CN215002560U

CN215002560U - Waste heat recovery's flash drying system

Info

Publication number: CN215002560U
Application number: CN202121132537.5U
Authority: CN
Inventors: 查奇星; 查领先; 张俊
Original assignee: Changzhou Xinggan Drying Equipment Co ltd
Current assignee: Changzhou Xinggan Drying Equipment Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-12-03
Anticipated expiration: 2031-05-25

Abstract

The utility model discloses a flash evaporation drying system for waste heat recovery, which comprises a control system, and a waste heat recovery heater, a filtering device, an air blower, a heat dissipation device, a flash evaporation dryer, a cyclone dryer, a bag-type dust collector and a draught fan which are connected in sequence; the air outlet of the induced draft fan is connected with the waste heat recovery heater, and the control system is connected with each part. The utility model discloses drying strength is big to retrieve reutilization to tail gas, can practice thrift a large amount of costs, improve dry efficiency.

Description

Waste heat recovery's flash drying system

Technical Field

The utility model discloses the drying device field, concretely relates to waste heat recovery's flash drying system.

Background

Traditional flash distillation desiccator is hot-air tangent line entering desicator bottom, and the material obtains the dispersion under the effect of striking, friction and shearing force in getting into the desicator by the spiral feeder under the effect of high-speed rotatory stirring rake, cubic material is smashed rapidly, and the material is carried to the separator and is carried out gas-solid separation afterwards, and the packing is collected to the finished product, and tail gas is then evacuation after dust collector handles.

At present, flash evaporation dryers on the market are directly discharged tail gas, the temperature of the tail gas is high, energy waste can be caused by direct emptying, and water for cooling is not recycled.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provided a waste heat recovery's flash drying system to solve the looks problem.

The utility model adopts the following technical scheme: a flash evaporation drying system for waste heat recovery comprises a control system, and a waste heat recovery heater, a filtering device, an air blower, a heat dissipation device, a flash evaporation dryer, a cyclone dryer, a bag-type dust collector and an induced draft fan which are sequentially connected; the air outlet of the induced draft fan is connected with the waste heat recovery heater, and the control system is connected with each part.

Preferably, the filtering device comprises: primary filter, well effect filter and high temperature high efficiency filter, primary filter and well effect filter set up between waste heat recovery heater and air-blower, high temperature high efficiency filter sets up between heat abstractor and flash distillation desiccator.

Preferably, the heat dissipation device comprises a radiator and a condensate water recovery device, the radiator is connected with a water inlet pipe and a water outlet pipe, and the condensate water recovery device is connected with the water outlet pipe of the radiator.

Preferably, the flash dryer and the bag-type dust remover are respectively provided with an air inlet, and the air inlets of the flash dryer and the bag-type dust remover are connected with a compressed air pipeline.

Has the advantages that:

1. the utility model discloses combine together whirl, fluidization, spout and crushing classification technique, each part of system is compact, and is small, and production efficiency is high, can realize continuous production.

2. The utility model discloses drying strength is big, retrieves reutilization, and the energy consumption is low to the waste heat, and the thermal efficiency is high.

3. The material retention time is short, the quality of the finished product is high, and the method can be used for drying heat-sensitive materials.

4. The negative pressure or micro-negative pressure operation has good tightness, and is provided with a control device which can monitor and control each part in the system, so that the efficiency is higher.

5. Through to being its and condensate water recycle once more, practice thrift the cost more, eliminate the pollution to the environment.

Drawings

FIG. 1 is a block diagram of a flash drying system for waste heat recovery;

in the figure: the system comprises a waste heat recovery heater 1, a filtering device 2, a primary filter 2-1, a medium-efficiency filter 2-2, a high-temperature high-efficiency filter 2-3, an air blower 3, a heat dissipation device 4, a flash evaporation dryer 5, a cyclone dryer 6, a bag-type dust collector 7 and an induced draft fan 8.

Detailed Description

The present invention is described in detail with reference to the accompanying drawings, which are not intended to limit the scope of the present invention.

A flash evaporation drying system for waste heat recovery comprises a control system, and a waste heat recovery heater 1, a filtering device 2, an air blower 3, a heat dissipation device 4, a flash evaporation dryer 5, a cyclone dryer 6, a bag-type dust collector 7 and an induced draft fan 8 which are connected in sequence; the air outlet of the induced draft fan 8 is connected with the waste heat recovery heater 1, and the control system is connected with all the parts.

Preferably, the filtering device comprises: the device comprises a primary filter 2-1, a medium-efficiency filter 2-2 and a high-temperature high-efficiency filter 2-3, wherein the primary filter 2-1 and the medium-efficiency filter 2-2 are arranged between a waste heat recovery heater 1 and an air blower 3, and the high-temperature high-efficiency filter 2-3 is arranged between a heat dissipation device 4 and a flash evaporation dryer 5.

Preferably, the heat dissipation device 4 comprises a radiator and a condensate water recovery device, the radiator is connected with a water inlet pipe and a water outlet pipe, and the condensate water recovery device is connected with the water outlet pipe of the radiator.

Preferably, the flash dryer 5 and the bag-type dust collector 7 are respectively provided with an air inlet, and the air inlets of the flash dryer 5 and the bag-type dust collector 7 are connected with a compressed air pipeline.

The working principle is as follows:

the hot air enters the bottom of the dryer tangentially, and forms a powerful rotating wind field under the drive of the stirrer. The materials enter the dryer through the spiral feeder, under the strong action of the high-speed rotating stirring paddle, the materials are dispersed under the action of impact, friction and shearing force, and the massive materials are quickly crushed, fully contacted with hot air, heated and dried. The dehydrated dry materials rise along with hot air flow, the grading ring intercepts large particles, small particles are discharged out of the dryer from the center of the ring and are recovered by a cyclone separator and a bag-type dust collector to be dried completely or large materials are thrown to the wall of the dryer under the action of centrifugal force and fall to the bottom again to be crushed and dried. The tail gas is treated by the cloth bag dust removing device and then enters the waste heat recovery heater again to preheat the newly entered cold air, and then enters the circulation again.

The utility model is suitable for a material drying such as fluororesin, stearic acid, aluminium hydroxide, zinc carbonate and monosultap comes actual regulation air inlet temperature and relevant humidity according to the particular case of material, needs below 135 degrees with air inlet temperature control if the fluororesin material.

The above description is only for the purpose of illustration, and it should be noted that, in the preferred embodiment of the present invention, a person skilled in the art can make several improvements and decorations on the premise of departing from the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A flash evaporation drying system for waste heat recovery is characterized by comprising a control system, and a waste heat recovery heater (1), a filtering device (2), an air blower (3), a heat radiating device (4), a flash evaporation dryer (5), a cyclone dryer (6), a bag-type dust collector (7) and an induced draft fan (8) which are connected in sequence; the air outlet of the induced draft fan (8) is connected with the waste heat recovery heater (1), and the control system is connected with all the parts.

2. A waste heat recovery flash drying system as claimed in claim 1, wherein the filter means comprises: the device comprises a primary filter (2-1), a medium-efficiency filter (2-2) and a high-temperature high-efficiency filter (2-3), wherein the primary filter (2-1) and the medium-efficiency filter (2-2) are arranged between a waste heat recovery heater (1) and an air blower (3), and the high-temperature high-efficiency filter (2-3) is arranged between a heat dissipation device (4) and a flash evaporation dryer (5).

3. The waste heat recovery flash drying system according to claim 1, wherein the heat sink (4) comprises a heat sink and a condensate recovery device, the heat sink is connected with a water inlet pipe and a water outlet pipe, and the condensate recovery device is connected with the water outlet pipe of the heat sink.

4. The waste heat recovery flash drying system according to claim 1, wherein the flash dryer (5) and the bag-type dust remover (7) are respectively provided with an air inlet, and the air inlets of the flash dryer (5) and the bag-type dust remover (7) are connected with a compressed air pipeline.