There is a problem with the drying equipment in the factory, the drying effect is not good, what is

The drying effect is not good, and the general problem should be in the heat source part, such as the temperature drop of the heat source. Therefore, the landlord first checks the temperature of the heat source, followed by the drying time, for example, the longer the material is in the same temperature environment, the better the drying effect, if the time is short, the drying effect will be worse. Because the situation you said is not very clear, I can only say it in general terms, I hope it will help you.

You need to know what kind of drying equipment it is, so that you can solve the problem faster.

Summary. Solutions to problems that may be encountered during the pro-drying process.

Wood plays an irreplaceable role in the field of furniture, so how to treat wood and optimize the performance of wood is an urgent problem for wood producers to solve.

As a kind of polymer and polymer, wood contains three kinds of water: free water, absorbent water, and chemical water, so the newly produced raw wood can only enter the furniture processing process after drying. But the drying process is often accompanied by problems.

Warping: Due to the different direction of the wood grain, the shrinkage is different. Natural drying, direct sunlight on the upper plank, resulting in severe shrinkage; Artificially dried, the wood closest to the heating tube is prone to warping.

1. Distortion: Most of them are due to the complex grain parts of the wood, and the moisture cannot move evenly, which causes different stresses and causes distortion. This phenomenon mainly occurs in parts of wood with high moisture content and spiral grain on the wood.

How to solve the problems that may be encountered during the drying process.

Wood has an irreplaceable role in the field of furniture, so how to deal with wood and optimize the performance of wood is an urgent problem for wood producers to solve. As a kind of polymer and polymer, wood contains three kinds of water: free water, absorbent water, and chemical water, so the newly produced raw wood can only enter the furniture processing process after drying.

But the drying process is often accompanied by problems. Warping: Due to the different direction of the wood grain, the shrinkage is different.

Natural drying, direct sunlight on the upper plank, resulting in severe shrinkage; Artificially dried, the wood closest to the heating tube is prone to warping. 1. Distortion: Most of them are due to the complex texture of the wood seepage, and the moisture cannot move evenly, which causes different stresses and causes distortion.

This phenomenon mainly occurs in parts of wood with high moisture content and spiral grain on the wood.

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The main purpose of the dryer is to remove the moisture in the compressed air, with the refrigeration dryer can remove more than 90% of the saturated water vapor, if there is still a lot of water in the rear pipeline of the refrigeration dryer, then the refrigeration dryer needs to be checked, the aforementioned abnormal working conditions of the refrigeration dryer will cause the refrigeration system to be abnormal, and then lead to the refrigeration effect to decline, of course, it will affect the water removal effect. In fact, in addition to the above reasons, there are also the following reasons that will cause poor water removal effect: the compressed air pipeline bypass valve is not closed, the front heat exchanger inside the refrigeration dryer leaks, and the drain is poor.

The compressed air pipeline bypass valve is not closed tightly, this problem is easy to deal with, and it can be closed tightly. If the heat exchanger inside the dryer leaks, this will cause a part of the compressed air to go out directly from the dryer outlet without passing through the evaporator, this problem can hardly be handled, and the machine is generally changed directly, of course, the choice of large-scale regular enterprise products will reduce the probability of encountering this product, and the maintenance of the machine cost is high, so choose the mold core dryer, and the filter element can be directly replaced when the adsorption effect is poor, so as to achieve a better drying effect.

Although the drain is a vulnerable part in the refrigeration dryer, it is actually a very important place, the refrigeration dryer must be discharged through the drain in addition to the water, if the drain is blocked or damaged and cannot drain normally, the refrigeration dryer will lose the water removal function, and the moisture in the compressed air will run to the rear pipeline intact. Therefore, in the case of poor water removal effect, the working condition of the drain should be carefully checked. The daily maintenance of the refrigeration dryer is not much, in addition to cleaning the condenser in a timely manner, the other is to check the working condition of the drainer frequently, and clean it in time if there is a blockage.

If it is slightly blocked, you can pour a little dish soap into the drain, and then shake it up and down a few times before washing. If the blockage is more serious, you need to decompose and clean the drain, the explode diagram of the drain is generally in the manual, please decompose and clean according to the exploding diagram. For drains that cannot be cleaned and solved, it is recommended to replace them immediately.

Summarize several precautions for the use of dryers.

1) After the user purchases the equipment, he should count all the parts, accessories and accompanying wearing parts, special tools and product instruction manuals, quality inspection certificates, warranty certificates, etc.

2) When installing the equipment, the hot blast stove, fan, dryer, and transportation pipeline should be aligned and connected tightly and seamlessly, so as not to enter too much cold air and cause air leakage.

3) Installation. Close the power switch and run the hot air blower, air cooler and other rotating parts. Observe the direction of rotation and correct it immediately if there is a reversal.

4) It should be noted when using: The agricultural products entering the drying equipment must remove weeds with a length of more than 5cm, and the cleanliness of the materials must be more than 90%, otherwise it will cause blockage. During the drying process, it is necessary to ensure that the hot air temperature is within the range required by the process, if the temperature is lower than the specified range, the material drying effect is poor, and the productivity is low; If the temperature is higher than the specified temperature, it will seriously affect the product quality, and even produce the phenomenon of scorching fire.

The heating temperature of various agricultural products in the dryer is different, rice and corn are below 50, wheat is below 60, and rapeseed is 60 and 70 is below. Measure the initial moisture of agricultural products before drying, and send agricultural products with different moisture levels to the equipment for drying, so as to avoid uneven moisture of dried products and affect product quality.

5) Specialized technical personnel should be trained immediately after the purchase of new equipment, and special personnel should be required to repair and maintain the equipment.

The main purpose of the dryer is to remove the moisture in the compressed air, and the refrigeration dryer can remove more than 90% of the saturated water vapor, if there is still a lot of water in the rear pipeline of the refrigeration dryer, then the refrigeration dryer needs to be inspected, and the abnormal working conditions of the refrigeration dryer mentioned above will cause the refrigeration system to be abnormal, which will lead to the decline of the refrigeration effect, which will affect the water removal effect. The purchase of drying equipment or to the big manufacturers, Changzhou Zhifang drying service is very thoughtful, they promise that as long as there is a certain time to go out of trouble, arrange a special person to repair.

Effect of drying on food quality.

1) Physical Change:

Shrinkage and cracking: When the food is dried, the volume is reduced due to the removal of water, and the elasticity of muscle tissue cells is partially or completely lost;

Surface hardening: a special phenomenon of shrinkage and closure on the surface of food materials, and surface hardening is easy to occur when food containing high concentration of sugar and soluble substances is dried.

Texture change: the water is removed when drying, due to the concentration and contraction of heat and salt, it is easy to cause protein denaturation, and the denatured protein can not completely absorb water, and the starch and most colloids also change and their hydrophilicity decreases;

Porosity formation: It is possible to produce so-called porous structures after dry shrinkage;

2) Chemical changes:

Changes in nutrient composition: protein dehydration, denaturation, lipid oxidation, loss of vitamins;

Changes in the color of food: the color of fresh food is generally bright, and drying will change its physical and chemical properties, so that the ability of food to reflect, scatter, absorb and transmit visible light will be changed, thereby changing the color of food;

Changes in food flavor: The food loses its volatile flavor components.