CN101700971B

CN101700971B - Method for producing petuntse from waste ceramics

Info

Publication number: CN101700971B
Application number: CN2009100419620A
Authority: CN
Inventors: 蔡廷祥; 安鹤芹; 赵立泉; 任锋
Original assignee: GREAT WALL GROUP CO Ltd
Current assignee: Great Wall Of Culture Group Holding Co ltd Guangdong
Priority date: 2009-08-12
Filing date: 2009-08-12
Publication date: 2011-11-23
Anticipated expiration: 2029-08-12
Also published as: CN101700971A

Abstract

The invention discloses a method for producing petuntse from waste ceramics, which comprises the following producing steps: taking the waste ceramics, pulverizing and ball milling, and then, sieving to obtain waste ceramic particles for standby, wherein the fineness of each ceramic particle is less than or equal to 50mu m; according to the percentage by weight, taking 7-12% of quartz, 8-13% of feldspar, 15-20% of mechanical pounded pug and 20-30% of kaolin to be uniformly mixed with 40-50% of waste ceramic particles for standby, putting the mixture in a ball mill for mixing and ball milling for 25-35 hours to obtain pug, wherein the ball milling fineness is controlled over 325 meshes, and the sieve residue is less than 0.2%; and sieving, de-ironing, filter-pressing and pugging the pug to obtain the petuntse. In the invention, by controlling the fineness of the petuntse, the plasticity of the petuntse is improved to meet the production requirements, the produced petuntse has good plasticity, the component types needed by producing the petuntse are reduced, various ceramic and porcelanic wastes can be recycled, and compared with the traditional method, the production cost of the method of the invention is greatly saved.

Description

Make the method for porcelain mud with waste ceramic

Technical field

The present invention relates to ceramic field, specifically a kind of method of making porcelain mud with waste ceramic.

Background technology

China is Production of Ceramics big country in the world, and the waste ceramic that produces in annual the production is up to the hundreds of thousands of ton.Because waste ceramic can't obtain degraded through high temperature sintering or burn till in natural environmental condition, abandon in the farmland, places such as mountain region, road both sides, all environment is caused severe contamination.Before this, because the recycling of waste ceramic is only at the porcelain waste product, a large amount of ceramic waste products are not utilized, and technology does not have universal, useless porcelain tooling cost is higher, causes most Production of Ceramics enterprises waste ceramic to be abandoned and cause the wasting of resources and serious environmental pollution.

Because government and environmental protection department advocating and supporting, more domestic scientific research institutions and Production of Ceramics enterprise be to useless porcelain utilization project verification research, technically obtains certain progress, makes waste ceramic obtain utilizing on a part of porcelain kind is produced.At present, begin, but fail in ceramic producing region, to popularize in the useless porcelain utilization of snitaryware and domestic ceramics; And a large amount of waste ceramics is not utilized yet.

Summary of the invention

For overcoming above-mentioned deficiency, the invention provides a kind of method of making porcelain mud with waste ceramic.

The present invention is achieved by the following technical solutions:

The preparation method of the porcelain mud that waste ceramic of the present invention is made comprises following production stage:

(1), get waste ceramic (can be pottery, porcelain or its mixed), standby through pulverizing and ball milling, sieve then the waste ceramic particle of making fineness≤50 μ m;

(2), get quartz, feldspar, machine treadle-operated tilt hammer for hulling rice mud, kaolin and above-mentioned standby waste ceramic particle mixing by the weight percent of waste ceramic 40～50%, quartz 7～12%, feldspar 8～13%, machine treadle-operated tilt hammer for hulling rice mud 15～20%, kaolin 20～30% and put into ball mill, mixing and ball milling was made pug in 25～35 hours, and the ball milling fineness was controlled at 325 mesh screen residues less than 0.2% (being equivalent to fineness is 44 μ m);

(3), again with above-mentioned pug through sieving, after deironing, press filtration and the pugging, making porcelain mud.

The contriver finds that after deliberation waste ceramic has not had plasticity-owing to process high-temperature calcination itself fully after pulverizing, blank cracking when vast scale ground adding waste ceramic can make the plasticity-reduction of porcelain mud and cause formed product.The not enough method commonly used of solution porcelain mud plasticity-is ratio, introducing smectites raw material or the interpolation softening agent that increases plastic clay when formulating of recipe in the Production of Ceramics, and take aforesaid method can increase substantially the cost of porcelain mud, and product is more at the sintering process volatile matter, influences quality product.

The contriver has carried out a series of formula tests to this, raw materials used chemical ingredients is as shown in table 1.

Table 1:

Material name	Igloss	SiO ₂	Al ₂O ₃	Fe ₂O ₃	TiO ₂	CaO	MgO	K ₂O	Na ₂O	Resultant
											Waste ceramic	0.65	73.16	20.52	0.67	0.14	0.94	2.12	1.43	0.85	100.48
Quartzy	0.17	98.65	0.64	0.21	0.10	0.27	0.15	0.08	0.12	100.39
											Feldspar	0.43	69.75	16.95	0.23	0.08	0.53	-	9.47	2.78	100.22
Machine treadle-operated tilt hammer for hulling rice mud	8.95	53.29	32.60	0.31	0.11	0.15	0.10	4.33	0.32	100.16
											Kaolin	11.14	50.01	33.69	0.27	0.01	0.85	0.41	2.83	0.38	99.59

In the test, the contriver tries hard to add more waste ceramic, with economic benefit and the social benefit that improves this project to greatest extent, the additional proportion of waste ceramic is increased to 50% from 15% always, the contriver finds, increase along with waste ceramic ratio in the prescription, the plastic performance of porcelain mud also becomes worse and worse, when the additional proportion of waste ceramic surpasses 30%, the plasticity-of the porcelain mud non-constant that become, injection forming split base more than 33%, can't ordinary production with conventional production technique.In order to address this problem, it is main physics method for plasticizing that the contriver has taked refinement waste ceramic and other component fineness.The contriver finds in test, and when the fineness refinement of the porcelain mud made from waste ceramic during to 44 μ m, significant improvement can take place its plasticity-, and porcelain mud granular size corresponding relation plastic with it is shown in Fig. 1 and table 2.Like this, just can improve its plasticity-by the fineness (size of largest particle diameter) of control porcelain mud.Confirm through repetition test repeatedly and through producing practice in batches, the porcelain mud made from conventional ball mill grinding waste ceramic, when largest particle diameter≤75 μ m, porcelain mud plasticity-is relatively poor; Plasticity-has some improvement when≤63 μ m; When＜44 μ m, present gratifying plasticity-.In view of the above, can add the smectites raw material fully, also need not add softening agent and design the porcelain mud prescription of waste ceramic additional proportion more than 40%.

Table 2:

Porcelain mud largest particle diameter (μ m)	85	75	63	44
					Index of plasticity	2.13	2.19	2.48	2.59

Through preferred, we have determined the prescription of batch process in all prescriptions of waste ceramic additional proportion more than 40%: waste ceramic 40～50%, quartz 7～12%, feldspar 8～13%, machine treadle-operated tilt hammer for hulling rice mud 15～20%, kaolin 20～30%; The porcelain mud that adopts physics method for plasticizing of the present invention to produce by this prescription meets the requirement of Production of Ceramics.

The present invention has changed traditional useless porcelain and has prepared porcelain mud method, ratio with traditional increase plastic clay, introduce the smectites raw material or add softening agent method difference fully, break through from the physicals aspect of porcelain mud, fineness (size of largest particle diameter) by control porcelain mud is improved to its plasticity-and satisfies production requirement, technical schemes a kind of and the different designs of previous methods are provided, the porcelain mud plasticity-of making is good, reduce porcelain mud and produced required component kind, recyclablely utilize various ceramics and porcelain waste product, and production cost to be saved than traditional method many.

Description of drawings

Fig. 1 is porcelain mud largest particle diameter corresponding relation figure plastic with it.

Embodiment

The present invention will be described in detail by the following examples.

Get waste ceramic, standby through pulverizing and ball milling, sieve then the waste ceramic particle of making fineness≤50 μ m; Get quartz, feldspar, machine treadle-operated tilt hammer for hulling rice mud, kaolin and above-mentioned standby waste ceramic particle mixing by the weight percent of waste ceramic 45%, quartz 8%, feldspar 10%, machine treadle-operated tilt hammer for hulling rice mud 15%, kaolin 22% and put into ball mill, mixing and ball milling was made pug in 30 hours, and the ball milling fineness was controlled at 325 mesh screen residues less than 0.2%; Again with above-mentioned pug through sieving, after deironing, press filtration and the pugging, making porcelain mud.

Produce the display art pottery with the above-mentioned porcelain mud that makes, porcelain mud plasticity-is good, the damaged less than 5% of the blank cracking of injection forming; Burn till in 1230～1250 ℃ of temperature ranges, burn till all rightly, water-intake rate fluctuates 0.4～0.8%, burns till the requirement that product meets national display art pottery standard GB/T 13524-1992.

Claims

1. the preparation method of the porcelain mud made of a waste ceramic is characterized in that, comprises following production stage:

(1), get waste ceramic, standby through pulverizing and ball milling, sieve then the waste ceramic particle of making fineness≤50 μ m;

(2), get quartz, feldspar, machine treadle-operated tilt hammer for hulling rice mud, kaolin and above-mentioned standby waste ceramic particle mixing by the weight percent of waste ceramic 40～50%, quartz 7～12%, feldspar 8～13%, machine treadle-operated tilt hammer for hulling rice mud 15～20%, kaolin 20～30% and put into ball mill, mixing and ball milling was made pug in 25～35 hours, and the ball milling fineness was controlled at 325 mesh screen residues less than 0.2%;