Environment-friendly recycled cat litter and preparation method therefor

Abstract

An environment-friendly recycled cat litter, belonging to the technical field of cat litter, and comprising a cat litter base body and a cat litter surface layer. The cat litter base body is made from cut-off and crushed sanitary material wastes, the cat litter base body is a cylinder having a diameter of 3-8 mm and a length of 3-10 mm, and the cat litter base body accounts for 40%-88% of a total weight of the cat litter material. The cat litter surface layer tightly wraps the cat litter base body, and the material of the cat litter surface layer is made from a mixture of dust collected and recycled by dust collectors in the sanitary product industry and starch, the recycled dust accounting for 10%-58% of the total weight of the cat litter material, and the starch accounting for 1%-2% of the total weight of the cat litter material. The preparation method for the environment-friendly recycled cat litter uses recycled sanitary materials as the main materials, and the main components are made from recycled sanitary material scraps and dust, thereby making full use of the recycled sanitary material dust.

Description

Environmentally friendly recycled cat litter and preparation method thereof Technical Field

[0001] The invention belongs to the technical field of cat litter, and in particular relates to an environmentally friendly recycled cat litter and a preparation method thereof. Background Art

[0002] Cat litter is a material used by cats to bury feces and urine. It has good water absorption and is typically used in conjunction with a litter box (or cat toilet). An appropriate amount of cat litter is poured into the litter box, and trained cats will step into the litter box and deposit their feces on top of it when they need to defecate. The use of cat litter is one of the most significant advancements in cat culture. Early cat litters were primarily non-clumping, primarily used to collect feces. However, with the continuous advancement of cat litter technology, people have expanded beyond simple collection, and clumping litter, wood litter, crystal litter, bentonite litter, and other types have emerged. Cat litter is typically made from paper pulp granulated into small particles to simulate sand and provide water absorption. Some granules also contain physical desiccants such as silica gel. Chemical products such as antimicrobials, deodorants, and preservatives are often added. Summary of the Invention

[0003] In response to the above situation and to overcome the shortcomings of the prior art, the present invention aims to provide an environmentally friendly recycled cat litter and a method for preparing the same. The cat litter is primarily made from recycled sanitary materials, with the main ingredients being recycled sanitary material scraps and dust. This fully utilizes the recycled sanitary material dust, resulting in an environmentally friendly cat litter product.

[0004] The technical solution adopted by the present invention is as follows: The present invention provides an environmentally friendly recycled cat litter, including a cat litter base and a cat litter surface layer. The cat litter base is composed of cut and crushed sanitary material waste. The cat litter base is cylindrical with a diameter of 3 to 8 mm and a length of 3 to 10 mm. The cat litter base accounts for 40% to 88% of the total weight of the cat litter material. The cat litter surface layer is tightly wrapped around the cat litter base. The material of the cat litter surface layer is composed of dust mixed with starch collected and recycled from dust collectors in the sanitary products industry. The recycled dust accounts for 10 to 58% of the total weight of the cat litter material, and the starch accounts for 1 to 2% of the total weight of the cat litter material.

[0005] Furthermore, the materials used for the cat litter base and cat litter surface layer include the following components in parts by weight: 40 to 88 parts of sanitary material waste and 10 to 58 parts of dust.

[0006] Furthermore, the main materials in the sanitary material waste are plant fibers and water-absorbing polymer materials.

[0007] A method for preparing environmentally friendly recycled cat litter comprises the following steps:

[0008] Step 1: Screening the sanitary material scraps to remove the dirty sanitary material scraps;

[0009] Step 2: Add the screened sanitary material scraps into a special cutting machine for soft materials and cut them to obtain mixed scraps;

[0010] Step 3: The cut sanitary material scraps are transported by a conveyor belt and enter a crusher for a crushing process. The crushed sanitary material scraps become sanitary material scraps;

[0011] Step 4: The scraps of sanitary materials are transported from the crusher to the granulator for granulation to obtain cat litter matrix;

[0012] Step 5: The cat litter matrix is ​​conveyed into the rotary screen machine to screen out the unqualified cat litter matrix. During the screening process, the cat litter matrix particles squeeze each other to make the internal structure more compact, and the sanitary material scraps and broken materials are more firmly clustered.

[0013] Step 6: The unqualified cat litter matrix enters the crusher and granulator again for repeated granulation;

[0014] Step 7: The qualified cat litter matrix is ​​sent to the air cooler for air cooling and then enters the mixer;

[0015] Step 8: The cat litter base entering the mixer is sprayed with high-pressure atomized water and then mixed and rolled in the mixer; the humidified cat litter base is humidified to a humidity of 10-20% at a distance of 4 / 5 from the core of the cat litter;

[0016] Step 9: After the surface of the cat litter base is quenched and wetted, the cat litter base continues to roll, and the mixture of starch and recycled hygiene product dust adheres to the surface of the cat litter base during rolling, until the entire surface of the cat litter base is adhered to the mixture of starch and recycled hygiene product dust;

[0017] Step 10: The complete cat litter particles coated with starch and recycled hygiene product dust are transported by a conveyor belt into a rotary machine where high-intensity wind blows off the recycled hygiene product dust that is not firmly adhered to the surface of the particles;

[0018] Step 11: The dust-free whole cat litter particles are transported by a conveyor belt to a rotary screen machine, where they are screened into whole cat litter particles of different sizes. After screening, the whole cat litter particles of different sizes enter different channels and leave the rotary screen machine. The whole cat litter particles of different sizes will eventually be packaged in different sales specifications.

[0019] Step 12: The whole cat litter particles that have been screened by the rotary screen are transported by a conveyor belt to a dryer for drying. After drying, the whole cat litter particles are further compacted and compacted due to the evaporation of water, making them less likely to be damaged by external forces and produce dust.

[0020] Step 13: The dried cat litter particles are conveyed by a conveyor belt into a rotary screen machine for further screening to obtain finished cat litter;

[0021] Step 14: The finished cat litter is transported to the packaging process via a conveyor belt. During the transportation process, the finished cat litter is cooled by the wind turbine.

[0022] Furthermore, in step 5, the cat litter substrate with a diameter less than 3 mm and the cat litter substrate with a diameter greater than 8 mm are unqualified cat litter substrates.

[0023] Furthermore, the atomization pressure in step eight is 1.5-2.0 MPa, and the surface humidity of the cat litter matrix after humidification in step eight is 80-100%.

[0024] Furthermore, the outer surface hardness of the complete cat litter particles after drying in step 12 reaches 30 to 65N.

[0025] By adopting the above technical solution, the present invention has the following beneficial effects: providing an environmentally friendly recycled cat litter and a preparation method thereof, which is mainly made of recycled sanitary materials, with the main ingredients being recycled sanitary material scraps and dust as raw materials, fully utilizing the recycled sanitary material dust, and is an environmentally friendly cat litter product;

[0026] The problem of low hardness of cat litter is solved. At the same time, the cat litter of the present application is dust-free or has very little dust, which will not cause air pollution. It also has strong anti-penetration ability, has relatively good clumping and odor absorption functions, directly absorbs urine, can be directly discarded into the toilet and flushed, and does not require frequent cleaning. In addition, due to its high hardness, the cat litter of the present application is not easily crushed by cats. It has excellent water absorption effect, low odor, low loss rate, long service life, and is easy to use. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] The present invention discloses an environmentally friendly recycled cat litter comprising a cat litter base and a cat litter surface layer. The cat litter base is composed of chopped and pulverized sanitary waste material. The cat litter base is cylindrical with a diameter of 3 mm and a length of 3 mm. The cat litter base accounts for 40% of the total weight of the cat litter material. The cat litter surface layer tightly wraps around the cat litter base. The cat litter surface layer is composed of dust collected and recycled from dust collectors in the sanitary product industry and mixed with starch. The recycled dust accounts for 10% of the total weight of the cat litter material, and the starch accounts for 1% of the total weight of the cat litter material.

[0030] The materials used for the cat litter base and cat litter surface layer include the following components in parts by weight: 40 parts of sanitary material waste and 10 parts of dust.

[0031] The main materials in the sanitary material waste are plant fibers and water-absorbing polymer materials.

[0032] A method for preparing environmentally friendly recycled cat litter comprises the following steps:

[0033] Step 1: Screening the sanitary material scraps to remove the dirty sanitary material scraps;

[0034] Step 2: Add the screened sanitary material scraps into a special cutting machine for soft materials and cut them to obtain mixed scraps;

[0035] Step 3: The cut sanitary material scraps are transported by a conveyor belt and enter a crusher for a crushing process. The crushed sanitary material scraps become sanitary material scraps;

[0036] Step 4: The scraps of sanitary materials are transported from the crusher to the granulator for granulation to obtain cat litter matrix;

[0037] Step 5: The cat litter matrix is ​​conveyed into the rotary screen machine to screen out the unqualified cat litter matrix. During the screening process, the cat litter matrix particles squeeze each other to make the internal structure more compact, and the sanitary material scraps and broken materials are more firmly clustered.

[0038] Step 6: The unqualified cat litter matrix enters the crusher and granulator again for repeated granulation;

[0039] Step 7: The qualified cat litter matrix is ​​sent to the air cooler for air cooling and then enters the mixer;

[0040] Step 8: The cat litter base entering the mixer is sprayed with high-pressure atomized water and then mixed and rolled in the mixer; the humidified cat litter base is humidified to 10% at a position 4 / 5 from the core of the cat litter;

[0041] Step 9: After the surface of the cat litter base is quenched and wetted, the cat litter base continues to roll, and the mixture of starch and recycled hygiene product dust adheres to the surface of the cat litter base during rolling, until the entire surface of the cat litter base is adhered to the mixture of starch and recycled hygiene product dust;

[0042] Step 10: The complete cat litter particles coated with starch and recycled hygiene product dust are transported by a conveyor belt into a rotary machine where high-intensity wind blows off the recycled hygiene product dust that is not firmly adhered to the surface of the particles;

[0043] Step 11: The dust-free whole cat litter particles are transported by a conveyor belt to a rotary screen machine, where they are screened into whole cat litter particles of different sizes. After screening, the whole cat litter particles of different sizes enter different channels and leave the rotary screen machine. The whole cat litter particles of different sizes will eventually be packaged in different sales specifications.

[0044] Step 12: The whole cat litter particles that have been screened by the rotary screen are transported by a conveyor belt to a dryer for drying. After drying, the whole cat litter particles are further compacted and compacted due to the evaporation of water, making them less likely to be damaged by external forces and produce dust.

[0045] Step 13: The dried cat litter particles are conveyed by a conveyor belt into a rotary screen machine for further screening to obtain finished cat litter;

[0046] Step 14: The finished cat litter is transported to the packaging process via a conveyor belt. During the transportation process, the finished cat litter is cooled by the wind turbine.

[0047] The cat litter substrate with a diameter less than 3 mm and the cat litter substrate with a diameter greater than 8 mm in the step 5 are unqualified cat litter substrates.

[0048] The atomization pressure in step eight is 1.5 MPa, and the surface humidity of the cat litter matrix after humidification in step eight is 80%.

[0049] The outer surface hardness of the complete cat litter particles after drying in step 12 reaches 30N.

[0050] Example 2:

[0051] The present invention discloses an environmentally friendly recycled cat litter comprising a litter base and a litter surface layer. The litter base is composed of chopped and pulverized sanitary waste material. The litter base is cylindrical with a diameter of 5.5 mm and a length of 6.5 mm, and the litter base accounts for 64% of the total weight of the litter. The litter surface layer tightly wraps around the litter base. The litter surface layer is composed of dust collected and recycled from dust collectors in the sanitary product industry and mixed with starch. The recycled dust accounts for 34% of the total weight of the litter, and the starch accounts for 1.5% of the total weight of the litter.

[0052] The materials used for the cat litter base and cat litter surface layer include the following components in parts by weight: 64 parts of sanitary material waste and 34 parts of dust.

[0053] The main materials in the sanitary material waste are plant fibers and water-absorbing polymer materials.

[0054] A method for preparing environmentally friendly recycled cat litter comprises the following steps:

[0055] Step 1: Screening the sanitary material scraps to remove the dirty sanitary material scraps;

[0056] Step 2: Add the screened sanitary material scraps into a special cutting machine for soft materials and cut them to obtain mixed scraps;

[0057] Step 3: The cut sanitary material scraps are transported by a conveyor belt and enter a crusher for a crushing process. The crushed sanitary material scraps become sanitary material scraps;

[0058] Step 4: The scraps of sanitary materials are transported from the crusher to the granulator for granulation to obtain cat litter matrix;

[0059] Step 5: The cat litter matrix is ​​conveyed into the rotary screen machine to screen out the unqualified cat litter matrix. During the screening process, the cat litter matrix particles squeeze each other to make the internal structure more compact, and the sanitary material scraps and broken materials are more firmly clustered.

[0060] Step 6: The unqualified cat litter matrix enters the crusher and granulator again for repeated granulation;

[0061] Step 7: The qualified cat litter matrix is ​​sent to the air cooler for air cooling and then enters the mixer;

[0062] Step 8: The cat litter base entering the mixer is sprayed with high-pressure atomized water and then mixed and rolled in the mixer; the humidified cat litter base is humidified to 15% at a distance of 4 / 5 from the core of the cat litter;

[0063] Step 9: After the surface of the cat litter base is quenched and wetted, the cat litter base continues to roll, and the mixture of starch and recycled hygiene product dust adheres to the surface of the cat litter base during rolling, until the entire surface of the cat litter base is adhered to the mixture of starch and recycled hygiene product dust;

[0064] Step 10: The complete cat litter particles coated with starch and recycled hygiene product dust are transported by a conveyor belt into a rotary machine where high-intensity wind blows off the recycled hygiene product dust that is not firmly adhered to the surface of the particles;

[0065] Step 11: The dust-free whole cat litter particles are transported by a conveyor belt to a rotary screen machine, where they are screened into whole cat litter particles of different sizes. After screening, the whole cat litter particles of different sizes enter different channels and leave the rotary screen machine. The whole cat litter particles of different sizes will eventually be packaged in different sales specifications.

[0066] Step 12: The whole cat litter particles that have been screened by the rotary screen are transported by a conveyor belt to a dryer for drying. After drying, the whole cat litter particles are further compacted and compacted due to the evaporation of water, making them less likely to be damaged by external forces and produce dust.

[0067] Step 13: The dried cat litter particles are conveyed by a conveyor belt into a rotary screen machine for further screening to obtain finished cat litter;

[0068] Step 14: The finished cat litter is transported to the packaging process via a conveyor belt. During the transportation process, the finished cat litter is cooled by the wind turbine.

[0069] The cat litter substrate with a diameter less than 3 mm and the cat litter substrate with a diameter greater than 8 mm in the step 5 are unqualified cat litter substrates.

[0070] The atomization pressure in step eight is 1.75 MPa, and the surface humidity of the cat litter matrix after humidification in step eight is 90%.

[0071] The outer surface hardness of the complete cat litter particles after drying in step 12 reaches 47.5N.

[0072] Example 3:

[0073] The present invention discloses an environmentally friendly recycled cat litter comprising a litter base and a litter surface layer. The litter base is composed of chopped and pulverized sanitary waste material. The litter base is cylindrical with a diameter of 8 mm and a length of 10 mm, and the litter base accounts for 88% of the total weight of the litter. The litter surface layer tightly wraps around the litter base. The litter surface layer is composed of dust collected and recycled from dust collectors in the sanitary product industry and mixed with starch. The recycled dust accounts for 58% of the total weight of the litter, and the starch accounts for 2% of the total weight of the litter.

[0074] The materials used for the cat litter base and cat litter surface layer include the following components in parts by weight: 88 parts of sanitary material waste and 58 parts of dust.

[0075] The main materials in the sanitary material waste are plant fibers and water-absorbing polymer materials.

[0076] A method for preparing environmentally friendly recycled cat litter comprises the following steps:

[0077] Step 1: Screening the sanitary material scraps to remove the dirty sanitary material scraps;

[0078] Step 2: Add the screened sanitary material scraps into a special cutting machine for soft materials and cut them to obtain mixed scraps;

[0079] Step 3: The cut sanitary material scraps are transported by a conveyor belt and enter a crusher for a crushing process. The crushed sanitary material scraps become sanitary material scraps;

[0080] Step 4: The scraps of sanitary materials are transported from the crusher to the granulator for granulation to obtain cat litter matrix;

[0081] Step 5: The cat litter matrix is ​​conveyed into the rotary screen machine to screen out the unqualified cat litter matrix. During the screening process, the cat litter matrix particles squeeze each other to make the internal structure more compact, and the sanitary material scraps and broken materials are more firmly clustered.

[0082] Step 6: The unqualified cat litter matrix enters the crusher and granulator again for repeated granulation;

[0083] Step 7: The qualified cat litter matrix is ​​sent to the air cooler for air cooling and then enters the mixer;

[0084] Step 8: The cat litter base entering the mixer is sprayed with high-pressure atomized water and then mixed and rolled in the mixer; the humidified cat litter base is humidified to 20% at a distance of 4 / 5 from the core of the cat litter;

[0085] Step 9: After the surface of the cat litter base is quenched and wetted, the cat litter base continues to roll, and the mixture of starch and recycled hygiene product dust adheres to the surface of the cat litter base during rolling, until the entire surface of the cat litter base is adhered to the mixture of starch and recycled hygiene product dust;

[0086] Step 10: The complete cat litter particles coated with starch and recycled hygiene product dust are transported by a conveyor belt into a rotary machine where high-intensity wind blows off the recycled hygiene product dust that is not firmly adhered to the surface of the particles;

[0087] Step 11: The dust-free whole cat litter particles are transported by a conveyor belt to a rotary screen machine, where they are screened into whole cat litter particles of different sizes. After screening, the whole cat litter particles of different sizes enter different channels and leave the rotary screen machine. The whole cat litter particles of different sizes will eventually be packaged in different sales specifications.

[0088] Step 12: The whole cat litter particles that have been screened by the rotary screen are transported by a conveyor belt to a dryer for drying. After drying, the whole cat litter particles are further compacted and compacted due to the evaporation of water, making them less likely to be damaged by external forces and produce dust.

[0089] Step 13: The dried cat litter particles are conveyed by a conveyor belt into a rotary screen machine for further screening to obtain finished cat litter;

[0090] Step 14: The finished cat litter is transported to the packaging process via a conveyor belt. During the transportation process, the finished cat litter is cooled by the wind turbine.

[0091] The cat litter substrate with a diameter less than 3 mm and the cat litter substrate with a diameter greater than 8 mm in the step 5 are unqualified cat litter substrates.

[0092] The atomization pressure in step eight is 2.0 MPa, and the surface humidity of the cat litter matrix after humidification in step eight is 100%.

[0093] The outer surface hardness of the complete cat litter particles after drying in step 12 reaches 65N.

[0094] It should be noted that, in this document, relational terms such as first and second, etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0095] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0096] The above description of the present invention and its embodiments is non-limiting, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this description and, without departing from the inventive spirit of the present invention, designs structures and embodiments similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly recycled cat litter, characterized in that: The cat litter comprises a cat litter base and a cat litter surface layer, wherein the cat litter base is composed of cut and crushed sanitary material waste, the cat litter base is cylindrical with a diameter of 3 to 8 mm and a length of 3 to 10 mm, and the cat litter base accounts for 40% to 88% of the total weight of the cat litter material; the cat litter surface layer tightly wraps the cat litter base, and the material of the cat litter surface layer is composed of dust mixed with starch collected and recycled by a dust collector in the sanitary products industry, the recycled dust accounts for 10 to 58% of the total weight of the cat litter material, and the starch accounts for 1 to 2% of the total weight of the cat litter material.

2. The environmentally friendly recycled cat litter according to claim 1, characterized in that: The materials used for the cat litter base and the cat litter surface layer include the following components by weight: 40 to 88 parts of sanitary material waste and 10 to 58 parts of dust.

3. The environmentally friendly recycled cat litter according to claim 2, characterized in that: The main materials in the sanitary material waste are plant fibers and water-absorbing polymer materials.

4. A method for preparing the environmentally friendly recycled cat litter according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: Screening the sanitary material scraps to remove the dirty sanitary material scraps; Step 2: Add the screened sanitary material scraps into a special cutting machine for soft materials and cut them to obtain mixed cut materials; Step 3: The cut sanitary material scraps are transported by a conveyor belt and enter a pulverizer for a pulverization process, and the pulverized sanitary material scraps become sanitary material scraps; Step 4: The scraps of sanitary materials are transported from the crusher to a granulator for granulation to obtain a cat litter matrix; Step 5: The cat litter matrix is ​​conveyed into the rotary screen to screen and remove the cat litter matrix with unqualified granulation shape. During the screening process, the cat litter matrix particles are squeezed against each other to make the internal structure more compact, and the scraps of sanitary materials are more firmly agglomerated; Step 6: The unqualified cat litter matrix enters the crusher and granulator again for repeated granulation; Step 7: The qualified cat litter matrix is ​​sent to the air cooler for wind cooling and then enters the mixer; Step 8: The cat litter base entering the mixer is sprayed with high-pressure atomized water and then mixed and rolled in the mixer; the humidified cat litter base is 4 / 5 away from the cat litter core, and the humidification humidity is 10-20%; Step 9: After the surface of the cat litter base is quenched and wetted, the cat litter base continues to roll, and the mixture of starch and recycled hygienic product dust is adhered to the surface of the cat litter base while rolling, until the surface of the cat litter base is completely adhered to the mixture of starch and recycled hygienic product dust; Step 10: The complete cat litter particles that are adhered and wrapped with starch and recycled hygiene product dust are transported by a conveyor belt into a turntable machine, where high-strength wind blows off the recycled hygiene product dust that is not firmly adhered to the surface of the particles; Step 11: The complete cat litter particles that have been dusted are transported by a conveyor belt into a rotary screen machine, and the rotary screen machine screens out complete cat litter particles of different sizes. After screening, the complete cat litter particles of different sizes enter different channels and leave the rotary screen machine. The complete cat litter particles of different sizes will eventually enter different sales specifications of packaging; Step 12: The complete cat litter particles screened by the rotary screen are transported to the dryer by a conveyor belt for drying. After drying, the complete cat litter particles are affected by the evaporation of their water, and the internal materials are further compacted and agglomerated, and are not easily damaged by external forces to produce dust; Step 13: The dried complete cat litter particles are transported by a conveyor belt into a rotary screen machine for further screening to obtain finished cat litter; Step 14: The finished cat litter is transported to the packaging process via a conveyor belt. During the transportation process, the finished cat litter is cooled by wind from a wind turbine.

5. The method for preparing an environmentally friendly recycled cat litter according to claim 4, characterized in that: In the step 5, the cat litter substrate with a diameter less than 3 mm and the cat litter substrate with a diameter greater than 8 mm are unqualified cat litter substrates.

6. The method for preparing an environmentally friendly recycled cat litter according to claim 4, characterized in that: The atomization pressure in step eight is 1.5-2.0 MPa, and the surface humidity of the cat litter matrix after humidification in step eight is 80-100%.

7. The method for preparing an environmentally friendly recycled cat litter according to claim 4, characterized in that: The outer surface hardness of the complete cat litter particles after drying in step 12 reaches 30-65N.