CN106799786A

CN106799786A - Overfall method

Info

Publication number: CN106799786A
Application number: CN201710159604.4A
Authority: CN
Inventors: 宋立新; 毛法坚; 张少华; 姚久泽
Original assignee: Lixil American Standard Sanitary Ware Manufacturing Shanghai Co Ltd
Current assignee: Lixil American Standard Sanitary Ware Manufacturing Shanghai Co Ltd
Priority date: 2017-03-17
Filing date: 2017-03-17
Publication date: 2017-06-06

Abstract

A kind of overfall method, including：Overfall is injected into overfall container；After overfall sifting step and overfall iron removal being carried out to the overfall in the overfall container, it is stirred in the mixing container with the new slurry after old step and is mixed, newly starches the old time 58 days, mixing time 57 hours, 10 14 revs/min of mixing speed, mixed volume ratio：Overfall 50% 55%, new slurry 45% 50%.

Description

Overfall method

Technical field

The present invention relates to ceramic fabrication technique, more particularly to a kind of overfall method.

Background technology

Bathroom is produced as injection forming, as shown in Fig. 2 the mud for having 50%-60% or so after the completion of slip casting every time is returned to Raw material workshop mixes with fresh mud, and old Posterior circle uses (fresh mud needs more than 5 days ability of old homogenizing Stable performance is reached, and overfall is to need not move through old homogenizing flow).It is steady that existing production technology cannot meet mud property It is fixed.

Shortcoming：

1st, impurity is difficult to find in overfall；

2nd, to be mixed into ratio uncontrollable for overfall；

3rd, it is old together with overfall, cause newly to starch old homogenising time not enough, unstable properties；

4th, mud cracking mould experiment：Cracking 2-3 bars (3 hours).

The content of the invention

Based on this, for above-mentioned technical problem, there is provided a kind of overfall method.

In order to solve the above technical problems, the present invention is adopted the following technical scheme that：

A kind of overfall method, including：

Overfall is injected into overfall container；

After carrying out overfall sifting step and overfall iron removal to the overfall in the overfall container, after old step New slurry be stirred mixing in the mixing container, newly starch 5-8 days old time, mixing time 5-7 hours, mixing speed 10- 14 revs/min, mixed volume ratio：Overfall 50%-55%, newly starches 45%-50%.

This programme also includes before the old step：

New slurry is stirred；

After newly starching a sifting step, injection is new to starch container to new slurry after to stirring；

After secondary sifting step and new slurry iron removal are newly starched the new slurry in new slurry container, inject old appearance Device.

Sifting step of the new slurry is sieved by the vibratory sieve of sieve mesh 20.

The overfall sifting step and newly starch secondary sifting step and carried out by the vibratory sieve of sieve mesh 120-140 respectively Sieve, the overfall iron removal and new slurry iron removal are carried out except iron by electric magnetic iron remover respectively.

The overfall container, the newly capacity of slurry container, old container and stainless steel are 70 tons, and the old container It is multiple.

The present invention controls the liquid level in slip casting bucket by the first liquid level and the second liquid level, and phase can be kept in slip casting To constant grouting pressure, and pressure is smaller, prevents from before die gap spillage, mud injection molding by horizontal level device come really Protect when mud enters mould and keep sustained height (default liquid level), it is ensured that between the air in pipeline is all emptied and reduces base substrate Thickness difference.

Brief description of the drawings

The present invention is described in detail with reference to the accompanying drawings and detailed description：

Fig. 1 is schematic diagram of the invention；

Fig. 2 is the schematic diagram of traditional overfall technique.

Specific embodiment

As shown in figure 1, a kind of overfall method, including：

Overfall is injected into overfall container.

After overfall sifting step and overfall iron removal are carried out to the overfall in overfall container, with old step after it is new Slurry is stirred mixing in the mixing container, newly starches 5-8 days old time, mixing time 5-7 hours, mixing speed 10-14 turns/ Minute, mixed volume ratio：Overfall 50%-55%, newly starches 45%-50%.

In mixed mud injection moulding container, it is easy to subsequent forming technique.

The impurity that this method is sieved by overfall and overfall is filtered in overfall except iron, and starch old rear by above-mentioned newly Preferably mixed proportion is mutually mixed, it is ensured that the old time of new slurry, be well mixed, efficiency high improves the quality of mud, So as to improve subsequent product Forming Quality, ftracture mould result of the test：＜ 1 (3 hours).

It is noted that there are following steps before old step is carried out to new slurry：

New slurry is stirred.

After newly starching a sifting step, injection is new to starch container to new slurry after to stirring.

Wherein, newly sifting step of slurry is sieved by the vibratory sieve of sieve mesh 20；Overfall sifting step and new slurry Secondary sifting step is sieved by the vibratory sieve of sieve mesh 120-140 respectively, overfall iron removal and newly starches iron removal Carried out except iron by electric magnetic iron remover respectively.

Specifically, overfall container, newly slurry container, the capacity of old container and stainless steel be 70 tons, and old container It is multiple.

Embodiment 1

A kind of overfall method, including：

First, new slurry is stirred.

2nd, carried out after new slurry once sieves by the new slurry after the vibratory sieve of sieve mesh 20 is to stirring, injection new slurry container.

3rd, secondary sieving is newly starched to the new slurry in new slurry container by the vibratory sieve of sieve mesh 120.

4th, after the new slurry after electric magnetic iron remover is to newly starching secondary sieving carries out new slurry except iron, three old appearances are injected Device.

5th, newly starch old 5 days in three old containers.

6th, overfall is injected into overfall container.

7th, overfall sieving is carried out to the overfall in overfall container by the vibratory sieve of sieve mesh 120.

8th, after the overfall after electric magnetic iron remover sieves to overfall carries out overfall except iron, mixed with the new slurry after old Mixing, mixing time 5 hours, 14 revs/min of mixing speed, mixed volume ratio are stirred in conjunction container：Overfall 50%, new slurry 50%.

Wherein, vibratory sieve (diameter 1000mm, double-deck) is two, and every efficiency is 5 ton hours.

Embodiment 2

A kind of overfall method, including：

First, new slurry is stirred.

3rd, secondary sieving is newly starched to the new slurry in new slurry container by the vibratory sieve of sieve mesh 140.

5th, newly starch old 8 days in three old containers.

6th, overfall is injected into overfall container.

7th, overfall sieving is carried out to the overfall in overfall container by the vibratory sieve of sieve mesh 140.

8th, after the overfall after electric magnetic iron remover sieves to overfall carries out overfall except iron, mixed with the new slurry after old Mixing, mixing time 7 hours, 10 revs/min of mixing speed, mixed volume ratio are stirred in conjunction container：Overfall 55%, new slurry 45%.

Embodiment 3

A kind of overfall method, including：

First, new slurry is stirred.

3rd, secondary sieving is newly starched to the new slurry in new slurry container by the vibratory sieve of sieve mesh 130.

5th, newly starch old 6 days in three old containers.

6th, overfall is injected into overfall container.

7th, overfall sieving is carried out to the overfall in overfall container by the vibratory sieve of sieve mesh 130.

8th, after the overfall after electric magnetic iron remover sieves to overfall carries out overfall except iron, mixed with the new slurry after old Mixing, mixing time 6 hours, 12 revs/min of mixing speed, mixed volume ratio are stirred in conjunction container：Overfall 52%, new slurry 48%.

But, those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to explanation originally Invention, and be not used as being limitation of the invention, as long as in spirit of the invention, to embodiment described above Change, modification will all fall in the range of claims of the present invention.

Claims

1. a kind of overfall method, it is characterised in that including：

Overfall is injected into overfall container；

After carrying out overfall sifting step and overfall iron removal to the overfall in the overfall container, with old step after it is new Slurry is stirred mixing in the mixing container, newly starches 5-8 days old time, mixing time 5-7 hours, mixing speed 10-14 turns/ Minute, mixed volume ratio：Overfall 50%-55%, newly starches 45%-50%.

2. a kind of overfall method according to claim 1, it is characterised in that also include before the old step：

New slurry is stirred；

After secondary sifting step and new slurry iron removal are newly starched the new slurry in new slurry container, inject old container.

3. a kind of overfall method according to claim 2, it is characterised in that described new sifting step of slurry passes through sieve mesh 20 vibratory sieve is sieved.

4. a kind of overfall method according to Claims 2 or 3, it is characterised in that the overfall sifting step and new slurry Secondary sifting step is sieved by the vibratory sieve of sieve mesh 120-140 respectively, and the overfall iron removal and new slurry remove iron Step is carried out except iron by electric magnetic iron remover respectively.

5. a kind of overfall method according to claim 4, it is characterised in that the overfall container, newly slurry container, old appearance The capacity of device and stainless steel is 70 tons, and the old container is multiple.