Fluidized bed reactor
By designing the second -angle of reaction gases in the multi -angle of reaction gas in the fluidized bed reactor, turbulence is formed, the problem of insufficient production capacity of the existing reactor has been solved, and the significant increase in production capacity and the stable operation of the reactor.
Patent Information
- Application Number
- CN202422627115.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-10-30
AI Technical Summary
When producing trichlorosilicon and silicone, the existing fluidized bed reactors have insufficient production capacity and are difficult to meet the new requirements for production capacity for a wide range of applications.
A fluidized bed reactor is designed, including cylinders, the first gas pipe group, and at least two second and second secondary gas pipe groups. The export of the second gas pipe group is higher than the exit of the first gas supply tube group, and through the cross -set first consumer trachea and second consumer trachea, the reaction gas is connected to the reaction cavity multi -angle, forming turbulence to improve the reaction efficiency.
By forming turbulence, the rate and effect of chemical reactions are improved, the production capacity of the fluidized bed reactor is significantly improved, and the export of gas supply is prevented from blocking the gas pipe export, ensuring the smooth operation of the reactor.
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of chemical equipment, and in particular to a fluidized bed reactor. Background Art
[0002] At present, the core equipment for the production of trichlorosilane and organosilicon is the fluidized bed reactor. The production of trichlorosilane is to pass hydrogen chloride gas and silicon powder into the reactor, and the trichlorosilane gas produced by the chemical reaction between the two can be used in the subsequent production of crystalline silicon. The production of organosilicon is to pass methyl chloride gas and silicon powder into the reactor, and the dimethyldichlorosilane gas produced by the chemical reaction between the two can be used in the subsequent production of organosilicon.
[0003] However, as the application of crystalline silicon and organosilicon becomes more and more widespread, new requirements are put forward for the production capacity of trichlorosilane and organosilicon. Therefore, a fluidized bed reactor that can improve the production capacity is urgently needed. Utility Model Content
[0004] The present application provides a fluidized bed reactor, which can improve the production capacity of the fluidized bed reactor.
[0005] In order to achieve the above objectives, this application adopts the following technical solutions:
[0006] The present application provides a fluidized bed reactor, comprising:
[0007] A cylinder, the cylinder comprising a reaction chamber;
[0008] A first gas supply pipe group, which is arranged at the bottom of the cylinder and communicated with the reaction chamber;
[0009] At least two second gas supply pipe groups, at least two of which are arranged at intervals on the circumference of the cylinder and are connected to the reaction chamber; the outlet of each second gas supply pipe group is higher than the outlet of the first gas supply pipe group in the vertical direction; each second gas supply pipe group includes a first sub-gas supply pipe and a second sub-gas supply pipe arranged crosswise in the extension direction;
[0010] Wherein, the first sub-air supply pipes and the second sub-air supply pipes of each of the second air supply pipe groups are arranged alternately in sequence along the same direction of the circumference of the cylinder;
[0011] In at least two of the second gas supply pipe groups, an outlet of the first sub-gas supply pipe of one is opposite to an outlet of the second sub-gas supply pipe of the other.
[0012] As a possible implementation manner, there are multiple second air supply pipe groups, and the multiple second air supply pipe groups are sequentially spaced apart along the circumference of the cylinder;
[0013] In the spaced second air supply pipe groups, an outlet of the first sub-air supply pipe of one group is opposite to an outlet of the second sub-air supply pipe of the other group.
[0014] As a possible implementation manner, in adjacent second air supply pipe groups, the extension directions of the first sub-air supply pipe of one and the second sub-air supply pipe of another adjacent second air supply pipe group intersect.
[0015] As a possible implementation manner, the fluidized bed reactor further comprises a distribution member located in the reaction chamber, wherein along the vertical direction, the distribution member is located between the first gas supply pipe group and the second gas supply pipe group, and the distribution member divides the reaction chamber into a first chamber and a second chamber;
[0016] The distribution member has first communication holes distributed in an array, and the first communication holes communicate with the first chamber and the second chamber.
[0017] As a possible implementation manner, the first gas supply pipe group introduces reaction gas into the reaction chamber along the vertical direction;
[0018] The gas supply direction of each of the second gas supply pipe groups intersects with the gas supply direction of the first gas supply pipe groups.
[0019] As a possible implementation manner, the first air supply pipe group includes a third sub-air supply pipe. Along the vertical direction, the third sub-air supply pipe is arranged on the bottom surface of the cylinder and is connected to the first chamber.
[0020] As a possible implementation manner, the first air supply pipe group further includes a fourth sub-air supply pipe, and a portion of the fourth sub-air supply pipe is located in the first chamber;
[0021] The distribution member has a second communicating hole, and the fourth sub-gas supply pipe is connected to the second chamber through the second communicating hole.
[0022] As a possible implementation manner, the fluidized bed reactor further includes a discharge pipe, and a portion of the discharge pipe is located in the first chamber;
[0023] The distribution member has a third communicating hole, and the discharge pipe is connected with the second chamber and the outside of the cylinder through the third communicating hole.
[0024] As a possible implementation manner, the fluidized bed reactor further comprises a feed pipe, which is disposed on a side of the cylinder and communicated with the reaction chamber;
[0025] Along the vertical direction, the outlet of the feed pipe is higher than each of the second gas supply pipe groups.
[0026] As a possible implementation manner, the top of the cylinder has an opening, and the opening is arranged at the top of the cylinder along the vertical direction, and the opening is used for the reaction material in the cylinder to be discharged.
[0027] The fluidized bed reactor provided by the present application has a cylinder with a reaction chamber, and the reaction chamber is used to accommodate reaction gas and reaction solid, so as to ensure that the reaction gas and reaction solid can smoothly react chemically in the cylinder, and at the same time, ensure that the chemical reaction in the cylinder will not cause harm to the human body, and improve the safety of the fluidized bed reactor. The first gas supply pipe group and the second gas supply pipe group are both arranged on the cylinder, and are connected to the reaction chamber of the cylinder to pass the reaction gas into the reaction chamber of the cylinder. The first gas supply pipe group is arranged at the bottom of the cylinder, the second gas supply pipe group is arranged on the peripheral side of the cylinder, and the second gas supply pipe group is at least two, and at least two second gas supply pipe groups are arranged at intervals along the circumference of the cylinder, so that the second gas supply pipe group can pass the reaction gas into the reaction chamber at multiple angles. At the same time, due to the different positions of the first gas supply pipe group and the second gas supply pipe group, it is beneficial for the reaction gas to form turbulence in the reaction chamber, so as to improve the reaction rate and reaction effect, and then improve the production capacity of the fluidized bed reactor. The extension directions of the first sub-gas supply pipe and the second sub-gas supply pipe in a portion of the second gas supply pipe groups intersect, and the outlets are opposite, which can prevent the outlets of each sub-gas supply pipe in the second gas supply pipe group from being blocked, thereby ensuring the smooth operation of the fluidized bed reactor, thereby helping to improve the production capacity of the fluidized bed reactor. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0029] Figure 1 A schematic diagram of a fluidized bed reactor provided in an embodiment of the present application;
[0030] Figure 2 for Figure 1 A partial enlarged view of part I;
[0031] Figure 3 A schematic diagram of a second gas supply pipe group in a fluidized bed reactor provided in an embodiment of the present application;
[0032] Figure 4 A top view of a distribution member in a fluidized bed reactor provided in an embodiment of the present application;
[0033] Figure 5 for Figure 1 A partial enlarged view of part II;
[0034] Figure 6 for Figure 1 A partial enlarged view of part III;
[0035] Figure 7 A top view of a support member in a fluidized bed reactor provided in an embodiment of the present application;
[0036] Figure 8 A cross-sectional view of a heat transfer pipe in a fluidized bed reactor provided in an embodiment of the present application;
[0037] Fig. 9 This is a schematic diagram of the connection principle of the heat pipes in the fluidized bed reactor provided in the embodiment of the present application.
[0038] Description of reference numerals:
[0039] 100- fluidized bed reactor;
[0040] 110-barrel; 111-reaction chamber; 1111-first chamber; 1112-second chamber; 112-opening;
[0041] 120-first air supply pipe group; 121-third sub-air supply pipe; 122-fourth sub-air supply pipe;
[0042] 130 - second air supply pipe group; 131 - first sub-air supply pipe; 132 - second sub-air supply pipe;
[0043] 140 - distribution member; 141 - first communication hole; 142 - second communication hole; 143 - third communication hole;
[0044] 150-discharge pipe;
[0045] 160-feeding pipe;
[0046] 170-heat pipe; 171-support member; 172-connector; 173-heat-conducting sleeve; 174-first protective member; 175-second protective member;
[0047] 180-separator; 181-discharging leg;
[0048] 190-Support seat. DETAILED DESCRIPTION
[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0050] In order to overcome the defects in the prior art, the present application provides a fluidized bed reactor, including a cylinder, a first gas supply pipe group and a second gas supply pipe group, wherein the first gas supply pipe group and the second gas supply pipe group are respectively arranged on the cylinder, and the reaction gas is introduced into the cylinder, wherein the outlet of the second gas supply pipe group is higher than the outlet of the first gas supply pipe group, and the outlet parts of each sub-gas supply pipe in the second gas supply pipe group are relative, which can facilitate the reaction gas to form turbulence in the reaction chamber, so as to improve the reaction efficiency and reaction effect, and further improve the production capacity. At the same time, the outlets of each sub-gas supply pipe in the second gas supply pipe group are relative, which can prevent the outlets of each sub-gas supply pipe from being blocked, and improve the smoothness of the reaction gas entering the cylinder through the second gas supply pipe group, so as to control the flow rate and flow of the reaction gas, so as to achieve further control of the reaction rate and quality, and then improve the production capacity of the fluidized bed reactor.
[0051] The contents of the present application will be described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand the contents of the present application more clearly and in detail.
[0052] For example, Figure 1-Figure 3 As shown, the present application provides a fluidized bed reactor 100 , comprising: a cylinder 110 , a first gas supply pipe group 120 and at least two second gas supply pipe groups 130 .
[0053] The cylinder 110 includes a reaction chamber 111. The first gas supply pipe group 120 is disposed at the bottom of the cylinder 110 and communicated with the reaction chamber 111, and can supply reaction gas into the reaction chamber 111.
[0054] At least two second gas supply pipe groups 130 are arranged at intervals on the circumferential side of the cylinder 110, and are connected to the reaction chamber 111, and reactant gas is introduced into the reaction chamber 111; the outlet of each second gas supply pipe group 130 is higher than the outlet of the first gas supply pipe group 120 in the vertical direction; each second gas supply pipe group 130 includes a first sub-gas supply pipe 131 and a second sub-gas supply pipe 132 arranged crosswise; the first sub-gas supply pipe 131 and the second sub-gas supply pipe 132 of each second gas supply pipe group 130 are alternately arranged in sequence along the same direction of the circumference of the cylinder 110; in at least two second gas supply pipe groups 130, the outlet of the first sub-gas supply pipe 131 of one and the outlet of the second sub-gas supply pipe 132 of the other are opposite.
[0055] According to the fluidized bed reactor 100 provided in the present application, the cylinder 110 has a reaction chamber 111, and the reaction chamber 111 is used to accommodate the reaction gas and the reaction solid to ensure that the reaction gas and the reaction solid can smoothly react chemically in the cylinder 110, and at the same time, ensure that the chemical reaction in the cylinder 110 will not cause harm to the human body, thereby improving the safety of the fluidized bed reactor 100. The first gas supply pipe group 120 and the second gas supply pipe group 130 are both arranged on the cylinder 110, and are connected to the reaction chamber 111 of the cylinder 110 to pass the reaction gas into the reaction chamber 111 of the cylinder 110. The first gas supply pipe group 120 is arranged at the bottom of the cylinder 110, and the second gas supply pipe group 130 is arranged on the peripheral side of the cylinder 110, and the second gas supply pipe group 130 is at least two, and at least two second gas supply pipe groups 130 are arranged at intervals along the circumference of the cylinder 110, so that the second gas supply pipe group 130 can pass the reaction gas into the reaction chamber 111 at multiple angles. At the same time, due to the different positions of the first gas supply pipe group 120 and the second gas supply pipe group 130, it is beneficial for the reaction gas to form turbulence in the reaction chamber 111, so as to improve the reaction rate and reaction effect, and then improve the production capacity of the fluidized bed reactor 100. The extension directions of some of the first sub-gas supply pipes 131 and the second sub-gas supply pipes 132 in the second gas supply pipe group 130 intersect, and the outlets are opposite, which can prevent the outlets of each sub-gas supply pipe of the second gas supply pipe group 130 from being blocked, so as to ensure the smooth operation of the fluidized bed reactor 100, thereby helping to improve the production capacity of the fluidized bed reactor 100.
[0056] The specific structure of the fluidized bed reactor 100 and various possible implementations are described in detail below.
[0057] The fluidized bed reactor 100 is a solid-gas reactor, in which the gas and solid participating in the reaction are introduced into the fluidized bed reactor 100, and the gas and solid undergo a chemical reaction to generate a reaction substance. For example, the gas participating in the reaction may be hydrogen chloride, and the solid participating in the reaction may be silicon powder. Accordingly, the reaction substance generated after the reaction is gaseous trichlorosilane, and the by-product generated during the reaction is silicon tetrachloride. The gas participating in the reaction may also be methyl chloride, and the solid participating in the reaction may be solid silicon powder. Accordingly, the reaction substance generated after the reaction is gaseous dimethyldichlorosilane. Of course, the gas and solid participating in the reaction are not limited to the substances described above, but may also be other materials, and this application does not limit this.
[0058] It is understandable that the outer shape of the cylinder 110 can be a quasi-circular column or a polygonal column, and this section does not make specific requirements on the outer shape of the cylinder 110. The cylinder 110 has a reaction chamber 111, and the inner shape of the reaction chamber 111 is not required in this section, as long as it can accommodate the required reaction solids and reaction gases and provide a containing space for the reaction solids and reaction gases to undergo chemical reactions.
[0059] The first gas supply pipe group 120 is arranged at the bottom of the cylinder 110, and is connected to the reaction chamber 111, and the reaction gas is passed into the reaction chamber 111. The first gas supply pipe group 120 can be arranged on the bottom wall of the cylinder 110, or on the bottom of the side wall of the cylinder 110. This section does not require the specific position of the first gas supply pipe group 120 on the cylinder 110. It is only necessary to ensure that the first gas supply pipe group 120 is connected to the cylinder 110 and the reaction gas is passed into the reaction chamber 111.
[0060] Furthermore, the second gas supply pipe group 130 is arranged on the peripheral side of the cylinder 110 and is connected to the reaction chamber 111, and the second gas supply pipe group 130 can introduce the reaction gas into the reaction chamber 111. In addition, along the vertical direction, the height of the outlet of the second gas supply pipe group 130 in the reaction chamber 111 is higher than that of the outlet of the first gas supply pipe group 120. In this way, after the reaction gas enters the reaction chamber 111 from different positions of the cylinder 110, it is easy to form turbulence to mix with the reaction solids in the reaction chamber 111 and react chemically. It can be understood that the formed turbulence is easy to disperse the reaction solids, thereby improving the reaction effect and further improving the production capacity of the fluidized bed reactor 100.
[0061] In the present embodiment, there may be two second gas supply pipe groups 130, and the two second gas supply pipe groups 130 are arranged at intervals along the circumference of the cylinder 110. In this way, the second gas supply pipe groups 130 can introduce reaction gases into the reaction chamber 111 from multiple angles, which is convenient for controlling the delivery amount of the reaction gases and controlling the rate of the chemical reaction. At the same time, through the mutual cooperation of the first gas supply pipe group 120 and the multiple second gas supply pipe groups 130, it is more conducive to the formation of turbulence and the flow of the reaction gases, so as to improve the reaction effect and the production capacity of the reaction substances.
[0062] Each of the second gas supply pipe groups 130 includes a first sub-gas supply pipe 131 and a second sub-gas supply pipe 132 which are arranged crosswise in the extending direction; in at least two second gas supply pipe groups 130, the outlet of the first sub-gas supply pipe 131 of one is opposite to the outlet of the second sub-gas supply pipe 132 of the other. In this way, during the flow of the reaction gas, the reaction gas can counteract the outlets of the first sub-gas supply pipe 131 and the second sub-gas supply pipe 132 which are arranged opposite to each other, effectively preventing the reaction solids from blocking the outlets of the first sub-gas supply pipe 131 and the second sub-gas supply pipe 132, thereby ensuring the continuous and stable flow of the reaction gas, ensuring the reaction effect, and steadily improving the production capacity of the fluidized bed reactor 100.
[0063] It should be noted that the first sub-air supply pipe 131 and the second sub-air supply pipe 132 are arranged crosswise, and the first sub-air supply pipe 131 and the second sub-air supply pipe 132 of the second air supply pipe group 130 are arranged alternately in the same direction of the circumference of the cylinder 110. There is an angle between the first sub-air supply pipe 131 and the second sub-air supply pipe 132, and this section does not make specific requirements on the range of the angle, and only needs to ensure that after the second air supply pipe group 130 and the cylinder 110 are installed, the outlets of the spaced first sub-air supply pipe 131 and the second sub-air supply pipe 132 are opposite.
[0064] It is not difficult to understand that the second air supply pipe groups 130 can also be 4, 6, 8, etc., and are not limited to the number mentioned in the above examples. This section does not make specific requirements on the number of second air supply pipe groups 130. When there are two or more second air supply pipe groups 130, the outlets of the first sub-air supply pipes 131 and the outlets of the second sub-air supply pipes 132 of the adjacent second air supply pipe groups 130 can be opposite to each other, or the outlets of the first sub-air supply pipes 131 and the outlets of the second sub-air supply pipes 132 of the alternate second air supply pipe groups 130 can be opposite to each other.
[0065] Possibly, there is a spacing between the outlet of the first sub-gas supply pipe 131 and the outlet of the second sub-gas supply pipe 132, and the range of the spacing is 30 to 500 mm. In this way, it can be ensured that the spacing between the outlet of the first sub-gas supply pipe 131 and the outlet of the second sub-gas supply pipe 132 is relative within the range, and the reaction gas flowing out of each outlet can interact with the outlet of the first sub-gas supply pipe 131 or the outlet of the second sub-gas supply pipe 132 on the opposite side to prevent the outlet of the second gas supply pipe group 130 from being blocked.
[0066] Exemplarily, the distance between the outlet of the first sub-air supply pipe 131 and the outlet of the second sub-air supply pipe 132 can be 30 mm, 58 mm, 200 mm, 470 mm, 500 mm, etc. This section does not make specific requirements on the distance between the outlet of the first sub-air supply pipe 131 and the outlet of the second sub-air supply pipe 132, and any value within the above range is acceptable.
[0067] Possible, such as Figure 3 As shown, there are multiple second gas supply pipe groups 130, and the multiple second gas supply pipe groups 130 are sequentially spaced along the circumference of the cylinder 110; in the two spaced second gas supply pipe groups 130, the outlet of the first sub-gas supply pipe 131 of one and the outlet of the second sub-gas supply pipe 132 of the other are opposite. In this way, it is ensured that each outlet of the multiple second gas supply pipe groups 130 can be offset by the reaction gas, preventing the reaction solid from being stuck between the first sub-gas supply pipe 131 and the second sub-gas supply pipe 132, and at the same time, it can prevent the reaction solid with small particle size from blocking the outlet of the first sub-gas supply pipe 131 and / or the second sub-gas supply pipe 132, so as to improve the smoothness of the reaction gas entering the reaction chamber 111 through the second gas supply pipe group 130.
[0068] In some embodiments, in adjacent second gas supply pipe groups 130, the extension direction of the first sub-gas supply pipe 131 of one and the second sub-gas supply pipe 132 of the other intersect. In this way, when the reaction gas forms turbulence in the reaction chamber 111, the impact force of the turbulence hitting the second gas supply pipe group 130 can be reduced, so that the second gas supply pipe group 130 remains stable. And it can ensure that the outlets of the adjacent first sub-gas supply pipe 131 and the second sub-gas supply pipe 132 that alternate in sequence are opposite.
[0069] During the actual installation of the second air supply pipe group 130 and the cylinder 110, a mounting position is reserved on the side wall of the cylinder 110, and the first sub-air supply pipe 131 and the second sub-air supply pipe 132 are inserted into the corresponding reserved positions and connected to the cylinder 110. It should be noted that the first sub-air supply pipe 131, the second sub-air supply pipe 132 and the cylinder 110 are detachably connected to facilitate the disassembly, maintenance and replacement of each of the first and second sub-air supply pipes 132.
[0070] It should be noted that Figure 3 An example is given, which includes 8 second air supply pipe groups 130. Each second air supply pipe group 130 includes a first sub-air supply pipe 131 and a second sub-air supply pipe 132. It should be noted that the second air supply pipe group 130 is not limited to the 8 shown in the example in the figure. This section does not limit the specific number of the second air supply pipe group 130. In actual use, a reasonable selection can be made based on the diameter of the cylinder 110.
[0071] Optional, combined Figure 1 , Figure 2 and Figure 4The fluidized bed reactor 100 further includes a distribution member 140 located in the reaction chamber 111. In the vertical direction, the distribution member 140 is located between the first gas supply pipe group 120 and the second gas supply pipe group 130. The distribution member 140 divides the reaction chamber 111 into a first chamber 1111 and a second chamber 1112. The distribution member 140 has first connecting holes 141 distributed in an array, and the first connecting holes 141 connect the first chamber 1111 and the second chamber 1112. In this way, the reaction gas enters the first chamber 1111 from the bottom of the cylinder 110, and then enters the second chamber 1112 through the first connecting holes 141 distributed in an array on the distribution member 140, so that the reaction gas can be evenly distributed in the reaction chamber 111, thereby improving the reaction effect of the reaction gas and the reaction solid, and further improving the production capacity of the reaction material.
[0072] It should be noted that the distribution member 140 can be a straight member or a conical member. The distribution member 140 is in the reaction chamber 111 and is detachably connected to the inner wall of the cylinder 110 to facilitate the disassembly and maintenance of the distribution member 140. The first connecting holes 141 on the distribution member 140 are distributed in an array. It can be understood that the first connecting holes 141 can use the center of the distribution member 140 as the array origin and be arranged in an equal spacing or non-uniform spacing. In this way, after the reaction gas enters the second chamber 1112 from the first chamber 1111 through each of the first connecting holes 141, the reaction gas is dispersed more evenly, thereby improving the reaction effect of the reaction gas and the reaction solid.
[0073] Possibly, a distributor (not shown in the figure) may be provided on the distribution member 140, and the distributor and the first connecting hole 141 on the distribution member 140 are provided in a one-to-one correspondence, and the distributor and the distribution member 140 are detachably connected to each other so as to replace the distributor. The first connecting hole 141 may be a threaded hole, and the distributor and the distribution member 140 are threadedly connected through the first connecting hole 141. The distributor has a through hole, and the through hole connects the first chamber 1111 and the second chamber 1112, and the reaction gas enters the second chamber 1112 from the first chamber 1111 through the upper through hole on the distributor.
[0074] In some embodiments, the first gas supply pipe group 120 vertically introduces the reaction gas into the reaction chamber 111; the gas supply direction of each second gas supply pipe group 130 intersects with the gas supply direction of the first gas supply pipe group 120. In this way, the reaction gas is introduced into the reaction chamber 111 from different positions and angles, which makes it easier to form turbulence, disperse the reaction solids, and have good contact with the reaction solids, thereby improving the reaction rate and reaction effect, and then helping to improve the production capacity of the fluidized bed reactor 100.
[0075] It should be noted that the vertical direction mentioned in the present application refers to the extension direction of the cylinder 110. In other words, the fluidized bed reactor 100 of this part is vertical.
[0076] like Figure 1 and Figure 2 As shown, the first gas supply pipe group 120 includes a third sub-gas supply pipe 121, which is disposed on the bottom surface of the cylinder 110 in the vertical direction and is connected to the first chamber 1111. The third sub-gas supply pipe 121 introduces the reaction gas into the first chamber 1111, and the reaction gas is uniformly introduced into the second chamber 1112 from the first chamber 1111 through the distribution member 140.
[0077] Possibly, the first gas supply pipe group 120 further includes a fourth sub-gas supply pipe 122, and a portion of the fourth sub-gas supply pipe 122 is located in the first chamber 1111; the distribution member 140 has a second connecting hole 142, and the fourth sub-gas supply pipe 122 is connected to the second chamber 1112 through the second connecting hole 142. In this way, the reaction gas is introduced into the reaction chamber 111 through the fourth sub-gas supply pipe 122, and the pathway for the reaction gas to enter the reaction chamber 111 is increased, so as to improve the flexibility of the fluidized bed reactor 100 and further improve the production efficiency and capacity of the reaction material.
[0078] As a possible implementation, the fluidized bed reactor 100 further includes a discharge pipe 150, which is partially located in the first chamber 1111; the distribution member 140 has a third connecting hole 143, and the discharge pipe 150 is connected to the second chamber 1112 and the outside of the cylinder 110 through the third connecting hole 143. When the reaction solids are deposited on the distribution member 140, they can be discharged from the third connecting hole 143 on the distribution member 140, and discharged to the outside of the cylinder 110 through the discharge pipe 150, thereby reducing the probability of the reaction solids blocking the first connecting hole 141 on the distribution member 140, and ensuring the uniformity of the reaction gas flowing through the distribution member 140. At the same time, due to the provision of the third connecting hole 143, the reaction solids deposited on the distribution member 140 can be discharged continuously, so that the interval of shutdown and maintenance can be effectively extended, ensuring the working continuity of the fluidized bed reactor 100, so that the fluidized bed reactor 100 can operate for a long period of time.
[0079] It should be noted that the number of the third connecting holes 143 can be multiple, and the multiple third connecting holes 143 are distributed at intervals along the circumference of the distribution member 140. Accordingly, the discharge pipe 150 and the corresponding end of the distribution member 140 have multiple inlets, and the inlets of the discharge pipe 150 and the third connecting holes 143 are arranged one by one. In this way, the reaction solids deposited on the distribution member 140 enter the discharge pipe 150 through each third connecting hole 143 and are discharged from the outside of the cylinder 110. The provision of multiple third connecting holes 143 can also reduce the probability of the reaction solids deposited on the distribution member 140 blocking the third connecting holes 143, thereby making the deposited reaction solids discharged more smoothly.
[0080] The fluidized bed reactor 100 further includes a feed pipe 160, which is disposed on the side of the cylinder 110 and communicates with the reaction chamber 111; in the vertical direction, the outlet of the feed pipe 160 is higher than each second gas supply pipe group 130. In this way, when the reaction solid enters the reaction chamber 111, it will be dispersed by the turbulence formed by the reaction gas in the reaction chamber 111, so that the reaction gas and the reaction solid are in better contact, thereby improving the reaction rate and reaction effect, and further improving the overall production capacity of the fluidized bed reactor 100.
[0081] Possibly, the top of the cylinder 110 has an opening 112 communicating with the reaction chamber 111, and the opening 112 is configured to discharge the reaction material, so as to facilitate the discharge of the reaction material from the reaction chamber 111, so as to achieve stable continuous production.
[0082] In some embodiments, in combination Figure 1 , Figure 5-Figure 9 The fluidized bed reactor 100 further includes a heat pipe 170 and a support 171 located in the reaction chamber 111. The heat pipe 170 is inserted through the support 171, and the support 171 is connected to the inner wall of the cylinder 110; the first heat transfer medium in the heat pipe 170 is thermally connected to the reaction chamber 111. In this way, the heat pipe 170 is relatively stably connected to the cylinder 110 through the support 171, and the first heat transfer medium flowing in the heat pipe 170 is thermally connected to the reaction chamber 111, so that part of the heat in the reaction chamber 111 is taken away by the flow of the first heat transfer medium in the heat pipe 170, thereby realizing temperature control in the reaction chamber 111, so as to control the reaction rate and reaction effect, reduce the formation of reaction by-products, and improve the production capacity and purity of the reactants.
[0083] Exemplarily, the support member 171 may be a grid structure.
[0084] Possibly, adjacent heat pipes 170 are supported and welded by connectors 172 to keep the heat pipes 170 stable in the reaction chamber 111. The orthographic projection of each heat pipe 170 on a horizontal plane is displayed in a hexagonal structure array. Of course, each heat pipe 170 can also be arranged in a square, which is convenient for cleaning and purging of the heat pipe 170, improving the reaction efficiency of the fluidized bed reactor 100, and further improving the production capacity of the reaction material.
[0085] Exemplarily, there may be 160 heat-conducting pipes 170 in the reaction chamber 111, with 10 heat-conducting pipes 170 in each group connected in series, forming a total of 16 groups of heat-conducting pipes 170 connected in series, and then the 16 groups of heat-conducting pipes 170 connected in series are connected in parallel in pairs, forming 8 groups of mutually independent parallel heat-conducting pipes 170. Each group of heat-conducting pipes 170 has an inlet and an outlet for a first heat-conducting medium, forming a total of 8 inlets and outlets for the first heat-conducting medium. The 8 inlets and outlets for the first heat-conducting medium are arranged in sequence along the circumference of the cylinder 110.
[0086] The fluidized bed reactor 100 further includes a plurality of heat-conducting sleeves 173, which are sequentially distributed along the axial direction of the barrel 110, and each heat-conducting sleeve 173 is disposed on the outer wall of the barrel 110; the second heat-conducting medium in the heat-conducting sleeve 173 is thermally conductive to the barrel 110. In this way, the temperature in the reaction chamber 111 is further reduced by connecting the heat-conducting sleeve 173 to the outer wall of the barrel 110, which is conducive to reducing the generation of reaction by-products, improving the purity and production capacity of the reaction substances, and at the same time protecting the barrel 110 to prevent the barrel 110 from being damaged by excessive temperature. In addition, each heat-conducting sleeve 173 is independent of each other, so that the temperature of the barrel 110 is easy to control.
[0087] It should be noted that the first heat-conducting medium and the second heat-conducting medium in the present application can be the same substance or different substances. For example, the first heat-conducting medium and the second heat-conducting medium can be thermal grease. In this way, the temperature inside the reaction chamber 111 is maintained at 320°C-360°C through the heat-conducting pipe 170 and the heat-conducting sleeve 173 in the present application.
[0088] Furthermore, the fluidized bed reactor 100 further includes a first protective member 174 and a second protective member 175, which are stacked and wrap each heat-conducting sleeve 173. In this way, the heat-conducting sleeve 173 is prevented from being damaged during the transportation of the fluidized bed reactor 100, thereby improving the safety and stability of the fluidized bed reactor 100 and further ensuring the production capacity of the fluidized bed reactor 100.
[0089] Exemplarily, the first protective member 174 is a metal plate, such as an aluminum plate, etc., and the second protective member 175 is a heat-insulating plate, such as high-temperature resistant glass wool, etc. In this way, by providing the first protective member 174 and the second protective member 175, the temperature in the reaction chamber 111 can be kept stable in some special temperature environments, thereby improving the purity and productivity of the reaction substances.
[0090] The fluidized bed reactor 100 further includes at least one separator 180, which is disposed at the opening 112 of the cylinder 110; the separator 180 is configured to separate the reaction solid from the reaction material, and pass the separated reaction solid into the reaction chamber 111. In this way, the reaction material is separated from the reaction solid, thereby preventing the reaction solid from being carried out by the reaction material, causing waste of materials. Possibly, the number of separators 180 can be one or more. The separator 180 can be disposed inside the cylinder 110, or it can be disposed outside the cylinder 110.
[0091] like Figure 1 As shown, when the separator 180 is disposed in the barrel 110, the inlet of the separator 180 is connected to the reaction chamber 111, and the outlet of the separator 180 is connected to the opening 112 on the barrel 110, so that the reaction material enters the separator 180 through the inlet of the separator 180, and the reaction material is discharged through the outlet and the opening 112 on the barrel 110. The reaction solid separated from the reaction material returns to the reaction chamber 111 through the discharge leg 181 of the separator 180, and then continues to participate in the reaction.
[0092] Of course, in some embodiments, the separator 180 and the discharge leg 181 are detachably connected, and an additional discharge leg 181 can be arranged on the cylinder 110 as a backup, and when one of the discharge legs 181 is blocked, it can be replaced in time. In addition, the discharge leg 181 can be stably arranged in the reaction chamber 111 through the support member 171.
[0093] Possibly, the fluidized bed reactor 100 further includes a temperature sensor, a pressure sensor and a controller. The temperature sensor and the pressure sensor are both electrically connected to the controller, the temperature sensor is used to detect the temperature in the reaction chamber 111, the pressure sensor is used to detect the pressure in the reaction chamber 111, the controller responds to the signals of the pressure sensor and the temperature sensor, and feeds back the relevant temperature information and pressure information, so that the staff can control the fluidized bed reactor 100 according to the real-time monitoring data, thereby improving the reaction rate of the fluidized bed reactor 100 and further improving the production capacity of the reaction material.
[0094] Possibly, the fluidized bed reactor 100 further includes a support base 190, which can be disposed on a side of the heat-conducting sleeve 173 away from the cylinder 110, and relatively fixedly connected to the heat-conducting sleeve 173, for example, by welding, etc. This can not only meet the heat dissipation requirements of the heat-conducting sleeve 173 for the cylinder 110, but also facilitate the support and transportation of the cylinder 110.
[0095] The present application provides a fluidized bed reactor 100, comprising: a cylinder 110, a first gas supply pipe group 120 and at least two second gas supply pipe groups 130. The cylinder 110 comprises a reaction chamber 111. The first gas supply pipe group 120 is disposed at the bottom of the cylinder 110 and communicates with the reaction chamber 111. At least two second gas supply pipe groups 130 are arranged at intervals on the circumferential side of the cylinder 110 and are connected to the reaction chamber 111; the outlet of each second gas supply pipe group 130 is higher than the outlet of the first gas supply pipe group 120 in the vertical direction; each second gas supply pipe group 130 includes a first sub-gas supply pipe 131 and a second sub-gas supply pipe 132 arranged crosswise; wherein the first sub-gas supply pipe 131 and the second sub-gas supply pipe 132 of each second gas supply pipe group 130 are arranged alternately in sequence along the same direction of the circumference of the cylinder 110; in at least two second gas supply pipe groups 130, the outlet of the first sub-gas supply pipe 131 of one is opposite to the outlet of the second sub-gas supply pipe 132 of the other. Through such a structural arrangement, the production capacity of the fluidized bed reactor 100 can be improved.
[0096] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.
[0097] In general, terms should be understood, at least in part, by the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending, at least in part, on the context. Similarly, terms such as "a," "an," or "the" may also be understood to convey singular usage or to convey plural usage, depending, at least in part, on the context.
[0098] It should be easily understood that the terms “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” means not only “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).
[0099] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.
[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A fluidized bed reactor (100), characterized in that: include: A cylinder (110), wherein the cylinder (110) comprises a reaction chamber (111); A first gas supply pipe group (120), the first gas supply pipe group (120) is arranged at the bottom of the cylinder (110) and is connected to the reaction chamber (111); At least two second gas supply pipe groups (130), at least two second gas supply pipe groups (130) are arranged at intervals on the peripheral side of the cylinder (110) and are connected to the reaction chamber (111); the outlet of each second gas supply pipe group (130) is higher than the outlet of the first gas supply pipe group (120) in the vertical direction; each second gas supply pipe group (130) comprises a first sub-gas supply pipe (131) and a second sub-gas supply pipe (132) which are arranged crosswise in the extension direction; The first sub-air supply pipes (131) and the second sub-air supply pipes (132) of each of the second air supply pipe groups (130) are arranged alternately in sequence along the same direction of the circumference of the cylinder (110); In at least two of the second air supply pipe groups (130), an outlet of the first sub-air supply pipe (131) of one and an outlet of the second sub-air supply pipe (132) of the other are opposite to each other.
2. The fluidized bed reactor (100) according to claim 1, characterized in that: There are a plurality of the second air supply pipe groups (130), and the plurality of the second air supply pipe groups (130) are sequentially spaced apart along the circumference of the cylinder (110); In the spaced second air supply pipe groups (130), the outlet of the first sub-air supply pipe (131) of one and the outlet of the second sub-air supply pipe (132) of the other are opposite to each other.
3. The fluidized bed reactor (100) according to claim 2, characterized in that: In adjacent second air supply pipe groups (130), the extension directions of the first sub-air supply pipe (131) of one and the second sub-air supply pipe (132) of the other intersect.
4. The fluidized bed reactor (100) according to any one of claims 1 to 3, characterized in that: It also includes a distribution member (140) located in the reaction chamber (111); along the vertical direction, the distribution member (140) is located between the first gas supply pipe group (120) and the second gas supply pipe group (130); the distribution member (140) divides the reaction chamber (111) into a first chamber (1111) and a second chamber (1112); The distribution member (140) has first connecting holes (141) distributed in an array, and the first connecting holes (141) connect the first chamber (1111) and the second chamber (1112).
5. The fluidized bed reactor (100) according to claim 4, characterized in that: The first gas supply pipe group (120) introduces reaction gas into the reaction chamber (111) along the vertical direction; The gas supply direction of each of the second gas supply pipe groups (130) intersects with the gas supply direction of the first gas supply pipe group (120).
6. The fluidized bed reactor (100) according to claim 5, characterized in that: The first air supply pipe group (120) comprises a third sub-air supply pipe (121). Along the vertical direction, the third sub-air supply pipe (121) is arranged on the bottom surface of the cylinder (110) and is connected to the first chamber (1111).
7. The fluidized bed reactor (100) according to claim 5, characterized in that: The first air supply pipe group (120) further includes a fourth sub-air supply pipe (122), and a portion of the fourth sub-air supply pipe (122) is located in the first chamber (1111); The distribution member (140) has a second communication hole (142), and the fourth sub-gas supply pipe (122) is connected to the second chamber (1112) through the second communication hole (142).
8. The fluidized bed reactor (100) according to claim 4, characterized in that: It also includes a discharge pipe (150), wherein a portion of the discharge pipe (150) is located in the first chamber (1111); The distribution member (140) has a third communicating hole (143), and the discharge pipe (150) is connected to the second chamber (1112) and the outside of the cylinder (110) through the third communicating hole (143).
9. The fluidized bed reactor (100) according to any one of claims 1 to 3, characterized in that: It also includes a feed pipe (160), wherein the feed pipe (160) is disposed on the side of the barrel (110) and is connected to the reaction chamber (111); Along the vertical direction, the outlet of the feed pipe (160) is higher than each of the second gas supply pipe groups (130).
10. The fluidized bed reactor (100) according to claim 9, characterized in that: The top of the cylinder (110) is provided with an opening (112), and the opening (112) is arranged at the top of the cylinder (110) along the vertical direction, and the opening (112) is used for the reaction material in the cylinder (110) to be discharged.