Refractory brick type gasification furnace reaction chamber forced cooling deslagging device
By installing the boiler water coil at the bottom of the gasifier reaction chamber and attaching refractory materials, the problem of easy damage to the channel port is solved, and the long-term stable operation of the gasifier and the improvement of the energy utilization rate are achieved.
Patent Information
- Application Number
- CN202421819905.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The channel port connected to the bottom of the gasifier reaction chamber and the downward pipe are easily damaged, resulting in the safety and stability of the device and long-term operation of the device being threatened.
The boiler water coil is installed at the bottom of the gasifier reaction chamber, and refractory material is attached to its surface. The channel port temperature is reduced through boiler water cooling, forming a solid slag layer protection brick plate and channel port.
The maintenance cycle of the channel port at the bottom of the gasifier reaction chamber is extended, the damage to the channel port is avoided, the stable operation of the gasifier is ensured for the long-term stable operation and the energy utilization rate is improved.
Smart Images
Figure CN223150519U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of refractory brick gasifiers, and particularly relates to a forced cooling slag discharger for the reaction chamber of a refractory brick type gasifier. Background Art
[0002] The reaction chamber of the gasifier equipped with refractory bricks is the core of the material reaction in the gasifier. Due to the violent reaction of the materials in the gasifier, high-temperature and high-pressure substances are generated, causing damage phenomena such as scouring and thermal erosion to the refractory bricks of the gasifier. The reactant residues in the form of molten state pass through the bottom channel opening of the gasifier reaction chamber along with the high-temperature and high-pressure synthesis gas, and enter the quench chamber through the downcomer connected to the channel, and are further cooled after entering the quench chamber. The high-temperature and high-pressure gas generated by the material reaction in the gasifier and the molten reactant residues cause more serious scouring and thermal erosion to the refractory bricks at the lower part of the gasifier reaction chamber and the refractory bricks at the connection channel opening between the reaction chamber and the downcomer. The channel opening at the bottom of the gasifier reaction chamber connected to the downcomer is a key component of the gasifier. If it is damaged, it will directly threaten the safe, stable and long-term operation of the device.
[0003] During the operation of four-nozzle water coal slurry gasifiers and other refractory brick gasifiers such as Texaco and multi-component slurries, there are damages to the refractory bricks at the connection channel opening between the bottom of the gasifier reaction chamber and the downcomer of the quench chamber. The flow direction of the high-temperature liquid reactant residues and the high-temperature gas flow changes, resulting in increased scouring of some areas of the downcomer or the attachment of molten reactant residues to the inner surface of the downcomer, causing uneven local heating of the downcomer, deformation or burning through. Summary of the Utility Model
[0004] In view of the technical problem of the easy damage of the channel opening at the bottom of the gasifier reaction chamber connected to the downcomer, a forced cooling slag discharger for the reaction chamber of a refractory brick type gasifier is provided.
[0005] The technical means adopted by the utility model are as follows:
[0006] A forced cooling slag discharger for the reaction chamber of a refractory brick type gasifier, the refractory brick type gasifier includes a reaction chamber and a quench chamber located below the reaction chamber. The reaction chamber is communicated with the downcomer in the quench chamber through a channel opening provided at the bottom; a brick support plate is installed on the inner side wall of the bottom of the reaction chamber, and the brick support plate is located above the channel opening;
[0007] The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier includes a boiler water coil installed at the inner bottom of the reaction chamber; the boiler water coil is a horn-shaped coil arranged from the top of the brick support plate to the channel opening and along the inclined direction of the brick support plate; the large diameter end of the boiler water coil is located at the top of the brick support plate, and the small diameter end is located at the channel opening;
[0008] Silicon carbide ramming material is filled between the boiler water coil and the brick support plate; a layer of refractory material is attached to the surface of the boiler water coil, the main component of the refractory material is silicon carbide, and the refractory material is fixed to the surface of the boiler water coil by stainless steel claw nails;
[0009] The boiler water coil is provided with a water inlet and a water return port located at the small diameter end and the large diameter end of the boiler water coil respectively; the boiler water coil is connected to a heat exchange boiler, the heat exchange boiler is provided with a boiler water supply pipe and a boiler water return pipe, and the water inlet and the water return port are respectively connected to the boiler water supply pipe and the boiler water return pipe; the heat exchange boiler is used to circulate and supply cooled boiler water to the boiler water coil; a heat exchange medium for exchanging heat with the boiler water to cool the boiler water is provided in the heat exchange boiler.
[0010] Further, the distance between two adjacent stainless steel claw nails is 20 mm, the diameter of the stainless steel claw nail is 6 mm, and the length is 15 mm.
[0011] Further, the material of the boiler water coil is S31603 stainless steel, the diameter is 65 mm, and the pressure rating is SCH80.
[0012] Further, the boiler water coil is provided with two water inlets and two water return ports.
[0013] Further, the heat exchange boiler can control the pressure of the cooled boiler water delivered to the boiler water coil to be 0.5 Mpa to 1.0 Mpa higher than the operating pressure of the refractory brick type gasifier.
[0014] Further, flow measurement elements and temperature measurement elements for monitoring the flow rate and temperature of the boiler water are respectively provided on the boiler water supply pipe and the boiler water return pipe, and a flow rate and temperature control valve group is also provided on the boiler water supply pipe for controlling the temperature of the cooled boiler water delivered to the boiler water coil to be 180 °C.
[0015] Further, the heat exchange medium in the heat exchange boiler is demineralized water.
[0016] Further, the heat exchange boiler exchanges heat through the shell side, including a boiler water chamber and a demineralized water chamber; the water inlet of the boiler water chamber is connected to the boiler water return pipe, and the water outlet is connected to the water inlet of the demineralized water chamber; the water outlet of the demineralized water chamber is connected to the water inlet of the boiler water circulation pump, and the steam outlet is connected to the steam network; the water outlet of the boiler water circulation pump is connected to the boiler water supply pipe;
[0017] The boiler water inside the boiler water chamber can be transported to the demineralized water chamber and cooled by heat exchange with the demineralized water in the demineralized water chamber. The steam generated after the demineralized water exchanges heat can be transported to the steam pipe network for reuse, and the cooled boiler water is pressurized by the boiler water circulation pump and then transported to the boiler water coil.
[0018] Further, a boiler water buffer tank is arranged between the water outlet of the boiler water coil and the heat exchange boiler.
[0019] Compared with the prior art, the utility model has the following advantages:
[0020] The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier provided by the utility model arranges boiler water coils on the brick support plate at the bottom of the gasifier reaction chamber and at the connection channel opening between the bottom of the gasifier reaction chamber and the downcomer, and attaches refractory materials to the boiler water coils. When high-temperature gas and molten reactant residues pass through the connection channel opening between the bottom of the reaction chamber and the downcomer during the operation of the gasifier, due to the heat transfer of the cooling boiler water in the boiler water coil, part of the heat at the channel opening is carried away. Since the temperature of the molten reactant residues decreases, a solid slag layer with a certain thickness will be formed on the surface of the refractory materials, realizing the forced cooling protection of the brick support plate and the channel opening, reducing and avoiding the damage of the refractory bricks at the channel opening, the change of the flow direction of the high-temperature liquid reactant residues and the high-temperature gas flow, the aggravation of the erosion of some areas of the downcomer or the attachment of the molten reactant residues to the inner surface of the downcomer, resulting in local uneven heating, deformation or burning-through accidents of the downcomer, thereby prolonging the maintenance period of the bottom channel opening of the reaction chamber of the refractory brick type gasifier and achieving the purpose of long-term stable operation of the refractory brick type gasifier.
[0021] Based on the above reasons, the utility model can be widely promoted in the field of refractory brick gasifiers. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0023] Figure 1 It is a schematic structural diagram of the forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier described in the present utility model.
[0024] Figure 2 For Figure 1 The enlarged view of part A in
[0025] 1. Refractory brick type gasifier; 2. Reaction chamber; 3. Downcomer; 4. Channel opening; 5. Brick supporting plate; 6. Boiler water coil; 7. Boiler water coil inlet pipe; 8. Boiler water coil return pipe; 9. Refractory material; 10. Silicon carbide ramming mix; 11. Heat exchange boiler; 12. Boiler water circulation pump; 13. Boiler water buffer tank. Detailed implementation manners
[0026] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. The description of at least one exemplary embodiment is actually only illustrative and in no way restrictive of the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0028] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments of the present utility model. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of the described features, steps, operations, devices, components, and / or their combinations.
[0029] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods and devices should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary statements, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the protection scope of the present utility model: the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0031] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the figure for the device. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.
[0032] In addition, it should be noted that the use of terms such as "first", "second" etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings. Therefore, it should not be construed as a limitation to the protection scope of the present utility model.
[0033] Embodiment 1
[0034] As Figure 1-2 shown, the present utility model provides a forced cooling slag discharger for a refractory brick type gasifier reaction chamber. The refractory brick type gasifier 1 includes a reaction chamber 2 and a quench chamber located below the reaction chamber 2. The reaction chamber 2 is communicated with a downcomer 3 in the quench chamber through a channel opening 4 provided at the bottom; a brick support plate 5 is installed on the inner side wall of the bottom of the reaction chamber 2, and the brick support plate 5 is located above the channel opening 4;
[0035] The forced cooling slag discharger of the refractory brick type gasifier reaction chamber includes a boiler water coil 6 installed at the inner bottom of the reaction chamber 2; the boiler water coil 6 is a horn-shaped coil arranged from the top of the brick support plate 5 to the channel opening 4 along the inclined direction of the brick support plate 5; the large diameter end of the boiler water coil 6 is located at the top of the brick support plate 5, and the small diameter end is located at the channel opening 4;
[0036] There is silicon carbide ramming material 10 filled between the boiler water coil 6 and the brick support plate 5; a layer of refractory material 9 is attached to the surface of the boiler water coil 6, the main component of the refractory material 9 is silicon carbide, and the refractory material 9 is fixed on the surface of the boiler water coil 6 by stainless steel claw nails;
[0037] The boiler water coil 6 is provided with a water inlet 7 and a water return port 8 respectively located at the small diameter end and the large diameter end of the boiler water coil 6; the boiler water coil 6 is connected to a heat exchange boiler 11, the heat exchange boiler 11 is provided with a boiler water supply pipe and a boiler water return pipe, and the water inlet 7 and the water return port 8 are respectively connected to the boiler water supply pipe and the boiler water return pipe; the heat exchange boiler 11 is used to circulate and supply cooled boiler water to the boiler water coil 6; there is a heat exchange medium in the heat exchange boiler 11 for exchanging heat with the boiler water to cool the boiler water.
[0038] Further, on the surface of the side of the boiler water coil 6 facing the inside of the reaction chamber 2, the refractory material is fixed on the surface of the boiler water coil 6 by a number of the stainless steel claw nails perpendicular to the inner section plane of the boiler water coil 6 with a spacing of 20 mm; the distance between two adjacent stainless steel claw nails is 20 mm, the diameter of the stainless steel claw nail is 6 mm, and the length is 15 mm.
[0039] Further, the material of the boiler water coil 6 is S31603 stainless steel, the diameter is 65 mm, and the pressure rating is SCH80.
[0040] Further, the boiler water coil 6 is provided with two water inlets 7 and two water return ports 8.
[0041] Further, the water inlet 7 and the water return port 8 pass through the brick support plate 5, the bottom furnace wall of the reaction chamber 2 and the side wall of the quench chamber in sequence, and are respectively connected to the boiler water supply pipe and the boiler water return pipe.
[0042] Further, the heat exchange boiler 11 uses a non-phase change closed cycle method to circulate and supply cooled boiler water to the boiler water coil 6.
[0043] Furthermore, the heat exchange boiler 11 can control the pressure of the cooled boiler water delivered to the boiler water coil 6 to be 0.5 Mpa to 1.0 Mpa higher than the operating pressure of the refractory brick gasifier 1.
[0044] Furthermore, a flow measurement element for monitoring the flow rate of the boiler water and a temperature measurement element for monitoring the temperature of the boiler water are respectively provided on the boiler water supply pipe and the boiler water return pipe. A flow rate and temperature control valve group is also provided on the boiler water supply pipe to control the temperature of the cooled boiler water delivered to the boiler water coil 6 to be 180 °C.
[0045] Furthermore, the heat exchange medium in the heat exchange boiler 11 is desalted water. After heat exchange, the desalted water can generate high-quality steam for reuse. Therefore, by providing the heat exchange boiler 11, the present utility model can recover part of the heat for reuse, improving the energy utilization rate.
[0046] Furthermore, the heat exchange boiler 11 exchanges heat through the shell side, including a boiler water chamber and a desalted water chamber; the water inlet of the boiler water chamber is connected to the boiler water return pipe, and the water outlet is connected to the water inlet of the desalted water chamber; the water outlet of the desalted water chamber is connected to the water inlet of the boiler water circulation pump 12, and the steam outlet is connected to the steam pipe network; the water outlet of the boiler water circulation pump 12 is connected to the boiler water supply pipe;
[0047] The boiler water inside the boiler water chamber can be delivered to the desalted water chamber and cooled by the desalted water inside the desalted water chamber through heat exchange. The steam generated after the desalted water exchanges heat can be delivered to the steam pipe network for reuse. The cooled boiler water is pressurized by the boiler water circulation pump 12 and then delivered to the boiler water coil 6. The boiler water circulation pump 12 controls the pressure of the cooled boiler water delivered to the boiler water coil 6 to be 0.5 Mpa to 1.0 Mpa higher than the operating pressure of the refractory brick gasifier 1.
[0048] When the present utility model is in use, the cooled boiler water provided by the heat exchange boiler 11 enters the boiler water coil 6 through the boiler water supply pipe via the water inlet 7. The boiler water coil 6 can continuously and forcibly cool the brick support plate 5 and the channel opening 4 by using the cooled boiler water. After heat exchange in the boiler water coil 6, the boiler water returns to the boiler water return pipe from the water return port 8, and then flows back into the heat exchange boiler 11 to exchange heat with the desalted water inside the heat exchange boiler 11. After heat exchange, the desalted water becomes steam and enters the steam pipe network for reuse. The temperature of the boiler water drops after heat exchange and is pressurized by the boiler water circulation pump 12 and delivered to the boiler water supply pipe for the next round of cyclic use.
[0049] Further, it further includes a standby boiler water circulation pump. The water outlet of the demineralized water chamber is connected to the water inlet of the standby boiler water circulation pump, and the water outlet of the standby boiler water circulation pump is connected to the boiler water supply pipe. When the boiler water circulation pump 12 is operating, the standby boiler water circulation pump is in a shutdown state, and its water inlet and water outlet are in a closed state. The standby boiler water circulation pump has a self-starting function. When the boiler water circulation pump 12 stops operating, the standby boiler water circulation pump can automatically start to convey boiler water. Both the boiler water circulation pump 12 and the standby boiler water circulation pump are equipped with dual power supplies and can be used as spares for each other.
[0050] Further, the circulation volume of the cooled boiler water provided by the heat exchange boiler can be adjusted according to the load selection of the refractory brick gasifier 1. For example, for a 3000-ton / day-class refractory brick gasifier, the circulation volume of the cooled boiler water is set to 55 - 65m 3 / h.
[0051] Further, a boiler water buffer tank 13 is provided between the water outlet 8 of the boiler water coil 6 and the heat exchange boiler. The boiler water buffer tank 13 is used to buffer boiler water. The boiler water buffer tank 13 is provided with a liquid level measuring element for monitoring the liquid level, a high-pressure boiler water feeding system for supplying boiler water, and a high-pressure nitrogen pressure stabilizing system for pressure stabilization.
[0052] Further, the heat exchange boiler 11 is provided with a medium-pressure nitrogen protection system.
[0053] The forced cooling slag discharger for the reaction chamber of the refractory brick gasifier provided by the present utility model avoids the direct scouring and thermal erosion of the channel opening connecting the bottom of the gasifier reaction chamber and the downcomer by the high-temperature gas and molten reactant residues in the gasification reaction chamber, thereby preventing accidents such as the shutdown of the gasification device and threatening the safe operation of other equipment such as the gasifier in the device in severe cases. It greatly extends the operation cycle of the gasifier reaction chamber, with good economic benefits and device safety. At the same time, part of the heat in the heat exchange process is recovered to produce steam with better quality, improving the energy utilization rate.
[0054] The channel opening connecting the bottom of the reaction chamber of the refractory brick gasifier to the downcomer is a component that guides the high-temperature gas and molten reactant residues in the gasification chamber of the gasifier into the quench chamber for further cooling. It is a key component of the gasifier. If it is damaged, it will directly threaten the safety and long-term stable operation of the device and equipment. The present utility model improves the heat insulation method at the channel opening at the bottom of the reaction chamber of the gasifier. By arranging boiler water coils on the brick support plate at the bottom of the reaction chamber of the gasifier and at the channel opening connecting the bottom of the reaction chamber of the gasifier to the downcomer, and attaching refractory materials to the boiler water coils, the channel opening connecting the bottom of the reaction chamber of the refractory brick gasifier to the downcomer and its periphery are set in a way of coil water cooling. When the high-temperature gas and molten reactant residues pass through the channel opening connecting the bottom of the reaction chamber to the downcomer during the operation of the gasifier, due to the heat transfer of the cooling boiler water in the boiler water coils, a part of the heat at the channel opening is taken away. Since the temperature of the molten reactant residues decreases, a solid slag layer of a certain thickness will be formed on the surface of the refractory materials, realizing the forced cooling protection of the brick support plate and the channel opening, reducing and avoiding the occurrence of accidents such as the damage of the refractory bricks at the channel opening, the change of the flow direction of the high-temperature liquid reactant residues and the high-temperature gas flow, the intensification of the erosion of some areas of the downcomer, or the attachment of the molten reactant residues to the inner surface of the downcomer, resulting in uneven local heating of the downcomer, deformation or burnout. Furthermore, the maintenance period of the channel opening at the bottom of the reaction chamber of the refractory brick gasifier is extended, achieving the purpose of long-term stable operation of the refractory brick gasifier.
[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A forced cooling slag discharger for the reaction chamber of a refractory brick gasifier. The refractory brick gasifier includes a reaction chamber and a quench chamber located below the reaction chamber. The reaction chamber is communicated with a downcomer in the quench chamber through a channel opening provided at the bottom. A brick support plate is installed on the inner bottom wall of the reaction chamber, and the brick support plate is located above the channel opening. It is characterized in that the forced cooling slag discharger for the reaction chamber of the refractory brick gasifier includes a boiler water coil installed at the inner bottom of the reaction chamber. The boiler water coil is a horn-shaped coil arranged from the top of the brick support plate to the channel opening along the inclined direction of the brick support plate. The large-diameter end of the boiler water coil is located at the top of the brick support plate, and the small-diameter end is located at the channel opening. Silicon carbide ramming material is filled between the boiler water coil and the brick support plate. A layer of refractory material is attached to the surface of the boiler water coil. The main component of the refractory material is silicon carbide, and the refractory material is fixed on the surface of the boiler water coil by stainless steel claw nails. The boiler water coil is provided with a water inlet and a water return port located at the small-diameter end and the large-diameter end of the boiler water coil respectively. The boiler water coil is connected to a heat exchange boiler. The heat exchange boiler is provided with a boiler water supply pipe and a boiler water return pipe. The water inlet and the water return port are respectively connected to the boiler water supply pipe and the boiler water return pipe. The heat exchange boiler is used to circulate and supply cooled boiler water to the boiler water coil. There is a heat exchange medium in the heat exchange boiler for exchanging heat with the boiler water to cool the boiler water.
2. The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, On the side surface of the boiler water coil facing the inside of the reaction chamber, the boiler water coil is fixedly installed on the brick support plate by a number of the stainless steel claw nails perpendicular to the inner section plane of the boiler water coil with a spacing of 20 mm. The diameter of the stainless steel claw nail is 6 mm and the length is 15 mm.
3. The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, The material of the boiler water coil is S31603 stainless steel, with a diameter of 65 mm and a pressure rating of SCH80.
4. The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, The boiler water coil is provided with two water inlets and two water return ports.
5. The forced cooling slag discharger for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, The heat exchange boiler can control the pressure of the cooled boiler water delivered to the boiler water coil to be 0.5 Mpa to 1.0 Mpa higher than the operating pressure of the refractory brick gasifier.
6. The forced cooling slag discharge device for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, Flow measurement elements and temperature measurement elements for monitoring the flow rate and temperature of the boiler water are respectively provided on the boiler water supply pipe and the boiler water return pipe. A flow rate and temperature control valve group is also provided on the boiler water supply pipe for controlling the temperature of the cooled boiler water delivered to the boiler water coil to be 180 °C.
7. The forced cooling slag discharging device for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, The heat exchange medium in the heat exchange boiler is demineralized water.
8. The forced cooling slag discharging device for the reaction chamber of the refractory brick type gasifier according to claim 7, characterized in that, The heat exchange boiler exchanges heat through the shell side, including a boiler water chamber and a demineralized water chamber. The water inlet of the boiler water chamber is connected to the boiler water return pipe, and the water outlet is connected to the water inlet of the demineralized water chamber. The water outlet of the demineralized water chamber is connected to the water inlet of a boiler water circulation pump, and the steam outlet is connected to a steam pipe network. The water outlet of the boiler water circulation pump is connected to the boiler water supply pipe. The boiler water inside the boiler water chamber can be transported to the demineralized water chamber and cooled by heat exchange with the demineralized water in the demineralized water chamber. The steam generated after the heat exchange of the demineralized water can be transported to the steam pipe network for reuse, and the cooled boiler water is pressurized by the boiler water circulation pump and then transported to the boiler water coil.
9. The forced cooling slag discharging device for the reaction chamber of the refractory brick type gasifier according to claim 1, characterized in that, A boiler water buffer tank is arranged between the water outlet of the boiler water coil and the heat exchange boiler.