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The negative pressure conveying and powder supply system for bread factories is an automated conveying device designed specifically for powdered raw materials (such as flour, starch, wholemeal flour, etc.) used in bread production. It uses a negative pressure (vacuum) environment to achieve efficient and clean conveying of powdered materials in closed pipes. It is widely used in the entire process from raw material storage to transfer to processing (such as kneading and mixing) and is one of the important auxiliary systems for large-scale, standardised production in modern bread factories.
High degree of automation reduces labour costs.
The equipment takes up little space, reducing site costs.
Intelligent control reduces raw material waste and lowers energy consumption.
Pipeline sealed transportation, no dust spillage, clean production.
Pneumatic conveying is energy efficient, environmentally friendly, and does not easily damage the properties of the material.
When using a negative pressure conveying system, bread factories should pay attention to the following issues to ensure stability:
| Common Problems | Cause Analysis | Solutions |
|---|---|---|
| Pipeline Blockage | High powder moisture content (≥12%), agglomeration; Pipe elbow angle too small (≤90°); Conveying speed too low (<8m/s) | Raw material pretreatment (dry to moisture content ≤10%); Use large – curvature elbows (R≥3D, D is the pipe diameter); Increase negative pressure to above – 0.05MPa (increase flow rate) |
| Filter Bag Blockage | Insufficient filter bag precision (>5μm); Not cleaned in time (excessive dust adhesion) | Select 1 – 3μm food – grade filter bags; Install automatic ash cleaning devices (such as pulse reverse blowing, clean ash once every 30 minutes) |
| Decrease in Conveying Efficiency | Aging of negative pressure source (decrease in air extraction volume); Pipeline leakage (such as poor flange sealing) | Regularly overhaul the vacuum pump (replace sealing parts); Use pressure sensors to detect pipeline tightness (replace sealing rings when leakage rate > 5%) |
| Cross – Contamination of Powders | Pipeline not cleaned when switching powder types; Poor sealing of shutdown fan | Design “pipeline flushing ports” (use compressed air to purge for 3 minutes before switching); Select double – gate plate shutdown fans (improve tightness) |
We are a high-tech enterprise specializing in the research, development and production of vibrating screening, conveying and lifting, crushing and mixing equipment, with products including but not limited to:
●Vacuum Feeder
●Small Bag Dust-free Feeding Station
●Ton Bag Feeding Station
●Powder Supply System
●Circular Swing Screen Series
●Vibrating Screen
We support customized production to meet the special needs of different industries.
Of course, we will design according to customer requirements.
5-10 working days for conventional products.
We have a large factory in Xinxiang, China, covering an area of 12,000 square meters. Welcome to visit!
We usually accept T/T, L/C，T/T: 30% in advance as down payment, the balance before delivery.
We provide 1-2 years warranty (depending on the model), after-sales team responds within 24 hours, support remote guidance or on-site repair.
