A fluorobenzene diazotized solid automatic feeding device

Abstract

The present invention provides a fluorobenzene diazotization solid automatic feeding device, which belongs to the technical field of diazo chemical production equipment. It includes a feeding component and a reactor, the feeding component is installed on the top of the reactor, and the output port at the bottom of the feeding component is connected to the inside of the reactor, and the feeding component includes a support tube, the support tube is fixedly connected to the reactor, and the bottom seal of the support tube passes through the top of the reactor. The present invention is provided with a crushing mechanism and a feeding component to break up the blocky sodium nitrite in the crushing tube and transport it to the cyclone tube. During the transportation process, multiple heating components are provided to prevent the sodium nitrite from absorbing water and agglomerating, and at the same time, excess water is evaporated. At the same time, the change of air pressure in the cyclone tube is used to transport the sodium nitrite in the cyclone tube to a collecting tube for collection and use, so as to solve the problem that the existing sodium nitrite feeding efficiency is low and there are certain safety hazards.

Description

Technical Field

[0001] The invention relates to the technical field of diazo chemical production equipment, in particular to an automatic feeding device for fluorobenzene diazotized solids. Background Art

[0002] Industrial sodium nitrite (abbreviated as sodium nitrite) is one of the main raw materials in fluorination production. It contains a certain amount of water, is easy to absorb moisture and form lumps, and has poor fluidity. It is not only easy to clog discharge pipes and valves, but also causes nitrogen oxides to escape, affecting the operating environment.

[0003] Therefore, sodium nitrite is a solid raw material that easily absorbs moisture and agglomerates, which leads to easy blockage during the feeding process. It is necessary to feed slowly manually, which reduces the feeding efficiency. At the same time, when performing the diazotization reaction, sodium nitrite needs to be poured in at a uniform speed. Manual feeding is difficult to meet the usage needs, and sodium nitrite has certain toxicity. There are safety hazards in the manual feeding method. The demand for products in the industry is getting higher and higher. Improving the automation level of the process and reducing manpower and material resources in the product production process are problems that need to be solved urgently. Therefore, the present application provides a fluorobenzene diazotization solid automatic feeding device to meet the demand. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic feeding device for fluorobenzene diazotized solid. By setting a crushing mechanism and a feeding component, the blocky sodium nitrite in the crushing cylinder is broken up and transported to the cyclone cylinder. During the transportation process, multiple heating components are set to prevent the sodium nitrite from absorbing water and agglomerating, and at the same time evaporate the excess water. At the same time, the change of air pressure in the cyclone cylinder is utilized to transport the sodium nitrite in the cyclone cylinder to a collecting cylinder for collection and use, so as to solve the problem of low efficiency and certain safety hazards of the existing sodium nitrite feeding.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An automatic feeding device for fluorobenzene diazotized solids, comprising a feeding assembly and a reactor, wherein the feeding assembly is mounted on the top of the reactor, and an output port at the bottom of the feeding assembly is connected to the interior of the reactor; the feeding assembly comprises a support tube, which is fixedly connected to the reactor, and the bottom of the support tube is sealed and passes through the top of the reactor, and a feeding assembly is provided inside the support tube, which can transport powdered materials;

[0007] A crushing mechanism is provided on the top of the support cylinder; the crushing mechanism can crush the solid nodule block material; the crushing mechanism includes an executive component, a material holding barrel is installed at the bottom of the executive component, a bottom barrel is fixedly installed at the bottom of the material holding barrel, a discharge funnel is fixedly installed on the inner wall of the bottom of the bottom barrel, and the discharge funnel is provided in six groups and arranged in a circular array, the bottoms of the six groups of discharge funnels all pass through the bottom of the bottom barrel, and the bottom of the bottom barrel is fixedly connected to the top of the support cylinder.

[0008] Optionally, the crushing mechanism includes an executive component, a material holding barrel is installed at the bottom of the executive component, a bottom barrel is fixedly installed at the bottom of the material holding barrel, a discharge funnel is fixedly installed on the inner wall of the bottom of the bottom barrel, and the discharge funnels are provided in six groups and arranged in a circular array. The bottoms of the six groups of discharge funnels all pass through the bottom of the bottom barrel, and the bottom of the bottom barrel is fixedly connected to the top of the support barrel.

[0009] Optionally, a funnel-shaped material tray 2 is fixedly mounted on the top of the material barrel, a conduit hole 2 is opened on the peripheral wall of the funnel-shaped material tray 2, a plurality of conduit holes 2 are provided and are evenly distributed on the peripheral wall of the funnel-shaped material tray 2, and a chassis is fixedly mounted on the inner wall of the bottom of the material barrel.

[0010] Optionally, the execution component includes a crushing cylinder, a feeding channel is provided on the top side wall of the crushing cylinder, a funnel-shaped material tray is fixedly installed on the bottom of the crushing cylinder, a conduit hole 1 is provided on the surrounding wall of the funnel-shaped material tray, and the conduit hole 1 is provided in multiple groups and corresponds one-to-one with the conduit hole 2.

[0011] Optionally, one side wall of the funnel-shaped tray is fixedly connected to the top of the second funnel-shaped tray by bolts, a catheter is fixedly installed on the inner wall of the first conduit hole, and the outer wall of the catheter is fixedly connected to the corresponding inner wall of the second conduit hole.

[0012] Optionally, a motor is fixedly installed on the top of the crushing barrel, a crushing rod is rotatably connected to the inner wall of the top of the crushing barrel, and the output end of the motor is fixedly connected to the end wall of the crushing rod, the crushing blades at the bottom of the crushing rod are in active contact with the inner wall of the funnel-shaped material tray, and a plurality of groups of regular triangular grooves are provided on the crushing blades at the bottom of the crushing rod.

[0013] Optionally, multiple groups of feed pipes are fixedly installed on the outer peripheral wall of the top of the chassis, and the number of feed pipes is the same as the number of conduit holes 2. The top of the feed pipe is fixedly connected to the corresponding conduit, the bottom of the feed pipe passes through the chassis, and the top of the discharge funnel is connected to the bottom pipe openings of the corresponding four groups of feed pipes.

[0014] Optionally, a heating plate is fixedly installed on the inner wall of the top of the second funnel-shaped material tray, an inner spiral heating wire is fixedly installed at the center of the top of the chassis, and an outer spiral heating wire is fixedly installed on the outer side of the inner wall of the bottom of the material barrel, and neither the outer spiral heating wire nor the inner spiral heating wire is in contact with the feed pipe.

[0015] Optionally, the feeding assembly includes a cyclone cylinder, the outer wall of the cyclone cylinder is fixedly connected to the inner wall of the support cylinder, an exhaust pipe is fixedly installed on the top of the cyclone cylinder, and the exhaust pipe passes through one side of the support cylinder, a collecting cylinder is fixedly installed on the bottom of the collecting cylinder, a metering solenoid valve is fixedly installed at the bottom barrel mouth of the collecting cylinder, and the valve mouth of the metering solenoid valve is connected to the inside of the reactor, an air block is fixedly installed on the inner wall of the top of the collecting cylinder, and the air block is located at the center of the bottom of the cyclone cylinder.

[0016] Optionally, a material collection cover is fixedly installed at the bottom of the bottom cylinder, and the bottom cylinder mouth of the discharge funnel is located inside the material collection cover. A material transfer pipe is fixedly installed at the bottom of the material collection cover, and the top pipe mouth of the material transfer pipe is connected to the inside of the material collection cover. The bottom pipe mouth of the material transfer pipe is fixed through one side of the cyclone cylinder and is connected to the inside of the cyclone cylinder.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, a crushing mechanism is set up, and the funnel-shaped material plate at the bottom of the crushing barrel and the crushing rod are used together to break up the lumpy sodium nitrite in the crushing barrel. At the same time, under the transportation action of the conduit and the feed pipe, the sodium nitrite in the crushing barrel is transported to the discharge funnel. At the same time, the heating plate, the outer spiral heating wire and the inner spiral heating wire can ensure that the sodium nitrite will not absorb water and agglomerate during transportation, and at the same time evaporate the water in the sodium nitrite to make it powdery, avoiding clogging in the conduit and the feed pipe. At the same time, since the end of the feed pipe is angled with the center line of the discharge funnel, the powdered sodium nitrite will be obliquely injected into the discharge funnel, and the negative pressure generated by the air pump can generate centrifugal force in the discharge funnel, so that the powdered sodium nitrite in the discharge funnel can spiral downward along the inner wall of the discharge funnel and fall into the aggregate cover, avoiding clogging of the powdered sodium nitrite in the discharge funnel.

[0019] By setting up the feeding assembly, the negative pressure generated by the air pump in the cyclone can act on the transfer pipe, so that the powdered sodium nitrite falling on the collection cover is sucked into the cyclone through the transfer pipe. At this time, since the cyclone is set to be wide at the top and narrow at the bottom, that is, the space in the cyclone is in a contracted state from top to bottom, thereby forming a pressure difference in the cyclone, that is, the pressure in the cyclone increases from top to bottom. Under the action of negative pressure, the airflow in the cyclone performs a spiral motion and generates centrifugal force, that is, the vast majority of the rotating airflow flows spirally downward from the cyclone along the wall of the device toward the collection barrel. In addition, the powdered sodium nitrite entering the cyclone is separated by centrifugal force and sprinkled on the inner wall of the cyclone due to its large specific gravity. Once the powdered sodium nitrite comes into contact with the cyclone, it will be discharged. When the powdered sodium nitrite moves to the high-pressure area, it will get rid of the spiral motion and fall into the collecting barrel along the inner wall of the cyclone under the action of gravity. At the same time, the outer vortex airflow that rotates downward continuously flows into the center of the cyclone during the descent process, forming a centripetal radial airflow. When it contacts the wind block, this part of the airflow constitutes an inner vortex that rotates upward, and the rotation direction of the inner and outer vortexes is the same. Finally, the inner vortex gas is extracted by the exhaust pipe. When sodium nitrite needs to be added to the reactor for reaction, the powdered sodium nitrite can be added in a quantitative manner by opening the metering solenoid valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a fluorobenzene diazotization solid automatic feeding device;

[0022] Figure 2 It is a structural diagram of the feeding component;

[0023] Figure 3 This is a schematic diagram of the installation of the feeding assembly in the support cylinder;

[0024] Figure 4 This is a disassembled diagram of the feeding component;

[0025] Figure 5 is a cross-sectional view of the feeding assembly;

[0026] Figure 6 It is a schematic diagram of the connection structure between the aggregate cover and the cyclone drum;

[0027] Figure 7 This is a front view of the crushing mechanism;

[0028] Figure 8 This is a bottom-up exploded view of the crushing mechanism;

[0029] Figure 9 It is a structural diagram of the execution component;

[0030] Figure 10 Schematic diagram of the installation of the catheter and the catheter hole;

[0031] Figure 11 Schematic diagram of the structure of the crushing rod;

[0032] Figure 12 This is a schematic diagram of the installation of the bottom barrel and the material barrel;

[0033] Figure 13 Schematic diagram of the internal structure of the barrel;

[0034] Figure 14 This is a schematic diagram of the installation of the chassis and the barrel;

[0035] Figure 15 This is a disassembled diagram of the internal structure of the barrel;

[0036] Figure 16 This is a planar schematic diagram of the crushing mechanism.

[0037] Reference numerals:

[0038] 100. Feeding assembly; 110. Support cylinder; 120. Crushing mechanism; 130. Executive component; 131. Crushing cylinder; 132. Feeding chute; 133. Funnel-shaped tray one; 134. Conduit hole one; 135. Conduit; 136. Crushing rod; 137. Motor; 140. Material holding cylinder; 141. Funnel-shaped tray two; 142. Conduit hole two; 143. Heating plate; 144. Bottom plate; 145. Feed pipe; 146. Outer spiral heating wire; 147. Inner spiral heating wire; 150. Bottom cylinder; 151. Discharging funnel; 160. Feeding assembly; 161. Cyclone cylinder; 162. Exhaust pipe; 163. Collecting cylinder; 164. Air block; 165. Metering solenoid valve; 166. Collecting cover; 167. Transfer pipe; 200. Reactor.

[0039] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0040] The following is a detailed description of a fluorobenzene diazotized solid automatic feeding device and a detection method thereof provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. At the same time, it is noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0041] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0042] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0043] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0044] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0045] like Figures 1 to 16As shown, the embodiment of the present invention provides an automatic feeding device for fluorobenzene diazotization solid, including a feeding component 100 and a reactor 200, the feeding component 100 is installed on the top of the reactor 200, and the output port at the bottom of the feeding component 100 is connected to the inside of the reactor 200, the feeding component 100 includes a support cylinder 110, the support cylinder 110 is fixedly connected to the reactor 200, the reactor 200 is supported by the support cylinder 110, and the bottom seal of the support cylinder 110 passes through the top of the reactor 200, the material in the feeding component 100 can fall into the reactor 200 to participate in the reaction, the support cylinder 110 is provided with a feeding component 160, and the top of the support cylinder 110 is provided with a There is a crushing mechanism 120; the crushing mechanism 120 can crush solid nodular block materials, and by utilizing the combined action of the funnel-shaped material tray 133 at the bottom of the crushing cylinder 131 and the crushing rod 136, the blocky sodium nitrite in the crushing cylinder 131 can be broken up; the feeding component 160 can transport powdered materials, and by utilizing the transportation function of the conduit 135 and the feed pipe 145, the sodium nitrite in the crushing cylinder 131 can be transported to the discharge funnel 151. At the same time, the heating plate 143, the outer spiral heating wire 146 and the inner spiral heating wire 147 can ensure that the sodium nitrite will not absorb water and agglomerate during transportation, and at the same time evaporate the moisture in the sodium nitrite to make it powdery.

[0046] like Figure 8 and 12 to Figure 16As shown, the crushing mechanism 120 includes an executive component 130, a material holding barrel 140 is installed at the bottom of the executive component 130, a bottom barrel 150 is fixedly installed at the bottom of the material holding barrel 140, and the bottom barrel 150 can provide support for the material holding barrel 140, and a discharge funnel 151 is fixedly installed on the inner wall of the bottom of the bottom barrel 150, and the bottom barrel 150 supports multiple groups of discharge funnels 151. There are six groups of discharge funnels 151, and they are arranged in a circular array. The bottoms of the six groups of discharge funnels 151 all pass through the bottom of the bottom barrel 150, and the bottom of the bottom barrel 150 is fixedly connected to the top of the support barrel 110. The support barrel 110 provides support for the bottom barrel 150, and a funnel-shaped material tray 2 141 is fixedly installed on the top of the material holding barrel 140. The material holding barrel 140 provides support for the funnel-shaped material tray 2 141. A second conduit hole 142 is provided on the peripheral wall of the second material tray 141. There are multiple groups of conduit holes 142, which are evenly distributed on the peripheral wall of the second funnel-shaped material tray 141. A chassis 144 is fixedly installed on the inner wall of the bottom of the material cylinder 140. The material cylinder 140 provides support for the chassis 144. The execution component 130 includes a crushing cylinder 131. A feeding channel 132 is provided on the top side wall of the crushing cylinder 131. Block-shaped sodium nitrite can be added to the crushing cylinder 131 through the feeding channel 132. A funnel-shaped material tray 133 is fixedly installed on the bottom of the crushing cylinder 131. A conduit hole 134 is provided on the peripheral wall of the funnel-shaped material tray 133. There are multiple groups of conduit holes 134, which correspond one to one with the second conduit holes 142. The aperture of the conduit hole 134 is small, and only sodium nitrite that meets the diameter requirements is allowed to pass through. Sodium nitrate passes through, and the side wall of the funnel-shaped material tray 133 is fixedly connected to the top of the funnel-shaped material tray 2 141 by bolts. The funnel-shaped material tray 133 provides support for the funnel-shaped material tray 2 141. The inner wall of the conduit hole 134 is fixedly installed with a conduit 135. The outer wall of the conduit 135 is fixedly connected to the inner wall of the corresponding conduit hole 2 142. The conduit 135 plays a transportation role and can transport the powdered sodium nitrite in the funnel-shaped material tray 133 to the feeding pipe 145. A plurality of groups of feeding pipes 145 are fixedly installed on the outer peripheral wall of the top of the chassis 144, and the number of feeding pipes 145 is the same as the number of conduit holes 2 142. The top of the feeding pipe 145 is fixedly connected to the corresponding conduit 135, and the top pipe mouth of the feeding pipe 145 is connected to the conduit 135. The bottom of the feeding pipe 145 passes through the chassis 144, the bottom nozzle of the feeding pipe 145 is set at an angle to the bottom plate 144, so that the powdered sodium nitrite entering the discharge funnel 151 can contact the inner wall of the discharge funnel 151, and the top of the discharge funnel 151 is connected with the corresponding four groups of bottom nozzles of the feeding pipe 145. In the present invention, the blocky sodium nitrite in the crushing cylinder 131 is crushed by the crushing rod 136 and enters the feeding pipe 145 through the conduit 135. When the powdered sodium nitrite in the feeding pipe 145 enters the discharge funnel 151 under the action of negative pressure, since the end nozzle of the feeding pipe 145 is set at an angle to the center line of the discharge funnel 151, the powdered sodium nitrite will be obliquely injected into the discharge funnel 151. At the same time, the negative pressure generated by the air pump can generate centrifugal force in the discharge funnel 151.The powdered sodium nitrite in the discharge funnel 151 can move downward along the inner wall of the discharge funnel 151 in a spiral and fall into the collecting cover 166, thereby preventing the powdered sodium nitrite from clogging the discharge funnel 151.

[0047] like Figures 9 to 11 As shown, a motor 137 is fixedly installed on the top of the pulverizing cylinder 131, and the pulverizing cylinder 131 provides support for the motor 137. A pulverizing rod 136 is rotatably connected to the inner wall of the top of the pulverizing cylinder 131, and the output end of the motor 137 is fixedly connected to the end wall of the pulverizing rod 136. The pulverizing blades at the bottom of the pulverizing rod 136 are in active contact with the inner wall of the funnel-shaped material tray 133. The pulverizing blades at the bottom of the pulverizing rod 136 can pulverize the block sodium nitrite on the funnel-shaped material tray 133 and beat it into powder. A plurality of groups of regular triangular grooves are provided on the pulverizing blades at the bottom of the pulverizing rod 136. When the pulverizing blades at the bottom of the pulverizing rod 136 come into contact with the block sodium nitrite, the block sodium nitrite is broken by the pulverizing blades and can pass through the triangular grooves on the pulverizing blades, thereby passing through the conduit hole 134 on the funnel-shaped material tray 133 and entering the conduit 135.

[0048] In this embodiment, an external air pump is connected to the exhaust pipe 162 to generate a negative pressure in the cyclone cylinder 161, and a negative pressure can be generated synchronously in the crushing mechanism 120 through the connecting effect of the material transfer pipe 167. At this time, sodium nitrite is used as a diazotizing agent, and agglomerated sodium nitrite is added to the crushing cylinder 131 through the feeding channel 132. The driving motor 137 drives the crushing rod 136 to rotate, so that the crushing blades at the bottom of the crushing rod 136 can break up the agglomerated sodium nitrite. At the same time, the triangular grooves on the crushing blades have a screening effect, which can only allow powdered sodium nitrite to pass through. At the same time, with the negative pressure generated by the air pump, the powdered sodium nitrite can enter the feed pipe 145 through the conduit 135, and enter the discharge funnel 151 through the feed pipe 145.

[0049] like Figures 13 to 15 As shown, a heating plate 143 is fixedly installed on the top inner wall of the funnel-shaped material tray 141, and the funnel-shaped material tray 141 supports the heating plate 143. At the same time, the heating plate 143 can heat the material in the conduit 135. An inner spiral heating wire 147 is fixedly installed at the top center of the bottom plate 144, and the bottom plate 144 provides support for the inner spiral heating wire 147. An outer spiral heating wire 146 is fixedly installed on the outer side of the inner wall of the bottom of the material holding barrel 140, and the material holding barrel 140 provides support for the outer spiral heating wire 146. Both the outer spiral heating wire 146 and the inner spiral heating wire 147 can heat the material in the feed pipe 145, and neither the outer spiral heating wire 146 nor the inner spiral heating wire 147 contacts the feed pipe 145. This arrangement can prevent the outer spiral heating wire 146 and the inner spiral heating wire 147 from causing thermal damage to the surface of the feed pipe 145.

[0050] In this embodiment, the heating disk 143 can heat the conduit 135, and the outer spiral heating wire 146 and the inner spiral heating wire 147 can heat the feed pipe 145, thereby ensuring that the powdered sodium nitrite is heated in the conduit 135 and the feed pipe 145 to prevent it from agglomerating due to water absorption, and at the same time evaporate the moisture inside the powdered sodium nitrite so that it always remains in powder form.

[0051] like Figures 2 to 7 As shown, the feeding assembly 160 includes a cyclone 161, as shown in the appendix of the specification. Figure 6As shown, the cyclone 161 is designed to be a trumpet shape that is wide at the top and narrow at the bottom, which can make the space inside the cyclone 161 shrink from top to bottom, thereby forming a pressure difference in the cyclone 161, that is, the pressure in the cyclone 161 increases from top to bottom. Under the action of negative pressure, the airflow in the cyclone 161 performs a spiral motion and generates centrifugal force, that is, the vast majority of the rotating airflow flows spirally downward from the cyclone 161 along the wall toward the collecting barrel 163. The outer wall of the cyclone 161 is fixedly connected to the inner wall of the support barrel 110, and the support barrel 110 provides support for the cyclone 161. An exhaust pipe 162 is fixedly installed on the top of the cyclone 161, and the exhaust pipe 162 passes through one side of the support barrel 110, and the support barrel 110 supports the exhaust pipe 162. A collecting barrel 163 is fixedly installed at the bottom of the cyclone barrel 161, and the collecting barrel 163 can collect the powdered sodium nitrite falling from the cyclone barrel 161. A metering solenoid valve 165 is fixedly installed at the bottom mouth of the collecting barrel 163. When powdered sodium nitrite is needed to participate in the reaction, the external air pump is turned off and the metering solenoid valve 165 is opened to quantitatively add the powdered sodium nitrite. The valve mouth of the metering solenoid valve 165 is connected to the interior of the reactor 200. A wind block 164 is fixedly installed on the inner wall of the top of the collecting barrel 163, and the wind block 164 is located at the bottom center of the cyclone barrel 161. The wind block 164 can block the movement of the cyclone inside and outside the cyclone barrel 161, and an inner cyclone can be formed at the wind block 164, and the rotating and descending outer cyclone airflow is generated. During the descent process, it continuously flows into the central part of the cyclone cylinder 161, forming a centripetal radial airflow. When it contacts the wind block 164, this part of the airflow constitutes an internal cyclone that rotates upward, and the rotation directions of the internal and external cyclones are the same. Finally, the internal cyclone gas is extracted by the exhaust pipe 162. A collection cover 166 is fixedly installed at the bottom of the bottom cylinder 150. The bottom cylinder 150 plays a guiding role for the collection cover 166. At the same time, the collection cover 166 is in sealing contact with the bottom of the bottom cylinder 150, and the bottom barrel mouth of the discharge funnel 151 is located in the collection cover 166. Under the action of the negative pressure in the cyclone cylinder 161, all the materials in the discharge funnel 151 can fall into the collection cover 166 for collection. A transfer pipe is fixedly installed at the bottom of the collection cover 166. 167. The collecting cover 166 provides support for the material transfer tube 167. The top pipe opening of the material transfer tube 167 is connected with the interior of the collecting cover 166. The material in the collecting cover 166 can enter the material transfer tube 167. The bottom pipe opening of the material transfer tube 167 is fixed and passes through one side of the cyclone tube 161. Under the action of negative pressure, the material in the collecting cover 166 can fall into the cyclone tube 161 through the guiding effect of the material transfer tube 167 and is connected with the interior of the cyclone tube 161. The material transfer tube 167 located in the cyclone tube 161 is tangent to the outer wall of the cyclone tube 161, so that when the material enters the cyclone tube 161 through the material transfer tube 167, its motion state can be changed from linear motion in the material transfer tube 167 to circular motion in the cyclone tube 161.

[0052] In this embodiment, the negative pressure generated by the air pump in the cyclone barrel 161 can act on the transfer tube 167, thereby sucking the powdered sodium nitrite falling into the collection cover 166 into the cyclone barrel 161 through the transfer tube 167. Since the powdered sodium nitrite entering the cyclone barrel 161 has a large specific gravity, the powdered sodium nitrite is separated by centrifugal force and sprinkled on the inner wall of the cyclone barrel 161. Once the powdered sodium nitrite contacts the inner wall of the cyclone barrel 161, it loses its inertial force and falls along the wall by the momentum of the downward axial velocity near the inner wall of the cyclone barrel 161. When the powdered sodium nitrite moves to the high-pressure area (the bottom area of ​​the cyclone barrel 161), the powdered sodium nitrite will get rid of the spiral motion and, under the action of gravity, fall into the collection barrel 163 along the inner wall of the cyclone barrel 161. When sodium nitrite needs to be added to the reactor 200 for reaction, the powdered sodium nitrite can be added in a quantitative manner by opening the metering solenoid valve 165.

[0053] The working principle of the technical solution provided by the present invention is as follows:

[0054] An external air pump is connected to the exhaust pipe 162 to generate negative pressure in the cyclone cylinder 161, and the connecting effect of the material transfer pipe 167 can synchronously generate negative pressure in the crushing mechanism 120. At this time, sodium nitrite is used as a diazotizing agent, and agglomerated sodium nitrite is added to the crushing cylinder 131 through the feeding channel 132. The driving motor 137 drives the crushing rod 136 to rotate, so that the crushing blades at the bottom of the crushing rod 136 can break up the agglomerated sodium nitrite. At the same time, the triangular grooves on the crushing blades have a screening effect, which can only allow powdered sodium nitrite to pass through. At the same time, with the negative pressure generated by the air pump, the powdered sodium nitrite can enter the feed pipe 145 through the conduit 135, and enter the discharge funnel 151 through the feed pipe 145. During this process, the heating plate 143 can heat the conduit 135.

[0055] At the same time, the outer spiral heating wire 146 and the inner spiral heating wire 147 can heat the feed pipe 145, thereby ensuring that the powdered sodium nitrite is heated in the conduit 135 and the feed pipe 145, preventing it from agglomerating due to water absorption, and at the same time evaporating the moisture inside the powdered sodium nitrite so that it always remains in powder form. When the powdered sodium nitrite in the feed pipe 145 enters the discharge funnel 151 under the action of negative pressure, since the end nozzle of the feed pipe 145 is angled with the center line of the discharge funnel 151, the powdered sodium nitrite will be obliquely injected into the discharge funnel 151. At the same time, the negative pressure generated by the air pump can generate centrifugal force in the discharge funnel 151, so that the powdered sodium nitrite in the discharge funnel 151 can spiral downward along the inner wall of the discharge funnel 151 and fall into the collection cover 166, thereby preventing the powdered sodium nitrite from causing blockage in the discharge funnel 151.

[0056] The negative pressure generated by the air pump in the cyclone barrel 161 can act on the transfer pipe 167, so that the powdered sodium nitrite falling into the collection cover 166 is sucked into the cyclone barrel 161 through the transfer pipe 167. At this time, since the cyclone barrel 161 is set to be wide at the top and narrow at the bottom, that is, the space in the cyclone barrel 161 is in a contracted state from top to bottom, thereby forming a pressure difference in the cyclone barrel 161, that is, the pressure in the cyclone barrel 161 increases from top to bottom. Under the action of the negative pressure, the air flow in the cyclone barrel 161 performs a spiral motion and generates centrifugal force, that is, the vast majority of the rotating air flow flows spirally downward from the cyclone barrel 161 along the wall of the device toward the collection barrel 163. In addition, due to the large specific gravity of the powdered sodium nitrite entering the cyclone barrel 161, the powdered sodium nitrite is separated by the centrifugal force and sprinkled on the inner wall of the cyclone barrel 161. Once the powdered sodium nitrite is mixed with the cyclone barrel 1 61, it loses its inertial force and falls along the wall by the momentum of the downward axial velocity near the inner wall of the cyclone tube 161. When the powdered sodium nitrite moves to the high-pressure area (the bottom area of ​​the cyclone tube 161), the powdered sodium nitrite will get rid of the spiral motion and fall into the collecting barrel 163 along the inner wall of the cyclone tube 161 under the action of gravity. At the same time, the rotating and descending external vortex airflow continuously flows into the central part of the cyclone tube 161 during the descent process, forming a centripetal radial airflow. When it contacts the wind-blocking block 164, this part of the airflow constitutes a rotating upward internal vortex, and the rotation directions of the internal and external vortices are the same. Finally, the internal vortex gas is extracted by the exhaust pipe 162. When sodium nitrite needs to be added to the reactor 200 for reaction, the powdered sodium nitrite can be added in a quantitative manner by opening the metering solenoid valve 165.

[0057] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fluorobenzene diazotized solid automatic feeding device, characterized in that, It includes a feeding component and a reactor, wherein the feeding component is installed on the top of the reactor, and the output port at the bottom of the feeding component is connected to the interior of the reactor; The feeding assembly includes a support tube, which is fixedly connected to the reactor, and the bottom of the support tube is sealed and passes through the top of the reactor. A feeding assembly is provided inside the support tube, and the feeding assembly includes a cyclone tube, the outer wall of the cyclone tube is fixedly connected to the inner wall of the support tube, and an exhaust pipe is fixedly installed on the top of the cyclone tube, and the exhaust pipe passes through one side of the support tube; A crushing mechanism is provided on the top of the support cylinder, and the crushing mechanism includes an executive component, a material holding cylinder is installed at the bottom of the executive component, a bottom cylinder is fixedly installed at the bottom of the material holding cylinder, and a discharge funnel is fixedly installed on the inner wall of the bottom of the bottom cylinder. The discharge funnels are provided in six groups and arranged in a circular array. The bottoms of the six groups of discharge funnels all pass through the bottom of the bottom cylinder, and the bottom of the bottom cylinder is fixedly connected to the top of the support cylinder; A second funnel-shaped tray is fixedly mounted on the top of the material holding barrel, and a second conduit hole is opened on the peripheral wall of the second funnel-shaped tray. A chassis is fixedly mounted on the inner wall of the bottom of the material holding barrel, and a plurality of feed pipes are fixedly mounted on the outer peripheral wall of the top of the chassis, and the number of the feed pipes is the same as the number of the second conduit holes. The feeding assembly can transport powdered materials; The execution component includes a crushing cylinder, a feeding channel is provided on the top side wall of the crushing cylinder, a funnel-shaped material tray 1 is fixedly installed at the bottom of the crushing cylinder, a conduit hole 1 is provided on a peripheral wall of the funnel-shaped material tray, a plurality of conduit holes 1 are provided, and they correspond one to one with conduit holes 2, a motor is fixedly installed on the top of the crushing cylinder, a crushing rod is rotatably connected to the inner wall of the top of the crushing cylinder, and the output end of the motor is fixedly connected to the end wall of the crushing rod, and the crushing mechanism can crush solid nodule block materials; The crushing blades at the bottom of the crushing rod are in active contact with an inner wall of the funnel-shaped material tray, and the crushing blades at the bottom of the crushing rod are provided with a plurality of groups of regularly shaped triangular grooves; A heating plate is fixedly mounted on the inner wall of the top of the second funnel-shaped tray, an inner spiral heating wire is fixedly mounted at the center of the top of the bottom tray, and an outer spiral heating wire is fixedly mounted on the outer side of the inner wall of the bottom of the material holding barrel, and neither the outer spiral heating wire nor the inner spiral heating wire is in contact with the material delivery pipe; A material collection cover is fixedly installed at the bottom of the bottom cylinder, and the bottom cylinder opening of the discharge funnel is located inside the material collection cover. A material transfer pipe is fixedly installed at the bottom of the material collection cover, and the top pipe opening of the material transfer pipe is connected to the inside of the material collection cover. The bottom pipe opening of the material transfer pipe is fixedly passed through one side of the cyclone cylinder and is connected to the inside of the cyclone cylinder.

2. Fluorobenzene diazotized solid automatic feeding device according to claim 1, characterized in that, The conduit holes are provided in multiple groups and are evenly distributed on the two peripheral walls of the funnel-shaped tray.

3. Fluorobenzene diazotized solid automatic feeding device according to claim 2, characterized in that, One side wall of the funnel-shaped tray is fixedly connected to the top of the second funnel-shaped tray by bolts, a catheter is fixedly installed on the inner wall of the first conduit hole, and the outer wall of the conduit is fixedly connected to the corresponding inner wall of the second conduit hole.

4. The fluorobenzene diazotized solid automatic feeding device according to claim 3, characterized in that, The top of the feeding pipe is fixedly connected to the corresponding conduit, the bottom of the feeding pipe passes through the chassis, and the top of the discharge funnel is communicated with the bottom pipe openings of the corresponding four groups of feeding pipes.

5. The fluorobenzene diazotized solid automatic feeding device according to claim 4, characterized in that, A collecting barrel is fixedly installed at the bottom of the cyclone barrel, a metering solenoid valve is fixedly installed at the bottom barrel mouth of the collecting barrel, and the valve mouth of the metering solenoid valve is connected to the inside of the reactor, and an air blocking block is fixedly installed on the inner wall of the top of the collecting barrel, and the air blocking block is located at the center of the bottom of the cyclone barrel.

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