Coal gas fine desulfurization agent sorting equipment

Abstract

The utility model discloses a coal gas fine desulfurization reagent sorting equipment, including dry desulfurization tower, dry desulfurization tower is provided with coal gas import and coal gas export, is provided with coal gas passageway cylinder in the desulfurization tower, and the desulfurization reagent is filled around coal gas passageway cylinder, and the desulfurization reagent filling mouth is set to dry desulfurization tower top, and the desulfurization reagent discharge port is set to the dry desulfurization tower lower end lateral wall around, a plurality of desulfurization reagent discharge ports are connected reagent deslagging machine through the discharge pipeline respectively, and the outlet of reagent deslagging machine is connected hopper elevator, and the output of hopper elevator upper end is connected desulfurization reagent filling mouth of dry desulfurization tower top, and reagent deslagging machine is used for screening the desulfurization reagent of discharging from desulfurization reagent discharge port, and the unreacted reagent of screening is sent into hopper elevator, and is sent into desulfurization reagent filling mouth of dry desulfurization tower top again through hopper elevator.

Description

Technical Field

[0001] This utility model relates to a coal gas desulfurization agent sorting equipment. Background Technology

[0002] The sulfur-containing substances in blast furnace gas are mainly composed of organic and inorganic sulfur, with a total sulfur concentration of 100–200 mg / Nm³. 3 Inorganic sulfur is mainly H2S, while organic sulfur is mainly carbonyl sulfide (COS), with a concentration of approximately 100–200 mg / Nm³. 3 H2S concentration at 100 mg / Nm 3 Within.

[0003] The current technology for fine desulfurization of blast furnace gas is a dry desulfurization process, which involves blast furnace gas pretreatment + organic sulfur conversion + desulfurization. This process uses reagents within a reaction tower to treat the blast furnace gas for fine desulfurization. However, incomplete reactions occur between the reagents and the gas within the reaction tower. The challenge we face is how to improve desulfurization efficiency while extending the reagents' lifespan and further reducing operating costs. Therefore, it is essential to conduct research on reagent sorting equipment for fine desulfurization of blast furnace gas. Summary of the Invention

[0004] The purpose of this invention is to provide a coal gas desulfurization reagent sorting equipment that achieves ultra-low emissions from the desulfurization system while significantly reducing operating costs, enabling the system to save energy and reduce carbon emissions.

[0005] The purpose of this utility model is achieved as follows: A coal gas desulfurization agent sorting device includes a dry desulfurization tower. A coal gas inlet and outlet are located on the lower end of the tower's sidewall. A coal gas channel cylinder is located inside the tower, with its upper end closed and its lower end connected to the outlet. Desulfurization agents are filled around the gas channel cylinder. Screen holes are provided on the sidewall of the gas channel cylinder. Coal gas entering from the inlet is desulfurized by the desulfurization agents and then flows through the screen holes into the gas channel cylinder, exiting from the outlet. A desulfurization agent filling port is located at the top of the dry desulfurization tower. [Further details about the filling process are needed for accurate translation.] Multiple desulfurization agent discharge ports are provided on the end side wall, and each discharge port is equipped with a discharge gate. The multiple desulfurization agent discharge ports are respectively connected to a desulfurization agent slag remover through discharge pipelines. The outlet of the desulfurization agent slag remover is connected to a hopper elevator. The output port at the upper end of the hopper elevator is connected to the desulfurization agent filling port at the top of the dry desulfurization tower. The desulfurization agent slag remover is used to screen the desulfurization agent discharged from the desulfurization agent discharge ports, send the screened unreacted agent into the hopper elevator, and then send it back into the desulfurization agent filling port at the top of the dry desulfurization tower through the hopper elevator.

[0006] The solution further includes: the chemical slag removal machine includes a spiral auger conveying section and a rotating screen section connected thereto. The spiral auger conveying section is equipped with multiple injection ports, which are respectively connected to multiple desulfurization agent discharge ports of multiple dry desulfurization towers. The output port of the rotating screen section is connected to a hopper elevator.

[0007] The solution further includes: there are 6 desulfurization agent discharge ports, which are evenly distributed around the dry desulfurization tower; there are 2 agent slag removal machines, each with 3 injection ports, wherein the 3 desulfurization agent discharge ports are connected to the 3 injection ports of one agent slag removal machine.

[0008] The solution further includes: the sorting equipment also includes a PLC programmable controller, the discharge gate is an electromagnetic valve, the electromagnetic valve, the chemical slag remover and the hopper elevator are respectively connected to the PLC programmable controller, and the PLC programmable controller controls the discharge of desulfurization chemicals and the slag removal of the dry desulfurization tower.

[0009] The beneficial effects of this utility model are: (1) By adding intelligent sorting equipment for coal gas desulfurization agents, the agents in the tower are sorted and reorganized regularly, and the powdered agents are screened and filtered out. At the same time, the agents in the upper and lower layers are "exchanged", which solves the problem of insufficient reaction between coal gas and agents at the source, extends the service life of agents by 20% to 30%, and further reduces operating costs. (2) Optimize the main components of the intelligent drug sorting equipment so that it can adapt to the characteristics of the drug, reduce the damage to the drug during operation, and adjust the filling time of the drug according to production needs. The intelligent drug sorting equipment is reliable and simple to operate, minimizes the risk of safety production, and saves about 10% of labor.

[0010] This invention enables the process system to operate more safely, intelligently, efficiently, and economically, achieving ultra-low emissions from the desulfurization system while significantly reducing operating costs, thus enabling the system to save energy and reduce carbon emissions.

[0011] The present invention will be further explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the distribution of the reagent slag removal machine of this utility model. Figure 1 The top view of the connecting pipe is omitted. Detailed Implementation

[0013] A coal gas desulfurization reagent sorting equipment, such as Figure 1 and Figure 2As shown, the sorting equipment includes a dry desulfurization tower 1. A gas inlet 101 and a gas outlet 102 are located on the lower side of the sidewall of the dry desulfurization tower. A gas channel cylinder 2 is located in the center of the desulfurization tower 1. The upper end of the gas channel cylinder is closed, and the lower end is connected to the gas outlet. A desulfurization agent 3, which is granular and will pulverize after contact with the gas for desulfurization, is filled around the gas channel cylinder 2. The gas channel cylinder 2 has screen holes on its sidewall. The gas flow entering from the gas inlet 101 is desulfurized by the desulfurization agent and then flows through the screen holes into the gas channel cylinder 2, exiting from the gas outlet 102. A desulfurization agent filling port 103 is located at the top of the dry desulfurization tower 1. Multiple desulfurization agent discharge ports 104 are provided around the lower side wall of the dry desulfurization tower. Each discharge port 104 is equipped with a discharge gate. The multiple desulfurization agent discharge ports 104 are connected to a desulfurization agent slag remover 5 through a discharge pipeline 4. The outlet of the desulfurization agent slag remover 5 is connected to a hopper elevator 6. The output port of the upper end of the hopper elevator 6 is connected to the desulfurization agent filling port 103 at the top of the dry desulfurization tower. The desulfurization agent slag remover 6 is used to screen the desulfurization agent discharged from the desulfurization agent discharge ports 104, send the screened unreacted agent into the hopper elevator, and then send it back into the desulfurization agent filling port 103 at the top of the dry desulfurization tower 1 through the hopper elevator 6.

[0014] Wherein: the chemical slag removal machine 5 includes a spiral auger conveying section 501 and a rotating screen section 502 connected thereto. The spiral auger conveying section 501 is provided with multiple injection ports 501-1, which are respectively connected to multiple desulfurization agent discharge ports 104 of multiple dry desulfurization towers. The output port of the rotating screen section 502 is connected to the hopper elevator 5.

[0015] To achieve automated control: the sorting equipment also includes a PLC programmable controller (not shown), the discharge gate is an electromagnetic valve, the electromagnetic valve, the chemical slag remover and the hopper elevator are respectively connected to the PLC programmable controller, and the discharge of desulfurization chemicals and slag removal of the dry desulfurization tower are controlled by the PLC programmable controller.

[0016] In this embodiment: there are 6 desulfurization agent discharge ports, which are evenly distributed around the dry desulfurization tower. There are two agent slag removal machines, each of which has 3 injection ports 501-1. The 3 desulfurization agent discharge ports are connected to the 3 injection ports 501-1 of one agent slag removal machine.

[0017] In this embodiment: the dry desulfurization tower 1 contains dry desulfurization agents and has a radial tower structure. The gas flow direction is the tower diameter direction. The discharge pipe 4 connected to the discharge port 104 of the dry desulfurization tower 1 is a rubber hose. The inner lining consists of two or more layers of rubber resistant to oil-based or water-based hydraulic fluids, a fabric reinforcement layer, a spiral skeleton layer, and a weather-resistant rubber outer covering. The connection method is flange connection. At the same time, the outer covering is checked for bubbles, sponges, impurities, improper assembly, and other visible defects that may affect the use.

[0018] In this embodiment, the chemical slag remover 5 utilizes a reducer to drive the spiral auger and rotating screen. Chemical particles are laterally propelled into the rotating screen (the screen mesh size is controlled at 4-5 mesh) by the rotating spiral blades of the spiral auger. The spiral blades penetrate the rotating screen section, and the pulverized chemical is separated by the rotating screen and enters the bottom, exiting the equipment through the bottom discharge pipe. Chemical particles larger than 4mm are conveyed to the end of the spiral auger via the spiral blades, then recycled through the discharge port and fed into the hopper elevator 6, which re-feeds them into the desulfurization chemical filling port 103 at the top of the dry desulfurization tower 1, returning to the tower for adsorption. This equipment features a high-level alarm and remotely outputs a 4-20mA signal, allowing remote control of the feed rate and reducer rotation speed to ensure timely chemical discharge. One desulfurization tower is equipped with two chemical slag removers 5. Each chemical slag remover 5 is designed with three feed inlets, and the feed and discharge inlets are designed for quick disconnection and switching. This equipment is designed to be mobile, allowing for rapid switching when other desulfurization towers require a separation device.

[0019] In this embodiment, the hopper elevator 6 is positioned at -1.200m above the ground near the dry desulfurization tower, and is equipped with a control box or electrical control cabinet. The equipment enclosure must be properly sealed to prevent material leakage. The motor is a new type of high-efficiency energy-saving motor, achieving a Level 1 energy efficiency rating.

[0020] The bucket elevator features overload protection, misalignment protection, anti-stagnation protection (interlocking control of the bucket elevator and chemical feed rate), and material blockage protection. The buckets are made of PVC material to prevent chemical powdering during system operation. The bucket elevator includes a maintenance platform with guardrails and ladders. The maintenance platform must be wide enough to accommodate personnel passage and equipment placement during maintenance, and its load-bearing capacity must meet the safety requirements under the specified load.

Claims

1. A coal gas desulfurization agent sorting equipment, comprising a dry desulfurization tower, a coal gas inlet and a coal gas outlet provided on the lower end of the side wall of the dry desulfurization tower, a coal gas channel cylinder provided in the middle of the desulfurization tower, the upper end of the coal gas channel cylinder being closed and the lower end connected to the coal gas outlet, desulfurization agent being filled around the coal gas channel cylinder, and screen holes provided on the side wall of the coal gas channel cylinder, the coal gas flow entering from the coal gas inlet is desulfurized by the desulfurization agent and then enters the coal gas channel cylinder through the screen holes and flows out from the coal gas outlet, a desulfurization agent filling port is provided at the top of the dry desulfurization tower, and multiple desulfurization agent discharge ports are provided around the lower side wall of the dry desulfurization tower, each discharge port being equipped with a discharge gate, characterized in that... The multiple desulfurization agent discharge ports are connected to a desulfurization agent slag remover via discharge pipelines. The outlet of the desulfurization agent slag remover is connected to a hopper elevator. The output port at the top of the hopper elevator is connected to the desulfurization agent filling port at the top of the dry desulfurization tower. The desulfurization agent slag remover is used to screen the desulfurization agents discharged from the desulfurization agent discharge ports, and sends the screened unreacted agents into the hopper elevator, and then back into the desulfurization agent filling port at the top of the dry desulfurization tower via the hopper elevator.

2. The sorting equipment according to claim 1, characterized in that, The chemical deslagging machine includes a spiral auger conveying section and a rotating screen section connected thereto. The spiral auger conveying section is equipped with multiple injection ports, which are respectively connected to multiple desulfurization agent discharge ports of multiple dry desulfurization towers. The output port of the rotating screen section is connected to a hopper elevator.

3. The sorting equipment according to claim 2, characterized in that, There are 6 desulfurization agent discharge ports, which are evenly distributed around the dry desulfurization tower. There are 2 agent slag removal machines, each with 3 injection ports. The 3 desulfurization agent discharge ports are connected to the 3 injection ports of one agent slag removal machine.

4. The sorting equipment according to claim 1 or 3, characterized in that, The sorting equipment also includes a PLC programmable controller, the discharge gate is an electromagnetic valve, and the electromagnetic valve, the chemical slag remover and the hopper elevator are respectively connected to the PLC programmable controller. The PLC programmable controller controls the discharge of desulfurization chemicals and the slag removal of the dry desulfurization tower.

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