Cement grinding aid adding device

Abstract

The utility model discloses a cement grinding aid adding device which is used for solving the problem that certain cement grinding aid adding devices mentioned in the background technology are inconvenient for quantitative adding; and if the dilution concentration of the grinding aid needs to be changed, the original grinding aid needs to be poured out and then replaced, so that the technical problem that the practicability is relatively poor is solved. Comprising a reaction kettle, a feeding port is formed in the side wall of the reaction kettle, a first stirring shaft is rotationally arranged at the bottom in the reaction kettle, and first stirring blades are fixedly arranged on the first stirring shaft; a liquid storage tank is arranged at the outer top of the reaction kettle, a second stirring shaft is rotationally arranged in the liquid storage tank, second stirring blades are fixedly arranged on the second stirring shaft, and a water inlet is formed in the side wall of the liquid storage tank; a sealing cylinder is arranged on one side of the reaction kettle, a piston is vertically and movably arranged in the sealing cylinder, a liquid outlet pipe penetrates through one side, close to the sealing cylinder, of the bottom of the liquid storage tank, and a liquid inlet pipe penetrates through one side, close to the sealing cylinder, of the reaction kettle; a first check valve is arranged in the liquid outlet pipe, and a second check valve is arranged in the liquid inlet pipe.

Description

Technical Field

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

[0002] In the process of grinding cement clinker, adding a small amount of external substances (liquid or solid substances) can significantly improve the grinding efficiency or reduce energy consumption without damaging the performance of cement. Such chemical additive external substances are generally referred to as cement grinding aids.

[0003] In actual use, under normal circumstances, if the current of the tail-end elevator decreases or the fineness of the cement finished product becomes finer, and at the same time the grinding sound becomes clearer, the production can be directly increased; if the current of the tail-end elevator increases or the fineness of the cement finished product becomes coarser after adding the grinding aid, the dosage of the grinding aid should be appropriately reduced, or the dilution concentration of the grinding aid should be changed until the grinding condition returns to normal. However, the grinding aid adding devices in the prior art are not convenient for quantitative addition; moreover, if the dilution concentration of the grinding aid needs to be changed, the original grinding aid needs to be poured out and replaced, resulting in poor practicability. Content of the Utility Model

[0004] Aiming at the deficiencies in the prior art, the utility model provides a cement grinding aid adding device, which is used to solve some technical problems mentioned in the background art, such as the cement grinding aid adding device is not convenient for quantitative addition; moreover, if the dilution concentration of the grinding aid needs to be changed, the original grinding aid needs to be poured out and replaced, resulting in poor practicability.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A cement grinding aid adding device includes a reaction kettle. An inlet is formed in the side wall of the reaction kettle. A first stirring shaft is rotatably arranged at the bottom inside the reaction kettle, and a first stirring blade is fixedly arranged on the first stirring shaft; a liquid storage tank is arranged at the outer top of the reaction kettle. A second stirring shaft is rotatably arranged inside the liquid storage tank, and a second stirring blade is fixedly arranged on the second stirring shaft. A water inlet is formed in the side wall of the liquid storage tank; a sealing cylinder is arranged on one side of the reaction kettle. A piston is vertically movably arranged inside the sealing cylinder. A liquid outlet pipe penetrates through the side of the liquid storage tank close to the sealing cylinder, and the other end of the liquid outlet pipe is connected to the top of the sealing cylinder in a penetrating manner. A liquid inlet pipe penetrates through the side of the reaction kettle close to the sealing cylinder, and the other end of the liquid inlet pipe is connected to one side of the sealing cylinder in a penetrating manner; a first one-way valve is arranged in the liquid outlet pipe, and a second one-way valve is arranged in the liquid inlet pipe.

[0007] Working Principle:

[0008] In use, inject the cement raw materials into the reaction kettle through the feeding port, and then rotate the first stirring shaft. The rotation of the first stirring shaft drives the rotation of the first stirring blades, thereby stirring the cement.

[0009] Then open the first one-way valve on the liquid outlet pipe and vertically pull down the piston. At this time, the air pressure in the sealing cylinder changes, and the grinding aid in the liquid storage tank enters the sealing cylinder through the liquid outlet pipe. Then close the first one-way valve on the liquid outlet pipe and open the second one-way valve on the liquid inlet pipe, and vertically push up the piston. At this time, the air pressure in the sealing cylinder changes again, and the grinding aid in the sealing cylinder enters the reaction kettle through the liquid inlet pipe, mixes with the cement and is stirred together, thereby improving the grinding effect and performance of the cement.

[0010] After adding the grinding aid, when the phenomenon of the current of the tail-end elevator rising or the fineness of the cement finished product becoming coarser occurs, reduce the incorporation amount of the grinding aid until the grinding condition returns to normal. When the mixing of this batch of cement is completed, add water into the liquid storage tank through the water inlet, and then rotate the second stirring shaft. The rotation of the second stirring shaft drives the rotation of the second stirring blades to stir the grinding aid and water evenly, and dilute the grinding aid.

[0011] Beneficial effects:

[0012] 1. By setting the reaction kettle, feeding port, first stirring shaft, and first stirring blades, rotating the first stirring shaft makes the first stirring blades mix the cement raw materials and the grinding aid evenly.

[0013] 2. By setting the liquid storage tank, sealing cylinder, piston, liquid outlet pipe, liquid inlet pipe, first one-way valve, and second one-way valve, moving the piston vertically, the grinding aid in the liquid storage tank enters the sealing cylinder through the liquid outlet pipe, and then enters the reaction kettle through the liquid inlet pipe, thereby realizing the automatic and quantitative addition of liquid raw materials.

[0014] 3. By setting the second stirring shaft, second stirring blades, and water inlet, adding water into the liquid storage tank through the water inlet, and then rotating the second stirring shaft. The rotation of the second stirring shaft drives the rotation of the second stirring blades to stir the grinding aid and water evenly, thereby realizing the effect of diluting the grinding aid, and the operation steps are simple and convenient to operate. Brief description of the drawings

[0015] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0016] In the above-mentioned drawings: reaction kettle 1, feed inlet 2, first stirring shaft 3, liquid storage tank 4, water inlet 5, second stirring shaft 6, sealing cylinder 7, piston 8, liquid outlet pipe 9, liquid inlet pipe 10, first one-way valve 11, installation cylinder 12, first motor 13, second motor 14, transparent glass 15, first mounting block 16, electric cylinder 17, liquid guide pipe 18, connecting part 1801, working part 1802, liquid outlet hole 19, second mounting block 20, third mounting block 21, first stirring blade 22, second stirring blade 23, second one-way valve 24. Detailed implementation mode

[0017] The technical solutions in the present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Embodiment:

[0019] As Figure 1 shown, a cement grinding aid adding device includes a reaction kettle 1, a feed inlet 2 is opened on the side wall of the reaction kettle 1, a first stirring shaft 3 is rotatably arranged at the bottom inside the reaction kettle 1, and a first stirring blade 22 is fixedly arranged on the first stirring shaft 3; a liquid storage tank 4 is arranged at the outer top of the reaction kettle 1, the bottom wall inside the liquid storage tank 4 is inclined towards the first one-way valve 11, a second stirring shaft 6 is rotatably arranged inside the liquid storage tank 4, a second stirring blade 23 is fixedly arranged on the second stirring shaft 6, and a water inlet 5 is opened on the side wall of the liquid storage tank 4; a sealing cylinder 7 is arranged on one side of the reaction kettle 1, a piston 8 is vertically movably arranged inside the sealing cylinder 7, the piston 8 is in close fit with the inner wall of the sealing cylinder 7, a liquid outlet pipe 9 penetrates through one side of the bottom of the liquid storage tank 4 close to the sealing cylinder 7, and the other end of the liquid outlet pipe 9 is connected to the top of the sealing cylinder 7 in a through manner, a liquid inlet pipe 10 penetrates through one side of the reaction kettle 1 close to the sealing cylinder 7, and the other end of the liquid inlet pipe 10 is connected to one side of the sealing cylinder 7 in a through manner; under the action of gravity, the grinding aid in the liquid storage tank 4, a first one-way valve 11 is arranged in the liquid outlet pipe 9, and the first one-way valve 11 can control the grinding aid to only flow out of the liquid storage tank 4 and flow towards the liquid outlet pipe 9. When the first one-way valve 11 is opened, the grinding aid concentrates and flows towards the liquid outlet pipe 9. A second one-way valve 24 is arranged in the liquid inlet pipe 10, and the second one-way valve 24 can control the grinding aid to only flow out of the sealing cylinder 7 and flow towards the liquid inlet pipe 10.

[0020] By arranging the reaction kettle 1, the feed inlet 2, the first stirring shaft 3, and the first stirring blade 22, rotating the first stirring shaft 3 enables the first stirring blade 22 to mix the cement raw materials and the grinding aid evenly; by arranging the liquid storage tank 4, the sealing cylinder 7, the piston 8, the liquid outlet pipe 9, the liquid inlet pipe 10, the first one-way valve 11, and the second one-way valve 24, moving the piston 8 vertically, the grinding aid in the liquid storage tank 4 enters the sealing cylinder 7 through the liquid outlet pipe 9, and then enters the reaction kettle 1 through the liquid inlet pipe 10, thereby realizing automatic and quantitative addition of the grinding aid.

[0021] By setting the second stirring shaft 6, the second stirring blades 23, and the water inlet 5, water is added into the liquid storage tank 4 through the water inlet 5, and then the second stirring shaft 6 is rotated. The rotation of the second stirring shaft 6 drives the rotation of the second stirring blades 23, so that the grinding aid and water are stirred evenly, thereby achieving the effect of diluting the grinding aid, and the operation steps are simple and easy to operate.

[0022] As Figure 1 As shown, an installation cylinder 12 is fixedly provided at the bottom of the reaction kettle 1. A first motor 13 is arranged in the installation cylinder 12. The first stirring shaft 3 is installed at the output end of the first motor 13, and the first stirring shaft 3 rotates through the top of the installation cylinder 12 and the bottom of the reaction kettle 1. Starting the first motor 13 specifically drives the rotation of the first stirring shaft 3, which is mechanized and automated and easy to operate.

[0023] As Figure 1 As shown, a second motor 14 is provided at the top of the liquid storage tank 4. The second stirring shaft 6 is installed at the output end of the second motor 14, and the second stirring shaft 6 rotates through the top of the liquid storage tank 4. The second motor 14 drives the rotation of the second stirring shaft 6, which is mechanized and automated and easy to operate. As Figure 1 As shown, a transparent glass 15 is embedded in the side wall of the liquid storage tank 4. A volume scale is engraved on the transparent glass 15, and the reading on the volume scale is adapted to the volume in the liquid storage tank 4. The volume of the existing grinding aid in the liquid storage tank 4 can be read through the volume scale, thereby providing data support for subsequent dilution.

[0024] As Figure 1 As shown, a first mounting block 16 and a second mounting block 20 are fixedly provided on the side wall of the reaction kettle 1. The first mounting block 16 is fixedly connected to the sealing cylinder 7, and an electric cylinder 17 is fixedly provided on the second mounting block 20. The output end of the electric cylinder 17 passes through the bottom of the sealing cylinder 7 and is fixedly connected to the piston 8. Starting the electric cylinder 17 specifically drives the piston 8 to move vertically, which is mechanized and automated and easy to operate; the first mounting block 16 and the second mounting block 20 respectively provide support for the sealing cylinder 7 and the electric cylinder 17.

[0025] As Figure 1 As shown, a third mounting block 21 is fixedly provided on the top wall inside the reaction kettle 1. A liquid guide pipe 18 is fixedly provided on the third mounting block 21. The third mounting block 21 provides support for the liquid guide pipe 18. The liquid guide pipe 18 is divided into a connecting portion 1801 and a working portion 1802. The connecting portion 1801 of the liquid guide pipe 18 is connected to the liquid inlet pipe 10 in a through manner. The working portion 1802 of the liquid guide pipe 18 is in a "V" shape, and a liquid outlet hole 19 is opened on the side of the working portion 1802 of the liquid guide pipe 18 facing the first stirring shaft 3.

[0026] The grinding aid in the liquid inlet pipe 10 enters the liquid guide pipe 18, and is divided into two paths through the working part 1802 of the liquid guide pipe 18, and flows out from the liquid outlet hole 19, so that the grinding aid drips more dispersedly on the surface of the cement in the reaction kettle 1, and cooperates with the stirring action of the first stirring blade 22 to make the grinding aid and the cement mix more evenly together.

[0027] Working principle:

[0028] During use, the cement raw materials are injected into the reaction kettle 1 through the feed inlet 2, and then the first motor 13 is started. The output end of the first motor 13 drives the first stirring shaft 3 to rotate, and the rotation of the first stirring shaft 3 drives the first stirring blade 22 to rotate, so as to stir the cement.

[0029] Then open the first one-way valve 11 on the liquid outlet pipe 9, start the electric cylinder 17, and the output end of the electric cylinder 17 vertically pulls down the piston 8. At this time, the air pressure in the sealing cylinder 7 changes, and the grinding aid in the liquid storage tank 4 enters the sealing cylinder 7 through the liquid outlet pipe 9; then close the first one-way valve 11 on the liquid outlet pipe 9, and open the second one-way valve 24 on the liquid inlet pipe 10, start the electric cylinder 17, and the output end of the electric cylinder 17 vertically pushes up the piston 8. At this time, the air pressure in the sealing cylinder 7 changes again, and the grinding aid in the sealing cylinder 7 enters the reaction kettle 1 through the liquid inlet pipe 10.

[0030] The grinding aid in the liquid inlet pipe 10 flows to the connecting part 1801 of the liquid guide pipe 18, and is divided into two paths through the working part 1802 of the liquid guide pipe 18, and flows out from the liquid outlet hole 19, so that the grinding aid and the cement are mixed and stirred together, thereby improving the grinding effect and performance of the cement.

[0031] After adding the grinding aid, when the phenomenon of the current increase of the tail-end elevator or the coarsening of the fineness of the cement finished product occurs, reduce the dosage of the grinding aid until the grinding condition returns to normal; when the mixing of this batch of cement is completed, read the data on the volume scale on the transparent glass 15, and perform subsequent calculations, and then add a certain amount of water into the liquid storage tank 4 through the water inlet 5, and at the same time start the second motor 14. The output end of the second motor 14 drives the second stirring shaft 6 to rotate, and the rotation of the second stirring shaft 6 drives the second stirring blade 23 to rotate, so that the grinding aid and water are stirred evenly to dilute the grinding aid, and thus the whole operation is completed.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A cement grinding aid adding device, characterized in that: It includes a reaction kettle (1), an inlet (2) is opened on the side wall of the reaction kettle (1), a first stirring shaft (3) is rotatably arranged at the bottom inside the reaction kettle (1), and a first stirring blade (22) is fixed on the first stirring shaft (3); a liquid storage tank (4) is arranged at the outer top of the reaction kettle (1), a second stirring shaft (6) is rotatably arranged inside the liquid storage tank (4), a second stirring blade (23) is fixed on the second stirring shaft (6), and a water inlet (5) is opened on the side wall of the liquid storage tank (4); a sealing cylinder (7) is arranged on one side of the reaction kettle (1), a piston (8) is vertically movably arranged inside the sealing cylinder (7), a liquid outlet pipe (9) penetrates through one side of the bottom of the liquid storage tank (4) close to the sealing cylinder (7), the other end of the liquid outlet pipe (9) is connected to the top of the sealing cylinder (7) in a through manner, a liquid inlet pipe (10) penetrates through one side of the reaction kettle (1) close to the sealing cylinder (7), and the other end of the liquid inlet pipe (10) is connected to one side of the sealing cylinder (7) in a through manner; a first one-way valve (11) is arranged inside the liquid outlet pipe (9), and a second one-way valve (24) is arranged inside the liquid inlet pipe (10).

2. The cement grinding aid adding device according to claim 1, wherein: An installation cylinder (12) is fixed at the bottom of the reaction kettle (1), a first motor (13) is arranged inside the installation cylinder (12), the first stirring shaft (3) is installed at the output end of the first motor (13), and the first stirring shaft (3) rotatably penetrates through the top of the installation cylinder (12) and the bottom of the reaction kettle (1).

3. The cement grinding aid adding device according to claim 1, characterized in that: A second motor (14) is arranged at the top of the liquid storage tank (4), the second stirring shaft (6) is installed at the output end of the second motor (14), and the second stirring shaft (6) rotatably penetrates through the top of the liquid storage tank (4).

4. A cement grinding aid adding device according to claim 3, characterized in that: A transparent glass (15) is embedded on the side wall of the liquid storage tank (4), and a volume scale is engraved on the transparent glass (15).

5. The cement grinding aid adding device according to claim 1, characterized in that: A first mounting block (16) and a second mounting block (20) are fixed on the side wall of the reaction kettle (1), the first mounting block (16) is fixedly connected to the sealing cylinder (7), an electric cylinder (17) is fixed on the second mounting block (20), and the output end of the electric cylinder (17) penetrates through the bottom of the sealing cylinder (7) and is fixedly connected to the piston (8).

6. The cement grinding aid adding device according to claim 1, characterized in that: A third mounting block (21) is fixed on the top wall inside the reaction kettle (1), a liquid guide pipe (18) is fixed on the third mounting block (21), the liquid guide pipe (18) is divided into a connecting part (1801) and a working part (1802), the connecting part (1801) of the liquid guide pipe (18) is connected to the liquid inlet pipe (10) in a through manner, the working part (1802) of the liquid guide pipe (18) is in a "V" shape, and liquid outlet holes (19) are opened on one side of the working part (1802) of the liquid guide pipe (18) facing the first stirring shaft (3).

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