CN-122015481-A - Automatic circulation line of full-intelligent electric heating roasting furnace for catalyst

Abstract

The full-intelligent catalyst electric heating mesh belt roasting furnace automatic circulation line has high intelligent degree, namely full-automatic operation, unattended operation and one-key parameter setting. And the automatic assembly and disassembly is realized, namely the feeding accuracy is +/-50 g, and the product quality is effectively improved. The labor intensity of workers is effectively reduced, and the product quality is stable. The manual feeding and discharging of the traditional process is changed into full-automatic, full-sealed, negative-pressure vacuum, upper and lower modes. Thereby realizing accurate feeding, good sealing performance, no dust in workshops and meeting the requirements of environmental protection and energy conservation. The temperature control is accurate and uniform, the electric heating response is quick, the partition is independently controlled, the product consistency is improved by more than 30%, the atmosphere is controllable, the process requirements of various catalysts are met, the activity and the qualification rate are improved, the energy is saved, the consumption is reduced, the total fiber furnace lining and the waste heat recovery are realized, the energy consumption is reduced by 20% -40%, the safety and stability are realized, the multiple interlocking protection is realized, the continuous operation is reliable, and the maintenance amount is low.

Inventors

• CHEN YOULIANG
• CHEN YU
• ZHAO CHAOYANG
• ZOU JUN
• WU XIPENG

Assignees

• 黄冈市华窑中晋窑炉设备有限公司

Dates

Publication Date

20260512

Application Date

20260226

Claims (2)

1. 1. Overcomes the defects of the prior art, provides a full-intelligent electric heating mesh belt roasting furnace, realizes full-parameter automatic control of temperature, speed, atmosphere, wind pressure and waste discharge, improves the roasting uniformity, activity stability and production efficiency of the catalyst, and reduces energy consumption and labor cost.
2. 2. The manual feeding and discharging of the traditional process is changed into full-automatic, full-sealed, negative-pressure vacuum, upper and lower modes, so that the feeding is accurate, the sealing performance is good, and no dust exists in workshops and meets the requirements of environmental protection and energy conservation.

Description

Automatic circulation line of full-intelligent electric heating roasting furnace for catalyst Technical Field The invention belongs to the technical field of industrial catalytic material heat treatment equipment, and particularly relates to a full-intelligent electric heating and mesh belt continuous catalyst roasting furnace which is particularly suitable for full-automatic production integrating drying, glue discharging, roasting and activation of denitration catalysts, molecular sieves and carrier catalysts. Background The conventional catalyst roasting furnace has the following defects that a circulating line is not designed in the conventional process, and the catalyst is discharged by a man-made tool The traditional process is manual feeding and discharging, and the labor intensity of staff is high; the loading and unloading precision is poor and the quality is unstable. The heating temperature fluctuation is large, the temperature control precision is low, and the cracking and the uneven activity of the catalyst are easy to cause; The batch consistency is difficult to be ensured stably due to the sectional manual adjustment and low automation degree; the atmosphere, oxygen content and wind speed in the furnace can not be regulated and controlled in a closed loop, and the furnace is easy to oxidize or not enough to sinter; high energy consumption, poor sealing performance, simple tail gas treatment and no compliance with the requirements of environmental protection and energy conservation. The prior art can not meet the requirements of large-scale, high-precision and intelligent continuous production of the catalyst. Disclosure of Invention 3.1 Object of the invention Overcomes the defects of the prior art, provides a full-intelligent electric heating mesh belt roasting furnace, realizes full-parameter automatic control of temperature, speed, atmosphere, wind pressure and waste discharge, improves the roasting uniformity, activity stability and production efficiency of the catalyst, and reduces energy consumption and labor cost. The manual feeding and discharging of the traditional process is changed into full-automatic, full-sealed, negative-pressure vacuum, upper and lower modes, so that the feeding is accurate, the sealing performance is good, and no dust exists in workshops and meets the requirements of environmental protection and energy conservation. 3.2 Technical proposal A full-intelligent electric heating mesh belt roasting furnace for catalysts comprises a furnace body assembly, a mesh belt conveying system, an electric heating system, a circulating air system, an atmosphere control system, an intelligent control system, a sealing and tail gas treatment system and an automatic and unloading system. The furnace body adopts a modularized sectional structure, which comprises a feeding section, a drying section, a glue discharging section, a roasting section, a constant temperature section, a slow cooling section, a fast cooling section and a discharging section in sequence, wherein the furnace lining adopts a full-fiber high-temperature refractory heat-insulating layer, and the temperature rise of the outer wall is less than or equal to 45 ℃. The net belt conveying process includes stainless steel net belt, variable frequency speed regulation at 0.5-5 m/h, tensioning, deviation correcting and deviation preventing mechanism. The electric heating system comprises a zoned independent electric heating system, silicon carbide rods/resistance wire heating elements and an upper surface and a lower surface, wherein each zone is independently controlled in temperature, the temperature is controlled within the range of room temperature to 650 ℃, and the precision is +/-1 ℃. And in the circulating air system, independent circulating fans and diversion air equalizing plates are arranged in each region, so that horizontal/vertical convection is realized, and the uniformity of a temperature field is +/-3 ℃. Atmosphere control, namely nitrogen/air multi-channel air inlet, on-line monitoring of oxygen content, closed loop control of 50 ppm-21% and adjustable, and inert/oxidation/micro-oxygen roasting. And the sealing system is used for sealing the kiln head and the kiln tail and sealing by a nitrogen curtain to prevent air leakage and oxidation. The intelligent control system comprises an industrial PLC, a touch screen and an Internet of things cloud platform, and is realized by the following steps: multi-zone temperature PID self-tuning control Automatic following and interlocking protection for net belt speed Closed-loop regulation of oxygen content, wind pressure and flow Automatic alarm and stop for overtemperature, belt breakage, overload and overpressure History curve, data storage, remote monitoring, one-touch start-stop Tail gas treatment, namely gas collecting hood, flame arrester, heat exchanger, catalytic oxidation treatment and standard discharge. 3.3 Drawing illustration FIG. 1 is a process layou