CN210787592U

CN210787592U - High-efficient horizontal sand mill

Info

Publication number: CN210787592U
Application number: CN201920790275.8U
Authority: CN
Inventors: 张新国; 王甘震
Original assignee: Dongguan Nayu Chemical Co ltd
Current assignee: Dongguan Nayu Chemical Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-06-19
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses a high-efficiency horizontal sand mill, which comprises a mill body and a motor, wherein the driving end of the motor is connected with a rotating shaft through a fixed sleeve, one side of the motor is provided with a forward rotating blade, and the other side of the motor is provided with a reverse rotating blade; one end of the machine body close to the motor is wrapped with a first jacket, the other end of the machine body is wrapped with a second jacket, and a connecting transverse pipe is arranged between the first jacket and the second jacket; a feed inlet is arranged on one side, close to the first jacket, above the machine body, and a material distribution pipe is arranged at the lower end of the feed inlet; a discharging pipe is arranged on one side, close to the second jacket, of the lower portion of the machine body, a filtering support is arranged below the discharging valve, and a filtering screen is arranged on the filtering support. The utility model discloses can effectually solve the too high problem of temperature in the coating production process to and the great problem of the unable clean-up of coating of mesh number before the sand mill shuts down, the utility model discloses, easy operation, energy resource consumption is lower, can satisfy the demand in existing market, can produce better economic benefits.

Description

High-efficient horizontal sand mill

Technical Field

The utility model relates to a coating production facility, concretely relates to high-efficient horizontal sand mill.

Background

The sand mill is the grinding equipment with the widest, most advanced and highest efficiency of the coating at present, wherein the horizontal sand mill is popular with most coating manufacturers due to the fact that the horizontal sand mill occupies a small area and is easy to operate; in order to increase the grinding effect, a large amount of zirconium beads are often filled in the sand mill, and because the coating production belongs to continuous production operation, the long-time friction among the zirconium beads, the rotating shaft and the coating can increase the temperature of the coating, and finally the quality of the finished coating can be affected. In order to solve the problem, some enterprises adopt a method of adding a cooling water pump beside a sand mill for cooling, so that some effects are achieved, but some disadvantages exist, firstly, the addition of the cooling water pump objectively increases the electricity consumption, the cooling water pump is required to be started after the temperature of the coating is increased, the temperature of the coating is reduced after the coating is operated for a period of time, the pump is required to be stopped, one team and team need to operate the cooling water pump for many times, and the workload of operators is increased. Secondly, the increase of the cooling water pump occupies a certain space, which brings inconvenience for the maintenance work of the sand mill in the future.

In addition, when the sand mill is overhauled, the sand mill needs to be stopped, the sand mill is not operated according to normal process indexes within a period of time before being stopped, particularly within 1 hour before being stopped, the feeding amount, the temperature and the motor rotating speed of the coating are all lower than the normal process indexes, and the coating with a large number of meshes exists in the sand mill.

SUMMERY OF THE UTILITY MODEL

The inventor finds that the temperature rise of the coating shows regional change in long-term production, wherein the temperature of the head end and the tail end of the sand mill is the highest, and the temperature of the middle region is slightly higher than the process index. The reason is that the paint inlet is often arranged above the head end of the sand mill, namely the end close to the output end of the motor, and the stirring shaft and the stirring blade are seriously abraded under the long-term flushing of the paint, so that the grinding efficiency is lowered, and the temperature of the head end is obviously raised; the tail end is far away from the output end of the motor, so that the production load of the rotating shaft and the rotating blade is large, and the temperature of the tail end is obviously increased.

In order to solve the problems in the background art, in combination with the findings of the inventors, a high-efficiency horizontal sand mill was developed.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-efficiency horizontal sand mill comprises a mill body and a motor, wherein a driving end of the motor is connected with a rotating shaft through a fixed sleeve, a middle point of the rotating shaft is taken as a boundary, a forward rotating blade is arranged on one side, and a reverse rotating blade is arranged on the other side; a first jacket is wrapped at one end of the machine body close to the motor, a second jacket is wrapped at the other end of the machine body, a blowdown valve is installed under the first jacket, a water inlet valve is installed under the second jacket, an overflow valve is installed over the second jacket, a horizontal connecting pipe is arranged between the first jacket and the second jacket, and a horizontal connecting valve is installed at the midpoint of the horizontal connecting pipe;

a feed inlet is arranged on one side, close to the first jacket, above the machine body, the feed inlet is horn-shaped, a material distribution pipe is arranged at the lower end of the feed inlet, the inclination angle of the material distribution pipe is A, the range of A is 70-80 degrees, and distribution holes are formed in the lower end of the material distribution pipe; a discharging pipe is arranged on one side, close to the second jacket, below the machine body and connected with the machine body through a discharging valve, a filtering support is arranged below the discharging valve, and a filtering screen is arranged on the filtering support.

Further, according to the observation and study of the inventor, the cooling water in the first jacket and the second jacket is filled once, so that the cooling water can be used by one team.

Furthermore, the horizontal connecting pipe is positioned at the right lower part of the sand mill.

Further, the forward rotating blades and the reverse rotating blades are fixed on the rotating shaft through bolts, the outer edges of the forward rotating blades and the reverse rotating blades are in a sawtooth shape, and the angle between the axial center line of the forward rotating blades and the axial center line of the reverse rotating blades and the axial center line of the rotating shaft is 30 degrees.

Further, a plurality of zirconium beads are filled in the machine body.

Furthermore, the pipe diameter of the horizontal connecting pipe is 25 mm.

Furthermore, the diameters of the water inlet valve, the sewage discharge valve and the overflow valve are 40 mm.

Further, the pipe diameter of material distribution pipe is 50mm, the aperture of distribution hole is 10mm, the quantity of distribution hole is 5 at least.

Furthermore, the bleeder valve is the ball valve, and the diameter is 80mm, filter the support and pass through the screw fixation on the inner wall of discharging pipe.

Furthermore, the filtering bracket is shaped like a Chinese character jing.

Compared with the prior art, the utility model discloses following beneficial effect has: 1. the first jacket and the second jacket are installed at the head end and the tail end of the sand mill, the blow-down valve is closed, the overflow valve and the connecting cross valve are opened, cooling water reaches the inside of the first jacket and the second jacket from the lower part of the second jacket through the water inlet valve, and the overflow valve is closed after the water flows out of the overflow valve. Therefore, the first jacket and the second jacket can be fully filled with water, and a dry area is effectively avoided; the internal volumes of the first jacket and the second jacket are small, the water consumption is low, after the water temperature rises, the blow-down valve is opened, and one team can ensure production only by adding water once.

2. The material distribution pipe is installed at the lower end of the feeding port, and the coating flows out in sequence through the distribution hole, so that the erosion of the coating to the rotating shaft and the rotating blade is effectively reduced, and the service life of the equipment is prolonged.

3. The filter support is arranged on the discharge pipe, so that the filter screen with a larger mesh can be replaced within a period of time before the sand mill stops, particularly within 1 hour, the smooth flowing of the coating with the larger mesh is facilitated, and convenience is brought to subsequent maintenance work.

4. To sum up, the utility model discloses, easy operation, energy resource consumption is lower, can satisfy the demand in existing market, can produce better economic benefits.

Drawings

Fig. 1 is a schematic view of the structure of the jacket of the present invention.

Fig. 2 is a schematic diagram of the feeding and discharging structure of the present invention.

Fig. 3 is a schematic view of a rotating shaft structure.

Fig. 4 is a schematic structural diagram of the material distribution pipe.

Fig. 5 is a schematic structural view of the discharge duct.

Fig. 6 is a schematic structural view of a filter holder.

Reference numerals: 1. the device comprises a motor, a fixed sleeve, a machine body, a rotating shaft, a forward rotating blade, a reverse rotating blade, a first jacket, a second jacket, a water inlet valve, a water outlet valve, a blowdown valve, a discharge valve, an overflow valve, a discharge pipe, a material distribution pipe, a discharge hole, a discharge pipe, a discharge valve, 1702, a filter screen, 1703 and a filter support, wherein the motor is connected with the discharge pipe, the discharge valve is connected with the discharge pipe, and the discharge pipe is connected with the discharge valve. 18. Zirconium beads.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; all other embodiments, modifications, equivalents, improvements and the like which are obvious to those skilled in the art based on the embodiments of the present invention without any creative work should be included in the protection scope of the present invention.

As shown in fig. 1, 2, 5 and 6, a high-efficiency horizontal sand mill comprises a machine body 3 and a motor 1, wherein a driving end of the motor 1 is connected with a rotating shaft 4 through a fixed sleeve 2, a forward rotating blade 5 is installed on one side and a reverse rotating blade 6 is installed on the other side by taking the midpoint of the rotating shaft 4 as a boundary; one end of the machine body 3, which is close to the motor 1, is wrapped by a first jacket 7, the other end of the machine body is wrapped by a second jacket 8, a blowdown valve 10 is installed right below the first jacket 7, a water inlet valve 9 is installed right below the second jacket 8, an overflow valve 11 is installed right above the second jacket 8, a connecting horizontal pipe 12 is arranged between the first jacket 7 and the second jacket 8, and a connecting horizontal valve 13 is installed at the middle point of the connecting horizontal pipe 12;

a feed inlet 14 is arranged on one side, close to the first jacket 7, above the machine body 3, the feed inlet 14 is horn-shaped, a material distribution pipe 15 is arranged at the lower end of the feed inlet 14, the inclination angle of the material distribution pipe 15 is A, the range of A is 70-80 degrees, and distribution holes 16 are formed in the lower end of the material distribution pipe 15; a discharge pipe 17 is arranged on one side, close to the second jacket 8, below the machine body 3, the discharge pipe 17 is connected with the machine body 3 through a discharge valve 1701, a filter support 1703 is arranged below the discharge valve 1701, and a filter screen 1702 is arranged on the filter support.

When the device is used, the overflow valve 11, the water inlet valve 9 and the transverse connecting valve 13 are opened, the blow-down valve 10 is closed, the water inlet valve 9 is connected with a water pipe in a production field through a hose, the water inlet valve 9 and the overflow valve 11 are closed in sequence after water flows out of the overflow valve 11, the transverse connecting valve 13 is kept in a normally open state, the water inlet valve 9 is installed below the second jacket 8, the first jacket 7 and the second jacket 8 can be fully filled with water, and dry areas are effectively avoided. The inventor observes and researches that the cooling water in the first jacket 7 and the second jacket 8 can be used by one team after being filled once, the water in the jackets is drained through the drain valve 10 after the next team is connected, and the drained water can be used for flushing the ground for cleaning and sanitation. And repeating the steps after the temperature of the sand mill rises.

Within 1 hour before the grinder stops, the feeding amount, the temperature and the motor rotating speed of the coating are all lower than normal process indexes, so that the coating with a large mesh number exists in the grinder, at the moment, the discharge valve 1701 can be temporarily closed, the filter screen 1702 is replaced, the filter screen 1702 with the large mesh number is placed on the filter screen support, and therefore the grinder still operates, and the time required for replacing the filter screen 1702 cannot be more than 10 minutes. After the replacement is completed, the discharge valve 1701 is re-opened.

In this embodiment, the connecting pipe 12 is located at the lower right of the sand mill.

In this embodiment, the forward rotating blades 5 and the reverse rotating blades 6 are fixed on the rotating shaft 4 by bolts, the outer edges of the forward rotating blades 5 and the reverse rotating blades 6 are serrated, and the axial center line angle between the forward rotating blades 5 and the reverse rotating blades 6 and the rotating shaft 4 is 30 °.

In this embodiment, the body 3 is filled with a plurality of zirconium beads 18.

In the present embodiment, the diameter of the connecting tube 12 is 25 mm.

In the embodiment, the diameters of the water inlet valve 9, the blowdown valve 11 and the overflow valve 11 are 40 mm.

In this embodiment, the pipe diameter of the material distribution pipe 15 is 50mm, the hole diameter of the distribution holes 16 is 10mm, and the number of the distribution holes 16 is at least 5.

In this embodiment, the discharge valve 1701 is a ball valve with a diameter of 80mm, and the filter holder 1703 is fixed to the inner wall of the discharge pipe 17 by screws.

In this embodiment, the filter support 1703 is "well" shaped.

As shown in fig. 3, in order to increase the grinding efficiency of the sand mill, the outer edges of the forward rotating blades 5 and the reverse rotating blades 6 are designed to be serrated.

As shown in fig. 4, the coating material reaches the material distribution pipe 15 through the feed inlet 14 and sequentially passes through the distribution holes 16, so that the direct washing of the coating material on the rotating shaft 4 and the rotating blades can be effectively avoided, and the grinding efficiency is improved.

The above embodiments are preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, and these changes and modifications are intended to fall within the scope of the claimed invention.

Claims

1. The utility model provides a high-efficient horizontal sand mill, includes organism and motor, its characterized in that:

the driving end of the motor is connected with a rotating shaft through a fixed sleeve, a middle point of the rotating shaft is taken as a boundary, one side of the rotating shaft is provided with a forward rotating blade, and the other side of the rotating shaft is provided with a reverse rotating blade; a first jacket is wrapped at one end of the machine body close to the motor, a second jacket is wrapped at the other end of the machine body, a blowdown valve is installed under the first jacket, a water inlet valve is installed under the second jacket, an overflow valve is installed over the second jacket, a horizontal connecting pipe is arranged between the first jacket and the second jacket, and a horizontal connecting valve is installed at the midpoint of the horizontal connecting pipe;

2. The high efficiency horizontal sand mill as claimed in claim 1, wherein: the outer edges of the forward rotating blades and the reverse rotating blades are in a sawtooth shape, and the angle between the axial center line of the forward rotating blades and the axial center line of the reverse rotating blades and the axial center line of the rotating shaft is 30 degrees.

3. The high efficiency horizontal sand mill as claimed in claim 1, wherein:

the machine body is filled with a plurality of zirconium beads.

4. The high efficiency horizontal sand mill as claimed in claim 1, wherein: the pipe diameter of the horizontal connecting pipe is 25 mm.

5. The high efficiency horizontal sand mill as claimed in claim 1, wherein: the diameters of the water inlet valve, the sewage draining valve and the overflow valve are 40 mm.

6. The high efficiency horizontal sand mill as claimed in claim 1, wherein: the pipe diameter of material distribution pipe is 50mm, the aperture of distribution hole is 10mm, the quantity of distribution hole is 5 at least.

7. The high efficiency horizontal sand mill as claimed in claim 1, wherein: the bleeder valve is the ball valve, and the diameter is 80mm, filter the support and pass through the screw fixation on the inner wall of discharging pipe.

8. The high efficiency horizontal sand mill as claimed in claim 7, wherein: the filtering bracket is shaped like a Chinese character jing.