Fluidized bed reactor

Abstract

The present application relates to the technical field of chemical equipment, and provides a fluidized bed reactor, including: a cylinder, a first feed pipe, a second feed pipe and a thermal management device. The cylinder has a reaction chamber, and a first opening, a second opening, a third opening and a fourth opening connected to the reaction chamber; the first opening is located at the bottom of the cylinder, the second opening and the third opening are both located on the side of the cylinder, the third opening is higher than the second opening on the cylinder, and the fourth opening is located at the top of the cylinder. The first feed pipe is connected to the reaction chamber through the first opening and the second opening respectively, and the first material is introduced into the reaction chamber. The second feed pipe is connected to the reaction chamber through the third opening and the second material is introduced into the reaction chamber. The first material and the second material react in the reaction chamber to generate a reaction substance, and the reaction substance is discharged through the fourth opening. Part of the thermal management device is located in the cylinder to make the temperature in the reaction chamber adjustable. Such a fluidized bed reactor is used to increase the production capacity of the reaction substance.

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. Summary of the invention

[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 having a reaction chamber, and a first opening, a second opening, a third opening and a fourth opening connected to the reaction chamber; the first opening is located at the bottom of the cylinder, the second opening and the third opening are both located at the side of the cylinder, and along the vertical direction, the third opening is higher than the second opening on the cylinder, and the fourth opening is located at the top of the cylinder;

[0008] a first feed pipe, the first feed pipe being connected to the reaction chamber through the first opening and the second opening respectively, and introducing a first material into the reaction chamber;

[0009] a second feed pipe, the second feed pipe being connected to the reaction chamber through the third opening and feeding a second material into the reaction chamber;

[0010] The first material and the second material react in the reaction chamber to generate a reaction substance, and the reaction substance is discharged through the fourth opening;

[0011] A heat management device, part of which is located in the barrel so that the temperature in the reaction chamber can be adjusted.

[0012] As a possible implementation, there are multiple second openings, and the multiple second openings are arranged at intervals around the circumference of the cylinder;

[0013] The first feed pipes correspond to the second openings one by one, each of the first feed pipes is passed through the second opening, and outlets of at least some of the first feed pipes are arranged opposite to each other.

[0014] As a possible implementation manner, the fluidized bed reactor further includes a distribution member located in the reaction chamber, the distribution member is located downstream of the first feed pipe, and along the vertical direction, the height of the distribution member is lower than the second opening, and the distribution member divides the reaction chamber into a first chamber and a second chamber;

[0015] 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.

[0016] As a possible implementation manner, the fluidized bed reactor further includes a connecting pipe, and a portion of the connecting pipe is located in the first chamber;

[0017] The distribution member has a second communicating hole, and the connecting pipe is connected with the second chamber through the second communicating hole;

[0018] The connecting pipe is configured to pass the first material into the second chamber.

[0019] 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;

[0020] 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.

[0021] As a possible implementation manner, the thermal management device includes a heat conducting pipe and a support member located in the reaction chamber, the heat conducting pipe is passed through the support member, and the support member is connected to the inner wall of the cylinder;

[0022] The first heat conducting medium in the heat conducting pipe is thermally connected to the reaction chamber.

[0023] As a possible implementation manner, the thermal management device further includes a plurality of heat-conducting sleeves, the plurality of heat-conducting sleeves are sequentially spaced apart along the axial direction of the cylinder, and each heat-conducting sleeve is disposed on the outer wall of the cylinder;

[0024] The second heat-conducting medium in the heat-conducting sleeve is thermally connected to the cylinder.

[0025] As a possible implementation manner, the thermal management device further includes a first protective member and a second protective member, wherein the first protective member and the second protective member are stacked and wrap each of the thermally conductive sleeves.

[0026] As a possible implementation manner, the fluidized bed reactor further includes at least one separator, and at least one separator is disposed at the fourth opening;

[0027] The separator is configured to separate the second material from the reaction material and pass the separated second material into the reaction chamber.

[0028] As a possible implementation manner, at least one of the separators is located in the reaction chamber, and the separator has a discharge leg, and the discharge leg is passed through the support member.

[0029] The fluidized bed reactor provided in the present application has a cylinder having a reaction chamber, and a first opening, a second opening, a third opening and a fourth opening connected to the reaction chamber, wherein the first opening is located at the bottom of the cylinder, the second opening and the third opening are both located at the side of the cylinder, and in the vertical direction, the third opening is higher than the second opening on the cylinder. The first feed pipe passes the first material into the reaction chamber from multiple angles through the first opening and the second opening, so that the first material forms turbulence in the reaction chamber. The second feed pipe passes the second material into the reaction chamber through the third opening. Since the height of the third opening is higher than the first opening and the second opening, after the second material enters the reaction chamber through the second opening, it is quickly dispersed under the turbulence of the first material, and is fully in contact with the first material, and reacts and generates reaction substances at the same time, and the reaction substances are discharged through the fourth opening on the cylinder, so as to improve the reaction quality and reaction efficiency, and further improve the production capacity of the reaction substances. The first material and the second material will release heat during the reaction process. The temperature in the reaction chamber can be adjusted through the thermal management device located in the reaction chamber, so that the temperature in the reaction chamber is maintained within a reasonable range, thereby controlling the reaction rate between the first material and the second material and the reaction, and reducing the formation of by-products while increasing the reaction rate, thereby improving the reaction quality and further increasing the production capacity of the reaction material. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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.

[0031] Figure 1 A schematic diagram of a fluidized bed reactor provided in an embodiment of the present application;

[0032] Figure 2 for Figure 1 A partial enlarged view of part I;

[0033] Figure 3 Structure 1 of the first feed pipe in the fluidized bed reactor provided in an embodiment of the present application;

[0034] Figure 4 Structure 2 of the first feed pipe in the fluidized bed reactor provided in an embodiment of the present application;

[0035] Figure 5 A top view of a distribution member in a fluidized bed reactor provided in an embodiment of the present application;

[0036] Figure 6 for Figure 1 A partial enlarged view of part II;

[0037] Figure 7 for Figure 1 A partial enlarged view of part III;

[0038] Figure 8 A top view of a support member in a fluidized bed reactor provided in an embodiment of the present application;

[0039] Fig. 9 A cross-sectional view of a heat transfer pipe in a fluidized bed reactor provided in an embodiment of the present application;

[0040] Fig.10 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.

[0041] Description of reference numerals:

[0042] 100- fluidized bed reactor;

[0043] 110-barrel; 111-reaction chamber; 1111-first chamber; 1112-second chamber; 112-first opening; 113-second opening; 114-third opening; 115-fourth opening;

[0044] 120- a first feed pipe;

[0045] 130 - second feed pipe;

[0046] 140-heat management device; 141-heat pipe; 142-support member; 143-heat conductive sleeve; 144-connector; 145-first protective member; 146-second protective member;

[0047] 150 - distribution member; 151 - first communication hole; 152 - second communication hole; 153 - third communication hole;

[0048] 160-connecting pipe;

[0049] 170-discharge pipe;

[0050] 180-support seat;

[0051] 190-separator; 191-discharge support leg. DETAILED DESCRIPTION

[0052] 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.

[0053] In order to overcome the defects in the prior art, the present application provides a fluidized bed reactor, including: a cylinder, a first feed pipe, a second feed pipe and a thermal management device. The cylinder has a reaction chamber, and a first opening, a second opening, a third opening and a fourth opening connected to the reaction chamber; the first opening is located at the bottom of the cylinder, the second opening and the third opening are both located on the side of the cylinder, and the third opening is higher than the second opening on the cylinder, and the fourth opening is located at the top of the cylinder. The first feed pipe is connected to the reaction chamber through the first opening and the second opening respectively, and the first material is introduced into the reaction chamber. The second feed pipe is connected to the reaction chamber through the third opening, and the second material is introduced into the reaction chamber. The first material and the second material react in the reaction chamber to generate a reaction substance, and the reaction substance is discharged through the fourth opening. Part of the thermal management device is located in the cylinder so that the temperature in the reaction chamber can be adjusted. Such a fluidized bed reactor is used to increase the production capacity of the reaction substance.

[0054] 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.

[0055] Combination Figure 1-Figure 10 The present application provides a fluidized bed reactor 100 , including: a barrel 110 , a first feed pipe 120 , a second feed pipe 130 and a thermal management device 140 .

[0056] The barrel 110 has a reaction chamber 111, and a first opening 112, a second opening 113, a third opening 114 and a fourth opening 115 connected to the reaction chamber 111; the first opening 112 is located at the bottom of the barrel 110, the second opening 113 and the third opening 114 are both located at the side of the barrel 110, and along the vertical direction, the third opening 114 is higher than the second opening 113 on the barrel 110, and the fourth opening 115 is located at the top of the barrel 110.

[0057] The first feeding pipe 120 is connected to the reaction chamber 111 through the first opening 112 and the second opening 113 respectively, and introduces the first material into the reaction chamber 111 .

[0058] The second material supply pipe 130 is in communication with the reaction chamber 111 through the third opening 114 , and introduces the second material into the reaction chamber 111 .

[0059] The first material and the second material react in the reaction chamber 111 to generate a reaction substance, and the reaction substance is discharged through the fourth opening 115 .

[0060] Part of the heat management device 140 is located inside the barrel 110 so that the temperature inside the reaction chamber 111 can be adjusted.

[0061] According to the fluidized bed reactor 100 provided in the present application, the barrel 110 has a reaction chamber 111, and a first opening 112, a second opening 113, a third opening 114, and a fourth opening 115 connected to the reaction chamber 111. The first opening 112 is located at the bottom of the barrel 110, the second opening 113 and the third opening 114 are both located at the side of the barrel 110, and the third opening 114 is at a height higher than the second opening 113 on the barrel 110. The first feed pipe 120 passes the first material into the reaction chamber 111 from multiple angles through the first opening 112 and the second opening 113, so that the first material forms a turbulent flow in the reaction chamber 111. The second feed pipe 130 introduces the second material into the reaction chamber 111 through the third opening 114. Since the height of the third opening 114 is higher than the first opening 112 and the second opening 113, after the second material enters the reaction chamber 111 through the second opening 113, it is quickly dispersed under the turbulence of the first material and fully contacts with the first material, and a chemical reaction occurs at the same time to generate a reaction substance, which is discharged through the fourth opening 115 on the cylinder 110. In this way, the reaction quality and reaction efficiency are improved, and the production capacity of the reaction substance is further improved. The first material and the second material will release heat during the reaction process. The temperature in the reaction chamber 111 is adjustable through the thermal management device 140 located in the reaction chamber 111, so that the temperature in the reaction chamber 111 is maintained within a reasonable range, thereby controlling the reaction rate and the reaction between the first material and the second material, and reducing the formation of by-products while improving the reaction rate, thereby improving the reaction quality and further improving the production capacity of the reaction substance.

[0062] The specific structure of the fluidized bed reactor 100 and various possible implementations are described in detail below.

[0063] First, it should be noted that the first material in the present embodiment can be gaseous hydrogen chloride, and the second material can be solid silicon powder. Correspondingly, the reaction substance is gaseous trichlorosilane, and the by-product produced during the reaction is silicon tetrachloride. The first material can also be gaseous methyl chloride, and the second material can be solid silicon powder. Correspondingly, the reaction substance generated by the reaction of the first material and the second material is gaseous dimethyldichlorosilane. Of course, the first material and the second material are not limited to the materials described above, but can also be other materials, and the present application does not limit this. In addition, the vertical direction can be the axial direction of the cylinder 110.

[0064] Exemplarily, the outer shape of the barrel 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 barrel 110. The barrel 110 has a reaction chamber 111, and this section does not make any requirements on the internal shape of the reaction chamber 111, as long as it can accommodate the required first material and second material and provide a containing space for the first material and the second material to undergo a chemical reaction.

[0065] The cylinder wall of the cylinder 110 is provided with a first opening 112, a second opening 113, a third opening 114 and a fourth opening 115 which are connected to the reaction chamber 111. The first opening 112 is located at the bottom of the cylinder 110, and the first feed pipe 120 is connected to the cylinder 110 through the first opening 112, and the first material is introduced into the reaction chamber 111. The second opening 113 is provided at the side of the cylinder 110, and the first feed pipe 120 is connected to the reaction chamber 111 of the cylinder 110 through the second opening 113, and the first material is introduced into the reaction chamber 111. In this way, the positions of the first opening 112 and the second opening 113 are different, and the first material is easy to form turbulence after entering the reaction chamber 111 from the first opening 112 and the second opening 113.

[0066] Furthermore, the third opening 114 is also located at the side of the barrel 110, and along the vertical direction, the third opening 114 is higher than the second opening 113 on the barrel 110. The second feed pipe 130 and the barrel 110 are connected to the reaction chamber 111 through the third opening 114, and the second material is introduced into the reaction chamber 111. The second material enters the reaction chamber 111, is impacted and dispersed by the fluid power of the first material, and chemically reacts with each other to generate reaction substances.

[0067] The fourth opening 115 is disposed at the top of the cylinder 110 . The reaction material flows in the reaction chamber 111 to the fourth opening 115 and is discharged from the fourth opening 115 .

[0068] In this way, by arranging the first opening 112 , the second opening 113 , and the third opening 114 at different positions on the cylinder 110 , the efficiency and effect of the reaction between the first material and the second material can be improved, thereby promoting an increase in production capacity.

[0069] The first material and the second material will release heat during the reaction process. If there is too much heat, the temperature in the reaction chamber 111 will rise, and the first material and the second material will form by-products, resulting in a decrease in the production capacity of the reaction material, and the purity of the reaction material will also be affected. Therefore, in this application, part of the thermal management device 140 is located in the barrel 110, and the temperature in the reaction chamber 111 is adjusted to keep the temperature in the reaction chamber 111 at 320°C-360°C.

[0070] In some embodiments, the second opening 113 is disposed at the bottom of the thermal management device 140 located in the barrel 110, and the first feed pipe 120 corresponding to the second opening 113 is in close contact with the bottom of the thermal management device 140 located in the barrel 110. In this way, the first material and the second material are prevented from colliding with the first feed pipe 120 and the thermal management device 140 during the reaction, so that the fluidized bed reactor 100 remains stable.

[0071] In some embodiments, there are multiple second openings 113, and the multiple second openings 113 are arranged at intervals around the circumference of the cylinder 110; the first feed pipe 120 and the second opening 113 correspond one to one, and each first feed pipe 120 is inserted into the second opening 113, and the outlets of at least some of the first feed pipes 120 are arranged relatively. In this way, the first material can be introduced into the reaction chamber 111 at multiple angles, which is convenient for controlling the delivery amount of the first material and the rate of the chemical reaction. At the same time, the mutual cooperation between the first opening 112 and the multiple second openings 113 is more conducive to the formation and flow of turbulence, so as to improve the reaction effect and the production capacity of the reaction material. The ends of the first feed pipe 120 are opposite to each other. During the flow of the first material, it can form a counterattack on the outlets of the two first feed pipes 120 arranged relatively, effectively preventing the material from blocking the outlet of the first feed pipe 120.

[0072] See also Figure 3The circumferential side wall of the cylinder 110 has a plurality of second openings 113, and each first feed pipe 120 corresponds to a second opening 113. One end of the first feed pipe 120 is detachably connected to the cylinder 110 to facilitate the disassembly, maintenance and replacement of the first feed pipe 120. Two adjacent second openings 113 form a group, and accordingly, each group corresponds to two first feed pipes 120. There may be an angle (α) between the two first feed pipes 120 in the same group. This section does not make specific requirements on the range of the angle. It is only necessary to ensure that after the first feed pipe 120 and the cylinder 110 are installed, the outlets of the first feed pipes 120 corresponding to the spaced second openings 113 are opposite to each other.

[0073] For example, in a group spaced apart from each other, the outlets of the two first feed tubes 120 are opposite to each other and form a counter-attack at the opposite positions of the outlets to prevent the second material from being stuck between the two first feed tubes 120. At the same time, it can prevent the second material with small particle size from clogging the outlets of each first feed tube 120, thereby improving the smoothness of the first material entering the reaction chamber 111 through the first feed tube 120.

[0074] During the actual production of the fluidized bed reactor 100, the second opening 113 is preset on the barrel 110, and the first feed pipe 120 can be inserted into the second opening 113, and is detachably connected to the barrel 110 at the second opening 113. For example, flange connection, etc. In this way, the first feed pipe 120 is easy to inspect and replace.

[0075] in addition, Figure 3 An example is given in which 16 first feed pipes 120 are included. Every two first feed pipes 120 form a group, forming a total of 8 groups. It should be noted that the first feed pipes 120 are not limited to the above 16, and this section does not limit the specific number of the first feed pipes 120.

[0076] It should be noted that there is a spacing (W) between the outlets of the two opposing first feed pipes 120, and the spacing ranges from 30 to 500 mm. In this way, it can be ensured that the outlets of the two first feed pipes 120 are opposite to each other within the range, and the first materials flowing out of each outlet can interact with the outlet of the first feed pipe 120 on the opposite side to prevent the outlet of the first feed pipe 120 from being blocked.

[0077] Exemplarily, the distance (W) between the outlets of two opposite first feed pipes 120 may be 30 mm, 58 mm, 200 mm, 470 mm, 500 mm, etc. This section does not make specific requirements on the distance (W) between the outlets of two opposite first feed pipes 120, and any value within the above range may be used.

[0078] See also Figure 4In another possible embodiment, similarly, the first feed pipe 120 and the second opening 113 are arranged in one-to-one correspondence, and the first feed pipe 120 and the side wall of the barrel 110 are detachably connected to facilitate the disassembly, maintenance and replacement of the first feed pipe 120. Each first feed pipe 120 has two outlets, and there is an angle (β) between the two outlets. This embodiment does not make specific requirements for the angle (β), and it is only necessary to ensure that the outlets of adjacent first feed pipes 120 that are close to each other are opposite.

[0079] In this embodiment, the outlets of two adjacent first feed pipes 120 on the side close to each other are opposite to each other, and a hedge is formed therein, so as to prevent the second material from being stuck between the outlets of the two first feed pipes 120, and at the same time, to prevent the second material with small particle size from blocking the outlets of each first feed pipe 120, thereby improving the smoothness of the first material entering the reaction chamber 111 through the first feed pipe 120. At the same time, the space occupation of the fluidized bed reactor 100 can be reduced, and the production cost can be reduced.

[0080] Exemplarily, the first feed pipe 120 may correspond to a nozzle with two outlets at the end of the reaction chamber 111, and the nozzles of adjacent first feed pipes 120 have mutually adjacent outlets facing each other. The nozzle may be detachably connected to the first feed pipe 120 for maintenance and replacement.

[0081] Possibly, the fluidized bed reactor 100 further includes a distribution member 150 located in the reaction chamber 111, the distribution member 150 is located downstream of the first feed pipe 120, and in the vertical direction, the height of the distribution member 150 is lower than the second opening 113, and the distribution member 150 divides the reaction chamber 111 into a first chamber 1111 and a second chamber 1112; the distribution member 150 has first connecting holes 151 distributed in an array, and the first connecting holes 151 connect the first chamber 1111 and the second chamber 1112. In this way, the first material enters the first chamber 1111 from the bottom of the cylinder 110, and then enters the second chamber 1112 through the first connecting holes 151 distributed in an array on the distribution member 150, so that the first material can be evenly distributed in the reaction chamber 111, thereby improving the reaction effect of the first material and the second material, and further improving the production capacity of the reaction material.

[0082] It should be noted that the distribution member 150 can be a straight member or a conical member. The distribution member 150 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 150. The first connecting holes 151 on the distribution member 150 are distributed in an array. It can be understood that the first connecting holes 151 can use the center of the distribution member 150 as the array origin and are arranged in an equal spacing or non-uniform spacing. In this way, after the first material enters the second chamber 1112 from the first chamber 1111 through each of the first connecting holes 151, the first material is dispersed more evenly, thereby improving the reaction effect of the first material and the second material.

[0083] Possibly, a distributor (not shown in the figure) may be provided on the distribution member 150, and the distributor and the first connecting hole 151 on the distribution member 150 are provided in a one-to-one correspondence, and the distributor and the distribution member 150 are detachably connected to facilitate replacement of the distributor. The first connecting hole 151 may be a threaded hole, and the distributor and the distribution member 150 are threadedly connected through the first connecting hole 151. The distributor has a through hole, and the through hole connects the first chamber 1111 and the second chamber 1112, and the first material enters the second chamber 1112 from the first chamber 1111 through the upper through hole on the distributor.

[0084] In some embodiments, the fluidized bed reactor 100 further includes a connecting pipe 160, which is partially located in the first chamber 1111; the distribution member 150 has a second connecting hole 152, and the connecting pipe 160 is connected to the second chamber 1112 through the second connecting hole 152; the connecting pipe 160 is configured to pass the first material into the second chamber 1112. In this way, the first material is passed into the reaction chamber 111 through the connecting pipe 160, and the path for the first material 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.

[0085] Possibly, the fluidized bed reactor 100 further includes a discharge pipe 170, which is partially located in the first chamber 1111; the distribution member 150 has a third connecting hole 153, and the discharge pipe 170 is connected to the second chamber 1112 and the outside of the cylinder 110 through the third connecting hole 153. When the second material is deposited on the distribution member 150, it can be discharged from the third connecting hole 153 on the distribution member 150, and discharged to the outside of the cylinder 110 through the discharge pipe 170, thereby reducing the probability of the second material blocking the first connecting hole 151 on the distribution member 150, and ensuring the uniformity of the flow of the first material through the distribution member 150. At the same time, due to the provision of the third connecting hole 153, the second material deposited on the distribution member 150 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.

[0086] It should be noted that the number of the third connecting holes 153 can be multiple, and the multiple third connecting holes 153 are distributed at intervals along the circumference of the distribution member 150. Accordingly, the discharge pipe 170 and the corresponding end of the distribution member 150 have multiple inlets, and the inlets of the discharge pipe 170 and the third connecting holes 153 are arranged one by one. In this way, the second material deposited on the distribution member 150 enters the discharge pipe 170 through each third connecting hole 153 and is discharged from the outside of the cylinder 110. The provision of multiple third connecting holes 153 can also reduce the probability of the second material deposited on the distribution member 150 blocking the third connecting holes 153, so that the deposited second material can be discharged more smoothly.

[0087] Possible, combined Figure 1 , Figure 6-Figure 10 The thermal management device 140 includes a heat pipe 141 and a support 142 located in the reaction chamber 111. The heat pipe 141 is inserted through the support 142, and the support 142 is connected to the inner wall of the cylinder 110; the first heat transfer medium in the heat pipe 141 is thermally connected to the reaction chamber 111. In this way, the heat pipe 141 is relatively stably connected to the cylinder 110 through the support 142, and the first heat transfer medium flowing in the heat pipe 141 is thermally connected to the reaction chamber 111, so that the first heat transfer medium flows in the heat pipe 141, taking away part of the heat in the reaction chamber 111, 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.

[0088] It is understandable that the heat conducting pipe 141 is passed through the support member 142 to facilitate the connection between the heat conducting pipe 141 and the support member 142, and the heat conducting pipe 141 is supported by the support member 142 to stabilize the heat conducting pipe 141 in the reaction chamber 111. It is understandable that the number of the heat conducting pipes 141 can be multiple, and some of the multiple heat conducting pipes 141 can be connected in series into groups, and the groups are connected in parallel to share an inlet and an outlet of the first heat conducting medium. In this way, the inlet and outlet of the first heat conducting medium of the heat conducting pipe 141 on the cylinder 110 can be reduced, so that the overall structure of the fluidized bed reactor 100 is simpler.

[0089] Exemplarily, there may be 160 heat-conducting pipes 141 in the reaction chamber 111, with 10 heat-conducting pipes 141 in each group connected in series, forming a total of 16 groups of heat-conducting pipes 141 connected in series, and then the 16 groups of heat-conducting pipes 141 connected in series are connected in parallel in pairs, forming 8 groups of mutually independent parallel heat-conducting pipes 141. Each group of heat-conducting pipes 141 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.

[0090] In some embodiments, the support member 142 is a grid, and the support member 142 includes a first portion, a second portion, and a third portion stacked together, wherein the first portion, the second portion, and the third portion are all grid bar structures, and the grid bar structures of the first portion and the second portion have an angle between them to form a grid, and the grid bar structure of the third portion overlaps with the grid bar structure of the first portion along the stacking direction.

[0091] Optional, combined Figure 1 , Figure 6 and Figure 7The thermal management device 140 also includes a multi-stage heat-conducting sleeve 143, which is distributed in sequence along the axial direction of the cylinder 110, and each heat-conducting sleeve 143 is coiled on the outer wall of the cylinder 110; the second heat-conducting medium in the heat-conducting sleeve 143 is thermally conductive to the cylinder 110. In this way, the temperature in the reaction chamber 111 is further reduced by connecting the heat-conducting sleeve 143 and the outer wall of the cylinder 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, it can also protect the cylinder 110 to prevent the cylinder 110 from being damaged by excessive temperature. In addition, each heat-conducting sleeve 143 is independent of each other, so that the temperature of the cylinder 110 is easy to control.

[0092] It should be noted that the first heat-conducting medium and the second heat-conducting medium in the present application may be the same material or different materials. For example, the first heat-conducting medium and the second heat-conducting medium may be thermal grease.

[0093] In some embodiments, the ratio of the length of the heat conducting pipe 141 to the length of the cylinder 110 is 0.5-0.9.

[0094] Exemplarily, the ratio of the length of the heat pipe 141 to the length of the cylinder 110 may be 0.5, 0.62, 0.83, 0.9, etc. This embodiment does not make specific requirements for this, and only needs to ensure that the ratio of the length of the heat pipe 141 to the length of the cylinder 110 is within the above range.

[0095] In this way, it is ensured that when the first heat transfer medium flows in the heat transfer pipe 141 , it can quickly take away more reaction heat to stabilize the temperature in the reaction chamber 111 , while reducing the formation of reaction by-products and improving the purity and production capacity of the reaction material.

[0096] It is not difficult to understand that Fig. 9 As shown, adjacent heat pipes 141 are supported and welded by connecting pieces 144 , so that the heat pipes 141 remain stable in the reaction chamber 111 .

[0097] See also Fig. 9 The orthographic projection of each heat pipe 141 on the horizontal plane is displayed in a hexagonal structure array. Of course, each heat pipe 141 can also be arranged in a square, which is convenient for cleaning and purging of the heat pipe 141, improving the reaction efficiency of the fluidized bed reactor 100, and further improving the production capacity of the reaction material.

[0098] Possible, combined Figure 1 and Figure 6The thermal management device 140 further includes a first protective member 145 and a second protective member 146, which are stacked and wrap each heat-conducting sleeve 143. In this way, the heat-conducting sleeve 143 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.

[0099] Exemplarily, the first protective member 145 is a metal plate, such as an aluminum plate, etc., and the second protective member 146 is a heat-insulating plate, such as high-temperature resistant glass wool, etc. In this way, by providing the first protective member 145 and the second protective member 146, 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.

[0100] In some embodiments, see Figure 1 and Figure 7 The fluidized bed reactor 100 further includes a support base 180, which can be disposed on a side of the heat-conducting sleeve 143 away from the cylinder 110 and relatively fixedly connected to the heat-conducting sleeve 143, for example, by welding, etc. This can not only meet the heat dissipation requirements of the heat-conducting sleeve 143 for the cylinder 110, but also facilitate the support and transportation of the cylinder 110.

[0101] As a possible implementation, Figure 1 As shown, the fluidized bed reactor 100 also includes at least one separator 190, and at least one separator 190 is disposed at the fourth opening 115; the separator 190 is configured to separate the second material from the reaction material, and pass the separated second material into the reaction chamber 111. In this way, the reaction material is separated from the second material, thereby preventing the second material from being carried out by the reaction material, causing waste of the material. Possibly, the number of separators 190 can be one or more. The separator 190 can be disposed inside the cylinder 110, or it can be disposed outside the cylinder 110.

[0102] Possibly, at least one separator 190 is located in the reaction chamber 111 , and the separator 190 has a discharge leg 191 , and the discharge leg 191 is disposed through the support member 142 .

[0103] Specifically, Figure 1 As shown, when the separator 190 is disposed in the barrel 110, the inlet of the separator 190 is connected to the reaction chamber 111, and the outlet of the separator 190 is connected to the fourth opening 115, so that the reaction material enters the separator 190 through the inlet of the separator 190, and the reaction material is discharged through the outlet of the separator 190 and the fourth opening 115. The second material separated from the reaction material returns to the reaction chamber 111 through the discharge leg 191 of the separator 190, and then continues to participate in the reaction.

[0104] Of course, in some embodiments, the separator 190 and the discharge leg 191 are detachably connected, and an additional discharge leg 191 can be arranged on the cylinder 110 as a backup. When one of the discharge legs 191 is blocked, it can be replaced in time.

[0105] 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.

[0106] In some embodiments, reference Figure 1 , the diameter of the cylinder 110 ranges from 800 to 5000 mm, for example, the diameter of the cylinder 110 can be 800 mm, 1000 mm, 2200 mm, 3000, 5000 mm, etc. Of course, the diameter of the cylinder 110 can be reasonably selected within the above range according to production needs. In the prior art, if it is necessary to expand the processing capacity of the fluidized bed reactor 100, several small-diameter fluidized bed reactors 100 are required to be connected in parallel, which requires a large investment. In a specific embodiment, the diameter of the cylinder 110 of the fluidized bed reactor 100 is set to 2200 mm, which can significantly increase the annual processing capacity of the fluidized bed reactor 100, expand the production capacity of the reaction material to about 50,000 tons / year, and greatly reduce the investment.

[0107] Possibly, the angle (γ) between the second feeding pipe 130 and the barrel 110 is 30° to 45°. For example, the angle (γ) is 30°, 35°, 40°, 45°, etc. This part does not make specific requirements for this, and any angle value that meets the above range is acceptable.

[0108] The fluidized bed reactor 100 provided in the present application comprises: a barrel 110, a first feed pipe 120, a second feed pipe 130 and a thermal management device 140. The barrel 110 has a reaction chamber 111, and a first opening 112, a second opening 113, a third opening 114 and a fourth opening 115 connected to the reaction chamber 111; the first opening 112 is located at the bottom of the barrel 110, the second opening 113 and the third opening 114 are both located at the side of the barrel 110, and along the vertical direction, the third opening 114 is higher than the second opening 113 on the barrel 110, and the fourth opening 115 is located at the top of the barrel 110. The first feed pipe 120 is connected to the reaction chamber 111 through the first opening 112 and the second opening 113 respectively, and the first material is introduced into the reaction chamber 111. The second feed pipe 130 is connected to the reaction chamber 111 through the third opening 114, and the second material is introduced into the reaction chamber 111. The first material and the second material react in the reaction chamber 111 to generate a reaction substance, which is discharged through the fourth opening 115. Part of the thermal management device 140 is located in the barrel 110 to adjust the temperature in the reaction chamber 111. The fluidized bed reactor 100 can increase the production capacity of the reaction substance.

[0109] 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.

[0110] 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.

[0111] 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).

[0112] 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.

[0113] 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, characterized in that: include: A cylinder (110), the cylinder (110) comprising a reaction chamber (111), and a first opening (112), a second opening (113), a third opening (114), and a fourth opening (115) which are in communication with the reaction chamber (111); the first opening (112) is located at the bottom of the cylinder (110), the second opening (113) and the third opening (114) are both located at the side of the cylinder (110), and in the vertical direction, the height of the third opening (114) on the cylinder (110) is higher than that of the second opening (113), and the fourth opening (115) is located at the top of the cylinder (110); there are a plurality of second openings (113), and the plurality of second openings (113) are arranged at intervals around the circumference of the cylinder (110); a first feeding pipe (120), the first feeding pipe (120) being connected to the reaction chamber (111) through the first opening (112) and the second opening (113) respectively, and introducing a first material into the reaction chamber (111); the first feeding pipe (120) and the second opening (113) are in one-to-one correspondence, each of the first feeding pipes (120) is inserted into the second opening (113), and outlets of at least some of the first feeding pipes (120) are arranged opposite to each other; a second material supply pipe (130), the second material supply pipe (130) being connected to the reaction chamber (111) through the third opening (114) and supplying a second material to the reaction chamber (111); The first material and the second material react in the reaction chamber (111) to generate a reaction substance, and the reaction substance is discharged through the fourth opening (115); A heat management device (140), wherein a portion of the heat management device (140) is located inside the barrel (110) so that the temperature inside the reaction chamber (111) can be adjusted.

2. The fluidized bed reactor according to claim 1, characterized in that The invention also comprises a distribution member (150) located in the reaction chamber (111), wherein the distribution member (150) is located downstream of the first feed pipe (120), and along the vertical direction, the height of the distribution member (150) is lower than the second opening (113), and the distribution member (150) divides the reaction chamber (111) into a first chamber (1111) and a second chamber (1112); The distribution member (150) has first connecting holes (151) distributed in an array, and the first connecting holes (151) connect the first chamber (1111) and the second chamber (1112).

3. The fluidized bed reactor according to claim 2, characterized in that: It also includes a connecting pipe (160), wherein a portion of the connecting pipe (160) is located in the first chamber (1111); The distribution member (150) has a second communication hole (152), and the connecting pipe (160) is connected to the second chamber (1112) through the second communication hole (152); The connecting pipe (160) is configured to allow the first material to flow into the second chamber (1112).

4. The fluidized bed reactor according to claim 3, characterized in that It also includes a discharge pipe (170), wherein a portion of the discharge pipe (170) is located in the first chamber (1111); The distribution member (150) has a third communicating hole (153), and the discharge pipe (170) is connected to the second chamber (1112) and the outside of the cylinder (110) through the third communicating hole (153).

5. The fluidized bed reactor according to any one of claims 1 to 4, characterized in that: The heat management device (140) comprises a heat conducting pipe (141) and a support member (142) located in the reaction chamber (111); the heat conducting pipe (141) is passed through the support member (142); and the support member (142) is connected to the inner wall of the cylinder (110); The first heat conducting medium in the heat conducting pipe (141) is thermally connected to the reaction chamber (111).

6. The fluidized bed reactor according to claim 5, characterized in that The thermal management device (140) further comprises a plurality of sections of heat-conducting sleeves (143), wherein the plurality of sections of the heat-conducting sleeves (143) are sequentially spaced apart along the axial direction of the cylinder (110), and each of the heat-conducting sleeves (143) is coiled on the outer wall of the cylinder (110); The second heat-conducting medium in the heat-conducting sleeve (143) is thermally connected to the cylinder (110).

7. The fluidized bed reactor according to claim 6, characterized in that The thermal management device (140) further comprises a first protective member (145) and a second protective member (146); the first protective member (145) and the second protective member (146) are stacked and wrap around each of the thermally conductive sleeves (143).

8. The fluidized bed reactor according to claim 5, characterized in that It also includes at least one separator (190), wherein at least one separator (190) is disposed at the fourth opening (115); The separator (190) is configured to separate the second material from the reaction material, and pass the separated second material into the reaction chamber (111).

9. The fluidized bed reactor according to claim 8, characterized in that At least one of the separators (190) is located in the reaction chamber (111), and the separator (190) has a discharge leg (191), and the discharge leg (191) is passed through the support member (142).

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