Air distribution equipment of biomass circulating fluidized bed gasifier

Abstract

The utility model belongs to the technical field of biomass circulating fluidized bed gasification furnaces, and particularly relates to air distribution equipment of a biomass circulating fluidized bed gasification furnace, which comprises a furnace body, three support legs arranged in an annular array are fixedly connected to the side surface of the furnace body, a biomass feeding pipe is fixedly connected to the inner wall of the furnace body, and a biomass discharging pipe is fixedly connected to the inner wall of the furnace body. A ventilation pipe is fixedly connected to the position, located on the lower side of the biomass feeding pipe, of the inner wall of the furnace body, a mounting cylinder is fixedly connected to the upper side of the ventilation pipe, a rotating rod is rotationally connected to the inner wall of the mounting cylinder and rotationally connected with the ventilation pipe, and a clamping hole is formed in the inner side wall of the mounting cylinder. According to the utility model, the air distribution disc and the air distribution holes are matched for use, so that air distribution treatment can be carried out on the gasification furnace, and the impact piece can oscillate the air distribution disc for use under the structures of the heat-resistant steel wire, the heat-resistant spring and the like, so that the air distribution holes are prevented from being blocked by biomass combustion particles, and normal circulation of oxygen is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of biomass circulating fluidized bed gasifiers, specifically to an air distribution device for a biomass circulating fluidized bed gasifier. Background Technology

[0002] A circulating fluidized bed gasifier is a highly efficient and clean biomass energy conversion device that converts biomass into combustible gas through high-temperature thermochemical conversion. The air distribution equipment is the core component of the circulating fluidized bed gasifier, which directly affects the fluidization quality, gasification efficiency and operational stability.

[0003] A utility model patent with patent authorization announcement number CN219363555U discloses an air distribution device for a biomass fluidized bed gasifier, including a furnace body. An installation ring is provided on the inner side of the furnace body. A reserved gap is provided between the outer side of the installation ring and the inner wall of the furnace body. An air plate is fixedly connected to the inner side of the installation ring. Multiple air holes are provided inside the air plate. Installation blocks are fixedly connected to the inner walls of the front and rear sides of the furnace body. A pin is slidably connected inside the installation block. A slider is fixedly connected to one side of the outer periphery of the pin. A spring is sleeved on the other side of the outer periphery of the pin. A positioning hole is provided inside the pin. A connecting sleeve is fixedly connected to the side of the installation block away from the furnace body.

[0004] However, the existing air distribution equipment for biomass circulating fluidized bed gasifiers also has certain shortcomings. Although the existing air distribution equipment for biomass circulating fluidized bed gasifiers adopts the setting of structures such as air distribution holes to complete the flow of oxygen, the air distribution holes are prone to blockage due to the influence of biomass particles after combustion. Utility Model Content

[0005] The purpose of this utility model is to provide an air distribution device for a biomass circulating fluidized bed gasifier, which solves the problem that although the existing biomass circulating fluidized bed gasifier air distribution devices adopt the setting of air distribution holes and other structures to complete the oxygen circulation process, the air distribution holes are prone to blockage after long-term use due to the influence of biomass combustion particles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a biomass circulating fluidized bed gasifier air distribution device, comprising a furnace body, three supporting legs arranged in a circular array fixedly connected to the side of the furnace body, a biomass feed pipe fixedly connected to the inner wall of the furnace body, a ventilation pipe fixedly connected to the inner wall of the furnace body below the biomass feed pipe, an installation cylinder fixedly connected to the upper side of the ventilation pipe, a rotating rod rotatably connected to the inner wall of the installation cylinder, the rotating rod being rotatably connected to the ventilation pipe, a locking hole being provided on the inner side wall of the installation cylinder, an elastic block being bonded to the inner wall of the rotating column of the rotating rod, a locking ball being bonded to the other end of the elastic block, the locking ball being slidably connected to the locking hole, and an air distribution mechanism being provided inside the furnace body.

[0007] Preferably, a handle is fixedly connected to the upper end of the rotating rod. The handle is made of silicone. The handle facilitates the rotation of the rotating rod, and the silicone material has a good skin-friendly feel.

[0008] Preferably, a sealing disc is fixedly sleeved on the outer side of the rotating rod, and the sealing disc is rotatably connected to the ventilation pipe. The flow diameter of the ventilation pipe can be adjusted by setting the sealing disc.

[0009] Preferably, multiple locking holes are provided, and the multiple locking holes are arranged in a ring array on the mounting cylinder. The locking holes can be used in conjunction with locking balls for locking.

[0010] Preferably, the air distribution mechanism includes an air distribution plate, which is fixedly connected to the inner wall of the furnace body. Air distribution holes are formed on the surface of the air distribution plate. A fixing rod is fixedly connected to the inner wall of the furnace body below the air distribution plate. A heat-resistant steel wire is slidably connected to the inner wall of the fixing rod. The horizontal part of the heat-resistant steel wire is slidably connected to the furnace body. An impact member is fixedly connected to the upper end of the heat-resistant steel wire, and the impact member contacts the air distribution plate. A heat-resistant spring is provided on the outer side of the vertical part of the heat-resistant steel wire. A guide post is fixedly connected to the inner wall of the furnace body below the fixing rod, and the guide post contacts the heat-resistant steel wire. The air distribution holes ensure normal oxygen flow. The structure of the heat-resistant steel wire and heat-resistant spring allows the impact member to vibrate the air distribution plate, preventing blockage of the air distribution holes.

[0011] Preferably, the impactor is spherical in shape and is made of heat-resistant steel ball. The presence of heat-resistant steel ball gives the impactor good durability.

[0012] Preferably, one end of the heat-resistant spring is welded to the impact member, and the other end of the heat-resistant spring is welded to the fixing rod. The heat-resistant spring can support the impact member.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model allows oxygen to be introduced into the inner wall of the furnace through the setting of the ventilation pipe. Driven by the rotating rod, the angle of the sealing plate can be adjusted, thereby adapting and regulating the amount of oxygen introduced. With the structure of the locking hole and the locking ball, the rotating rod can be limited, so that the sealing plate is in a stable state.

[0015] 2. This utility model, through the combined use of the air distribution plate and air distribution holes, can perform air distribution treatment on the gasifier. With the structure of heat-resistant steel wire and heat-resistant spring, the impacting parts can vibrate the air distribution plate to avoid the biomass combustion particles clogging the air distribution holes, so as to ensure the normal flow of oxygen. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 A schematic diagram of the internal structure of the furnace body;

[0018] Figure 3 For the present utility model Figure 1 Side sectional view;

[0019] Figure 4 For the present utility model Figure 2 Enlarged view of the air distribution mechanism;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of the sealing disc.

[0021] In the diagram: 1. Furnace body; 2. Support leg; 3. Biomass feed pipe; 4. Ventilation pipe; 5. Mounting cylinder; 6. Rotating rod; 7. Holding rod; 8. Sealing disc; 9. Clip hole; 10. Elastic block; 11. Clamping ball; 12. Air distribution mechanism; 121. Air distribution disc; 122. Air distribution hole; 123. Fixing rod; 124. Heat-resistant steel wire; 125. Impact component; 126. Heat-resistant spring; 127. Guide column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A biomass circulating fluidized bed gasifier air distribution device includes a furnace body 1. Three support legs 2 arranged in a ring array are fixedly connected to the side of the furnace body 1. A biomass feed pipe 3 is fixedly connected to the inner wall of the furnace body 1. A ventilation pipe 4 is fixedly connected to the inner wall of the furnace body 1 and below the biomass feed pipe 3. An installation cylinder 5 is fixedly connected to the upper side of the ventilation pipe 4. A rotating rod 6 is rotatably connected to the inner wall of the installation cylinder 5. The rotating rod 6 is rotatably connected to the ventilation pipe 4. A locking hole 9 is opened on the inner side wall of the installation cylinder 5. An elastic block 10 is bonded to the inner wall of the rotating column of the rotating rod 6. A locking ball 11 is bonded to the other end of the elastic block 10. The locking ball 11 is slidably connected to the locking hole 9.

[0024] Please see Figure 1, Figure 2 , Figure 3 , Figure 5 The upper end of the rotating rod 6 is fixedly connected to a handle 7, which is made of silicone. The handle 7 facilitates the rotation of the rotating rod 6, and the silicone material has a good skin-friendly feel. A sealing disc 8 is fixedly sleeved on the outside of the rotating rod 6. The sealing disc 8 is rotatably connected to the ventilation pipe 4. The flow diameter of the ventilation pipe 4 can be adjusted by the sealing disc 8. Multiple locking holes 9 are provided, which are arranged in a ring array on the mounting cylinder 5. The locking holes 9 can be used to engage with the locking ball 11.

[0025] Please see Figure 1 , Figure 2 , Figure 4 The furnace body 1 is equipped with an air distribution mechanism 12, which includes an air distribution plate 121. The air distribution plate 121 is fixedly connected to the inner wall of the furnace body 1. The surface of the air distribution plate 121 is provided with air distribution holes 122. A fixing rod 123 is fixedly connected to the inner wall of the furnace body 1 and below the air distribution plate 121. A heat-resistant steel wire 124 is slidably connected to the inner wall of the fixing rod 123. The horizontal part of the heat-resistant steel wire 124 is slidably connected to the furnace body 1. An impact member 125 is fixedly connected to the upper end of the heat-resistant steel wire 124. The impactor 125 contacts the air distribution plate 121. A heat-resistant spring 126 is provided on the outer side of the vertical part of the heat-resistant steel wire 124. A guide post 127 is fixedly connected to the inner wall of the furnace body 1 and located below the fixed rod 123. The guide post 127 contacts the heat-resistant steel wire 124. The normal flow of oxygen can be ensured through the air distribution hole 122. With the structure of the heat-resistant steel wire 124 and the heat-resistant spring 126, the impactor 125 can vibrate the air distribution plate 121 to avoid the blockage of the air distribution hole 122.

[0026] Please see Figure 1 , Figure 2 , Figure 4 The impact member 125 is spherical in shape and is made of heat-resistant steel ball. The heat-resistant steel ball provides good durability for the impact member 125. One end of the heat-resistant spring 126 is welded to the impact member 125 and the other end is welded to the fixing rod 123. The heat-resistant spring 126 can support the impact member 125.

[0027] The specific implementation process of this utility model is as follows: In use, oxygen can be introduced into the furnace body 1 through the ventilation pipe 4. The handle 7 can be pushed to rotate, thereby driving the rotating rod 6 to rotate, which in turn drives the sealing disc 8 to rotate. The deflection angle of the sealing disc 8 is adjusted, thereby adaptively controlling the flow of the ventilation pipe 4. When the rotating rod 6 rotates, it can drive the locking ball 11 to rotate. Under the pressure of the inner wall of the locking hole 9, the locking ball 11 can be pushed to move, thereby pushing the elastic block 10 to deform. Finally, the locking ball 11 is disengaged from the locking hole 9. Under the action of force, the locking ball 11 slides along the inner wall of the furnace body 1. When the locking ball 11 slides into the next locking hole 9, the elastic block 10 restores its deformation, thereby pushing the locking ball 11 to insert into the locking hole 9, and limiting the rotation of the sealing disc 8.

[0028] The air distribution plate 121 and air distribution holes 122 allow for air circulation and distribution to ensure normal biomass combustion. The heat-resistant steel wire 124 can be pulled to move the impactor 125 downward, causing it to detach from the air distribution plate 121. The heat-resistant spring 126 deforms during this process. When the heat-resistant steel wire 124 is released, the spring 126 returns to its original shape, pushing the impactor 125 into contact with the air distribution plate 121. This impacts and vibrates the air distribution plate 121, preventing biomass combustion particles from clogging the air distribution holes 122.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biomass circulating fluidized bed gasifier air distribution apparatus comprising a furnace body (1), characterized in that: The side of the furnace body (1) is fixedly connected with three support legs (2) arranged in annular array, the inner wall of the furnace body (1) is fixedly connected with a biomass feeding pipe (3), the inner wall of the furnace body (1) and located at the lower side of the biomass feeding pipe (3) is fixedly connected with a ventilation pipe (4), the upper side of the ventilation pipe (4) is fixedly connected with a mounting cylinder (5), the inner wall of the mounting cylinder (5) is rotatably connected with a rotating rod (6), the rotating rod (6) is rotatably connected with the ventilation pipe (4), the inner side wall of the mounting cylinder (5) is provided with a clamping hole (9), the rotating column of the rotating rod (6) is bonded with an elastic block (10), the other end of the elastic block (10) is bonded with a clamping ball (11), the clamping ball (11) is slidably connected with the clamping hole (9), and the inside of the furnace body (1) is provided with a wind distribution mechanism (12).

2. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 1, wherein: The upper end of the rotating rod (6) is fixedly connected with a handle rod (7), and the handle rod (7) is made of silica gel.

3. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 1, wherein: The outer side of the rotating rod (6) is fixedly sleeved with a sealing disc (8), and the sealing disc (8) is rotatably connected with the ventilation pipe (4).

4. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 1, wherein: The clamping hole (9) is provided with a plurality of clamping holes (9), and the plurality of clamping holes (9) are arranged in annular array on the mounting cylinder (5).

5. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 1, wherein: The wind distribution mechanism (12) comprises a wind distribution disc (121), the inner wall of the furnace body (1) is fixedly connected with the wind distribution disc (121), the surface of the wind distribution disc (121) is provided with a wind distribution hole (122), the inner wall of the furnace body (1) and located at the lower side of the wind distribution disc (121) is fixedly connected with a fixed rod (123), the inner wall of the fixed rod (123) is slidably connected with a heat-resistant steel wire (124), the horizontal part of the heat-resistant steel wire (124) is slidably connected with the furnace body (1), the upper end of the heat-resistant steel wire (124) is fixedly connected with an impact piece (125), the impact piece (125) is in contact with the wind distribution disc (121), the outer side of the vertical part of the heat-resistant steel wire (124) is provided with a heat-resistant spring (126), the inner wall of the furnace body (1) and located at the lower side of the fixed rod (123) is fixedly connected with a guide column (127), and the guide column (127) is in contact with the heat-resistant steel wire (124).

6. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 5, wherein: The impact piece (125) is in the form of a spherical ball, and the impact piece (125) is a heat-resistant steel ball.

7. The air distribution equipment for a biomass circulating fluidized bed gasifier according to claim 5, wherein: One end of the heat-resistant spring (126) is welded with the impact piece (125), and the other end of the heat-resistant spring (126) is welded with the fixed rod (123).

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