CN206334730U - A kind of lining board of grinder bolt hole leakproof sizing device - Google Patents

Abstract

The utility model relates to an anti-leakage slurry device for the bolt hole of the mill liner, which is characterized in that it comprises a mill liner, a rubber backing plate, a mill cylinder, square head bolts, a bowl seat, a sealing packing ring, and a gasket , nuts, bowl-shaped seat welded on the mill cylinder, the mill liner is fixed to the mill cylinder by lag bolts, a layer of rubber backing plate is placed between the mill liner and the mill cylinder, and the sealing packing ring After inserting the lag bolt, press it with a gasket, and then screw it on the lag bolt with a nut, press the gasket and sealing packing ring into the bowl seat through the nut, so that the sealing packing ring fills the inner cavity of the bowl seat and Prevent the slurry from leaking out. The utility model solves the problem of slurry leakage in the bolt hole of the liner plate of the mineral processing plant, improves the working environment while reducing metal loss, and has the characteristics of simple manufacture, convenient operation and maintenance, and the like.

Description

A mill liner bolt hole slurry leakage prevention device

technical field

The utility model relates to an anti-leakage slurry device for the bolt hole of the liner plate of an ore dressing mill.

Background technique

Grinding is a necessary process for metal and non-metal mine concentrators. After crushing and grinding, the ore reaches the required particle size before entering the separation process. Therefore, ore grinding is the premise of beneficiation, and the quality of ore grinding directly affects the technical and economic indicators of ore beneficiation. Most of the ore grinding in the concentrator is wet grinding. A certain amount of grinding medium, such as steel balls, steel rods, etc., is added to the mill barrel, and the ore is added to a certain concentration after being added to the mill for grinding. In the rotating mill barrel, it will be violently impacted and stripped by the grinding medium, and gradually become thinner to meet the selected particle size requirements. When the ore and the grinding medium collide violently with the mill liner inside the mill barrel, the mill liner will wear out gradually, and the lag bolts fastening the mill liner will also begin to loosen. The slurry will leak out along the bolt holes, causing metal loss and affecting environmental sanitation.

Contents of the invention

The purpose of the utility model is to provide an anti-leakage device of the bolt hole of the mill liner, which overcomes the original defect that the bolt hole of the mill liner is easy to leak.

A mill liner bolt hole anti-leakage device, characterized in that it includes a mill liner, a rubber backing plate, a mill cylinder, lag bolts, a bowl seat, a sealing packing ring, a gasket, a nut, a bowl The shaped seat is welded on the mill barrel, the mill liner is fixed to the mill barrel through lag bolts, a layer of rubber pad is placed between the mill liner and the mill barrel, and the sealing packing ring is inserted into the square head Press the bolts with gaskets, and then screw the nuts onto the lag bolts, and press the gaskets and packing rings into the bowl seat through the nuts, so that the packing rings fill the inner cavity of the bowl seat and prevent the slurry from leaking out.

Further, the round hole of the bowl-shaped seat is aligned with the bolt hole of the lining plate of the mill cylinder, and the outer edge of the bowl-shaped seat and the outer wall of the mill cylinder are fully welded without gaps. The diameter of the round hole of the bowl-shaped seat is larger than The diameter of the bolt hole of the liner of the mill cylinder, and the material of the bowl seat are the same as that of the mill cylinder.

Further, the thickness of the rubber pad between the mill liner and the mill cylinder is 3-6mm.

Further, the sealing packing ring fills the inner cavity of the bowl seat, and is a hemp ring or a rubber sealing gasket.

Further, the taper angle of the sink hole of the mill liner is consistent with the taper angle of the lag bolt.

The utility model solves the problem of slurry leakage in the bolt hole of the liner plate of the mineral processing plant, improves the working environment while reducing metal loss, and has the characteristics of simple manufacture, convenient operation and maintenance, and the like.

Description of drawings

Fig. 1 is the structural representation of the utility model;

In the figure: 1 mill liner, 2 rubber backing plate, 3 mill cylinder, 4 bowl seat, 5 lag bolt, 6 washer, 7 nut, 8 packing ring.

detailed description

Now describe in detail the implementation of the utility model structure in conjunction with the accompanying drawings:

As shown in Figure 1: A mill liner bolt hole anti-leakage device, including mill liner 1, rubber backing plate 2, mill cylinder 3, lag bolt 5, bowl seat 4, sealing packing ring 8. Gasket 6, nut 7, bowl-shaped seat 4 is welded on mill cylinder 3, the round hole of bowl-shaped seat 4 is aligned with the liner bolt hole of mill cylinder 3, and the outer surface of bowl-shaped seat 4 The edge and the mill barrel 3 are fully welded without gaps, the diameter of the round hole of the bowl seat 4 is larger than the diameter of the liner bolt hole of the mill barrel 3, and the material of the bowl seat 4 is the same as that of the mill barrel 3 , the mill liner 1 is fixed to the mill cylinder 3 through lag bolts 5, the taper angle of the sink hole of the mill liner 1 is consistent with the square head taper angle of the lag bolt 5, and the mill liner 1 and the mill There is a layer of rubber backing plate 2 between the cylinder body 3, the thickness of the rubber backing plate 2 is 3-6mm, the sealing packing ring 8 is hemp ring or rubber sealing pad, and the sealing packing ring 8 is inserted into the lag bolt 5 and then used as a gasket 6 Press it down, and then screw the nut 7 onto the lag bolt 5, press the gasket 6 and the sealing packing ring 8 into the bowl seat 4 through the nut 7, so that the sealing packing ring 8 fills the inner cavity of the bowl seat 4 and Stop the slurry from leaking out.

When installing the mill liner 1 in the mineral processing plant, the pre-processed bowl seat 4 is welded to each liner bolt hole on the mill cylinder 3 one by one, the round hole of the bowl seat 4 is connected to the mill cylinder 3 liner bolt holes are aligned, the outer edge of the bowl-shaped seat 4 and the outer wall of the mill barrel 3 are fully welded without gaps, and then a 3-6mm rubber backing plate is placed on the inner wall of the mill barrel 3, and the Lag bolts 5 pass through the sink holes of the liner to fix the liner to the mill cylinder 3, and after inserting 1 to 3 sealing packing rings 8 such as hemp rings or rubber gaskets into the lag bolt 5, use 1 ～Three pieces of spacers 6 are inserted into the lag bolts 5, and finally the nuts 7 are screwed into the lag bolts 5, and tightened firmly until the inner cavity of the bowl-shaped seat 4 is filled with the sealing packing ring 8 and the lining plate is fastened without loosening. According to this method, all the liners of the mill are installed, which can achieve the purpose of no leakage of ore pulp through the bolt holes of the liners.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, those who make several equivalent substitutions or obvious modifications without departing from the concept of the utility model, and have the same performance or use, shall be deemed to belong to the submitted utility model. The scope of protection determined by the claims.

Claims (5)

1. a kind of lining board of grinder bolt hole leakproof sizing device, it is characterised in that：Including lining board of grinder（1）, rubber mat plate（2）, mill Machine drum body（3）, square head bolt（5）, calathiform base（4）, sealing drilled packing ring（8）, pad（6）, nut（7）, calathiform base（4）It is welded on Grinding mill barrel（3）On, lining board of grinder（1）Pass through square head bolt（5）With grinding mill barrel（3）It is fixed, lining board of grinder（1）With grinding machine cylinder Body（3）Between one layer of rubber mat plate of pad（2）, sealing drilled packing ring（8）Pack into square head bolt（5）After use pad（6）Push down, then use spiral shell It is female（7）It is screwed into square head bolt（5）On, pass through nut（7）By pad（6）And sealing drilled packing ring（8）It is pressed into calathiform base（4）In, make Sealing drilled packing ring（8）Full of calathiform base（4）Inner chamber and prevent ore pulp from spilling.

2. lining board of grinder bolt hole leakproof sizing device according to claim 1, it is characterised in that：Calathiform base（4）Circular hole With grinding mill barrel（3）Lining-plate bolt hole align welding, calathiform base（4）Outward flange and grinding mill barrel（3）Outer wall accomplishes full weld Tight, calathiform base（4）Circularhole diameter be more than grinding mill barrel（3）Lining-plate bolt bore dia, calathiform base（4）Material and mill Machine drum body（3）Material it is identical.

3. lining board of grinder bolt hole leakproof sizing device according to claim 2, it is characterised in that：Lining board of grinder（1）With mill Machine drum body（3）Between the rubber mat plate that pads（2）Thickness is 3~6mm.

4. the lining board of grinder bolt hole leakproof sizing device according to Claims 2 or 3, it is characterised in that：Sealing drilled packing ring（8） Full of calathiform base（4）Inner chamber, be fiber crops circle or rubber gasket.

5. lining board of grinder bolt hole leakproof sizing device according to claim 1 or 2, it is characterised in that：Lining board of grinder（1）'s Deep gouge hole cone angle and square head bolt（5）Square toes cone angle it is consistent.