RU22892U1 - HORIZONTAL BEAD MILL - Google Patents

Description

ducameric partition, and the gap between the latter and the rotor is less than the width of the separating slots. The disadvantage of this known mill is the technological complication of the manufacture of the rotor separator .:

The objective of the utility model was to develop a horizontal bead mill that would have the design of a rotary separator, forgiving its manufacturing technology while increasing the reliability of the work and the possibility of stepwise increasing the yield of the finished product (mill productivity) by creating the prerequisites for modular build-up of elements, which increases the arsenal of funds to expand the functionality of mills of this type.

In order to solve the problem with the achievement of the technical result, a horizontal bead mill includes, on a support, for example, in the form of pa1 s, an emery block with a cylindrical grinding chamber and input means for the initial product, grinding microbodies, for example spherical, partially filling the grinding chamber, a block with an unloading chamber and a means of outputting the finished product, a mixing mechanism located in the grinding chamber in the form of a set of accelerating disks fixed remotely to the console of the other part of the shaft passing through the unloading chamber, the grinding microbody separator made in the form of a rotor having a central mounting longitudinal hole and at least one separating slot with a width less than the diameter of the grinding nutcrackers and installed with means for fixing it on the shaft of the mixing mechanism at the interchamber partition, moreover, the rotor diameter exceeds the diameter of the total passage (for the specified shaft and the finished product) of the hole made in the interchamber partition, and the gap between the end face of the rotor and adjacent The distinctive feature of the proposed mill is that the rotor is made of at least two disks, a limiting and unloading one, the disks being placed with a gap forming a separating gap, and at least not in the unloading disk less than two identical through holes symmetrically located relative to its longitudinal geometric axis of the longitudinal holes.

- 2 or more with additional bottoms located between the limiting and unloading disks, each additional disk being identical to the unloading disk with the formation of an additional separating gap.

To increase reliability and simplify assembly, a separating gap between the rotor disks is formed due to the central remote element made in the form of a central annular protrusion on one of the flat end surfaces of the discharge disk.

In order to ensure a uniform width of the separating gap between the rotor disks, it is formed by a peripheral remote element made in the form of several, for example four, identical protrusions located on one of the flat end surfaces of the discharge disk symmetrically with respect to its longitudinal geometric axis.

In order to simplify the manufacturing technology and increase the reliability of fastening, the means of fixing the disks on the shaft are made in the form of two spacer sleeves and key connections, each sewing two cylindrical longitudinal keys placed symmetrically relative to the geometric axis of the shaft in the corresponding open semi-cylindrical longitudinal grooves that are made on the shaft on the disks from the side of their central holes, and the key connections of the accelerating disks of the mixing mechanism are identical to the key connections for rotor lawsuits in cross sections.

To prevent wear of the interchamber partition in the area of the passage opening, the separator is equipped with C1: a stationary element in the form of a cylindrical two-stage section of the ring having an outer diameter of at least the diameter of the rotor and mounted on the interchamber partition from the grinding chamber, removably and aligned with the passage hole and oriented with its recess towards the rotor .

To exclude damage to the mixing mechanism during axial movement of the removable unit beyond the dimensions of the latter, if necessary, control the performance by changing the number of additional separator disks, the removable unit is equipped with two pairs of rollers mounted on its lower part, and a pair of guides are secured to the support

- 3 interactions with the specified videos.

To ensure ease of use, these rails are made of two parts - stationary and rotary. The latter is pivotally connected to the support and is equipped with two braces, removably mounted with the possibility of interaction with the support in the working (horizontal) position of the rotary part.

The essence of the utility model is illustrated by drawings, which depict:

in FIG. 1 - the proposed horizontal bead mill, a General view with a partial section;

in FIG. 2 - the same, part of a longitudinal section (separator assembly with one separating slot and a central remote element);

in FIG. 3 is the same, a section along AA in FIG. 2;

in FIG. 4 - the same, part of a longitudinal section (separator assembly .with one separating slot and four peripheral distance elements);

in FIG. 5- the same, a section along BB in FIG. 4 ;

in FIG. 6 - the same, part of a longitudinal section (separator assembly with two separating slots and central distance elements);

in FIG. 7 is the same, general view in partial section (modification of a removable unit with a water cooling capacity of the grinding chamber);

in FIG. 8 is the same general view (horizontal arrangement of the rotary part of the guides for the rollers of the removable block).

The proposed utility model is a horizontal bead mill for dispersing solid materials in liquid media. It includes a sealed grinding chamber 1 (Fig. 1), small microbodies 2, a sealed discharge chamber 3, a mixing mechanism 4, and a separator 5 of grinding microbodies 2.

The grinding chamber 1 is cylindrical in a removable block 6 in the form of a glass with a connecting flange 7 and a bottom 8. The bottom 8 in the upper part is equipped with means 9 for introducing the initial product, which can be made in the form of a smoothly curved pipe.

-. 4 we can be made of metal, glass, solid oxides or alloys. They are placed in the grinding chamber 1, partially, for example, 70, filling its volume.

The unloading chamber 3 is made in a block 10 preferably of cylindrical shape, separated from the grinding chamber 1 by an interchamber partition 11 having a central passageway 12. The block 10 is equipped with means 13 for outputting the finished product, which can be made in the form of an inclined nozzle placed on its side surface 14 , has a bounding wall 15 with a central back hole 16 and two connecting phyanges 17 and 18 with bolted connections 19.

The mixing mechanism 4 is made in the form of a set of accelerating disks 20 located at a constant step due to the distance bushings 21 on the console part of the shaft 22 located in the grinding Kaiviepe 1. The distance bushings 21 and the accelerating disks 20 are pressed through the pressure sleeve 23, the washer 24 and the spring washer 25 a screw 26 screwed into the threaded end hole 27 of the shaft 22. The accelerating disks 20 are fixed to the shaft 22 using key connections (not shown in the drawing). The shaft 22 passes through holes 12.. and 16 partitions 11 and 15, respectively, rests on two vapors rolling bearing 28 and carries a drive pulley 29. Sealing of the discharge chamber 3 in the area of the hole 16 is provided by means of an end graphite sealing assembly 30 located in the sealing compartment 31 of block 10. Bearings 28 are placed in a support cylindrical housing 32 with a connecting flange 33.

The separator 5 of the grinding bodies 2 (Fig. 2 and 3) is made in the form of a rotor 34, which consists of at least two disks - limiting 35 and unloading 36 of equal outer diameter D with identical central mounting holes 37. Disks

35 and 36 are placed on the shaft 22 with a gap S forming a separating gap 38 (i.e., where d is the diameter of the grinding microbodies 2).

At least two, for example six, identical, for example cylindrical, through holes symmetrically located relative to its longitudinal geometric axis 39 of the longitudinal holes 40 are made in the unloading disk 26, the geometric axis 39 coinciding with the geometric axis of the shaft 22. The disks 35 and

- 5 in the form of two spacer bushings 42 and 43 and key connections 44. Each of the connections 44 has two cylindrical longitudinal keys 45 placed symmetrically with respect to the geometrical axis 39, respectively, in the semi-cylindrical open longitudinal grooves 46 and 47 of the shaft 22 and the disks 35 and 36 from the side their central holes 37. The grooves 46 of the shaft 22 are made up to its end face 48, therefore the key connections d.11 for fixing the upper stages 20 of the stirring mechanism 4 must be identical to the key connections 44 of the disks 36 and 37 of the rotor 34 p at least in cross section (in the general case, the keys 45 can be of different lengths). The disk 36 is placed at the inter-chamber partition 11 with a gap 5 smaller than the width S of the separating plate 38 (i.e.). The diameter D of the disk 36 is greater than the diameter dj of the bore 12 made in the inter-chamber partition 11 and which is a common passage of the shaft 22 and the finished product.

The separating gap 38 between the disks 35 and 36 can be formed due to the central distance element 49, made in the form of a central protrusion on one of the flat end surfaces 50 of the discharge disk 36. It is possible to create a separation gap 38 due to the presence of the peripheral distance element 51 (Fig. 4 and 5) made in the form of several, for example four, identical protrusions located on one of the flat end surfaces 50 of the unloading disk 36 symmetrically to its longitudinal geometric axis 39.

The separator 5 may be equipped with one or more additional disks 52 (Fig. 6) located between the limiting 35 and unloading 36 disks. Each additional disk 52 is identical to the unloading disk 36 with the formation of a separating gap 38 due to the Central 49 or peripheral 51 remote element .

The separator 5 (Fig. 6) may be provided with a stationary element 53 made in the form of a cylindrical ring having a two-stage cross section with a recess 54, the outer diameter DK not less than the diameter D of the rotor 34 (its disks 35.36 and 52), i.e. e. Gd. B. It is installed on the inter-chamber partition 11 from the side of the grinding chamber 1 removably (for example, using screw fastening 55) and coaxially with the bore hole 11, oriented 6 but with its recess 54 towards the discharge disk 36 of the rotor 34.

D-vd elimination of the negative effect of temperature increase on the quality of the finished product for some substances, the removable block 6 may contain a sealed casing 56 (Fig, 7), covering a concentric grinding chamber 1 with the formation of a cooling tank 57 and equipped with an inlet 58 and outlet 59 nozzles for a heat-conducting fluid water, for example. In the lower part, the casing 56 can be equipped with two pairs of rollers 60, which are supported by guides 61, mounted on a support 62, for example in the form of a frame. On the latter, using the supporting elements 63 and 64, a discharge chamber 3 and a housing 32 of the bearings 28 are installed, respectively. In the case of a mill without a cooling tank, pairs of rollers 60 can be installed directly on the part of the removable block 6 (not shown). The guides 61 are made in the form of duhas of parallel angles. The part 65 (Fig. 8) of the guides 61 that protrudes beyond the horizontal projection of the end part of the bottom 8 of the removable block 6 can be made U-shaped and rotatable, i.e. connected by a frame 62 using a pair of hinges 66 relative to its stationary part 67. Moreover, in the horizontal working position, the part 65 can be fixed using braces 68, removably mounted to interact with the frame 62. For example, each brace 68 includes a rod 69, ends 70 which are bent 90 degrees in one plane and enter the eyes 71 and 72, respectively, of the part 65 and the frame 62.

Within the grinding 1 and unloading 3 chambers, a tray 73 is installed on the frame 62 to intercept the product flowing out of the chambers during dismantling related to setting up or maintenance of the mill.

The proposed mill operates as follows. The torque M (Fig. 7) of the shaft 22 is transmitted to its pulley 29 by means of a V-belt transmission from the pulley to the motor shaft (not shown in the drawing). The accelerating disks 20 mounted on the shaft 22 result in rotational motion the result of the friction forces is grinding of the microbodies 2 and the initial product 74, consisting of solid and liquid components and entering the grinding chamber 1 through the inlet pipe 9. During their rotation, grinding of the solid component of the initial product 74 takes place. duct 75 (crushed solid component and liquid) enters the separating slots 38 of the rotor separator 5, passes through the longitudinal holes 40 of its additional 52 and discharge 36 discs, and through the annular gap of the passage opening 12 in the inter-chamber partition 11 enters the discharge chamber 3 with its subsequent removal through the outlet pipe 13. Щ) and this cooling of the grinding chamber 1 is carried out by supplying water 76 through the pipe 58 to the cooling tank 57 and removing it through the pipe 59.

A change, for example, an increase in mill productivity, is ensured by installing between the disks 35 and 36 of the rotary separator 5 (Fig. 1) additional disks 52, for example one (Fig. 7). This is carried out in the following sequence. Set the rotary part 65 of the guides 61 (Fig. 8) in a horizontal (working) position, turning it in hinges 66 with subsequent fixing, using two braces 68. Next, unscrew the bolted joints 19 of the flanges 7 and 17 ,. the removable block 6, including the grinding chamber 1 and the cooling tank 57, is pushed outside the mixing mechanism 4, rolling the removable block 6 on its po, eggs 60 along the guides 61. The contents of the grinding chamber 1 are drained into the tray 73, followed by removal. screw 26 (Fig. 7) from the end threaded hole 27 of the shaft 22 and removing the washers 25 and 24 alternately remove the pressure sleeve 23 from the shaft 22, the distance bushings 21 and the acceleration disks 20 with the dowels 45. Then remove the distance sleeve 42 (Fig. 6) and limiting disc 35 with a snap 45 and install one additional disk 52 with a key 45. After this, the mixing mechanism 4 is assembled and the removable block 6 is fixed, performing operations in the reverse order.

In the case of using the proposed mill for dispersing pigments and fillers in the manufacture of oil and water-dispersed paints, enamels, grinding microspheres with a diameter of 5 ... 3.5 mm and a separating slit width S 0.5 ... 0, can be used 9 mm and a frontal gap of 5 0.1 ... 0.2 mm, and as a liquid component, respectively, drying oil, water and varnishes. .

- 8 The design of the separator has a configuration simplicity that simplifies its manufacture) while at the same time increasing the reliability of operation and the possibility of stepwise regulation of mill productivity by changing the number of identical disk elements.

- 9

Claims (8)

1. Horizontal bead mill, including mounted on a support, for example, in the form of a frame, a circuit block with a cylindrical grinding chamber and input means for the initial product, grinding microbodies, for example, spherical in shape, partially filling the grinding chamber, a block with a discharge chamber and output means for the finished product product, a mixing mechanism located in the grinding chamber in the form of a set of accelerating disks remotely fixed on the cantilever part of the shaft passing through the discharge chamber, a milling separator calving made in the form of a rotor having a central mounting longitudinal hole and at least one separating slit wider than the diameter of the grinding microbodies, and installed with means for fixing it on the shaft of the mixing mechanism at the interchamber partition, and the diameter of the rotor exceeds the diameter of the common passage for the specified shaft and the finished product of the hole made in the interchamber partition, and the gap between the end of the rotor and the adjacent surface of the interchamber partition is less than the width of the separating slots, characterized in that the rotor is made of at least two disks - a limiting and unloading one, the disks being placed with a gap forming a separating gap, and at least two identical through symmetrically arranged through holes are arranged in the unloading disk the longitudinal geometric axis of the longitudinal holes.  2. The mill according to claim 1, characterized in that the rotor is equipped with one or more additional disks located between the limiting and unloading disks, each additional disk being identical to the unloading disk and installed with the formation of an additional separating gap.  3. The mill according to claims 1 and 2, characterized in that the separating gap between the rotor disks is formed by a central remote element made in the form of a central annular protrusion on one of the flat end surfaces of the discharge disk.  4. The mill according to claims 1 and 2, characterized in that the separating gap between the rotor disks is formed by a peripheral remote element made in the form of several, for example, four identical protrusions located on one of the flat end surfaces of the discharge disk symmetrically with respect to its longitudinal geometric axis.  5. The mill according to claims 3 and 4, characterized in that the means for fixing the rotor disks on the shaft are made in the form of two spacer sleeves and key connections, each with two cylindrical keys, placed symmetrically with respect to the geometrical axis of the shaft in the corresponding open semi-cylindrical longitudinal grooves, made on the shaft and on the rotor disks from the side of their central holes, and the key connections of the accelerating disks of the mixing mechanism are identical to the key connections of the rotor disks in cross section yah.  6. The mill according to claims 1-5, characterized in that the separator is equipped with a stationary element in the form of a cylindrical two-stage cross-section of a ring having an outer diameter not less than the diameter of the rotor and mounted on the inter-chamber partition from the grinding chamber, removably and coaxially to the passage opening and oriented by its recess towards the rotor.  7. Mill according to any one of claims 1 to 6, characterized in that the removable unit is equipped with two pairs of rollers mounted on its lower part, and a pair of guides are fixed to the support to ensure interaction with these rollers. 8. The mill according to claim 7, characterized in that the guides are made of two parts - stationary and rotary, which is pivotally connected to the support and is equipped with two braces, removably mounted with the possibility of interaction with the support in the working (horizontal) position of the rotary part.