A fluidized bed reactor

Abstract

The present application relates to the technical field of fluidized bed reactor, and particularly relates to a fluidized bed reactor, comprising a mounting unit, a reactor body and a feeding pipe arranged on the reactor body, a limiting unit comprising a support arranged on the reactor body and a first limiting piece, and a protection plate, the bottom of which is in abutment with the support, the protection plate being located between the first limiting piece and the reactor body, and the protection plate being located above the end of the feeding pipe. The fluidized bed reactor limits the protection plate through the limiting unit, so that the protection plate is attached to the reactor body above the feeding pipe, thereby being capable of shielding the reactor body, and when the silicon powder moves upward along the airflow, the protection plate is contacted and abraded, thereby protecting the reactor body and avoiding leakage caused by abrasion of the reactor body.

Description

Technical Field

[0001] This invention relates to the technical field of fluidized bed reactors, and more particularly to a fluidized bed reactor. Background Technology

[0002] A fluidized bed reactor is a device in which gas or liquid undergoes a chemical reaction within a bed of solid materials or catalysts. It is also known as a boiling bed reactor. In existing fluidized bed reactors, the silicon powder feed port is an inserted sleeve. The airflow at this port is irregular and upward. During long-term operation, the silicon powder moves upward with the airflow at the feed port and washes against the inner wall of the reactor above the feed port, causing wear on the inner wall of the reactor. Over time, this wear can lead to equipment leakage and system shutdown. Summary of the Invention

[0003] In view of the wear problem existing in the above-mentioned fluidized bed reactors, the present invention is proposed.

[0004] Therefore, the purpose of this invention is to provide a fluidized bed reactor that protects the inner wall of the reactor above the feed inlet from wear.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a fluidized bed reactor, comprising,

[0006] The installation unit includes a reactor body and a feed pipe disposed on the reactor body;

[0007] The limiting unit includes a support member and a first limiting member disposed on the reactor body; and,

[0008] The protective plate has its bottom abutting against the support member, and the protective plate is located between the first limiting member and the reactor body;

[0009] The protective plate is located above the end of the feed pipe.

[0010] In a preferred embodiment of the fluidized bed reactor of the present invention, the protective plate includes a protective section and a control section;

[0011] The protective part is in the shape of an arc-shaped plate, and the protective part is in close contact with the reactor body;

[0012] The control unit is located on top of the protective unit, and the control unit includes an inclined plate connected to the protective unit and a bent plate connected to the inclined plate.

[0013] In a preferred embodiment of the fluidized bed reactor of the present invention, the bottom width of the protective section is smaller than the width of the control section, and both ends of the control section extend beyond the bottom ends of the protective section.

[0014] The control unit is equipped with baffles at both ends;

[0015] A positioning space is formed between the baffle, the inclined plate, and the reactor body.

[0016] In a preferred embodiment of the fluidized bed reactor of the present invention, the top of the bent plate is provided with a flow channel.

[0017] In a preferred embodiment of the fluidized bed reactor of the present invention, the bent plate is provided with a fixing groove.

[0018] In a preferred embodiment of the fluidized bed reactor of the present invention, the bottom of the protective plate is provided with a slot;

[0019] The slot engages with the feed pipe.

[0020] In a preferred embodiment of the fluidized bed reactor of the present invention, the support member includes a first support frame disposed on the reactor body, a first limiting plate rotatably disposed on the first support frame, and a first elastic member disposed between the first limiting plate and the reactor body.

[0021] In a preferred embodiment of the fluidized bed reactor of the present invention, two supports are provided, and the two supports are respectively located on both sides of the feed pipe.

[0022] In a preferred embodiment of the fluidized bed reactor of the present invention, two first limiting members are provided, and each of them cooperates with both sides of the protective plate.

[0023] The first limiting member includes a second support frame disposed on the reactor body, a second limiting plate rotatably disposed on the second support frame, and a second elastic member disposed between the second limiting plate and the reactor body.

[0024] As a preferred embodiment of the fluidized bed reactor of the present invention, the limiting unit further includes a second limiting member disposed on the reactor body, wherein two second limiting members are provided and respectively cooperate with both sides of the protective plate;

[0025] The second limiting member includes a third limiting plate that is slidably inserted into the reactor body, and a third elastic member disposed between the third limiting plate and the reactor body.

[0026] The beneficial effects of the present invention are as follows: the protective plate is limited by the limiting unit, so that the protective plate is attached to the reactor body above the feed pipe, thereby shielding the reactor body. When the silicon powder moves upward with the airflow, it will come into contact with the protective plate and wear it down, thereby protecting the reactor body and preventing leakage caused by wear. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An overall schematic diagram of Embodiment 1 is shown;

[0029] Figure 2 An overall schematic diagram of Embodiment 2 is shown;

[0030] Figure 3 It shows Figure 2 Enlarged view of region A in the middle;

[0031] Figure 4 It shows Figure 2 Enlarged view of region B in the middle;

[0032] Figure 5 The diagram shows the replacement status of the protective plate in Embodiment 2;

[0033] Figure 6 An overall schematic diagram of Embodiment 3 is shown;

[0034] Figure 7 An overall schematic diagram of Embodiment 4 is shown;

[0035] Figure 8 It shows Figure 7 Enlarged view of region C.

[0036] In the diagram: 100, Installation unit; 101, Reactor body; 102, Feed pipe; 200, Limiting unit; 201, Support component; 202, First limiting component; 300, Protective plate; 301, Protective part; 302, Control part; 302a, Inclined plate; 302b, Bending plate; 303, Baffle; 302c, Flow channel; 302d, Fixing groove; 304, Slot; 201a, First support frame; 201b, First limiting plate; 201c, First elastic component; 202a, Second support frame; 202b, Second limiting plate; 202c, Second elastic component; 203, Second limiting component; 203a, Third limiting plate; 203b, Third elastic component. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0038] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0039] Example 1, referring to Figure 1 The first embodiment of the present invention provides a fluidized bed reactor, which includes an installation unit 100, a limiting unit 200, and a protective plate 300.

[0040] The installation unit 100 includes a reactor body 101 and a feed pipe 102 disposed on the reactor body 101. The feed pipe 102 is inserted into the reactor body 101 at an angle from top to bottom, and the end of the feed pipe 102 extends into the reactor body 101.

[0041] The limiting unit 200 includes a support member 201 and a first limiting member 202 disposed on the reactor body 101, and the support member 201 and the first limiting member 202 are located inside the reactor body 101.

[0042] The bottom of the protective plate 300 abuts against the support member 201. The protective plate 300 is located between the first limiting member 202 and the reactor body 101, and the protective plate 300 is located above the end of the feed pipe 102.

[0043] Furthermore, the bottom of the protective plate 300 is provided with a slot 304; the slot 304 is engaged with the feed pipe 102, and the bottom of the protective plate 300 is engaged with the feed pipe 102 through the slot 304.

[0044] The support member 201 is made of a fixing plate fixedly installed on the reactor body 101, and preferably there are two fixing plates, which are located on both sides of the feed pipe 102, and the bottom of the protective plate 300 is in contact with the fixing plate.

[0045] The first limiting member 202 is fixedly mounted on the reactor body 101 using a fixed frame. There are two fixed frames, which are L-shaped, and the protective plate 300 is inserted between the two fixed frames on both sides.

[0046] The protective plate 300 is supported by a fixing plate and the fixing frame limits the protective plate 300, so that the protective plate 300 is attached to the reactor body 101 above the feed pipe 102.

[0047] Silicon powder is added into the reactor body 101 through the feed pipe 102. The silicon powder moves upward under the airflow inside the reactor body 101 and washes the protective plate 300, thereby avoiding the silicon powder directly washing the reactor body 101 and preventing the reactor body 101 from being washed and worn.

[0048] Example 2, refer to Figures 2-5 This is the second embodiment of the present invention, which differs from the first embodiment in that the protective plate 300 includes a protective part 301 and a control part 302;

[0049] The protective part 301 is in the shape of an arc-shaped plate, and the protective part 301 is attached to the reactor body 101;

[0050] The control unit 302 is located on top of the protective unit 301. The control unit 302 includes an inclined plate 302a connected to the protective unit 301 and a bent plate 302b connected to the inclined plate 302a. The bending direction of the bent plate 302b is towards the protective unit 301.

[0051] An observatory space is formed between the inclined plate 302a and the reactor body 101, wherein the observatory space can accommodate the bottom insertion of another protective plate 300.

[0052] The bending plate 302b is designed to facilitate remote control of the protective plate 300. The protective plate 300 can be remotely lifted by a long rod and a strip at the end of the rod, with the strip being inserted between the bending plate 302b and the inclined plate 302a. This allows the protective plate 300 to be remotely delivered to the feed pipe 102 without the need for manual installation inside the reactor body 101.

[0053] Furthermore, the support member 201 includes a first support frame 201a disposed on the reactor body 101, a first limiting plate 201b rotatably disposed on the first support frame 201a, and a first elastic member 201c disposed between the first limiting plate 201b and the reactor body 101. The first support frame 201a is U-shaped, and the first limiting plate 201b is rotatably disposed between the U-shaped first support frames 201a. Meanwhile, the first elastic member 201c can be made of a spring or a metal sheet. The first elastic member 201c makes the first limiting plate 201b contact the protective part 301.

[0054] The first elastic element 201c can also be set between the first support frame 201a and the first limiting plate 201b. In this case, the first elastic element 201c is made of torsion spring. Since the first support frame 201a is fixedly connected to the reactor body 101 as a whole, it can be regarded as the first elastic element 201c being installed on the reactor body 101.

[0055] The first limiting member 202 includes a second support frame 202a disposed on the reactor body 101, a second limiting plate 202b rotatably disposed on the second support frame 202a, and a second elastic member 202c disposed between the second limiting plate 202b and the reactor body 101. The second support frame 202a is U-shaped, and the second limiting plate 202b is rotatably disposed between the U-shaped second support frames 202a. The second elastic member 202c can be made of a spring or a metal sheet. The second elastic member 202c makes the second limiting plate 202b contact the protective part 301.

[0056] The second elastic element 202c can also be set between the second support frame 202a and the second limiting plate 202b. In this case, the second elastic element 202c is made of torsion spring. Since the second support frame 202a is fixedly connected to the reactor body 101 as a whole, it can be regarded as the second elastic element 202c being installed on the reactor body 101.

[0057] The bottom of the protective plate 300 is supported by the first support frame 201a, while the first limiting plate 201b can restrict the bottom of the protective plate 300 from moving away from the surface of the first support frame 201a. The upper part of the protective plate 300 is restricted by the second limiting plate 202b to prevent the protective plate 300 from separating from the reactor body 101, so that the protective plate 300 can protect the reactor body 101 above the feed pipe 102.

[0058] When the protective plate 300 is worn, it needs to be replaced with a new one. For ease of understanding, the protective plate 300 to be replaced is referred to as the old protective plate 300, and the new protective plate 300 is referred to as the new protective plate 300. During replacement, the bottom of the new protective plate 300 needs to be remotely controlled by a long rod to fall into the limiting space, which can initially position the new protective plate 300. After adjusting the position of the new protective plate 300 to coincide with the position of the old protective plate 300, the new protective plate 300 is pressed down so that it is inserted between the old protective plate 300 and the reactor body 101, squeezing the old protective plate 300 away from the reactor body 101. Since the old protective plate 300 is restricted and blocked by the first limiting plate 201b, it will not detach from the first support frame 201a. However, this does not affect the rotation of the old protective plate 300 along with the first limiting plate 201b. When the old protective plate 300 rotates, the upper part of the old protective plate 300 will drive the second limiting plate 202b to rotate together until the old protective plate 300 is separated from the second limiting plate 202b and tilted. At the same time, the second limiting plate 202b will return to its original state after separating from the old protective plate 300. The new protective plate 300 will be inserted into the second limiting plate 202b and restricted between the second limiting plate 202b and the reactor body 101. Finally, the old protective plate 300 will be pulled out by hooking the long rod, and the new protective plate 300 will fall on the surface of the first support frame 201a to replace the old protective plate 300. The installation of the new protective plate 300 and the removal of the old protective plate 300 can be completed remotely.

[0059] Furthermore, the top of the bending plate 302b is provided with a flow channel groove 302c, wherein the flow channel groove 302c is provided so that the silicon powder can pass smoothly through the bending plate 302b when it is driven by the airflow inside the reactor body 101, without affecting the flow path of the airflow.

[0060] The remaining structure is the same as that in Example 1.

[0061] Example 3, referring to Figure 6 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the bottom width of the protective part 301 is smaller than the width of the control part 302, and both ends of the control part 302 extend beyond the bottom ends of the protective part 301.

[0062] The control unit 302 is provided with baffles 303 at both ends;

[0063] A positioning space is formed between the baffle 303, the inclined plate 302a and the reactor body 101.

[0064] When replacing the protective plate 300, the positioning space can accurately place the new protective plate 300 between the old protective plate 300 and the reactor body 101 without needing to adjust the position between the new and old protective plates 300.

[0065] Furthermore, the bending plate 302b is provided with a fixing groove 302d. The fixing groove 302d is horizontal with the bending plate 302b. When the new protective plate 300 is installed remotely by means of a long rod, the end of the long rod is inserted into the fixing groove 302d to control the new protective plate 300 to be inserted into the positioning space. At the same time, the new protective plate 300 can be directly controlled to press the old protective plate 300 downward without the long rod being pulled out.

[0066] The remaining structure is the same as that in Example 2.

[0067] Example 4, refer to Figure 7 and Figure 8 This is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that the limiting unit 200 further includes a second limiting member 203 disposed on the reactor body 101. There are two second limiting members 203, which respectively cooperate with the two sides of the protective plate 300.

[0068] The second limiting member 203 includes a third limiting plate 203a that is slidably inserted into the reactor body 101, and a third elastic member 203b disposed between the third limiting plate 203a and the reactor body 101. The third elastic member 203b can be made of a spring or a metal sheet. The third limiting plate 203a is L-shaped. One end of the third limiting plate 203a is inserted into the reactor body 101, and the other end is attached to the protective plate 300 under the elastic force of the third elastic member 203b.

[0069] When replacing the old protective plate 300, when the old protective plate 300 is tilted after detaching from the second limiting plate 202b, the old protective plate 300 will cause the third limiting plate 203a to extend. Under the restriction of the third limiting plate 203a, the old protective plate 300 can maintain its tilted state, which can prevent the old protective plate 300 from falling off the first support frame 201a. When the old protective plate 300 is pulled out, the new protective plate 300 will fall on the surface of the first support frame 201a to replace the old protective plate 300. At the same time, the third limiting plate 203a and the second limiting plate 202b will contact and adhere to the new protective plate 300.

[0070] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention 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 solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fluidized bed reactor, characterized in that: include, The installation unit (100) includes a reactor body (101) and a feed pipe (102) disposed on the reactor body (101). The limiting unit (200) includes a support (201) and a first limiting member (202) disposed on the reactor body (101); and, The protective plate (300) abuts against the support member (201) at its bottom, and the protective plate (300) is located between the first limiting member (202) and the reactor body (101); The protective plate (300) is located above the end of the feed pipe (102); The protective plate (300) includes a protective part (301) and a control part (302). The protective part (301) is in the shape of an arc-shaped plate, and the protective part (301) is attached to the reactor body (101); The control unit (302) is located on top of the protective unit (301). The control unit (302) includes an inclined plate (302a) connected to the protective unit (301) and a bent plate (302b) connected to the inclined plate (302a). The support member (201) includes a first support frame (201a) disposed on the reactor body (101), a first limiting plate (201b) rotatably disposed on the first support frame (201a), and a first elastic member (201c) disposed between the first limiting plate (201b) and the reactor body (101). Two first limiting members (202) are provided, and they respectively cooperate with the two sides of the protective plate (300); The first limiting member (202) includes a second support frame (202a) disposed on the reactor body (101), a second limiting plate (202b) rotatably disposed on the second support frame (202a), and a second elastic member (202c) disposed between the second limiting plate (202b) and the reactor body (101). When the protective plate (300) is worn, it needs to be replaced with a new one. For ease of understanding, the protective plate (300) to be replaced is referred to as the old protective plate (300), and the new protective plate (300) is referred to as the new protective plate (300). During replacement, the bottom of the new protective plate (300) needs to be controlled remotely by a long rod to fall into the limiting space, so that the new protective plate (300) can be initially positioned. After adjusting the position of the new protective plate (300) to coincide with the position of the old protective plate (300), the new protective plate (300) is pressed down so that the new protective plate (300) is inserted between the old protective plate (300) and the reactor body (101), squeezing the old protective plate (300) away from the reactor body (101). Since the old protective plate (300) is restricted and blocked by the first limiting plate (201b), it will not fall off the first support frame (201a). However, this does not affect the rotation of the old protective plate (300) along with the first limiting plate (201b). When the old protective plate (300) rotates, the upper part of the old protective plate (300) will drive the second limiting plate (202b) to rotate together until the old protective plate (300) is separated from the second limiting plate (202b) and tilted. At the same time, the second limiting plate (202b) will return to its original state after separating from the old protective plate (300). The new protective plate (300) will be inserted into the second limiting plate (202b) and restricted between the second limiting plate (202b) and the reactor body (101). Finally, the old protective plate (300) will be pulled out by hooking the long rod. The new protective plate (300) will fall on the surface of the first support frame (201a) to replace the old protective plate (300). The installation of the new protective plate (300) and the removal of the old protective plate (300) are completed remotely.

2. The fluidized bed reactor according to claim 1, characterized in that: The bottom width of the protective part (301) is smaller than the width of the control part (302), and both ends of the control part (302) extend beyond the bottom ends of the protective part (301). The control unit (302) is provided with baffles (303) at both ends; A positioning space is formed between the baffle (303), the inclined plate (302a), and the reactor body (101).

3. The fluidized bed reactor according to claim 1 or 2, characterized in that: The top of the bent plate (302b) is provided with a flow channel groove (302c).

4. The fluidized bed reactor according to claim 3, characterized in that: The bent plate (302b) is provided with a fixing groove (302d).

5. The fluidized bed reactor according to any one of claims 1-2 and 4, characterized in that: The bottom of the protective plate (300) is provided with a slot (304); The slot (304) engages with the feed pipe (102).

6. The fluidized bed reactor according to claim 1, characterized in that: Two support members (201) are provided, and the two support members (201) are respectively located on both sides of the feed pipe (102).

7. The fluidized bed reactor according to claim 6, characterized in that: The limiting unit (200) further includes a second limiting member (203) disposed on the reactor body (101). There are two second limiting members (203), which respectively cooperate with the two sides of the protective plate (300). The second limiting member (203) includes a third limiting plate (203a) that is slidably inserted into the reactor body (101), and a third elastic member (203b) disposed between the third limiting plate (203a) and the reactor body (101).

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