CN-224221467-U - Vertical sand mill

CN224221467UCN 224221467 UCN224221467 UCN 224221467UCN-224221467-U

Abstract

The utility model discloses a vertical sand mill barrel which comprises a stirring device and a barrel body, wherein the stirring device comprises a hollow main shaft, a disperser and a separator, a discharging channel is arranged in the main shaft, a material outlet is arranged at the top end of the discharging channel, and the separator is fixed on the outer periphery of the main shaft and positioned at the top end of the barrel body. The rotor is fixed on the outer periphery of the main shaft and is positioned below the separator, the disperser comprises the rotor and rod nails, the rod nails are fixed between the upper rotor and the lower rotor through bolts, and the outer ends of the rod nails protrude out of the outer periphery of the rotor. Through above design, the main shaft produces centrifugal force when rotatory, makes grinding medium pile up at the separator periphery, and the material is then piled up and is discharged to the material export behind the separator central zone, and this design need not the screen cloth, does not have the problem that the screen cloth blockked up. Meanwhile, the rotor and the rod nails are not welded and fixed, the problem of breakage of the spindle is avoided, stability and safety in the production process are good, and maintenance cost is reduced.

Inventors

ZHANG HAO
XU FAN
GAO JIE

Assignees

深圳市红石智能装备有限公司

Dates

Publication Date: 20260512
Application Date: 20250417

Claims (8)

1. The vertical sand grinding cylinder is characterized by comprising a fixed support, a stirring device and a cylinder body, wherein the stirring device and the cylinder body are fixed on the fixed support, the stirring device stretches into the cylinder body, a material inlet, a grinding medium inlet and a grinding medium outlet are formed in the cylinder body, the stirring device comprises a hollow main shaft, a disperser and a separator, a discharging channel is formed in the main shaft, a material outlet is formed in the top end of the discharging channel, the separator is fixedly sleeved on the outer periphery of the main shaft and positioned at the top end of the cylinder body, the inside of the separator is communicated with the bottom end of the discharging channel, the disperser is fixedly sleeved on the outer periphery of the main shaft and positioned below the separator, the disperser comprises a plurality of rotors and a plurality of rod nails, the rod nails are fixed between the upper rotor and the lower rotor through bolts, and the outer ends of the rod nails protrude out of the outer periphery of the rotors.
2. The vertical sand mill according to claim 1, wherein the cylinder body comprises an outer cylinder and an inner cylinder, the disperser, the separator and the bottom end portion of the main shaft are embedded in the inner cylinder, a cooling cavity for cooling liquid to flow is arranged between the outer cylinder and the inner cylinder, and a cooling liquid inlet joint and a cooling liquid outlet joint are further arranged on the outer cylinder.
3. The vertical sand mill of claim 1, further comprising an upper cap assembly and a lower cap assembly for capping the upper and lower ports of the cylinder, respectively, wherein the cylinder and the upper cap assembly are of a separable structure, and the cylinder and the lower cap assembly are of a fixed connection structure.
4. The vertical sand mill of claim 3 wherein the lower cap seal assembly comprises a feed connector connected to a feed pump, a one-way ball valve embedded in an interior cavity of the feed connector, and further controlling one-way entry of material from the feed connector into the sand mill.
5. The vertical sand mill of claim 1 wherein the stirring device further comprises a rotor platen secured to the bottom end of the spindle for supporting and securing the rotor.
6. The vertical sand mill of claim 5 wherein the stirring device further comprises a lock nut that is secured around the periphery of the spindle and above the rotor platen, all of the rotor and the pins being sandwiched between the lock nut and the rotor platen.
7. The vertical sand mill according to claim 1, wherein the stirring device further comprises a bearing seat, an upper bearing gland and a lower bearing gland, the bearing seat is fixed on the fixed support, the main shaft is rotatably arranged in the bearing seat in a penetrating manner, and the upper bearing gland and the lower bearing gland are respectively arranged at the top end and the bottom end of the bearing seat in a covering manner.
8. The vertical sand mill according to claim 2, further comprising an electric contact pressure gauge and an electric contact temperature gauge, wherein the electric contact pressure gauge is used for collecting pressure information in the inner cylinder and feeding back to the upper computer, the electric contact temperature gauge is used for collecting discharge temperature and feeding back to the upper computer, and the upper computer is used for controlling equipment to operate after analyzing and processing the received information.

Description

Vertical sand mill Technical Field The utility model belongs to the field of sanding equipment, and particularly relates to a vertical sand grinding cylinder. Background The sand mill is also called bead mill, and is mainly used for grinding slurry (such as ink, paint and chocolate), and the grinding medium is generally made of glass, zirconia, tungsten carbide, talcum porcelain, SAZ particles and the like. The present invention is generally classified into a horizontal sand mill, a basket sand mill, a vertical sand mill, etc., according to the performance of use. The sand mill realizes the grinding function of a sand mill cylinder, and the sand mill cylinder mainly comprises a stirring device and a cylinder body. In order to avoid that the grinding media such as zirconia beads are discharged together with the ground objects, a screen is generally required to be additionally arranged in a sand grinding cylinder, but the screen is easy to be blocked, so that the screen is required to be cleaned frequently, and the production is greatly unchanged. Moreover, the conventional stirring device adopts a mode of welding a rotating shaft and a blade, and the structure is simple, but after long-term use, the blade can deform and break, so that potential safety hazards are brought to production, and the structure is not easy to maintain. Often still be detained the material easily in the welding department, be difficult for clean, can cause the pollution to the sanding of different materials next time. Therefore, a new technical solution is urgently needed to solve the above-mentioned existing technical problems. Disclosure of utility model The utility model aims to provide a vertical sand mill barrel which can solve the problems that a sand mill barrel in the prior art is easy to block by adopting a screen mesh and paddles of a stirring device are easy to break. The vertical sand grinding cylinder comprises a fixed support, a stirring device and a cylinder body, wherein the stirring device and the cylinder body are fixed on the fixed support, the stirring device stretches into the cylinder body, a material inlet, a grinding medium inlet and a grinding medium outlet are formed in the cylinder body, the stirring device comprises a hollow main shaft, a disperser and a separator, a discharging channel is formed in the main shaft, a material outlet is formed in the top end of the discharging channel, the separator is fixedly sleeved on the outer periphery of the main shaft and is positioned at the top end of the cylinder body, the interior of the separator is communicated with the bottom end of the discharging channel, the disperser is fixedly sleeved on the outer periphery of the main shaft and is positioned below the separator, the disperser comprises a plurality of rotors and a plurality of rods and nails, the rods are fixed between the upper rotor and the lower rotor through bolts, and the outer ends of the rods protrude out of the outer periphery of the rotors. Further, the cylinder body comprises an outer cylinder and an inner cylinder, the bottom end parts of the disperser, the separator and the main shaft are embedded in the inner cylinder, a cooling cavity for cooling liquid to flow is arranged between the outer cylinder and the inner cylinder, and a cooling liquid inlet connector and a cooling liquid outlet connector are further arranged on the outer cylinder. Further, the vertical sand mill cylinder further comprises an upper cover sealing component and a lower cover sealing component which are respectively used for sealing the upper port and the lower port of the cylinder body, wherein the cylinder body and the upper cover sealing component are of a detachable structure, and the cylinder body and the lower cover sealing component are of a fixed connection structure. Further, the lower cover seal assembly comprises a feed connector, the feed connector is connected with the feed pump, a one-way ball valve is embedded in an inner cavity of the feed connector, and then materials are controlled to enter the sand grinding cylinder unidirectionally through the feed connector. Further, the stirring device further comprises a rotor pressing plate, wherein the rotor pressing plate is locked at the bottom end of the main shaft and used for supporting and locking the rotor. Further, the stirring device further comprises a locking nut, wherein the locking nut is sleeved and fixed on the periphery of the main shaft and is positioned above the rotor pressing plate, and all the rotors and the rod nails are clamped between the locking nut and the rotor pressing plate. The stirring device further comprises a bearing seat, an upper bearing gland and a lower bearing gland, wherein the bearing seat is fixed on the fixed support, the main shaft is rotatably arranged in the bearing seat in a penetrating mode, and the upper bearing gland and the lower bearing gland are respectively arranged at the top end and the bottom end of the be