CN-224215353-U - Online deashing TO direct-fired incinerator exhaust treatment system

CN224215353UCN 224215353 UCN224215353 UCN 224215353UCN-224215353-U

Abstract

The utility model belongs TO the technical field of incinerator waste gas treatment, and particularly relates TO an online ash removal TO direct-fired incinerator waste gas treatment system. The device comprises a TO direct-fired incinerator, an exhaust gas preheater and a sound wave ash removal device, wherein an oxidation chamber is arranged in the TO direct-fired incinerator, an ash collecting hopper is arranged at the bottom of the oxidation chamber, the exhaust gas preheater is arranged at the top of the TO direct-fired incinerator, a shell side inlet of the exhaust gas preheater is directly communicated with a flue gas outlet of the TO direct-fired incinerator, the shell side outlet is connected TO a rear-end dust remover, a tube side is arranged in the exhaust gas preheater, an inlet of the tube side is connected with an exhaust gas source through an exhaust gas blower, an outlet of the tube side is communicated TO a combustion area of the TO direct-fired incinerator through an air inlet pipeline, and the sound wave ash removal device is arranged on a shell of the exhaust gas preheater and is used for stripping accumulated ash attached TO the outer wall of the tube side through sound wave high-frequency vibration. The utility model realizes high-efficiency online ash removal, and ensures heat exchange efficiency and continuous operation of equipment.

Inventors

WU TINGTING
LEI SHUGANG

Assignees

武汉时泰环保科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250605

Claims (8)

1. An online deashing TO direct combustion formula incinerator exhaust treatment system, characterized by comprising: the TO direct-fired incinerator is internally provided with an oxidation chamber, and the bottom of the oxidation chamber is provided with at least one ash collecting hopper; The system comprises a TO direct-fired incinerator, an exhaust gas preheater, a tube side, an exhaust gas blower, a gas inlet pipeline, a gas outlet pipeline, a gas inlet pipeline and a gas outlet pipeline, wherein the TO direct-fired incinerator is arranged at the top of the TO direct-fired incinerator; and the at least one sound wave ash removing device is arranged on the exhaust gas preheater shell and is used for stripping accumulated ash attached to the outer wall of the tube side through sound wave high-frequency vibration.
2. The online ash removal TO direct-fired incinerator exhaust gas treatment system according TO claim 1, wherein the acoustic ash removal device comprises an acoustic sound generator and a horn mouth linked with the acoustic sound generator, the acoustic sound generator is located on the outer wall of the exhaust gas preheater shell, and the horn mouth is located on the inner wall of the exhaust gas preheater shell.
3. The online ash removal TO direct-fired incinerator exhaust gas treatment system according TO claim 2, wherein a plurality of sound wave sounders are symmetrically distributed on the outer wall of the exhaust gas preheater shell, and one sound wave sounder controls two horn mouths in a linkage mode.
4. The on-line ash removal TO direct combustion incinerator exhaust gas treatment system according TO claim 1, characterized in that a first thermal resistor is installed on a pipe of which an inlet is connected TO an exhaust blower, and a second thermal resistor is installed on an air intake pipe connected TO an outlet of the pipe.
5. The on-line ash removal TO direct combustion incinerator exhaust gas treatment system according TO claim 1, characterized in that a third thermal resistor is installed on a pipeline of the exhaust gas preheater, the shell side outlet of which is connected TO the back-end dust collector, and a thermocouple is installed inside the oxidation chamber.
6. The online deashing TO direct fired incinerator exhaust treatment system of claim 1, wherein a differential pressure transmitter is installed between the shell side inlet and the shell side outlet of the exhaust gas preheater for monitoring the flue gas flow resistance in the exhaust gas preheater housing.
7. The online deashing TO direct-fired incinerator exhaust gas treatment system according TO claim 1, wherein the TO direct-fired incinerator combustion system comprises a combustor, a gas safety valve group and a combustion fan; the burner is positioned below the oxidation chamber, and a burner is arranged above the burner; The combustion-supporting fan is connected to the combustor and used for conveying combustion-supporting air; the gas safety valve group is connected to the burner, and natural gas enters the burner through the gas safety valve group.
8. The online ash removal TO direct-fired incinerator exhaust gas treatment system according TO claim 1, wherein a plurality of ash collecting hoppers are uniformly distributed at the bottom of the oxidation chamber, and a star-shaped ash discharging valve is arranged at the bottom of each ash collecting hopper.

Description

Online deashing TO direct-fired incinerator exhaust treatment system Technical Field The utility model belongs TO the technical field of incinerator waste gas treatment, and particularly relates TO an online ash removal TO direct-fired incinerator waste gas treatment system. Background The incineration treatment technology has become the first choice method for treating organic waste gases such as silane because of its high efficiency and thoroughness, wherein a direct combustion incinerator (TO) and a regenerative incinerator (RTO) are two main technologies. Compared with RTO, the TO direct-fired incinerator has simple structure, is not easy TO be blocked by silicon dioxide (SiO 2) powder generated by combustion, and has more applicability in silane waste gas treatment. However, the TO system still has the following key problems that firstly, ash is deposited in a hearth, in silicon dioxide particles generated by burning silane waste gas, larger particles are settled TO the bottom of the hearth under the action of gravity, and long-term accumulation needs TO be manually cleaned by stopping the furnace periodically, so that equipment is frequently stopped, and the operation continuity is poor. 2. The preheater is blocked, namely, the non-settled fine particles enter the shell pass of the exhaust gas preheater along with high-temperature flue gas and are adhered to the outer wall of the heat exchange tube, so that the heat exchange efficiency is obviously reduced, and the ash removal of the traditional shell-and-tube heat exchanger is carried out after the shutdown and the temperature reduction, so that the heat recovery capability is seriously affected. 3. The operation and maintenance cost is high, the existing ash removal mode depends on manual operation, the labor intensity is high, the heat energy waste and the production interruption are caused by shutdown, and the comprehensive operation and maintenance cost is high. Although the RTO technology can partially alleviate the ash deposition problem by the alternate operation of the heat accumulator, the equipment is complex, the investment is high, the tolerance to high silicon dust is poor, and the long-term stability requirement of silane waste gas treatment is difficult to meet. Therefore, how TO realize high-efficiency online ash removal in a TO direct-fired incinerator, ensure heat exchange efficiency and continuous operation of equipment becomes a technical problem TO be solved in the field. Disclosure of utility model Aiming at the technical problems in the prior art, the utility model provides an online ash removal TO direct-fired incinerator waste gas treatment system, which realizes efficient online ash removal and ensures heat exchange efficiency and continuous operation of equipment. The technical scheme for solving the technical problems is as follows: an online deashing TO direct combustion formula incinerator exhaust treatment system includes: the TO direct-fired incinerator is internally provided with an oxidation chamber, and the bottom of the oxidation chamber is provided with at least one ash collecting hopper; The system comprises a TO direct-fired incinerator, an exhaust gas preheater, a tube side, an exhaust gas blower, a gas inlet pipeline, a gas outlet pipeline, a gas inlet pipeline and a gas outlet pipeline, wherein the TO direct-fired incinerator is arranged at the top of the TO direct-fired incinerator; and the at least one sound wave ash removing device is arranged on the exhaust gas preheater shell and is used for stripping accumulated ash attached to the outer wall of the tube side through sound wave high-frequency vibration. On the basis of the technical scheme, the utility model can be improved as follows. Further, the sound wave ash removal device comprises a sound wave sounder and a horn mouth linked with the sound wave sounder, wherein the sound wave sounder is positioned on the outer wall of the exhaust gas preheater shell, and the horn mouth is positioned on the inner wall of the exhaust gas preheater shell. Further, the sound wave generators are symmetrically distributed on the outer wall of the exhaust gas preheater shell, and one sound wave generator controls the two horn mouths in a linkage mode. Further, a first thermal resistor is installed on a pipeline of the inlet of the tube side connected to the exhaust blower, and a second thermal resistor is installed on the air inlet pipeline connected with the outlet of the tube side. Further, a third thermal resistor is arranged on a pipeline of the shell side outlet of the exhaust gas preheater, which is connected to the rear-end dust remover, and a thermocouple is arranged in the oxidation chamber. Further, a differential pressure transmitter is arranged between the shell side inlet and the shell side outlet of the exhaust gas preheater and is used for monitoring the flow resistance of the flue gas in the exhaust gas preheater shell. Further, the combustion system of