CN219136696U - Molten pool type gasifier with automatic slag discharging function - Google Patents

Abstract

The utility model provides a molten pool type gasifier with an automatic slag discharging function, which comprises a molten pool type gasifier, wherein a synthetic gas outlet and a feeding pipe are arranged on the molten pool type gasifier; the plugging device also comprises a plugging mechanism, wherein the plugging mechanism comprises a plug which corresponds to the slag discharge port on the slag discharge pipe assembly and can move relative to the slag discharge port. According to the utility model, the movement of the plug is controlled through the telescopic device, so that the opening or closing of the slag discharging port on the slag discharging pipe assembly is controlled, the automatic slag discharging operation can be completed through the telescopic device, the trouble of manual slag discharging is omitted, and the potential safety hazard caused by manual slag discharging is eliminated.

Description

Molten pool type gasifier with automatic slag discharging function

Technical Field

The utility model relates to the technical field of energy, in particular to a molten pool gasifier with an automatic slag discharging function.

Background

In terms of the energy utilization of organic garbage solid waste and biomass waste, compared with the traditional process, the molten iron bath gasification is a more advanced process for converting harmful waste into low-carbon energy. The molten iron bath gasification is to blow organic solid waste particles into molten iron liquid at a high speed, blow gasification agent such as pure oxygen to carry out thorough treatment and conversion, and convert hydrocarbon into clean synthesis gas (carbon monoxide and hydrogen), which can be used as fuel gas or chemical synthesis, such as methanation to prepare natural gas, fischer-Tropsch synthesis to prepare gasoline, diesel oil and the like, while most of inorganic matters remain in slag floating on the surface to realize reduction, harmless and recycling treatment.

The utilization of a molten pool type gasifier to treat organic solid waste to generate synthesis gas or further produce hydrogen is an emerging energy technology at present. The method is characterized in that molten iron is pre-contained in a gasification furnace, organic solid waste is sent into the molten iron in various modes, oxygen is introduced, the cracking-gasification process of the organic solid waste is always completed in a liquid environment immersed at about 1500 ℃, the cracking-gasification process is quite rapid at high temperature, dioxin is not generated, heavy metals and oxides thereof (reduced) enter the molten iron or sink to the lower layer of the molten iron to be recycled, and the whole treatment process of the organic solid waste only needs to introduce oxygen (the incomplete combustion of carbon and oxygen is an exothermic reaction), and additional reheating is not needed, so that hydrogen-rich energy sources are prepared by low-cost and low-carbon emission.

In the process of treating organic solid waste, the molten bath gasifier forms a layer of slag liquid above the liquid level of molten iron, and as the treatment capacity increases, the slag liquid is accumulated more and thicker, and slag discharge is needed after the slag liquid is accumulated to a certain thickness, namely the slag liquid is discharged. The traditional slag discharging mode is to poke a slag discharging port on the side face of the gasification furnace manually, the height of the slag discharging port corresponds to the height of slag liquid, the slag liquid is discharged outwards from the slag discharging port, and after slag discharging is completed, the slag discharging port is blocked by a high-temperature-resistant blocking material.

The existing deslagging mode is time-consuming and labor-consuming, and has a large potential safety hazard.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a molten pool gasifier with an automatic slag discharging function.

The utility model aims at realizing the following technical scheme: a molten pool type gasifier with an automatic slag discharging function comprises a molten pool type gasifier, wherein a synthetic gas outlet and a feed pipe are arranged on the molten pool type gasifier, and a slag discharging pipe assembly with a heating function is arranged on the side surface of the molten pool type gasifier; the plugging device also comprises a plugging mechanism, wherein the plugging mechanism comprises a plug which corresponds to the slag discharge port on the slag discharge pipe assembly and can move relative to the slag discharge port.

Preferably, the plug is a graphite plug.

Preferably, the plugging mechanism further comprises a telescopic device for driving the plug to move.

Preferably, the telescopic device is an air cylinder, and the plug is connected to a piston rod of the air cylinder.

Preferably, the upper end of the molten pool gasifier is provided with a high-temperature camera, and the high-temperature camera is used for shooting the liquid level of slag liquid in the molten pool gasifier.

Preferably, the slag discharging pipe assembly comprises a graphite slag discharging pipe, the graphite slag discharging pipe is communicated with the inside of the molten pool type gasifier, and an induction coil for carrying out induction heating on the graphite slag discharging pipe is arranged on the outer side of the graphite slag discharging pipe.

Preferably, the induction coil is a cooled induction coil; when deslagging is carried out, the cooling type induction coil is electrified to carry out induction heating on the graphite deslagging pipe; when slag is not discharged, the cooling type induction coil is powered off and stops induction heating, and the cooling medium always carries out circulation cooling in the cooling type induction coil.

Preferably, a refractory material is filled between the induction coil and the graphite slag discharging pipe.

The beneficial effects of the utility model are as follows: according to the utility model, the movement of the plug is controlled through the telescopic device, so that the opening or closing of the slag discharging port on the slag discharging pipe assembly is controlled, the automatic slag discharging operation can be completed through the telescopic device, the trouble of manual slag discharging is omitted, and the potential safety hazard caused by manual slag discharging is eliminated.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure: 1. a feed pipe, 2, a high-temperature camera, 3, a furnace cover, 4, a synthesis gas outlet, 5, a molten pool gasifier, 6, a refractory layer, 7, an induction coil, 8 parts of graphite slag discharging pipe, 9 parts of graphite plug, 10 parts of cylinder, 11 parts of slag hopper, 12 parts of refractory material, 13 parts of molten iron, 14 parts of molten slag.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the utility model, fall within the scope of protection of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

As shown in fig. 1, the molten pool type gasifier with the automatic slag discharging function comprises a molten pool type gasifier 5 and a plugging mechanism, wherein molten iron 13 is filled in the molten pool type gasifier 5, and slag 14 is formed above the liquid surface of the molten iron 13. The molten pool gasifier 5 is provided with a synthesis gas outlet 4 and a feed pipe 1. Wherein the synthesis gas outlet 4 is arranged on the furnace cover 3 at the upper end of the molten pool type gasifier 5. The feed pipe 1 passes vertically through the furnace cover 3. The lower extreme of inlet pipe 1 stretches into in the molten iron 13, and the upper end of inlet pipe 1 is the feed inlet, and solid useless granule raw materials and oxygen all follow the feed inlet of inlet pipe 1 upper end and let in. The inner side of the molten pool type gasifier 5 is provided with a refractory layer 6.

The side surface of the molten pool type gasification furnace 5 is provided with a slag discharging pipe assembly with a heating function. The setting height of the slag discharging pipe assembly corresponds to the height of the slag liquid 14. The slag discharging pipe assembly comprises a graphite slag discharging pipe 8, the graphite slag discharging pipe 8 is communicated with the inside of the molten pool type gasifier 5, and an induction coil 7 for carrying out induction heating on the graphite slag discharging pipe is arranged on the outer side of the graphite slag discharging pipe 8. A refractory 12 is filled between the graphite slag discharging pipe 8 and the induction coil 7. One end of the graphite slag discharging pipe 8 is a slag discharging port.

In this application, the induction coil 7 is a cooled induction coil, the material of the induction coil is copper, the induction coil is of a hollow structure, and a cooling medium can be introduced into the induction coil. The induction heating is the prior mature technology, and the graphite slag discharging pipe can be subjected to induction heating after the induction coil 7 is electrified; the induction coil 7 is provided with a cooling medium inlet and a cooling medium outlet, and cooling can be performed on the induction coil 7 by introducing the cooling medium into the cooling medium inlet. When slag is discharged, the induction coil is electrified to perform induction heating on the graphite slag discharge pipe, and the slag liquid is prevented from being cooled and solidified in the graphite slag discharge pipe to cause the blockage of the graphite slag discharge pipe through heating; after the slag discharge is finished, the induction coil is powered off and stops heating, and the cooling medium always carries out circulating cooling on the cooling type induction coil. The cooling medium may be water.

The plugging mechanism comprises a telescopic device and a plug arranged on the telescopic device, the plug corresponds to a slag discharge port on the slag discharge pipe assembly and can move relative to the slag discharge port, and the plug is driven to move through the telescopic device. In the utility model, the plug is a graphite plug 9, and the graphite plug has good high temperature resistance. The diameter of the graphite plug 9 is the same as the inner diameter of the graphite slag discharging pipe 8, and one end of the graphite plug, which is close to the graphite slag discharging pipe 8, is cone-shaped. The telescopic device is an air cylinder 10, and the plug is arranged on a piston rod of the air cylinder 10.

The furnace cover 3 of the molten bath type gasifier 5 is provided with a high-temperature camera 2, and the high-temperature camera 2 is used for shooting the liquid level of slag liquid in the molten bath type gasifier.

In the normal state of the molten pool gasifier 5, a slag discharging port on the slag discharging pipe assembly is in a closed state, a piston rod on the cylinder is in a state of extending forwards, and a graphite plug is inserted into the graphite slag discharging pipe 8 to seal the graphite slag discharging pipe 8, so that slag liquid cannot be discharged; in this state, a cooling medium is continuously introduced into the induction coil 7, and the cooling medium is used for cooling the induction coil 7, so that the damage caused by the overhigh temperature of the induction coil is avoided; when the high-temperature camera 2 shoots that slag liquid in the molten bath type gasifier 5 is higher than the graphite slag discharging pipe 8 and slag is required to be discharged, the induction coil is electrified, the graphite slag discharging pipe is subjected to induction heating through the induction coil, the cylinder drives the graphite plug to be pulled out of the graphite slag discharging pipe 8, slag liquid flows out of the graphite slag discharging pipe and falls into a slag bucket below the graphite slag discharging pipe, after slag discharging is completed, the graphite plug is reinserted into the graphite slag discharging pipe and plugs the graphite slag discharging pipe, the induction coil 7 stops electrifying, and a cooling medium is continuously introduced into the induction coil 7 to cool the induction coil.

According to the utility model, the movement of the plug is controlled through the telescopic device, so that the opening or closing of the slag discharging port on the slag discharging pipe assembly is controlled, the automatic slag discharging operation can be completed through the telescopic device, the trouble of manual slag discharging is omitted, and the potential safety hazard caused by manual slag discharging is eliminated.

The present utility model is not limited to the above-described preferred embodiments, and any person who can obtain other various products under the teaching of the present utility model, however, any change in shape or structure of the product is within the scope of the present utility model, and all the products having the same or similar technical solutions as the present application are included.

Claims (8)

1. The molten pool type gasifier with the automatic slag discharging function comprises a molten pool type gasifier, wherein a synthetic gas outlet and a feed pipe are arranged on the molten pool type gasifier; the plugging device also comprises a plugging mechanism, wherein the plugging mechanism comprises a plug which corresponds to the slag discharge port on the slag discharge pipe assembly and can move relative to the slag discharge port.

2. The molten bath gasifier with automatic slag discharging function according to claim 1, wherein said plug is a graphite plug.

3. The molten bath gasifier with automatic slag discharging function as recited in claim 1, wherein said plugging mechanism further comprises a telescopic device for driving the plug to move.

4. The molten pool gasifier with automatic slag discharging function according to claim 3, wherein the telescopic device is a cylinder, and the plug is connected to a piston rod of the cylinder.

5. The molten bath type gasifier with the automatic slag discharging function according to claim 1, wherein a high-temperature camera is arranged at the upper end of the molten bath type gasifier and is used for shooting the liquid level of slag liquid in the molten bath type gasifier.

6. The molten bath gasifier with automatic slag discharging function according to any one of claims 1 to 5, wherein the slag discharging pipe assembly comprises a graphite slag discharging pipe, the graphite slag discharging pipe is communicated with the inside of the molten bath gasifier, and an induction coil for induction heating of the graphite slag discharging pipe is arranged on the outer side of the graphite slag discharging pipe.

7. The gasifier of the molten bath with automatic slag discharging function according to claim 6, wherein said induction coil is a cooled induction coil; when deslagging is carried out, the cooling type induction coil is electrified to carry out induction heating on the graphite deslagging pipe; when slag is not discharged, the cooling type induction coil is powered off and stops induction heating, and the cooling medium always carries out circulation cooling in the cooling type induction coil.

8. The molten bath type gasifier with automatic slag discharging function according to claim 6, wherein a refractory is filled between the induction coil and the graphite slag discharging pipe.

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