Anti-condensation type cement grinding mill powder concentrator

Abstract

The utility model discloses an anti-condensation type cement grinding mill powder concentrator, relates to the technical field of powder concentrators, and aims to solve the problems that the feeding position is fixed at present, the scattering position of materials on a disc surface is difficult to realize uniform distribution, the powder concentration efficiency and the powder concentration effect are difficult to realize, airflow circulation is blocked, the low temperature phenomenon occurs in a local area, and the powder concentration effect is poor. The device comprises a shell, a feeding mechanism and a powder selecting mechanism, the feeding mechanism and the powder selecting mechanism are arranged in the shell, the powder selecting mechanism comprises a rotating shaft and a plurality of flow deflectors, the rotating shaft is rotationally installed on the inner wall of the upper end of the shell, and the feeding mechanism comprises a material distributing disc installed on the rotating shaft. The device has the advantages that the problem of moisture condensation of the powder concentrator of the cement grinding mill can be solved, materials are uniformly distributed through the material distribution disc, local low temperature caused by material accumulation blocking airflow is avoided, the airflow path is optimized through the spiral flow deflectors, uneven temperature caused by airflow turbulence is prevented, the possibility of water vapor condensation is reduced through cooperation of the spiral flow deflectors and the spiral flow deflectors, and stable operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a powder concentrator technical field, more specifically, relate to a kind of cement mill powder concentrator of dew condensation prevention. BACKGROUND

[0002] In the cement production process, as key equipment, cement powder concentrator undertakes the important task of material classification, the current cement powder concentrator generally exists the problem of fixed feeding position, even if the material disc continues to rotate, the position of material on the disc surface still difficult to achieve uniform distribution, this unevenness can cause material in the powder concentrator to be unable to fully disperse and classify, and further affect the powder concentration efficiency and product quality, at the same time, uneven material distribution can also hinder the normal flow of air in the powder concentrator, causing low temperature in local area, and further causing dew condensation problem. In view of this, we propose a kind of cement mill powder concentrator of dew condensation prevention. SUMMARY

[0003] The utility model aims at overcoming the deficiency of prior art, adapting to reality needs, provide a kind of cement mill powder concentrator of dew condensation prevention, to solve the current setting feeding position fixed, material on the disc surface is difficult to achieve uniform distribution not only powder concentration efficiency, effect, also hinder the flow of air, cause low temperature in local area, and further cause dew condensation technical problem.

[0004] To solve the above technical problems, the utility model provides the following technical scheme: a kind of cement mill powder concentrator of dew condensation prevention, including shell and the feeding mechanism and powder concentration mechanism of shell inner setting, the lower position of the side end of the shell is arrayed and is provided with air inlet pipe, the lower end of the shell is provided with coarse material pipe, the upper position in the shell is provided with discharge cover shell, the side end of the discharge cover shell is installed with the fine material pipe extending out of the shell, the powder concentration mechanism includes rotating shaft and several guide vanes, the rotating shaft is rotatably installed on the upper end inner wall of shell, the upper end of the shell is provided with motor for driving rotating shaft, the rotating shaft is installed with cage rotor, the cage rotor is below discharge cover shell, the end of the rotating shaft is installed with material disc, the feeding mechanism includes the distribution disc installed on the rotating shaft, the distribution disc is located in the upper position in discharge cover shell.

[0005] Preferably, the guide vane is installed on the inner wall of the shell, the guide vane is spirally arranged from top to bottom, and a spiral air flow channel is formed between the guide vanes.

[0006] Preferably, the abutment portion is recessed on the upper end of the guide vane, the horizontal portion is protrudingly arranged on the upper end of the abutment portion on one side of the guide vane, the upper end of the abutment portion is close to the lower end of the material disc, and the upper end of the horizontal portion is flush with the material disc.

[0007] Preferably, the whole of the distribution disc is annularly arranged, the lower end of the distribution disc is provided with a convex portion, the convex portion is arcuately arranged, and the upper end of the distribution disc is provided with an annular material port.

[0008] Preferably, the upper end of the shell is provided with a feeding pipe on one side, the upper end of the feeding pipe is circularly arranged, the lower end of the feeding pipe is provided with an arc-shaped opening, and the arc-shaped opening of the lower end of the feeding pipe corresponds to the position of the annular material port of the distribution disc.

[0009] Preferably, the lower end of the distribution disc is provided with a distribution pipe at the position of the convex portion, the distribution pipe is arcuately arranged from top to bottom and bends inward, and the tail end of the distribution pipe is directed to the center position of the distribution disc.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1、The utility model discloses a distribution disc structure, cement enters the annular material port from the feeding pipe, utilizes the rotary distribution disc, arc convex portion and the distribution pipe that bends inward, makes material even more evenly fall in the middle position of the material distribution disc, and then is evenly thrown by the material distribution disc, and the uniform material distribution avoids the situation that the air flow circulation is hindered because of material accumulation, prevents the low temperature phenomenon of local area because of the air flow not being smooth, reduces the inducement of dew from the root, solves the current fixed setting of the feeding position, and the position of material distribution on the disc surface is difficult to realize even distribution not only selects the powder efficiency, effect, but also hinders the air flow circulation, leads to the low temperature phenomenon of local area, and then causes the problem of dew.

[0012] 2、The utility model discloses a guide vane structure, and a plurality of helically arranged guide vanes constitute a helical air flow channel, guide the air flow along a specific helical path, make the air flow orderly distribute in the powder selecting machine, avoid the air flow turbulence and local vortex, and simultaneously, the guide vane adhering portion and horizontal portion cooperate with the material distribution disc, assist guiding the material that is thrown, make the material more reasonable dispersion and classification in the air flow, and the optimized air flow flow path is helpful to keep the temperature in the powder selecting machine relatively uniform, avoids the water vapor condensation caused by local low temperature, further reduces the possibility of dew, guarantees the normal operation of the powder selecting machine and equipment service life. ACCURATE DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a sectional view structural schematic diagram of the utility model;

[0015] Figure 3 It is an internal structure schematic diagram of the utility model;

[0016] Figure 4The utility model discloses a schematic diagram of the scattering disc and the guide vane structure of the utility model;

[0017] Figure 5 The utility model discloses a schematic diagram of the bottom structure of the scattering disc and the guide vane of the utility model;

[0018] Figure 6 The utility model discloses a schematic diagram of the guide vane structure of the utility model;

[0019] Figure 7 The utility model discloses a schematic diagram of the feeding mechanism structure of the utility model;

[0020] Figure 8 The utility model discloses a schematic diagram of the bottom structure of the feeding mechanism of the utility model.

[0021] Mark number explanation: 101, shell, 102, fine material pipe, 103, coarse material pipe, 104, air inlet pipe, 105, feeding pipe, 106, discharge cover, 200, feeding mechanism, 201, distributing disc, 2011, convex part, 2012, annular material port, 202, distributing pipe, 300, powder selecting mechanism, 301, rotating shaft, 302, motor, 303, cage rotor, 304, scattering disc, 305, guide vane, 3051, fitment, 3052, horizontal part, 306, spiral air flow channel. DETAILED DESCRIPTION

[0022] As Figures 1 to 8The utility model relates to a kind of anti-condensation cement mill powder concentrator, including shell 101 and the feed mechanism 200 and powder concentration mechanism 300 being arranged in shell 101, the side end lower part position of shell 101 is arrayed and is provided with air inlet pipe 104, the lower end of shell 101 is provided with coarse material pipe 103, the upper position in shell 101 is provided with discharge cover shell 106, discharge cover shell 106 side end is installed and extends out the fine material pipe 102 of shell 101, powder concentration mechanism 300 includes rotating shaft 301 and several guide vanes 305, rotating shaft 301 is rotatably installed on the upper end inner wall of shell 101, the upper end of shell 101 is provided with motor 302 for driving rotating shaft 301, rotating shaft 301 is installed with cage rotor 303, cage rotor 303 is below discharge cover shell 106, cage rotor 303 when rotating, it will drive the air flow around, form specific airflow field, it makes airflow form uniform stable ascending airflow inside powder concentrator, provides necessary power and flow field environment for the classification of material, so that material can be fully dispersed and suspended in airflow, the end of rotating shaft 301 is installed with scattering disc 304, feed mechanism 200 includes distributing disc 201 being installed on rotating shaft 301, distributing disc 201 is located in the upper position in discharge cover shell 106.The utility model solves the problem of condensation of cement mill powder concentrator by the innovative design of distributing disc 201 and guide vane 305, distributing disc 201 realizes uniform distribution of material, avoids local low temperature caused by material accumulation to hinder airflow, spiral guide vane 305 optimizes airflow path, prevents temperature uneven caused by airflow turbulence, both synergistically reduce the possibility of water vapor condensation, ensure the stable operation of equipment.

[0023] Specifically, the guide vane 305 is installed on the inner wall of the shell 101, the guide vane 305 is spirally arranged from top to bottom, and the spiral air flow channel 306 is formed between the guide vanes 305. The guide vane 305 includes a fitting portion 3051 and a horizontal portion 3052. The guide vane 305 is spirally arranged from top to bottom, and the spiral air flow channel 306 is formed between the guide vanes 305. This spiral arrangement can guide the airflow to flow along a specific spiral path, making the airflow more orderly distributed inside the powder concentrator, avoiding the turbulence of airflow and the generation of local vortex, which helps to improve the flow efficiency of airflow and provide a more stable and uniform airflow environment for the powder selection process of material, thereby improving the powder selection effect and efficiency. Secondly, by optimizing the flow path of airflow, the low temperature phenomenon caused by poor airflow in local area is avoided, and the occurrence of condensation is reduced. Because condensation is often caused by local low temperature, the reasonable guidance of airflow by the guide vane 305 helps to keep the temperature inside the powder concentrator relatively uniform, thereby reducing the possibility of condensation and ensuring the normal operation of the powder concentrator and the service life of the equipment.

[0024] Further, the fitting part 3051 is recessed on the upper end of the guide vane 305, the horizontal part 3052 is protruding on the upper end of the fitting part 3051 on one side of the guide vane 305, the upper end of the fitting part 3051 is close to the lower end of the spreading disc 304, and the upper end of the horizontal part 3052 is flush with the spreading disc 304. The structure design of the fitting part 3051 and the horizontal part 3052 of the guide vane 305 can better cooperate with the work of the spreading disc 304. When the spreading disc 304 rotates to spread the material, the guide vane 305 can assist in guiding the spread material, so that the material is more reasonably dispersed and classified under the action of the airflow, reducing the uneven distribution of the material, and further improving the quality and efficiency of powder selection.

[0025] It is worth mentioning that the whole of the distributing disc 201 is annularly arranged, the lower end of the distributing disc 201 is arrayed with a protruding part 2011, the protruding part 2011 is arcuately arranged, and the upper end of the distributing disc 201 is provided with an annular material port 2012. After the cement is added from the feeding pipe 105, it can enter the rotating distributing disc 201 from the annular material port 2012. The rotating distributing disc 201 can uniformly spread the cement, and the setting of the protruding part 2011 can facilitate the spreading of the distributing disc 201 and prevent the cement from accumulating in the distributing disc 201. Through the rotating feeding mode, the material can be more reasonably distributed when it is spread, reducing the uneven distribution of the material. Not only can it improve the quality and efficiency of powder selection, but also can avoid the uneven distribution of the material hindering the airflow circulation, preventing the generation of local low temperature, thereby reducing the possibility of dewing.

[0026] It is worth mentioning that the upper end of the shell 101 is provided with a feeding pipe 105, the upper end of the feeding pipe 105 is circularly arranged, the lower end of the feeding pipe 105 is provided with an arc-shaped opening, and the arc-shaped opening at the lower end of the feeding pipe 105 corresponds to the position of the annular material port 2012 of the distributing disc 201. The cement is added from the feeding pipe 105, and the added cement can enter the annular material port 2012 from the arc-shaped opening at the lower end of the feeding pipe 105, and the distributing disc 201 can uniformly feed the cement.

[0027] It is worth noting that the lower end of the distributing disc 201 is provided with a distributing pipe 202 at the position of the protruding part 2011, the distributing pipe 202 is arcuately arranged from top to bottom, and the end of the distributing pipe 202 faces the center position of the distributing disc 201. The distributing pipe 202 guides the falling direction of the material, so that the material is spread inward, which can facilitate the airflow to directly discharge some fine materials from the fine material pipe 102. Furthermore, the cement after falling will be located at the middle position of the spreading disc 304, further optimizing the uniformity of the spreading of the spreading disc 304, and reasonable distribution of the material helps to optimize the airflow circulation environment in the powder concentrator, avoiding airflow turbulence and local vortex caused by material accumulation or uneven distribution, preventing low temperature in local area due to poor airflow, reducing the risk of dewing, and ensuring the normal operation of the powder concentrator.

[0028] Working principle: the embodiment provides a dew-proof cement mill powder concentrator, when the motor 302 works, the rotating shaft 301 rotates, so that the cage rotor 303, the distributing disc 201 and the material distributing disc 304 can rotate, the external air enters from the air inlet pipe 104, the cage rotor 303 forms upward air flow to concentrate the cement, the cement is added through the feeding pipe 105, because the arc-shaped opening at the lower end of the feeding pipe 105 corresponds to the position of the annular material port 2012 of the distributing disc 201, the cement can enter the rotating distributing disc 201 from the annular material port 2012 smoothly, the arc-shaped convex parts 2011 arranged at the lower end of the distributing disc 201 help to uniformly distribute the cement and prevent the cement from accumulating in the distributing disc 201, at the same time, the distributing pipe 202 installed at the position of the convex part 2011 is curved from top to bottom to the inside and the end is directed to the center of the distributing disc 201, the structure guides the material to be distributed to the inside, so that the cement falls in the middle position of the material distributing disc 304, and the uniformity of the material distribution of the material distributing disc 304 is further optimized, when the material distributing disc 304 rotates, the material is thrown outwards, at this time, the guide vane 305 installed in the inner wall of the shell 101 plays a role, the guide vane 305 is spirally arranged from top to bottom, the special structure of the abutting part 3051 and the horizontal part 3052 can assist in guiding the distributed material, so that the material is more reasonably dispersed under the action of the air flow, at the same time, the spiral air flow channel 306 formed between the guide vanes 305 guides the air flow to flow along a specific spiral path, so that the air flow is more orderly distributed in the powder concentrator, the generation of air flow disorder and local vortex is avoided, under the action of the air flow, the finer material can smoothly pass through the cage rotor 303, enter the discharge cover 106 and finally be discharged from the fine material pipe 102 at the side end, and the coarser material cannot be taken away by the air flow due to its greater gravity, falls to the lower end of the shell 101 under the action of gravity and is discharged through the coarse material pipe 103, the uniform material distribution and the orderly air flow flow improve the quality and efficiency of the powder concentration, and the reasonable air flow guidance avoids the low temperature phenomenon in the local area caused by the poor air flow, reduces the dew problem and ensures the normal operation of the powder concentrator and the service life of the equipment.

[0029] The embodiments of the utility model discloses are preferable, but are not limited to this, and the ordinary skilled in the art can easily understand the spirit of the utility model and make different inferences and changes according to the above-mentioned embodiments, but as long as not departing from the spirit of the utility model, are within the protection scope of the utility model.

Claims

1. A dew condensation preventing type cement mill classifier, characterized by, The utility model provides a kind of powder selecting device, including shell (101) and be provided with feed mechanism (200) and powder selecting mechanism (300) in shell (101), the side end lower position of the shell (101) is provided with air inlet pipe (104) in array, the lower end of the shell (101) is provided with coarse material pipe (103), the upper position in the shell (101) is provided with discharge cover shell (106), the side end of the discharge cover shell (106) is installed with the fine material pipe (102) extending out of shell (101), the powder selecting mechanism (300) includes rotating shaft (301) and several guide vanes (305), the rotating shaft (301) is rotatably installed in the upper end inner wall of shell (101), the upper end of the shell (101) is provided with motor (302) for driving rotating shaft (301), the rotating shaft (301) is installed with cage rotor (303), the cage rotor (303) is below discharge cover shell (106), the end of the rotating shaft (301) is installed with spreading disc (304), the feed mechanism (200) includes distributing disc (201) installed on rotating shaft (301), and the distributing disc (201) is located in the upper position in discharge cover shell (106).

2. The anti-condensation type cement mill powder selection machine according to claim 1, characterized in that, The guide vane (305) is installed on the inner wall of the shell (101), the guide vane (305) is spirally arranged from top to bottom, and a spiral air flow channel (306) is formed between the guide vanes (305).

3. The anti-condensation cement mill powder concentrator according to claim 2, characterized in that, The fitting part (3051) is recessed on the upper end of the guide vane (305), and the horizontal part (3052) is protruded on the upper end of the fitting part (3051) on one side of the guide vane (305), the upper end of the fitting part (3051) is close to the lower end of the spreading disc (304), and the upper end of the horizontal part (3052) is flush with the spreading disc (304).

4. The anti-condensation cement mill powder selection machine according to claim 3, characterized in that, The distributing disc (201) is annularly arranged, the lower end of the distributing disc (201) is arrayed with a protruding part (2011), the protruding part (2011) is arc-shaped, and the upper end of the distributing disc (201) is provided with an annular material port (2012).

5. The anti-condensation cement mill powder concentrator according to claim 4, characterized in that, The upper end of the feed pipe (105) is circular, the lower end of the feed pipe (105) is provided with an arc-shaped opening, and the arc-shaped opening at the lower end of the feed pipe (105) corresponds to the position of the annular material port (2012) of the distributing disc (201).

6. The anti-condensation cement mill powder concentrator according to claim 5, characterized in that, The lower end of the distributing disc (201) is installed with a distributing pipe (202) at the position of the protruding part (2011), the distributing pipe (202) is inwardly curved from top to bottom, and the end of the distributing pipe (202) is towards the center of the distributing disc (201).

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