阅读说明：本技术 一种用于煤气化炉的强制连续排渣装置 (Forced continuous slag discharging device for coal gasifier ) 是由 汤广斌 刘旭 王恩伟 李冬 于 2019-12-02 设计创作，主要内容包括：本发明公开一种用于煤气化炉的强制连续排渣装置,包括炉体和控制装置,所述炉体下方设有排渣装置,排渣装置包括接料斗和排渣锁斗,接料斗上方与炉体固定连接,下方与排渣锁斗进料口相连接；排渣锁斗的出料口设有密封装置,密封装置包括插板阀和密封板,密封板与插板阀相连接；排渣锁斗内部设有料位检测装置,底部出料口上方设有喷淋装置；插板阀、料位检测装置和喷淋装置均与控制装置相连接。本发明提供一种排渣效率高、有效减少扬尘、自动化程度高的用于煤气化炉的强制连续排渣装置。(The invention discloses a forced continuous slag discharging device for a coal gasifier, which comprises a furnace body and a control device, wherein a slag discharging device is arranged below the furnace body, the slag discharging device comprises a receiving hopper and a slag discharging lock hopper, the upper part of the receiving hopper is fixedly connected with the furnace body, and the lower part of the receiving hopper is connected with a feeding hole of the slag discharging lock hopper; a sealing device is arranged at a discharge hole of the slag discharge lock hopper, and comprises a gate valve and a sealing plate, and the sealing plate is connected with the gate valve; a material level detection device is arranged in the deslagging lock hopper, and a spraying device is arranged above a discharge port at the bottom; the gate valve, the material level detection device and the spraying device are all connected with the control device. The invention provides a forced continuous slag discharging device for a coal gasifier, which has high slag discharging efficiency, effectively reduces dust raising and has high automation degree.)

1. The utility model provides a arrange sediment device in succession in force for coal gasifier, includes furnace body and controlling means, its characterized in that: a slag discharging device is arranged below the furnace body, the slag discharging device comprises a receiving hopper and a slag discharging lock hopper, the upper part of the receiving hopper is fixedly connected with the furnace body, and the lower part of the receiving hopper is connected with a feeding hole of the slag discharging lock hopper; a sealing device is arranged at a discharge hole of the slag discharge lock hopper, and comprises a gate valve and a sealing plate, and the sealing plate is connected with the gate valve; a material level detection device is arranged in the deslagging lock hopper, and a spraying device is arranged above a discharge port at the bottom; the gate valve, the material level detection device and the spraying device are all connected with the control device.

2. The forced continuous slag discharging device for a coal gasifier according to claim 1, wherein: the spraying device comprises a water supply pipeline, a nozzle communicated with the water supply pipeline and a spraying opening formed in the side wall of the bottom of the slag discharging lock hopper, and the nozzle penetrates through the spraying opening and extends into the slag discharging lock hopper; and a water supply control valve is also arranged on the water supply pipeline.

3. The forced continuous slag discharging device for a coal gasifier according to claim 2, wherein: the sealing plate is a ceramic fiber plate or a glass fiber plate or a fluororubber plate.

4. The forced continuous slag discharging device for a coal gasifier according to claim 3, wherein: the discharge hole of the slag discharge lock hopper inclines outwards.

5. The forced continuous slag discharging device for a coal gasifier according to claim 4, wherein: four slag discharge devices are arranged.

Technical Field

The invention relates to the field of fuel gasification, in particular to a forced continuous slag discharging device for a coal gasifier.

Background

At present, a fixed bed gasification furnace and a moving bed gasification furnace mostly adopt a double-lock bucket structure to discharge slag, continuous slag discharge cannot be realized, most of the fixed bed gasification furnace and the moving bed gasification furnace need to be shut down to discharge slag, the retention time of slag in the gasification furnace is long, the effective operation time of the gasification furnace is short, the slag discharge is in-situ manual operation, in-situ dust raising is large, and the gasification efficiency is low. Therefore, the efficient, environment-friendly and automatic continuous slag discharging device of the gasification furnace is developed, the effective running time and gasification efficiency of the gasification furnace are improved, and the problem to be solved in the industry is urgently solved.

Disclosure of Invention

In order to solve the defects of the prior art, the invention provides the forced continuous slag discharging device for the coal gasifier, which has high slag discharging efficiency, effectively reduces dust and has high automation degree.

In order to achieve the purpose, the invention adopts the technical scheme that: a forced continuous slag discharging device for a coal gasifier comprises a furnace body and a control device, wherein a slag discharging device is arranged below the furnace body, the slag discharging device comprises a receiving hopper and a slag discharging lock hopper, the upper part of the receiving hopper is fixedly connected with the furnace body, and the lower part of the receiving hopper is connected with a feeding hole of the slag discharging lock hopper; a sealing device is arranged at a discharge hole of the slag discharge lock hopper, and comprises a gate valve and a sealing plate, and the sealing plate is connected with the gate valve; a material level detection device is arranged in the deslagging lock hopper, and a spraying device is arranged above a discharge port at the bottom; the sealing device, the material level detection device and the spraying device are all connected with the control device.

Preferably, the spraying device comprises a spraying opening, a nozzle, a water supply control valve and a water supply pipeline which are arranged on the side wall of the bottom of the deslagging lock hopper.

Preferably, the sealing plate may be a ceramic fiber plate or a glass fiber plate or a fluorine rubber plate.

Preferably, the discharge hole of the slag discharge lock hopper is inclined outwards by a certain angle.

Preferably, four slag discharging devices are arranged below the furnace body.

The invention has the following beneficial effects:

1. compared with the traditional slag discharging device, the invention can realize the slag discharging without stopping the furnace, the effective operation time of the gasification furnace is improved, and the slag discharging efficiency is obviously improved.

2. The discharge hole of the slag discharge lock hopper is inclined outwards for a certain angle, so that slag discharge operation is facilitated.

3. The sealing plate is connected with the gate valve, and the opening and closing of the sealing plate can be controlled through the action of the gate valve. The sealing plate can be a ceramic fiber plate, a glass fiber plate or a fluororubber plate, so that the air tightness of the sealing device is effectively guaranteed, and the service life of the sealing device can be obviously prolonged.

4. The nozzle runs through and sprays the mouth and stretch into inside row sediment lock fill, is provided with water supply control valve on the water supply pipe, through the play water of water supply control valve control nozzle, spray set when unloading is cooling to the exhaust lime-ash, can also effectively eliminate the raise dust that the lime-ash produced when unloading, and the environmental protection is safety again.

5. The four slag discharging devices can discharge slag simultaneously or independently; the sealing device, the material level detection device and the spraying device are controlled by the coordination of the control device, and the whole process is automatically operated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a plan view of the furnace body of the present invention.

Detailed Description

As shown in the figure 1-2, the forced continuous slag discharging device for the coal gasification furnace comprises a furnace body 1 and a control device, wherein a rotary grate 10 is arranged at the bottom in the furnace body 1, four slag discharging devices which are symmetrically arranged are arranged at the outer edge below the furnace body 1, and ash slag formed after the molded coal or lump coal is gasified in the gasification furnace is discharged into the slag discharging devices nearly under the driving of the rotation of the rotary grate 10. The slag discharging device comprises a receiving hopper 3 and a slag discharging lock hopper 5, wherein the upper part of the receiving hopper 3 is fixedly connected with the furnace body 1, and the lower part of the receiving hopper is connected with a feed inlet of the slag discharging lock hopper 5. The discharge hole of the slag discharge lock hopper 5 is inclined outwards for a certain angle, so that slag discharge operation is facilitated. The discharge hole of the slag discharge lock hopper 5 is provided with a sealing device 8, the sealing device 8 comprises a gate valve and a sealing plate, the gate valve is connected with the sealing plate and controlled by a control device, and the gate valve controls the opening and closing of the sealing plate after receiving a signal of the control device, so that the automatic slag discharge operation of the slag discharge lock hopper can be realized. The sealing plate can adopt a ceramic fiber plate or a glass fiber plate or a fluororubber plate, so that the service life of the sealing plate can be obviously prolonged while the air tightness of the device is effectively ensured. The slag discharging lock hopper 5 is internally provided with a material level detection device 9 which can monitor the material level in the slag discharging lock hopper 5 in real time. The bottom discharge mouth top is equipped with spray set, and spray set includes water supply pipe 2, the nozzle 6 that is linked together with water supply pipe 2 and arranges the mouth 7 that sprays of seting up on 5 bottom lateral walls of sediment lock fill, and inside nozzle 6 runs through and sprays mouth 7 and stretch into sediment lock fill 5, is provided with water supply control valve 4 on the water supply pipe 2, through the play water of water supply control valve 4 control nozzle 6. When unloading, the spraying device can effectively eliminate the raised dust generated when the ash slag is unloaded while cooling the discharged ash slag, and is environment-friendly and safe. The material level detection device 9 and the water supply control valve 4 of the spraying device are both connected with the control device.

When the forced continuous slag discharging device is used for forced continuous slag discharging operation, ash residues on an ash residue layer are discharged into the slag discharging device nearby under the action of the rotary grate 10, the material level detection device 9 feeds detected data back to the control device, the control device controls the gate valve to open the sealing plate when a set value is reached, the ash residues are discharged through the discharge port, meanwhile, the spraying device is regulated and controlled by the control device, the water supply control valve 4 is opened, water is sprayed into the slag discharging lock hopper 5 through the nozzle 6, and raised dust generated during ash residue discharging is eliminated while the discharged ash residues are cooled; when the material level in the slag discharge lock hopper 5 is reduced to a set value, the gate valve is automatically closed by receiving a signal of the control device, and the spraying device is synchronously closed. According to the material level condition of the slag discharging lock hopper 5, the four slag discharging devices can discharge slag simultaneously or independently, and the whole process realizes automatic operation; particularly, compared with the traditional slag discharging device, the invention can realize the slag discharging without stopping the furnace, improve the effective operation time of the gasification furnace, obviously improve the slag discharging efficiency and greatly improve the slag discharging site environment.