CN205074053U - A horizontal sand mill with a combined rotating dispersing disc grinding structure - Google Patents

Abstract

The utility model provides a horizontal sand mill with a combined rotary dispersion disc grinding structure, which comprises a frame, a motor, a main shaft, a grinding unit, a material pump and an electrical system; the grinding unit is a rotary dispersion disc grinding structure formed by combining a disc type dispersion disc and an eccentric type dispersion disc and comprises a grinding outer cylinder, a grinding cavity inner cylinder, a main shaft, a discharging separation device, a discharging end flange, a wear-resisting plate, a cylinder end sealing cover plate and a ball valve; the utility model discloses a horizontal sand mill of combined grinding structure, have two kinds of different shearing forces, the motion mode of pearl and material that can change to improve the relative motion speed and the collision probability between pearl and material particle, obtain relative motion speed and the collision power higher than single disk or eccentric disc formula, make the material reach ideal fineness as soon as possible, obtain higher grinding efficiency; the coating is wear-resistant, corrosion-resistant, long in service life and convenient to clean and replace; the method is widely used for processing and producing the industries such as paint, printing ink, pigment and the like.

Description

A horizontal sand mill with a combined rotating dispersing disc grinding structure

technical field

The utility model relates to a horizontal sand mill, in particular to a horizontal sand mill with a combined rotating dispersion disc grinding structure, which belongs to the technical field of grinding machinery.

Background technique

At present, most of the sand mills used in industries such as coatings, inks, inks, pigments, and dyes have a single disc or eccentric disc grinding structure. The basic principle is: a closed cylinder is equipped with a grinding medium such as zirconium Beads, glass beads, etc. move the medium in the cylinder through the dispersing disc installed on the rotating shaft to make the medium move relative to each other, so that the materials to be ground pass through the medium to achieve the effect of crushing. The higher the relative speed of the grinding medium, the greater the collision force and the better the grinding fineness; the action mode of a single disc or eccentric disc sand mill makes the effect of the relative movement of the grinding medium not very ideal. To achieve the ideal The fineness needs to be ground many times, the grinding time is long, the energy consumption is high, and the efficiency is low.

Contents of the invention

The horizontal sand mill of the present utility model is a combined rotating dispersing disc grinding structure - a combination of a disc dispersing disc (as shown in Figure 3) and an eccentric dispersing disc (as shown in Figure 2). The biggest feature of the dispersing and grinding structure is that during the rotating grinding process, two different dispersing discs have different shear forces, which change the movement mode of the beads and materials in the cylinder, thereby improving the relative movement between the beads and material particles. Speed and collision probability, obtain higher relative motion speed and collision force than single disc or eccentric disc, so that the material can reach the ideal fineness as soon as possible, so a combined rotary dispersing disc sand mill of the utility model Higher grinding efficiency can be obtained.

The purpose of this utility model is to provide a horizontal sand mill with a combined rotating dispersing disc grinding structure, which is composed of a grinding chamber and a combined rotating dispersing disc, and the material can be stainless steel or hard alloy steel; if the grinding is water-based For chemical products or corrosive materials, the rotating dispersing disc is made of ceramics or polyurethane, and the cylinder in the grinding chamber is lined with polyurethane, ceramics, silicon carbide and other materials.

In order to facilitate the cleaning of the sand mill and the replacement of grinding beads, a bead release valve is set at the bottom of the grinding chamber.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions: The utility model relates to a horizontal sand mill with a combined rotating dispersion disc grinding structure, including a frame, a motor, a main shaft, a grinding unit, and a material pump. , material inlet and outlet, pressure gauge, temperature gauge and electrical control system; the grinding unit is a combination of a disc dispersion disc (as shown in Figure 3) and an eccentric dispersion disc (as shown in Figure 2) Rotary dispersing disc grinding structure; the grinding unit includes a grinding outer cylinder with a jacket and cooling water inlet and outlet, a grinding chamber inner cylinder, a main shaft, a discharge separation device, a sealing flange at the discharge end, and a wear-resistant plate , feed port, discharge port, grinding cylinder end cover plate and bead valve; one end of the main shaft is equipped with a pulley, the pulley is driven by a motor through a V-belt, and the other end extends in the grinding chamber; the main shaft is It includes a discharge separation device, several eccentric dispersion discs, disc dispersion discs and shaft end caps; the eccentric dispersion discs and disc dispersion discs are fixed with several isolation rings; the discharge separation device is The cylinder body with cavity communicates with the discharge port, including a moving ring, a slit-type separation ring, and a separation ring pressure plate; the discharge separation device is fixed on the main shaft and rotates with the main shaft; the discharge separation device is connected with the wear-resistant The gap between the plates is sealed by the static ring and the moving ring, allowing only the material to pass through, not the beads; the static ring is fixed on the wear-resistant plate, and the movement mode of the material is changed due to the action of the static ring during the rotation process. There is no dead angle; the moving ring is close to the static ring and is installed at one end of the slit-type separation ring. It has elastic vibration when rotating, so that the material accumulation does not block the gap on the slit-type separation ring, and it is convenient for the material to separate and pass quickly. The feed inlet and the bead valve are installed on the end cover plate of the grinding cylinder; the main shaft is fixed on the frame with a bearing seat; the bearing seat is connected with the grinding unit with a mechanical seal; The bearing seat includes a bearing, a bearing sleeve, a bearing seat end cover and a bearing seat support seat; the mechanical seal device includes a machine seal shaft sleeve, a double-end mechanical seal, a machine seal stationary ring seat, a machine seal seat and a machine seal connection seat; the mechanical seal device is fixed on the cover flange of the discharge end of the grinding unit with a connecting seat.

A horizontal sand mill with a combined rotating dispersing disc grinding structure manufactured by the utility model is characterized in that during the rotating grinding process, two different grinding and dispersing structures have different shear forces, changing the The movement mode of the beads and the material, so as to increase the relative movement speed and collision probability between the beads and the material particles, obtain a higher relative movement speed and collision force than a single disc or eccentric disc, so that the material can reach the ideal as soon as possible Fineness, so the combined rotary dispersing disc sand mill of the utility model can obtain higher grinding efficiency; the combined horizontal sand mill made by the utility model also has wear resistance, corrosion resistance, high grinding efficiency, Long life, easy to clean and replace. Widely used in the processing and production of various coatings, inks, pigments, etc. that require grinding.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a horizontal sand mill with a combined rotating dispersing disc grinding structure of the present invention.

Fig. 2 is a structural schematic diagram of an eccentric dispersion disc of the present invention.

Fig. 3 is a structural schematic diagram of a disc-type dispersing disc of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1, a horizontal sand mill with a combined rotating dispersing disc grinding structure of the utility model includes a frame, a motor, a main shaft, a grinding unit, a material pump, a material inlet and outlet, a pressure gauge, a thermometer and Electrical control system; the grinding unit includes a grinding outer cylinder 8 with a jacket and cooling water inlet C and outlet D, a grinding chamber inner cylinder 9, a main shaft 21, a discharge separation device 6, and a capping method for the discharge end Lan 1, wear-resistant plate 2, feed port A, discharge port B, grinding cylinder end cover plate 15 and ball valve E; one end of the main shaft 21 is equipped with a pulley 22, and the pulley is driven by a motor through a V-belt. The other end extends in the cylinder 9 in the grinding chamber; the main shaft 21 includes a discharge separation device 6, several eccentric dispersion discs 10 (with disc dispersion discs 12) and shaft end caps 13; The eccentric dispersing disc 10 and the disc dispersing disc 12 are fixed with several spacer rings 11; the discharge separation device 6 is a cylinder with a cavity that communicates with the discharge port B; it includes a moving ring 4, a slit separation Ring 5, separation ring pressure plate 7; discharge separation device 6 is fixed on the main shaft 21 and rotates together with the main shaft 21; the gap between the discharge separation device 6 and the wear plate 2 is sealed by the static ring 3 and the dynamic ring 4, only The material is allowed to pass through, and the beads are not allowed to pass through; the static ring 3 is fixed on the wear-resistant plate 2, and the movement mode of the material is changed due to the action of the static ring 3 during the rotation process, and there is no dead angle; the moving ring 4 Close to the static ring 3, it is installed at one end of the slit-type separation ring 5, and has elastic vibration when rotating, so that the material does not accumulate to block the gap on the slit-type separation ring 5, so that the material can be separated and passed quickly; the feeding The port A and the bead release valve E are fixedly installed on the grinding cylinder end cover plate 15 with flanges 14 and 16 respectively; the main shaft 21 is fixed on the frame with the bearing seat 20; the bearing seat 20 is fixed with a machine seal Connected with the grinding unit; the bearing housing 20 includes bearings 25, bearing sleeves 26, 27, bearing housing end caps 23 and bearing housing support bases 24; the mechanical sealing device includes a mechanical seal shaft sleeve 28, a double-end mechanical seal 29. Mechanical seal static ring seat 19, mechanical seal seal seat 18 and mechanical seal connection seat 17; the mechanical seal device is fixed on the cover flange 1 of the discharge end of the grinding unit with the connection seat 30.

The above-described embodiments are only descriptions of the preferred implementations of the present invention, and are not intended to limit the scope of the present invention. Those of ordinary skill in the relevant technical fields can also make Various schemes, changes and modifications should fall within the protection scope of the claims of the present utility model.

Claims (5)

1. a horizontal sand mill for Assembled rotary dispersion impeller abrasive structure, comprises frame, motor, main shaft, grinding unit, product pump, material import and export, Pressure gauge, thermometer and electric control system; Described grinding unit is the rotation dispersion impeller abrasive structure that disc type dispersion impeller and centering type dispersion impeller combine; Described grinding unit comprise jacketed and cooling water outlet and inlet grinding outer cylinder body, grinding chamber inner barrel, main shaft, go out material separating device, discharge end capping flange, wearing plate, charging aperture, discharging opening, sand cylinder end capping plate and put pearl valve.

2. the horizontal sand mill of a kind of Assembled rotary dispersion impeller abrasive structure as claimed in claim 1, is characterized in that: belt pulley is loaded onto in described main shaft one end, and belt pulley is driven by motor by V-belt, and the other end stretches in grinding chamber; Stretch on the main shaft in grinding chamber and comprise material separating device, several centering type dispersion impellers and several disc type dispersion impellers and axle head sealing cap; Described centering type dispersion impeller and several shading rings of disc type dispersion impeller are fixed on main shaft.

3. the horizontal sand mill of a kind of Assembled rotary dispersion impeller abrasive structure as claimed in claim 1 or 2, is characterized in that: the described material separating device that goes out is be with the cylindrical shell of cavity to communicate with discharging opening, comprises rotating ring, grid seam eseparation ring, eseparation ring pressing plate; The described material separating device that goes out is fixed on main shaft, rotates with main shaft; The described gap gone out between material separating device and wearing plate adopts stationary ring and ring seal; Described stationary ring is fixed on wearing plate; Described rotating ring and stationary ring are close, and are arranged on one end of grid seam eseparation ring, flexible vibration during rotation.

4. the horizontal sand mill of a kind of Assembled rotary dispersion impeller abrasive structure as claimed in claim 1, is characterized in that: described charging aperture, put pearl valve flange and be fixedly mounted on sand cylinder end capping plate.

5. the horizontal sand mill of a kind of Assembled rotary dispersion impeller abrasive structure as claimed in claim 1 or 2, is characterized in that: described bearing for spindle seat is fixed in frame; Described bearing block machine seal apparatus is connected with grinding unit; Described bearing block comprises bearing, bearing holder (housing, cover), bearing cover and bearing block supporting seat; Described machine seal apparatus comprises machine envelope axle sleeve, double mechanical seal, machine envelope stationary seat, machine envelope seal receptacle and machine envelope Connection Block; Described machine seal apparatus Connection Block is fixed on grinding unit discharge end capping flange.