Waste gas smoke abatement system for graphite purification
By combining a multi-stage dust removal tower and a washing and purification circular tower system with a wet electrostatic precipitator, the problem of incomplete treatment of graphite purification waste gas was solved, achieving complete purification and direct emission of waste gas and protecting the environment.
Patent Information
- Application Number
- CN202422651591.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing graphite purification processes, the treatment of waste gas is incomplete, especially the purification of acidic dusty waste gas. Furthermore, the treated waste gas still requires further treatment of smoke and water vapor before it can be discharged, resulting in insufficient environmental protection.
A multi-stage dust removal tower and a washing and purification circular tower combination system is adopted to purify the exhaust gas through multiple cycles. Combined with the treatment of wet electrostatic precipitator, the exhaust gas is purified through multiple cycles and water vapor and dust removal are achieved.
It achieves complete purification of exhaust gas, and the qualified exhaust gas can be directly discharged, protecting the atmospheric environment and simplifying the exhaust gas treatment process.
Smart Images
Figure CN223641604U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of graphite purification equipment, and in particular to a waste gas smoke elimination system for graphite purification. Background Technology
[0002] The graphite purification process employs the chlorination roasting method. This method involves roasting fine graphite powder or specific petroleum coke at high temperature and in a specific atmosphere, followed by the introduction of chlorine gas to conduct a chemical reaction. During this process, relevant impurities are converted into gaseous or condensed chlorides and complexes that escape, thereby achieving the purpose of purifying graphite. This process requires the treatment of the generated waste gas. The discharged waste gas is acidic dust-containing waste gas emitted from the graphite purification furnace. Its characteristics include continuous discharge and relatively high concentration. Single purification treatment may not be able to thoroughly treat the acidic dust-containing waste gas, resulting in poor waste gas treatment effect. Furthermore, the treated waste gas still needs to undergo dust and water vapor treatment before it can be discharged. Utility Model Content
[0003] In view of this, the present invention provides a waste gas smoke elimination system for purifying graphite, which can purify the waste gas through multiple cycles, making the purification of the waste gas more thorough, thereby improving the waste gas treatment effect, and can also remove water vapor and dust in the waste gas.
[0004] The technical solution is: a waste gas smoke elimination system for purifying graphite, including a fan, an air inlet pipe, a dust removal component and a purification component. One of the three fans is connected to the air inlet pipe, the dust removal component is connected to the air inlet pipe, and the purification component is installed on the dust removal component.
[0005] Furthermore, the dust removal components include a primary horizontal dust removal tower, a secondary horizontal dust removal tower, a connecting pipe 1, an air inlet pipe 2, a water supply pipe, and a valve 1. The primary horizontal dust removal tower is fixedly connected to the air inlet pipe 1, which is internally connected to the primary horizontal dust removal tower. The primary horizontal dust removal tower is equipped with a connecting pipe 1, the other end of which is connected to the secondary horizontal dust removal tower. The secondary horizontal dust removal tower is equipped with an air inlet pipe 2, which is fixedly connected to one of the fans. Both the secondary and primary horizontal dust removal towers are equipped with water supply pipes, and the air inlet pipe 2 is equipped with a valve 1.
[0006] Furthermore, the purification components include a primary washing and purification tower, a secondary washing and purification tower, a circulating pump, a second connecting pipe, a liquid supply pipe, a second valve, a third air inlet pipe, a wet electrostatic precipitator, an exhaust pipe, and a waste liquid pipe. The primary washing and purification tower is connected to the second air inlet pipe. The primary washing and purification tower has a first connecting pipe, the other end of which is connected to the secondary washing and purification tower. The secondary washing and purification tower has a circulating pump, which is connected to the interior of the secondary washing and purification tower. The circulating pump is connected to the primary washing and purification tower via the second connecting pipe. A liquid supply pipe is provided between the primary and secondary washing and purification towers. The secondary washing and purification tower has a third air inlet pipe, which is fixedly connected to the last fan. A second valve is provided on the third air inlet pipe. The wet electrostatic precipitator is connected to the third air inlet pipe. The wet electrostatic precipitator has an exhaust pipe. A waste liquid pipe is provided between the primary horizontal dust collector and the secondary horizontal dust collector, and a waste liquid pipe is provided between the primary and secondary washing and purification towers.
[0007] The beneficial effects are as follows: In this utility model, after the exhaust gas is fully absorbed by the primary horizontal dust removal tower and the secondary horizontal dust removal tower, it is introduced into the series-connected primary and secondary washing and purification circular towers by one of the fans. In the primary and secondary washing and purification circular towers, the acidic exhaust gas and the absorbent liquid undergo multiple spray washing in the packing absorption section. After the acidic medium in the exhaust gas is neutralized by the absorbent liquid, the qualified tail gas is led out by the last fan and sent to the wet electrostatic precipitator to remove water vapor and dust. This allows for multiple cycles of purification of the exhaust gas, making the purification of the exhaust gas more thorough and thus improving the effect of exhaust gas treatment. At the same time, it can also remove water vapor and dust in the exhaust gas, making it easier for the exhaust gas to be directly discharged and protecting the atmospheric environment as much as possible. Attached Figure Description
[0008] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0009] Figure 2 This is a simplified process flow diagram of the present invention.
[0010] Reference numerals: 1_Level 1 horizontal dust collector, 2_Level 2 horizontal dust collector, 3_Fan, 4_Inlet pipe 1, 5_Connecting pipe 1, 6_Inlet pipe 2, 7_Water supply pipe, 8_Valve 1, 9_Level 1 washing and purification circular tower, 10_Level 2 washing and purification circular tower, 11_Circulating pump, 12_Connecting pipe 2, 13_Liquid supply pipe, 14_Valve 2, 15_Inlet pipe 3, 16_Wet electrostatic precipitator, 17_Exhaust pipe, 18_Waste liquid pipe. Detailed Implementation
[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0012] Example 1: A waste gas smoke elimination system for graphite purification, such as Figure 1 and Figure 2 As shown, it includes a fan, an air inlet pipe, a dust removal component, and a purification component. One of the three fans is connected to the air inlet pipe, the dust removal component is connected to the air inlet pipe, and the purification component is installed on the dust removal component.
[0013] Furthermore, the dust removal components include a primary horizontal dust removal tower, a secondary horizontal dust removal tower, a connecting pipe 1, an air inlet pipe 2, a water supply pipe, and a valve 1. The primary horizontal dust removal tower is fixedly connected to the air inlet pipe 1, which is internally connected to the primary horizontal dust removal tower. The primary horizontal dust removal tower is equipped with a connecting pipe 1, the other end of which is connected to the secondary horizontal dust removal tower. The secondary horizontal dust removal tower is equipped with an air inlet pipe 2, which is fixedly connected to one of the fans. Both the secondary and primary horizontal dust removal towers are equipped with water supply pipes, and the air inlet pipe 2 is equipped with a valve 1.
[0014] Furthermore, the purification components include a primary washing and purification tower, a secondary washing and purification tower, a circulating pump, a second connecting pipe, a liquid supply pipe, a second valve, a third air inlet pipe, a wet electrostatic precipitator, an exhaust pipe, and a waste liquid pipe. The primary washing and purification tower is connected to the second air inlet pipe. The primary washing and purification tower has a first connecting pipe, the other end of which is connected to the secondary washing and purification tower. The secondary washing and purification tower has a circulating pump, which is connected to the interior of the secondary washing and purification tower. The circulating pump is connected to the primary washing and purification tower via the second connecting pipe. A liquid supply pipe is provided between the primary and secondary washing and purification towers. The secondary washing and purification tower has a third air inlet pipe, which is fixedly connected to the last fan. A second valve is provided on the third air inlet pipe. The wet electrostatic precipitator is connected to the third air inlet pipe. The wet electrostatic precipitator has an exhaust pipe. A waste liquid pipe is provided between the primary horizontal dust collector and the secondary horizontal dust collector, and a waste liquid pipe is provided between the primary and secondary washing and purification towers.
[0015] In this invention, the waste gas is first drawn into a series of horizontal dust collectors (primary and secondary), with one fan drawing it in. Water flows into two supply pipes. After the waste gas is fully absorbed by the primary and secondary dust collectors, the valve is opened, and the waste gas is then introduced into a series of horizontal washing and purification towers (primary and secondary), with one fan drawing it in. The absorbent flows into a supply pipe, and a circulation pump draws the gas from the secondary washing and purification tower into a connecting pipe. The gas then returns to the primary washing and purification tower for further purification. Thus, the acidic waste gas and absorbent in the primary and secondary washing and purification towers undergo multiple spray washing processes in the packing absorption section, resulting in… The exhaust gas is purified more thoroughly. After the acidic medium in the exhaust gas is neutralized by the absorbent liquid, valve two is opened, and the qualified exhaust gas is led out by the last fan and sent to the wet electrostatic precipitator to remove water vapor and dust, basically achieving smokeless emission. At the same time, the waste liquid in the first-stage horizontal dust removal tower, the second-stage horizontal dust removal tower, the first-stage washing and purification circular tower, and the second-stage washing and purification circular tower is discharged to the wastewater through two waste liquid pipes. This allows the exhaust gas to be purified multiple times, making the purification more thorough and the exhaust gas treatment effect better. It can also remove water vapor and dust in the exhaust gas, making it easier to directly discharge the exhaust gas and protect the atmospheric environment as much as possible.
[0016] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A waste gas smoke elimination system for graphite purification, characterized in that, The system includes a fan, an air inlet pipe, a dust removal component, and a purification component. One of the three fans is connected to the air inlet pipe. The dust removal component is connected to the air inlet pipe, and the purification component is mounted on the dust removal component. The dust removal component includes a primary horizontal dust collector, a secondary horizontal dust collector, a connecting pipe, an air inlet pipe, a water supply pipe, and a valve. The primary horizontal dust collector is fixedly connected to the air inlet pipe, which is internally connected to the primary horizontal dust collector. The primary horizontal dust collector has a connecting pipe, the other end of which is connected to the secondary horizontal dust collector. The secondary horizontal dust collector has an air inlet pipe, which is fixedly connected to one of the fans. Both the secondary and primary horizontal dust collectors have water supply pipes, and the air inlet pipe has a valve. The purification component includes a primary washing and purification cylindrical tower, a secondary washing and purification cylindrical tower, a circulating pump, a connecting pipe, and a liquid supply system. The system includes a pipe, valve 2, air inlet pipe 3, wet electrostatic precipitator, exhaust pipe, and waste liquid pipe. Air inlet pipe 2 is connected to a primary washing and purification tower. The primary washing and purification tower has a connecting pipe 1, the other end of which is connected to a secondary washing and purification tower. The secondary washing and purification tower has a circulation pump connected to its interior. Connecting pipe 2 connects the circulation pump to the primary washing and purification tower. A liquid supply pipe connects the primary and secondary washing and purification towers. Air inlet pipe 3 is fixedly connected to the last fan. Valve 2 is installed on air inlet pipe 3, which is connected to the wet electrostatic precipitator. The wet electrostatic precipitator has an exhaust pipe. A waste liquid pipe connects the primary and secondary horizontal dust collectors. A waste liquid pipe also connects the primary and secondary washing and purification towers.