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Rat Hole Prevention Product List

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0059 Bridge for polymer coagulants, rat hole measures

0059 Bridge for polymer coagulants, rat hole measures

This is an introduction to the implementation case of the bridge breaker "Brodisk."

This is an introduction to the case studies of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powdery material to degas due to impact or vibration, which can lead to increased blockage. Additionally, it does not damage the tank. If you are having issues with powdery materials, please consult with us. 【Key Points of Our Equipment】 ■ The elastic disk (silicone) is very important in terms of strength and durability, especially considering the risk of foreign material contamination. Our silicone disk is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is crucial! We provide guidance on what should be done. We also have a dedicated controller available. We have published numerous case studies on our website. You can check them out via the link below.

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0058 Measures for Sodium Bicarbonate Bridge and Rat Hole in Incineration Equipment

0058 Measures for Sodium Bicarbonate Bridge and Rat Hole in Incineration Equipment

This is an introduction to the case study of the bridge breaker "Brodisk."

This is an introduction to the implementation case of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powder particles to degas due to impact or vibration, which prevents blockages from becoming severe. Additionally, it does not damage the tank. If you are having issues with powder particles, please consult us. 【Key Points of Our Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign matter contamination, as strength and durability are crucial. The silicone disk of our equipment excels in strength and durability. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. We have published numerous implementation examples on our website. You can check them out through the link below.

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0047 Rice bran - Bridge and rat hole measures

0047 Rice bran - Bridge and rat hole measures

Introducing case studies of the bridge breaker "Brodisk."

This is an introduction to the implementation case of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powder particles to degas due to impacts or vibrations, which prevents blockages from becoming severe. Additionally, it does not damage the tank. If you are having issues with powder particles, please consult us. 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign matter contamination, as strength and durability are crucial. The silicone disk of this equipment is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. We have many implementation examples posted on our website. You can check them out via the link below.

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0046 Measures for Bridge Rat Holes in Wheat Flour

0046 Measures for Bridge Rat Holes in Wheat Flour

This is an introduction to the implementation case of the bridge breaker "Brodisk."

This is an introduction to the case studies of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powdery material to degas due to impact or vibration, which prevents clogging. It also does not damage the tank. If you are having trouble with powdery materials, please consult us. 【Key Points of Our Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign material contamination, as well as strength and durability. The silicone disk of our equipment is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is crucial! We provide guidance on what should be done. We also have a dedicated controller available. We have many case studies published on our website. You can check them out through the link below.

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0023 Talc Bridge Rat Hole Measures

0023 Talc Bridge Rat Hole Measures

This is an introduction to the case study of the bridge breaker "Brodisk."

This is an introduction to the implementation case of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powdery material to degas due to impact or vibration, which prevents clogging. It also does not damage the tank. If you are struggling with powdery materials, please leave it to us. 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign matter contamination, as strength and durability are crucial. The silicone disk of this equipment is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. We have many implementation examples posted on our website. You can check them from the link below.

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0123 Powdered UV Absorber Rat Hole Measures

0123 Powdered UV Absorber Rat Hole Measures

Solve raw material discharge issues easily and at low cost!

We would like to introduce a case study on measures against rat hole phenomena in powder ultraviolet absorbers. It seems that there were occasional issues with the discharge of raw materials due to rat hole phenomena in the hopper of the powder ultraviolet absorber. In this case, the user was addressing the issue by tapping with a stick or similar methods, but by installing a blow disk with vibrator and aeration functions, the problem was resolved easily and at a low cost. Since the blow disk is low-cost, it is feasible to install multiple units without significant expenses. **Key Points of This Equipment** - The elastic disk (silicone) is very important in terms of the risk of foreign material contamination, as strength and durability are crucial. Our silicone disk is exceptionally strong and durable. Once you use it, you will understand! - Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. *For more details, please refer to the PDF materials or feel free to contact us.* *Our website features numerous implementation examples, which you can check via the link below.*

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0346 Measures against rat holes in the pigment supply hopper

0346 Measures against rat holes in the pigment supply hopper

Economic equipment! Solve problems at a minimal cost! Introducing case studies of Brodisk.

This is a case where we received a consultation from the person in charge at a PVC pipe manufacturing factory, stating that after changing the type of pigment, a rat-hole phenomenon began to occur in the small hopper of the pigment supply device. Based on the conditions we discussed, we informed them that there were no significant risks and proposed a model and layout. They implemented our suggestions immediately, and there have been no further troubles since then. The color abnormalities and color variations in the products that occurred during the initial troubles have not reappeared. 【Case Study】 ■ Before Implementation - Rat-hole phenomenon occurred in the small hopper of the pigment supply device. ■ After Implementation - No troubles have occurred at all. - No color abnormalities or variations in the products have occurred. *For more details, please refer to the PDF document or feel free to contact us. *Our website features numerous case studies. You can check them out via the link below.

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0432 Measures against rat holes in waste gypsum powder

0432 Measures against rat holes in waste gypsum powder

Introducing a case where "BD-20," which has a high air volume, was adopted to address issues with the waste gypsum powder silo!

We received a consultation from a contractor responsible for the modification work of this equipment, stating that despite the installation of a general air aerator to prevent bridging and rat-holing in the gypsum waste powder silo, troubles continue due to weather and other factors. The aeration already in place uses a large total amount of air, and for the blow disk, they preferred the "BD-20," which has a higher air volume than the "BD-15." As a result, they adopted the "BD-20," and the outcome has been favorable. 【Overview】 ■ Target Silo - Conical shape (eccentric), with a vertical conveying screw conveyor inside ■ Blow Disk Arrangement - Four blow disks installed in two tiers (total of eight) * For more details, please refer to the PDF materials or feel free to contact us. * Our website features numerous case studies. You can check them from the link below.

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0496 Relatively heavy powder rat hole measures

0496 Relatively heavy powder rat hole measures

The results are very good! We can provide consultations on various materials, so please feel free to contact us.

As a countermeasure for the "rat hole" that occurs in the raw material hopper of air transport equipment, we would like to introduce a case where our device was used. In this case, the user requested a test at the same time as the inquiry, so we prepared and sent (loaned) the necessary quantity of blow discs. The user quickly conducted the test evaluation, and the results were very favorable, leading to their adoption of the device. 【Case Overview】 ■ Hopper: Approximately 800×800, 3-sided incline ■ Target Material - Name: Unknown - Average Particle Diameter: Approximately 100μm (Microtrack) - Bulk Density: Loose 1.6, Dense 2.4 (Powder Tester) - Angle of Repose: 50° (Powder Tester) 【Key Points of Our Device】 ■ The elastic disc (silicone) is very important in terms of foreign matter contamination risk, as strength and durability are crucial. The silicone disc of our device excels in strength and durability. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. *For more details, please refer to the PDF materials or feel free to contact us.

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0527 Rat hole measures in the upper hopper of the quantitative supply device.

0527 Rat hole measures in the upper hopper of the quantitative supply device.

The subject is a very poorly flowing fine powder! This is an example of a substance with properties similar to titanium dioxide.

The user reported, "The fluidity is terrible, so we adopted a feeder with a mixer for the quantitative feeder part, but we are having trouble with rat holes occurring in the large hopper connected above it." The target material is a very poorly flowing fine powder, and while the substance name is undisclosed, upon reviewing the sample, it seemed to have properties similar to titanium dioxide. After reviewing the hopper diagram, the sample of the target material, and photos of the rat hole situation, we provided guidance on the arrangement and control of the blow disk, and it was adopted. I heard that the rat holes were resolved immediately after the installation of the equipment. [Overview of the hopper where the blow disk was installed this time] ■ Diameter: φ1000 ■ Bottom dimensions: approximately 500×500 ■ Height: approximately 700 *For more details, please refer to the PDF document or feel free to contact us.

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0542 Rat hole measures for silica fume

0542 Rat hole measures for silica fume

After discussing the model and layout, the results of the implementation have been as good as expected!

In the case of the customer who contacted us this time, a scraper was installed near the discharge area as a measure to improve the discharge issues from a silo containing adhesive materials. However, although no bridging occurs in that area, a rat hole develops above the scraper, which led the customer to contact us. After discussing the model and layout, the results of the implementation were as expected and satisfactory. 【Product Specifications】 ■ Brody Disk: BD-15S-B, 12 units ■ Controller: C-SV6, 1 unit 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign material contamination, as strength and durability are crucial. The silicone disk of this equipment excels in strength and durability. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. A dedicated controller is also available. *For more details, please refer to the PDF document or feel free to contact us.

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0036 Plastic product crushed materials Bridge and rat hole measures

0036 Plastic product crushed materials Bridge and rat hole measures

This is an introduction to the implementation case of the bridge breaker "Brodisk."

This is an introduction to the case studies of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powdery material to degas due to impact or vibration, which prevents blockages from becoming severe. Additionally, it does not damage the tank. If you are having issues with powdery materials, please consult us. 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign material contamination, as well as strength and durability. The silicone disk of this equipment is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is crucial! We provide guidance on what should be done. We also have a dedicated controller available. We have published numerous case studies on our website. You can check them out via the link below.

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0031 Plastic, antimony trioxide, and other rat hole measures

0031 Plastic, antimony trioxide, and other rat hole measures

This is an introduction to the case study of the bridge breaker "Brodisk."

This is an introduction to the implementation case of the bridge breaker "Brodisk." Unlike other bridge breakers, it does not cause the powdery material to degas due to impact or vibration, which prevents clogging. Additionally, it does not damage the tank. If you are struggling with powdery materials, please consult us. 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of the risk of foreign matter contamination, as strength and durability are crucial. The silicone disk of this equipment is exceptionally strong and durable. Once you use it, you will understand! ■ Control (how to aerate?) is important! We provide guidance on what should be done. We also have a dedicated controller available. We have published numerous implementation examples on our website. You can check them out via the link below.

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0229 Myka's rat hole measures

0229 Myka's rat hole measures

Easily solve powder bridges that cannot be resolved with knockers or vibrators!

The equipment was adopted for measures against rat holes in mica, which is believed to be due to the insufficient slope angle of the hopper. The slope of the hopper is quite gentle, and except for directly above the hopper discharge section, the powder is completely accumulated. Therefore, considering the size of the hopper, the number of installed blow disks has been increased to 8, which is more than the typical case. 【Hopper Conditions】 ■ Shape: Conical ■ Diameter: 1300φ ■ Discharge Diameter: 150φ ■ Taper Angle: 100° (slope 40°) 【Powder Conditions】 ■ Type: Mica ■ Bulk Density: Approximately 0.6 ■ Particle Size: Generally below 80μm ■ Angle of Repose: Approximately 55° Blow disks are easy to install and inexpensive, and even with a large number of installations, the effort and cost are limited. *For more details, please refer to the catalog or feel free to contact us. *Our website features numerous examples of implementations, which can be checked via the link below.

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0279 Measures against rat holes for elastomer micropowder

0279 Measures against rat holes for elastomer micropowder

Loaning is also possible! Introducing examples of Brodisks adopted for rat hole measures.

We received an inquiry from a device manufacturer. The elastomer powder was discharged from the hopper without any issues during testing, but we were consulted because a rat hole occurred during actual operation. It seemed that this customer had a good understanding of our equipment through our website and other resources. However, they expressed concerns based on their experience, so we lent them the necessary quantity of Brodie Disk Mini and conducted a test after discussing the details of the installation position. The results were favorable, and they proceeded to purchase the equipment. 【Overview】 ■ Diameter: 500φ ■ Discharge diameter: 80φ ■ Hopper incline: approximately 45° * For more details, please refer to the PDF materials or feel free to contact us. * Our website features numerous case studies, which can be accessed via the link below.

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0300 Aluminum hydroxide rat hole countermeasures

0300 Aluminum hydroxide rat hole countermeasures

Introducing a case of the Brodisk adopted by the engineering department of a chemical company.

This is a project from the engineering department of a chemical company. They are loading products from a bulk bag into a hopper, but the discharge from the hopper is unstable... It has become a rat hole, and they have tried using air knockers and vibrators, but with no effect... They mentioned that they usually tap it down with a bar. We proposed a solution using a controller with four solenoid valves, sequentially turning on the air to two blow discs at four locations. They decided to implement the "blow discs," and the results were as expected, very good. [Overview] ■ Material: Aluminum hydroxide powder ■ Hopper diameter: 1300φ ■ Discharge diameter: 150A * For more details, please refer to the PDF document or feel free to contact us. * Our website features numerous case studies. You can check them out via the link below.

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0128 Measures for Rat Hole in Coal Powder Hopper

0128 Measures for Rat Hole in Coal Powder Hopper

Low cost even for multiple installations! Effectively eliminate rat holes with 'Brodisk'.

In addition to the blaster equipment equipped with an air tank, a number of standard air injection ports were installed, but it was difficult to resolve the rat holes caused by coal dust. As a countermeasure, the bridge breaker "Brodisk" was selected. A total of 48 units were installed. Due to the low cost, expenses can be kept down even with a large number of installations. Brodisk is used in various cases across different industries and sectors. 【Overview】 ■ Trouble Type: Rat Hole ■ Hopper Size: 2800×2800 ■ Brodisk Installation Overview: 8 units installed in 6 tiers ■ Air Aeration Sequence: 8 units turned on sequentially from the bottom tier ■ Powder Characteristics: Coal dust, under 2mm, with slight moisture * For more details, please refer to the PDF document or feel free to contact us. * Our website features numerous case studies, which can be accessed through the link below.

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  • Powder Supply Device
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0142 Aluminum hydroxide rat hole measures

0142 Aluminum hydroxide rat hole measures

Smoothly solve issues like the rat hole phenomenon with limited costs!

Here is an example of measures taken against rat hole phenomena in aluminum hydroxide. During the trial operation of new equipment, the air knocker could not resolve the rat hole phenomenon of the powder, so a blow disk was additionally introduced. The problem was smoothly resolved at a limited cost. 【Hopper Overview】 ■ 1000φ eccentric hopper ■ Outlet diameter: 150A 【Powder Overview】 ■ Aluminum hydroxide ■ Bulk density: 0.3–0.5 ■ Particle size: average particle diameter of about 1 micron 【Key Points of This Equipment】 ■ The elastic disk (silicone) is very important in terms of strength and durability due to the risk of foreign matter contamination. The silicone disk of this equipment is exceptionally strong and durable. You will understand once you use it! ■ Control (how to aerate?) is important! We provide guidance on what should be done. A dedicated controller is also available. *For more details, please refer to the PDF document or feel free to contact us. *Our website contains numerous implementation examples, which can be checked via the link below.

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0150 Measures against rat holes with ash powder that absorbs oil.

0150 Measures against rat holes with ash powder that absorbs oil.

Prevent rat holes in ash powder that has absorbed oil by using air injection with a Brody disk!

We prevented the rat holes in the ash powder that absorbed oil by using air injection along the vibration and the inner wall of the hopper (via a blow disk). 【Overview】 ■Industry: Fertilizer and Feed ■Hopper Overview: Conical hopper 700φ (outlet 250φ) ■Hopper Accessories: Agitator for mixing… Unable to eliminate rat holes ■Preliminary Loan: Available 【Specifications】 ■Blow Disk: BD-15S-W×3 ■Controller: C-SV1×1 【Key Points of This Equipment】 ■The elastic disk (silicone) is very important in terms of strength and durability due to the risk of foreign matter contamination. The silicone disk of this equipment is exceptionally strong and durable. Once you use it, you will understand! ■Control (how to aerate?) is crucial! We provide guidance on what should be done. A dedicated controller is also available. *For more details, please refer to the PDF document or feel free to contact us. *Our website features numerous implementation examples, which you can check through the link below.

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0330 Immediate delivery for rat hole measures using cellulose!

0330 Immediate delivery for rat hole measures using cellulose!

Introducing a case study on the implementation of Brodisk for rat hole prevention.

We would like to introduce a project delivered to a machinery manufacturer. "During the load operation after the completion of the equipment, a rat hole occurred," which led to the urgent adoption of our solution. There were only a few days left until the machinery manufacturer was scheduled to ship this equipment, so we promptly delivered the blow disk for retesting. The results were favorable, and we received positive feedback that they could ship with confidence. 【Overview】 ■ Hopper diameter: Approximately 600φ ■ Discharge diameter: Approximately 70φ ■ Raw material: Cellulose (bulk density: approximately 0.2) ■ Equipment configuration: Two blow disks on the upper level and two blow disk minis on the lower level (near the discharge area) *For more details, please refer to the PDF document or feel free to contact us. *Our website features numerous case studies. You can check them out through the link below.

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0461 Measures against rat holes caused by food-derived fine powders

0461 Measures against rat holes caused by food-derived fine powders

The rat hole and bridge phenomenon have ceased to occur, and we are operating smoothly!

As a countermeasure against rat holes, we installed vibrators and knockers, but we received a consultation regarding a case where a bridge formed, causing the material to become more compacted due to degassing. First, we received a few hundred cc of hopper drawings and material samples from the customer. After reviewing them, we determined that there were no significant risks and provided guidance on the applicable models and layout. The rat holes and bridging phenomena ceased to occur, and operations have been running smoothly. [Case Overview] ■ Subject: Unknown name (similar properties to powdered milk) ■ Hopper Diameter: 1200φ ■ Discharge Section: 250×250 *For more details, please refer to the PDF materials or feel free to contact us. *Our website features numerous implementation examples, which can be accessed via the link below.

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0509 Measures against rat holes in dehydrated cakes

0509 Measures against rat holes in dehydrated cakes

Confirmed effectiveness with manual air injection! The test results are good, and this is a case where it was adopted along with the controller.

At the chemical manufacturer's plant, the dewatered cake is stored in a hopper before being supplied to the drying equipment. However, a rat hole forms in this hopper, which is why they adopted our bridge breaker. After reviewing the hopper drawings and samples, we provided examples of the equipment layout and control. For the layout, we proposed a total of 7 Brody disks (standard type): 3 disks on the central inclined surface of the three surfaces, and 2 disks each on the remaining two adjacent surfaces. Since the user wanted to test the equipment, we lent them these 7 disks, and they confirmed the effectiveness through manual air injection. The test results were favorable, and they have since adopted the equipment along with a controller for automatic control. [Case Summary] ■ Target: Unknown name (although it is a dewatered cake, it appears powdery) ■ Hopper Overview: Approximately 2000×1200 with three inclined surfaces (one surface is vertical) ■ Discharge: Dual-axis feeder *For more details, please refer to the PDF document or feel free to contact us.

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0552 Metal powder rat hole measures

0552 Metal powder rat hole measures

The hopper diameter is φ500! Here is an introduction to a case where it was adopted as a measure against rat holes in metal powder.

We have adopted measures against rat holes in metal powder. Three Bro-Disk Minis are placed near the discharge area, slightly above the center of the hopper, along with three Bro-Disks. Using the C-SV4 controller, which has four built-in solenoid valves, a total of six Bro-Disks and four Bro-Disk Minis are sequentially activated with air. Our company provides information on models, arrangements, and control examples suitable for our customers' diverse conditions. The arrangement is particularly important given the simplicity of the equipment. Please feel free to contact us, even if it is a hassle. 【Product Specifications】 ■ Bro-Disk Mini: BD-08S-B x 3 ■ Bro-Disk: BD-15S-B x 3 ■ Controller: C-SV4 x 1 *For more details, please refer to the PDF document or feel free to contact us.

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