Plastic ceramic pug added with coffee grounds and preparation method of plastic ceramic pug

Abstract

The invention provides plastic ceramic pug added with coffee grounds and a preparation method of the plastic ceramic pug, and belongs to the technical field of ceramic pug. Comprising ceramic pug and a plant matrix infiltrating into the ceramic pug, wherein the ceramic pug is prepared from the following raw material components in volume density: 1300 to 1500 kg / m < 3 > of clay, 250 to 300 kg / m < 3 > of quartz, 100 to 200 kg / m < 3 > of potassium albite, 300 to 500 kg / m < 3 > of coffee grounds, 100 to 200 kg / m < 3 > of latex and 300 to 400 kg / m < 3 > of water; the plant substrate is prepared from the following raw material components in volume density: 70-100 kg / m < 3 > of coffee grounds, 24-40 kg / m < 3 > of water and 1-5 kg / m < 3 > of plant fibers, and the coffee grounds comprise at least one of calcined coffee grounds and uncalcined coffee grounds; the plastic ceramic pug added with the coffee grounds has the characteristics that the materials are easy to obtain, the cost is low, the plant material characteristics of the coffee grounds are fully utilized on the basis of ensuring that the ceramic material can be formed, the pug structure is improved, and new pug is formed after firing.

Description

Technical Field

[0001] The invention belongs to the technical field of ceramic clay, and in particular relates to a plastic ceramic clay added with coffee grounds and a preparation method thereof. Background Art

[0002] As people's awareness of environmental protection increases, how to reuse waste has become an important research direction. As a common waste, the research on the reuse of coffee grounds has gradually attracted attention. However, there is no relevant technology for applying coffee grounds to ceramic clay. Traditional ceramic clay usually uses natural mineral raw materials such as clay, quartz, and feldspar. Its preparation process pollutes the environment and has limited resources. Therefore, the development of a new, environmentally friendly, and renewable ceramic clay has important practical significance and market prospects. Summary of the invention

[0003] The invention aims at solving the problems in the prior art and provides a plastic ceramic clay material with coffee grounds added therein and a preparation method thereof.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is: A plastic ceramic clay material with coffee grounds added therein comprises the ceramic clay material and a plant matrix infiltrated into the ceramic clay material.

[0005] Preferably, the ceramic mud is composed of raw material components with the following bulk densities: clay 1300-1500kg / m³, quartz 250-300kg / m 3 , potassium-sodium feldspar 100-200kg / m 3 , coffee grounds 300-500kg / m 3 , latex 100-200kg / m 3 and water 300-400kg / m 3 .

[0006] Preferably, the plant matrix is ​​composed of raw material components with the following bulk densities: coffee grounds 70-100 kg / m 3 , water 24-40 kg / m 3 and plant fiber 1-5 kg / m 3 .

[0007] Preferably, the coffee grounds are products of various coffee extraction grounds; the coffee grounds include one or more of uncalcined coffee grounds and calcined coffee grounds.

[0008] Preferably, the plant fibers include: one or more of straw, rice straw, and dry stems and leaves of plants.

[0009] Preferably, the clay is kaolin.

[0010] Preferably, the particle size of the quartz is 0.03-0.05 mm.

[0011] A method for preparing a plastic ceramic clay material with coffee grounds added, the specific steps are as follows: Step 1: Obtaining and calcining coffee grounds: Collect the coffee bean residue after coffee bean extraction, fully dry the collected coffee grounds, put them into a refractory container, ignite and calcine the coffee grounds, let the coffee grounds burn completely, and place them at room temperature. At this time, the moisture content of the coffee grounds is between 1% and 5%; then fully mix the coffee grounds with the mud; Step 2: Weighing raw materials: Weigh the components of ceramic mud, the components of plant matrix and latex according to volume density; Step 3: Stirring and mixing: Weigh one-third of the calcined coffee grounds and all other components of the ceramic clay excluding water in a stirring vessel and stir and mix; then add one-half of the water in the ceramic clay, one-third of the calcined coffee grounds and one-third of the latex to the stirring vessel and stir and mix; finally, add one-third of the calcined coffee grounds, one-half of the water in the ceramic clay and one-third of the latex to the stirring vessel and stir evenly to obtain a stirred mixed porcelain clay; wherein, the stirring time is controlled to be 20-60 seconds each time; Step 4: Mold forming: Place the mixed clay into a standard test mold of 150mm×150mm×150mm three times. Each time the mold is filled, vibrate it from top to bottom and from the periphery to the center for 10-20 seconds. After all the mixed clay is placed in the mold, tap and compact it; After 1 hour of molding, the mold is removed to obtain the mixed porcelain clay, and its surface is polished and trimmed; Step 5: preparing the plant matrix: sieving the uncalcined coffee grounds and plant fibers of the plant matrix in step 2 to remove impurities; then fully calcining the coffee grounds and plant fibers after the impurities are removed, adding the water weighed in the plant matrix and one-third of the latex after calcination and stirring evenly to obtain a viscous plant matrix; Step 6: Mixing: Add the viscous plant matrix in step 5 into the mixed porcelain clay in step 4 and mix and stir for 30 minutes to obtain plastic ceramic mud.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are: The present invention discloses a plastic ceramic clay material with coffee grounds added thereto and a method for making the same. The method comprises adding at least one of calcined coffee grounds or uncalcined coffee grounds and a plant matrix to a ceramic clay material containing kaolin. The carbon black and other organic compounds in the calcined coffee grounds may undergo a reduction reaction with the oxides in the kaolin at high temperatures to generate silicate compounds or other solid phase substances. The active organic matter and bioactive compounds in the uncalcined coffee grounds, such as caffeine and chlorogenic acid, may decompose or change at high temperatures to react with the oxides in the kaolin, thereby affecting the properties of the mixture. The plastic ceramic clay material with coffee grounds added in the present invention is easy to obtain and has low cost. On the basis of ensuring the plasticity and bonding properties of the ceramic clay material, the plant material characteristics of the coffee grounds are fully utilized to improve the clay material structure and reduce the traditional production cost. DETAILED DESCRIPTION

[0013] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0014] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0015] Example 1, a plastic ceramic clay material with coffee grounds added thereto, comprising ceramic clay material and a plant matrix infiltrated into the ceramic clay material; The raw materials of this embodiment include the following components according to volume density: (1) Ceramic mud: clay 1300-1500kg / m³, quartz 250-300kg / m³, potassium and sodium feldspar 100-200kg / m³, coffee grounds 300-500kg / m³, latex 100-200kg / m³ and water 300-400kg / m³; the latex is white latex, used as a thickener and adhesive; The clay model is 608, which is ordinary clay with a strength grade of 42.5; the particle size of quartz is 0.03-0.05mm; (2) Plant matrix: 50-70 kg / m³ of uncalcined coffee grounds, 20-30 kg / m³ of calcined coffee grounds, 25-40 kg / m³ of water, and 1-5 kg / m³ of plant fibers; at least one of uncalcined coffee grounds and uncalcined coffee grounds is used, and in this embodiment, a combination of the two is used; The specific steps of the method for making a plastic ceramic clay material with coffee grounds added in this embodiment are as follows: Step 1: Obtaining and calcining coffee grounds: Collect the coffee bean residue after coffee bean extraction, fully dry the collected coffee grounds, put them into a refractory container, ignite and calcine the coffee grounds, let the coffee grounds burn completely, and place them at room temperature. At this time, the moisture content of the coffee grounds is between 1% and 5%; then fully mix the coffee grounds with the mud; Step 2: Weighing raw materials: Weigh the components of ceramic mud, the components of plant matrix and latex according to volume density; the latex is white latex used as a thickener; Step 3: Stirring and mixing: Weigh one-third of the calcined coffee grounds and all other components of the ceramic clay excluding water in a stirring vessel and stir and mix; then add half of the water in the ceramic clay, one-third of the calcined coffee grounds and one-third of the latex to the stirring vessel and stir and mix; finally, add one-third of the calcined coffee grounds, half of the water in the ceramic clay and one-third of the latex to the stirring vessel and stir evenly to obtain a mixed porcelain clay; wherein, the stirring time is controlled to be 60 seconds each time; Step 4: Mold forming: Place the mixed clay into a standard test mold of 150mm×150mm×150mm three times. Each time the mold is filled, vibrate it from top to bottom and from the sides to the center for 10 seconds. After all the mixed clay is placed in the mold, tap and compact it; After 1 hour of molding, the mold is removed to obtain the mixed porcelain clay, and its surface is polished and trimmed; Step 5: Low-temperature firing: The mixed porcelain clay in step 4 is fired in a kiln at a temperature range of 700-900°C to obtain low-temperature fired mixed porcelain clay; low-temperature firing can increase the firmness of the body, reduce the difficulty of glazing in the later stage, and can also check whether the body is cracked or damaged; Step 6: water replenishment and glazing: the mixed porcelain clay fired at low temperature is water replenished and glazed, and then put into the kiln for high-temperature firing at 1300°C to obtain the plastic ceramic clay of Example 1.

[0016] Example 2: A plastic ceramic clay material with coffee grounds added thereto according to the present application, comprising the ceramic clay material and a plant matrix infiltrated into the ceramic clay material; The raw materials of this embodiment include the following components according to volume density: (1) Ceramic clay: kaolin 300kg / m 3 、Feldspar 500kg / m 3 、Quartz 60kg / m 3 , Calcite 30kg / m 3 , water 120kg / m 3 .

[0017] (2) Plant matrix: calcined coffee grounds 300 kg / m 3, Fermented coffee grounds 400kg / m 3 , water 100kg / m 3 , latex 15kg / m 3 and plant fiber 1-5kg m 3 ; The latex is white latex, which is used as a thickener and adhesive.

[0018] The ceramic clay model is 508, that is, grade 508 ceramic clay. The coffee grounds are sourced from: Panama Gesha, Jamaican Blue Mountain, Sumatra Mandheling, Ethiopia Yieldgacheffe, Guatemala Antigua, Kenya, Hawaii Kona, Sulawesi Toraja, and other coffee beans grown in a wide range of areas, and the residues left after grinding and extraction are used for secondary utilization; at least one of the uncalcined coffee grounds and the uncalcined coffee grounds is used, and in this embodiment, the two are used in combination; The plant fibers are straw and rice straw; A method for preparing a plastic ceramic clay material with coffee grounds added, the specific steps are as follows: Step 1: Obtaining and calcining coffee grounds: Collect the coffee bean residue after coffee bean extraction, fully dry the collected coffee grounds, put them in a refractory container, ignite and calcine the coffee grounds, let the coffee grounds burn completely, and place them at room temperature. At this time, the moisture content of the coffee grounds is between 1% and 5%. Then mix the coffee grounds with the mud thoroughly; Step 2: Weighing raw materials: Weigh the components of ceramic mud, the components of plant matrix and latex according to volume density; Step 3: Stirring and mixing: Weigh one-third of the calcined coffee grounds and all other components of the ceramic clay excluding water in a stirring vessel and stir and mix; then add half of the water in the ceramic clay, one-third of the calcined coffee grounds and one-third of the latex to the stirring vessel and stir and mix; finally, add one-third of the calcined coffee grounds, half of the water in the ceramic clay and one-third of the latex to the stirring vessel and stir evenly to obtain a mixed porcelain clay; wherein, the stirring time is controlled to be 60 seconds each time; Step 4: Mold forming: Place the mixed clay into a 150mm×150mm×150mm standard test mold three times. Each time the mold is filled, vibrate it from top to bottom and from the sides to the center for 15 seconds. After all the mixed clay is placed in the mold, tap and compact it; After one hour of molding, the mold is removed to obtain the mixed porcelain clay, which is polished and ground and then dried in the shade; Step 5: preparing the plant matrix: sieving the uncalcined coffee grounds and plant fibers of the plant matrix in step 2 to remove impurities; then fully calcining the coffee grounds and plant fibers after the impurities are removed, adding the water weighed in the plant matrix and one-third of the latex after calcination and stirring evenly to obtain a viscous plant matrix; Step 6: Mixing: Add the viscous plant matrix in step 5 into the mixed porcelain clay in step 4 and mix and stir for 30 minutes to obtain the plastic ceramic clay of Example 2.

[0019] Example 3: A plastic ceramic clay material with coffee grounds added thereto according to the present application, comprising the ceramic clay material and a plant matrix infiltrated into the ceramic clay material; The raw materials of this embodiment include the following components according to volume density: (1) Ceramic clay: kaolin 50kg / m 3 、Feldspar 20kg / m 3 、Talc 5kg / m 3 , Clay 15kg / m 3 、Water 10kg / m 3 .

[0020] (2) Plant matrix: calcined coffee grounds 30 kg / m 3 , Uncalcined coffee grounds 30kg / m 3 , latex 3.8kg / m 3 , water 7.6kg / m 3 and plant fiber 1-5kg m 3 ; The latex is white latex, which is used as a thickener and adhesive.

[0021] The ceramic clay model is 507, that is, grade 507 ceramic clay. The coffee grounds are extracted from any one or more of the following coffee beans: Panama Gesha, Jamaican Blue Mountain, Sumatra Mandheling, Ethiopia Yirgacheffe, Guatemala Antigua, Kenya, Hawaii Kona, etc. The plant fibers are straw and rice straw; A method for preparing a plastic ceramic clay material with coffee grounds added, the specific steps are as follows: Step 1: Obtaining and calcining coffee grounds: Collect the coffee bean residue after coffee bean extraction, fully dry the collected coffee grounds, put them in a refractory container, ignite and calcine the coffee grounds, let the coffee grounds burn completely, and place them at room temperature. At this time, the moisture content of the coffee grounds is between 1% and 5%. Then mix the coffee grounds with the mud thoroughly; Step 2: Weighing raw materials: Weigh the components of ceramic mud, the components of plant matrix and latex according to volume density; Step 3: Stirring and mixing: Weigh one-third of the calcined coffee grounds and all other components of the ceramic clay excluding water in a stirring vessel and stir and mix; then add half of the water in the ceramic clay, one-third of the calcined coffee grounds and one-third of the latex to the stirring vessel and stir and mix; finally, add one-third of the calcined coffee grounds, half of the water in the ceramic clay and one-third of the latex to the stirring vessel and stir evenly to obtain a mixed porcelain clay; wherein, the stirring time is controlled to be 60 seconds each time; Step 4: Mold forming: Place the mixed clay into a 150mm×150mm×150mm standard test mold three times. Each time the mold is filled, vibrate it from top to bottom and from the sides to the center for 15 seconds. After all the mixed clay is placed in the mold, tap and compact it; After one hour of molding, the mold is removed to obtain the mixed porcelain clay, which is polished and ground and then dried in the shade; Step 5: preparing the plant matrix: sieving the uncalcined coffee grounds and plant fibers of the plant matrix in step 2 to remove impurities; then fully calcining the coffee grounds and plant fibers after the impurities are removed, adding the water weighed in the plant matrix and one-third of the latex after calcination and stirring evenly to obtain a viscous plant matrix; Step 6: Mixing: Add the viscous plant matrix in step 5 into the mixed porcelain clay in step 4 and mix and stir for 30 minutes to obtain the plastic ceramic clay of Example 3.

[0022] The plastic ceramic clay materials prepared in Examples 1 to 3 were subjected to compressive strength tests, acid-base tests, and porosity (through porosity) tests; wherein the experimental standards and experimental methods used in the experiments are as follows: Compressive strength test: "Standard for test methods of mechanical properties of ordinary concrete" GB / T50081-2002; Acid-base test: Hydrogen ion concentration index (PH value), break the test piece that has been cured for 28 days, grind it thoroughly, weigh 10g of ceramic clay powder and add it to 100g of distilled water, stir it every 5 minutes, and use an acidity meter to measure its pH value after 2 hours; Void ratio (through porosity) test: Measure the ratio of the volume of voids in the test block to the total volume of the test block.

[0023] The experimental results are shown in Table 1 below. Table 1 Experimental results of compressive strength test, acid-base test, and porosity (through porosity) test of Example 1-Example 3

[0024] As can be seen from the above table, the ceramic clay materials prepared in Examples 1 to 3 have excellent compressive strength, large porosity, and low pore basicity, and are suitable for use in ceramic clay materials; According to the ceramic clay material with added coffee grounds involved in Examples 1 to 3, because calcined and uncalcined coffee grounds and plant matrix are added, the carbon black and other organic compounds in the calcined coffee grounds may undergo a reduction reaction with the oxides in kaolin at high temperatures to generate silicate compounds or other solid phase substances. The active organic matter and bioactive compounds in the uncalcined coffee grounds, such as caffeine and chlorogenic acid, will decompose or change at high temperatures to react with the oxides in kaolin, affecting the properties of the mixture. The plastic ceramic clay material with added coffee grounds of the present invention is easy to obtain and has low cost. It improves the clay structure while ensuring the plasticity and bonding properties of the ceramic clay, thereby reducing the traditional production cost.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A plastic ceramic clay material with coffee grounds added, characterized in that: It includes ceramic clay and a plant matrix infiltrated into the ceramic clay.

2. The plastic ceramic clay material with coffee grounds added according to claim 1, characterized in that: The ceramic mud is composed of the following raw material components with bulk density: clay 1300-1500kg / m³, quartz 250-300kg / m 3 , potassium-sodium feldspar 100-200kg / m 3 , coffee grounds 300-500kg / m 3 , latex 100-200kg / m 3 and water 300-400kg / m 3 .

3. The plastic ceramic clay material with coffee grounds added according to claim 1, characterized in that: The plant matrix is ​​composed of raw material components with the following bulk densities: coffee grounds 70-100 kg / m 3 , water 24-40 kg / m 3 and plant fiber 1-5 kg / m 3 .

4. The plastic ceramic clay material with coffee grounds added according to claim 3, characterized in that: The coffee grounds are the products of various coffee extraction grounds; the coffee grounds include one or more of uncalcined coffee grounds and calcined coffee grounds.

5. The plastic ceramic clay material with coffee grounds added according to claim 3, characterized in that: The plant fibers include: one or more of straw, rice straw, and dry stems and leaves of plants.

6. The plastic ceramic clay material with coffee grounds added according to claim 2, characterized in that: The clay is kaolin.

7. The plastic ceramic clay material with coffee grounds added according to claim 2, characterized in that: The particle size of the quartz is 0.03-0.05 mm.

8. The method for preparing a plastic ceramic clay material with coffee grounds added according to any one of claims 1 to 7, characterized in that: The specific steps are as follows: Step 1: Obtaining and calcining coffee grounds: Collect the coffee bean residue after coffee bean extraction, fully dry the collected coffee grounds, put them into a refractory container, ignite and calcine the coffee grounds, let the coffee grounds burn completely, and place them at room temperature. At this time, the moisture content of the coffee grounds is between 1% and 5%; then fully mix the coffee grounds with the mud; Step 2: Weighing raw materials: Weigh the components of ceramic mud, the components of plant matrix and latex according to volume density; Step 3: Stirring and mixing: Weigh one-third of the calcined coffee grounds and all other components of the ceramic clay excluding water in a stirring vessel and stir and mix; then add one-half of the water in the ceramic clay, one-third of the calcined coffee grounds and one-third of the latex to the stirring vessel and stir and mix; finally, add one-third of the calcined coffee grounds, one-half of the water in the ceramic clay and one-third of the latex to the stirring vessel and stir evenly to obtain a stirred mixed porcelain clay; wherein, the stirring time is controlled to be 20-60 seconds each time; Step 4: Mold forming: Place the mixed clay into a standard test mold of 150mm×150mm×150mm three times. Each time the mold is filled, vibrate it from top to bottom and from the periphery to the center for 10-20 seconds. After all the mixed clay is placed in the mold, tap and compact it; After 1 hour of molding, the mold is removed to obtain the mixed porcelain clay, and its surface is polished and trimmed; Step 5: preparing the plant matrix: sieving the uncalcined coffee grounds and plant fibers of the plant matrix in step 2 to remove impurities; then fully calcining the coffee grounds and plant fibers after the impurities are removed, adding the water weighed in the plant matrix and one-third of the latex after calcination and stirring evenly to obtain a viscous plant matrix; Step 6: Mixing: Add the viscous plant matrix in step 5 into the mixed porcelain clay in step 4 and mix and stir for 30 minutes to obtain plastic ceramic mud.

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