Centrifugal dewatering equipment for chemical workshop

Abstract

The invention belongs to the field of centrifugal separation equipment, and provides centrifugal dewatering equipment for a chemical workshop, the centrifugal dewatering equipment comprises a machine body, a rotating shaft, a bearing pack, a variable frequency motor and a rotating drum, the machine body comprises two outer half shells, a water outlet pipe orifice and a solid discharging pipe orifice, and a sealing ring plate and a feeding pipe orifice are arranged on the peripheral surface of the butt joint end of each outer half shell; the number of the rotary drums is two, the rotary drums are arranged in different outer half shells one by one, each rotary drum comprises a rotary supporting ring plate, a horn-shaped drum surface, a bowl-shaped drum surface, a concave arc surface, a central opening and a transmission bowl, the middle of each transmission bowl is in transmission connection with the rotary shaft, and a plurality of centrifugal openings are formed in the transition position of each horn-shaped drum surface and the corresponding bowl-shaped drum surface; a discharging connection assembly correspondingly supported by the rotation range of the centrifugal opening is arranged on the inner wall of the outer half shell, and the discharging connection assembly corresponds to the solid discharging pipe opening. The double-drum centrifugal machine is reasonable in design, adopts a double-drum design, can take out solids while centrifuging, is favorable for improving the dehydration efficiency and the workshop production efficiency, and is suitable for large-scale popularization.

Description

Technical Field

[0001] The invention belongs to the field of centrifugal separation equipment, and in particular relates to centrifugal dehydration equipment for chemical workshops. Background Art

[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. Due to the different masses of suspended solids and solvents, the centrifugal force they are subjected to will also be different. The suspended solids with large mass are thrown to the outside of the wastewater, and the light mass moves centripetally and is concentrated in the innermost part of the centrifugal equipment. The centrifugal dehydration equipment adopts the principle of centrifugal separation to separate water and solids through high-speed rotation. After separation, the solids are discharged from the drum, and the water generated by the separation is discharged from the drain port of the centrifuge. Centrifugal dehydration equipment is widely used in the chemical and biomedical fields. For the chemical field, centrifugal dehydration not only has the function of separation, but also can play the role of water washing. For example, in the workshop where sodium 5-sulfonate of dimethyl phthalate (SIPM) uses isophthalic acid sulfonation, esterification, and salt formation to produce three monomers, centrifugal dehydration equipment is needed in multiple process links to wash and centrifuge the refined liquid, which is beneficial to improve the purity of wet-based SIPM, thereby ensuring the quality of the final product of the workshop.

[0003] At present, most centrifugal dehydration equipment using a drum is a single-drum design, such as a centrifugal dehydration device disclosed in CN207308121U, including a drum, a hollow bottom shaft, a hollow top shaft, a frame and a shell. Another example is a horizontal centrifugal dehydrator disclosed in patent CN202322582U, which is mainly composed of a screw propeller, a speed change gear box, a main motor, an auxiliary motor, a control cabinet, a frame, a shell and a drum arranged in the shell. Such centrifugal dehydration equipment can achieve the purpose of solid-liquid separation, but when taking solids, it is necessary to stop the machine to take materials, and even the drum needs to be taken down to complete the taking of materials. On the one hand, it will lead to a large amount of solids in the drum, affecting the dehydration effect. On the other hand, for workshops that rely on solids as the main component and source of products, this will lead to a longer production cycle and affect the production efficiency of the workshop. Summary of the invention

[0004] In view of the technical problems existing in the above-mentioned centrifugal dehydration equipment, the present invention proposes a centrifugal dehydration equipment for chemical workshops which has a reasonable design, adopts a double drum design, can remove solids while centrifuging, and is beneficial to improving the dehydration efficiency and workshop production efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a centrifugal dehydration equipment for a chemical workshop provided by the present invention comprises a body, a horizontal rotating shaft is arranged at the center of the body, a bearing group matched with the rotating shaft support is arranged on the body, a variable frequency motor is arranged at one end of the rotating shaft, a rotating drum connected to the rotating shaft for transmission is arranged on the rotating shaft, a plurality of centrifugal holes are arranged on the rotating drum, the body comprises two outer half shells butted on the left and right and having the same structure, the outer half shells are provided with a water outlet on the end face away from the butt end thereof, a sealing ring plate is arranged on the outer circumferential surface of the butt end of the outer half shell, sealing end plates connected to the outer half shell are arranged at both ends of the sealing ring plate, the sealing end plate is connected to the sealing ring plate and the outer half shell by flange bolts, a feed pipe opening is arranged on the top of the sealing ring plate, the number of the drums is two and they are arranged one by one in different outer half shells, the drum comprises a butt end matched with the inner circumferential surface of the butt end of the outer half shell 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 center opening is provided in the middle of the concave arc surface, and a transmission bowl is provided in the center opening, and the bowl opening direction of the transmission bowl is opposite to the bowl opening direction of the bowl-shaped drum surface, and the middle of the transmission bowl is connected to the rotating shaft for transmission, and a plurality of centrifugal openings distributed in a circular array around the center of the rotating shaft are provided at the transition position between the trumpet-shaped drum surface and the bowl-shaped drum surface, and 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, and the discharge connection component includes a receiving opening 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 opening.

[0006] Preferably, a guide bridge is provided on the inner side of the butt ends 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 at both 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.

[0007] Preferably, 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, and one end of the countersunk section is provided with a first curved surface section that is shaped like a trumpet-shaped drum surface, and one end of the first curved surface section is provided with a second curved surface section that is shaped like the side surface of a bowl-shaped drum surface, and 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 a bearing group.

[0008] Preferably, the second curved surface segment and the end cover are respectively provided with a first mounting flange and a second mounting flange, and the flange diameters of the first mounting flange and the second mounting flange are larger than the maximum outer diameter of the transition position between the trumpet-shaped drum surface and the bowl-shaped drum surface.

[0009] Preferably, a mounting seat 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.

[0010] Preferably, 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.

[0011] Preferably, the discharge connection assembly includes a drum surface supporting skirt, the skirt edge of the drum surface supporting skirt is provided with multiple pairs of fixed plates connected to the inner wall of the outer half shell, a discharge funnel is provided at the middle position of the bottom of the drum surface supporting skirt, the bottom edge of the discharge funnel is sealed with the inner wall of the outer half shell, and the material receiving port is an inverted pyramid structure and is arranged at the center of the discharge funnel.

[0012] Preferably, the transmission bowl comprises a bowl body whose generatrix is ​​an arc, 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 matching the countersunk transmission hole is provided on the rotating shaft, and a plurality of fixing pins and pin grooves distributed in a circular array are provided between the shoulder plate and the bowl bottom.

[0013] Preferably, the transition positions of the trumpet-shaped drum surface, bowl-shaped drum surface and concave arc surface all adopt arc transition, and 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.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] The present invention provides a centrifugal dehydration equipment for chemical workshops, which adopts a horizontal double-drum structural design, and the drum includes multiple curved surfaces, which increases the working surface of the centrifugal dehydration on the one hand, and is also conducive to the movement of the solids to the centrifugal outlet position on the other hand. The solids can be discharged from the centrifugal outlet and the discharging connection assembly under the centrifugal action, so as to achieve the purpose of discharging while centrifuging, reduce the internal workload of the equipment, and improve the dehydration efficiency. The device is reasonably designed, reasonably designed, adopts a double-drum design, and can remove solids while centrifuging, which is conducive to improving the dehydration efficiency and workshop production efficiency, and is suitable for large-scale promotion. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 An axonometric diagram of a centrifugal dehydration device for a chemical workshop provided in an embodiment;

[0018] Figure 2 A side view of a centrifugal dehydration device for a chemical workshop provided in an embodiment;

[0019] Figure 3 for Figure 2 A cross-sectional view of a centrifugal dehydration equipment for a chemical workshop in the GG direction;

[0020] Figure 4 A front view of a centrifugal dehydration device for a chemical workshop provided in an embodiment;

[0021] Figure 5 An axonometric view of a rotating drum provided for an embodiment;

[0022] Figure 6 A front view of a rotating drum provided in an embodiment;

[0023] Figure 7 A schematic diagram of the distribution of the discharge connection components inside the outer half shell;

[0024] Figure 8 This is the axonometric drawing of the diversion bridge;

[0025] Fig. 9 A schematic diagram of the cooperation between the transmission bowl and the upper shoulder plate of the rotating shaft provided in the embodiment;

[0026] In the above figures: 1, frame; 2, body; 21, outer half shell; 211, countersunk 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 material outlet; 3, rotating shaft; 31, shoulder plate; 4, bearing assembly; 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 opening; 67. Transmission bowl; 671. Bowl body; 672. Bowl bottom; 68. Centrifugal opening; 69. Smooth sealing ring; 7. Sealing ring plate; 71. Feed pipe opening; 8. Sealing end plate; 9. Discharge connection assembly; 91. Feeding opening; 92. Drum surface supporting skirt plate; 93. Fixed plate; 94. Discharge funnel; 10. Guide bridge; 101. Oblique plugging surface; 11. Mounting seat. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with 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, if the words "upper", "lower", "left" and "right" appear below, they only indicate that the upper, lower, left and right directions are consistent with the accompanying drawings themselves, and do not limit the structure.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0029] Examples, such as Figure 1-Figure 9As shown, the present invention provides a centrifugal dehydration device for chemical workshops, including a body 2, a horizontal rotating shaft 3 is arranged at the center of the body 2, a bearing group 4 supporting and cooperating with the rotating shaft 3 is arranged on the body 2, a variable frequency motor 5 is arranged at one end of the rotating shaft 3, a rotating drum 6 connected to the rotating shaft 3 is arranged on the rotating shaft 3, and a plurality of centrifugal holes 61 are arranged on the rotating drum 6. The variable frequency motor 5 can control the centrifugal speed of the rotating drum 6. On this basis, the body 2 provided by the present invention includes two outer half shells 21 that are butt-jointed on the left and right and have the same structure. The outer half shell 21 is provided with a water outlet pipe port 22 on the end face away from its butt end. A sealing ring plate 7 is provided on the outer peripheral surface of the butt end of the outer half shell 21. Both ends of the sealing ring plate 7 are provided with sealing end plates 8 connected to the outer half shell 21. The sealing end plate 8 is connected to the sealing ring plate 7 and the outer half shell 21 through flange bolts. A feed pipe port 71 is provided on the top of the sealing ring plate 7. There are two rotating drums 6, which are arranged one by one in different outer half shells 21. The rotating drum 6 includes a rotating support ring plate 62 that matches the inner peripheral surface of the butt end of the outer half shell 21. A trumpet-shaped drum surface 63 is provided on the inner side of the ring opening of the rotating support ring plate 62. The diameter of the trumpet-shaped drum surface 63 gradually increases from the end where the rotating support ring plate 62 is located to the butt end away from the outer half shell 21. The end of the trumpet-shaped drum surface 63 is provided with A bowl-shaped drum surface 64, the outer diameter of which gradually decreases and the end of the bowl-shaped surface is concave toward the docking end of the outer half shell 21 to form a concave arc surface 65, a center opening 66 is provided in the middle of the concave arc surface 65, a transmission bowl 67 is provided in the center opening 66, the bowl mouth direction of the transmission bowl 67 is opposite to the bowl mouth direction of the bowl-shaped drum surface 64, the middle of the transmission bowl 67 is transmission-connected to the rotating shaft 3, a plurality of centrifugal openings 68 distributed in a circular array around the center of the rotating shaft 3 are provided at the transition position between the trumpet-shaped drum surface 63 and the bowl-shaped drum surface 64, the inner wall of the outer half shell 21 is provided with a discharge connection component 9 supported corresponding to the rotation range of the centrifugal opening 68, the discharge connection component 9 includes a receiving port 91 corresponding to the centrifugal opening 68, the outer wall of the outer half shell 21 is provided with a solid discharge pipe opening 23 corresponding to the receiving port 91, the solid discharge pipe opening 23 can be installed with a corresponding control valve, and the control valve is used to control the timing of solid discharge.

[0030] Specifically, the radial assembly interval between the outer half shell 21 and the drum 6 constitutes a water flow space for centrifugal dehydration, so the two outer half shells 21 and the two drums 6 constitute two water flow spaces, and the water outlet 22 connected to the outer half shell 21 is used to discharge the water generated by centrifugation, and the material to be dehydrated, which is also the material that needs to be washed, is pumped into the two drums 6 through the feed pipe 71. The sealing end plate 8 and the sealing ring plate 7 not only connect the two outer half shells 21, but also form a multi-stage seal at the docking position of the two outer half shells 21, which is used to reduce the probability of leakage of the material at the middle docking surface of the device.

[0031] Furthermore, the present device adopts a horizontal double-drum structural design inside the body 2. The two drums 6 simultaneously establish a transmission relationship with a rotating shaft 3 through their respective transmission bowls 67, and then establish a transmission connection relationship with the variable frequency motor 5. The relative installation characteristics of the two drums 6 are conducive to ensuring the uniform force of the rotating shaft 3 under working conditions. Furthermore, the drum 6 includes multiple curved surfaces, such as a trumpet-shaped drum surface 63, a bowl-shaped drum surface 64 and a concave arc surface 65. According to the centrifugal effect of its curved surface design, on the basis of its continuous high-speed rotation, on the one hand, the distribution surface of the centrifugal holes 61 is increased, that is, the working surface of the centrifugal dehydration is increased, especially the bowl-shaped drum surface 64 and the concave arc surface 65 can distribute a certain volume of centrifugal material; on the other hand, the frequency conversion motor 5 is used to appropriately reduce the rotation speed of the drum 6, which is conducive to the movement and collection of the solids to the centrifugal port 68, so that the solids can be discharged from the centrifugal port 68 and the discharge connection component 9 under the action of centrifugation. When the solid discharge pipe 23 at the bottom of the discharge connection component 9 remains closed, most of the solids can continue to be centrifugally dehydrated. After the solid discharge pipe 23 is opened, the purpose of discharging while centrifuging can be achieved, which reduces the workload inside the equipment, improves the dehydration efficiency, and thus improves the workshop production efficiency.

[0032] like Fig. 9 As shown, considering the assembly spacing characteristics of the outer half shell 21 and the drum 6, a feed channel of a certain width is provided on the inner side of the joint of the outer half shell 21. In order to prevent the material from being retained in the middle position of the two drums 6, the present invention provides a guide bridge 10 on the inner side of the joint ends of the two outer half shells 21. The cross section of the guide bridge 10 is U-shaped and the U-shaped mouth faces downward. The two side surfaces of the guide bridge 10 are nested with the end surface of the rotating support ring plate 62. The top surfaces of the two ends of the guide bridge 10 are inclined plugging surfaces 101 and the height of the inclined plugging surfaces 101 is lower than the rotation center of the drum 6. The guide bridge 10 is installed in the lower half of the feed channel between the two drums 6. Most of the materials input from the feed pipe port 71 directly enter the two drums 6. The materials distributed in the middle position flow down along the inclined plugging surface 101 and are distributed to the two drums 6, thereby effectively preventing the materials from being retained between the two drums 6. Another function of the guide bridge 10 is to improve the assembly quality between the two rotating support ring plates 62 , which is beneficial to improving the rotation stability of the two drums 6 .

[0033] like Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, the outer half shell 21 includes a countersunk section 211, which is in surface-to-surface contact with the inner ring opening of the sealing ring plate 7 and the inner end surface of the sealing end plate 8. One end of the countersunk section 211 is provided with a first curved section 212 that is in profile with the trumpet-shaped drum surface 63, and one end of the first curved section 212 is provided with a second curved section 213 that is in profile 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, and the end surface of the end cover 214 is a plane and is provided with a bearing seat 215 for mounting the bearing group 4. The outer half shell 21 and the rotating drum 6 provided by the present invention adopt a curved surface profile design, which can improve the uniformity of the flow space of the water generated by centrifugation / water washing after dehydration on the one hand, and on the other hand, the reasonable design of the spacing of the space per unit axial length is also conducive to the water to have a certain recoil on 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 device. The end of the end cover 214 is designed to be flat, thereby providing an effective mounting surface for mounting the bearing seat 215 and the variable frequency motor 5 .

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

[0035] In order to improve the installation stability of the equipment in the workshop, the present invention is provided with a mounting base 11 for mounting the variable frequency motor 5 at the center of the end cover 214. At the same time, the present invention is provided with a frame 1 docking with the first mounting flange 216 and the second mounting flange 217 on the outer side of the end cover 214. The frame 1 includes a flange section matching the first mounting flange 216 and the second mounting flange 217 and a support section welded to the flange section. The support section can adopt a frame design to ensure that it has sufficient supporting strength and supporting span. Casters can also be installed at the bottom of the frame 1 to provide structural support for the mobile function of the equipment.

[0036] like Figure 3As shown, one end of the rotating support ring plate 62 is nested with the end of the countersunk section 211 and the first curved section 212, and while supporting the port of the drum 6, it also plays a certain sealing role to prevent the material from entering the water outlet process without passing through the centrifugal hole 61; a smooth sealing ring 69 is provided on the surface where the rotating support ring plate 62 and the countersunk section 211 are nested, and the smooth sealing ring 69 is beneficial to improving the sealing performance of the sealing support ring plate and the outer half shell 21, and is also beneficial to reducing the rotational friction of the entire drum 6, thereby ensuring the rotational balance of the drum 6.

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

[0038] like Fig. 9 As shown, the transmission bowl 67 includes a bowl body 671 with a generatrix as an arc, so that the transmission bowl 67 can improve the efficiency of the material distribution toward the drum surface position of the rotating drum 6 under the centrifugal action; in order to improve the transmission connection effect with the rotating shaft 3, the bowl body 671 of the present invention is provided with a bowl bottom 672 at the end opposite to the center opening 66, and the center of the bowl bottom 672 is provided with a countersunk transmission hole, and the rotating shaft 3 is provided with a shoulder plate 31 matched with the countersunk transmission hole, and a plurality of fixed pins and pin grooves distributed in a circular array are provided between the 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 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 pin and the pin groove, thereby ensuring the synchronous transmission effect of the rotating shaft 3 on the two rotating drums 6, and also conducive to improving the uniformity of the material distribution inside the two rotating drums 6.

[0039] like 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 are all arc transitions, and the density of the centrifugal holes 61 on the trumpet-shaped drum surface 63 and 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 drum 6 adopts an arc transition at the turning position, it is beneficial to improve the wall adhesion effect of the material, reduce the dead corner of the material retention, and improve the dehydration efficiency; at the same time, 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 after the drum 6 is decelerated is large, the use of a lower density of the centrifugal holes 61 can avoid the excessive mass caused by poor water discharge of the material at this position, which is beneficial to ensure the discharge efficiency of the solid components.

[0040] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A centrifugal dehydration device for a chemical workshop, comprising a body, a horizontal rotating shaft is arranged at the center of the body, a bearing group matched with the rotating shaft support is arranged on the body, a variable frequency motor is arranged at one end of the rotating shaft, a rotating drum connected to the rotating shaft is arranged on the rotating shaft, and a plurality of centrifugal holes are arranged on the rotating drum, characterized in that: The machine body includes two outer half shells which are butt-jointed on the left and right and have the same structure. The outer half shells are provided with a water outlet on the end face away from the butt end thereof. A sealing ring plate is provided on the outer peripheral surface of the butt end of the outer half shells. Both ends of the sealing ring plate are provided with sealing end plates connected to the outer half shells. The sealing end plate is connected to the sealing ring plate and the outer half shells by flange bolts. A feed pipe port is provided on the top of the sealing ring plate. The number of the drums is two and they are arranged one by one in different outer half shells. The drum includes a rotating support ring plate which cooperates with the inner peripheral surface of the butt end of the outer half shell. A trumpet-shaped drum surface is provided on the inner side of the ring opening of the rotating support ring plate. 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. A bowl-shaped drum surface is arranged at the end of the trumpet-shaped drum surface, the outer diameter of the bowl-shaped drum surface gradually decreases and the end of the bowl-shaped surface is concavely formed into a concave arc surface toward the docking end of the outer half shell, a center opening is arranged in the middle of the concave arc surface, a transmission bowl is arranged in the center opening, 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 in transmission, a plurality of centrifugal openings distributed in a circular array around the center of the rotating shaft are arranged at the transition position between the trumpet-shaped drum surface and the bowl-shaped drum surface, a discharge connection component supported corresponding to the rotation range of the centrifugal opening is arranged on the inner wall of the outer half shell, the discharge connection component includes a receiving port corresponding to the centrifugal opening, and a solid discharge pipe opening corresponding to the receiving port is arranged on the outer wall of the outer half shell.

2. A centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: A guide bridge is arranged 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 mouth 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 workshop 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 is shaped like a trumpet-shaped drum surface, and one end of the first curved surface section is provided with a second curved surface section that is shaped like the side surface of a 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 a bearing group.

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

5. A centrifugal dehydration equipment for chemical workshop according to claim 4, characterized in that: A mounting seat for mounting the variable frequency motor is arranged at the center of the end cover, and a frame docking with the first mounting flange and the second mounting flange is arranged 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 surface where the rotating support ring plate and the countersunk section are nested.

7. The centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: The discharge connection assembly includes a drum surface supporting skirt, the skirt edge of the drum surface supporting skirt is provided with multiple pairs of fixed plates connected to the inner wall of the outer half shell, a discharge funnel is provided at the middle position of the bottom of the drum surface supporting skirt, the bottom edge of the discharge funnel is sealed with the inner wall of the outer half shell, and the material receiving port is an inverted pyramid structure and is arranged at the center of the discharge funnel.

8. The centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: The transmission bowl includes a bowl body whose generatrix is ​​an arc, 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 matching the countersunk transmission hole is provided on the rotating shaft, and a plurality of fixing pins and pin grooves distributed in a circular array are provided between the shoulder plate and the bowl bottom.

9. The centrifugal dehydration equipment for chemical workshop according to claim 1, characterized in that: The transition positions of the trumpet-shaped drum surface, the bowl-shaped drum surface and the concave arc surface all adopt arc transition, and 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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