Centrifugal dewatering apparatus for chemical plants

Abstract

The present invention belongs to the field of centrifugal separation equipment, and proposes a centrifugal dehydration equipment for chemical workshops, including a body, a rotating shaft, a bearing group, a variable frequency motor and a rotating drum, wherein the body includes two outer half shells, a water outlet pipe and a solid discharge pipe, and the outer peripheral surface of the butt end of the outer half shell is provided with a sealing ring plate and a feed pipe, the number of the rotating drum is two and one is provided in a different outer half shell, the rotating drum includes a rotating support ring plate, a trumpet-shaped drum surface, a bowl-shaped drum surface, a concave arc surface, a center opening and a transmission bowl, the middle of the transmission bowl is connected to the rotating shaft, a plurality of centrifugal openings are provided at the transition position between the trumpet-shaped drum surface and the bowl-shaped drum surface, the inner wall of the outer half shell is provided with a discharge connection component corresponding to the rotation range of the centrifugal opening, and the discharge connection component corresponds to the solid discharge pipe. The present invention has a reasonable design, a reasonable design, adopts a double-drum design, and can remove solids while centrifuging, which is conducive to improving dehydration efficiency and workshop production efficiency, and is suitable for large-scale promotion.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of centrifugal separation equipment, and particularly relates to a centrifugal dewatering equipment for a chemical workshop. BACKGROUND

[0002] The basic principle of centrifugal separation is to use the centrifugal force generated by high-speed rotation to make the wastewater containing suspended solids rotate at high speed. Since the masses of the suspended solids and the solvent are different, the centrifugal forces they receive will also be different. The suspended solids with large mass are thrown to the outside of the wastewater, and the suspended solids with light mass move centripetally and concentrate in the inside of the centrifugal equipment. The centrifugal dewatering equipment adopts the centrifugal separation principle to separate water and solids by high-speed rotation. After separation, the solids are discharged from the drum, and the water produced by separation is discharged from the drain port of the centrifuge. The centrifugal dewatering equipment is widely used in the fields of chemical industry and biomedicine. For the field of chemical industry, centrifugal dewatering not only has the function of separation, but also can play the role of water washing. For example, in the workshop for producing trimer by sulfonating, esterifying and salifying of isophthalic acid, centrifugal dewatering equipment is used for water washing and centrifugation of refined liquid in multiple process links, which is beneficial to improving the purity of wet-based SIPM and ensuring the quality of the final product of the workshop.

[0003] At present, most centrifugal dewatering equipment using a drum is designed as a single drum. For example, CN207308121U discloses a centrifugal dewatering device, which comprises a drum, a hollow bottom shaft, a hollow top shaft, a rack and a shell. For another example, CN202322582U discloses a horizontal centrifugal dewatering machine, which mainly comprises a spiral propeller, a variable speed gear box, a main motor, an auxiliary motor, a control cabinet, a rack, a shell and a drum arranged in the shell. Such centrifugal dewatering equipment can achieve the purpose of solid-liquid separation, but it needs to be stopped for taking out the solids, or even the drum needs to be taken down to complete the taking out of the solids. On the one hand, this will cause a large amount of solids in the drum, affecting the dewatering effect. On the other hand, for a workshop that relies on the solid fraction as the main component and source of product, this will cause the production cycle to be lengthened, affecting the production efficiency of the workshop. SUMMARY

[0004] In view of the above technical problems of the centrifugal dewatering equipment, the present application provides a centrifugal dewatering equipment for a chemical workshop, which has reasonable design, adopts a double-drum design, can take out the solids while centrifuging, and is beneficial to improving the dewatering efficiency and the production efficiency of the workshop.

[0005] In order to achieve the above object, the technical scheme adopted by the present application is as follows: the centrifugal dewatering equipment for chemical plant provided by the present application comprises a machine body, a horizontal rotating shaft arranged in the center of the machine body, a bearing set arranged on the machine body and matched with the rotating shaft, a variable frequency motor arranged at one end of the rotating shaft, a rotating drum arranged on the rotating shaft and transmissionally connected with the rotating shaft, a plurality of centrifugal holes arranged on the rotating drum, the machine body comprising two left and right abutting and structurally identical outer half shells, a water outlet pipe arranged on the end face of the outer half shell away from the abutting end, a sealing ring plate arranged on the outer peripheral surface of the abutting end of the outer half shell, sealing end plates arranged at the two ends of the sealing ring plate and connected with the outer half shell, the sealing end plates and the sealing ring plate and the outer half shell being connected through flange bolts, a feed pipe arranged on the top of the sealing ring plate, the number of the rotating drums being two and each being arranged in a different outer half shell, the rotating drum comprising a rotating support ring plate matched with the inner peripheral surface of the abutting end of the outer half shell, a horn-type drum face arranged on the inner side of the ring mouth of the rotating support ring plate, the caliber of the horn-type drum face gradually increasing from the end where the rotating support ring plate is located to the abutting end away from the outer half shell, a bowl-type drum face arranged at the end of the horn-type drum face, the outer diameter of the bowl-type drum face gradually decreasing and the end of the bowl-type drum face being concave into a concave arc surface towards the abutting end of the outer half shell, a center hole arranged in the middle of the concave arc surface, a transmission bowl arranged in the center hole, the bowl mouth direction of the transmission bowl being opposite to the bowl mouth direction of the bowl-type drum face, the middle of the transmission bowl being transmissionally connected with the rotating shaft, a plurality of centrifugal holes arranged in a circular array around the center of the rotating shaft at the transition position of the horn-type drum face and the bowl-type drum face, an outfeed link assembly arranged on the inner wall of the outer half shell and supported by the rotation range of the centrifugal holes, the outfeed link assembly comprising a material receiving port corresponding to the centrifugal hole, and a solid outfeed pipe corresponding to the material receiving port arranged on the outer wall of the outer half shell.

[0006] Preferably, a flow guide bridge is arranged on the inner side of the abutting end of the two outer half shells, the cross section of the flow guide bridge is U-shaped and the U-shaped mouth faces downward, the two side faces of the flow guide bridge are nested and matched with the end face of the rotating support ring plate, and the top faces of the two ends of the flow guide bridge are inclined blocking faces and the height of the inclined blocking faces is lower than the rotating center of the rotating drum.

[0007] Preferably, the outer half shell comprises a sink port section, the sink port section is matched with the inner ring mouth of the sealing ring plate and the inner end face of the sealing end plate in a surface-to-surface manner, one end of the sink port section is provided with a first curved section which is shaped like the horn-type drum face, one end of the first curved section is provided with a second curved section which is shaped like the side face of the bowl-type drum face, the end of the second curved section is provided with an end cover, the end face of the end cover is a flat surface and is provided with a bearing seat for mounting a bearing set.

[0008] Preferably, the second curved section and the end cover are respectively provided with a first assembly flange and a second assembly flange, and the flange aperture of the first assembly flange and the second assembly flange is larger than the maximum outer diameter of the transition position between the horn-shaped drum surface and the bowl-shaped drum surface.

[0009] Preferably, the center of the end cover is provided with a mounting seat for mounting a variable frequency motor, and the outer side of the end cover is provided with a rack that is in butt joint with the first assembly flange and the second assembly flange.

[0010] Preferably, one end of the rotating support ring plate is in nested fit with the end of the sunk mouth section and the first curved section, and the surface of the rotating support ring plate in nested fit with the sunk mouth section is provided with a smooth surface sealing ring.

[0011] Preferably, the discharging connection assembly comprises a drum surface support skirt plate, the skirt edge of the drum surface support skirt plate is provided with a plurality of pairs of fixing plates connected with the inner wall of the outer half shell, the bottom of the drum surface support skirt plate is provided with a discharging funnel, the bottom edge of the discharging funnel is in sealing connection with the inner wall of the outer half shell, and the discharging port is in inverted pyramid structure and is arranged at the center of the discharging funnel.

[0012] Preferably, the transmission bowl comprises a bowl body with an arc as the generatrix, the bowl body is provided with a bowl bottom at the end opposite to the center port, the center of the bowl bottom is provided with a sunk transmission hole, the rotating shaft is provided with a shaft shoulder plate in fit with the sunk transmission hole, and a plurality of fixing pins and pin grooves in circular array are arranged between the shaft shoulder plate and the bowl bottom.

[0013] Preferably, the transition positions between the horn-shaped drum surface, the bowl-shaped drum surface and the concave arc surface all adopt circular arc transition, and the density of the centrifugal holes on the horn-shaped drum surface and the density of the centrifugal holes on the concave arc surface are both larger than the density of the centrifugal holes on the bowl-shaped drum surface.

[0014] Compared with the prior art, the centrifugal dewatering equipment has the advantages and positive effects that:

[0015] The centrifugal dewatering equipment for a chemical workshop provided by the application adopts a horizontal double-drum structure design, and the rotating drum comprises a plurality of curved sections, which increases the centrifugal dewatering working surface and is also beneficial to the movement of solid particles to the centrifugal port position, so that the solid particles can be discharged from the centrifugal port and the discharging connection assembly under the centrifugal action, the purpose of discharging while centrifugal dewatering is achieved, the working load inside the device is reduced, and the dewatering efficiency is improved. The device is rationally designed, adopts a double-rotating-drum design, can take out solid particles while centrifugal dewatering, is beneficial to improving the dewatering efficiency and the workshop production efficiency, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0017] Figure 1 A perspective view of a centrifugal dewatering device for a chemical plant according to an embodiment;

[0018] Figure 2 A side view of a centrifugal dewatering device for a chemical plant according to an embodiment;

[0019] Figure 3 A perspective view of a centrifugal dewatering device for a chemical plant according to an embodiment; Figure 2 A sectional view of a centrifugal dewatering device for a chemical plant according to an embodiment in G-G direction;

[0020] Figure 4 A front view of a centrifugal dewatering device for a chemical plant according to an embodiment;

[0021] Figure 5 A perspective view of a rotating drum according to an embodiment;

[0022] Figure 6 A front view of a rotating drum according to an embodiment;

[0023] Figure 7 A schematic view of the distribution of a discharge connection assembly inside an outer half shell;

[0024] Figure 8 A perspective view of a flow guide bridge;

[0025] Figure 9 A schematic view of the cooperation of a transmission bowl and a shaft shoulder plate according to an embodiment;

[0026] In the above drawings: 1, frame; 2, machine body; 21, outer half shell; 211, sink section; 212, first curved section; 213, second curved section; 214, end cover; 215, bearing seat; 216, first assembly flange; 217, second assembly flange; 22, water outlet; 23, solid discharge outlet; 3, rotating shaft; 31, shaft shoulder plate; 4, bearing set; 5, variable frequency motor; 6, rotating drum; 61, centrifugal hole; 62, rotating support ring plate; 63, trumpet-shaped drum surface; 64, bowl-shaped drum surface; 65, concave arc surface; 66, center hole; 67, transmission bowl; 671, bowl body; 672, bowl bottom; 68, centrifugal hole; 69, smooth surface sealing ring; 7, sealing ring plate; 71, feed inlet; 8, sealing end plate; 9, discharge connection assembly; 91, discharge port; 92, drum surface support skirt plate; 93, fixed plate; 94, discharge funnel; 10, flow guide bridge; 101, inclined blocking surface; 11, mounting seat. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, further description will be made to the present application with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict. For the convenience of description, the terms of “upper”, “lower”, “left”, “right” appearing hereinafter only represent the directions consistent with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

[0028] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details, which are not described in the present application. Therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0029] Embodiments, such as Figures 1-9As shown, the centrifugal dewatering equipment for chemical plant provided by the present application comprises a body 2, a horizontal rotating shaft 3 arranged in the center of the body 2, a bearing set 4 arranged on the body 2 and matched with the rotating shaft 3, a variable frequency motor 5 arranged at one end of the rotating shaft 3, a rotating drum 6 arranged on the rotating shaft 3 and transmissionally connected with the rotating shaft 3, and a plurality of centrifugal holes 61 arranged on the rotating drum 6. The variable frequency motor 5 can control the centrifugal rotating speed of the rotating drum 6. On this basis, the body 2 comprises two left and right abutting and structurally identical outer half shells 21, the outer half shell 21 is provided with a water outlet pipe 22 on the end face away from the abutting end thereof, the abutting end outer circumferential surface of the outer half shell 21 is provided with a sealing ring plate 7, the two ends of the sealing ring plate 7 are provided with sealing end plates 8 connected with the outer half shell 21, the sealing end plates 8 are connected with the sealing ring plate 7 and the outer half shell 21 through flange bolts, the top of the sealing ring plate 7 is provided with a feeding pipe 71, the number of the rotating drums 6 is two and each is arranged in a different outer half shell 21, the rotating drum 6 comprises a rotating support ring plate 62 matched with the inner circumferential surface of the abutting end of the outer half shell 21, the inner side of the ring opening of the rotating support ring plate 62 is provided with a horn type drum surface 63, the caliber of the horn type drum surface 63 gradually increases from the end where the rotating support ring plate 62 is arranged to the abutting end away from the outer half shell 21, the end of the horn type drum surface 63 is provided with a bowl type drum surface 64, the outer diameter of the bowl type drum surface 64 gradually decreases and the end of the bowl type drum surface is inwardly recessed into a concave arc surface 65 towards the abutting end of the outer half shell 21, the middle of the concave arc surface 65 is provided with a central opening 66, the central opening 66 is provided with a transmission bowl 67, the bowl opening direction of the transmission bowl 67 is opposite to the bowl opening direction of the bowl type drum surface 64, the middle of the transmission bowl 67 is transmissionally connected with the rotating shaft 3, a plurality of centrifugal openings 68 are arranged at the transition position of the horn type drum surface 63 and the bowl type drum surface 64 in a circular array around the center of the rotating shaft 3, the inner wall of the outer half shell 21 is provided with a discharging link assembly 9 supported corresponding to the rotating range of the centrifugal openings 68, the discharging link assembly 9 comprises a material receiving opening 91 corresponding to the centrifugal openings 68, the outer wall of the outer half shell 21 is provided with a solid discharging pipe 23 corresponding to the material receiving opening 91, the solid discharging pipe 23 can be installed with a corresponding control valve, and the control valve is used for controlling the solid discharging time.

[0030] Specifically, the radial assembly interval between the outer half shell 21 and the rotating drum 6 constitutes a water flowing space for centrifugal dewatering, so the two outer half shells 21 and the two rotating drums 6 constitute two water flowing spaces, the water outlet pipe 22 communicated with the outer half shell 21 is used for discharging the moisture generated by centrifugal, and the feeding pipe 71 is used for feeding the material to be dewatered into the two rotating drums 6, which is also the material needing water washing. The sealing end plate 8 and the sealing ring plate 7 are used for connecting the two outer half shells 21, and the outer half shell 21, the sealing end plate 8, the sealing ring plate 7 and the rotating support ring plate 62 form a plurality of seals at the abutting position of the two outer half shells 21, so as to reduce the probability of material leakage at the middle abutting surface of the equipment.

[0031] Further, the device adopts the structure design of horizontal double drums 6 inside the body 2, the two drums 6 establish transmission relationship with a rotating shaft 3 through respective transmission bowls 67, and then establish transmission connection relationship with the variable frequency motor 5, and the relative installation features of the two drums 6 are beneficial to ensure the uniformity of the stress of the rotating shaft 3 under the working condition. Further, the drum 6 includes multiple curved surfaces, such as a horn type drum surface 63, a bowl type drum surface 64, and a concave arc surface 65, according to the centrifugal effect of the curved surface design, on the basis of continuous high-speed rotation, on the one hand, the distribution surface of the centrifugal hole 61 is increased, that is, the working surface of the centrifugal dewatering is increased, especially the bowl type drum surface 64 and the concave arc surface 65 can distribute a certain amount of centrifugal materials; on the other hand, the rotating speed of the drum 6 is appropriately reduced by the variable frequency motor 5, which is beneficial to the movement and collection of the solid fraction to the centrifugal port 68 position, so that the solid fraction can be discharged from the centrifugal port 68 and the discharge connection assembly 9 under the centrifugal effect, and under the condition that the solid discharge pipe 23 at the bottom of the discharge connection assembly 9 remains closed, most of the solid fraction can still continue to centrifugal dewatering, and after the solid discharge pipe 23 is opened, the purpose of discharging while centrifugal dewatering is achieved, which reduces the working load inside the device, improves the dewatering efficiency, and further improves the workshop production efficiency.

[0032] As shown in Figure 9 , considering the assembly spacing features of the outer half shell 21 and the drum 6, the outer half shell 21 has a certain width of the feeding channel on the butt joint inner side, in order to avoid the material retention in the middle position of the two drums 6, the application is provided with a flow guide bridge 10 on the inner side of the butt joint end of the two outer half shells 21, the cross section of the flow guide bridge 10 is U-shaped and the U-shaped opening faces downward, the two side surfaces of the flow guide bridge 10 are nested with the end surface of the rotating support ring plate 62, and the two end top surfaces of the flow guide bridge 10 are inclined blocking surfaces 101 and the height of the inclined blocking surface 101 is lower than the rotating center of the drum 6. The flow guide bridge 10 is installed in the lower half of the feeding channel between the two drums 6, most of the materials poured from the feeding pipe 71 directly enter the two drums 6, and the materials distributed in the middle position flow down along the inclined blocking surface 101 and then are distributed to the two drums 6, thereby effectively avoiding the material retention between the two drums 6. Another function of the flow guide bridge 10 is to improve the assembly quality between the two rotating support ring plates 62, which is beneficial to improve the rotation stability of the two drums 6.

[0033] As shown in Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, the outer half shell 21 includes a sink section 211 which is in surface-to-surface cooperation with the inner ring port of the seal ring plate 7 and the inner end surface of the seal end plate 8, one end of the sink section 211 is provided with a first curved section 212 which is in profile cooperation with the trumpet-shaped drum surface 63, one end of the first curved section 212 is provided with a second curved section 213 which is in profile cooperation with the side surface of the bowl-shaped drum surface 64, the end of the second curved section 213 is provided with an end cover 214, the end surface of the end cover 214 is a plane and is provided with a bearing seat 215 for installing the bearing set 4. The outer half shell 21 and the rotating drum 6 of the present application adopt curved profile cooperation design, which can improve the uniformity of the moisture flow space after dehydration generated by centrifugal / washing on one hand, on the other hand, reasonable design of the space interval per unit axial length is also conducive to the moisture backflushing of the centrifugal hole 61, which is conducive to reducing the probability of blockage of the centrifugal hole 61 and improving the dehydration efficiency of the equipment. The end cover 214 adopts a plane design, which provides an effective mounting surface for the bearing seat 215 and the variable frequency motor 5.

[0034] As shown in Figure 3 and Figure 4 As shown, considering the need to regularly inspect and replace the rotating drum 6, the second curved section 213 and the end cover 214 of the outer half shell 21 of the present application adopt a detachable design, such as providing a first assembly flange 216 and a second assembly flange 217 on the second curved section 213 and the end cover 214 respectively, the flange diameter of the first assembly flange 216 and the second assembly flange 217 is larger than the maximum outer diameter of the transition position of the trumpet-shaped drum surface 63 and the bowl-shaped drum surface 64, and the rotating support ring plate 62 and the trumpet-shaped drum surface 63 are connected by screws. By disassembling and assembling the flange bolts connecting the first assembly flange 216 and the second assembly flange 217, the purpose of opening the internal space of the outer half shell 21 can be achieved, that is, the large end of the rotating drum 6 is exposed in the visible range, and the screws on the rotating support ring plate 62 and the trumpet-shaped drum surface 63 can be removed to disassemble the rotating drum 6 from the inside of the outer half shell 21, and the minimum diameter of the second curved section 213 will not affect the maximum diameter position of the rotating drum 6, so as to meet the disassembly requirements.

[0035] In order to improve the installation stability of the equipment in the workshop, the present application provides a mounting seat 11 for installing the variable frequency motor 5 in the center of the end cover 214, at the same time, the present application provides a rack 1 which is in butt joint with the first assembly flange 216 and the second assembly flange 217 outside the end cover 214, the rack 1 includes a flange section which cooperates with the first assembly flange 216 and the second assembly flange 217, and a support section which is welded with the flange section, the support section can adopt a frame type design to ensure that it has sufficient support strength and support span, and a castor can also be installed at the bottom of the rack 1 to provide structural support for the moving function of the equipment.

[0036] As shown in Figure 3As shown, one end of the rotating support ring plate 62 is nested with the end of the sunk mouth section 211 and the first curved section 212, which plays a role of supporting the end port of the rotating drum 6 and also plays a certain sealing role, preventing the material from entering the water outlet program without passing through the centrifugal hole 61; the surface of the rotating support ring plate 62 nested with the sunk mouth section 211 is provided with a smooth surface sealing ring 69, which is beneficial to improve the sealing of the support ring plate and the outer half shell 21, and also beneficial to reduce the rotating friction of the entire rotating drum 6, ensuring the rotating balance of the rotating drum 6.

[0037] As shown in Figure 3 and Figure 7 As shown, the discharge connection assembly 9 includes a drum surface support skirt plate 92, which is also distributed with a plurality of centrifugal holes 61, and the skirt edge of the drum surface support skirt plate 92 is provided with a plurality of fixed plates 93 connected with the inner wall of the outer half shell 21, and the bottom middle position of the drum surface support skirt plate 92 is provided with a discharge funnel 94, the bottom edge of which is sealingly connected with the inner wall of the outer half shell 21, and the receiving port 91 is in inverted pyramid structure and is arranged at the center of the discharge funnel 94. The drum surface support skirt plate 92 is fixed in the inner part of the outer half shell 21 by the fixed plate 93, and the material with centrifugal discharge tendency at the centrifugal port 68 position of the rotating drum 6 can maintain the centrifugal dewatering process when passing through the centrifugal hole 61 of the drum surface support skirt plate 92, and for the material passing through the discharge funnel 94 position, since the material has been subjected to centrifugal dewatering treatment for a period of time, the solid components close to the drum surface of the rotating drum 6 can enter the discharge funnel 94 under the dual action of centrifugal force and gravity, and then be discharged from the receiving port 91 and the solid discharge pipe 23.

[0038] As shown in Figure 9 As shown, the transmission bowl 67 includes a bowl body 671 with an arc-shaped female line, so that the transmission bowl 67 can improve the efficiency of the material distribution under the centrifugal force to the drum surface position of the rotating drum 6; in order to improve the transmission connection effect with the rotating shaft 3, the bowl body 671 is provided with a bowl bottom 672 at the end opposite to the center port 66, the center of the bowl bottom 672 is provided with a countersunk transmission hole, the rotating shaft 3 is provided with a shaft shoulder plate 31 matched with the countersunk transmission hole, and a plurality of fixed pins and pin grooves arranged in a circular array are arranged between the shaft shoulder plate 31 and the bowl bottom 672. The front end position of the rotating drum 6 is positioned by the rotating support ring plate 62, and the rear end position of the rotating drum 6 is positioned by the shaft shoulder plate and the transmission bowl 67, and the rotating shaft 3 quickly establishes a transmission connection relationship with the transmission bowl 67 through the fixed pins and pin grooves, thereby ensuring the synchronous transmission effect of the rotating shaft 3 to the two rotating drums 6, and also being beneficial to improve the uniformity of the material distribution in the two rotating drums 6.

[0039] As shown in Figure 3As shown, the transition positions of the trumpet-shaped drum surface 63, the bowl-shaped drum surface 64 and the concave arc surface 65 all adopt arc transition, and the density of the centrifugal holes 61 on the trumpet-shaped drum surface 63 and the density of the centrifugal holes 61 on the concave arc surface 65 are both greater than the density of the centrifugal holes 61 on the bowl-shaped drum surface 64. If the drum surface of the rotary drum 6 adopts arc transition at the position where the turning occurs, the wall sticking effect of the material can be improved, the dead angle of the material retention can be reduced, and the dehydration efficiency can be improved. Meanwhile, the design of the distribution density of the centrifugal holes 61 on different curved surfaces, especially because the solid inventory of the bowl-shaped drum surface 64 is large after the rotary drum 6 is decelerated, the centrifugal hole 61 with smaller density is adopted, which can avoid that the material at this position is not good in water discharge and leads to too large quality, and the discharge efficiency of the solid component can be ensured.

[0040] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms. Any person skilled in the art can modify or change the above disclosed technical content into equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belong to the protection scope of the present application technical solution.

Claims

1. A centrifugal dehydration device for a chemical workshop, comprising a body, a horizontal rotating shaft is provided at the center of the body, a bearing group is provided on the body to support and cooperate with the rotating shaft, a variable frequency motor is provided at one end of the rotating shaft, a rotating drum is provided on the rotating shaft to be transmission-connected thereto, and a plurality of centrifugal holes are provided on the rotating drum, characterized in that: The body comprises two outer half shells that are butted together on the left and right and have the same structure, and the outer half shells are provided with a water outlet on the end face away from the butt end thereof, and a sealing ring plate is provided on the outer circumferential surface of the butt end of the outer half shell, and sealing end plates connected to the outer half shell are provided at both ends of the sealing ring plate, and the sealing end plate is connected to the sealing ring plate and the outer half shell by flange bolts, and a feed pipe port is provided on the top of the sealing ring plate, and the number of the rotating drums is two and they are arranged one by one in different outer half shells, and the rotating drum comprises a rotating support ring plate that cooperates with the inner circumferential surface of the butt end of the outer half shell, and a trumpet-shaped drum surface is provided on the inner side of the ring opening of the rotating support ring plate, and the diameter of the trumpet-shaped drum surface gradually increases from the end where the rotating support ring plate is located to the butt end away from the outer half shell, and a bowl-shaped drum surface is provided at the end of the trumpet-shaped drum surface, and the outer diameter of the bowl-shaped drum surface gradually decreases and the end of the bowl-shaped surface is concave toward the butt end of the outer half shell to form a concave arc surface, and a middle arc surface is provided in the middle of the concave arc surface. The center mouth is provided with a transmission bowl, the bowl mouth direction of the transmission bowl is opposite to the bowl mouth direction of the bowl-shaped drum surface, the middle of the transmission bowl is connected to the rotating shaft, and the transition position between the trumpet-shaped drum surface and the bowl-shaped drum surface is provided with a plurality of centrifugal openings distributed in a circular array around the center of the rotating shaft, the inner wall of the outer half shell is provided with a discharge connection component supported corresponding to the rotation range of the centrifugal opening, the discharge connection component includes a receiving port corresponding to the centrifugal opening, and the outer wall of the outer half shell is provided with a solid discharge pipe opening corresponding to the receiving port; the discharge connection component includes a drum surface support skirt, and a plurality of centrifugal holes are provided on the drum surface support skirt, and the skirt edge of the drum surface support skirt is provided with a plurality of pairs of fixed plates connected to the inner wall of the outer half shell, and a discharge funnel is provided at the middle position of the bottom of the drum surface support skirt, and the bottom edge of the discharge funnel is sealed with the inner wall of the outer half shell, and the receiving port is an inverted pyramid structure and is provided at the center of the discharge funnel.

2. A centrifugal dehydration equipment for chemical workshops according to claim 1, characterized in that: A guide bridge is provided on the inner side of the butt end of the two outer half shells. The cross section of the guide bridge is U-shaped with the U-shaped opening facing downward. The two side surfaces of the guide bridge are nested with the end surface of the rotating support ring plate. The top surfaces of the two ends of the guide bridge are inclined blocking surfaces and the height of the inclined blocking surfaces is lower than the rotation center of the drum.

3. A centrifugal dehydration equipment for chemical workshops according to claim 2, characterized in that: The outer half shell includes a countersunk section, which is surface-to-surface matched with the inner ring opening of the sealing ring plate and the inner end surface of the sealing end plate. One end of the countersunk section is provided with a first curved surface section that imitates the trumpet-shaped drum surface, and one end of the first curved surface section is provided with a second curved surface section that imitates the side surface of the bowl-shaped drum surface. The end of the second curved surface section is provided with an end cover, and the end surface of the end cover is flat and is provided with a bearing seat for mounting the bearing group.

4. A centrifugal dehydration equipment for chemical workshops according to claim 3, characterized in that: The second curved surface segment and the end cover are respectively provided with a first assembly flange and a second assembly flange, and the flange diameters of the first assembly flange and the second assembly flange are larger than the maximum outer diameter of the transition position between the trumpet-shaped drum head and the bowl-shaped drum head.

5. A centrifugal dehydration equipment for chemical workshops according to claim 4, characterized in that: A mounting base for mounting the variable frequency motor is provided at the center of the end cover, and a frame docking with the first mounting flange and the second mounting flange is provided on the outer side of the end cover.

6. A centrifugal dehydration equipment for chemical workshops according to any one of claims 3 to 5, characterized in that: One end of the rotating support ring plate is nested with the countersunk section and the end of the first curved section, and a smooth sealing ring is provided on the nested surface of the rotating support ring plate and the countersunk section.

7. The centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: The transmission bowl includes a bowl body with an arc busbar, a bowl bottom is provided at the end of the bowl body opposite to the center opening, a countersunk transmission hole is provided at the center of the bowl bottom, a shoulder plate is provided on the rotating shaft to match the countersunk transmission hole, and a plurality of fixing pins and pin grooves distributed in a circular array are provided between the shoulder plate and the bowl bottom.

8. The centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: The transition positions of the trumpet-shaped drum surface, bowl-shaped drum surface and concave arc surface all adopt arc transition. The centrifugal hole density on the trumpet-shaped drum surface and the centrifugal hole density on the concave arc surface are both greater than the centrifugal hole density on the bowl-shaped drum surface.

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