CN201926274U - Waste heat recycling spiral drying device - Google Patents

Abstract

The utility model discloses a spiral drying device that can recover and reuse waste heat. A waste heat recovery and reuse system is added to the spiral drying equipment, wherein the waste heat recovery and reuse system includes a fan, a waste heat recovery channel and a heating device. ; The waste heat recovery channel is located on the exhaust port of the spiral drying equipment and connected with the fan; the heating device is located in the outlet pipe of the fan, and the outlet pipe of the fan is connected with the air inlet of the spiral drying equipment; The air inlet of the drying equipment is provided with a temperature sensor used to indicate the operation of the heating device; the top of the spiral drying equipment is provided with a central exhaust port and a number of wet air discharge holes. The utility model solves the problem of waste heat waste during drying of agricultural and forestry products, allows the heat to be recycled and can realize constant temperature control of the air inlet gas temperature, and has the advantages of good drying effect, small footprint, high heat utilization rate and low energy consumption specialty.

Description

A spiral drying device that can recover and reuse waste heat

technical field

The utility model relates to a heat recycling system, in particular to a waste heat recovery and reuse system of drying equipment.

Background technique

At present, the hot air drying process of agricultural and forestry products usually has requirements on drying time and drying quality. In order to shorten the drying time and achieve good drying quality, it is usually necessary to increase the gas temperature at the inlet of the drying equipment. However, this will easily lead to The gas temperature at the gas outlet is too high, because the traditional drying equipment does not have a heat recovery and reuse system, which leads to low energy utilization, resulting in energy waste, poor economy, and is not conducive to environmental protection and energy saving. In addition, traditional drying equipment It also cannot realize the monitoring and setting of the air inlet gas temperature, so as to achieve the purpose of constant temperature control and affect the drying effect.

Utility model content

The purpose of the utility model is to provide a spiral drying device that can recover and reuse waste heat, which has the characteristics of good drying effect, high energy utilization rate, environmental protection and energy saving.

In order to achieve the above purpose, the following technical solutions are adopted:

A spiral drying device that can recover and reuse waste heat. A set of waste heat recovery and reuse system is added to the spiral drying equipment, wherein the waste heat recovery and reuse system includes a fan, a waste heat recovery channel and a heating device; the waste heat The recovery channel is located on the exhaust port of the spiral drying equipment and connected with the fan; the heating device is located in the outlet pipe of the fan, and the outlet pipe of the fan is connected with the air inlet of the spiral drying equipment; the inlet of the spiral drying equipment A temperature sensor for instructing the heating device to work is provided at the air port; a central exhaust port and several moist air discharge holes are provided on the top of the spiral drying equipment.

Preferably, the heating device is a heat pipe.

The utility model adds a set of waste heat recovery and reuse system to the spiral drying equipment, and the gas coming out of the exhaust port on the top of the waste heat recovery and reuse system enters the Luosu drying equipment again after being recovered and heated by the waste heat recovery and reuse system. Reuse, so that the waste heat in the gas discharged from the drying equipment can be effectively used for circulating drying, which effectively improves the utilization rate of heat, reduces energy consumption, reduces production costs and is conducive to environmental protection and energy saving; in addition, the air inlet of the spiral drying equipment The temperature sensor at the top can effectively keep the temperature of the air inlet of the drying equipment constant, and meet the drying temperature requirements of different agricultural and forestry products, thereby improving the drying quality.

Description of drawings

Below according to embodiment and accompanying drawing, the utility model is described in further detail.

Fig. 1 is a front view of a spiral drying device that can recover and reuse waste heat according to the embodiment of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a sectional view along line A-A of Fig. 1 .

In the picture:

1. Fan; 2. Waste heat recovery channel; 3. Heating pipe; 4. Exhaust port; 5. Fan outlet pipe; 6. Air inlet; 7. Temperature sensor; 8. Central exhaust port; 9. Humid air discharge Holes; 10. Spiral drying equipment.

Detailed ways

Below in conjunction with accompanying drawing, further illustrate the utility model by embodiment.

As shown in Figure 1, in the spiral drying device that can recover and reuse waste heat described in the utility model, a set of waste heat recovery and reuse system is added to the spiral drying equipment 10, wherein the waste heat recovery and reuse system includes a fan 1. Waste heat recovery channel 2 and four sets of heat pipes 3; the waste heat recovery channel 2 is located on the exhaust port 4 of the spiral drying equipment 10 and connected to the fan 1; the heat pipe 3 is located in the fan outlet pipe 5, and the The fan outlet pipe 5 is connected to the air inlet 6 of the spiral drying equipment 10; the air inlet 6 of the spiral drying equipment 10 is provided with a temperature sensor 7 for indicating the work of the heating pipe 3; the spiral drying equipment The top of 10 is provided with a central exhaust port 8 and several wet air discharge holes 9.

The hot air enters the spiral drying equipment 10 from the air inlet 6 and rotates up to dry the materials in the drying equipment, absorbing the moisture in the materials to form moist air, part of the moist air is discharged from the central exhaust port 8, and the other part is wet. The air is discharged from the wet air discharge hole 9 on the top of the drying equipment, which not only meets the exhaust requirements, but also makes the hot air rise evenly in the drying equipment; the fan 1 sucks the air with residual heat into the waste heat recovery channel 2 from the exhaust port 4, After being heated by the heat pipe 3 located in the outlet pipe 5 of the fan, the air inlet 6 enters the spiral drying equipment 10 again, and the temperature sensor 7 set at the air inlet 6 can monitor the temperature of the inlet air in real time, so as to control the temperature according to the processing needs. The working switch of the heating pipe 3 achieves the purpose of controlling the constant temperature of the intake air and ensures the drying quality.

Claims (2)

1. a recyclable spiral drying device that utilizes waste heat again is characterized in that, sets up a cover waste heat recovery and utilize system again on spiral drying equipment, and wherein, described waste heat recovery utilizes system to comprise blower fan, waste heat recovery passage and heater again; Described waste heat recovery passage is positioned on the exhaust outlet of spiral drying equipment and with blower fan and links to each other; Described heater is positioned at the fan outlet tube road, and described fan outlet tube road links to each other with the air inlet of spiral drying equipment; The air inlet place of described spiral drying equipment is provided with the temperature sensor that is used to indicate heater work; Described spiral drying equipment top is provided with central exhaust outlet and some humid air taps.

2. the recyclable spiral drying device that utilizes waste heat more according to claim 1 is characterized in that described heater is a heat-generating pipe.

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