Method and apparatus for maintaining cleanliness and preventing adhesion in gravity chutes using a release agent

Abstract

The present invention relates to a novel method for maintaining the cleanliness and preventing adhesion within gravity chutes, particularly those with polished stainless steel inner linings, ensuring a hygienic and environmentally safe environment. This invention employs Polyvinyl Alcohol (PVA), a water-soluble polymer, as a release agent to prevent sticking of materials to the chute's inner lining. After the completion of a wash cycle, the PVA solution is introduced directly into the waterline beneath the main water valve via an access door at the chute's apex. This process, performed on a periodic basis based on gravity chute conditions, ensures a non-sticky surface, mitigating the accumulation of germs and food residues. By incorporating PVA into the maintenance regimen, this invention significantly enhances the functionality and cleanliness of gravity chutes, meeting stringent hygiene standards and promoting environmental safety.

Description

Method and Apparatus for Maintaining Cleanliness and Preventing Adhesion in Gravity Chutes Using a Release AgentBackground of the Present Invention

[0001] Gravity chutes, often utilized in various industries for the controlled transfer of materials and products, are integral components of many manufacturing and processing systems. These chutes are constructed with a variety of materials, including polished stainless steel, to facilitate the smooth and efficient flow of materials from a higher elevation to a lower one, driven by gravity alone.

[0002] Maintaining the cleanliness and functionality of gravity chutes, particularly those with polished stainless steel inner linings, poses a significant challenge in various industries such as food processing, pharmaceuticals, and manufacturing. Over time, these chutes can become susceptible to adhesion, resulting in the accumulation of contaminants, including food particles, microbes, and other debris. This adhesion not only compromises the efficiency of material transfer but also creates an environment conducive to the growth of harmful germs and the accumulation of food residues, potentially leading to sanitation concerns and regulatory non- compliance.

[0003] Traditional cleaning methods often involve the use of harsh chemicals, which may introduce environmental and safety hazards. Additionally, these methods may not provide a long-lasting solution to prevent adhesion and ensure a consistently clean chute surface.Field of the Present Invention

[0004] The present invention pertains to the field of materials handling and sanitation, particularly within the context of gravity chutes used in various industries. More specifically, this invention addresses the need for an effective and environmentally safe solution to prevent adhesion on the inner linings of gravity chutes, particularly those constructed with polished stainless steel.

[0005] By introducing Polyvinyl Alcohol (PVA), a water-soluble polymer with excellent release properties, into the chute maintenance process, this invention seeks to provide an innovative method and apparatus for maintaining the cleanliness and preventing adhesion within gravity chutes. The utilization of PVA as a release agent, added directly into the waterline following the wash cycle, ensures a non-sticky surface, reducing the buildup of contaminants and promoting a sanitary and eco-friendly chute environment.

[0006] This invention aims to enhance the functionality, efficiency, and compliance of gravity chutes, offering a novel solution for industries where cleanliness, hygiene, and material flow control are paramount concerns.Brief Description of Drawings

[0007] Figure 1 shows additive container adding agent to tank with motor

[0008] Figure 2 shows gravity chute wash hardware connected to cleaning equipment

[0009] Figure 3 shows a floor module controller controlling a water solenoid valve and sprayer.Detailed Description of Drawings

[0010] Figure 1 shows a bottle of concentrate adhesion tension relieving agent (11) being poured into a dispersal tank (20) which acts as a slurry holding tank which is pumped out into a main waterline (not shown) by a positive displacement metering pump (17).

[0011] Figure 2 shows a dispersal tank (20) connected to a positive displacement metering pump (17) which is controlled by an electronic wash controller (25A) which turns power on to control connection (17A) to said positive displacement metering pump (17) which flows the Polyvinyl Alcohol (PVA) solution to a nipple intake (45) on a manifold (42) mixing with the water flow out (51B). The electronic Wash controller (25A) controls the water intake (51A) via solenoid valve (33) by turning on power to the solenoid coil (31) where water begins to flow through said solenoid valve (33) to a flow meter (48) which measures the flow output sending flow sensor data feedback (48A) to the wash controller (25) which in turn controls the water flow (51A) with the metered adhesion tension relieving agent (11 Figure 1) residing in the slurry tank (20) creating a controlled dispensary of proper solution concentrations optimized for particle and germ adhesion prevention coatings.

[0012] Figure 3 is a floor module control board (25B) which receives sufficient data signals (27B) from the wash controller (25A Figure 2) which signals the floor controller (25B) to turn on the solenoid coil (31) allowing the mixture of water and surface adhesion relieving agents (11 Figure 1) to flow through the solenoid (33) via the water intake port (51C) which flows through the nozzle (65) under high pressure through the sprayer (65) thus controlling the coating of the inside lining of the gravity chute to prevent the surface to build up germs and waste on the stainless steel inner surfaces.Methods of Preferred Embodiments

[0013] The following detailed description presents several preferred embodiments and methods for implementing the innovative approach of using Polyvinyl Alcohol (PVA) as a release agent to maintain cleanliness and prevent adhesion in gravity chutes, particularly those equipped with polished stainless steel inner linings. It should be noted that these embodiments are provided by way of example and not as limitations of the invention.

[0014] Embodiment 1: Gravity Chute Cleaning System

[0015] Chute Inspection and Preparation:

[0016] Prior to the initiation of the maintenance process, the gravity chute is inspected for any visible debris, contaminants, or residues. Any loose or adhered materials are removed manually.

[0017] Wash Cycle Initiation:

[0018] The automated wash system for gravity chutes is initiated according to the predetermined schedule or as needed. The wash cycle includes stages such as presoak with surfactant, disinfectant application, rinse cycles, and a final clean rinse.

[0019] Final Clean Rinse with PVA:

[0020] In the final stage of the wash cycle, a PVA solution is prepared by diluting PVA with water to the desired concentration. The PVA solution is introduced into the waterline below the main water valve via an access door located at the top of the gravity chute.

[0021] Uniform Coating and Disinfection:

[0022] The PVA solution is distributed evenly throughout the chute, ensuring uniform coating of the polished stainless steel inner lining. Simultaneously, the PVA solution acts as a disinfectant, enhancing microbial control.

[0023] Drainage and Drying:

[0024] After the PVA solution has been evenly applied, the chute is allowed to drain, removing any excess solution. The chute is then dried using controlled airflow to achieve the desired level of dryness.

[0025] Regular Maintenance Schedule:

[0026] The PVA release agent application process is performed on a quad-annual basis or as determined by operational needs. This ensures a consistent non-stick surface, preventing adhesion, germ buildup, and food residue accumulation.

[0027] Embodiment 2: Release Agent Concentration Control

[0028] PVA Concentration Determination:

[0029] The concentration of the PVA solution used in the final clean rinse is determined based on factors such as chute dimensions, material flow characteristics, and operational requirements. The optimal concentration is calculated to achieve effective release properties.

[0030] Adjustable Dosage Mechanism:

[0031] The system is equipped with an adjustable dosage mechanism that allows for precise control over the amount of PVA solution introduced into the waterline. This mechanism ensures the consistent application of the PVA release agent.

[0032] Embodiment 3: Environmental and Regulatory Compliance

[0033] PVA Selection and Compliance:

[0034] The PVA used in the release agent formulation complies with regulatory standards and environmental regulations, ensuring safety and eco-friendliness.

[0035] Waste Management:

[0036] Procedures for the safe disposal of residual PVA solution are established in accordance with applicable environmental regulations.

[0037] These embodiments illustrate the application of Polyvinyl Alcohol (PVA) as a release agent in gravity chute maintenance, with a focus on promoting cleanliness, preventing adhesion, and ensuring regulatory compliance. The methods described herein provide a comprehensive approach to chute maintenance while emphasizing environmental responsibility and operational efficiency.Summary

[0038] The present invention introduces an innovative approach to maintain cleanliness and prevent adhesion within gravity chutes, specifically those featuring polished stainless steel inner linings. The invention employs Polyvinyl Alcohol (PVA), a water-soluble polymer renowned for its release properties, as a key component in an automated chute maintenance system.

[0039] The method involves a systematic process, including chute inspection, automated wash cycles, and a final clean rinse with a PVA solution. This carefully crafted procedure ensures uniform coating of the chute's inner lining, creating a non-stick barrier that prevents the buildup of contaminants, germs, and food residues.

[0040] One embodiment emphasizes precise control over the PVA concentration, ensuring optimal release properties tailored to specific chute dimensions and operationalrequirements. Additionally, the invention maintains compliance with regulatory standards and environmental regulations, utilizing PVA formulations that prioritize safety and eco-friendliness.

[0041] By incorporating PVA as a release agent, this invention not only enhances the functionality and efficiency of gravity chutes but also promotes a hygienic and environmentally safe environment. It provides a sustainable and effective solution for industries where cleanliness, hygiene, and material flow control are of utmost importance, ultimately setting a new standard in chute maintenance and operation.

Claims

We Claim:Claim 1. A gravity chute maintenance system comprising: a gravity chute having a polished stainless steel inner lining; an automated wash system configured to perform cleaning stages, including presoak with surfactant, disinfectant application, rinse cycles, and a final clean rinse; a PVA solution, wherein said PVA solution is introduced directly into a waterline below a main water valve, following completion of said final clean rinse stage; wherein said PVA solution forms a non-stick barrier on said polished stainless steel inner lining, preventing adhesion and promoting cleanliness within said gravity chute.Claim 2. The gravity chute maintenance system of claim 1, further comprising: an adjustable dosage mechanism configured to control the concentration of said PVA solution, said concentration determined based on chute dimensions, material flow characteristics, and operational requirements.Claim 3. The gravity chute maintenance system of claim 1 or 2, wherein said PVA used in said PVA solution complies with regulatory standards and environmental regulations, ensuring safety and eco-friendliness.Claim 4. The gravity chute maintenance system of any preceding claim, further comprising: a chute inspection and preparation step, wherein said chute is inspected for visible debris, contaminants, or residues before the initiation of said automated wash system.Claim 5. The gravity chute maintenance system of any preceding claim, wherein said PVA solution application process is performed on a quad-annual basis or as determined by operational needs, maintaining a consistent non-stick surface, preventing adhesion, germ buildup, and food residue accumulation.Claim 6. The gravity chute maintenance system of any preceding claim, further comprising:a drying step, wherein said chute is dried using controlled airflow after the introduction of said PVA solution, achieving the desired level of dryness.Claim 7. The gravity chute maintenance system of any preceding claim, wherein procedures for the safe disposal of residual PVA solution are established in accordance with applicable environmental regulations.

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