CN206716261U - The atomising device of cement grinding aid - Google Patents

Abstract

The utility model discloses an atomization device for a cement grinding aid, which comprises a straight rod, a first cavity is arranged in the straight rod, a stepped rod is arranged in the first cavity, and second cavities are respectively arranged in the stepped rod The second cavity communicates with the third cavity through the second through hole, and the inner wall of the third cavity is provided with the first through hole. The utility model has a simple structure, and the external conduits are respectively connected with the inlet pipe and the liquid inlet pipe, and the high-pressure gas and the cement grinding aid are respectively discharged into the first cavity and the second cavity, and the cement grinding aid is under pressure. Utilize the narrowing of the aperture of the second through hole and the third through hole to carry out two times of atomization to achieve a better atomization effect. By changing the relative position of the fifth through hole and the sixth through hole, the flow rate of air pressure passing through the first through hole can be adjusted to achieve different atomization effects.

Description

Atomization device for cement grinding aid

technical field

The utility model relates to the technical field of atomization equipment, in particular to an atomization device for cement grinding aids.

Background technique

Cement grinding aid is a chemical additive that improves the grinding effect and performance of cement. It can significantly increase the output of cement table, the strength of cement of all ages, and improve its fluidity. Cement grinding aid can greatly reduce the formation of The phenomenon of electrostatic adsorption and encapsulation of balls can reduce the tendency of re-agglomeration of ultrafine particles formed during the grinding process. Cement grinding aids can also significantly improve the fluidity of cement, improve the grinding effect of the mill and the powder selection of the powder classifier Efficiency, thereby reducing grinding energy consumption, the cement produced by using grinding aids has a lower tendency of compaction and agglomeration, which is beneficial to the loading and unloading of cement, and can reduce the wall hanging phenomenon of cement silos; the existing cement grinding aids The advanced atomization structure can only achieve one atomization, and the atomization effect is poor. At the same time, the atomization effect cannot be adjusted according to the actual situation.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a cement grinding aid atomization device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an atomization device for cement grinding aids, including a straight rod, a first cavity is arranged in the straight rod, a stepped rod is arranged in the first cavity, and a step A second cavity and a third cavity are respectively arranged in the rod, and the second cavity and the third cavity communicate through the second through hole, the inner wall of the third cavity is provided with the first through hole, and the inner wall of the third cavity The side away from the second through hole is provided with a third through hole, the outer side of the stepped rod is provided with a liquid inlet pipe, the outer side of the straight rod is provided with an air inlet pipe, and the end of the liquid inlet pipe away from the stepped rod runs through the first cavity. Inner wall, the liquid inlet pipe communicates with the second cavity, the inlet pipe communicates with the first cavity, the inner wall of the first cavity is provided with a fourth through hole on the side close to the third through hole, and the ladder rod is fixed A fixed ring is sleeved, and the fixed ring is provided with a sixth through hole. The fixed ring runs through the inner wall of the first cavity. The outer ring of the fixed ring is provided with an annular groove, and a rotating ring is arranged in the annular groove. device, the inner bottom of the annular groove is provided with a mounting groove, the inner bottom of the mounting groove is connected with a slide bar through a first spring, the slide bar is provided with a fifth through hole corresponding to the sixth through hole, and the inner wall of the rotating ring A chute corresponding to the slide bar is provided.

Further, the diameter of the third through hole is smaller than the diameter of the fourth through hole.

Preferably, the number of the sliding bars is at least four, and the plurality of sliding bars are equidistantly distributed in a ring.

Wherein, the fixing device includes two symmetrically arranged L-shaped clamping rods, and the two L-shaped clamping rods are connected by a second spring. The rotating ring is provided with a placement groove corresponding to the L-shaped clamping rods. The inner wall of the groove is provided with a sliding opening corresponding to the L-shaped clamping rod, and the inner wall of the annular groove is provided with a clamping groove corresponding to the L-shaped clamping rod.

Compared with the prior art, the beneficial effect of the utility model is: the utility model has a simple structure, and is respectively connected with the inlet pipe and the liquid inlet pipe through the external conduit, and the high-pressure gas and the cement grinding aid are discharged into the first cavity and the first cavity respectively. In the second cavity, under the action of pressure, the cement grinding aid uses the diameter of the second through hole and the third through hole to narrow and atomize twice to achieve a better atomization effect. At the same time, the L-shaped card is used to The relationship between the rod, the second spring, the rotating ring, the sliding rod and the first spring can change the relative position of the fifth through hole and the sixth through hole, and then adjust the flow rate of the air pressure through the first through hole to achieve different atomization Effect.

Description of drawings

Fig. 1 is the structural representation that the utility model proposes;

Fig. 2 is the enlarged structural diagram of part B in Fig. 1;

Fig. 3 is a schematic cross-sectional view along line A-A in Fig. 1 .

Explanation of reference signs:

1. Step bar; 2. Inlet pipe; 3. First cavity; 4. First through hole; 5. First spring; 6. Second cavity; 7. Liquid inlet pipe; 8. Straight rod; 9. The second through hole; 10, the third cavity; 11, the fixed ring; 12, the third through hole; 13, the fourth through hole; 14, the fifth through hole; 15, the sixth through hole; 16, the rotating ring; 17, a slide bar; 18, an L-shaped locking bar; 19, a second spring.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, an atomization device for cement grinding aids includes a straight rod 8, a first cavity 3 is arranged in the straight rod 8, a stepped rod 1 is arranged in the first cavity 3, and a stepped rod 1 is arranged in the stepped rod 1 A second cavity 6 and a third cavity 10 are respectively provided, and the second cavity 6 and the third cavity 10 are communicated through a second through hole 9, and the inner wall of the third cavity 10 is provided with a first through hole 4, and the second cavity 10 is provided with a first through hole 4. The inner wall of the three cavities 10 is provided with a third through hole 12 away from the side of the second through hole 9, and the aperture of the third through hole 12 is smaller than the aperture of the fourth through hole 13, so as to speed up the flow rate of the mixed liquid and facilitate the mixing of the liquid The outer side of the stepped rod 1 is provided with a liquid inlet pipe 7, and the outer side of the straight rod 8 is provided with an air inlet pipe 2, and the end of the liquid inlet pipe 7 away from the stepped rod 1 runs through the inner wall of the first cavity 3, and the liquid inlet pipe 7 and the The second cavity 6 communicates, the air intake pipe 2 communicates with the first cavity 3, the inner wall of the first cavity 3 is provided with a fourth through hole 13 near the side of the third through hole 12, and the stepped rod 1 is fixedly sleeved with The fixing ring 11 is provided with a sixth through hole 15 , and the fixing ring 11 passes through the inner wall of the first cavity 3 .

The outer ring of the fixed ring 11 is provided with an annular groove, and a rotating ring 16 is arranged in the annular groove, and a fixing device is provided on the rotating ring 16. Connected by the second spring 19, the rotating ring 16 is provided with a placement groove corresponding to the L-shaped lever 18, the inner wall of the placement groove is provided with a slide corresponding to the L-shaped lever 18, and the inner wall of the annular groove is provided with a sliding opening corresponding to the L-shaped lever 18. There is a draw-in groove corresponding to the L-shaped clamp bar 18, which is convenient for fixing the rotating ring 16. The inner bottom of the annular groove is provided with a mounting groove, and the inner bottom of the mounting groove is connected with a slide bar 17 by the first spring 5, and the slide bar 17 is provided with a slide bar 17. There is a fifth through hole 14 corresponding to the sixth through hole 15, and the inner wall of the rotating ring 16 is provided with a chute corresponding to the slide bar 17, the number of the slide bar 17 is at least four, and one of the plurality of slide bars 17 The spaces are distributed in an equidistant ring, and there are enough air holes to facilitate the adjustment of the airflow.

The working principle of the utility model is as follows: respectively connect the inlet pipe 2 and the liquid inlet pipe 7 through external conduits, discharge the high-pressure gas and the cement grinding aid into the first cavity 3 and the second cavity 6 respectively, and the cement grinding aid Under the action of pressure, the agent is atomized for the first time by narrowing the aperture of the second through hole 9 and enters the third cavity 10, while the high-pressure gas enters the third cavity 10 through the first through hole 4, and is mixed with the mist. The melted cement grinding aid is mixed again, and under the push of strong air pressure, the cement grinding aid is atomized for the second time by using the aperture narrowing of the third through hole 12, and is discharged from the fourth through hole 13. During this process , push the two L-shaped clamping rods 18 close, compress the second spring 19, separate the L-shaped clamping rod 18 from the slot, rotate the rotating ring 16, and the sliding rod 17 is installed under the action of the first spring 5 and the chute. The movement in the groove changes the relative position of the fifth through hole 14 and the sixth through hole 15, and then adjusts the flow rate of air pressure passing through the first through hole 4 to achieve different atomization effects.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (4)

1. an atomizing device for cement grinding aids, comprising a straight rod (8), characterized in that a first cavity (3) is provided in the straight rod (8), and a first cavity (3) is provided in the first cavity (3). The ladder bar (1), the second cavity (6) and the third cavity (10) are respectively arranged in the ladder bar (1), and the second cavity (6) and the third cavity (10) pass through the second channel The holes (9) are connected, the inner wall of the third cavity (10) is provided with a first through hole (4), and the inner wall of the third cavity (10) is provided with a third through hole on the side away from the second through hole (9). hole (12), the outer side of the ladder rod (1) is provided with a liquid inlet pipe (7), the outer side of the straight rod (8) is provided with an air inlet pipe (2), and the liquid inlet pipe (7) is far away from the ladder rod (1) One end runs through the inner wall of the first cavity (3), the liquid inlet pipe (7) communicates with the second cavity (6), the inlet pipe (2) communicates with the first cavity (3), and the first cavity The inner wall of (3) is provided with a fourth through hole (13) near the side of the third through hole (12). A sixth through hole (15) is provided, the fixed ring (11) runs through the inner wall of the first cavity (3), the outer ring of the fixed ring (11) is provided with an annular groove, and a rotating ring (16) is arranged in the annular groove, Rotating ring (16) is provided with fixture, and the inner bottom of annular groove is provided with installation groove, and the inner bottom of installation groove is connected with slide bar (17) by first spring (5), and slide bar (17) is provided with The sixth through hole (15) corresponds to the fifth through hole (14), and the inner wall of the rotating ring (16) is provided with a slide groove corresponding to the slide bar (17). 2. The atomization device for cement grinding aid according to claim 1, characterized in that, the aperture of the third through hole (12) is smaller than the aperture of the fourth through hole (13). 3. The atomization device of cement grinding aid according to claim 1, characterized in that, the number of said slide bars (17) is at least four, and an equidistant ring is formed between a plurality of slide bars (17). distributed. 4. The atomization device of cement grinding aid according to claim 1, characterized in that, said fixing device comprises two symmetrically arranged L-shaped clamping rods (18), and one of the two L-shaped clamping rods (18) They are connected by the second spring (19), the rotating ring (16) is provided with a placement groove corresponding to the L-shaped clamping rod (18), and the inner wall of the placement groove is provided with a corresponding to the L-shaped locking rod (18). The sliding opening, the inner wall of the annular groove is provided with a card slot corresponding to the L-shaped bar (18).