Dry slagging device of gasification furnace system

Abstract

The utility model discloses a gasification furnace system dry type slagging device relates to gasification furnace technical field, including main part subassembly: including gasification furnace slagging port, closure, airtight casing and conveyer belt, the closure is located in the bottom of gasification furnace slagging port, the airtight casing is located in the bottom of closure, the conveyer belt sets up in the bottom of airtight casing, and with, slagging assembly: set up in one side of gasification furnace slagging port, including feed inlet, discharge port, conveying part, tensioning piece and dust removal spare, through slagging assembly in water resources and energy consumption, adopt dry type slagging, need not to use water, and the water resource waste is eliminated, and the energy consumption is reduced greatly, in the bottom slag activity and comprehensive utilization aspect, dry type cooling makes the bottom slag not to soak, and the activity is retained, is favorable for the subsequent use as building material, soil conditioner etc, and widens the utilization approach, in the environmental protection level, does not produce the slag containing wastewater, avoids the pollution.

Description

Technical Field

[0001] This utility model relates to the field of gasifier technology, and in particular to a dry slag discharge device for a gasifier system. Background Technology

[0002] In the field of biomass gasification boilers, bottom ash treatment technology has been constantly evolving with the industry's development. Early on, on a small scale, ash removal was mostly done manually. Later, with the increase in boiler capacity and the rise of environmental protection and efficiency requirements, hydraulic ash conveying technology emerged. However, existing hydraulic ash conveying technology has many drawbacks. Against this backdrop, a new type of dry ash removal device and dry ash removal machine for gasification furnace systems has emerged, featuring numerous innovations in structural design and working principle.

[0003] Current hydraulic slag conveying technology faces a series of technical challenges. First, water waste and energy consumption are significant issues. Extensive water use to form slurry for conveying slag increases water costs and resource pressures in water-scarce regions. Furthermore, the power equipment, such as slurry pumps, consumes substantial amounts of electricity, increasing overall energy consumption. Second, reduced bottom slag activity and limited comprehensive utilization are problems. Soaking the bottom slag reduces its activity, affecting its subsequent use as a building material or soil conditioner. Chemical reactions between water and bottom slag components alter its physicochemical properties, further restricting its application. Third, serious wastewater treatment and environmental pollution are issues. Slag conveying generates large amounts of slag-containing wastewater, which is directly discharged and pollutes the environment. Wastewater treatment requires significant equipment investment, high operating costs, and extensive maintenance, and also necessitates the construction of treatment facilities. Fourth, it requires a large land area. Hydraulic slag conveying systems require the installation of slurry preparation equipment, conveying pipelines, and wastewater treatment facilities, limiting their application in boiler rooms with limited space. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing dry ash removal devices of gasifier systems, this utility model is proposed.

[0006] Therefore, the problem to be solved by this utility model is how to solve a series of technical problems existing in the current hydraulic slag conveying technology.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a dry ash removal device for a gasifier system, comprising,

[0008] The main components include a gasifier ash discharge port, a sealing element, a sealed housing, and a conveyor belt. The sealing element is located at the bottom of the gasifier ash discharge port, the sealed housing is disposed at the bottom of the sealing element, and the conveyor belt is disposed at the bottom of the sealed housing; and...

[0009] The slag discharge assembly, located on one side of the slag discharge port of the gasifier, includes a feed inlet, a discharge outlet, a conveying component, a tensioning component, and a dust removal component. The feed inlet is located at the top of the sealed shell and cooperates with the slag discharge port of the gasifier. The discharge outlet is located at the bottom of the sealed shell and cooperates with the conveyor belt. The conveying component is located in the inner cavity of the sealed shell. The tensioning component is located at the end of the conveying component and cooperates with the conveying component. The dust removal component is connected to one side of the sealed shell.

[0010] As a preferred embodiment of the dry slag discharge device for the gasifier system of this utility model, the sealing component includes a sealing plate disposed at the bottom of the slag discharge port of the gasifier, and a slag discharge hole groove is provided at the bottom of the slag discharge port of the gasifier.

[0011] As a preferred embodiment of the dry slag discharge device for the gasifier system described in this utility model, the top of the sealing plate is in contact with the slag discharge port of the gasifier, and the cross-sectional area of ​​the sealing plate is larger than the cross-sectional area of ​​the slag discharge slot.

[0012] As a preferred embodiment of the dry slag discharge device for the gasifier system of this utility model, the sealing component further includes an electric push rod fixedly connected to one side of the slag discharge port of the gasifier, a connecting plate fixedly connected to one side of the electric push rod, and a sealing plate fixedly connected to one side of the connecting plate.

[0013] As a preferred embodiment of the dry slag discharge device for the gasifier system of this utility model, the conveying component includes a conveying chain plate located in the inner cavity of the sealed shell, a circular ring chain is fixedly connected to the inner wall of the conveying chain plate, and a driving part is provided on one side of the circular ring chain.

[0014] As a preferred embodiment of the dry slag discharge device for the gasifier system of this utility model, the driving unit includes a driving sprocket meshing with the inner wall of the circular chain. There are multiple sets of driving sprockets, which are evenly distributed on the inner wall of the circular chain. A driving shaft is fixedly connected to the inner cavity of the driving sprocket. A driving motor is fixedly connected to one side of the sealed housing. The driving motor cooperates with the driving shaft near the slag discharge port of the gasifier.

[0015] As a preferred embodiment of the dry slag discharge device of the gasification furnace system of this utility model, the dust removal component includes a bag filter disposed on one side of the conveyor belt, one side of the bag filter is connected to an air inlet pipe, and one side of the air inlet pipe is connected to a sealed shell.

[0016] As a preferred embodiment of the dry slag discharge device for the gasification furnace system of this utility model, the dust removal component further includes a three-way pipe disposed on the surface of the air inlet pipe, and the bottom of the three-way pipe is connected to a cold air channel.

[0017] As a preferred embodiment of the dry slag discharge device for the gasification furnace system described in this utility model, one-way valves are provided on the surfaces of the cold air channel and the air inlet pipe.

[0018] As a preferred embodiment of the dry slag discharge device for the gasification furnace system of this utility model, a connecting arm is fixedly connected to one side of the cold air channel, and one side of the connecting arm is fixedly connected to the sealed shell.

[0019] The beneficial effects of this utility model are as follows: In terms of water resources and energy consumption, the dry slag discharge component eliminates the need for water, preventing water waste and significantly reducing energy consumption; in terms of bottom slag activity and comprehensive utilization, dry cooling prevents the bottom slag from being soaked in water, preserving its activity and facilitating its subsequent use as building materials, soil conditioners, etc., thus broadening its utilization pathways; in terms of environmental protection, it does not generate slag-containing wastewater, avoiding pollution, and the closed conveying combined with a high-efficiency bag filter achieves near-zero pollution; in terms of space utilization, the equipment is small in size, and its footprint is only related to the conveying distance, making it suitable for boiler rooms with limited space. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 This is a structural diagram of the dry slag removal device for the gasifier system.

[0022] Figure 2 This is a partial structural cross-sectional view of the sealed shell of the dry slag discharge device in the gasifier system.

[0023] Figure 3 This is another perspective view of the dry slag removal device of the gasifier system.

[0024] Figure 4 Dry ash removal device for gasification furnace system Figure 3 Enlarged view of region A in the middle.

[0025] In the diagram: 100, main component; 101, gasifier slag discharge port; 102, sealing component; 103, sealed shell; 104, conveyor belt; 200, slag discharge assembly; 201, feed inlet; 202, discharge outlet; 203, conveying component; 204, tensioning component; 205, dust removal component; 102a, sealing plate; 102b, electric push rod; 102c, connecting plate; 203a, conveyor chain plate; 203b, circular chain; 203c, drive unit; 203c-1, drive sprocket; 203c-2, drive shaft; 203c-3, drive motor; 205a, air inlet pipe; 205b, tee pipe; 205c, cold air passage; 205d, one-way valve; 205e, connecting arm; 205f, bag filter. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Reference Figures 1-4 It provides a dry ash removal device for gasifier systems, which includes an ash removal component 200. The ash removal component 200 addresses the drawbacks of hydraulic ash conveying and demonstrates multiple advantages.

[0030] Specifically, the main component 100 includes a gasifier ash discharge port 101, a sealing element 102, a sealed housing 103, and a conveyor belt 104. The sealing element 102 is located at the bottom of the gasifier ash discharge port 101, the sealed housing 103 is disposed at the bottom of the sealing element 102, and the conveyor belt 104 is disposed at the bottom of the sealed housing 103; and,

[0031] The slag discharge assembly 200 is located on one side of the slag discharge port 101 of the gasifier and includes a feed port 201, a discharge port 202, a conveyor 203, a tensioner 204, and a dust collector 205. The feed port 201 is located at the top of the sealed housing 103 and cooperates with the slag discharge port 101 of the gasifier. The discharge port 202 is located at the bottom of the sealed housing 103 and cooperates with the conveyor belt 104. The conveyor 203 is located in the inner cavity of the sealed housing 103. The tensioner 204 is located at the end of the conveyor 203 and cooperates with the conveyor 203. The dust collector 205 is connected to one side of the sealed housing 103.

[0032] The main component 100 constructs the basic physical structure for slag discharge. The gasifier slag discharge port 101 is the source of bottom slag discharge. The sealing component 102 can control the opening and closing of the slag discharge port. The sealed shell 103 plays an isolation role, preventing dust from overflowing and maintaining stable internal airflow. The conveyor belt 104 is responsible for finally sending out the cooled bottom slag.

[0033] The slag discharge assembly 200 realizes the functions of conveying, tensioning and dust removal of bottom slag. The feed inlet 201 allows the bottom slag to enter the sealed shell 103, the discharge outlet 202 is connected to the conveyor belt 104, the conveyor 203 is responsible for conveying the bottom slag in the shell, the tensioning component 204 ensures the stable operation of the conveyor 203, and the dust removal component 205 purifies the internal air and prevents dust pollution.

[0034] The tensioning element 204 is existing technology. By changing the position of the drive shaft 203c-2 through the tensioning element 204, the tension of the conveyor chain plate 203a can be adjusted. Those skilled in the art can set it according to the actual situation, which will not be elaborated here.

[0035] Specifically, the sealing component 102 includes a sealing plate 102a disposed at the bottom of the gasifier slag discharge port 101, and a slag discharge hole groove is provided at the bottom of the gasifier slag discharge port 101.

[0036] The sealing plate 102a is a key part of the sealing component 102. It is located at the bottom of the slag discharge port 101 of the gasifier. Its function is to seal the slag discharge port when not discharging slag, so as to prevent the leakage of hot gas, dust and other substances inside the gasifier.

[0037] Specifically, the top of the sealing plate 102a contacts the slag discharge port 101 of the gasifier, and the cross-sectional area of ​​the sealing plate 102a is larger than the cross-sectional area of ​​the slag discharge slot.

[0038] The sealing plate 102a has a larger cross-sectional area than the slag discharge slot, ensuring a good sealing effect and effectively preventing leakage of materials inside the gasifier, thus enhancing the sealing and stability of the device.

[0039] Specifically, the sealing component 102 also includes an electric push rod 102b fixedly connected to one side of the gasifier slag discharge port 101. A connecting plate 102c is fixedly connected to one side of the electric push rod 102b, and one side of the connecting plate 102c is fixedly connected to the sealing plate 102a.

[0040] The electric push rod 102b, the connecting plate 102c and the sealing plate 102a cooperate to drive the connecting plate 102c to control the movement of the sealing plate 102a by extending and retracting the electric push rod 102b, thereby realizing the automatic opening and closing of the slag discharge port and facilitating precise control of the slag discharge timing.

[0041] Specifically, the conveying component 203 includes a conveying chain plate 203a located in the inner cavity of the sealed housing 103, a circular chain 203b fixedly connected to the inner wall of the conveying chain plate 203a, and a drive unit 203c provided on one side of the circular chain 203b.

[0042] The conveyor chain plate 203a and the circular chain 203b constitute the main body of the conveyor 203. The conveyor chain plate 203a is used to carry the bottom slag, the circular chain 203b provides power transmission, and the drive unit 203c provides power for the entire conveying process.

[0043] Specifically, the drive unit 203c includes a drive sprocket 203c-1 that meshes with the inner wall of the circular chain 203b. There are multiple sets of drive sprockets 203c-1, which are evenly distributed on the inner wall of the circular chain 203b. A drive shaft 203c-2 is fixedly connected to the inner cavity of the drive sprocket 203c-1. A drive motor 203c-3 is fixedly connected to one side of the sealed housing 103. The drive motor 203c-3 cooperates with the drive shaft 203c-2 near the slag discharge port 101 of the gasifier.

[0044] The drive sprocket 203c-1 meshes with the inner wall of the circular chain 203b, transmitting the power of the drive motor 203c-3 to the circular chain 203b. The drive shaft 203c-2 is connected to the drive sprocket 203c-1. The multiple evenly distributed drive sprockets 203c-1 ensure the stability and uniformity of power transmission. The drive motor 203c-3 is installed on one side of the sealed housing 103, providing a power source for the operation of the conveyor chain plate 203a.

[0045] Specifically, the dust removal component 205 includes a bag filter 205f disposed on one side of the conveyor belt 104. One side of the bag filter 205f is connected to an air inlet pipe 205a, and one side of the air inlet pipe 205a is connected to the sealed housing 103.

[0046] The bag filter 205f and the inlet pipe 205a constitute the main part of the dust removal component 205. The inlet pipe 205a introduces the dust-laden gas in the sealed shell 103 into the bag filter 205f. The bag filter 205f filters and purifies the gas to prevent dust from being discharged to the outside. At the same time, the inlet pipe 205a also accelerates the speed at which external air enters the sealed shell 103, providing cooling air for bottom slag cooling.

[0047] Specifically, the dust removal component 205 also includes a three-way pipe 205b disposed on the surface of the air inlet pipe 205a, and the bottom of the three-way pipe 205b is connected to a cold air passage 205c.

[0048] The three-way pipe 205b and the cold air passage 205c further improve the function of the dust removal component 205. The cold air passage 205c can introduce outside cold air, which mixes with the dust-laden gas at the three-way pipe 205b to cool the dust-laden gas.

[0049] Specifically, one-way valves 205d are installed on the surfaces of both the air conditioning duct 205c and the air intake pipe 205a.

[0050] One-way valve 205d is installed on the surface of cold air passage 205c and air inlet pipe 205a to prevent gas backflow, ensure airflow in the predetermined direction, and ensure normal operation and function of the device.

[0051] Specifically, a connecting arm 205e is fixedly connected to one side of the cold air duct 205c, and one side of the connecting arm 205e is fixedly connected to the sealed housing 103.

[0052] The connecting arm 205e fixes the air conditioning channel 205c to the sealed housing 103, ensuring the stability of the air conditioning channel 205c and the accuracy of its installation position, so that it can work better with other components.

[0053] When the gasifier produces bottom ash that needs to be discharged, the electric push rod 102b extends and drives the sealing plate 102a away from the ash discharge slot at the bottom of the gasifier's ash discharge port 101 via the connecting plate 102c. The bottom ash falls from the gasifier's ash discharge port 101 through the feed port 201 onto the conveyor chain plate 203a inside the sealed housing 103. The drive motor 203c-3 starts and drives the drive sprocket 203c-1 to rotate via the drive shaft 203c-2. The drive sprocket 203c-1 meshes with the inner wall of the circular chain 203b, thereby driving the conveyor chain plate 203a to move within the sealed housing 103. The conveyor chain plate 203a transports the bottom ash towards the discharge port 202.

[0054] During the conveying process, outside cold air enters through the cold air channel 205c, passes through the three-way pipe 205b, and mixes with the dust-laden hot air drawn from the sealed shell 103, thus cooling the dust-laden hot air. On the other hand, the inlet pipe 205a accelerates the entry of outside cold air into the sealed shell 103 to exchange heat with the high-temperature bottom slag, reducing the temperature of the bottom slag. After the dust-laden hot air and the cooling air are mixed, they enter the bag filter 205f through the inlet pipe 205a. The bag filter 205f filters and purifies the mixed gas, and the purified gas is discharged. The one-way valve 205d ensures that the gas can only flow in the direction of entering from the cold air channel 205c and entering the bag filter 205f through the inlet pipe 205a, preventing backflow.

[0055] Finally, the cooled bottom ash is discharged from the discharge port 202 and falls onto the conveyor belt 104, which then sends it out for further processing. The whole process realizes dry, efficient and environmentally friendly transportation and cooling of the gasifier bottom ash.

[0056] This can overcome the problems of water waste and energy consumption, reduced bottom slag activity and limited comprehensive utilization, serious wastewater treatment and environmental pollution, and large land area required by current hydraulic slag conveying technology.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A dry ash removal device for a gasifier system, characterized in that: include, The main component (100) includes a gasifier ash discharge port (101), a sealing member (102), a sealed housing (103), and a conveyor belt (104). The sealing member (102) is located at the bottom of the gasifier ash discharge port (101), the sealed housing (103) is disposed at the bottom of the sealing member (102), and the conveyor belt (104) is disposed at the bottom of the sealed housing (103). The slag discharge assembly (200) is located on one side of the slag discharge port (101) of the gasifier and includes a feed port (201), a discharge port (202), a conveyor (203), a tensioner (204), and a dust collector (205). The feed port (201) is located at the top of the sealed shell (103) and cooperates with the slag discharge port (101) of the gasifier. The discharge port (202) is located at the bottom of the sealed shell (103) and cooperates with the conveyor belt (104). The conveyor (203) is located in the inner cavity of the sealed shell (103). The tensioner (204) is located at the end of the conveyor (203) and cooperates with the conveyor (203). The dust collector (205) is connected to one side of the sealed shell (103).

2. The dry ash removal device for the gasifier system as described in claim 1, characterized in that: The sealing component (102) includes a sealing plate (102a) disposed at the bottom of the gasifier slag discharge port (101), and a slag discharge hole groove is provided at the bottom of the gasifier slag discharge port (101).

3. The dry ash removal device for the gasifier system as described in claim 2, characterized in that: The top of the sealing plate (102a) is in contact with the slag discharge port (101) of the gasifier, and the cross-sectional area of ​​the sealing plate (102a) is larger than the cross-sectional area of ​​the slag discharge slot.

4. The dry ash removal device for the gasifier system as described in claim 3, characterized in that: The sealing component (102) also includes an electric push rod (102b) fixedly connected to one side of the gasifier slag discharge port (101). A connecting plate (102c) is fixedly connected to one side of the electric push rod (102b), and one side of the connecting plate (102c) is fixedly connected to the sealing plate (102a).

5. The dry ash removal device for the gasifier system as described in claim 4, characterized in that: The conveying component (203) includes a conveying chain plate (203a) located in the inner cavity of the sealed housing (103), and a circular ring chain (203b) is fixedly connected to the inner wall of the conveying chain plate (203a). A driving part (203c) is provided on one side of the circular ring chain (203b).

6. The dry ash removal device for the gasifier system as described in claim 5, characterized in that: The drive unit (203c) includes a drive sprocket (203c-1) that meshes with the inner wall of the circular chain (203b). There are multiple sets of drive sprockets (203c-1) that are evenly distributed on the inner wall of the circular chain (203b). A drive shaft (203c-2) is fixedly connected to the inner cavity of the drive sprocket (203c-1). A drive motor (203c-3) is fixedly connected to one side of the sealed housing (103). The drive motor (203c-3) cooperates with the drive shaft (203c-2) near the slag discharge port (101) of the gasifier.

7. The dry ash removal device for the gasifier system as described in claim 1, characterized in that: The dust removal component (205) includes a bag filter (205f) disposed on one side of the conveyor belt (104), and an air inlet pipe (205a) is connected to one side of the bag filter (205f), and one side of the air inlet pipe (205a) is connected to the sealed housing (103).

8. The dry ash removal device for the gasifier system as described in claim 7, characterized in that: The dust removal component (205) also includes a three-way pipe (205b) disposed on the surface of the air inlet pipe (205a), and the bottom of the three-way pipe (205b) is connected to a cold air passage (205c).

9. The dry ash removal device for the gasifier system as described in claim 8, characterized in that: One-way valves (205d) are provided on the surfaces of the cold air passage (205c) and the air inlet pipe (205a).

10. The dry ash removal device for the gasifier system as described in claim 9, characterized in that: A connecting arm (205e) is fixedly connected to one side of the cold air passage (205c), and one side of the connecting arm (205e) is fixedly connected to the sealed housing (103).

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