Fluidized bed reactor

Abstract

The present invention relates to the technical field of fluidized bed reactors, particularly to a fluidized bed reactor, which comprises: a mounting unit, which comprises a reactor body and a feeding pipe arranged on the reactor body; the limiting unit comprises a supporting piece and a first limiting piece which are arranged on the reactor body; the bottom of the protection plate abuts against the supporting piece, and the protection plate is located between the first limiting piece and the reactor body; and the protection plate is positioned above the end part of the feeding pipe. According to the fluidized bed reactor, the protection plate is limited through the limiting unit, so that the protection plate is attached to the reactor body above the feeding pipe, the reactor body can be shielded, silicon powder makes contact with the protection plate when moving upwards along with airflow, the protection plate is abraded, and therefore the reactor body is protected; leakage caused by abrasion of the reactor body is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fluidized bed reactors, in particular to a fluidized bed reactor. Background Art

[0002] A fluidized bed reactor, also known as a fluidized bed reactor, is a device in which gases or liquids undergo chemical reactions within a bed composed of solid materials or catalysts. The silicon powder feed port in existing fluidized bed reactors is an inserted sleeve, where the upward airflow is irregular. During long-term operation, the silicon powder moves upward with the airflow at the feed port and washes the inner wall of the reactor above the feed port, causing wear on the reactor inner wall. Long-term 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 existing fluidized bed reactor, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide a fluidized bed reactor that protects the inner wall of the reactor above the feed port from wear.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a fluidized bed reactor comprising: An installation unit comprising a reactor body and a feed pipe arranged on the reactor body; a limiting unit comprising a support member and a first limiting member provided on the reactor body; and a protective plate, the bottom of which abuts against the support member, and the protective plate is located between the first limiting member and the reactor body; The protective plate is located above the end of the feeding pipe.

[0006] As a preferred embodiment of the fluidized bed reactor of the present invention, the protective plate includes a protective portion and a control portion; The protection portion is in the shape of an arc-shaped plate, and the protection portion is in contact with the reactor body; The control portion is located on the top of the protection portion, and the control portion includes an inclined plate connected to the protection portion, and a bent plate connected to the inclined plate.

[0007] As a preferred embodiment of the fluidized bed reactor of the present invention, the bottom width of the protection portion is smaller than the width of the control portion, and both ends of the control portion extend beyond both ends of the bottom of the protection portion; Baffles are provided at both ends of the control part; A positioning space is formed between the baffle, the inclined plate and the reactor body.

[0008] As a preferred solution of the fluidized bed reactor of the present invention, a flow channel is provided on the top of the bent plate.

[0009] As a preferred solution of the fluidized bed reactor of the present invention, a fixing groove is provided on the bent plate.

[0010] As a preferred solution of the fluidized bed reactor of the present invention, wherein: a slot is provided at the bottom of the protective plate; The clamping slot is clamped with the feeding tube.

[0011] As a preferred solution of the fluidized bed reactor described in the present invention, the support member includes a first support frame arranged on the reactor body, a first limit plate rotatably arranged on the first support frame, and a first elastic member arranged between the first limit plate and the reactor body.

[0012] As a preferred solution of the fluidized bed reactor of the present invention, there are two support members, and the two support members are respectively located on both sides of the feed pipe.

[0013] As a preferred solution of the fluidized bed reactor of the present invention, two first limiting members are provided, and are respectively engaged with two sides of the protective plate; The first limiting member includes a second support frame arranged on the reactor body, a second limiting plate rotatably arranged on the second support frame, and a second elastic member arranged between the second limiting plate and the reactor body.

[0014] As a preferred embodiment of the fluidized bed reactor of the present invention, the limiting unit further comprises a second limiting member provided on the reactor body, wherein two second limiting members are provided and respectively engage with two sides of the protective plate; The second limiting member includes a third limiting plate slidably inserted on the reactor body, and a third elastic member arranged between the third limiting plate and the reactor body.

[0015] The beneficial effects of the present invention are as follows: the protective plate is limited by the limiting unit so that the protective plate fits on the reactor body above the feed pipe, thereby shielding the reactor body; when the silicon powder moves upward with the air flow, it comes into contact with the protective plate, causing the protective plate to be worn, thereby protecting the reactor body and preventing the reactor body from being worn and leaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Shows an overall schematic diagram of embodiment 1; Figure 2 shows an overall schematic diagram of the second embodiment; Figure 3 Shown Figure 2 Enlarged view of area A in the middle; Figure 4 Shown Figure 2 Enlarged view of area B in the middle; Figure 5 A diagram showing a protective plate replacement state of the second embodiment is shown; Figure 6 shows an overall schematic diagram of embodiment three; Figure 7 shows an overall schematic diagram of the fourth embodiment; Figure 8 Shown Figure 7 Enlarged view of area C in the middle.

[0018] In the figure: 100, mounting unit; 101, reactor body; 102, feed pipe; 200, limiting unit; 201, support member; 202, first limiting member; 300, protective plate; 301, protective part; 302, control part; 302a, inclined plate; 302b, bending plate; 303, baffle; 302c, flow channel; 302d, fixing groove; 304, card slot; 201a, first support frame; 201b, first limiting plate; 201c, first elastic member; 202a, second support frame; 202b, second limiting plate; 202c, second elastic member; 203, second limiting member; 203a, third limiting plate; 203b, third elastic member. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0020] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0021] Example 1, reference Figure 1 , which is a first embodiment of the present invention, provides a fluidized bed reactor, which includes a mounting unit 100, a limiting unit 200 and a protective plate 300.

[0022] The installation unit 100 includes a reactor body 101 and a feed pipe 102 arranged on the reactor body 101 , wherein 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 .

[0023] The limiting unit 200 includes a support member 201 and a first limiting member 202 provided on the reactor body 101 . The support member 201 and the first limiting member 202 are located inside the reactor body 101 .

[0024] The bottom of the protection plate 300 abuts against the support member 201 . The protection plate 300 is located between the first limiting member 202 and the reactor body 101 , and the protection plate 300 is located above the end of the feed pipe 102 .

[0025] Furthermore, a card slot 304 is provided at the bottom of the protective plate 300 ; the card slot 304 is card-engaged with the feed pipe 102 , and the bottom of the protective plate 300 is card-engaged on the feed pipe 102 through the card slot 304 .

[0026] The support member 201 is made of a fixed plate fixedly arranged on the reactor body 101 , and preferably there are two fixed 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 fixed plates.

[0027] The first limiting member 202 is fixedly mounted on a fixing frame on the reactor body 101 , and two fixing frames are provided. The fixing frames are L-shaped, and both sides of the protection plate 300 are inserted between the two fixing frames.

[0028] The protective plate 300 is supported by a fixing plate, and the fixing frame limits the position of the protective plate 300 so that the protective plate 300 is attached to the reactor body 101 above the feed pipe 102 .

[0029] Silicon powder is added to the reactor body 101 through the feed pipe 102. Driven by the airflow inside the reactor body 101, the silicon powder moves upward to flush the protective plate 300, thereby avoiding the silicon powder directly flushing the reactor body 101 and preventing the reactor body 101 from being flushed and worn.

[0030] Example 2, reference Figure 2-Figure 5 , which is a second embodiment of the present invention. This embodiment is different from the first embodiment in that: the protection plate 300 includes a protection portion 301 and a control portion 302; The protection part 301 is in the shape of an arc-shaped plate, and the protection part 301 is in close contact with the reactor body 101; The control portion 302 is located on the top of the protection portion 301. The control portion 302 includes an inclined plate 302a connected to the protection portion 301 and a bent plate 302b connected to the inclined plate 302a. The bent direction of the bent plate 302b is toward the protection portion 301. A limiting space is formed between the inclined plate 302a and the reactor body 101, wherein the limiting space can accommodate the bottom of another protective plate 300 to be inserted.

[0031] The setting of the bending plate 302b facilitates remote control of the protective plate 300. A long rod and a long strip at the end of the long rod can be used. The long strip is stuck between the bending plate 302b and the inclined plate 302a to remotely lift the protective plate 300, so that the protective plate 300 can be remotely delivered to the feed pipe 102 without manual climbing into the reactor body 101 for installation.

[0032] Furthermore, the support member 201 includes a first support frame 201a arranged on the reactor body 101, a first limiting plate 201b rotatably arranged on the first support frame 201a, and a first elastic member 201c arranged between the first limiting plate 201b and the reactor body 101, wherein the first support frame 201a is U-shaped, and the first limiting plate 201b is rotatably arranged between the U-shaped first support frame 201a. At the same time, the first elastic member 201c can be made of a spring or a metal spring sheet, and the first limiting plate 201b is contacted with the protective part 301 through the first elastic member 201c.

[0033] The first elastic member 201c can also be arranged between the first support frame 201a and the first limiting plate 201b. In this case, the first elastic member 201c is made of a 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 member 201c is installed on the reactor body 101.

[0034] The first limiting member 202 includes a second support frame 202a arranged on the reactor body 101, a second limiting plate 202b rotatably arranged on the second support frame 202a, and a second elastic member 202c arranged between the second limiting plate 202b and the reactor body 101, wherein the second support frame 202a is U-shaped, and the second limiting plate 202b is rotatably arranged between the U-shaped second support frame 202a. At the same time, the second elastic member 202c can be made of a spring or a metal spring sheet, and the second limiting plate 202b is brought into contact with the protective portion 301 through the second elastic member 202c.

[0035] The second elastic member 202c can also be arranged between the second support frame 202a and the second limiting plate 202b. In this case, the second elastic member 202c is made of a 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 member 202c is installed on the reactor body 101.

[0036] The bottom of the protective plate 300 is supported by the first support frame 201a, and the first limiting plate 201b can limit the movement of the bottom of the protective plate 300 from the surface of the first support frame 201a. The upper part of the protective plate 300 is limited by the second limiting plate 202b to prevent the protective plate 300 from being separated from the reactor body 101, so that the protective plate 300 can protect the reactor body 101 above the feed pipe 102.

[0037] When the protective plate 300 is worn, it needs to be replaced with a new protective plate 300. For the sake of convenience, the protective plate 300 to be replaced is called the old protective plate 300, and the new protective plate 300 is called the new protective plate 300. When replacing, the bottom of the new protective plate 300 needs to be remotely controlled by a long rod to fall into the limit space, so that the new protective plate 300 can be initially positioned. After that, the position of the new protective plate 300 is adjusted to coincide with the position of the old protective plate 300, and the new protective plate 300 is pressed downward so that the new protective plate 300 is inserted between the old protective plate 300 and the reactor body 101, and the old protective plate 300 is squeezed away from the reactor body 101. Since the old protective plate 300 is restricted and blocked by the first limit plate 201b, it will not fall off the first support frame 201a However, it does not affect the rotation of the old protective plate 300 with the first limit plate 201b. When the old protective plate 300 rotates, the upper part of the old protective plate 300 will drive the second limit plate 202b to rotate together until the old protective plate 300 is separated from the second limit plate 202b and becomes tilted. At the same time, the second limit plate 202b will return to its original shape after being separated from the old protective plate 300. The new protective plate 300 will be inserted into the second limit plate 202b and be restricted between the second limit plate 202b and the reactor body 101. Finally, the old protective plate 300 is hooked and pulled out by a 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 can be completed remotely.

[0038] Furthermore, a flow channel 302c is provided on the top of the bending plate 302b, wherein the setting of the flow channel 302c enables the silicon powder to pass through the bending plate 302b smoothly when passing through the bending plate 302b under the drive of the airflow inside the reactor body 101 without affecting the flow path of the airflow.

[0039] The remaining structures are the same as those of Example 1.

[0040] Example 3, reference Figure 6 , which is the third embodiment of the present invention. This embodiment differs from the second embodiment in that: the bottom width of the protection portion 301 is smaller than the width of the control portion 302, and both ends of the control portion 302 extend beyond the bottom ends of the protection portion 301; Baffles 303 are provided at both ends of the control unit 302; A positioning space is formed between the baffle 303 , the inclined plate 302 a and the reactor body 101 .

[0041] The positioning space can accurately place the new protective plate 300 between the old protective plate 300 and the reactor body 101 when replacing the protective plate 300, without the need to adjust the position between the new protective plate 300 and the old protective plate 300.

[0042] Furthermore, a fixing groove 302d is provided on the bending plate 302b, and the position of the fixing groove 302d is horizontal to the bending plate 302b. When the new protective plate 300 is remotely installed through a long rod, it is only necessary to insert the end of the long rod into the fixing groove 302d to control the new protective plate 300 to be inserted into the positioning space. At the same time, there is no need to pull out the long rod to directly control the new protective plate 300 to squeeze the old protective plate 300 downward.

[0043] The remaining structures are the same as those of Example 2.

[0044] Example 4, with reference to Figure 7 and Figure 8 , which is the fourth embodiment of the present invention. This embodiment is different from the third embodiment in that: the limiting unit 200 also includes a second limiting member 203 arranged on the reactor body 101, and there are two second limiting members 203, which respectively cooperate with the two sides of the protective plate 300.

[0045] 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 arranged 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 spring 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 fitted with the protective plate 300 under the elastic force of the third elastic member 203b.

[0046] Among them, when replacing the old protective plate 300, when the old protective plate 300 is detached from the second limit plate 202b and is tilted, the old protective plate 300 will drive the third limit plate 203a to extend. Under the restriction of the third limit plate 203a, the old protective plate 300 can maintain an inclined state, which can prevent the old protective plate 300 from detaching from the first support frame 201a and falling off. 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 limit plate 203a and the second limit plate 202b are in contact and fit with the new protective plate 300.

[0047] 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 the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fluidized bed reactor, characterized in that: include, An installation unit (100) comprising a reactor body (101) and a feed pipe (102) disposed on the reactor body (101); a limiting unit (200), comprising a support member (201) and a first limiting member (202) arranged on the reactor body (101); and a protective plate (300), the bottom of which abuts against the support member (201), 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).

2. The fluidized bed reactor according to claim 1, characterized in that: The protective plate (300) comprises a protective portion (301) and a control portion (302); The protection portion (301) is in the shape of an arc-shaped plate, and the protection portion (301) is in contact with the reactor body (101); The control part (302) is located on the top of the protection part (301), and the control part (302) comprises an inclined plate (302a) connected to the protection part (301), and a bent plate (302b) connected to the inclined plate (302a).

3. The fluidized bed reactor according to claim 2, wherein: The bottom width of the protective portion (301) is smaller than the width of the control portion (302), and both ends of the control portion (302) extend beyond both ends of the bottom of the protective portion (301); Baffles (303) are provided at both ends of the control portion (302); A positioning space is formed between the baffle (303), the inclined plate (302a) and the reactor body (101).

4. The fluidized bed reactor according to claim 2 or 3, characterized in that: A flow channel groove (302c) is provided on the top of the bending plate (302b).

5. The fluidized bed reactor according to claim 4, characterized in that: A fixing groove (302d) is provided on the bending plate (302b).

6. The fluidized bed reactor according to any one of claims 1 to 3 and 5, characterized in that: A card slot (304) is provided at the bottom of the protective plate (300); The clamping groove (304) is clamped to the feeding tube (102).

7. The fluidized bed reactor according to any one of claims 1 to 3 and 5, characterized in that: The support member (201) comprises a first support frame (201a) arranged on the reactor body (101), a first limit plate (201b) rotatably arranged on the first support frame (201a), and a first elastic member (201c) arranged between the first limit plate (201b) and the reactor body (101).

8. The fluidized bed reactor according to claim 7, characterized in that: Two support members (201) are provided, and the two support members (201) are respectively located on both sides of the feeding pipe (102).

9. The fluidized bed reactor according to claim 7, characterized in that: Two first limiting members (202) are provided, and are respectively engaged with two sides of the protective plate (300); The first limiting member (202) includes a second support frame (202a) arranged on the reactor body (101), a second limiting plate (202b) rotatably arranged on the second supporting frame (202a), and a second elastic member (202c) arranged between the second limiting plate (202b) and the reactor body (101).

10. The fluidized bed reactor according to claim 8 or 9, characterized in that: The limiting unit (200) further comprises a second limiting member (203) provided on the reactor body (101), wherein two second limiting members (203) are provided and respectively cooperate with two sides of the protective plate (300); The second limiting member (203) comprises a third limiting plate (203a) slidably inserted on the reactor body (101), and a third elastic member (203b) arranged between the third limiting plate (203a) and the reactor body (101).

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