CN201087969Y - Drum type microwave continuously heating mechanism for solid materiel - Google Patents

Abstract

A microwave continuous heating device of drum-type solid materiel consists of a feed hopper, a materiel rotary drum, a rotary drum ring idler wheel, a rotary drum inner ring baffle, a microwave heating chamber, a discharge hopper, a road wheel, a device bracket, an electric control casing, an electric motor, a gear-box and a belt pulley. The solid materiel enters into the materiel rotary drum from the feed hopper and moves from a rotary drum feed hopper towards the discharge hopper in the successive way under the mixing condition, when passing through the microwave heating chamber, the materiel is heated evenly, the heating degree is controlled by the rotary speed of the rotary drum and the power of the microwave, the materiel after being heated is discharged from the discharge hopper, and the heating process of the materiel can be performed continuously. The device can be used for the solid materiel with uneven texture, and have better heating process ability for the solid materiel with higher liquid water content, due to the mixing function of the device, the texture of the solid mixed materiel after the heating process is more even. The device also can perform the drying process for the solid materiel with lower liquid water content. The device can be applied to a good many fields such as the food, the farm and sideline product processing, the brewing, the organic waste treatment, the solid-state fermentation, the chemical industry and the manufacturing, etc.

Description

Microwave continuous heating device for drum-type solid materials

Involved in technical field

The utility model relates to a drum-type microwave continuous heating device for solid materials, which is suitable for heating and drying microwave-heated solid materials, and relates to the field of engineering technology.

Background technique

At present, in many industries such as food, agricultural and sideline product processing, brewing, solid-state fermentation, organic waste treatment, chemical industry, manufacturing industry, etc., the problem of heating and drying of solid materials is often encountered. The continuous heating of materials by microwave is one of the best choices. It has many advantages such as simple equipment, easy operation, low energy consumption, and easy automatic continuous operation. The purpose of the utility model is to provide a device for continuously heating solid materials using microwaves.

Contents of the invention

The drum-type microwave continuous heating device for solid materials consists of a feed hopper (1), a material drum (2), a drum ring roller (3), a ring baffle inside the drum (4), a microwave heating chamber (5), an unloading Hopper (6), walking wheel (7), device support (8), electrical control box (9), motor (10), gearbox (11), belt drive wheel (12), is characterized in that: long tube The material drum runs through the microwave heating chamber, the drum rotation speed is adjustable, and the microwave heating power can be adjusted and controlled in groups.

The purpose of this utility model is achieved in that the solid material enters the material drum (2) from the feed hopper (1), and under the combined action of the rotation of the drum and the ring-shaped baffle (4) and gravity in the drum, the material In the state of stirring, it moves from the drum feed hopper to the discharge hopper one by one. When the material passes through the microwave heating chamber (5), it is heated evenly. The heating degree is controlled by the rotation speed of the drum and the microwave power. The heated material is discharged from the discharge hopper. , The heating process of the material can be carried out continuously.

Description of drawings:

Figure 1 is a schematic diagram of a drum-type microwave continuous heating device for solid materials;

Figure 2. Schematic diagram of the annular baffle inside the drum;

1. Feeding hopper; 2. Material drum; 3. Drum ring roller; 4. Ring baffle inside drum; 5. Microwave heating chamber; 6. Unloading hopper; 7. Walking wheel; 8. Device bracket; 9 , Electrical control box; 10, motor; 11, gearbox; 12, belt drive wheel.

Detailed ways

The utility model is a drum-type microwave continuous heating device for solid materials, which consists of a feed hopper (1), a material drum (2), a drum ring roller (3), a ring baffle inside the drum (4), and a microwave heating chamber ( 5), discharge hopper (6), walking wheel (7), device support (8), electrical control box (9), motor (10), gearbox (11), belt drive wheel (12), composition.

The drum of the microwave continuous heating device for drum-type solid materials is made of engineering materials with heat resistance and high microwave permeability (such as heat-resistant engineering plastics, heat-resistant resin, glass fiber reinforced plastics, etc.). The rotating drum is made into a long cylindrical shape and runs through the entire microwave heating chamber.

Fig. 2 is a schematic diagram of the annular baffle in the drum. The figure is a front view of the inner annular baffle of a single drum, which is inclined to the direction of material travel when the drum rotates, as shown in Figure 3 (a schematic diagram of the structure and position of the inner annular baffle inside the material drum).

The heating chamber of the drum-type microwave continuous heating device for solid materials is designed in a cylindrical shape. According to the heating requirements of solid materials, microwave magnetrons are superimposed (microwave heating power superposition). The superposition method is as follows:

Method 1. The magnetron can be installed on the corresponding positions of the equal circle of the circular resonator, such as the installation of 2 tubes on the 2 equal circle, the installation of 3 tubes on the 3rd circle, and the installation of 4 tubes on the 4th circle. Tube installation, 5-tube installation on a 5-divided circumference....

Method 2. The magnetrons can be grouped and installed at the corresponding points on the equally divided circle of the circular resonator, such as a group of 2 tubes on a 4 equal circle, two sets of 4 tubes, and 2 tubes on a 6 equal circle. One group of tubes, three groups of 6 tubes; 3 tubes in one group, two groups of 6 tubes; 6 tubes in a group of 12 equally divided circles, two groups of 12 tubes; 4 tubes in one group, three groups of 12 tubes; 3 tubes One set, four sets of 12 tubes installation; two sets of 12 tubes, six sets of 12 tubes installation....

Method 3: The corresponding number of magnetrons can be installed on the wall of the cylindrical resonant cavity along the long axis according to a certain length unit on the equally divided circle.

Installing the magnetron in the above way can realize the formation of larger microwave heating power with a smaller power magnetron, and realize a relatively uniform microwave heating area in a certain area. By installing the magnetron in groups, the magnetron can be realized Switching between groups during working hours can effectively guarantee the service life of the magnetron.

Using the above multi-group magnetron installation technology has the following advantages:

1. Microwave heaters that can achieve higher output power;

2. The microwave heating process with adjustable power can be realized;

3. The 900W magnetron and its control circuit with mature production technology and high cost performance can be used;

4. The performance of a single magnetron and its control circuit is consistent, interchangeable, easy to maintain, sufficient accessories, easy to purchase.

A temperature sensor is installed on the wall of the drum for online measurement and control of the heating temperature of the solid material.

A major advantage of the microwave continuous heating device for drum-type solid materials is that it can be used for various types of solid materials, and can be used for solid materials with non-uniform texture. It also has better heat treatment capacity for solid materials with high water content. , the material will not be compressed during the heating process, and generally there will be no water seepage; due to the stirring effect of the device, the texture of the solid mixture material after heating treatment will become more uniform.

The drum-type microwave continuous heating device for solid materials can also dry solid materials with low water content.

Claims (6)

1. The microwave continuous heater of drum-type solid material by ring baffle (4), microwave heating chamber (5), dump skip (6), road wheel (7), appliance stand (8), electric control box (9), motor (10), gearbox (11), belt pulley (12) in the feed hopper (1), material rotary drum (2), rotary drum annular rollers (3), rotary drum, form, it is characterized in that: long tubular material rotary drum runs through microwave heating chamber, drum rotating rate adjusted, microwave heating power can divide into groups to regulate control.
2. 2. device according to claim 1 is characterized in that: the heating chamber of this device is designed to cylindrical shape.
3. 3. device according to claim 1 is characterized in that: microwave generator is pressed certain-length and circumference Along ent position, and grouping is installed in the cylindrical shape resonant cavity of heating chamber.
4. 4. device according to claim 1 is characterized in that: ring baffle and material direct of travel are the angle of inclination in the rotary drum.
5. 5. device according to claim 1 is characterized in that: the material rotary drum can level or is tilted to place promptly 0 °≤angle of inclination 〉=90 °.
6. 6. device according to claim 1 is characterized in that: mounting temperature sensor on the wall of material rotary drum, can carry out online measurement and control of temperature to adding thermal material.

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