CN-120757181-B - Negative pressure low temperature dryer for treating evaporation mother liquor

Abstract

The invention relates to the field of dryers, and discloses a negative pressure low temperature dryer for treating evaporation mother liquor. According to the invention, an evaporation bin is arranged in an equipment box body, an air cylinder is fixedly connected to the top of the evaporation bin, a motor fixing seat is fixedly connected to the lower part of the air cylinder, a motor is fixedly connected to the inner side of the motor fixing seat, a motor shaft is rotatably connected to the lower part of the motor, a scraping plate is fixedly connected to the lower part of the motor shaft, a fixed screw limit ring is fixedly connected to the lower part of the motor fixing seat, a fixed screw is connected to the fixed screw limit ring, a sliding ring is connected to the fixed screw, a connecting rod is connected to the sliding ring, a scraping plate cleaning block is fixedly connected to the lower part of the connecting rod, and a scraping plate is slidingly connected to the inner side of the scraping plate cleaning block. Can disperse the mother liquor into the film, increase the area of contact with hot air, improve drying efficiency, and the scraper blade cleaning block slides in the outside of scraper blade, can keep the surface of scraper blade clean, prevent that the long-term adhesion of mother liquor corrodes the scraper blade, improve the life of scraper blade.

Inventors

• CAO LIZHAN
• HU SONGLIN
• Feng Songcheng
• Tian Jiejin

Assignees

• 湖北松益智能化工机械有限公司

Dates

Publication Date

20260505

Application Date

20250819

Claims (2)

1. 1. A negative pressure low-temperature dryer for treating evaporation mother liquor comprises a device box body (1) and is characterized in that an evaporation bin (2) is arranged in the device box body (1), a cylinder (3) is fixedly connected to the top of the evaporation bin (2), a motor fixing seat (4) is fixedly connected to the lower portion of the cylinder (3), a motor (5) is fixedly connected to the inner side of the motor fixing seat (4), a motor shaft (6) is rotatably connected to the lower portion of the motor (5), a scraping plate (7) is fixedly connected to the lower portion of the motor shaft (6), a fixed screw limiting ring (8) is fixedly connected to the lower portion of the motor fixing seat (4), a fixed screw (9) is fixedly connected to the lower portion of the fixed screw limiting ring (8), a sliding ring (10) is fixedly connected to the outer side of the fixed screw (9), a connecting rod (11) is rotationally connected to the periphery of the sliding ring (10), a scraping plate cleaning block (12) is fixedly connected to the lower portion of the connecting rod, a scraping plate (7) is fixedly connected to the inner side of the scraping plate cleaning block (12), a vacuum exhaust port (24) is connected to the left side of the device box body (24), the vacuum evaporator comprises a vacuum evaporator body, a vacuum evaporator (1) and a vacuum evaporator (1), wherein the vacuum evaporator body is fixedly connected with the right end of the vacuum evaporator (25), a mother liquor accommodating tray (26) is fixedly connected with the bottom of the vacuum evaporator (2), a sealing plate (16) is fixedly connected with the outer side of the mother liquor accommodating tray (26), the mother liquor accommodating tray (26) is fixedly connected with the lower side of a scraping plate (7), a control screen (20) is fixedly connected with the front side of the vacuum evaporator body (1), a steam collecting bin (15) is fixedly connected with the upper side of the vacuum evaporator (2), a condensing pipe (21) is fixedly connected with the upper side of the steam collecting bin (15), a vacuum exhaust port (18) is fixedly connected with the left side of the vacuum evaporator body (1), a heating pipe (14) is fixedly connected with the inner side of the vacuum evaporator body (2), a hot air blower (13) is fixedly connected with one end of the heating pipe (14), a vacuum evaporator (19) is fixedly connected with the lower side of the hot air blower (13), and a maintenance door (19) is connected with the front side of the vacuum evaporator body (1).
2. 2. The negative pressure low temperature dryer for treating evaporation mother liquor according to claim 1, wherein a drain pipe (22) is fixedly connected to the lower part of the condensing pipe (21), and a water tank (23) is fixedly connected to the lower part of the drain pipe (22).

Description

Negative pressure low temperature dryer for treating evaporation mother liquor Technical Field The invention belongs to the technical field of dryers, and particularly relates to a negative pressure low-temperature dryer for treating evaporation mother liquor. Background The evaporation mother liquor usually contains high concentration of salt, organic matters and other impurities, and the traditional treatment method is high in energy consumption and low in efficiency. Along with the increasingly strict environmental protection requirements and the increasingly prominent importance of resource recycling, the development of an efficient, energy-saving and environment-friendly device for treating evaporation mother liquor is particularly important. The negative pressure low-temperature dryer utilizes a negative pressure environment to reduce the boiling point of the solution, so that evaporation and drying of the mother liquor are realized at a lower temperature. The technology not only effectively reduces the energy consumption, but also avoids damaging heat-sensitive substances, and ensures the quality of materials in the treatment process. Compared with the traditional high-temperature drying method, the negative pressure low-temperature dryer can be operated under milder conditions, and the treatment efficiency and the product quality are obviously improved. The device recovers the steam generated by evaporation through the condensing system, further reduces the discharge of waste gas and waste liquid, and meets the requirements of modern industry on environmental protection and sustainable development. The automatic control system can realize accurate temperature and pressure control, ensures the stability and reliability of equipment operation, and is suitable for high-concentration wastewater treatment and resource recovery in a plurality of industries such as chemical industry, pharmacy, food and the like. In a word, the negative pressure low-temperature dryer provides an innovative and effective solution for solving the problem of evaporating mother liquor treatment. However, the common negative pressure low temperature dryer cannot clean mother liquor attached to the scraping plate in the drying process, and can corrode the scraping plate for a long time, so that the service life of the scraping plate is low. Disclosure of Invention The invention aims to solve the problems and provide a negative pressure low temperature dryer for treating evaporation mother liquor. The technical scheme includes that the negative pressure low-temperature dryer for processing evaporation mother liquor comprises a main body, an evaporation bin is arranged in a box body of the equipment, an air cylinder is fixedly connected to the top of the evaporation bin, a motor fixing seat is fixedly connected to the lower portion of the air cylinder, a motor is fixedly connected to the inner side of the motor fixing seat, a motor shaft is rotatably connected to the lower portion of the motor, a scraping plate is fixedly connected to the lower portion of the motor shaft, a fixed screw limiting ring is fixedly connected to the lower portion of the motor fixing seat, a fixed screw is fixedly connected to the lower portion of the fixed screw limiting ring, a sliding ring is slidably connected to the outer side of the fixed screw, connecting rods are rotatably connected to the periphery of the sliding ring, a scraping plate cleaning block is fixedly connected to the lower portion of the connecting rods, and a scraping plate is slidably connected to the inner side of the scraping plate cleaning block. Through adopting above-mentioned technical scheme, place the mother liquor that will treat in the mother liquor places the tray, then place the tray through the closing plate and put into the bottom of evaporation storehouse, can keep evaporation storehouse inside sealed tight through the sealing rubber of fixing on the closing plate, then start the negative pressure vacuum pump through the control panel, the negative pressure vacuum pump can be through negative pressure vacuum pump suction evaporation storehouse, steam collection storehouse, condenser pipe and water tank internal air are taken out and are kept inside low pressure, then start the air heater, heat evaporation storehouse internal heating through the heating pipe, can start to drive motor fixing base decline in the heating evaporation process, until the bottom of scraper blade and mother liquor place the tray contact, the motor can drive the scraper blade through the motor shaft and rotate, can disperse the mother liquor into the film, increase the area of contact with the hot air, improve drying efficiency, can drive the slip ring in the outside of fixed lead screw through scraper blade cleaning piece and connecting rod when the scraper blade rotates, thereby drive the scraper blade cleaning piece and slide in the outside of scraper blade, can keep the surface clean of scra