CN208288115U - A kind of grinder - Google Patents

Abstract

The utility model discloses a kind of grinders to be connected with feed pipe at the top of hollow shaft including cylinder, the overflow port being set at the top of cylinder and the hollow shaft being inserted into cylinder lumen bottom from overflow port and not contacting with cylinder body bottom；Multiple mills are housed in shaft outer surface spacer sleeve, and unequal at a distance from least there are two the distances between adjacent mill in all mills between other adjacent mills.The utility model is using endfeed on hollow rotating shaft, and mill Unequal distance is staggered that grinding machine structure is simple, grinding effect is more preferable in making in shaft.

Description

A kind of grinder

Technical field

The utility model relates to a kind of grinders.

Background technique

Vertical lapping machine is very important equipment in superfine powder preparation, have capacity usage ratio is high, product granularity is thin, The advantages that grinding mechanism is superior, device structure is simple, therefore be current most promising one of research of super-pine crush equipment.By , to the continuous exploitation of high-quality mineral products, domestic mineral resources are caused to tend to " poor, thin, miscellaneous ", it is therefore desirable to vertical mill in for a long time Fine grinding is carried out to improve monomer degree of dissociation to mineral, provides necessary condition for subsequent effective sorting, therefore vertical mill is in gold Belong to and being widely applied on mine.

Currently used vertical disk grinder generally comprises the components such as cylinder, shaft, mill, feed inlet and outlet, charging It by the way of the charging of bottom, avoids medium ball from running out of when in order to feed, needs a set of control pressurer system guarantee both can be with Charging can prevent medium ball from running out of again, and control pressurer system is easily worn part, it is often necessary to repair.Mill structure is from most First disc-shaped structure is improved to the non-circular plate-like mill of four claw types, is sleeved in shaft at equal intervals, and all mills are in space Upper parallelly distribute on, that is, the orthographic projection of all mills are overlapped.The vertical disc type grinding machine structure of existing structure is complicated, grinding is imitated Fruit is bad, and the discharging particle after grinding is uneven, often contains bulky grain.

Utility model content

In view of the above-mentioned problems, the utility model is intended to provide, a kind of grinding effect is good, the simple grinder of structure.

The technical solution that the utility model solves the problems, such as is: a kind of grinder, including cylinder, is set to overflowing at the top of cylinder Head piece further includes the hollow shaft being inserted into cylinder lumen bottom from overflow port and not contacting with cylinder body bottom, is turned in hollow Feed pipe is connected at the top of axis；Multiple mills are housed in shaft outer surface spacer sleeve.

Above scheme changes original feeding structure, and shaft is made into hollow shaft, is fed into cylinder body bottom from upper end, institute into Material is gradually increasing from overflow port and is discharged after the grinding by mill.It is changed to after the mode of upper endfeed, can save Traditional control pressurer system, is omitted easily worn part, so that structure is simpler, and maintenance is easier.

Further, the mill is at least provided with three, in all mills at least there are two between adjacent mill away from It is unequal from the distance between other adjacent mills.

The mill of Unequal distance is set, so that being located at the particle speed of mill edge and the particle for not being located at mill edge Speed is different, and the particle speed for being not at mill edge can change with spacing between adjacent mill and be changed, thus So that slurry forms speed difference in vertical direction during being ground, speed difference is bigger, and the collision between particle is fiercer, Grinding effect is with regard to more preferable.

Further, be equipped between two neighboring mill and be sleeved on the sleeve of shaft outer surface, sleeve both ends respectively with Two neighboring mill abuts.

On the one hand sleeve can separate two adjacent mills, the different spacing sizes between two adjacent mills can basis The different length of sleeve is adjusted；On the other hand, it can protect shaft, prevent corrosion of the slurry to shaft.

Specifically, each mill includes disk body, around the disk pawl of disk body setting.

Further, the disk pawl is equipped at intervals with multiple, and the disk pawl of adjacent mill is staggered, and adjacent mill disk pawl is just Projection is not overlapped.

Being staggered is advantageous in that the path of relative motion of the slurry during the grinding process between particle can become longer, Collision shearing is more abundant, and grinding effect is more preferable.

Preferably, the disk dog collar is laid with three around disk body.

Further, it is fixedly connected with sub-material rotor in shaft lower end, the sub-material rotor includes the hollow of bottom-open Column pedestal, the discharge hole for surrounding the setting of pedestal side wall array, the feed opening being set at the top of pedestal；

The hollow cavity lower end of the feed opening and shaft is docked and connected.

The effect of sub-material rotor is to carry out centrifugation to the slurry that enters in grinding machine from main shaft hollow cavity bottom, by from Mental and physical efforts throw away slurry from discharge hole, avoid that agglomeration phenomena occurs.

Further, the medium inlet for leading to cylinder lumen is equipped at the top of cylinder, being equipped in cylinder body bottom can be by medium The media outlet of discharge.

Common abrasive media is medium ball, after having ground, when needing that medium ball is discharged, opens the valve of media outlet, Medium ball can be gone out by pouring water from medium inlet.

Further, it is equipped at the top of cylinder and slips stock tank, slipping stock tank bottom is slope, is equipped with discharge port at slope foot；

The top height of the overflow port is slipped stock tank bottom.

The remarkable result of the utility model is:

1, the mode fed can save traditional control pressurer system using endfeed on hollow rotating shaft, be omitted easily Component is damaged, in the case where realizing the function of persistently feeding, keeps grinding machine structure simple, compact, and maintenance is easier.

2, mill Unequal distance is set in shaft, and can be adjusted by replacing the sleeve of different length, and slurry is ground Speed difference is formed in vertical direction in journey, obtains optimal grinding effect.

3, it is interspersed between mill, the path of relative motion of the slurry during the grinding process between particle is promoted to become more Long, collision shearing is more abundant, and grinding effect is more preferable.

Detailed description of the invention

The utility model is described in further detail with reference to the accompanying drawing.

Fig. 1 is the overall appearance schematic diagram of the utility model grinder.

Fig. 2 is the utility model grinder perspective view.

Fig. 3 is the utility model grinder internal structure main view.

Fig. 4 is mill structural perspective.

Fig. 5 is sub-material rotor structure figure.

Fig. 6 is slurry grinding mechanism contrast schematic diagram.

In figure: 1- shaft, 2- feed pipe, 3- sub-material rotor, 4- mill, 5- sleeve, 6- cylinder, 7- media outlet, 8- overflow Head piece, 9- slip stock tank, 10- discharge port, the medium inlet 11-, 31- pedestal, 32- discharge hole, 33- feed opening, 41- disk body, 42- disk Pawl.

Specific embodiment

As shown in Fig. 1~5, a kind of grinder, including cylinder 6, the overflow port 8 being set at the top of cylinder 6.It is pushed up in cylinder 6 Portion is equipped with and slips stock tank 9.Slipping 9 bottom of stock tank is slope, is equipped with discharge port 10 at slope foot.The top height of the overflow port 8 is slipped 9 bottom of stock tank.

It further include the hollow shaft 1 being inserted into 6 intracavity bottom of cylinder from overflow port 8 and not contacted with 6 bottom of cylinder.

Feed pipe 2 is connected at the top of hollow shaft 1.

At least three mills 4 are housed in 1 outer surface spacer sleeve of shaft, and at least there are two adjacent mills in all mills 4 The distance between the distance between disk 4 and other adjacent mills 4 are unequal.Each mill 4 includes disk body 41, around disk body 41 The disk pawl 42 of setting.The disk pawl 42 is laid with three around disk body 41.The disk pawl 42 of adjacent mill 4 is staggered, i.e. phase The orthographic projection of adjacent 4 disk pawl 42 of mill is not overlapped.

The sleeve 5 for being sleeved on 1 outer surface of shaft is equipped between two neighboring mill 4.5 both ends of sleeve are respectively with adjacent two A mill 4 abuts.It is sealed at abutting using sealing ring, for protecting shaft from slurry corrosion.

Sub-material rotor 3 is fixedly connected in 1 lower end of shaft.The sub-material rotor 3 includes the hollow columnar seat of bottom-open Body 31, the discharge hole 32 for surrounding the setting of 31 side wall array of pedestal, the feed opening 33 for being set to 31 top of pedestal.The feed opening 33 It is docked and connected with the hollow cavity lower end of shaft 1.

The medium inlet 11 for leading to 6 inner cavity of cylinder is equipped at the top of cylinder 6, being equipped in 6 bottom of cylinder, medium can be discharged Media outlet 7.Abrasive media is medium ball.

Medium ball enters in cylinder 6 by medium inlet 11, and when grinder operation, slurry passes through shaft 1 by feed pipe 2 Hollow section, and being segregated into grinding machine drum body 6 by sub-material rotor 3,1 high-speed rotation of shaft, under the drive of mill 4, Slurry is mixed with medium ball, and is collided, sheared, abrasive action.After a certain period of time, the object for meeting granularity requirements distribution is obtained Material is entered by overflow port 8 and is slipped in stock tank 9, is reached discharge port 10 and is discharged.

Below for having the grinder there are six mill, illustrate that slurry forms the mechanism of speed difference in vertical direction. As shown in fig. 6, left hand view mill spacing is different, (from top to bottom, first three mill spacing a is equal, third to the 6th mill Between spacing b it is equal, but b be less than a), it is a that the spacing between all mills of right part of flg is equal.

In the left hand view of Fig. 6, the particle speed near mill is V1, and spacing a particle speed is V2, spacing b particle Speed is V3.In the right part of flg of Fig. 6, particle speed only has V1, V2, since ore pulp can be considered that fluid is analyzed, by V1 fluid It is considered as entirety with V2 fluid, then has whole fluid velocity Va.

In the right part of flg of Fig. 6, speed difference exists only in the position of mill and abrasive disk space；And in left hand view, spacing etc. When, the position of mill and abrasive disk space there are while speed difference, grinding machine upper and bottom section there is also speed difference Va and Vb, The presence of this speed difference can not only strengthen grinding effect, while can provide power resources for slurry ascending motion.

Claims (9)

1. a kind of grinder, including cylinder (6), the overflow port (8) being set at the top of cylinder (6), it is characterised in that: further include from The hollow shaft (1) overflow port (8) insertion cylinder (6) intracavity bottom and do not contacted with cylinder (6) bottom turns in hollow Feed pipe (2) are connected at the top of axis (1)；Multiple mills (4) are housed in shaft (1) outer surface spacer sleeve.

2. grinder according to claim 1, it is characterised in that: the mill (4) is at least provided with three, in all mills (4) at least there are two the distance between the other adjacent mills (4) in the distance between adjacent mill (4) are unequal in.

3. grinder according to claim 1 or 2, it is characterised in that: be equipped with and be sleeved between two neighboring mill (4) The sleeve (5) of shaft (1) outer surface, sleeve (5) both ends are abutted with two neighboring mill (4) respectively.

4. grinder according to claim 1 or 2, it is characterised in that: each mill (4) includes disk body (41), surround The disk pawl (42) of disk body (41) setting.

5. grinder according to claim 4, it is characterised in that: the disk pawl (42) is equipped at intervals with multiple, adjacent mill (4) disk pawl (42) is staggered, and the orthographic projection of adjacent mill (4) disk pawl (42) is not overlapped.

6. grinder according to claim 5, it is characterised in that: the disk pawl (42) is laid with three around disk body (41) It is a.

7. grinder according to claim 1 or 2, it is characterised in that: be fixedly connected with sub-material rotor in shaft (1) lower end (3), the sub-material rotor (3) includes the hollow columnar pedestal (31) of bottom-open, is arranged around pedestal (31) side wall array Discharge hole (32), the feed opening (33) being set at the top of pedestal (31)；

The feed opening (33) and the hollow cavity lower end of shaft (1) are docked and connected.

8. grinder according to claim 1 or 2, it is characterised in that: be equipped with and lead in cylinder (6) at the top of cylinder (6) The medium inlet (11) of chamber is equipped with the media outlet (7) that medium can be discharged in cylinder (6) bottom.

9. grinder according to claim 1 or 2, it is characterised in that: be equipped at the top of cylinder (6) and slip stock tank (9), slip slurry Slot (9) bottom is slope, is equipped with discharge port (10) at slope foot；

The top height of the overflow port (8) is slipped stock tank (9) bottom.