impact generated thereby can facilitate the breaking up of the cement grinding aids, so that the cement grinding aids can be separated from each other for easy drying. Therefore, the technical problem in the prior art that the material is not dried sufficiently and uniformly due to adhesion between the materials during the circulation and transportation of the materials is effectively solved, and the cement grinding aid can be dried more sufficiently and uniformly. Moreover, the broken cement grinding aid can fall with the lifting blades after contacting the lifting blades to form a material curtain, thereby increasing the drying area of ​​the cement grinding aid in disguised form, thereby improving the overall drying efficiency of the cement grinding aid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the partial internal structure of the utility model. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] like Figures 1 to 3As shown, the utility model discloses a uniform drying device for cement grinding aid, including a tank body 1, a mounting chamber 2 is provided in the tank body 1, a cylinder body 3 is rotatably connected in the mounting chamber 2, a drying chamber 31 is provided in the cylinder body 3, a rotating drum 4 is rotatably connected in the drying chamber 31, a spiral blade 5 for conveying grinding aid powder is provided on the outer periphery of the rotating drum 4, a material lifting blade 6 is provided on the inner wall of the cylinder body 3, a plurality of material lifting blades 6 are arranged at intervals from each other in radial and axial directions, a first connecting portion 21 extending downward and extending outside the mounting chamber 2 is provided at the bottom of the cylinder body 3, the first connecting portion 21 is connected to a first driving mechanism 7, the first driving mechanism 7 is used to drive the cylinder body 3 to rotate, a second connecting portion 41 extending upward and extending outside the mounting chamber 2 is provided at the top of the rotating drum 4, the second connecting portion 41 is connected to a second driving mechanism 8, the second driving mechanism 8 is used to drive the cylinder body 3 to rotate, due to the provision of the first driving mechanism 7 and the second driving mechanism 8, the cylinder body 3 and the rotating drum 4 can both rotate, in addition, by providing a The plurality of lifting blades 6, after the cement grinding aid powder is transported to the top through the rotation of the rotating drum 4 and then falls under the action of gravity, the lifting blades 6 rotating with the drum body 3 can hit the cement grinding aid powder that is stuck together, so that the impact generated can facilitate the cement grinding aid powder to be broken up, so that the cement grinding aid powder can be separated from each other for easy drying, thereby making the cement grinding aid powder more fully and evenly dried, and the broken cement grinding aid powder can fall with the lifting blades 6 after contacting the lifting blades 6 to form a material curtain, thereby increasing the drying area of ​​the cement grinding aid powder in disguised form, thereby improving the overall drying efficiency of the cement grinding aid powder, wherein the specific structures of the first driving mechanism 7 and the second driving mechanism 8 both use a motor to transmit power through a transmission wheel and a transmission belt, and since they are all existing technologies, they are not described in detail, and the connection between the first connecting portion 21 and the second connecting portion 41 and the tank body 1 both use sealed bearings.

[0020] In this embodiment, a heating mechanism 9 is provided on the outer periphery of the cylinder 3. The heating mechanism 9 is multiple and evenly distributed around the circumference. The heating mechanism 9 includes a connecting column 91. A plurality of heating wires 92 are mounted on the outer periphery of the connecting column 91. The connecting column 91 is fixed to the mounting cavity 2. The heat energy generated by the heating mechanism 9, that is, the heating wire 92 after being energized can be conducted to the drying cavity 31 through heat conduction to achieve the drying of the cement grinding aid powder in the drying cavity 31. By providing multiple heating mechanisms 9 and with the rotation of the cylinder 3, the heat generated by the heating mechanism 9 can be conducted to the drying cavity 31 more evenly. In addition, in this example, a distance is left between the connecting column 91 and the cylinder 3 so as not to be completely fitted, so as to prevent the friction generated after the connecting column 91 contacts the cylinder 3 from affecting the rotation of the cylinder 3, thereby making the overall design more reasonable.

[0021] In this embodiment, a guide portion 10 is provided between the cylinder 3 and the first connecting portion 21, and the height of the peripheral wall of the guide portion 10 gradually decreases along the direction from the cylinder 3 toward the first connecting portion 21 to form an inclined guide side wall 101. Due to the arrangement of the lifting blade 6, a certain distance needs to be left between the spiral blade 5 and the inner wall of the cylinder 3. In order to prevent the cement grinding aid powder that falls between the spiral blade 5 and the inner wall of the cylinder 3 from being retained, the guide portion 10 can guide the cement grinding aid powder that is retained between the spiral blade 5 and the inner wall of the cylinder 3 to the spiral blade 5 under the action of gravity, and the cement grinding aid powder is driven again by the rotation of the rotating drum 4 for transportation, thereby ensuring that the reciprocating transportation of the cement grinding aid powder as a whole is more sufficient.

[0022] In this embodiment, the first connection part 21 is further connected to the drying chamber 31, and the drum 4 is a hollow structure, so that after the cement grinding aid powder is dried, the first connection part 21 can be used as a discharge end to discharge the dried cement grinding aid powder from the drying chamber 31.

[0023] In this embodiment, a valve 11 is provided on the first connection part 21, and the valve 11 is used to control the on-off of the first connection part 21. The valve 11 can prevent the cement grinding aid powder from falling out of the drying chamber 31 when the cement grinding aid powder is dried.

[0024] In this embodiment, a hopper 12 is provided above the second connecting portion 41, and a connecting port 13 communicating with the drying chamber 31 is provided on the top of the tank body 1. The connecting ports 13 are multiple and evenly arranged around the second connecting portion 41. The hopper 12 is connected with the connecting port 13 and the second connecting portion 41. Through the arranged connecting port 13, the connecting port 13 and the second connecting portion 41 can both be used as feeding ends to improve the feeding efficiency of the cement grinding aid powder, and through the arrangement of the hopper 12, the connecting port 13 and the second connecting portion 41 can be integrated to facilitate feeding, wherein the hopper 12 is connected with the connecting port 13 and is in contact with the second connecting portion 41.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A uniform drying device for cement grinding aids, characterized in that: It comprises a tank body, a mounting cavity is arranged in the tank body, a cylinder body is rotatably connected in the mounting cavity, a drying cavity is arranged in the cylinder body, a rotating drum is rotatably connected in the drying cavity, a spiral blade for conveying grinding aid powder is arranged on the outer periphery of the rotating drum, a lifting blade is arranged on the inner wall of the cylinder body, the lifting blades are multiple and are spaced apart from each other in radial and axial directions, a first connecting part extending downward and extending outside the mounting cavity is arranged at the bottom of the cylinder body, the first connecting part is connected to a first driving mechanism, the first driving mechanism is used to drive the cylinder body to rotate, a second connecting part extending upward and extending outside the mounting cavity is arranged at the top of the rotating drum, the second connecting part is connected to a second driving mechanism, the second driving mechanism is used to drive the cylinder body to rotate.

2. A uniform drying device for cement grinding aid according to claim 1, characterized in that: A heating mechanism is arranged on the outer periphery of the cylinder. The heating mechanism is multiple and evenly distributed around the circumference. The heating mechanism comprises a connecting column. A plurality of heating wires are sleeved on the outer periphery of the connecting column. The connecting column is fixed to the installation cavity.

3. A uniform drying device for cement grinding aid according to claim 1, characterized in that: A guide portion is provided between the cylinder and the first connecting portion, and the peripheral wall of the guide portion decreases in height in a direction from the cylinder toward the first connecting portion to form an inclined guide side wall.

4. A uniform drying device for cement grinding aid according to claim 1, characterized in that: The first connecting portion is communicated with the drying chamber, and the rotating drum is a hollow structure.

5. A uniform drying device for cement grinding aid according to claim 4, characterized in that: The first connecting part is provided with a valve, and the valve is used to control the on-off of the first connecting part.

6. A uniform drying device for cement grinding aid according to claim 4, characterized in that: A hopper is provided above the second connection part, a communication port communicating with the drying chamber is provided on the top of the tank body, the communication ports are multiple and evenly arranged around the second connection part, and the hopper is communicated with the communication port and the second connection part.

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