Sedimentation centrifuge for impurity separation

Abstract

The invention relates to the technical field of centrifuges, in particular to a sedimentation centrifuge for impurity separation, which comprises a cover fixedly connected to the top of the sedimentation centrifuge, a first motor fixedly connected to the bottom of the sedimentation centrifuge, and fixing plates symmetrically arranged fixedly connected to the bottom of the cover. The fixing piece is fixedly connected to the bottom of the cover, clamping holes are formed in the two sides of the fixing piece, the connecting plate is fixedly connected between the symmetrically-arranged fixing plates, the connecting plate is an inclined plate with the outer side inclining downwards, and the first guide rail is fixedly connected to the connecting plate. Materials are evenly stirred through the rotating piece, when the materials on the bottom plate reach a certain amount, the bottom plate can move downwards, a gap is reserved between the bottom plate and the fixing piece, and the materials can flow into a rotary drum of the sedimentation centrifuge through the gap, so that the materials are more uniform, the amount of the materials subjected to centrifugal separation can be limited, centrifugal force is balanced, and the efficiency is improved. The centrifugation period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuges, and in particular to a sedimentation centrifuge for separating impurities. Background Art

[0002] The sedimentation centrifuge is a device used to separate solids from liquids in suspensions. It achieves the effect of solid-liquid separation by generating centrifugal force through rotation. It is widely used in the separation of various suspensions such as chemical precipitates and coal powder.

[0003] First, the staff needs to add the suspension into the centrifuge from the feed port, start the motor to drive the centrifuge to rotate, and the rotation of the centrifuge will drive the suspension to rotate. Because the density of the solid particles and the liquid in the suspension is different, the solid and the liquid will separate, and the solid particles will settle on the wall of the drum to form sediment, while the liquid will form an annular liquid layer under the action of centrifugal force, and finally be discharged through the overflow port of the drum or the suction tube. The above operation can realize the solid-liquid separation of the suspension, but because the existing technology puts the separated materials into the centrifuge in batches, it is impossible to achieve uniform feeding, and there will be uneven centrifugal force due to uneven feeding, which will extend the production cycle. Therefore, it is necessary to design a sedimentation centrifuge for impurity separation, which can make the feeding uniform, enhance the separation effect and shorten the production cycle. Summary of the invention

[0004] The invention provides a sedimentation centrifuge for impurity separation, which can make the feed uniform, enhance the separation effect and shorten the production cycle, and is used to overcome the shortcomings of the prior art that uneven feed leads to uneven centrifugal force and prolongs the production cycle.

[0005] The technical solution of the present invention is: a sedimentation centrifuge for impurity separation, comprising a cover, the cover is fixedly connected to the top of the sedimentation centrifuge, a first motor is fixedly connected to the bottom of the sedimentation centrifuge, and is characterized in that it also includes a fixing plate, a symmetrically arranged fixing plate is fixedly connected to the bottom of the cover, a fixing piece is fixedly connected to the bottom of the cover, a clamping hole is opened on both sides of the fixing piece, a connecting plate is fixedly connected between the symmetrically arranged fixing plates, the connecting plate is an inclined plate inclined downward to the outside, a first guide rail is fixedly connected to the connecting plate, a bottom plate is slidably connected to the first guide rail, and a pressure A force spring is wound on the first guide rail, one end of the pressure spring is fixedly connected to the base plate, the other end of the pressure spring is fixedly connected to the first guide rail, a symmetrically arranged second guide rail is fixedly connected to the side of the base plate, the buckle is slidably connected to the second guide rail, the outer side of the buckle is a hemisphere, the hemisphere of the buckle is engaged with the hole on the fixing part, the compression spring is wound on the second guide rail, one end of the compression spring is fixedly connected to the buckle, the other end of the compression spring is fixedly connected to the second guide rail, a stirring assembly is arranged inside the fixing part, and the stirring assembly is used to stir the material.

[0006] Furthermore, the stirring assembly includes a fixed rod, the symmetrically arranged fixed rod is fixedly connected to the inner side of the fixed part, the protective shell is connected between the symmetrically arranged fixed rods, the second motor is fixedly connected in the protective shell, the rotating shaft is rotatably connected to the output shaft of the second motor, two groups of longitudinally symmetrically arranged rotating parts are fixedly connected to the rotating shaft, and each group of rotating parts is composed of vertically symmetrically arranged rotating parts.

[0007] Furthermore, a filter screen is included, which is fixedly connected to the feed port on the cover and is used to filter sediment and impurities.

[0008] Furthermore, a feed port for feeding materials into the centrifuge is provided above the cover.

[0009] Furthermore, it also includes a feeding mechanism for feeding the restricted material into the centrifuge, the feeding mechanism includes an electric push rod, the electric push rod is fixedly connected to one side of the fixed part, the electric push rod is electrically connected to the external control system through a control module, and slide grooves are provided on both sides of the fixed part, the first telescopic part is slidably connected in the slide groove of the fixed part, the first telescopic part is laterally symmetrically arranged, one of the first telescopic parts is fixedly connected to the telescopic end of the electric push rod, the second telescopic part is slidably connected in the slide groove of the fixed part, the second telescopic part is laterally symmetrically arranged, the third guide rail is fixedly connected to one side of the bottom plate, and one of the second telescopic parts slides The electric push rod is movably connected to the third guide rail, a tension spring is wound on the third guide rail, one end of the tension spring is fixedly connected to the second telescopic member close to the electric push rod, the other end of the tension spring is fixedly connected to the third guide rail, a pushing member is slidably connected between the symmetrically arranged first telescopic members, another pushing member is slidably connected between the symmetrically arranged second telescopic members, an inclined surface is arranged on the inner side of the pushing member, a releasing member is fixedly connected to the bottom of the protective shell, the releasing member is squeezed and matched with the inclined surface of the pushing member, a driving component is fixedly connected to the side of the bottom plate away from the third guide rail, and the driving component is used to drive the second telescopic member to move.

[0010] Furthermore, the driving assembly includes a pulley, which is rotatably connected to a side of the base plate away from the third guide rail, and a pull rope is wound around the pulley. One end of the pull rope is fixedly connected to one of the first telescopic members, and the other end of the pull rope is fixedly connected to the second telescopic member on the same side.

[0011] Furthermore, it also includes a dredging mechanism for dredging the edge of the net, the dredging mechanism includes an extrusion piece, the extrusion piece is rotatably connected to a symmetrically arranged rotating piece close to the filter, a symmetrically arranged fourth guide rail is fixedly connected to the cover, the connecting piece is slidably connected to the fourth guide rail, the extrusion piece and the connecting piece are extruded and matched, the force storage spring is wound on the fourth guide rail, one end of the force storage spring is fixedly connected to the fourth guide rail, the other end of the force storage spring is fixedly connected to the connecting piece, a connecting ring is fixedly connected between the symmetrically arranged connecting pieces, a plurality of dredging pieces are fixedly connected to the connecting ring, and the dredging pieces are evenly distributed on the connecting ring.

[0012] Furthermore, it also includes a heating mechanism for heating materials with higher viscosity, the heating mechanism includes a heating element, the heating element is fixedly connected to the bottom of a symmetrically arranged fixed rod, one of the rotating parts has a straight groove inside, the pressure sensor is fixedly connected to the side of the straight groove close to the rotating shaft, the extrusion assembly is arranged in the straight groove of the rotating part, and the extrusion assembly is used to extrude the pressure sensor.

[0013] Furthermore, the extrusion assembly includes a slider, which is slidably connected in the I-shaped groove, one end of the linear spring is fixedly connected to the rotating member, the other end of the linear spring is fixedly connected to the slider, and the pressure sensor is extruded and matched with the slider.

[0014] Furthermore, the heating element is electrically connected to the pressure sensor through the control module, and when the pressure sensor receives the pressure, the heating element will start to heat.

[0015] The beneficial effects are:

[0016] 1. The present invention stirs the material evenly by the rotating part. When the material on the bottom plate reaches a certain amount, the bottom plate will move downward to leave a gap with the fixed part, and the material will flow into the drum of the sedimentation centrifuge from the gap. This can make the material more uniform and limit the amount of material to be centrifuged, so that the centrifugal force is balanced and the centrifugal cycle is shortened.

[0017] 2. The present invention pushes the material on the bottom plate down through the pusher, speeding up the speed at which the material falls onto the drum, and squeezes the protective shell through the inclined surface of the pusher, so that the bottom plate moves downward, and the remaining material on the bottom plate can flow out from the gap, thereby avoiding material residue.

[0018] 3. In the present invention, the extrusion piece spring rotates upward under the action of centrifugal force, and the extrusion piece will squeeze the connecting piece, the connecting ring and the dredging piece to move upward. The dredging piece moves upward and is inserted into the filter holes around the filter screen. Through the above operation, the sediment in the filter holes can be pushed out, the filter screen is dredged, and the material can enter smoothly.

[0019] 4. The present invention blocks the rotating parts by materials with relatively high viscosity. The slider will squeeze the pressure sensor because the centrifugal force it receives is smaller than the elastic force of the linear spring. When the pressure sensor is squeezed, the heating element will heat the material, thereby reducing the viscosity of the material and enhancing the separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a three-dimensional structural cross-sectional view of the fixing part, rotating shaft, rotating part and other components of the present invention.

[0023] Figure 4 It is a sectional view of the three-dimensional structure of the protective housing, rotating parts, bottom plate and other components of the present invention.

[0024] Figure 5 It is a sectional view of the three-dimensional structure of the electric push rod, tension spring, rope pulley and other components of the present invention.

[0025] Figure 6 It is a sectional view of the three-dimensional structure of the pull rope, rope wheel, release member and other components of the present invention.

[0026] Figure 7 It is a sectional view of the three-dimensional structure of the connecting piece, the clearing piece, the force storage spring and other components of the present invention.

[0027] Figure 8 It is a sectional view of the three-dimensional structure of the filter screen, dredging piece, connecting ring and other components of the present invention.

[0028] Fig. 9 It is a sectional view of the three-dimensional structure of the slider, pressure sensor, heating element and other components of the present invention.

[0029] In the accompanying drawings: 1-first motor, 11-sedimentation centrifuge, 12-cover, 121-filter, 13-fixed part, 14-rotating shaft, 15-rotating part, 16-protective shell, 17-second motor, 18-bottom plate, 181-first guide rail, 182-second guide rail, 19-pressure spring, 110-connecting plate, 111-compression spring, 112-clip, 113-fixed plate, 114-fixed rod, 2-electric push rod, 21-first telescopic part, 22-second telescopic part, 23-third guide rail, 24-tension spring, 25-pushing part, 26-release part, 27-pull rope, 28-pulley, 3-extrusion part, 31-connecting part, 32-fourth guide rail, 33-force storage spring, 34-connecting ring, 35-clearing part, 4-pressure sensor, 41-slider, 42-linear spring, 43-heating part. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example 1: A decanter centrifuge for separating impurities, such as Figure 1-Figure 4 As shown, it includes a first motor 1, a sedimentation centrifuge 11, a cover 12, a filter 121, a fixing member 13, a rotating shaft 14, a rotating member 15, a protective shell 16, a second motor 17, a bottom plate 18, a first guide rail 181, a pressure spring 19, a connecting plate 110, a compression spring 111, a buckle 112, a fixing plate 113 and a fixing rod 114. The cover 12 is fixedly connected to the top of the sedimentation centrifuge 11, and a feed port is opened on the top of the cover 12. The first motor 1 is fixedly connected to the bottom of the sedimentation centrifuge 11, and two fixing plates 113 are fixedly connected to the cover. At the bottom of the cover 12, the fixing plate 113 is symmetrically arranged, the fixing member 13 is fixedly connected to the bottom of the cover 12, and the left and right sides of the fixing member 13 are provided with a card hole, the fixing member 13 is located inside the fixing plate 113, the connecting plate 110 is fixedly connected between the fixing plates 113 arranged symmetrically, and the connecting plate 110 is an inclined plate inclined downward to the outside, so that the material sliding onto the connecting plate 110 can slide down faster, the first guide rail 181 is fixedly connected to the connecting plate 110, the bottom plate 18 is slidably connected to the first guide rail 181, and the pressure spring 19 is wound On the first guide rail 181, one end of the pressure spring 19 is fixedly connected to the bottom plate 18, and the other end of the pressure spring 19 is fixedly connected to the first guide rail 181. The left and right sides of the bottom plate 18 are fixedly connected to the second guide rail 182. The buckle 112 is slidably connected to the second guide rail 182. The outer side of the buckle 112 is a hemisphere. The hemisphere of the buckle 112 is engaged with the card hole on the fixing member 13. The compression spring 111 is respectively wound on the second guide rail 182. One end of the compression spring 111 is fixedly connected to the buckle 112. The compression spring 111 is The other ends of 11 are fixedly connected to the bottom plate 18, the fixing rods 114 are respectively fixedly connected to the front and rear inner sides of the fixing member 13, the protective shell 16 is connected between the two fixing rods 114, the second motor 17 is fixedly connected in the protective shell 16, the rotating shaft 14 is rotatably connected to the output shaft of the second motor 17, two groups of rotating members 15 symmetrically arranged up and down are fixedly connected to the rotating shaft 14, each group of rotating members 15 consists of two rotating members 15, and the filter screen 121 is fixedly connected to the feed port on the cover 12, and the filter screen 121 is used to filter sediment and impurities.

[0032] When the material is subjected to sedimentation centrifugation, the material will enter the drum inside the centrifuge from the feed port all at once, which will cause uneven distribution of the material in the drum, which may easily cause the centrifuge to rotate unbalancedly or cause vibration during operation. At the same time, uneven feeding will cause uneven centrifugal force, which will extend the production cycle. Therefore, it is necessary to ensure that the material entering the drum for centrifugation is uniform as much as possible and limit the amount of feeding. When the material needs to be subjected to sedimentation centrifugation, the material needs to be put in from the feed port first. The material will enter from the feed port above the bottom plate 18 and into the fixing member 13, and then the first motor 1 is started, the sedimentation centrifuge 11 will rotate, the fixing member 13 and the bottom plate 18 will rotate synchronously, and the material will also rotate in the fixing member 13. At the same time, the first motor 1 is started. The second motor 17, the speed of the output shaft of the second motor 17 will be greater than the speed of the sedimentation centrifuge 11, the second motor 17 will drive the shaft 14 to rotate, the shaft 14 will drive the rotating member 15 to rotate, the speed of the rotating member 15 will also be greater than the speed of the fixed member 13 and the bottom plate 18, so that the speed of the rotating member 15 will be greater than the speed of the material, the rotation of the rotating member 15 will stir the material in the fixed member 13, making the material more uniform, after the material is poured into the fixed member 13, when the mass of the material in the fixed member 13 reaches a certain value, because the outer side of the buckle 112 is a hemisphere, under the self-gravity of the material, the hemisphere of the buckle 112 will be squeezed with the clamping hole on the fixed plate 113, and the buckle 112 will move toward the direction close to the protective shell 16, the buckle 112 will slip out of the card hole, at this time the compression spring 111 will be compressed, the bottom plate 18 will move downward due to the material and its own gravity, at this time the pressure spring 19 is compressed, the bottom plate 18 will drive the material to move downward together, the bottom plate 18 moves downward and there will be a gap between it and the fixing part 13, and the material will flow out from the gap and slide into the drum for sedimentation and centrifugation. When the material flows out from the gap, a small amount of material may fall onto the connecting plate 110, because the connecting plate 110 is an inclined plate inclined outward, the material falling on the connecting plate 110 will slide off the inclined plate, and when the material on the bottom plate 18 basically flows out of the gap, the elastic force of the compressed pressure spring 19 will be greater than the gravity of the bottom plate 18, the pressure spring 19 will stretch, and the pressure The extension of the force spring 19 will drive the bottom plate 18 to move upward, and the upward movement of the bottom plate 18 will drive the second guide rail 182 and the buckle 112 to move upward. During the upward movement of the buckle 112, the hemisphere on the outside of the buckle 112 will contact the clamping hole of the fixed plate 113. At this time, the compressed compression spring 111 extends, and the extension of the compression spring 111 will drive the buckle 112 to move away from the rotating shaft 14. The movement of the buckle 112 will be re-clamped into the clamping hole of the buckle 112. When the material entering the drum completes sedimentation and centrifugation, the first motor 1 and the second motor 17 can be turned off. Through the above operation, the material can be evenly stirred and fall into the drum of the sedimentation centrifuge 11 in a uniform amount for separation, thereby avoiding uneven material feeding and extending the separation cycle.

[0033] Embodiment 2: Based on embodiment 1, Figure 5 and Figure 6 As shown, it also includes a feeding mechanism for feeding the restricted material into the centrifuge, the feeding mechanism includes an electric push rod 2, a first telescopic member 21, a second telescopic member 22, a third guide rail 23, a tension spring 24, a pushing member 25, a releasing member 26, a pull rope 27 and a pulley 28, the electric push rod 2 is fixedly connected to the left side of the fixed member 13, the electric push rod 2 is electrically connected to the external control system through a control module, and a slide groove is provided on both sides of the fixed member 13, the first telescopic member 21 is respectively slidably connected to the slide groove of the fixed member 13, the first telescopic member 21 is symmetrically arranged on the left and right, the first telescopic member 21 on the left side is fixedly connected to the telescopic end of the electric push rod 2, the second telescopic member 22 is respectively slidably connected to the slide groove of the fixed member 13, the second telescopic member 22 is symmetrically arranged on the left and right, the third guide rail 23 is fixedly connected to the left front side of the bottom plate 18, and the second telescopic member 21 on the left side is fixedly connected to the telescopic end of the electric push rod 2, and the second telescopic member 22 is respectively slidably connected to the slide groove of the fixed member 13, and the second telescopic member 22 is symmetrically arranged on the left and right. 22 is slidably connected to the third guide rail 23, a tension spring 24 is wound on the third guide rail 23, one end of the tension spring 24 is fixedly connected to the second telescopic member 22 on the left, and the other end of the tension spring 24 is fixedly connected to the third guide rail 23, a pushing member 25 is slidably connected between the first telescopic members 21 symmetrically arranged on the left and right, and another pushing member 25 is slidably connected between the second telescopic members 22 symmetrically arranged on the left and right, an inclined surface is arranged on the inner side of the pushing member 25, a pulley 28 is rotatably connected to the right front side of the bottom plate 18, a pull rope 27 is wound on the pulley 28, one end of the pull rope 27 is fixedly connected to the first telescopic member 21 on the right, and the other end of the pull rope 27 is fixedly connected to the second telescopic member 22 on the right, a releasing member 26 is fixedly connected directly below the protective shell 16, and the releasing member 26 is squeezed and matched with the inclined surface of the pushing member 25.

[0034] As mentioned above, when the material reaches a certain amount, the bottom plate 18 will move downward, and the material will slide from the gap between the fixing member 13 and the bottom plate 18. Because the material is in a solid-liquid mixed state, the flow rate is slow, and when the bottom plate 18 moves upward to reset, there will still be material residue on the bottom plate 18. At this time, the fixing member 13 has wrapped the bottom plate 18, and the material cannot continue to flow out. Therefore, it is necessary to set a feeding mechanism to assist the material in feeding into the drum of the centrifuge. When the bottom plate 18 moves downward, the material will flow out from the gap between the bottom plate 18 and the fixing member 13. Figure 5As shown, the telescopic end of the electric push rod 2 is in a state of extending forward. At this time, the electric push rod 2 can be controlled to move the telescopic end of the electric push rod 2 backward. The telescopic end of the electric push rod 2 will drive the first telescopic member 21 on the left to move backward. The backward movement of the first telescopic member 21 on the left will drive the rear pushing member 25 to move backward. The movement of the rear pushing member 25 will drive the first telescopic member 21 on the right to move backward. The movement of the first telescopic member 21 on the right will pull one end of the pull rope 27 connected to the first telescopic member 21 to move backward, and the other end of the pull rope 27 will move forward. The forward movement of the other end of the pull rope 27 will pull the second telescopic member 22 on the right to move forward, and the second telescopic member 22 on the right will move forward. The forward movement of the second telescopic member 22 will drive the front pushing member 25 to move forward, and the forward movement of the front pushing member 25 will drive the second telescopic member 22 on the left to move forward. At this time, the tension spring 24 is compressed, the rear pushing member 25 moves backward, and the front pushing member 25 moves forward to push the material on the bottom plate 18 into the drum of the first motor 1. Then the electric push rod 2 is controlled to make the telescopic end of the electric push rod 2 move forward and reset. The forward movement of the telescopic end of the electric push rod 2 will drive the first telescopic member 21 on the left to move forward, and the forward movement of the first telescopic member 21 on the left will drive the rear pushing member 25 to move forward. The movement of the rear pushing member 25 will drive the first The telescopic member 21 moves forward, and the first telescopic member 21 on the right moves forward and no longer tightens the drawstring 27, and the drawstring 27 is in a relaxed state. At this time, the compressed tension spring 24 will stretch, and the stretching spring 24 will push the second telescopic member 22 on the left to move backward. The backward movement of the second telescopic member 22 on the left will drive the front pushing member 25 and the second telescopic member 22 on the right to move backward, so that the front pushing member 25 will move backward and reset, and the rear pushing member 25 will move forward and reset, and the above operation can be repeated to repeatedly push out the material on the bottom plate 18. As shown above, after the bottom plate 18 moves upward and resets, there will still be material remaining on the bottom plate 18 that cannot flow out. It can be seen that the telescopic end of the electric push rod 2 moves forward, and the telescopic end of the electric push rod 2 moves forward, which will drive the first telescopic member 21 on the left to move forward. The forward movement of the first telescopic member 21 on the left will drive the rear pushing member 25 to move forward. In the process of the rear pushing member 25 moving forward, the inclined surface of the pushing member 25 will gradually contact and squeeze the release member 26. Because the release member 26 cannot move, the bottom plate 18 will move downward. The downward movement of the bottom plate 18 will re-generate a gap with the bottom of the fixing member 13, and the residual material on the bottom plate 18 will flow out from the gap. This can speed up the removal of the material on the bottom plate 18 and send the last remaining material into the centrifuge.

[0035] like Figure 7 and Figure 8As shown, it also includes a dredging mechanism for dredging the edge of the net, and the dredging mechanism includes an extrusion member 3, a connecting member 31, a fourth guide rail 32, a force storage spring 33, a connecting ring 34 and a dredging member 35. The extrusion member 3 is rotatably connected to the two rotating members 15 above, and the symmetrically arranged fourth guide rails 32 are fixedly connected to the cover 12. The connecting members 31 are slidably connected to the fourth guide rails 32, and the extrusion member 3 is extruded and matched with the connecting member 31. The force storage springs 33 are respectively wound on the fourth guide rails 32, one end of the force storage springs 33 is fixedly connected to the cover 12, and the other end of the force storage springs 33 is fixedly connected to the connecting member 31. The connecting ring 34 is fixedly connected between the connecting members 31 symmetrically arranged on the left and right. Eight dredging members 35 are fixedly connected to the connecting ring 34, and the dredging members 35 are evenly distributed on the connecting ring 34. The dredging members 35 are used to dredge the sediment on the filter screen 121.

[0036] When materials with high concentrations enter the filter screen 121, precipitation is likely to occur on the filter screen 121, and impurities will also be filtered on the filter screen 121 during the process of the materials entering. The precipitation and impurities on the filter screen 121 will block the filter screen 121, making it impossible for the materials to fall smoothly into the sedimentation centrifuge 11. Because the middle of the filter screen 121 is a larger square filter hole, and the periphery of the filter screen 121 is a smaller irregular filter hole, the filter holes around the filter screen 121 are more easily blocked. Therefore, it is necessary to set a dredging mechanism to dredge the filter holes around the filter screen 121. When the rotating member 15 rotates to stir the materials, the extruding member 3 will rotate and expand upward under the action of centrifugal force. The upward rotation of the extruding member 3 will squeeze the connecting member 31. Under the extrusion action of the extruding member 3, the connecting member 31 will move upward, and the storage spring 33 will be compressed. The upward movement of the connecting member 31 will bring The movable connecting ring 34 moves upward, and the upward movement of the connecting ring 34 will drive the clearing piece 35 to move upward. The upward movement of the clearing piece 35 will squeeze the sediment in the filter holes around the filter screen 121 upward, and the sediment will fall out of the filter holes under the squeezing action of the clearing piece 35. When the centrifugation is completed, the first motor 1 and the second motor 17 are turned off, the rotating piece 15 will stop rotating, and the extrusion piece 3 will rotate downward and reset due to its own gravity. The extrusion piece 3 no longer squeezes the connecting piece 31. At this time, the compressed force storage spring 33 will extend, and the extension of the force storage spring 33 will drive the connecting piece 31 to move downward and reset. The connecting piece 31 will drive the connecting ring 34 and the clearing piece 35 to move downward and reset, and the clearing piece 35 will be removed from the filter hole. In this way, the filter holes around the filter screen 121 can be cleared every time the material is centrifuged to allow the material to enter smoothly.

[0037] like Fig. 9As shown, a heating mechanism for heating materials with higher viscosity is also included, and the heating mechanism includes a pressure sensor 4, a slider 41, a linear spring 42 and a heating element 43. A slot is provided inside one of the rotating members 15 of a group of rotating members 15 located below, and the slider 41 is slidably connected in the slot. One end of the linear spring 42 is fixedly connected to the rotating member 15, and the other end of the linear spring 42 is fixedly connected to the slider 41. The pressure sensor 4 is fixedly connected to one side of the slot close to the rotating shaft 14, and the pressure sensor 4 is squeezed and matched with the slider 41. The heating elements 43 are respectively fixedly connected to the bottom of the fixed rod 114. The heating elements 43 are electrically connected to the pressure sensor 4 through the control module. When the pressure sensor 4 receives pressure, the heating element 43 will start to heat.

[0038] When the temperature rises, the intermolecular movement will intensify, the distance between molecules will increase, and the viscosity of the suspension will decrease. The suspension with lower viscosity will be subject to less viscous resistance during the separation process, the particles can settle more smoothly, and the solid-liquid separation will be more thorough. When it is necessary to precipitate and centrifuge some materials with higher viscosity, the viscosity of the material can be reduced by increasing the material temperature, thereby improving the effect of solid-liquid separation. Fig. 9 As shown, the centrifuge starts to work, the linear spring 42 is in an extended state, and the slider 41 is tightly attached to the pressure sensor 4. Under normal circumstances, the material enters from the feed port, the rotating member 15 rotates to stir the material, the material has little resistance to the rotating member 15, and the rotation speed of the rotating member 15 is equivalent to the rotation speed of the output shaft of the second motor 17. At this time, the centrifugal force on the slider 41 will be greater than the elastic force of the linear spring 42, and the slider 41 will move away from the rotating shaft 14. The slider 41 will be separated from the pressure sensor 4, and the slider 41 will not squeeze the pressure sensor 4. When it is necessary to separate materials with higher viscosity, due to the high viscosity of the material, the material's resistance to the rotating member 15 will increase, so that the rotation speed of the rotating member 15 will slow down, and the rotation speed of the rotating member 15 will be less than the rotation speed of the output shaft of the second motor 17. At this time, the centrifugal force on the slider 41 will be smaller than the elastic force of the spring, and the slider 41 will squeeze the pressure sensor 4. Because the pressure sensor 4 is electrically connected to the heating element 43 through the control module, the heating element 43 will heat the material. In the process of the heating element 43 heating the material, the viscosity of the material will decrease. After the viscosity of the material decreases, the resistance of the material to the rotating member 15 will decrease. At this time, the centripetal force on the slider 41 will be greater than the elastic force of the linear spring 42, and the slider 41 will be separated from the pressure sensor 4. The slider 41 no longer squeezes the pressure sensor 4, and the heating element 43 will stop heating the material. Then the material will be evenly stirred and flow out from the gap between the fixing member 13 and the bottom plate 18 for sedimentation and centrifugation. In this way, the material with higher viscosity can be automatically heated, the viscosity of the material can be reduced, and the separation effect can be enhanced.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A decanter centrifuge for separating impurities, comprising a cover (12), the cover (12) being fixedly connected to the top of the decanter centrifuge (11), and a first motor (1) being fixedly connected to the bottom of the decanter centrifuge (11), characterized in that: The cover (12) further comprises a fixing plate (113), wherein the fixing plates (113) are symmetrically arranged and fixedly connected to the bottom of the cover (12), a fixing member (13) is fixedly connected to the bottom of the cover (12), and a clamping hole is provided on both sides of the fixing member (13). A connecting plate (110) is fixedly connected between the fixing plates (113) symmetrically arranged, and the connecting plate (110) is an inclined plate inclined downward to the outside, a first guide rail (181) is fixedly connected to the connecting plate (110), a bottom plate (18) is slidably connected to the first guide rail (181), a pressure spring (19) is wound on the first guide rail (181), one end of the pressure spring (19) is fixedly connected to the bottom plate (18), and the pressure spring (19) is The other end of the first guide rail (19) is fixedly connected to the first guide rail (181), a symmetrically arranged second guide rail (182) is fixedly connected to the side of the bottom plate (18), a buckle (112) is slidably connected to the second guide rail (182), the outer side of the buckle (112) is a hemisphere, the hemisphere of the buckle (112) is engaged with the hole on the fixing member (13), a compression spring (111) is wound on the second guide rail (182), one end of the compression spring (111) is fixedly connected to the buckle (112), and the other end of the compression spring (111) is fixedly connected to the second guide rail (182), a stirring component is arranged inside the fixing member (13), and the stirring component is used to stir the material.

2. A decanter centrifuge for separating impurities according to claim 1, characterized in that: The stirring assembly comprises a fixed rod (114), wherein the symmetrically arranged fixed rod (114) is fixedly connected to the inner side of a fixed member (13), a protective shell (16) is connected between the symmetrically arranged fixed rods (114), a second motor (17) is fixedly connected inside the protective shell (16), a rotating shaft (14) is rotatably connected to the output shaft of the second motor (17), and two groups of longitudinally symmetrically arranged rotating members (15) are fixedly connected to the rotating shaft (14), and each group of rotating members (15) is composed of vertically symmetrically arranged rotating members (15).

3. A decanter centrifuge for impurity separation as claimed in claim 2, characterized in that: The invention also comprises a filter screen (121), which is fixedly connected to the feed port on the cover (12), and the filter screen (121) is used to filter sediment and impurities.

4. A decanter centrifuge for impurity separation as claimed in claim 3, characterized in that: A feed port for feeding materials into the centrifuge (11) is provided above the cover (12).

5. A decanter centrifuge for impurity separation as claimed in claim 4, characterized in that: The invention also comprises a feeding mechanism for feeding the restricted material into the centrifuge, wherein the feeding mechanism comprises an electric push rod (2), the electric push rod (2) is fixedly connected to one side of the fixing member (13), the electric push rod (2) is electrically connected to an external control system through a control module, a slide groove is provided on both sides of the fixing member (13), a first telescopic member (21) is slidably connected to the slide groove of the fixing member (13), the first telescopic members (21) are arranged in a transverse symmetrical manner, one of the first telescopic members (21) is fixedly connected to the telescopic end of the electric push rod (2), a second telescopic member (22) is slidably connected to the slide groove of the fixing member (13), the second telescopic member (22) is arranged in a transverse symmetrical manner, a third guide rail (23) is fixedly connected to one side of the bottom plate (18), one of the second telescopic members (22) is slidably connected to the third guide rail (23), and a third guide rail (23) is fixedly connected to one side of the bottom plate (18). ), a tension spring (24) is wound on the third guide rail (23), one end of the tension spring (24) is fixedly connected to the second telescopic member (22) close to the electric push rod (2), the other end of the tension spring (24) is fixedly connected to the third guide rail (23), a push member (25) is slidably connected between the symmetrically arranged first telescopic members (21), another push member (25) is slidably connected between the symmetrically arranged second telescopic members (22), an inclined surface is arranged on the inner side of the push member (25), a release member (26) is fixedly connected to the bottom of the protective shell (16), the release member (26) and the inclined surface of the push member (25) are squeezed and matched, a drive component is fixedly connected to the side of the bottom plate (18) away from the third guide rail (23), and the drive component is used to drive the second telescopic member (22) to move.

6. A decanter centrifuge for separating impurities as claimed in claim 5, characterized in that: The driving assembly comprises a rope wheel (28), the rope wheel (28) is rotatably connected to a side of the bottom plate (18) away from the third guide rail (23), a pull rope (27) is wound around the rope wheel (28), one end of the pull rope (27) is fixedly connected to one of the first telescopic members (21), and the other end of the pull rope (27) is fixedly connected to a second telescopic member (22) on the same side.

7. A decanter centrifuge for separating impurities as claimed in claim 6, characterized in that: The invention also comprises a dredging mechanism for dredging the edge of the net, wherein the dredging mechanism comprises an extrusion member (3), the extrusion member (3) is rotatably connected to a symmetrically arranged rotating member (15) near the filter screen (121), a symmetrically arranged fourth guide rail (32) is fixedly connected to the cover (12), a connecting member (31) is slidably connected to the fourth guide rail (32), the extrusion member (3) and the connecting member (31) are extruded and matched, a force storage spring (33) is wound on the fourth guide rail (32), one end of the force storage spring (33) is fixedly connected to the fourth guide rail (32), the other end of the force storage spring (33) is fixedly connected to the connecting member (31), a connecting ring (34) is fixedly connected between the symmetrically arranged connecting members (31), a plurality of dredging members (35) are fixedly connected to the connecting ring (34), and the dredging members (35) are evenly distributed on the connecting ring (34).

8. A decanter centrifuge for separating impurities as claimed in claim 7, characterized in that: The invention also comprises a heating mechanism for heating materials with high viscosity, the heating mechanism comprising a heating element (43), the heating element (43) being fixedly connected to the bottom of a symmetrically arranged fixed rod (114), one of the rotating elements (15) having a straight groove formed therein, the pressure sensor (4) being fixedly connected to a side of the straight groove close to the rotating shaft (14), the extrusion assembly being arranged in the straight groove of the rotating element (15), the extrusion assembly being used for extruding the pressure sensor (4).

9. A decanter centrifuge for separating impurities as claimed in claim 8, characterized in that: The extrusion assembly comprises a slider (41), the slider (41) is slidably connected in a straight groove, one end of a linear spring (42) is fixedly connected to a rotating member (15), the other end of the linear spring (42) is fixedly connected to the slider (41), and the pressure sensor (4) is extrusion-matched with the slider (41).

10. A decanter centrifuge for separating impurities according to claim 9, characterized in that: The heating element (43) is electrically connected to the pressure sensor (4) via a control module, and when the pressure sensor (4) receives pressure, the heating element (43) starts to heat.

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